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s3-passdb: Only delete 1 entry from memcache.
[Samba/gebeck_regimport.git] / source3 / passdb / pdb_interface.c
blob7a0279e1fb7279ff2cb0f1798b65c6d1722310a7
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 union unid_t *unix_id);
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 event_context *pdb_event_ctx;
120
121 struct event_context *pdb_get_event_context(void)
122 {
123 return pdb_event_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 /* coverity */
786 map.gid = (gid_t) -1;
787
788 sid_compose(&group_sid, get_global_sam_sid(), rid);
789
790 if (!get_domain_group_from_sid(group_sid, &map)) {
791 DEBUG(10, ("Could not find group for rid %d\n", rid));
792 return NT_STATUS_NO_SUCH_GROUP;
793 }
794
795 /* We need the group name for the smb_delete_group later on */
796
797 if (map.gid == (gid_t)-1) {
798 return NT_STATUS_NO_SUCH_GROUP;
799 }
800
801 grp = getgrgid(map.gid);
802 if (grp == NULL) {
803 return NT_STATUS_NO_SUCH_GROUP;
804 }
805
806 /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
807
808 grp_name = talloc_strdup(mem_ctx, grp->gr_name);
809 if (grp_name == NULL) {
810 return NT_STATUS_NO_MEMORY;
811 }
812
813 status = pdb_delete_group_mapping_entry(group_sid);
814
815 if (!NT_STATUS_IS_OK(status)) {
816 return status;
817 }
818
819 /* Don't check the result of smb_delete_group */
820
821 smb_delete_group(grp_name);
822
823 return NT_STATUS_OK;
824 }
825
826 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
827 {
828 struct pdb_methods *pdb = pdb_get_methods();
829 return pdb->delete_dom_group(pdb, mem_ctx, rid);
830 }
831
832 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
833 {
834 struct pdb_methods *pdb = pdb_get_methods();
835 return pdb->add_group_mapping_entry(pdb, map);
836 }
837
838 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
839 {
840 struct pdb_methods *pdb = pdb_get_methods();
841 return pdb->update_group_mapping_entry(pdb, map);
842 }
843
844 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
845 {
846 struct pdb_methods *pdb = pdb_get_methods();
847 return pdb->delete_group_mapping_entry(pdb, sid);
848 }
849
850 bool pdb_enum_group_mapping(const struct dom_sid *sid, enum lsa_SidType sid_name_use, GROUP_MAP **pp_rmap,
851 size_t *p_num_entries, bool unix_only)
852 {
853 struct pdb_methods *pdb = pdb_get_methods();
854 return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
855 pp_rmap, p_num_entries, unix_only));
856 }
857
858 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
859 const struct dom_sid *sid,
860 uint32_t **pp_member_rids,
861 size_t *p_num_members)
862 {
863 struct pdb_methods *pdb = pdb_get_methods();
864 NTSTATUS result;
865
866 result = pdb->enum_group_members(pdb, mem_ctx,
867 sid, pp_member_rids, p_num_members);
868
869 /* special check for rid 513 */
870
871 if ( !NT_STATUS_IS_OK( result ) ) {
872 uint32_t rid;
873
874 sid_peek_rid( sid, &rid );
875
876 if ( rid == DOMAIN_RID_USERS ) {
877 *p_num_members = 0;
878 *pp_member_rids = NULL;
879
880 return NT_STATUS_OK;
881 }
882 }
883
884 return result;
885 }
886
887 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
888 struct dom_sid **pp_sids, gid_t **pp_gids,
889 uint32_t *p_num_groups)
890 {
891 struct pdb_methods *pdb = pdb_get_methods();
892 return pdb->enum_group_memberships(
893 pdb, mem_ctx, user,
894 pp_sids, pp_gids, p_num_groups);
895 }
896
897 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
898 TALLOC_CTX *mem_ctx,
899 struct samu *sampass)
900 {
901 struct group *grp;
902 gid_t gid;
903
904 if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
905 (grp = getgrgid(gid)) == NULL) {
906 return NT_STATUS_INVALID_PRIMARY_GROUP;
907 }
908
909 if (smb_set_primary_group(grp->gr_name,
910 pdb_get_username(sampass)) != 0) {
911 return NT_STATUS_ACCESS_DENIED;
912 }
913
914 return NT_STATUS_OK;
915 }
916
917 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
918 {
919 struct pdb_methods *pdb = pdb_get_methods();
920 return pdb->set_unix_primary_group(pdb, mem_ctx, user);
921 }
922
923 /*
924 * Helper function to see whether a user is in a group. We can't use
925 * user_in_group_sid here because this creates dependencies only smbd can
926 * fulfil.
927 */
928
929 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
930 const struct dom_sid *group_sid)
931 {
932 struct dom_sid *sids;
933 gid_t *gids;
934 uint32_t i, num_groups;
935
936 if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
937 &sids, &gids,
938 &num_groups))) {
939 return False;
940 }
941
942 for (i=0; i<num_groups; i++) {
943 if (dom_sid_equal(group_sid, &sids[i])) {
944 return True;
945 }
946 }
947 return False;
948 }
949
950 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
951 TALLOC_CTX *mem_ctx,
952 uint32_t group_rid,
953 uint32_t member_rid)
954 {
955 struct dom_sid group_sid, member_sid;
956 struct samu *account = NULL;
957 GROUP_MAP map;
958 struct group *grp;
959 struct passwd *pwd;
960 const char *group_name;
961 uid_t uid;
962
963 /* coverity */
964 map.gid = (gid_t) -1;
965
966 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
967 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
968
969 if (!get_domain_group_from_sid(group_sid, &map) ||
970 (map.gid == (gid_t)-1) ||
971 ((grp = getgrgid(map.gid)) == NULL)) {
972 return NT_STATUS_NO_SUCH_GROUP;
973 }
974
975 group_name = talloc_strdup(mem_ctx, grp->gr_name);
976 if (group_name == NULL) {
977 return NT_STATUS_NO_MEMORY;
978 }
979
980 if ( !(account = samu_new( NULL )) ) {
981 return NT_STATUS_NO_MEMORY;
982 }
983
984 if (!pdb_getsampwsid(account, &member_sid) ||
985 !sid_to_uid(&member_sid, &uid) ||
986 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
987 return NT_STATUS_NO_SUCH_USER;
988 }
989
990 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
991 return NT_STATUS_MEMBER_IN_GROUP;
992 }
993
994 /*
995 * ok, the group exist, the user exist, the user is not in the group,
996 * we can (finally) add it to the group !
997 */
998
999 smb_add_user_group(group_name, pwd->pw_name);
1000
1001 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1002 return NT_STATUS_ACCESS_DENIED;
1003 }
1004
1005 return NT_STATUS_OK;
1006 }
1007
1008 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1009 uint32_t member_rid)
1010 {
1011 struct pdb_methods *pdb = pdb_get_methods();
1012 return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
1013 }
1014
1015 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
1016 TALLOC_CTX *mem_ctx,
1017 uint32_t group_rid,
1018 uint32_t member_rid)
1019 {
1020 struct dom_sid group_sid, member_sid;
1021 struct samu *account = NULL;
1022 GROUP_MAP map;
1023 struct group *grp;
1024 struct passwd *pwd;
1025 const char *group_name;
1026 uid_t uid;
1027
1028 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1029 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1030
1031 if (!get_domain_group_from_sid(group_sid, &map) ||
1032 (map.gid == (gid_t)-1) ||
1033 ((grp = getgrgid(map.gid)) == NULL)) {
1034 return NT_STATUS_NO_SUCH_GROUP;
1035 }
1036
1037 group_name = talloc_strdup(mem_ctx, grp->gr_name);
1038 if (group_name == NULL) {
1039 return NT_STATUS_NO_MEMORY;
1040 }
1041
1042 if ( !(account = samu_new( NULL )) ) {
1043 return NT_STATUS_NO_MEMORY;
1044 }
1045
1046 if (!pdb_getsampwsid(account, &member_sid) ||
1047 !sid_to_uid(&member_sid, &uid) ||
1048 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1049 return NT_STATUS_NO_SUCH_USER;
1050 }
1051
1052 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1053 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1054 }
1055
1056 /*
1057 * ok, the group exist, the user exist, the user is in the group,
1058 * we can (finally) delete it from the group!
1059 */
1060
1061 smb_delete_user_group(group_name, pwd->pw_name);
1062
1063 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1064 return NT_STATUS_ACCESS_DENIED;
1065 }
1066
1067 return NT_STATUS_OK;
1068 }
1069
1070 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1071 uint32_t member_rid)
1072 {
1073 struct pdb_methods *pdb = pdb_get_methods();
1074 return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1075 }
1076
1077 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1078 {
1079 struct pdb_methods *pdb = pdb_get_methods();
1080 return pdb->create_alias(pdb, name, rid);
1081 }
1082
1083 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1084 {
1085 struct pdb_methods *pdb = pdb_get_methods();
1086 return pdb->delete_alias(pdb, sid);
1087 }
1088
1089 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1090 {
1091 struct pdb_methods *pdb = pdb_get_methods();
1092 return pdb->get_aliasinfo(pdb, sid, info);
1093 }
1094
1095 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1096 {
1097 struct pdb_methods *pdb = pdb_get_methods();
1098 return pdb->set_aliasinfo(pdb, sid, info);
1099 }
1100
1101 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1102 {
1103 struct pdb_methods *pdb = pdb_get_methods();
1104 return pdb->add_aliasmem(pdb, alias, member);
1105 }
1106
1107 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1108 {
1109 struct pdb_methods *pdb = pdb_get_methods();
1110 return pdb->del_aliasmem(pdb, alias, member);
1111 }
1112
1113 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1114 struct dom_sid **pp_members, size_t *p_num_members)
1115 {
1116 struct pdb_methods *pdb = pdb_get_methods();
1117 return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1118 p_num_members);
1119 }
1120
1121 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1122 const struct dom_sid *domain_sid,
1123 const struct dom_sid *members, size_t num_members,
1124 uint32_t **pp_alias_rids,
1125 size_t *p_num_alias_rids)
1126 {
1127 struct pdb_methods *pdb = pdb_get_methods();
1128 return pdb->enum_alias_memberships(pdb, mem_ctx,
1129 domain_sid,
1130 members, num_members,
1131 pp_alias_rids,
1132 p_num_alias_rids);
1133 }
1134
1135 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1136 int num_rids,
1137 uint32_t *rids,
1138 const char **names,
1139 enum lsa_SidType *attrs)
1140 {
1141 struct pdb_methods *pdb = pdb_get_methods();
1142 return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1143 }
1144
1145 /*
1146 * NOTE: pdb_lookup_names is currently (2007-01-12) not used anywhere
1147 * in the samba code.
1148 * Unlike _lsa_lookup_sids and _samr_lookup_rids, which eventually
1149 * also ask pdb_lookup_rids, thus looking up a bunch of rids at a time,
1150 * the pdb_ calls _lsa_lookup_names and _samr_lookup_names come
1151 * down to are pdb_getsampwnam and pdb_getgrnam instead of
1152 * pdb_lookup_names.
1153 * But in principle, it the call belongs to the API and might get
1154 * used in this context some day.
1155 */
1156 #if 0
1157 NTSTATUS pdb_lookup_names(const struct dom_sid *domain_sid,
1158 int num_names,
1159 const char **names,
1160 uint32_t *rids,
1161 enum lsa_SidType *attrs)
1162 {
1163 struct pdb_methods *pdb = pdb_get_methods();
1164 return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
1165 }
1166 #endif
1167
1168 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1169 {
1170 struct pdb_methods *pdb = pdb_get_methods();
1171 NTSTATUS status;
1172
1173 become_root();
1174 status = pdb->get_account_policy(pdb, type, value);
1175 unbecome_root();
1176
1177 return NT_STATUS_IS_OK(status);
1178 }
1179
1180 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1181 {
1182 struct pdb_methods *pdb = pdb_get_methods();
1183 NTSTATUS status;
1184
1185 become_root();
1186 status = pdb->set_account_policy(pdb, type, value);
1187 unbecome_root();
1188
1189 return NT_STATUS_IS_OK(status);
1190 }
1191
1192 bool pdb_get_seq_num(time_t *seq_num)
1193 {
1194 struct pdb_methods *pdb = pdb_get_methods();
1195 return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1196 }
1197
1198 bool pdb_uid_to_sid(uid_t uid, struct dom_sid *sid)
1199 {
1200 struct pdb_methods *pdb = pdb_get_methods();
1201 return pdb->uid_to_sid(pdb, uid, sid);
1202 }
1203
1204 bool pdb_gid_to_sid(gid_t gid, struct dom_sid *sid)
1205 {
1206 struct pdb_methods *pdb = pdb_get_methods();
1207 return pdb->gid_to_sid(pdb, gid, sid);
1208 }
1209
1210 bool pdb_sid_to_id(const struct dom_sid *sid, union unid_t *id,
1211 enum lsa_SidType *type)
1212 {
1213 struct pdb_methods *pdb = pdb_get_methods();
1214 return pdb->sid_to_id(pdb, sid, id, type);
1215 }
1216
1217 uint32_t pdb_capabilities(void)
1218 {
1219 struct pdb_methods *pdb = pdb_get_methods();
1220 return pdb->capabilities(pdb);
1221 }
1222
1223 /********************************************************************
1224 Allocate a new RID from the passdb backend. Verify that it is free
1225 by calling lookup_global_sam_rid() to verify that the RID is not
1226 in use. This handles servers that have existing users or groups
1227 with add RIDs (assigned from previous algorithmic mappings)
1228 ********************************************************************/
1229
1230 bool pdb_new_rid(uint32_t *rid)
1231 {
1232 struct pdb_methods *pdb = pdb_get_methods();
1233 const char *name = NULL;
1234 enum lsa_SidType type;
1235 uint32_t allocated_rid = 0;
1236 int i;
1237 TALLOC_CTX *ctx;
1238
1239 if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1240 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1241 "are active\n"));
1242 return False;
1243 }
1244
1245 if (algorithmic_rid_base() != BASE_RID) {
1246 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1247 "without algorithmic RIDs is chosen.\n"));
1248 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1249 "add', set the maximum used RID\n"));
1250 DEBUGADD(0, ("and remove the parameter\n"));
1251 return False;
1252 }
1253
1254 if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1255 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1256 return False;
1257 }
1258
1259 /* Attempt to get an unused RID (max tires is 250...yes that it is
1260 and arbitrary number I pulkled out of my head). -- jerry */
1261
1262 for ( i=0; allocated_rid==0 && i<250; i++ ) {
1263 /* get a new RID */
1264
1265 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1266 return False;
1267 }
1268
1269 /* validate that the RID is not in use */
1270
1271 if ( lookup_global_sam_rid( ctx, allocated_rid, &name, &type, NULL ) ) {
1272 allocated_rid = 0;
1273 }
1274 }
1275
1276 TALLOC_FREE( ctx );
1277
1278 if ( allocated_rid == 0 ) {
1279 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1280 return False;
1281 }
1282
1283 *rid = allocated_rid;
1284
1285 return True;
1286 }
1287
1288 /***************************************************************
1289 Initialize the static context (at smbd startup etc).
1290
1291 If uninitialised, context will auto-init on first use.
1292 ***************************************************************/
1293
1294 bool initialize_password_db(bool reload, struct event_context *event_ctx)
1295 {
1296 pdb_event_ctx = event_ctx;
1297 return (pdb_get_methods_reload(reload) != NULL);
1298 }
1299
1300
1301 /***************************************************************************
1302 Default implementations of some functions.
1303 ****************************************************************************/
1304
1305 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1306 {
1307 return NT_STATUS_NO_SUCH_USER;
1308 }
1309
1310 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1311 {
1312 return NT_STATUS_NO_SUCH_USER;
1313 }
1314
1315 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1316 {
1317 return NT_STATUS_NOT_IMPLEMENTED;
1318 }
1319
1320 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1321 {
1322 return NT_STATUS_NOT_IMPLEMENTED;
1323 }
1324
1325 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1326 {
1327 return NT_STATUS_NOT_IMPLEMENTED;
1328 }
1329
1330 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1331 {
1332 return NT_STATUS_NOT_IMPLEMENTED;
1333 }
1334
1335 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1336 {
1337 /* Only the pdb_nds backend implements this, by
1338 * default just return ok. */
1339 return NT_STATUS_OK;
1340 }
1341
1342 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1343 {
1344 return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1345 }
1346
1347 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1348 {
1349 return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1350 }
1351
1352 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1353 {
1354 *seq_num = time(NULL);
1355 return NT_STATUS_OK;
1356 }
1357
1358 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1359 struct dom_sid *sid)
1360 {
1361 struct samu *sampw = NULL;
1362 struct passwd *unix_pw;
1363 bool ret;
1364
1365 unix_pw = sys_getpwuid( uid );
1366
1367 if ( !unix_pw ) {
1368 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1369 "%lu\n", (unsigned long)uid));
1370 return False;
1371 }
1372
1373 if ( !(sampw = samu_new( NULL )) ) {
1374 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1375 return False;
1376 }
1377
1378 become_root();
1379 ret = NT_STATUS_IS_OK(
1380 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1381 unbecome_root();
1382
1383 if (!ret) {
1384 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1385 "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1386 TALLOC_FREE(sampw);
1387 return False;
1388 }
1389
1390 sid_copy(sid, pdb_get_user_sid(sampw));
1391
1392 TALLOC_FREE(sampw);
1393
1394 return True;
1395 }
1396
1397 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1398 struct dom_sid *sid)
1399 {
1400 GROUP_MAP map;
1401
1402 if (!NT_STATUS_IS_OK(methods->getgrgid(methods, &map, gid))) {
1403 return False;
1404 }
1405
1406 sid_copy(sid, &map.sid);
1407 return True;
1408 }
1409
1410 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1411 const struct dom_sid *sid,
1412 union unid_t *id, enum lsa_SidType *type)
1413 {
1414 TALLOC_CTX *mem_ctx;
1415 bool ret = False;
1416 const char *name;
1417 uint32_t rid;
1418
1419 mem_ctx = talloc_new(NULL);
1420
1421 if (mem_ctx == NULL) {
1422 DEBUG(0, ("talloc_new failed\n"));
1423 return False;
1424 }
1425
1426 if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1427 /* Here we might have users as well as groups and aliases */
1428 ret = lookup_global_sam_rid(mem_ctx, rid, &name, type, id);
1429 goto done;
1430 }
1431
1432 /* check for "Unix User" */
1433
1434 if ( sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid) ) {
1435 id->uid = rid;
1436 *type = SID_NAME_USER;
1437 ret = True;
1438 goto done;
1439 }
1440
1441 /* check for "Unix Group" */
1442
1443 if ( sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid) ) {
1444 id->gid = rid;
1445 *type = SID_NAME_ALIAS;
1446 ret = True;
1447 goto done;
1448 }
1449
1450 /* BUILTIN */
1451
1452 if (sid_check_is_in_builtin(sid) ||
1453 sid_check_is_in_wellknown_domain(sid)) {
1454 /* Here we only have aliases */
1455 GROUP_MAP map;
1456 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, &map, *sid))) {
1457 DEBUG(10, ("Could not find map for sid %s\n",
1458 sid_string_dbg(sid)));
1459 goto done;
1460 }
1461 if ((map.sid_name_use != SID_NAME_ALIAS) &&
1462 (map.sid_name_use != SID_NAME_WKN_GRP)) {
1463 DEBUG(10, ("Map for sid %s is a %s, expected an "
1464 "alias\n", sid_string_dbg(sid),
1465 sid_type_lookup(map.sid_name_use)));
1466 goto done;
1467 }
1468
1469 id->gid = map.gid;
1470 *type = SID_NAME_ALIAS;
1471 ret = True;
1472 goto done;
1473 }
1474
1475 DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1476 sid_string_dbg(sid)));
1477
1478 done:
1479
1480 TALLOC_FREE(mem_ctx);
1481 return ret;
1482 }
1483
1484 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num)
1485 {
1486 struct group *grp;
1487 char **gr;
1488 struct passwd *pwd;
1489 bool winbind_env;
1490 bool ret = False;
1491
1492 *pp_uids = NULL;
1493 *p_num = 0;
1494
1495 /* We only look at our own sam, so don't care about imported stuff */
1496 winbind_env = winbind_env_set();
1497 (void)winbind_off();
1498
1499 if ((grp = getgrgid(gid)) == NULL) {
1500 /* allow winbindd lookups, but only if they weren't already disabled */
1501 goto done;
1502 }
1503
1504 /* Primary group members */
1505 setpwent();
1506 while ((pwd = getpwent()) != NULL) {
1507 if (pwd->pw_gid == gid) {
1508 if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1509 pp_uids, p_num)) {
1510 goto done;
1511 }
1512 }
1513 }
1514 endpwent();
1515
1516 /* Secondary group members */
1517 for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1518 struct passwd *pw = getpwnam(*gr);
1519
1520 if (pw == NULL)
1521 continue;
1522 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1523 goto done;
1524 }
1525 }
1526
1527 ret = True;
1528
1529 done:
1530
1531 /* allow winbindd lookups, but only if they weren't already disabled */
1532 if (!winbind_env) {
1533 (void)winbind_on();
1534 }
1535
1536 return ret;
1537 }
1538
1539 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1540 TALLOC_CTX *mem_ctx,
1541 const struct dom_sid *group,
1542 uint32_t **pp_member_rids,
1543 size_t *p_num_members)
1544 {
1545 gid_t gid;
1546 uid_t *uids;
1547 uint32_t i, num_uids;
1548
1549 *pp_member_rids = NULL;
1550 *p_num_members = 0;
1551
1552 if (!sid_to_gid(group, &gid))
1553 return NT_STATUS_NO_SUCH_GROUP;
1554
1555 if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1556 return NT_STATUS_NO_SUCH_GROUP;
1557
1558 if (num_uids == 0)
1559 return NT_STATUS_OK;
1560
1561 *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids);
1562
1563 for (i=0; i<num_uids; i++) {
1564 struct dom_sid sid;
1565
1566 uid_to_sid(&sid, uids[i]);
1567
1568 if (!sid_check_is_in_our_domain(&sid)) {
1569 DEBUG(5, ("Inconsistent SAM -- group member uid not "
1570 "in our domain\n"));
1571 continue;
1572 }
1573
1574 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1575 *p_num_members += 1;
1576 }
1577
1578 return NT_STATUS_OK;
1579 }
1580
1581 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1582 TALLOC_CTX *mem_ctx,
1583 struct samu *user,
1584 struct dom_sid **pp_sids,
1585 gid_t **pp_gids,
1586 uint32_t *p_num_groups)
1587 {
1588 size_t i;
1589 gid_t gid;
1590 struct passwd *pw;
1591 const char *username = pdb_get_username(user);
1592
1593
1594 /* Ignore the primary group SID. Honor the real Unix primary group.
1595 The primary group SID is only of real use to Windows clients */
1596
1597 if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
1598 return NT_STATUS_NO_SUCH_USER;
1599 }
1600
1601 gid = pw->pw_gid;
1602
1603 TALLOC_FREE( pw );
1604
1605 if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1606 return NT_STATUS_NO_SUCH_USER;
1607 }
1608
1609 if (*p_num_groups == 0) {
1610 smb_panic("primary group missing");
1611 }
1612
1613 *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups);
1614
1615 if (*pp_sids == NULL) {
1616 TALLOC_FREE(*pp_gids);
1617 return NT_STATUS_NO_MEMORY;
1618 }
1619
1620 for (i=0; i<*p_num_groups; i++) {
1621 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1622 }
1623
1624 return NT_STATUS_OK;
1625 }
1626
1627 /*******************************************************************
1628 Look up a rid in the SAM we're responsible for (i.e. passdb)
1629 ********************************************************************/
1630
1631 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1632 const char **name,
1633 enum lsa_SidType *psid_name_use,
1634 union unid_t *unix_id)
1635 {
1636 struct samu *sam_account = NULL;
1637 GROUP_MAP map;
1638 bool ret;
1639 struct dom_sid sid;
1640
1641 *psid_name_use = SID_NAME_UNKNOWN;
1642
1643 DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1644 (unsigned int)rid));
1645
1646 sid_compose(&sid, get_global_sam_sid(), rid);
1647
1648 /* see if the passdb can help us with the name of the user */
1649
1650 if ( !(sam_account = samu_new( NULL )) ) {
1651 return False;
1652 }
1653
1654 /* BEING ROOT BLOCK */
1655 become_root();
1656 if (pdb_getsampwsid(sam_account, &sid)) {
1657 struct passwd *pw;
1658
1659 unbecome_root(); /* -----> EXIT BECOME_ROOT() */
1660 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1661 if (!*name) {
1662 TALLOC_FREE(sam_account);
1663 return False;
1664 }
1665
1666 *psid_name_use = SID_NAME_USER;
1667
1668 TALLOC_FREE(sam_account);
1669
1670 if (unix_id == NULL) {
1671 return True;
1672 }
1673
1674 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1675 if (pw == NULL) {
1676 return False;
1677 }
1678 unix_id->uid = pw->pw_uid;
1679 TALLOC_FREE(pw);
1680 return True;
1681 }
1682 TALLOC_FREE(sam_account);
1683
1684 ret = pdb_getgrsid(&map, sid);
1685 unbecome_root();
1686 /* END BECOME_ROOT BLOCK */
1687
1688 /* do not resolve SIDs to a name unless there is a valid
1689 gid associated with it */
1690
1691 if ( ret && (map.gid != (gid_t)-1) ) {
1692 *name = talloc_strdup(mem_ctx, map.nt_name);
1693 *psid_name_use = map.sid_name_use;
1694
1695 if ( unix_id ) {
1696 unix_id->gid = map.gid;
1697 }
1698
1699 return True;
1700 }
1701
1702 /* Windows will always map RID 513 to something. On a non-domain
1703 controller, this gets mapped to SERVER\None. */
1704
1705 if ( unix_id ) {
1706 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1707 return False;
1708 }
1709
1710 if ( rid == DOMAIN_RID_USERS ) {
1711 *name = talloc_strdup(mem_ctx, "None" );
1712 *psid_name_use = SID_NAME_DOM_GRP;
1713
1714 return True;
1715 }
1716
1717 return False;
1718 }
1719
1720 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1721 const struct dom_sid *domain_sid,
1722 int num_rids,
1723 uint32_t *rids,
1724 const char **names,
1725 enum lsa_SidType *attrs)
1726 {
1727 int i;
1728 NTSTATUS result;
1729 bool have_mapped = False;
1730 bool have_unmapped = False;
1731
1732 if (sid_check_is_builtin(domain_sid)) {
1733
1734 for (i=0; i<num_rids; i++) {
1735 const char *name;
1736
1737 if (lookup_builtin_rid(names, rids[i], &name)) {
1738 attrs[i] = SID_NAME_ALIAS;
1739 names[i] = name;
1740 DEBUG(5,("lookup_rids: %s:%d\n",
1741 names[i], attrs[i]));
1742 have_mapped = True;
1743 } else {
1744 have_unmapped = True;
1745 attrs[i] = SID_NAME_UNKNOWN;
1746 }
1747 }
1748 goto done;
1749 }
1750
1751 /* Should not happen, but better check once too many */
1752 if (!sid_check_is_domain(domain_sid)) {
1753 return NT_STATUS_INVALID_HANDLE;
1754 }
1755
1756 for (i = 0; i < num_rids; i++) {
1757 const char *name;
1758
1759 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1760 NULL)) {
1761 if (name == NULL) {
1762 return NT_STATUS_NO_MEMORY;
1763 }
1764 names[i] = name;
1765 DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1766 have_mapped = True;
1767 } else {
1768 have_unmapped = True;
1769 attrs[i] = SID_NAME_UNKNOWN;
1770 }
1771 }
1772
1773 done:
1774
1775 result = NT_STATUS_NONE_MAPPED;
1776
1777 if (have_mapped)
1778 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1779
1780 return result;
1781 }
1782
1783 #if 0
1784 static NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1785 const struct dom_sid *domain_sid,
1786 int num_names,
1787 const char **names,
1788 uint32_t *rids,
1789 enum lsa_SidType *attrs)
1790 {
1791 int i;
1792 NTSTATUS result;
1793 bool have_mapped = False;
1794 bool have_unmapped = False;
1795
1796 if (sid_check_is_builtin(domain_sid)) {
1797
1798 for (i=0; i<num_names; i++) {
1799 uint32_t rid;
1800
1801 if (lookup_builtin_name(names[i], &rid)) {
1802 attrs[i] = SID_NAME_ALIAS;
1803 rids[i] = rid;
1804 DEBUG(5,("lookup_rids: %s:%d\n",
1805 names[i], attrs[i]));
1806 have_mapped = True;
1807 } else {
1808 have_unmapped = True;
1809 attrs[i] = SID_NAME_UNKNOWN;
1810 }
1811 }
1812 goto done;
1813 }
1814
1815 /* Should not happen, but better check once too many */
1816 if (!sid_check_is_domain(domain_sid)) {
1817 return NT_STATUS_INVALID_HANDLE;
1818 }
1819
1820 for (i = 0; i < num_names; i++) {
1821 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1822 DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1823 rids[i], attrs[i]));
1824 have_mapped = True;
1825 } else {
1826 have_unmapped = True;
1827 attrs[i] = SID_NAME_UNKNOWN;
1828 }
1829 }
1830
1831 done:
1832
1833 result = NT_STATUS_NONE_MAPPED;
1834
1835 if (have_mapped)
1836 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1837
1838 return result;
1839 }
1840 #endif
1841
1842 static int pdb_search_destructor(struct pdb_search *search)
1843 {
1844 if ((!search->search_ended) && (search->search_end != NULL)) {
1845 search->search_end(search);
1846 }
1847 return 0;
1848 }
1849
1850 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1851 enum pdb_search_type type)
1852 {
1853 struct pdb_search *result;
1854
1855 result = talloc(mem_ctx, struct pdb_search);
1856 if (result == NULL) {
1857 DEBUG(0, ("talloc failed\n"));
1858 return NULL;
1859 }
1860
1861 result->type = type;
1862 result->cache = NULL;
1863 result->num_entries = 0;
1864 result->cache_size = 0;
1865 result->search_ended = False;
1866 result->search_end = NULL;
1867
1868 /* Segfault appropriately if not initialized */
1869 result->next_entry = NULL;
1870 result->search_end = NULL;
1871
1872 talloc_set_destructor(result, pdb_search_destructor);
1873
1874 return result;
1875 }
1876
1877 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1878 uint16_t acct_flags,
1879 const char *account_name,
1880 const char *fullname,
1881 const char *description,
1882 struct samr_displayentry *entry)
1883 {
1884 entry->rid = rid;
1885 entry->acct_flags = acct_flags;
1886
1887 if (account_name != NULL)
1888 entry->account_name = talloc_strdup(mem_ctx, account_name);
1889 else
1890 entry->account_name = "";
1891
1892 if (fullname != NULL)
1893 entry->fullname = talloc_strdup(mem_ctx, fullname);
1894 else
1895 entry->fullname = "";
1896
1897 if (description != NULL)
1898 entry->description = talloc_strdup(mem_ctx, description);
1899 else
1900 entry->description = "";
1901 }
1902
1903 struct group_search {
1904 GROUP_MAP *groups;
1905 size_t num_groups, current_group;
1906 };
1907
1908 static bool next_entry_groups(struct pdb_search *s,
1909 struct samr_displayentry *entry)
1910 {
1911 struct group_search *state = (struct group_search *)s->private_data;
1912 uint32_t rid;
1913 GROUP_MAP *map = &state->groups[state->current_group];
1914
1915 if (state->current_group == state->num_groups)
1916 return False;
1917
1918 sid_peek_rid(&map->sid, &rid);
1919
1920 fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
1921
1922 state->current_group += 1;
1923 return True;
1924 }
1925
1926 static void search_end_groups(struct pdb_search *search)
1927 {
1928 struct group_search *state =
1929 (struct group_search *)search->private_data;
1930 SAFE_FREE(state->groups);
1931 }
1932
1933 static bool pdb_search_grouptype(struct pdb_methods *methods,
1934 struct pdb_search *search,
1935 const struct dom_sid *sid, enum lsa_SidType type)
1936 {
1937 struct group_search *state;
1938
1939 state = talloc(search, struct group_search);
1940 if (state == NULL) {
1941 DEBUG(0, ("talloc failed\n"));
1942 return False;
1943 }
1944
1945 if (!NT_STATUS_IS_OK(methods->enum_group_mapping(methods, sid, type,
1946 &state->groups, &state->num_groups,
1947 True))) {
1948 DEBUG(0, ("Could not enum groups\n"));
1949 return False;
1950 }
1951
1952 state->current_group = 0;
1953 search->private_data = state;
1954 search->next_entry = next_entry_groups;
1955 search->search_end = search_end_groups;
1956 return True;
1957 }
1958
1959 static bool pdb_default_search_groups(struct pdb_methods *methods,
1960 struct pdb_search *search)
1961 {
1962 return pdb_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
1963 }
1964
1965 static bool pdb_default_search_aliases(struct pdb_methods *methods,
1966 struct pdb_search *search,
1967 const struct dom_sid *sid)
1968 {
1969
1970 return pdb_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
1971 }
1972
1973 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
1974 uint32_t idx)
1975 {
1976 if (idx < search->num_entries)
1977 return &search->cache[idx];
1978
1979 if (search->search_ended)
1980 return NULL;
1981
1982 while (idx >= search->num_entries) {
1983 struct samr_displayentry entry;
1984
1985 if (!search->next_entry(search, &entry)) {
1986 search->search_end(search);
1987 search->search_ended = True;
1988 break;
1989 }
1990
1991 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
1992 entry, &search->cache, &search->num_entries,
1993 &search->cache_size);
1994 }
1995
1996 return (search->num_entries > idx) ? &search->cache[idx] : NULL;
1997 }
1998
1999 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
2000 {
2001 struct pdb_methods *pdb = pdb_get_methods();
2002 struct pdb_search *result;
2003
2004 result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
2005 if (result == NULL) {
2006 return NULL;
2007 }
2008
2009 if (!pdb->search_users(pdb, result, acct_flags)) {
2010 TALLOC_FREE(result);
2011 return NULL;
2012 }
2013 return result;
2014 }
2015
2016 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
2017 {
2018 struct pdb_methods *pdb = pdb_get_methods();
2019 struct pdb_search *result;
2020
2021 result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
2022 if (result == NULL) {
2023 return NULL;
2024 }
2025
2026 if (!pdb->search_groups(pdb, result)) {
2027 TALLOC_FREE(result);
2028 return NULL;
2029 }
2030 return result;
2031 }
2032
2033 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
2034 {
2035 struct pdb_methods *pdb = pdb_get_methods();
2036 struct pdb_search *result;
2037
2038 if (pdb == NULL) return NULL;
2039
2040 result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
2041 if (result == NULL) {
2042 return NULL;
2043 }
2044
2045 if (!pdb->search_aliases(pdb, result, sid)) {
2046 TALLOC_FREE(result);
2047 return NULL;
2048 }
2049 return result;
2050 }
2051
2052 uint32_t pdb_search_entries(struct pdb_search *search,
2053 uint32_t start_idx, uint32_t max_entries,
2054 struct samr_displayentry **result)
2055 {
2056 struct samr_displayentry *end_entry;
2057 uint32_t end_idx = start_idx+max_entries-1;
2058
2059 /* The first entry needs to be searched after the last. Otherwise the
2060 * first entry might have moved due to a realloc during the search for
2061 * the last entry. */
2062
2063 end_entry = pdb_search_getentry(search, end_idx);
2064 *result = pdb_search_getentry(search, start_idx);
2065
2066 if (end_entry != NULL)
2067 return max_entries;
2068
2069 if (start_idx >= search->num_entries)
2070 return 0;
2071
2072 return search->num_entries - start_idx;
2073 }
2074
2075 /*******************************************************************
2076 trustdom methods
2077 *******************************************************************/
2078
2079 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2080 time_t *pass_last_set_time)
2081 {
2082 struct pdb_methods *pdb = pdb_get_methods();
2083 return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2084 pass_last_set_time);
2085 }
2086
2087 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2088 const struct dom_sid *sid)
2089 {
2090 struct pdb_methods *pdb = pdb_get_methods();
2091 return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2092 }
2093
2094 bool pdb_del_trusteddom_pw(const char *domain)
2095 {
2096 struct pdb_methods *pdb = pdb_get_methods();
2097 return pdb->del_trusteddom_pw(pdb, domain);
2098 }
2099
2100 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2101 struct trustdom_info ***domains)
2102 {
2103 struct pdb_methods *pdb = pdb_get_methods();
2104 return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2105 }
2106
2107 /*******************************************************************
2108 the defaults for trustdom methods:
2109 these simply call the original passdb/secrets.c actions,
2110 to be replaced by pdb_ldap.
2111 *******************************************************************/
2112
2113 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2114 const char *domain,
2115 char** pwd,
2116 struct dom_sid *sid,
2117 time_t *pass_last_set_time)
2118 {
2119 return secrets_fetch_trusted_domain_password(domain, pwd,
2120 sid, pass_last_set_time);
2121
2122 }
2123
2124 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2125 const char* domain,
2126 const char* pwd,
2127 const struct dom_sid *sid)
2128 {
2129 return secrets_store_trusted_domain_password(domain, pwd, sid);
2130 }
2131
2132 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2133 const char *domain)
2134 {
2135 return trusted_domain_password_delete(domain);
2136 }
2137
2138 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2139 TALLOC_CTX *mem_ctx,
2140 uint32_t *num_domains,
2141 struct trustdom_info ***domains)
2142 {
2143 return secrets_trusted_domains(mem_ctx, num_domains, domains);
2144 }
2145
2146 /*******************************************************************
2147 trusted_domain methods
2148 *******************************************************************/
2149
2150 NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain,
2151 struct pdb_trusted_domain **td)
2152 {
2153 struct pdb_methods *pdb = pdb_get_methods();
2154 return pdb->get_trusted_domain(pdb, mem_ctx, domain, td);
2155 }
2156
2157 NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid,
2158 struct pdb_trusted_domain **td)
2159 {
2160 struct pdb_methods *pdb = pdb_get_methods();
2161 return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td);
2162 }
2163
2164 NTSTATUS pdb_set_trusted_domain(const char* domain,
2165 const struct pdb_trusted_domain *td)
2166 {
2167 struct pdb_methods *pdb = pdb_get_methods();
2168 return pdb->set_trusted_domain(pdb, domain, td);
2169 }
2170
2171 NTSTATUS pdb_del_trusted_domain(const char *domain)
2172 {
2173 struct pdb_methods *pdb = pdb_get_methods();
2174 return pdb->del_trusted_domain(pdb, domain);
2175 }
2176
2177 NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2178 struct pdb_trusted_domain ***domains)
2179 {
2180 struct pdb_methods *pdb = pdb_get_methods();
2181 return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains);
2182 }
2183
2184 static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods,
2185 TALLOC_CTX *mem_ctx,
2186 const char *domain,
2187 struct pdb_trusted_domain **td)
2188 {
2189 struct trustAuthInOutBlob taiob;
2190 struct AuthenticationInformation aia;
2191 struct pdb_trusted_domain *tdom;
2192 enum ndr_err_code ndr_err;
2193 time_t last_set_time;
2194 char *pwd;
2195 bool ok;
2196
2197 tdom = talloc(mem_ctx, struct pdb_trusted_domain);
2198 if (!tdom) {
2199 return NT_STATUS_NO_MEMORY;
2200 }
2201
2202 tdom->domain_name = talloc_strdup(tdom, domain);
2203 tdom->netbios_name = talloc_strdup(tdom, domain);
2204 if (!tdom->domain_name || !tdom->netbios_name) {
2205 talloc_free(tdom);
2206 return NT_STATUS_NO_MEMORY;
2207 }
2208
2209 tdom->trust_auth_incoming = data_blob_null;
2210
2211 ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier,
2212 &last_set_time);
2213 if (!ok) {
2214 talloc_free(tdom);
2215 return NT_STATUS_UNSUCCESSFUL;
2216 }
2217
2218 ZERO_STRUCT(taiob);
2219 ZERO_STRUCT(aia);
2220 taiob.count = 1;
2221 taiob.current.count = 1;
2222 taiob.current.array = &aia;
2223 unix_to_nt_time(&aia.LastUpdateTime, last_set_time);
2224 aia.AuthType = TRUST_AUTH_TYPE_CLEAR;
2225 aia.AuthInfo.clear.password = (uint8_t *) pwd;
2226 aia.AuthInfo.clear.size = strlen(pwd);
2227 taiob.previous.count = 0;
2228 taiob.previous.array = NULL;
2229
2230 ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing,
2231 tdom, &taiob,
2232 (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
2233 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2234 talloc_free(tdom);
2235 return NT_STATUS_UNSUCCESSFUL;
2236 }
2237
2238 tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND;
2239 tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL;
2240 tdom->trust_attributes = 0;
2241 tdom->trust_forest_trust_info = data_blob_null;
2242
2243 *td = tdom;
2244 return NT_STATUS_OK;
2245 }
2246
2247 static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods,
2248 TALLOC_CTX *mem_ctx,
2249 struct dom_sid *sid,
2250 struct pdb_trusted_domain **td)
2251 {
2252 return NT_STATUS_NOT_IMPLEMENTED;
2253 }
2254
2255 #define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0)
2256
2257 static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods,
2258 const char* domain,
2259 const struct pdb_trusted_domain *td)
2260 {
2261 struct trustAuthInOutBlob taiob;
2262 struct AuthenticationInformation *aia;
2263 enum ndr_err_code ndr_err;
2264 char *pwd;
2265 bool ok;
2266
2267 if (td->trust_attributes != 0 ||
2268 td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL ||
2269 td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND ||
2270 !IS_NULL_DATA_BLOB(td->trust_auth_incoming) ||
2271 !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) {
2272 return NT_STATUS_NOT_IMPLEMENTED;
2273 }
2274
2275 ZERO_STRUCT(taiob);
2276 ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(),
2277 &taiob,
2278 (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2279 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2280 return NT_STATUS_UNSUCCESSFUL;
2281 }
2282
2283 aia = (struct AuthenticationInformation *) taiob.current.array;
2284
2285 if (taiob.count != 1 || taiob.current.count != 1 ||
2286 taiob.previous.count != 0 ||
2287 aia->AuthType != TRUST_AUTH_TYPE_CLEAR) {
2288 return NT_STATUS_NOT_IMPLEMENTED;
2289 }
2290
2291 pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password,
2292 aia->AuthInfo.clear.size);
2293 if (!pwd) {
2294 return NT_STATUS_NO_MEMORY;
2295 }
2296
2297 ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier);
2298 if (!ok) {
2299 return NT_STATUS_UNSUCCESSFUL;
2300 }
2301
2302 return NT_STATUS_OK;
2303 }
2304
2305 static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods,
2306 const char *domain)
2307 {
2308 return NT_STATUS_NOT_IMPLEMENTED;
2309 }
2310
2311 static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods,
2312 TALLOC_CTX *mem_ctx,
2313 uint32_t *num_domains,
2314 struct pdb_trusted_domain ***domains)
2315 {
2316 return NT_STATUS_NOT_IMPLEMENTED;
2317 }
2318
2319 static struct pdb_domain_info *pdb_default_get_domain_info(
2320 struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2321 {
2322 return NULL;
2323 }
2324
2325 /*******************************************************************
2326 secret methods
2327 *******************************************************************/
2328
2329 NTSTATUS pdb_get_secret(TALLOC_CTX *mem_ctx,
2330 const char *secret_name,
2331 DATA_BLOB *secret_current,
2332 NTTIME *secret_current_lastchange,
2333 DATA_BLOB *secret_old,
2334 NTTIME *secret_old_lastchange,
2335 struct security_descriptor **sd)
2336 {
2337 struct pdb_methods *pdb = pdb_get_methods();
2338 return pdb->get_secret(pdb, mem_ctx, secret_name,
2339 secret_current, secret_current_lastchange,
2340 secret_old, secret_old_lastchange,
2341 sd);
2342 }
2343
2344 NTSTATUS pdb_set_secret(const char *secret_name,
2345 DATA_BLOB *secret_current,
2346 DATA_BLOB *secret_old,
2347 struct security_descriptor *sd)
2348 {
2349 struct pdb_methods *pdb = pdb_get_methods();
2350 return pdb->set_secret(pdb, secret_name,
2351 secret_current,
2352 secret_old,
2353 sd);
2354 }
2355
2356 NTSTATUS pdb_delete_secret(const char *secret_name)
2357 {
2358 struct pdb_methods *pdb = pdb_get_methods();
2359 return pdb->delete_secret(pdb, secret_name);
2360 }
2361
2362 static NTSTATUS pdb_default_get_secret(struct pdb_methods *methods,
2363 TALLOC_CTX *mem_ctx,
2364 const char *secret_name,
2365 DATA_BLOB *secret_current,
2366 NTTIME *secret_current_lastchange,
2367 DATA_BLOB *secret_old,
2368 NTTIME *secret_old_lastchange,
2369 struct security_descriptor **sd)
2370 {
2371 return lsa_secret_get(mem_ctx, secret_name,
2372 secret_current,
2373 secret_current_lastchange,
2374 secret_old,
2375 secret_old_lastchange,
2376 sd);
2377 }
2378
2379 static NTSTATUS pdb_default_set_secret(struct pdb_methods *methods,
2380 const char *secret_name,
2381 DATA_BLOB *secret_current,
2382 DATA_BLOB *secret_old,
2383 struct security_descriptor *sd)
2384 {
2385 return lsa_secret_set(secret_name,
2386 secret_current,
2387 secret_old,
2388 sd);
2389 }
2390
2391 static NTSTATUS pdb_default_delete_secret(struct pdb_methods *methods,
2392 const char *secret_name)
2393 {
2394 return lsa_secret_delete(secret_name);
2395 }
2396
2397 /*******************************************************************
2398 Create a pdb_methods structure and initialize it with the default
2399 operations. In this way a passdb module can simply implement
2400 the functionality it cares about. However, normally this is done
2401 in groups of related functions.
2402 *******************************************************************/
2403
2404 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2405 {
2406 /* allocate memory for the structure as its own talloc CTX */
2407
2408 *methods = talloc_zero(NULL, struct pdb_methods);
2409 if (*methods == NULL) {
2410 return NT_STATUS_NO_MEMORY;
2411 }
2412
2413 (*methods)->get_domain_info = pdb_default_get_domain_info;
2414 (*methods)->getsampwnam = pdb_default_getsampwnam;
2415 (*methods)->getsampwsid = pdb_default_getsampwsid;
2416 (*methods)->create_user = pdb_default_create_user;
2417 (*methods)->delete_user = pdb_default_delete_user;
2418 (*methods)->add_sam_account = pdb_default_add_sam_account;
2419 (*methods)->update_sam_account = pdb_default_update_sam_account;
2420 (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2421 (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2422 (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2423
2424 (*methods)->getgrsid = pdb_default_getgrsid;
2425 (*methods)->getgrgid = pdb_default_getgrgid;
2426 (*methods)->getgrnam = pdb_default_getgrnam;
2427 (*methods)->create_dom_group = pdb_default_create_dom_group;
2428 (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2429 (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2430 (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2431 (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2432 (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2433 (*methods)->enum_group_members = pdb_default_enum_group_members;
2434 (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2435 (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2436 (*methods)->add_groupmem = pdb_default_add_groupmem;
2437 (*methods)->del_groupmem = pdb_default_del_groupmem;
2438 (*methods)->create_alias = pdb_default_create_alias;
2439 (*methods)->delete_alias = pdb_default_delete_alias;
2440 (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2441 (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2442 (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2443 (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2444 (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2445 (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2446 (*methods)->lookup_rids = pdb_default_lookup_rids;
2447 (*methods)->get_account_policy = pdb_default_get_account_policy;
2448 (*methods)->set_account_policy = pdb_default_set_account_policy;
2449 (*methods)->get_seq_num = pdb_default_get_seq_num;
2450 (*methods)->uid_to_sid = pdb_default_uid_to_sid;
2451 (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2452 (*methods)->sid_to_id = pdb_default_sid_to_id;
2453
2454 (*methods)->search_groups = pdb_default_search_groups;
2455 (*methods)->search_aliases = pdb_default_search_aliases;
2456
2457 (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2458 (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2459 (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2460 (*methods)->enum_trusteddoms = pdb_default_enum_trusteddoms;
2461
2462 (*methods)->get_trusted_domain = pdb_default_get_trusted_domain;
2463 (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid;
2464 (*methods)->set_trusted_domain = pdb_default_set_trusted_domain;
2465 (*methods)->del_trusted_domain = pdb_default_del_trusted_domain;
2466 (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains;
2467
2468 (*methods)->get_secret = pdb_default_get_secret;
2469 (*methods)->set_secret = pdb_default_set_secret;
2470 (*methods)->delete_secret = pdb_default_delete_secret;
2471
2472 return NT_STATUS_OK;
2473 }
reg import