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vfs: Make function pointer names consistent. They all end in _fn
[Samba/gebeck_regimport.git] / source3 / passdb / pdb_interface.c
blobb202d43a5be44b706c05d982ddc7f46a197554fd
1 /*
2 Unix SMB/CIFS implementation.
3 Password and authentication handling
4 Copyright (C) Andrew Bartlett 2002
5 Copyright (C) Jelmer Vernooij 2002
6 Copyright (C) Simo Sorce 2003
7 Copyright (C) Volker Lendecke 2006
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23 #include "includes.h"
24 #include "system/passwd.h"
25 #include "passdb.h"
26 #include "secrets.h"
27 #include "messages.h"
28 #include "../librpc/gen_ndr/samr.h"
29 #include "../librpc/gen_ndr/drsblobs.h"
30 #include "../librpc/gen_ndr/ndr_drsblobs.h"
31 #include "memcache.h"
32 #include "nsswitch/winbind_client.h"
33 #include "../libcli/security/security.h"
34 #include "../lib/util/util_pw.h"
35
36 #undef DBGC_CLASS
37 #define DBGC_CLASS DBGC_PASSDB
38
39 static_decl_pdb;
40
41 static struct pdb_init_function_entry *backends = NULL;
42
43 static void lazy_initialize_passdb(void)
44 {
45 static bool initialized = False;
46 if(initialized) {
47 return;
48 }
49 static_init_pdb;
50 initialized = True;
51 }
52
53 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
54 const char **name,
55 enum lsa_SidType *psid_name_use,
56 uid_t *uid, gid_t *gid);
57
58 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
59 {
60 struct pdb_init_function_entry *entry = backends;
61
62 if(version != PASSDB_INTERFACE_VERSION) {
63 DEBUG(0,("Can't register passdb backend!\n"
64 "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
65 "while this version of samba uses version %d\n",
66 version,PASSDB_INTERFACE_VERSION));
67 return NT_STATUS_OBJECT_TYPE_MISMATCH;
68 }
69
70 if (!name || !init) {
71 return NT_STATUS_INVALID_PARAMETER;
72 }
73
74 DEBUG(5,("Attempting to register passdb backend %s\n", name));
75
76 /* Check for duplicates */
77 if (pdb_find_backend_entry(name)) {
78 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
79 return NT_STATUS_OBJECT_NAME_COLLISION;
80 }
81
82 entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
83 entry->name = smb_xstrdup(name);
84 entry->init = init;
85
86 DLIST_ADD(backends, entry);
87 DEBUG(5,("Successfully added passdb backend '%s'\n", name));
88 return NT_STATUS_OK;
89 }
90
91 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
92 {
93 struct pdb_init_function_entry *entry = backends;
94
95 while(entry) {
96 if (strcmp(entry->name, name)==0) return entry;
97 entry = entry->next;
98 }
99
100 return NULL;
101 }
102
103 const struct pdb_init_function_entry *pdb_get_backends(void)
104 {
105 return backends;
106 }
107
108
109 /*
110 * The event context for the passdb backend. I know this is a bad hack and yet
111 * another static variable, but our pdb API is a global thing per
112 * definition. The first use for this is the LDAP idle function, more might be
113 * added later.
114 *
115 * I don't feel too bad about this static variable, it replaces the
116 * smb_idle_event_list that used to exist in lib/module.c. -- VL
117 */
118
119 static struct tevent_context *pdb_tevent_ctx;
120
121 struct tevent_context *pdb_get_tevent_context(void)
122 {
123 return pdb_tevent_ctx;
124 }
125
126 /******************************************************************
127 Make a pdb_methods from scratch
128 *******************************************************************/
129
130 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
131 {
132 char *module_name = smb_xstrdup(selected);
133 char *module_location = NULL, *p;
134 struct pdb_init_function_entry *entry;
135 NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
136
137 lazy_initialize_passdb();
138
139 p = strchr(module_name, ':');
140
141 if (p) {
142 *p = 0;
143 module_location = p+1;
144 trim_char(module_location, ' ', ' ');
145 }
146
147 trim_char(module_name, ' ', ' ');
148
149
150 DEBUG(5,("Attempting to find a passdb backend to match %s (%s)\n", selected, module_name));
151
152 entry = pdb_find_backend_entry(module_name);
153
154 /* Try to find a module that contains this module */
155 if (!entry) {
156 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
157 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
158 DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
159 SAFE_FREE(module_name);
160 return NT_STATUS_UNSUCCESSFUL;
161 }
162 }
163
164 /* No such backend found */
165 if(!entry) {
166 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
167 SAFE_FREE(module_name);
168 return NT_STATUS_INVALID_PARAMETER;
169 }
170
171 DEBUG(5,("Found pdb backend %s\n", module_name));
172
173 if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
174 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
175 selected, nt_errstr(nt_status)));
176 SAFE_FREE(module_name);
177 return nt_status;
178 }
179
180 SAFE_FREE(module_name);
181
182 DEBUG(5,("pdb backend %s has a valid init\n", selected));
183
184 return nt_status;
185 }
186
187 /******************************************************************
188 Return an already initialized pdb_methods structure
189 *******************************************************************/
190
191 static struct pdb_methods *pdb_get_methods_reload( bool reload )
192 {
193 static struct pdb_methods *pdb = NULL;
194
195 if ( pdb && reload ) {
196 pdb->free_private_data( &(pdb->private_data) );
197 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
198 char *msg = NULL;
199 if (asprintf(&msg, "pdb_get_methods_reload: "
200 "failed to get pdb methods for backend %s\n",
201 lp_passdb_backend()) > 0) {
202 smb_panic(msg);
203 } else {
204 smb_panic("pdb_get_methods_reload");
205 }
206 }
207 }
208
209 if ( !pdb ) {
210 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
211 char *msg = NULL;
212 if (asprintf(&msg, "pdb_get_methods_reload: "
213 "failed to get pdb methods for backend %s\n",
214 lp_passdb_backend()) > 0) {
215 smb_panic(msg);
216 } else {
217 smb_panic("pdb_get_methods_reload");
218 }
219 }
220 }
221
222 return pdb;
223 }
224
225 static struct pdb_methods *pdb_get_methods(void)
226 {
227 return pdb_get_methods_reload(False);
228 }
229
230 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
231 {
232 struct pdb_methods *pdb = pdb_get_methods();
233 return pdb->get_domain_info(pdb, mem_ctx);
234 }
235
236 /**
237 * @brief Check if the user account has been locked out and try to unlock it.
238 *
239 * If the user has been automatically locked out and a lockout duration is set,
240 * then check if we can unlock the account and reset the bad password values.
241 *
242 * @param[in] sampass The sam user to check.
243 *
244 * @return True if the function was successfull, false on an error.
245 */
246 static bool pdb_try_account_unlock(struct samu *sampass)
247 {
248 uint32_t acb_info = pdb_get_acct_ctrl(sampass);
249
250 if ((acb_info & ACB_NORMAL) && (acb_info & ACB_AUTOLOCK)) {
251 uint32_t lockout_duration;
252 time_t bad_password_time;
253 time_t now = time(NULL);
254 bool ok;
255
256 ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION,
257 &lockout_duration);
258 if (!ok) {
259 DEBUG(0, ("pdb_try_account_unlock: "
260 "pdb_get_account_policy failed.\n"));
261 return false;
262 }
263
264 if (lockout_duration == (uint32_t) -1 ||
265 lockout_duration == 0) {
266 DEBUG(9, ("pdb_try_account_unlock: No reset duration, "
267 "can't reset autolock\n"));
268 return false;
269 }
270 lockout_duration *= 60;
271
272 bad_password_time = pdb_get_bad_password_time(sampass);
273 if (bad_password_time == (time_t) 0) {
274 DEBUG(2, ("pdb_try_account_unlock: Account %s "
275 "administratively locked out "
276 "with no bad password "
277 "time. Leaving locked out.\n",
278 pdb_get_username(sampass)));
279 return true;
280 }
281
282 if ((bad_password_time +
283 convert_uint32_t_to_time_t(lockout_duration)) < now) {
284 NTSTATUS status;
285
286 pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK,
287 PDB_CHANGED);
288 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
289 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
290
291 become_root();
292 status = pdb_update_sam_account(sampass);
293 unbecome_root();
294 if (!NT_STATUS_IS_OK(status)) {
295 DEBUG(0, ("_samr_OpenUser: Couldn't "
296 "update account %s - %s\n",
297 pdb_get_username(sampass),
298 nt_errstr(status)));
299 return false;
300 }
301 }
302 }
303
304 return true;
305 }
306
307 /**
308 * @brief Get a sam user structure by the given username.
309 *
310 * This functions also checks if the account has been automatically locked out
311 * and unlocks it if a lockout duration time has been defined and the time has
312 * elapsed.
313 *
314 * @param[in] sam_acct The sam user structure to fill.
315 *
316 * @param[in] username The username to look for.
317 *
318 * @return True on success, false on error.
319 */
320 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
321 {
322 struct pdb_methods *pdb = pdb_get_methods();
323 struct samu *for_cache;
324 const struct dom_sid *user_sid;
325 NTSTATUS status;
326 bool ok;
327
328 status = pdb->getsampwnam(pdb, sam_acct, username);
329 if (!NT_STATUS_IS_OK(status)) {
330 return false;
331 }
332
333 ok = pdb_try_account_unlock(sam_acct);
334 if (!ok) {
335 DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n",
336 username));
337 }
338
339 for_cache = samu_new(NULL);
340 if (for_cache == NULL) {
341 return False;
342 }
343
344 if (!pdb_copy_sam_account(for_cache, sam_acct)) {
345 TALLOC_FREE(for_cache);
346 return False;
347 }
348
349 user_sid = pdb_get_user_sid(for_cache);
350
351 memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
352 data_blob_const(user_sid, sizeof(*user_sid)),
353 &for_cache);
354
355 return True;
356 }
357
358 /**********************************************************************
359 **********************************************************************/
360
361 static bool guest_user_info( struct samu *user )
362 {
363 struct passwd *pwd;
364 NTSTATUS result;
365 const char *guestname = lp_guestaccount();
366
367 pwd = Get_Pwnam_alloc(talloc_tos(), guestname);
368 if (pwd == NULL) {
369 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
370 guestname));
371 return False;
372 }
373
374 result = samu_set_unix(user, pwd );
375
376 TALLOC_FREE( pwd );
377
378 return NT_STATUS_IS_OK( result );
379 }
380
381 /**
382 * @brief Get a sam user structure by the given username.
383 *
384 * This functions also checks if the account has been automatically locked out
385 * and unlocks it if a lockout duration time has been defined and the time has
386 * elapsed.
387 *
388 *
389 * @param[in] sam_acct The sam user structure to fill.
390 *
391 * @param[in] sid The user SDI to look up.
392 *
393 * @return True on success, false on error.
394 */
395 bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid)
396 {
397 struct pdb_methods *pdb = pdb_get_methods();
398 uint32_t rid;
399 void *cache_data;
400 bool ok = false;
401
402 /* hard code the Guest RID of 501 */
403
404 if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
405 return False;
406
407 if ( rid == DOMAIN_RID_GUEST ) {
408 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
409 return guest_user_info( sam_acct );
410 }
411
412 /* check the cache first */
413
414 cache_data = memcache_lookup_talloc(
415 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
416
417 if (cache_data != NULL) {
418 struct samu *cache_copy = talloc_get_type_abort(
419 cache_data, struct samu);
420
421 ok = pdb_copy_sam_account(sam_acct, cache_copy);
422 } else {
423 ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
424 }
425
426 if (!ok) {
427 return false;
428 }
429
430 ok = pdb_try_account_unlock(sam_acct);
431 if (!ok) {
432 DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n",
433 sam_acct->username));
434 }
435
436 return true;
437 }
438
439 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
440 TALLOC_CTX *tmp_ctx, const char *name,
441 uint32_t acb_info, uint32_t *rid)
442 {
443 struct samu *sam_pass;
444 NTSTATUS status;
445 struct passwd *pwd;
446
447 if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
448 return NT_STATUS_NO_MEMORY;
449 }
450
451 if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
452 char *add_script = NULL;
453 int add_ret;
454 fstring name2;
455
456 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
457 add_script = talloc_strdup(tmp_ctx,
458 lp_adduser_script());
459 } else {
460 add_script = talloc_strdup(tmp_ctx,
461 lp_addmachine_script());
462 }
463
464 if (!add_script || add_script[0] == '\0') {
465 DEBUG(3, ("Could not find user %s and no add script "
466 "defined\n", name));
467 return NT_STATUS_NO_SUCH_USER;
468 }
469
470 /* lowercase the username before creating the Unix account for
471 compatibility with previous Samba releases */
472 fstrcpy( name2, name );
473 strlower_m( name2 );
474 add_script = talloc_all_string_sub(tmp_ctx,
475 add_script,
476 "%u",
477 name2);
478 if (!add_script) {
479 return NT_STATUS_NO_MEMORY;
480 }
481 add_ret = smbrun(add_script,NULL);
482 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
483 add_script, add_ret));
484 if (add_ret == 0) {
485 smb_nscd_flush_user_cache();
486 }
487
488 flush_pwnam_cache();
489
490 pwd = Get_Pwnam_alloc(tmp_ctx, name);
491
492 if(pwd == NULL) {
493 DEBUG(3, ("Could not find user %s, add script did not work\n", name));
494 return NT_STATUS_NO_SUCH_USER;
495 }
496 }
497
498 /* we have a valid SID coming out of this call */
499
500 status = samu_alloc_rid_unix(methods, sam_pass, pwd);
501
502 TALLOC_FREE( pwd );
503
504 if (!NT_STATUS_IS_OK(status)) {
505 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
506 return status;
507 }
508
509 if (!sid_peek_check_rid(get_global_sam_sid(),
510 pdb_get_user_sid(sam_pass), rid)) {
511 DEBUG(0, ("Could not get RID of fresh user\n"));
512 return NT_STATUS_INTERNAL_ERROR;
513 }
514
515 /* Use the username case specified in the original request */
516
517 pdb_set_username( sam_pass, name, PDB_SET );
518
519 /* Disable the account on creation, it does not have a reasonable password yet. */
520
521 acb_info |= ACB_DISABLED;
522
523 pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
524
525 status = methods->add_sam_account(methods, sam_pass);
526
527 TALLOC_FREE(sam_pass);
528
529 return status;
530 }
531
532 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags,
533 uint32_t *rid)
534 {
535 struct pdb_methods *pdb = pdb_get_methods();
536 return pdb->create_user(pdb, mem_ctx, name, flags, rid);
537 }
538
539 /****************************************************************************
540 Delete a UNIX user on demand.
541 ****************************************************************************/
542
543 static int smb_delete_user(const char *unix_user)
544 {
545 char *del_script = NULL;
546 int ret;
547
548 /* safety check */
549
550 if ( strequal( unix_user, "root" ) ) {
551 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
552 return -1;
553 }
554
555 del_script = talloc_strdup(talloc_tos(), lp_deluser_script());
556 if (!del_script || !*del_script) {
557 return -1;
558 }
559 del_script = talloc_all_string_sub(talloc_tos(),
560 del_script,
561 "%u",
562 unix_user);
563 if (!del_script) {
564 return -1;
565 }
566 ret = smbrun(del_script,NULL);
567 flush_pwnam_cache();
568 if (ret == 0) {
569 smb_nscd_flush_user_cache();
570 }
571 DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
572
573 return ret;
574 }
575
576 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
577 TALLOC_CTX *mem_ctx,
578 struct samu *sam_acct)
579 {
580 NTSTATUS status;
581 fstring username;
582
583 status = methods->delete_sam_account(methods, sam_acct);
584 if (!NT_STATUS_IS_OK(status)) {
585 return status;
586 }
587
588 /*
589 * Now delete the unix side ....
590 * note: we don't check if the delete really happened as the script is
591 * not necessary present and maybe the sysadmin doesn't want to delete
592 * the unix side
593 */
594
595 /* always lower case the username before handing it off to
596 external scripts */
597
598 fstrcpy( username, pdb_get_username(sam_acct) );
599 strlower_m( username );
600
601 smb_delete_user( username );
602
603 return status;
604 }
605
606 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
607 {
608 struct pdb_methods *pdb = pdb_get_methods();
609 uid_t uid = -1;
610 NTSTATUS status;
611 const struct dom_sid *user_sid;
612 char *msg_data;
613
614 user_sid = pdb_get_user_sid(sam_acct);
615
616 /* sanity check to make sure we don't delete root */
617
618 if ( !sid_to_uid(user_sid, &uid ) ) {
619 return NT_STATUS_NO_SUCH_USER;
620 }
621
622 if ( uid == 0 ) {
623 return NT_STATUS_ACCESS_DENIED;
624 }
625
626 memcache_delete(NULL,
627 PDB_GETPWSID_CACHE,
628 data_blob_const(user_sid, sizeof(*user_sid)));
629
630 status = pdb->delete_user(pdb, mem_ctx, sam_acct);
631 if (!NT_STATUS_IS_OK(status)) {
632 return status;
633 }
634
635 msg_data = talloc_asprintf(mem_ctx, "USER %s",
636 pdb_get_username(sam_acct));
637 if (!msg_data) {
638 /* not fatal, and too late to rollback,
639 * just return */
640 return status;
641 }
642 message_send_all(server_messaging_context(),
643 ID_CACHE_DELETE,
644 msg_data,
645 strlen(msg_data) + 1,
646 NULL);
647
648 TALLOC_FREE(msg_data);
649 return status;
650 }
651
652 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
653 {
654 struct pdb_methods *pdb = pdb_get_methods();
655 return pdb->add_sam_account(pdb, sam_acct);
656 }
657
658 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
659 {
660 struct pdb_methods *pdb = pdb_get_methods();
661
662 memcache_flush(NULL, PDB_GETPWSID_CACHE);
663
664 return pdb->update_sam_account(pdb, sam_acct);
665 }
666
667 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
668 {
669 struct pdb_methods *pdb = pdb_get_methods();
670 const struct dom_sid *user_sid = pdb_get_user_sid(sam_acct);
671
672 memcache_delete(NULL,
673 PDB_GETPWSID_CACHE,
674 data_blob_const(user_sid, sizeof(*user_sid)));
675
676 return pdb->delete_sam_account(pdb, sam_acct);
677 }
678
679 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
680 {
681 struct pdb_methods *pdb = pdb_get_methods();
682 uid_t uid;
683 NTSTATUS status;
684
685 memcache_flush(NULL, PDB_GETPWSID_CACHE);
686
687 /* sanity check to make sure we don't rename root */
688
689 if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
690 return NT_STATUS_NO_SUCH_USER;
691 }
692
693 if ( uid == 0 ) {
694 return NT_STATUS_ACCESS_DENIED;
695 }
696
697 status = pdb->rename_sam_account(pdb, oldname, newname);
698
699 /* always flush the cache here just to be safe */
700 flush_pwnam_cache();
701
702 return status;
703 }
704
705 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
706 {
707 struct pdb_methods *pdb = pdb_get_methods();
708 return pdb->update_login_attempts(pdb, sam_acct, success);
709 }
710
711 bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid)
712 {
713 struct pdb_methods *pdb = pdb_get_methods();
714 return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
715 }
716
717 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
718 {
719 struct pdb_methods *pdb = pdb_get_methods();
720 return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
721 }
722
723 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
724 {
725 struct pdb_methods *pdb = pdb_get_methods();
726 return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
727 }
728
729 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
730 TALLOC_CTX *mem_ctx,
731 const char *name,
732 uint32_t *rid)
733 {
734 struct dom_sid group_sid;
735 struct group *grp;
736 fstring tmp;
737
738 grp = getgrnam(name);
739
740 if (grp == NULL) {
741 gid_t gid;
742
743 if (smb_create_group(name, &gid) != 0) {
744 return NT_STATUS_ACCESS_DENIED;
745 }
746
747 grp = getgrgid(gid);
748 }
749
750 if (grp == NULL) {
751 return NT_STATUS_ACCESS_DENIED;
752 }
753
754 if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
755 if (!pdb_new_rid(rid)) {
756 return NT_STATUS_ACCESS_DENIED;
757 }
758 } else {
759 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
760 }
761
762 sid_compose(&group_sid, get_global_sam_sid(), *rid);
763
764 return add_initial_entry(grp->gr_gid, sid_to_fstring(tmp, &group_sid),
765 SID_NAME_DOM_GRP, name, NULL);
766 }
767
768 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
769 uint32_t *rid)
770 {
771 struct pdb_methods *pdb = pdb_get_methods();
772 return pdb->create_dom_group(pdb, mem_ctx, name, rid);
773 }
774
775 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
776 TALLOC_CTX *mem_ctx,
777 uint32_t rid)
778 {
779 struct dom_sid group_sid;
780 GROUP_MAP *map;
781 NTSTATUS status;
782 struct group *grp;
783 const char *grp_name;
784
785 map = talloc_zero(mem_ctx, GROUP_MAP);
786 if (!map) {
787 return NT_STATUS_NO_MEMORY;
788 }
789
790 /* coverity */
791 map->gid = (gid_t) -1;
792
793 sid_compose(&group_sid, get_global_sam_sid(), rid);
794
795 if (!get_domain_group_from_sid(group_sid, map)) {
796 DEBUG(10, ("Could not find group for rid %d\n", rid));
797 return NT_STATUS_NO_SUCH_GROUP;
798 }
799
800 /* We need the group name for the smb_delete_group later on */
801
802 if (map->gid == (gid_t)-1) {
803 return NT_STATUS_NO_SUCH_GROUP;
804 }
805
806 grp = getgrgid(map->gid);
807 if (grp == NULL) {
808 return NT_STATUS_NO_SUCH_GROUP;
809 }
810
811 TALLOC_FREE(map);
812
813 /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
814
815 grp_name = talloc_strdup(mem_ctx, grp->gr_name);
816 if (grp_name == NULL) {
817 return NT_STATUS_NO_MEMORY;
818 }
819
820 status = pdb_delete_group_mapping_entry(group_sid);
821
822 if (!NT_STATUS_IS_OK(status)) {
823 return status;
824 }
825
826 /* Don't check the result of smb_delete_group */
827
828 smb_delete_group(grp_name);
829
830 return NT_STATUS_OK;
831 }
832
833 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
834 {
835 struct pdb_methods *pdb = pdb_get_methods();
836 return pdb->delete_dom_group(pdb, mem_ctx, rid);
837 }
838
839 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
840 {
841 struct pdb_methods *pdb = pdb_get_methods();
842 return pdb->add_group_mapping_entry(pdb, map);
843 }
844
845 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
846 {
847 struct pdb_methods *pdb = pdb_get_methods();
848 return pdb->update_group_mapping_entry(pdb, map);
849 }
850
851 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
852 {
853 struct pdb_methods *pdb = pdb_get_methods();
854 return pdb->delete_group_mapping_entry(pdb, sid);
855 }
856
857 bool pdb_enum_group_mapping(const struct dom_sid *sid,
858 enum lsa_SidType sid_name_use,
859 GROUP_MAP ***pp_rmap,
860 size_t *p_num_entries,
861 bool unix_only)
862 {
863 struct pdb_methods *pdb = pdb_get_methods();
864 return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
865 pp_rmap, p_num_entries, unix_only));
866 }
867
868 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
869 const struct dom_sid *sid,
870 uint32_t **pp_member_rids,
871 size_t *p_num_members)
872 {
873 struct pdb_methods *pdb = pdb_get_methods();
874 NTSTATUS result;
875
876 result = pdb->enum_group_members(pdb, mem_ctx,
877 sid, pp_member_rids, p_num_members);
878
879 /* special check for rid 513 */
880
881 if ( !NT_STATUS_IS_OK( result ) ) {
882 uint32_t rid;
883
884 sid_peek_rid( sid, &rid );
885
886 if ( rid == DOMAIN_RID_USERS ) {
887 *p_num_members = 0;
888 *pp_member_rids = NULL;
889
890 return NT_STATUS_OK;
891 }
892 }
893
894 return result;
895 }
896
897 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
898 struct dom_sid **pp_sids, gid_t **pp_gids,
899 uint32_t *p_num_groups)
900 {
901 struct pdb_methods *pdb = pdb_get_methods();
902 return pdb->enum_group_memberships(
903 pdb, mem_ctx, user,
904 pp_sids, pp_gids, p_num_groups);
905 }
906
907 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
908 TALLOC_CTX *mem_ctx,
909 struct samu *sampass)
910 {
911 struct group *grp;
912 gid_t gid;
913
914 if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
915 (grp = getgrgid(gid)) == NULL) {
916 return NT_STATUS_INVALID_PRIMARY_GROUP;
917 }
918
919 if (smb_set_primary_group(grp->gr_name,
920 pdb_get_username(sampass)) != 0) {
921 return NT_STATUS_ACCESS_DENIED;
922 }
923
924 return NT_STATUS_OK;
925 }
926
927 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
928 {
929 struct pdb_methods *pdb = pdb_get_methods();
930 return pdb->set_unix_primary_group(pdb, mem_ctx, user);
931 }
932
933 /*
934 * Helper function to see whether a user is in a group. We can't use
935 * user_in_group_sid here because this creates dependencies only smbd can
936 * fulfil.
937 */
938
939 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
940 const struct dom_sid *group_sid)
941 {
942 struct dom_sid *sids;
943 gid_t *gids;
944 uint32_t i, num_groups;
945
946 if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
947 &sids, &gids,
948 &num_groups))) {
949 return False;
950 }
951
952 for (i=0; i<num_groups; i++) {
953 if (dom_sid_equal(group_sid, &sids[i])) {
954 return True;
955 }
956 }
957 return False;
958 }
959
960 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
961 TALLOC_CTX *mem_ctx,
962 uint32_t group_rid,
963 uint32_t member_rid)
964 {
965 struct dom_sid group_sid, member_sid;
966 struct samu *account = NULL;
967 GROUP_MAP *map;
968 struct group *grp;
969 struct passwd *pwd;
970 const char *group_name;
971 uid_t uid;
972
973 map = talloc_zero(mem_ctx, GROUP_MAP);
974 if (!map) {
975 return NT_STATUS_NO_MEMORY;
976 }
977
978 /* coverity */
979 map->gid = (gid_t) -1;
980
981 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
982 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
983
984 if (!get_domain_group_from_sid(group_sid, map) ||
985 (map->gid == (gid_t)-1) ||
986 ((grp = getgrgid(map->gid)) == NULL)) {
987 return NT_STATUS_NO_SUCH_GROUP;
988 }
989
990 TALLOC_FREE(map);
991
992 group_name = talloc_strdup(mem_ctx, grp->gr_name);
993 if (group_name == NULL) {
994 return NT_STATUS_NO_MEMORY;
995 }
996
997 if ( !(account = samu_new( NULL )) ) {
998 return NT_STATUS_NO_MEMORY;
999 }
1000
1001 if (!pdb_getsampwsid(account, &member_sid) ||
1002 !sid_to_uid(&member_sid, &uid) ||
1003 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1004 return NT_STATUS_NO_SUCH_USER;
1005 }
1006
1007 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1008 return NT_STATUS_MEMBER_IN_GROUP;
1009 }
1010
1011 /*
1012 * ok, the group exist, the user exist, the user is not in the group,
1013 * we can (finally) add it to the group !
1014 */
1015
1016 smb_add_user_group(group_name, pwd->pw_name);
1017
1018 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1019 return NT_STATUS_ACCESS_DENIED;
1020 }
1021
1022 return NT_STATUS_OK;
1023 }
1024
1025 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1026 uint32_t member_rid)
1027 {
1028 struct pdb_methods *pdb = pdb_get_methods();
1029 return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
1030 }
1031
1032 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
1033 TALLOC_CTX *mem_ctx,
1034 uint32_t group_rid,
1035 uint32_t member_rid)
1036 {
1037 struct dom_sid group_sid, member_sid;
1038 struct samu *account = NULL;
1039 GROUP_MAP *map;
1040 struct group *grp;
1041 struct passwd *pwd;
1042 const char *group_name;
1043 uid_t uid;
1044
1045 map = talloc_zero(mem_ctx, GROUP_MAP);
1046 if (!map) {
1047 return NT_STATUS_NO_MEMORY;
1048 }
1049
1050 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1051 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1052
1053 if (!get_domain_group_from_sid(group_sid, map) ||
1054 (map->gid == (gid_t)-1) ||
1055 ((grp = getgrgid(map->gid)) == NULL)) {
1056 return NT_STATUS_NO_SUCH_GROUP;
1057 }
1058
1059 TALLOC_FREE(map);
1060
1061 group_name = talloc_strdup(mem_ctx, grp->gr_name);
1062 if (group_name == NULL) {
1063 return NT_STATUS_NO_MEMORY;
1064 }
1065
1066 if ( !(account = samu_new( NULL )) ) {
1067 return NT_STATUS_NO_MEMORY;
1068 }
1069
1070 if (!pdb_getsampwsid(account, &member_sid) ||
1071 !sid_to_uid(&member_sid, &uid) ||
1072 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1073 return NT_STATUS_NO_SUCH_USER;
1074 }
1075
1076 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1077 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1078 }
1079
1080 /*
1081 * ok, the group exist, the user exist, the user is in the group,
1082 * we can (finally) delete it from the group!
1083 */
1084
1085 smb_delete_user_group(group_name, pwd->pw_name);
1086
1087 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1088 return NT_STATUS_ACCESS_DENIED;
1089 }
1090
1091 return NT_STATUS_OK;
1092 }
1093
1094 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1095 uint32_t member_rid)
1096 {
1097 struct pdb_methods *pdb = pdb_get_methods();
1098 return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1099 }
1100
1101 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1102 {
1103 struct pdb_methods *pdb = pdb_get_methods();
1104 return pdb->create_alias(pdb, name, rid);
1105 }
1106
1107 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1108 {
1109 struct pdb_methods *pdb = pdb_get_methods();
1110 return pdb->delete_alias(pdb, sid);
1111 }
1112
1113 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1114 {
1115 struct pdb_methods *pdb = pdb_get_methods();
1116 return pdb->get_aliasinfo(pdb, sid, info);
1117 }
1118
1119 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1120 {
1121 struct pdb_methods *pdb = pdb_get_methods();
1122 return pdb->set_aliasinfo(pdb, sid, info);
1123 }
1124
1125 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1126 {
1127 struct pdb_methods *pdb = pdb_get_methods();
1128 return pdb->add_aliasmem(pdb, alias, member);
1129 }
1130
1131 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1132 {
1133 struct pdb_methods *pdb = pdb_get_methods();
1134 return pdb->del_aliasmem(pdb, alias, member);
1135 }
1136
1137 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1138 struct dom_sid **pp_members, size_t *p_num_members)
1139 {
1140 struct pdb_methods *pdb = pdb_get_methods();
1141 return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1142 p_num_members);
1143 }
1144
1145 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1146 const struct dom_sid *domain_sid,
1147 const struct dom_sid *members, size_t num_members,
1148 uint32_t **pp_alias_rids,
1149 size_t *p_num_alias_rids)
1150 {
1151 struct pdb_methods *pdb = pdb_get_methods();
1152 return pdb->enum_alias_memberships(pdb, mem_ctx,
1153 domain_sid,
1154 members, num_members,
1155 pp_alias_rids,
1156 p_num_alias_rids);
1157 }
1158
1159 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1160 int num_rids,
1161 uint32_t *rids,
1162 const char **names,
1163 enum lsa_SidType *attrs)
1164 {
1165 struct pdb_methods *pdb = pdb_get_methods();
1166 return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1167 }
1168
1169 /*
1170 * NOTE: pdb_lookup_names is currently (2007-01-12) not used anywhere
1171 * in the samba code.
1172 * Unlike _lsa_lookup_sids and _samr_lookup_rids, which eventually
1173 * also ask pdb_lookup_rids, thus looking up a bunch of rids at a time,
1174 * the pdb_ calls _lsa_lookup_names and _samr_lookup_names come
1175 * down to are pdb_getsampwnam and pdb_getgrnam instead of
1176 * pdb_lookup_names.
1177 * But in principle, it the call belongs to the API and might get
1178 * used in this context some day.
1179 */
1180 #if 0
1181 NTSTATUS pdb_lookup_names(const struct dom_sid *domain_sid,
1182 int num_names,
1183 const char **names,
1184 uint32_t *rids,
1185 enum lsa_SidType *attrs)
1186 {
1187 struct pdb_methods *pdb = pdb_get_methods();
1188 return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
1189 }
1190 #endif
1191
1192 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1193 {
1194 struct pdb_methods *pdb = pdb_get_methods();
1195 NTSTATUS status;
1196
1197 become_root();
1198 status = pdb->get_account_policy(pdb, type, value);
1199 unbecome_root();
1200
1201 return NT_STATUS_IS_OK(status);
1202 }
1203
1204 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1205 {
1206 struct pdb_methods *pdb = pdb_get_methods();
1207 NTSTATUS status;
1208
1209 become_root();
1210 status = pdb->set_account_policy(pdb, type, value);
1211 unbecome_root();
1212
1213 return NT_STATUS_IS_OK(status);
1214 }
1215
1216 bool pdb_get_seq_num(time_t *seq_num)
1217 {
1218 struct pdb_methods *pdb = pdb_get_methods();
1219 return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1220 }
1221
1222 bool pdb_uid_to_sid(uid_t uid, struct dom_sid *sid)
1223 {
1224 struct pdb_methods *pdb = pdb_get_methods();
1225 return pdb->uid_to_sid(pdb, uid, sid);
1226 }
1227
1228 bool pdb_gid_to_sid(gid_t gid, struct dom_sid *sid)
1229 {
1230 struct pdb_methods *pdb = pdb_get_methods();
1231 return pdb->gid_to_sid(pdb, gid, sid);
1232 }
1233
1234 bool pdb_sid_to_id(const struct dom_sid *sid, uid_t *uid, gid_t *gid,
1235 enum lsa_SidType *type)
1236 {
1237 struct pdb_methods *pdb = pdb_get_methods();
1238 return pdb->sid_to_id(pdb, sid, uid, gid, type);
1239 }
1240
1241 uint32_t pdb_capabilities(void)
1242 {
1243 struct pdb_methods *pdb = pdb_get_methods();
1244 return pdb->capabilities(pdb);
1245 }
1246
1247 /********************************************************************
1248 Allocate a new RID from the passdb backend. Verify that it is free
1249 by calling lookup_global_sam_rid() to verify that the RID is not
1250 in use. This handles servers that have existing users or groups
1251 with add RIDs (assigned from previous algorithmic mappings)
1252 ********************************************************************/
1253
1254 bool pdb_new_rid(uint32_t *rid)
1255 {
1256 struct pdb_methods *pdb = pdb_get_methods();
1257 const char *name = NULL;
1258 enum lsa_SidType type;
1259 uint32_t allocated_rid = 0;
1260 int i;
1261 TALLOC_CTX *ctx;
1262
1263 if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1264 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1265 "are active\n"));
1266 return False;
1267 }
1268
1269 if (algorithmic_rid_base() != BASE_RID) {
1270 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1271 "without algorithmic RIDs is chosen.\n"));
1272 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1273 "add', set the maximum used RID\n"));
1274 DEBUGADD(0, ("and remove the parameter\n"));
1275 return False;
1276 }
1277
1278 if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1279 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1280 return False;
1281 }
1282
1283 /* Attempt to get an unused RID (max tires is 250...yes that it is
1284 and arbitrary number I pulkled out of my head). -- jerry */
1285
1286 for ( i=0; allocated_rid==0 && i<250; i++ ) {
1287 /* get a new RID */
1288
1289 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1290 return False;
1291 }
1292
1293 /* validate that the RID is not in use */
1294
1295 if (lookup_global_sam_rid(ctx, allocated_rid, &name, &type, NULL, NULL)) {
1296 allocated_rid = 0;
1297 }
1298 }
1299
1300 TALLOC_FREE( ctx );
1301
1302 if ( allocated_rid == 0 ) {
1303 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1304 return False;
1305 }
1306
1307 *rid = allocated_rid;
1308
1309 return True;
1310 }
1311
1312 /***************************************************************
1313 Initialize the static context (at smbd startup etc).
1314
1315 If uninitialised, context will auto-init on first use.
1316 ***************************************************************/
1317
1318 bool initialize_password_db(bool reload, struct tevent_context *tevent_ctx)
1319 {
1320 pdb_tevent_ctx = tevent_ctx;
1321 return (pdb_get_methods_reload(reload) != NULL);
1322 }
1323
1324
1325 /***************************************************************************
1326 Default implementations of some functions.
1327 ****************************************************************************/
1328
1329 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1330 {
1331 return NT_STATUS_NO_SUCH_USER;
1332 }
1333
1334 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1335 {
1336 return NT_STATUS_NO_SUCH_USER;
1337 }
1338
1339 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1340 {
1341 return NT_STATUS_NOT_IMPLEMENTED;
1342 }
1343
1344 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1345 {
1346 return NT_STATUS_NOT_IMPLEMENTED;
1347 }
1348
1349 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1350 {
1351 return NT_STATUS_NOT_IMPLEMENTED;
1352 }
1353
1354 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1355 {
1356 return NT_STATUS_NOT_IMPLEMENTED;
1357 }
1358
1359 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1360 {
1361 /* Only the pdb_nds backend implements this, by
1362 * default just return ok. */
1363 return NT_STATUS_OK;
1364 }
1365
1366 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1367 {
1368 return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1369 }
1370
1371 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1372 {
1373 return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1374 }
1375
1376 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1377 {
1378 *seq_num = time(NULL);
1379 return NT_STATUS_OK;
1380 }
1381
1382 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1383 struct dom_sid *sid)
1384 {
1385 struct samu *sampw = NULL;
1386 struct passwd *unix_pw;
1387 bool ret;
1388
1389 unix_pw = sys_getpwuid( uid );
1390
1391 if ( !unix_pw ) {
1392 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1393 "%lu\n", (unsigned long)uid));
1394 return False;
1395 }
1396
1397 if ( !(sampw = samu_new( NULL )) ) {
1398 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1399 return False;
1400 }
1401
1402 become_root();
1403 ret = NT_STATUS_IS_OK(
1404 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1405 unbecome_root();
1406
1407 if (!ret) {
1408 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1409 "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1410 TALLOC_FREE(sampw);
1411 return False;
1412 }
1413
1414 sid_copy(sid, pdb_get_user_sid(sampw));
1415
1416 TALLOC_FREE(sampw);
1417
1418 return True;
1419 }
1420
1421 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1422 struct dom_sid *sid)
1423 {
1424 GROUP_MAP *map;
1425
1426 map = talloc_zero(NULL, GROUP_MAP);
1427 if (!map) {
1428 return false;
1429 }
1430
1431 if (!NT_STATUS_IS_OK(methods->getgrgid(methods, map, gid))) {
1432 TALLOC_FREE(map);
1433 return false;
1434 }
1435
1436 sid_copy(sid, &map->sid);
1437 TALLOC_FREE(map);
1438 return true;
1439 }
1440
1441 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1442 const struct dom_sid *sid,
1443 uid_t *uid, gid_t *gid,
1444 enum lsa_SidType *type)
1445 {
1446 TALLOC_CTX *mem_ctx;
1447 bool ret = False;
1448 const char *name;
1449 uint32_t rid;
1450
1451 *uid = -1;
1452 *gid = -1;
1453
1454 mem_ctx = talloc_new(NULL);
1455
1456 if (mem_ctx == NULL) {
1457 DEBUG(0, ("talloc_new failed\n"));
1458 return False;
1459 }
1460
1461 if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1462 /* Here we might have users as well as groups and aliases */
1463 ret = lookup_global_sam_rid(mem_ctx, rid, &name, type, uid, gid);
1464 goto done;
1465 }
1466
1467 /* check for "Unix User" */
1468
1469 if ( sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid) ) {
1470 *uid = rid;
1471 *type = SID_NAME_USER;
1472 ret = True;
1473 goto done;
1474 }
1475
1476 /* check for "Unix Group" */
1477
1478 if ( sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid) ) {
1479 *gid = rid;
1480 *type = SID_NAME_ALIAS;
1481 ret = True;
1482 goto done;
1483 }
1484
1485 /* BUILTIN */
1486
1487 if (sid_check_is_in_builtin(sid) ||
1488 sid_check_is_in_wellknown_domain(sid)) {
1489 /* Here we only have aliases */
1490 GROUP_MAP *map;
1491
1492 map = talloc_zero(mem_ctx, GROUP_MAP);
1493 if (!map) {
1494 ret = false;
1495 goto done;
1496 }
1497
1498 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, map, *sid))) {
1499 DEBUG(10, ("Could not find map for sid %s\n",
1500 sid_string_dbg(sid)));
1501 goto done;
1502 }
1503 if ((map->sid_name_use != SID_NAME_ALIAS) &&
1504 (map->sid_name_use != SID_NAME_WKN_GRP)) {
1505 DEBUG(10, ("Map for sid %s is a %s, expected an "
1506 "alias\n", sid_string_dbg(sid),
1507 sid_type_lookup(map->sid_name_use)));
1508 goto done;
1509 }
1510
1511 *gid = map->gid;
1512 *type = SID_NAME_ALIAS;
1513 ret = True;
1514 goto done;
1515 }
1516
1517 DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1518 sid_string_dbg(sid)));
1519
1520 done:
1521
1522 TALLOC_FREE(mem_ctx);
1523 return ret;
1524 }
1525
1526 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num)
1527 {
1528 struct group *grp;
1529 char **gr;
1530 struct passwd *pwd;
1531 bool winbind_env;
1532 bool ret = False;
1533
1534 *pp_uids = NULL;
1535 *p_num = 0;
1536
1537 /* We only look at our own sam, so don't care about imported stuff */
1538 winbind_env = winbind_env_set();
1539 (void)winbind_off();
1540
1541 if ((grp = getgrgid(gid)) == NULL) {
1542 /* allow winbindd lookups, but only if they weren't already disabled */
1543 goto done;
1544 }
1545
1546 /* Primary group members */
1547 setpwent();
1548 while ((pwd = getpwent()) != NULL) {
1549 if (pwd->pw_gid == gid) {
1550 if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1551 pp_uids, p_num)) {
1552 goto done;
1553 }
1554 }
1555 }
1556 endpwent();
1557
1558 /* Secondary group members */
1559 for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1560 struct passwd *pw = getpwnam(*gr);
1561
1562 if (pw == NULL)
1563 continue;
1564 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1565 goto done;
1566 }
1567 }
1568
1569 ret = True;
1570
1571 done:
1572
1573 /* allow winbindd lookups, but only if they weren't already disabled */
1574 if (!winbind_env) {
1575 (void)winbind_on();
1576 }
1577
1578 return ret;
1579 }
1580
1581 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1582 TALLOC_CTX *mem_ctx,
1583 const struct dom_sid *group,
1584 uint32_t **pp_member_rids,
1585 size_t *p_num_members)
1586 {
1587 gid_t gid;
1588 uid_t *uids;
1589 uint32_t i, num_uids;
1590
1591 *pp_member_rids = NULL;
1592 *p_num_members = 0;
1593
1594 if (!sid_to_gid(group, &gid))
1595 return NT_STATUS_NO_SUCH_GROUP;
1596
1597 if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1598 return NT_STATUS_NO_SUCH_GROUP;
1599
1600 if (num_uids == 0)
1601 return NT_STATUS_OK;
1602
1603 *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids);
1604
1605 for (i=0; i<num_uids; i++) {
1606 struct dom_sid sid;
1607
1608 uid_to_sid(&sid, uids[i]);
1609
1610 if (!sid_check_is_in_our_domain(&sid)) {
1611 DEBUG(5, ("Inconsistent SAM -- group member uid not "
1612 "in our domain\n"));
1613 continue;
1614 }
1615
1616 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1617 *p_num_members += 1;
1618 }
1619
1620 return NT_STATUS_OK;
1621 }
1622
1623 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1624 TALLOC_CTX *mem_ctx,
1625 struct samu *user,
1626 struct dom_sid **pp_sids,
1627 gid_t **pp_gids,
1628 uint32_t *p_num_groups)
1629 {
1630 size_t i;
1631 gid_t gid;
1632 struct passwd *pw;
1633 const char *username = pdb_get_username(user);
1634
1635
1636 /* Ignore the primary group SID. Honor the real Unix primary group.
1637 The primary group SID is only of real use to Windows clients */
1638
1639 if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
1640 return NT_STATUS_NO_SUCH_USER;
1641 }
1642
1643 gid = pw->pw_gid;
1644
1645 TALLOC_FREE( pw );
1646
1647 if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1648 return NT_STATUS_NO_SUCH_USER;
1649 }
1650
1651 if (*p_num_groups == 0) {
1652 smb_panic("primary group missing");
1653 }
1654
1655 *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups);
1656
1657 if (*pp_sids == NULL) {
1658 TALLOC_FREE(*pp_gids);
1659 return NT_STATUS_NO_MEMORY;
1660 }
1661
1662 for (i=0; i<*p_num_groups; i++) {
1663 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1664 }
1665
1666 return NT_STATUS_OK;
1667 }
1668
1669 /*******************************************************************
1670 Look up a rid in the SAM we're responsible for (i.e. passdb)
1671 ********************************************************************/
1672
1673 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1674 const char **name,
1675 enum lsa_SidType *psid_name_use,
1676 uid_t *uid, gid_t *gid)
1677 {
1678 struct samu *sam_account = NULL;
1679 GROUP_MAP *map = NULL;
1680 bool ret;
1681 struct dom_sid sid;
1682
1683 *psid_name_use = SID_NAME_UNKNOWN;
1684
1685 DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1686 (unsigned int)rid));
1687
1688 sid_compose(&sid, get_global_sam_sid(), rid);
1689
1690 /* see if the passdb can help us with the name of the user */
1691
1692 if ( !(sam_account = samu_new( NULL )) ) {
1693 return False;
1694 }
1695
1696 map = talloc_zero(mem_ctx, GROUP_MAP);
1697 if (!map) {
1698 return false;
1699 }
1700
1701 /* BEING ROOT BLOCK */
1702 become_root();
1703 ret = pdb_getsampwsid(sam_account, &sid);
1704 if (!ret) {
1705 TALLOC_FREE(sam_account);
1706 ret = pdb_getgrsid(map, sid);
1707 }
1708 unbecome_root();
1709 /* END BECOME_ROOT BLOCK */
1710
1711 if (sam_account || !ret) {
1712 TALLOC_FREE(map);
1713 }
1714
1715 if (sam_account) {
1716 struct passwd *pw;
1717
1718 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1719 if (!*name) {
1720 TALLOC_FREE(sam_account);
1721 return False;
1722 }
1723
1724 *psid_name_use = SID_NAME_USER;
1725
1726 TALLOC_FREE(sam_account);
1727
1728 if (uid == NULL) {
1729 return True;
1730 }
1731
1732 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1733 if (pw == NULL) {
1734 return False;
1735 }
1736 *uid = pw->pw_uid;
1737 TALLOC_FREE(pw);
1738 return True;
1739
1740 } else if (map && (map->gid != (gid_t)-1)) {
1741
1742 /* do not resolve SIDs to a name unless there is a valid
1743 gid associated with it */
1744
1745 *name = talloc_steal(mem_ctx, map->nt_name);
1746 *psid_name_use = map->sid_name_use;
1747
1748 if (gid) {
1749 *gid = map->gid;
1750 }
1751
1752 TALLOC_FREE(map);
1753 return True;
1754 }
1755
1756 TALLOC_FREE(map);
1757
1758 /* Windows will always map RID 513 to something. On a non-domain
1759 controller, this gets mapped to SERVER\None. */
1760
1761 if (uid || gid) {
1762 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1763 return False;
1764 }
1765
1766 if ( rid == DOMAIN_RID_USERS ) {
1767 *name = talloc_strdup(mem_ctx, "None" );
1768 *psid_name_use = SID_NAME_DOM_GRP;
1769
1770 return True;
1771 }
1772
1773 return False;
1774 }
1775
1776 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1777 const struct dom_sid *domain_sid,
1778 int num_rids,
1779 uint32_t *rids,
1780 const char **names,
1781 enum lsa_SidType *attrs)
1782 {
1783 int i;
1784 NTSTATUS result;
1785 bool have_mapped = False;
1786 bool have_unmapped = False;
1787
1788 if (sid_check_is_builtin(domain_sid)) {
1789
1790 for (i=0; i<num_rids; i++) {
1791 const char *name;
1792
1793 if (lookup_builtin_rid(names, rids[i], &name)) {
1794 attrs[i] = SID_NAME_ALIAS;
1795 names[i] = name;
1796 DEBUG(5,("lookup_rids: %s:%d\n",
1797 names[i], attrs[i]));
1798 have_mapped = True;
1799 } else {
1800 have_unmapped = True;
1801 attrs[i] = SID_NAME_UNKNOWN;
1802 }
1803 }
1804 goto done;
1805 }
1806
1807 /* Should not happen, but better check once too many */
1808 if (!sid_check_is_domain(domain_sid)) {
1809 return NT_STATUS_INVALID_HANDLE;
1810 }
1811
1812 for (i = 0; i < num_rids; i++) {
1813 const char *name;
1814
1815 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1816 NULL, NULL)) {
1817 if (name == NULL) {
1818 return NT_STATUS_NO_MEMORY;
1819 }
1820 names[i] = name;
1821 DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1822 have_mapped = True;
1823 } else {
1824 have_unmapped = True;
1825 attrs[i] = SID_NAME_UNKNOWN;
1826 }
1827 }
1828
1829 done:
1830
1831 result = NT_STATUS_NONE_MAPPED;
1832
1833 if (have_mapped)
1834 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1835
1836 return result;
1837 }
1838
1839 #if 0
1840 static NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1841 const struct dom_sid *domain_sid,
1842 int num_names,
1843 const char **names,
1844 uint32_t *rids,
1845 enum lsa_SidType *attrs)
1846 {
1847 int i;
1848 NTSTATUS result;
1849 bool have_mapped = False;
1850 bool have_unmapped = False;
1851
1852 if (sid_check_is_builtin(domain_sid)) {
1853
1854 for (i=0; i<num_names; i++) {
1855 uint32_t rid;
1856
1857 if (lookup_builtin_name(names[i], &rid)) {
1858 attrs[i] = SID_NAME_ALIAS;
1859 rids[i] = rid;
1860 DEBUG(5,("lookup_rids: %s:%d\n",
1861 names[i], attrs[i]));
1862 have_mapped = True;
1863 } else {
1864 have_unmapped = True;
1865 attrs[i] = SID_NAME_UNKNOWN;
1866 }
1867 }
1868 goto done;
1869 }
1870
1871 /* Should not happen, but better check once too many */
1872 if (!sid_check_is_domain(domain_sid)) {
1873 return NT_STATUS_INVALID_HANDLE;
1874 }
1875
1876 for (i = 0; i < num_names; i++) {
1877 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1878 DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1879 rids[i], attrs[i]));
1880 have_mapped = True;
1881 } else {
1882 have_unmapped = True;
1883 attrs[i] = SID_NAME_UNKNOWN;
1884 }
1885 }
1886
1887 done:
1888
1889 result = NT_STATUS_NONE_MAPPED;
1890
1891 if (have_mapped)
1892 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1893
1894 return result;
1895 }
1896 #endif
1897
1898 static int pdb_search_destructor(struct pdb_search *search)
1899 {
1900 if ((!search->search_ended) && (search->search_end != NULL)) {
1901 search->search_end(search);
1902 }
1903 return 0;
1904 }
1905
1906 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1907 enum pdb_search_type type)
1908 {
1909 struct pdb_search *result;
1910
1911 result = talloc(mem_ctx, struct pdb_search);
1912 if (result == NULL) {
1913 DEBUG(0, ("talloc failed\n"));
1914 return NULL;
1915 }
1916
1917 result->type = type;
1918 result->cache = NULL;
1919 result->num_entries = 0;
1920 result->cache_size = 0;
1921 result->search_ended = False;
1922 result->search_end = NULL;
1923
1924 /* Segfault appropriately if not initialized */
1925 result->next_entry = NULL;
1926 result->search_end = NULL;
1927
1928 talloc_set_destructor(result, pdb_search_destructor);
1929
1930 return result;
1931 }
1932
1933 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1934 uint16_t acct_flags,
1935 const char *account_name,
1936 const char *fullname,
1937 const char *description,
1938 struct samr_displayentry *entry)
1939 {
1940 entry->rid = rid;
1941 entry->acct_flags = acct_flags;
1942
1943 if (account_name != NULL)
1944 entry->account_name = talloc_strdup(mem_ctx, account_name);
1945 else
1946 entry->account_name = "";
1947
1948 if (fullname != NULL)
1949 entry->fullname = talloc_strdup(mem_ctx, fullname);
1950 else
1951 entry->fullname = "";
1952
1953 if (description != NULL)
1954 entry->description = talloc_strdup(mem_ctx, description);
1955 else
1956 entry->description = "";
1957 }
1958
1959 struct group_search {
1960 GROUP_MAP **groups;
1961 size_t num_groups, current_group;
1962 };
1963
1964 static bool next_entry_groups(struct pdb_search *s,
1965 struct samr_displayentry *entry)
1966 {
1967 struct group_search *state = (struct group_search *)s->private_data;
1968 uint32_t rid;
1969 GROUP_MAP *map;
1970
1971 if (state->current_group == state->num_groups)
1972 return False;
1973
1974 map = state->groups[state->current_group];
1975
1976 sid_peek_rid(&map->sid, &rid);
1977
1978 fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
1979
1980 state->current_group += 1;
1981 return True;
1982 }
1983
1984 static void search_end_groups(struct pdb_search *search)
1985 {
1986 struct group_search *state =
1987 (struct group_search *)search->private_data;
1988 TALLOC_FREE(state->groups);
1989 }
1990
1991 static bool pdb_search_grouptype(struct pdb_methods *methods,
1992 struct pdb_search *search,
1993 const struct dom_sid *sid, enum lsa_SidType type)
1994 {
1995 struct group_search *state;
1996
1997 state = talloc_zero(search, struct group_search);
1998 if (state == NULL) {
1999 DEBUG(0, ("talloc failed\n"));
2000 return False;
2001 }
2002
2003 if (!NT_STATUS_IS_OK(methods->enum_group_mapping(methods, sid, type,
2004 &state->groups, &state->num_groups,
2005 True))) {
2006 DEBUG(0, ("Could not enum groups\n"));
2007 return False;
2008 }
2009
2010 state->current_group = 0;
2011 search->private_data = state;
2012 search->next_entry = next_entry_groups;
2013 search->search_end = search_end_groups;
2014 return True;
2015 }
2016
2017 static bool pdb_default_search_groups(struct pdb_methods *methods,
2018 struct pdb_search *search)
2019 {
2020 return pdb_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
2021 }
2022
2023 static bool pdb_default_search_aliases(struct pdb_methods *methods,
2024 struct pdb_search *search,
2025 const struct dom_sid *sid)
2026 {
2027
2028 return pdb_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
2029 }
2030
2031 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
2032 uint32_t idx)
2033 {
2034 if (idx < search->num_entries)
2035 return &search->cache[idx];
2036
2037 if (search->search_ended)
2038 return NULL;
2039
2040 while (idx >= search->num_entries) {
2041 struct samr_displayentry entry;
2042
2043 if (!search->next_entry(search, &entry)) {
2044 search->search_end(search);
2045 search->search_ended = True;
2046 break;
2047 }
2048
2049 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
2050 entry, &search->cache, &search->num_entries,
2051 &search->cache_size);
2052 }
2053
2054 return (search->num_entries > idx) ? &search->cache[idx] : NULL;
2055 }
2056
2057 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
2058 {
2059 struct pdb_methods *pdb = pdb_get_methods();
2060 struct pdb_search *result;
2061
2062 result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
2063 if (result == NULL) {
2064 return NULL;
2065 }
2066
2067 if (!pdb->search_users(pdb, result, acct_flags)) {
2068 TALLOC_FREE(result);
2069 return NULL;
2070 }
2071 return result;
2072 }
2073
2074 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
2075 {
2076 struct pdb_methods *pdb = pdb_get_methods();
2077 struct pdb_search *result;
2078
2079 result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
2080 if (result == NULL) {
2081 return NULL;
2082 }
2083
2084 if (!pdb->search_groups(pdb, result)) {
2085 TALLOC_FREE(result);
2086 return NULL;
2087 }
2088 return result;
2089 }
2090
2091 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
2092 {
2093 struct pdb_methods *pdb = pdb_get_methods();
2094 struct pdb_search *result;
2095
2096 if (pdb == NULL) return NULL;
2097
2098 result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
2099 if (result == NULL) {
2100 return NULL;
2101 }
2102
2103 if (!pdb->search_aliases(pdb, result, sid)) {
2104 TALLOC_FREE(result);
2105 return NULL;
2106 }
2107 return result;
2108 }
2109
2110 uint32_t pdb_search_entries(struct pdb_search *search,
2111 uint32_t start_idx, uint32_t max_entries,
2112 struct samr_displayentry **result)
2113 {
2114 struct samr_displayentry *end_entry;
2115 uint32_t end_idx = start_idx+max_entries-1;
2116
2117 /* The first entry needs to be searched after the last. Otherwise the
2118 * first entry might have moved due to a realloc during the search for
2119 * the last entry. */
2120
2121 end_entry = pdb_search_getentry(search, end_idx);
2122 *result = pdb_search_getentry(search, start_idx);
2123
2124 if (end_entry != NULL)
2125 return max_entries;
2126
2127 if (start_idx >= search->num_entries)
2128 return 0;
2129
2130 return search->num_entries - start_idx;
2131 }
2132
2133 /*******************************************************************
2134 trustdom methods
2135 *******************************************************************/
2136
2137 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2138 time_t *pass_last_set_time)
2139 {
2140 struct pdb_methods *pdb = pdb_get_methods();
2141 return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2142 pass_last_set_time);
2143 }
2144
2145 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2146 const struct dom_sid *sid)
2147 {
2148 struct pdb_methods *pdb = pdb_get_methods();
2149 return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2150 }
2151
2152 bool pdb_del_trusteddom_pw(const char *domain)
2153 {
2154 struct pdb_methods *pdb = pdb_get_methods();
2155 return pdb->del_trusteddom_pw(pdb, domain);
2156 }
2157
2158 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2159 struct trustdom_info ***domains)
2160 {
2161 struct pdb_methods *pdb = pdb_get_methods();
2162 return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2163 }
2164
2165 /*******************************************************************
2166 the defaults for trustdom methods:
2167 these simply call the original passdb/secrets.c actions,
2168 to be replaced by pdb_ldap.
2169 *******************************************************************/
2170
2171 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2172 const char *domain,
2173 char** pwd,
2174 struct dom_sid *sid,
2175 time_t *pass_last_set_time)
2176 {
2177 return secrets_fetch_trusted_domain_password(domain, pwd,
2178 sid, pass_last_set_time);
2179
2180 }
2181
2182 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2183 const char* domain,
2184 const char* pwd,
2185 const struct dom_sid *sid)
2186 {
2187 return secrets_store_trusted_domain_password(domain, pwd, sid);
2188 }
2189
2190 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2191 const char *domain)
2192 {
2193 return trusted_domain_password_delete(domain);
2194 }
2195
2196 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2197 TALLOC_CTX *mem_ctx,
2198 uint32_t *num_domains,
2199 struct trustdom_info ***domains)
2200 {
2201 return secrets_trusted_domains(mem_ctx, num_domains, domains);
2202 }
2203
2204 /*******************************************************************
2205 trusted_domain methods
2206 *******************************************************************/
2207
2208 NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain,
2209 struct pdb_trusted_domain **td)
2210 {
2211 struct pdb_methods *pdb = pdb_get_methods();
2212 return pdb->get_trusted_domain(pdb, mem_ctx, domain, td);
2213 }
2214
2215 NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid,
2216 struct pdb_trusted_domain **td)
2217 {
2218 struct pdb_methods *pdb = pdb_get_methods();
2219 return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td);
2220 }
2221
2222 NTSTATUS pdb_set_trusted_domain(const char* domain,
2223 const struct pdb_trusted_domain *td)
2224 {
2225 struct pdb_methods *pdb = pdb_get_methods();
2226 return pdb->set_trusted_domain(pdb, domain, td);
2227 }
2228
2229 NTSTATUS pdb_del_trusted_domain(const char *domain)
2230 {
2231 struct pdb_methods *pdb = pdb_get_methods();
2232 return pdb->del_trusted_domain(pdb, domain);
2233 }
2234
2235 NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2236 struct pdb_trusted_domain ***domains)
2237 {
2238 struct pdb_methods *pdb = pdb_get_methods();
2239 return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains);
2240 }
2241
2242 static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods,
2243 TALLOC_CTX *mem_ctx,
2244 const char *domain,
2245 struct pdb_trusted_domain **td)
2246 {
2247 struct trustAuthInOutBlob taiob;
2248 struct AuthenticationInformation aia;
2249 struct pdb_trusted_domain *tdom;
2250 enum ndr_err_code ndr_err;
2251 time_t last_set_time;
2252 char *pwd;
2253 bool ok;
2254
2255 tdom = talloc(mem_ctx, struct pdb_trusted_domain);
2256 if (!tdom) {
2257 return NT_STATUS_NO_MEMORY;
2258 }
2259
2260 tdom->domain_name = talloc_strdup(tdom, domain);
2261 tdom->netbios_name = talloc_strdup(tdom, domain);
2262 if (!tdom->domain_name || !tdom->netbios_name) {
2263 talloc_free(tdom);
2264 return NT_STATUS_NO_MEMORY;
2265 }
2266
2267 tdom->trust_auth_incoming = data_blob_null;
2268
2269 ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier,
2270 &last_set_time);
2271 if (!ok) {
2272 talloc_free(tdom);
2273 return NT_STATUS_UNSUCCESSFUL;
2274 }
2275
2276 ZERO_STRUCT(taiob);
2277 ZERO_STRUCT(aia);
2278 taiob.count = 1;
2279 taiob.current.count = 1;
2280 taiob.current.array = &aia;
2281 unix_to_nt_time(&aia.LastUpdateTime, last_set_time);
2282 aia.AuthType = TRUST_AUTH_TYPE_CLEAR;
2283 aia.AuthInfo.clear.password = (uint8_t *) pwd;
2284 aia.AuthInfo.clear.size = strlen(pwd);
2285 taiob.previous.count = 0;
2286 taiob.previous.array = NULL;
2287
2288 ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing,
2289 tdom, &taiob,
2290 (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
2291 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2292 talloc_free(tdom);
2293 return NT_STATUS_UNSUCCESSFUL;
2294 }
2295
2296 tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND;
2297 tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL;
2298 tdom->trust_attributes = 0;
2299 tdom->trust_forest_trust_info = data_blob_null;
2300
2301 *td = tdom;
2302 return NT_STATUS_OK;
2303 }
2304
2305 static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods,
2306 TALLOC_CTX *mem_ctx,
2307 struct dom_sid *sid,
2308 struct pdb_trusted_domain **td)
2309 {
2310 return NT_STATUS_NOT_IMPLEMENTED;
2311 }
2312
2313 #define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0)
2314
2315 static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods,
2316 const char* domain,
2317 const struct pdb_trusted_domain *td)
2318 {
2319 struct trustAuthInOutBlob taiob;
2320 struct AuthenticationInformation *aia;
2321 enum ndr_err_code ndr_err;
2322 char *pwd;
2323 bool ok;
2324
2325 if (td->trust_attributes != 0 ||
2326 td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL ||
2327 td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND ||
2328 !IS_NULL_DATA_BLOB(td->trust_auth_incoming) ||
2329 !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) {
2330 return NT_STATUS_NOT_IMPLEMENTED;
2331 }
2332
2333 ZERO_STRUCT(taiob);
2334 ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(),
2335 &taiob,
2336 (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2337 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2338 return NT_STATUS_UNSUCCESSFUL;
2339 }
2340
2341 aia = (struct AuthenticationInformation *) taiob.current.array;
2342
2343 if (taiob.count != 1 || taiob.current.count != 1 ||
2344 taiob.previous.count != 0 ||
2345 aia->AuthType != TRUST_AUTH_TYPE_CLEAR) {
2346 return NT_STATUS_NOT_IMPLEMENTED;
2347 }
2348
2349 pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password,
2350 aia->AuthInfo.clear.size);
2351 if (!pwd) {
2352 return NT_STATUS_NO_MEMORY;
2353 }
2354
2355 ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier);
2356 if (!ok) {
2357 return NT_STATUS_UNSUCCESSFUL;
2358 }
2359
2360 return NT_STATUS_OK;
2361 }
2362
2363 static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods,
2364 const char *domain)
2365 {
2366 return NT_STATUS_NOT_IMPLEMENTED;
2367 }
2368
2369 static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods,
2370 TALLOC_CTX *mem_ctx,
2371 uint32_t *num_domains,
2372 struct pdb_trusted_domain ***domains)
2373 {
2374 return NT_STATUS_NOT_IMPLEMENTED;
2375 }
2376
2377 static struct pdb_domain_info *pdb_default_get_domain_info(
2378 struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2379 {
2380 return NULL;
2381 }
2382
2383 /*******************************************************************
2384 secret methods
2385 *******************************************************************/
2386
2387 NTSTATUS pdb_get_secret(TALLOC_CTX *mem_ctx,
2388 const char *secret_name,
2389 DATA_BLOB *secret_current,
2390 NTTIME *secret_current_lastchange,
2391 DATA_BLOB *secret_old,
2392 NTTIME *secret_old_lastchange,
2393 struct security_descriptor **sd)
2394 {
2395 struct pdb_methods *pdb = pdb_get_methods();
2396 return pdb->get_secret(pdb, mem_ctx, secret_name,
2397 secret_current, secret_current_lastchange,
2398 secret_old, secret_old_lastchange,
2399 sd);
2400 }
2401
2402 NTSTATUS pdb_set_secret(const char *secret_name,
2403 DATA_BLOB *secret_current,
2404 DATA_BLOB *secret_old,
2405 struct security_descriptor *sd)
2406 {
2407 struct pdb_methods *pdb = pdb_get_methods();
2408 return pdb->set_secret(pdb, secret_name,
2409 secret_current,
2410 secret_old,
2411 sd);
2412 }
2413
2414 NTSTATUS pdb_delete_secret(const char *secret_name)
2415 {
2416 struct pdb_methods *pdb = pdb_get_methods();
2417 return pdb->delete_secret(pdb, secret_name);
2418 }
2419
2420 static NTSTATUS pdb_default_get_secret(struct pdb_methods *methods,
2421 TALLOC_CTX *mem_ctx,
2422 const char *secret_name,
2423 DATA_BLOB *secret_current,
2424 NTTIME *secret_current_lastchange,
2425 DATA_BLOB *secret_old,
2426 NTTIME *secret_old_lastchange,
2427 struct security_descriptor **sd)
2428 {
2429 return lsa_secret_get(mem_ctx, secret_name,
2430 secret_current,
2431 secret_current_lastchange,
2432 secret_old,
2433 secret_old_lastchange,
2434 sd);
2435 }
2436
2437 static NTSTATUS pdb_default_set_secret(struct pdb_methods *methods,
2438 const char *secret_name,
2439 DATA_BLOB *secret_current,
2440 DATA_BLOB *secret_old,
2441 struct security_descriptor *sd)
2442 {
2443 return lsa_secret_set(secret_name,
2444 secret_current,
2445 secret_old,
2446 sd);
2447 }
2448
2449 static NTSTATUS pdb_default_delete_secret(struct pdb_methods *methods,
2450 const char *secret_name)
2451 {
2452 return lsa_secret_delete(secret_name);
2453 }
2454
2455 /*******************************************************************
2456 Create a pdb_methods structure and initialize it with the default
2457 operations. In this way a passdb module can simply implement
2458 the functionality it cares about. However, normally this is done
2459 in groups of related functions.
2460 *******************************************************************/
2461
2462 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2463 {
2464 /* allocate memory for the structure as its own talloc CTX */
2465
2466 *methods = talloc_zero(NULL, struct pdb_methods);
2467 if (*methods == NULL) {
2468 return NT_STATUS_NO_MEMORY;
2469 }
2470
2471 (*methods)->get_domain_info = pdb_default_get_domain_info;
2472 (*methods)->getsampwnam = pdb_default_getsampwnam;
2473 (*methods)->getsampwsid = pdb_default_getsampwsid;
2474 (*methods)->create_user = pdb_default_create_user;
2475 (*methods)->delete_user = pdb_default_delete_user;
2476 (*methods)->add_sam_account = pdb_default_add_sam_account;
2477 (*methods)->update_sam_account = pdb_default_update_sam_account;
2478 (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2479 (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2480 (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2481
2482 (*methods)->getgrsid = pdb_default_getgrsid;
2483 (*methods)->getgrgid = pdb_default_getgrgid;
2484 (*methods)->getgrnam = pdb_default_getgrnam;
2485 (*methods)->create_dom_group = pdb_default_create_dom_group;
2486 (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2487 (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2488 (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2489 (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2490 (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2491 (*methods)->enum_group_members = pdb_default_enum_group_members;
2492 (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2493 (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2494 (*methods)->add_groupmem = pdb_default_add_groupmem;
2495 (*methods)->del_groupmem = pdb_default_del_groupmem;
2496 (*methods)->create_alias = pdb_default_create_alias;
2497 (*methods)->delete_alias = pdb_default_delete_alias;
2498 (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2499 (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2500 (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2501 (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2502 (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2503 (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2504 (*methods)->lookup_rids = pdb_default_lookup_rids;
2505 (*methods)->get_account_policy = pdb_default_get_account_policy;
2506 (*methods)->set_account_policy = pdb_default_set_account_policy;
2507 (*methods)->get_seq_num = pdb_default_get_seq_num;
2508 (*methods)->uid_to_sid = pdb_default_uid_to_sid;
2509 (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2510 (*methods)->sid_to_id = pdb_default_sid_to_id;
2511
2512 (*methods)->search_groups = pdb_default_search_groups;
2513 (*methods)->search_aliases = pdb_default_search_aliases;
2514
2515 (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2516 (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2517 (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2518 (*methods)->enum_trusteddoms = pdb_default_enum_trusteddoms;
2519
2520 (*methods)->get_trusted_domain = pdb_default_get_trusted_domain;
2521 (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid;
2522 (*methods)->set_trusted_domain = pdb_default_set_trusted_domain;
2523 (*methods)->del_trusted_domain = pdb_default_del_trusted_domain;
2524 (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains;
2525
2526 (*methods)->get_secret = pdb_default_get_secret;
2527 (*methods)->set_secret = pdb_default_set_secret;
2528 (*methods)->delete_secret = pdb_default_delete_secret;
2529
2530 return NT_STATUS_OK;
2531 }
reg import