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s3: Fix Coverity ID 242726 Uninitialized scalar variable
[Samba/gebeck_regimport.git] / source3 / passdb / pdb_interface.c
blob6945a4210cca3bb8bab6ed8c689cb4dbb47af929
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 "../librpc/gen_ndr/idmap.h"
32 #include "memcache.h"
33 #include "nsswitch/winbind_client.h"
34 #include "../libcli/security/security.h"
35 #include "../lib/util/util_pw.h"
36 #include "passdb/pdb_secrets.h"
37
38 #undef DBGC_CLASS
39 #define DBGC_CLASS DBGC_PASSDB
40
41 static_decl_pdb;
42
43 static struct pdb_init_function_entry *backends = NULL;
44
45 static void lazy_initialize_passdb(void)
46 {
47 static bool initialized = False;
48 if(initialized) {
49 return;
50 }
51 static_init_pdb;
52 initialized = True;
53 }
54
55 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
56 const char **name,
57 enum lsa_SidType *psid_name_use,
58 uid_t *uid, gid_t *gid);
59
60 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
61 {
62 struct pdb_init_function_entry *entry = backends;
63
64 if(version != PASSDB_INTERFACE_VERSION) {
65 DEBUG(0,("Can't register passdb backend!\n"
66 "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
67 "while this version of samba uses version %d\n",
68 version,PASSDB_INTERFACE_VERSION));
69 return NT_STATUS_OBJECT_TYPE_MISMATCH;
70 }
71
72 if (!name || !init) {
73 return NT_STATUS_INVALID_PARAMETER;
74 }
75
76 DEBUG(5,("Attempting to register passdb backend %s\n", name));
77
78 /* Check for duplicates */
79 if (pdb_find_backend_entry(name)) {
80 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
81 return NT_STATUS_OBJECT_NAME_COLLISION;
82 }
83
84 entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
85 entry->name = smb_xstrdup(name);
86 entry->init = init;
87
88 DLIST_ADD(backends, entry);
89 DEBUG(5,("Successfully added passdb backend '%s'\n", name));
90 return NT_STATUS_OK;
91 }
92
93 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
94 {
95 struct pdb_init_function_entry *entry = backends;
96
97 while(entry) {
98 if (strcmp(entry->name, name)==0) return entry;
99 entry = entry->next;
100 }
101
102 return NULL;
103 }
104
105 const struct pdb_init_function_entry *pdb_get_backends(void)
106 {
107 return backends;
108 }
109
110
111 /*
112 * The event context for the passdb backend. I know this is a bad hack and yet
113 * another static variable, but our pdb API is a global thing per
114 * definition. The first use for this is the LDAP idle function, more might be
115 * added later.
116 *
117 * I don't feel too bad about this static variable, it replaces the
118 * smb_idle_event_list that used to exist in lib/module.c. -- VL
119 */
120
121 static struct tevent_context *pdb_tevent_ctx;
122
123 struct tevent_context *pdb_get_tevent_context(void)
124 {
125 return pdb_tevent_ctx;
126 }
127
128 /******************************************************************
129 Make a pdb_methods from scratch
130 *******************************************************************/
131
132 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
133 {
134 char *module_name = smb_xstrdup(selected);
135 char *module_location = NULL, *p;
136 struct pdb_init_function_entry *entry;
137 NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
138
139 lazy_initialize_passdb();
140
141 p = strchr(module_name, ':');
142
143 if (p) {
144 *p = 0;
145 module_location = p+1;
146 trim_char(module_location, ' ', ' ');
147 }
148
149 trim_char(module_name, ' ', ' ');
150
151
152 DEBUG(5,("Attempting to find a passdb backend to match %s (%s)\n", selected, module_name));
153
154 entry = pdb_find_backend_entry(module_name);
155
156 /* Try to find a module that contains this module */
157 if (!entry) {
158 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
159 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
160 DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
161 SAFE_FREE(module_name);
162 return NT_STATUS_UNSUCCESSFUL;
163 }
164 }
165
166 /* No such backend found */
167 if(!entry) {
168 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
169 SAFE_FREE(module_name);
170 return NT_STATUS_INVALID_PARAMETER;
171 }
172
173 DEBUG(5,("Found pdb backend %s\n", module_name));
174
175 if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
176 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
177 selected, nt_errstr(nt_status)));
178 SAFE_FREE(module_name);
179 return nt_status;
180 }
181
182 SAFE_FREE(module_name);
183
184 DEBUG(5,("pdb backend %s has a valid init\n", selected));
185
186 return nt_status;
187 }
188
189 /******************************************************************
190 Return an already initialized pdb_methods structure
191 *******************************************************************/
192
193 static struct pdb_methods *pdb_get_methods_reload( bool reload )
194 {
195 static struct pdb_methods *pdb = NULL;
196
197 if ( pdb && reload ) {
198 pdb->free_private_data( &(pdb->private_data) );
199 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
200 return NULL;
201 }
202 }
203
204 if ( !pdb ) {
205 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
206 return NULL;
207 }
208 }
209
210 return pdb;
211 }
212
213 static struct pdb_methods *pdb_get_methods(void)
214 {
215 struct pdb_methods *pdb;
216
217 pdb = pdb_get_methods_reload(false);
218 if (!pdb) {
219 char *msg = NULL;
220 if (asprintf(&msg, "pdb_get_methods: "
221 "failed to get pdb methods for backend %s\n",
222 lp_passdb_backend()) > 0) {
223 smb_panic(msg);
224 } else {
225 smb_panic("pdb_get_methods");
226 }
227 }
228
229 return pdb;
230 }
231
232 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
233 {
234 struct pdb_methods *pdb = pdb_get_methods();
235 return pdb->get_domain_info(pdb, mem_ctx);
236 }
237
238 /**
239 * @brief Check if the user account has been locked out and try to unlock it.
240 *
241 * If the user has been automatically locked out and a lockout duration is set,
242 * then check if we can unlock the account and reset the bad password values.
243 *
244 * @param[in] sampass The sam user to check.
245 *
246 * @return True if the function was successfull, false on an error.
247 */
248 static bool pdb_try_account_unlock(struct samu *sampass)
249 {
250 uint32_t acb_info = pdb_get_acct_ctrl(sampass);
251
252 if ((acb_info & ACB_NORMAL) && (acb_info & ACB_AUTOLOCK)) {
253 uint32_t lockout_duration;
254 time_t bad_password_time;
255 time_t now = time(NULL);
256 bool ok;
257
258 ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION,
259 &lockout_duration);
260 if (!ok) {
261 DEBUG(0, ("pdb_try_account_unlock: "
262 "pdb_get_account_policy failed.\n"));
263 return false;
264 }
265
266 if (lockout_duration == (uint32_t) -1 ||
267 lockout_duration == 0) {
268 DEBUG(9, ("pdb_try_account_unlock: No reset duration, "
269 "can't reset autolock\n"));
270 return false;
271 }
272 lockout_duration *= 60;
273
274 bad_password_time = pdb_get_bad_password_time(sampass);
275 if (bad_password_time == (time_t) 0) {
276 DEBUG(2, ("pdb_try_account_unlock: Account %s "
277 "administratively locked out "
278 "with no bad password "
279 "time. Leaving locked out.\n",
280 pdb_get_username(sampass)));
281 return true;
282 }
283
284 if ((bad_password_time +
285 convert_uint32_t_to_time_t(lockout_duration)) < now) {
286 NTSTATUS status;
287
288 pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK,
289 PDB_CHANGED);
290 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
291 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
292
293 become_root();
294 status = pdb_update_sam_account(sampass);
295 unbecome_root();
296 if (!NT_STATUS_IS_OK(status)) {
297 DEBUG(0, ("_samr_OpenUser: Couldn't "
298 "update account %s - %s\n",
299 pdb_get_username(sampass),
300 nt_errstr(status)));
301 return false;
302 }
303 }
304 }
305
306 return true;
307 }
308
309 /**
310 * @brief Get a sam user structure by the given username.
311 *
312 * This functions also checks if the account has been automatically locked out
313 * and unlocks it if a lockout duration time has been defined and the time has
314 * elapsed.
315 *
316 * @param[in] sam_acct The sam user structure to fill.
317 *
318 * @param[in] username The username to look for.
319 *
320 * @return True on success, false on error.
321 */
322 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
323 {
324 struct pdb_methods *pdb = pdb_get_methods();
325 struct samu *for_cache;
326 const struct dom_sid *user_sid;
327 NTSTATUS status;
328 bool ok;
329
330 status = pdb->getsampwnam(pdb, sam_acct, username);
331 if (!NT_STATUS_IS_OK(status)) {
332 return false;
333 }
334
335 ok = pdb_try_account_unlock(sam_acct);
336 if (!ok) {
337 DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n",
338 username));
339 }
340
341 for_cache = samu_new(NULL);
342 if (for_cache == NULL) {
343 return False;
344 }
345
346 if (!pdb_copy_sam_account(for_cache, sam_acct)) {
347 TALLOC_FREE(for_cache);
348 return False;
349 }
350
351 user_sid = pdb_get_user_sid(for_cache);
352
353 memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
354 data_blob_const(user_sid, sizeof(*user_sid)),
355 &for_cache);
356
357 return True;
358 }
359
360 /**********************************************************************
361 **********************************************************************/
362
363 static bool guest_user_info( struct samu *user )
364 {
365 struct passwd *pwd;
366 NTSTATUS result;
367 const char *guestname = lp_guestaccount();
368
369 pwd = Get_Pwnam_alloc(talloc_tos(), guestname);
370 if (pwd == NULL) {
371 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
372 guestname));
373 return False;
374 }
375
376 result = samu_set_unix(user, pwd );
377
378 TALLOC_FREE( pwd );
379
380 return NT_STATUS_IS_OK( result );
381 }
382
383 /**
384 * @brief Get a sam user structure by the given username.
385 *
386 * This functions also checks if the account has been automatically locked out
387 * and unlocks it if a lockout duration time has been defined and the time has
388 * elapsed.
389 *
390 *
391 * @param[in] sam_acct The sam user structure to fill.
392 *
393 * @param[in] sid The user SDI to look up.
394 *
395 * @return True on success, false on error.
396 */
397 bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid)
398 {
399 struct pdb_methods *pdb = pdb_get_methods();
400 uint32_t rid;
401 void *cache_data;
402 bool ok = false;
403
404 /* hard code the Guest RID of 501 */
405
406 if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
407 return False;
408
409 if ( rid == DOMAIN_RID_GUEST ) {
410 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
411 return guest_user_info( sam_acct );
412 }
413
414 /* check the cache first */
415
416 cache_data = memcache_lookup_talloc(
417 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
418
419 if (cache_data != NULL) {
420 struct samu *cache_copy = talloc_get_type_abort(
421 cache_data, struct samu);
422
423 ok = pdb_copy_sam_account(sam_acct, cache_copy);
424 } else {
425 ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
426 }
427
428 if (!ok) {
429 return false;
430 }
431
432 ok = pdb_try_account_unlock(sam_acct);
433 if (!ok) {
434 DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n",
435 sam_acct->username));
436 }
437
438 return true;
439 }
440
441 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
442 TALLOC_CTX *tmp_ctx, const char *name,
443 uint32_t acb_info, uint32_t *rid)
444 {
445 struct samu *sam_pass;
446 NTSTATUS status;
447 struct passwd *pwd;
448
449 if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
450 return NT_STATUS_NO_MEMORY;
451 }
452
453 if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
454 char *add_script = NULL;
455 int add_ret;
456 fstring name2;
457
458 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
459 add_script = talloc_strdup(tmp_ctx,
460 lp_adduser_script());
461 } else {
462 add_script = talloc_strdup(tmp_ctx,
463 lp_addmachine_script());
464 }
465
466 if (!add_script || add_script[0] == '\0') {
467 DEBUG(3, ("Could not find user %s and no add script "
468 "defined\n", name));
469 return NT_STATUS_NO_SUCH_USER;
470 }
471
472 /* lowercase the username before creating the Unix account for
473 compatibility with previous Samba releases */
474 fstrcpy( name2, name );
475 strlower_m( name2 );
476 add_script = talloc_all_string_sub(tmp_ctx,
477 add_script,
478 "%u",
479 name2);
480 if (!add_script) {
481 return NT_STATUS_NO_MEMORY;
482 }
483 add_ret = smbrun(add_script,NULL);
484 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
485 add_script, add_ret));
486 if (add_ret == 0) {
487 smb_nscd_flush_user_cache();
488 }
489
490 flush_pwnam_cache();
491
492 pwd = Get_Pwnam_alloc(tmp_ctx, name);
493
494 if(pwd == NULL) {
495 DEBUG(3, ("Could not find user %s, add script did not work\n", name));
496 return NT_STATUS_NO_SUCH_USER;
497 }
498 }
499
500 /* we have a valid SID coming out of this call */
501
502 status = samu_alloc_rid_unix(methods, sam_pass, pwd);
503
504 TALLOC_FREE( pwd );
505
506 if (!NT_STATUS_IS_OK(status)) {
507 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
508 return status;
509 }
510
511 if (!sid_peek_check_rid(get_global_sam_sid(),
512 pdb_get_user_sid(sam_pass), rid)) {
513 DEBUG(0, ("Could not get RID of fresh user\n"));
514 return NT_STATUS_INTERNAL_ERROR;
515 }
516
517 /* Use the username case specified in the original request */
518
519 pdb_set_username( sam_pass, name, PDB_SET );
520
521 /* Disable the account on creation, it does not have a reasonable password yet. */
522
523 acb_info |= ACB_DISABLED;
524
525 pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
526
527 status = methods->add_sam_account(methods, sam_pass);
528
529 TALLOC_FREE(sam_pass);
530
531 return status;
532 }
533
534 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags,
535 uint32_t *rid)
536 {
537 struct pdb_methods *pdb = pdb_get_methods();
538 return pdb->create_user(pdb, mem_ctx, name, flags, rid);
539 }
540
541 /****************************************************************************
542 Delete a UNIX user on demand.
543 ****************************************************************************/
544
545 static int smb_delete_user(const char *unix_user)
546 {
547 char *del_script = NULL;
548 int ret;
549
550 /* safety check */
551
552 if ( strequal( unix_user, "root" ) ) {
553 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
554 return -1;
555 }
556
557 del_script = talloc_strdup(talloc_tos(), lp_deluser_script());
558 if (!del_script || !*del_script) {
559 return -1;
560 }
561 del_script = talloc_all_string_sub(talloc_tos(),
562 del_script,
563 "%u",
564 unix_user);
565 if (!del_script) {
566 return -1;
567 }
568 ret = smbrun(del_script,NULL);
569 flush_pwnam_cache();
570 if (ret == 0) {
571 smb_nscd_flush_user_cache();
572 }
573 DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
574
575 return ret;
576 }
577
578 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
579 TALLOC_CTX *mem_ctx,
580 struct samu *sam_acct)
581 {
582 NTSTATUS status;
583 fstring username;
584
585 status = methods->delete_sam_account(methods, sam_acct);
586 if (!NT_STATUS_IS_OK(status)) {
587 return status;
588 }
589
590 /*
591 * Now delete the unix side ....
592 * note: we don't check if the delete really happened as the script is
593 * not necessary present and maybe the sysadmin doesn't want to delete
594 * the unix side
595 */
596
597 /* always lower case the username before handing it off to
598 external scripts */
599
600 fstrcpy( username, pdb_get_username(sam_acct) );
601 strlower_m( username );
602
603 smb_delete_user( username );
604
605 return status;
606 }
607
608 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
609 {
610 struct pdb_methods *pdb = pdb_get_methods();
611 uid_t uid = -1;
612 NTSTATUS status;
613 const struct dom_sid *user_sid;
614 char *msg_data;
615
616 user_sid = pdb_get_user_sid(sam_acct);
617
618 /* sanity check to make sure we don't delete root */
619
620 if ( !sid_to_uid(user_sid, &uid ) ) {
621 return NT_STATUS_NO_SUCH_USER;
622 }
623
624 if ( uid == 0 ) {
625 return NT_STATUS_ACCESS_DENIED;
626 }
627
628 memcache_delete(NULL,
629 PDB_GETPWSID_CACHE,
630 data_blob_const(user_sid, sizeof(*user_sid)));
631
632 status = pdb->delete_user(pdb, mem_ctx, sam_acct);
633 if (!NT_STATUS_IS_OK(status)) {
634 return status;
635 }
636
637 msg_data = talloc_asprintf(mem_ctx, "USER %s",
638 pdb_get_username(sam_acct));
639 if (!msg_data) {
640 /* not fatal, and too late to rollback,
641 * just return */
642 return status;
643 }
644 message_send_all(server_messaging_context(),
645 ID_CACHE_DELETE,
646 msg_data,
647 strlen(msg_data) + 1,
648 NULL);
649
650 TALLOC_FREE(msg_data);
651 return status;
652 }
653
654 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
655 {
656 struct pdb_methods *pdb = pdb_get_methods();
657 return pdb->add_sam_account(pdb, sam_acct);
658 }
659
660 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
661 {
662 struct pdb_methods *pdb = pdb_get_methods();
663
664 memcache_flush(NULL, PDB_GETPWSID_CACHE);
665
666 return pdb->update_sam_account(pdb, sam_acct);
667 }
668
669 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
670 {
671 struct pdb_methods *pdb = pdb_get_methods();
672 const struct dom_sid *user_sid = pdb_get_user_sid(sam_acct);
673
674 memcache_delete(NULL,
675 PDB_GETPWSID_CACHE,
676 data_blob_const(user_sid, sizeof(*user_sid)));
677
678 return pdb->delete_sam_account(pdb, sam_acct);
679 }
680
681 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
682 {
683 struct pdb_methods *pdb = pdb_get_methods();
684 uid_t uid;
685 NTSTATUS status;
686
687 memcache_flush(NULL, PDB_GETPWSID_CACHE);
688
689 /* sanity check to make sure we don't rename root */
690
691 if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
692 return NT_STATUS_NO_SUCH_USER;
693 }
694
695 if ( uid == 0 ) {
696 return NT_STATUS_ACCESS_DENIED;
697 }
698
699 status = pdb->rename_sam_account(pdb, oldname, newname);
700
701 /* always flush the cache here just to be safe */
702 flush_pwnam_cache();
703
704 return status;
705 }
706
707 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
708 {
709 struct pdb_methods *pdb = pdb_get_methods();
710 return pdb->update_login_attempts(pdb, sam_acct, success);
711 }
712
713 bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid)
714 {
715 struct pdb_methods *pdb = pdb_get_methods();
716 return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
717 }
718
719 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
720 {
721 struct pdb_methods *pdb = pdb_get_methods();
722 return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
723 }
724
725 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
726 {
727 struct pdb_methods *pdb = pdb_get_methods();
728 return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
729 }
730
731 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
732 TALLOC_CTX *mem_ctx,
733 const char *name,
734 uint32_t *rid)
735 {
736 struct dom_sid group_sid;
737 struct group *grp;
738 fstring tmp;
739
740 grp = getgrnam(name);
741
742 if (grp == NULL) {
743 gid_t gid;
744
745 if (smb_create_group(name, &gid) != 0) {
746 return NT_STATUS_ACCESS_DENIED;
747 }
748
749 grp = getgrgid(gid);
750 }
751
752 if (grp == NULL) {
753 return NT_STATUS_ACCESS_DENIED;
754 }
755
756 if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
757 if (!pdb_new_rid(rid)) {
758 return NT_STATUS_ACCESS_DENIED;
759 }
760 } else {
761 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
762 }
763
764 sid_compose(&group_sid, get_global_sam_sid(), *rid);
765
766 return add_initial_entry(grp->gr_gid, sid_to_fstring(tmp, &group_sid),
767 SID_NAME_DOM_GRP, name, NULL);
768 }
769
770 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
771 uint32_t *rid)
772 {
773 struct pdb_methods *pdb = pdb_get_methods();
774 return pdb->create_dom_group(pdb, mem_ctx, name, rid);
775 }
776
777 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
778 TALLOC_CTX *mem_ctx,
779 uint32_t rid)
780 {
781 struct dom_sid group_sid;
782 GROUP_MAP *map;
783 NTSTATUS status;
784 struct group *grp;
785 const char *grp_name;
786
787 map = talloc_zero(mem_ctx, GROUP_MAP);
788 if (!map) {
789 return NT_STATUS_NO_MEMORY;
790 }
791
792 /* coverity */
793 map->gid = (gid_t) -1;
794
795 sid_compose(&group_sid, get_global_sam_sid(), rid);
796
797 if (!get_domain_group_from_sid(group_sid, map)) {
798 DEBUG(10, ("Could not find group for rid %d\n", rid));
799 return NT_STATUS_NO_SUCH_GROUP;
800 }
801
802 /* We need the group name for the smb_delete_group later on */
803
804 if (map->gid == (gid_t)-1) {
805 return NT_STATUS_NO_SUCH_GROUP;
806 }
807
808 grp = getgrgid(map->gid);
809 if (grp == NULL) {
810 return NT_STATUS_NO_SUCH_GROUP;
811 }
812
813 TALLOC_FREE(map);
814
815 /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
816
817 grp_name = talloc_strdup(mem_ctx, grp->gr_name);
818 if (grp_name == NULL) {
819 return NT_STATUS_NO_MEMORY;
820 }
821
822 status = pdb_delete_group_mapping_entry(group_sid);
823
824 if (!NT_STATUS_IS_OK(status)) {
825 return status;
826 }
827
828 /* Don't check the result of smb_delete_group */
829
830 smb_delete_group(grp_name);
831
832 return NT_STATUS_OK;
833 }
834
835 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
836 {
837 struct pdb_methods *pdb = pdb_get_methods();
838 return pdb->delete_dom_group(pdb, mem_ctx, rid);
839 }
840
841 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
842 {
843 struct pdb_methods *pdb = pdb_get_methods();
844 return pdb->add_group_mapping_entry(pdb, map);
845 }
846
847 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
848 {
849 struct pdb_methods *pdb = pdb_get_methods();
850 return pdb->update_group_mapping_entry(pdb, map);
851 }
852
853 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
854 {
855 struct pdb_methods *pdb = pdb_get_methods();
856 return pdb->delete_group_mapping_entry(pdb, sid);
857 }
858
859 bool pdb_enum_group_mapping(const struct dom_sid *sid,
860 enum lsa_SidType sid_name_use,
861 GROUP_MAP ***pp_rmap,
862 size_t *p_num_entries,
863 bool unix_only)
864 {
865 struct pdb_methods *pdb = pdb_get_methods();
866 return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
867 pp_rmap, p_num_entries, unix_only));
868 }
869
870 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
871 const struct dom_sid *sid,
872 uint32_t **pp_member_rids,
873 size_t *p_num_members)
874 {
875 struct pdb_methods *pdb = pdb_get_methods();
876 NTSTATUS result;
877
878 result = pdb->enum_group_members(pdb, mem_ctx,
879 sid, pp_member_rids, p_num_members);
880
881 /* special check for rid 513 */
882
883 if ( !NT_STATUS_IS_OK( result ) ) {
884 uint32_t rid;
885
886 sid_peek_rid( sid, &rid );
887
888 if ( rid == DOMAIN_RID_USERS ) {
889 *p_num_members = 0;
890 *pp_member_rids = NULL;
891
892 return NT_STATUS_OK;
893 }
894 }
895
896 return result;
897 }
898
899 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
900 struct dom_sid **pp_sids, gid_t **pp_gids,
901 uint32_t *p_num_groups)
902 {
903 struct pdb_methods *pdb = pdb_get_methods();
904 return pdb->enum_group_memberships(
905 pdb, mem_ctx, user,
906 pp_sids, pp_gids, p_num_groups);
907 }
908
909 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
910 TALLOC_CTX *mem_ctx,
911 struct samu *sampass)
912 {
913 struct group *grp;
914 gid_t gid;
915
916 if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
917 (grp = getgrgid(gid)) == NULL) {
918 return NT_STATUS_INVALID_PRIMARY_GROUP;
919 }
920
921 if (smb_set_primary_group(grp->gr_name,
922 pdb_get_username(sampass)) != 0) {
923 return NT_STATUS_ACCESS_DENIED;
924 }
925
926 return NT_STATUS_OK;
927 }
928
929 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
930 {
931 struct pdb_methods *pdb = pdb_get_methods();
932 return pdb->set_unix_primary_group(pdb, mem_ctx, user);
933 }
934
935 /*
936 * Helper function to see whether a user is in a group. We can't use
937 * user_in_group_sid here because this creates dependencies only smbd can
938 * fulfil.
939 */
940
941 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
942 const struct dom_sid *group_sid)
943 {
944 struct dom_sid *sids;
945 gid_t *gids;
946 uint32_t i, num_groups;
947
948 if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
949 &sids, &gids,
950 &num_groups))) {
951 return False;
952 }
953
954 for (i=0; i<num_groups; i++) {
955 if (dom_sid_equal(group_sid, &sids[i])) {
956 return True;
957 }
958 }
959 return False;
960 }
961
962 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
963 TALLOC_CTX *mem_ctx,
964 uint32_t group_rid,
965 uint32_t member_rid)
966 {
967 struct dom_sid group_sid, member_sid;
968 struct samu *account = NULL;
969 GROUP_MAP *map;
970 struct group *grp;
971 struct passwd *pwd;
972 const char *group_name;
973 uid_t uid;
974
975 map = talloc_zero(mem_ctx, GROUP_MAP);
976 if (!map) {
977 return NT_STATUS_NO_MEMORY;
978 }
979
980 /* coverity */
981 map->gid = (gid_t) -1;
982
983 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
984 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
985
986 if (!get_domain_group_from_sid(group_sid, map) ||
987 (map->gid == (gid_t)-1) ||
988 ((grp = getgrgid(map->gid)) == NULL)) {
989 return NT_STATUS_NO_SUCH_GROUP;
990 }
991
992 TALLOC_FREE(map);
993
994 group_name = talloc_strdup(mem_ctx, grp->gr_name);
995 if (group_name == NULL) {
996 return NT_STATUS_NO_MEMORY;
997 }
998
999 if ( !(account = samu_new( NULL )) ) {
1000 return NT_STATUS_NO_MEMORY;
1001 }
1002
1003 if (!pdb_getsampwsid(account, &member_sid) ||
1004 !sid_to_uid(&member_sid, &uid) ||
1005 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1006 return NT_STATUS_NO_SUCH_USER;
1007 }
1008
1009 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1010 return NT_STATUS_MEMBER_IN_GROUP;
1011 }
1012
1013 /*
1014 * ok, the group exist, the user exist, the user is not in the group,
1015 * we can (finally) add it to the group !
1016 */
1017
1018 smb_add_user_group(group_name, pwd->pw_name);
1019
1020 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1021 return NT_STATUS_ACCESS_DENIED;
1022 }
1023
1024 return NT_STATUS_OK;
1025 }
1026
1027 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1028 uint32_t member_rid)
1029 {
1030 struct pdb_methods *pdb = pdb_get_methods();
1031 return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
1032 }
1033
1034 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
1035 TALLOC_CTX *mem_ctx,
1036 uint32_t group_rid,
1037 uint32_t member_rid)
1038 {
1039 struct dom_sid group_sid, member_sid;
1040 struct samu *account = NULL;
1041 GROUP_MAP *map;
1042 struct group *grp;
1043 struct passwd *pwd;
1044 const char *group_name;
1045 uid_t uid;
1046
1047 map = talloc_zero(mem_ctx, GROUP_MAP);
1048 if (!map) {
1049 return NT_STATUS_NO_MEMORY;
1050 }
1051
1052 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1053 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1054
1055 if (!get_domain_group_from_sid(group_sid, map) ||
1056 (map->gid == (gid_t)-1) ||
1057 ((grp = getgrgid(map->gid)) == NULL)) {
1058 return NT_STATUS_NO_SUCH_GROUP;
1059 }
1060
1061 TALLOC_FREE(map);
1062
1063 group_name = talloc_strdup(mem_ctx, grp->gr_name);
1064 if (group_name == NULL) {
1065 return NT_STATUS_NO_MEMORY;
1066 }
1067
1068 if ( !(account = samu_new( NULL )) ) {
1069 return NT_STATUS_NO_MEMORY;
1070 }
1071
1072 if (!pdb_getsampwsid(account, &member_sid) ||
1073 !sid_to_uid(&member_sid, &uid) ||
1074 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1075 return NT_STATUS_NO_SUCH_USER;
1076 }
1077
1078 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1079 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1080 }
1081
1082 /*
1083 * ok, the group exist, the user exist, the user is in the group,
1084 * we can (finally) delete it from the group!
1085 */
1086
1087 smb_delete_user_group(group_name, pwd->pw_name);
1088
1089 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1090 return NT_STATUS_ACCESS_DENIED;
1091 }
1092
1093 return NT_STATUS_OK;
1094 }
1095
1096 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1097 uint32_t member_rid)
1098 {
1099 struct pdb_methods *pdb = pdb_get_methods();
1100 return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1101 }
1102
1103 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1104 {
1105 struct pdb_methods *pdb = pdb_get_methods();
1106 return pdb->create_alias(pdb, name, rid);
1107 }
1108
1109 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1110 {
1111 struct pdb_methods *pdb = pdb_get_methods();
1112 return pdb->delete_alias(pdb, sid);
1113 }
1114
1115 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1116 {
1117 struct pdb_methods *pdb = pdb_get_methods();
1118 return pdb->get_aliasinfo(pdb, sid, info);
1119 }
1120
1121 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1122 {
1123 struct pdb_methods *pdb = pdb_get_methods();
1124 return pdb->set_aliasinfo(pdb, sid, info);
1125 }
1126
1127 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1128 {
1129 struct pdb_methods *pdb = pdb_get_methods();
1130 return pdb->add_aliasmem(pdb, alias, member);
1131 }
1132
1133 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1134 {
1135 struct pdb_methods *pdb = pdb_get_methods();
1136 return pdb->del_aliasmem(pdb, alias, member);
1137 }
1138
1139 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1140 struct dom_sid **pp_members, size_t *p_num_members)
1141 {
1142 struct pdb_methods *pdb = pdb_get_methods();
1143 return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1144 p_num_members);
1145 }
1146
1147 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1148 const struct dom_sid *domain_sid,
1149 const struct dom_sid *members, size_t num_members,
1150 uint32_t **pp_alias_rids,
1151 size_t *p_num_alias_rids)
1152 {
1153 struct pdb_methods *pdb = pdb_get_methods();
1154 return pdb->enum_alias_memberships(pdb, mem_ctx,
1155 domain_sid,
1156 members, num_members,
1157 pp_alias_rids,
1158 p_num_alias_rids);
1159 }
1160
1161 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1162 int num_rids,
1163 uint32_t *rids,
1164 const char **names,
1165 enum lsa_SidType *attrs)
1166 {
1167 struct pdb_methods *pdb = pdb_get_methods();
1168 return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1169 }
1170
1171 /*
1172 * NOTE: pdb_lookup_names is currently (2007-01-12) not used anywhere
1173 * in the samba code.
1174 * Unlike _lsa_lookup_sids and _samr_lookup_rids, which eventually
1175 * also ask pdb_lookup_rids, thus looking up a bunch of rids at a time,
1176 * the pdb_ calls _lsa_lookup_names and _samr_lookup_names come
1177 * down to are pdb_getsampwnam and pdb_getgrnam instead of
1178 * pdb_lookup_names.
1179 * But in principle, it the call belongs to the API and might get
1180 * used in this context some day.
1181 */
1182 #if 0
1183 NTSTATUS pdb_lookup_names(const struct dom_sid *domain_sid,
1184 int num_names,
1185 const char **names,
1186 uint32_t *rids,
1187 enum lsa_SidType *attrs)
1188 {
1189 struct pdb_methods *pdb = pdb_get_methods();
1190 return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
1191 }
1192 #endif
1193
1194 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1195 {
1196 struct pdb_methods *pdb = pdb_get_methods();
1197 NTSTATUS status;
1198
1199 become_root();
1200 status = pdb->get_account_policy(pdb, type, value);
1201 unbecome_root();
1202
1203 return NT_STATUS_IS_OK(status);
1204 }
1205
1206 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1207 {
1208 struct pdb_methods *pdb = pdb_get_methods();
1209 NTSTATUS status;
1210
1211 become_root();
1212 status = pdb->set_account_policy(pdb, type, value);
1213 unbecome_root();
1214
1215 return NT_STATUS_IS_OK(status);
1216 }
1217
1218 bool pdb_get_seq_num(time_t *seq_num)
1219 {
1220 struct pdb_methods *pdb = pdb_get_methods();
1221 return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1222 }
1223
1224 bool pdb_uid_to_sid(uid_t uid, struct dom_sid *sid)
1225 {
1226 struct pdb_methods *pdb = pdb_get_methods();
1227 return pdb->uid_to_sid(pdb, uid, sid);
1228 }
1229
1230 bool pdb_gid_to_sid(gid_t gid, struct dom_sid *sid)
1231 {
1232 struct pdb_methods *pdb = pdb_get_methods();
1233 return pdb->gid_to_sid(pdb, gid, sid);
1234 }
1235
1236 bool pdb_sid_to_id(const struct dom_sid *sid, struct unixid *id)
1237 {
1238 struct pdb_methods *pdb = pdb_get_methods();
1239 return pdb->sid_to_id(pdb, sid, id);
1240 }
1241
1242 uint32_t pdb_capabilities(void)
1243 {
1244 struct pdb_methods *pdb = pdb_get_methods();
1245 return pdb->capabilities(pdb);
1246 }
1247
1248 /********************************************************************
1249 Allocate a new RID from the passdb backend. Verify that it is free
1250 by calling lookup_global_sam_rid() to verify that the RID is not
1251 in use. This handles servers that have existing users or groups
1252 with add RIDs (assigned from previous algorithmic mappings)
1253 ********************************************************************/
1254
1255 bool pdb_new_rid(uint32_t *rid)
1256 {
1257 struct pdb_methods *pdb = pdb_get_methods();
1258 const char *name = NULL;
1259 enum lsa_SidType type;
1260 uint32_t allocated_rid = 0;
1261 int i;
1262 TALLOC_CTX *ctx;
1263
1264 if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1265 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1266 "are active\n"));
1267 return False;
1268 }
1269
1270 if (algorithmic_rid_base() != BASE_RID) {
1271 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1272 "without algorithmic RIDs is chosen.\n"));
1273 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1274 "add', set the maximum used RID\n"));
1275 DEBUGADD(0, ("and remove the parameter\n"));
1276 return False;
1277 }
1278
1279 if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1280 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1281 return False;
1282 }
1283
1284 /* Attempt to get an unused RID (max tires is 250...yes that it is
1285 and arbitrary number I pulkled out of my head). -- jerry */
1286
1287 for ( i=0; allocated_rid==0 && i<250; i++ ) {
1288 /* get a new RID */
1289
1290 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1291 return False;
1292 }
1293
1294 /* validate that the RID is not in use */
1295
1296 if (lookup_global_sam_rid(ctx, allocated_rid, &name, &type, NULL, NULL)) {
1297 allocated_rid = 0;
1298 }
1299 }
1300
1301 TALLOC_FREE( ctx );
1302
1303 if ( allocated_rid == 0 ) {
1304 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1305 return False;
1306 }
1307
1308 *rid = allocated_rid;
1309
1310 return True;
1311 }
1312
1313 /***************************************************************
1314 Initialize the static context (at smbd startup etc).
1315
1316 If uninitialised, context will auto-init on first use.
1317 ***************************************************************/
1318
1319 bool initialize_password_db(bool reload, struct tevent_context *tevent_ctx)
1320 {
1321 pdb_tevent_ctx = tevent_ctx;
1322 return (pdb_get_methods_reload(reload) != NULL);
1323 }
1324
1325
1326 /***************************************************************************
1327 Default implementations of some functions.
1328 ****************************************************************************/
1329
1330 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1331 {
1332 return NT_STATUS_NO_SUCH_USER;
1333 }
1334
1335 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1336 {
1337 return NT_STATUS_NO_SUCH_USER;
1338 }
1339
1340 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1341 {
1342 return NT_STATUS_NOT_IMPLEMENTED;
1343 }
1344
1345 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1346 {
1347 return NT_STATUS_NOT_IMPLEMENTED;
1348 }
1349
1350 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1351 {
1352 return NT_STATUS_NOT_IMPLEMENTED;
1353 }
1354
1355 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1356 {
1357 return NT_STATUS_NOT_IMPLEMENTED;
1358 }
1359
1360 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1361 {
1362 /* Only the pdb_nds backend implements this, by
1363 * default just return ok. */
1364 return NT_STATUS_OK;
1365 }
1366
1367 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1368 {
1369 return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1370 }
1371
1372 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1373 {
1374 return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1375 }
1376
1377 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1378 {
1379 *seq_num = time(NULL);
1380 return NT_STATUS_OK;
1381 }
1382
1383 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1384 struct dom_sid *sid)
1385 {
1386 struct samu *sampw = NULL;
1387 struct passwd *unix_pw;
1388 bool ret;
1389
1390 unix_pw = getpwuid( uid );
1391
1392 if ( !unix_pw ) {
1393 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1394 "%lu\n", (unsigned long)uid));
1395 return False;
1396 }
1397
1398 if ( !(sampw = samu_new( NULL )) ) {
1399 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1400 return False;
1401 }
1402
1403 become_root();
1404 ret = NT_STATUS_IS_OK(
1405 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1406 unbecome_root();
1407
1408 if (!ret) {
1409 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1410 "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1411 TALLOC_FREE(sampw);
1412 return False;
1413 }
1414
1415 sid_copy(sid, pdb_get_user_sid(sampw));
1416
1417 TALLOC_FREE(sampw);
1418
1419 return True;
1420 }
1421
1422 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1423 struct dom_sid *sid)
1424 {
1425 GROUP_MAP *map;
1426
1427 map = talloc_zero(NULL, GROUP_MAP);
1428 if (!map) {
1429 return false;
1430 }
1431
1432 if (!NT_STATUS_IS_OK(methods->getgrgid(methods, map, gid))) {
1433 TALLOC_FREE(map);
1434 return false;
1435 }
1436
1437 sid_copy(sid, &map->sid);
1438 TALLOC_FREE(map);
1439 return true;
1440 }
1441
1442 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1443 const struct dom_sid *sid,
1444 struct unixid *id)
1445 {
1446 TALLOC_CTX *mem_ctx;
1447 bool ret = False;
1448 uint32_t rid;
1449 id->id = -1;
1450
1451 mem_ctx = talloc_new(NULL);
1452
1453 if (mem_ctx == NULL) {
1454 DEBUG(0, ("talloc_new failed\n"));
1455 return False;
1456 }
1457
1458 if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1459 const char *name;
1460 enum lsa_SidType type;
1461 uid_t uid;
1462 gid_t gid;
1463 /* Here we might have users as well as groups and aliases */
1464 ret = lookup_global_sam_rid(mem_ctx, rid, &name, &type, &uid, &gid);
1465 if (ret) {
1466 switch (type) {
1467 case SID_NAME_DOM_GRP:
1468 case SID_NAME_ALIAS:
1469 id->type = ID_TYPE_GID;
1470 id->id = gid;
1471 break;
1472 case SID_NAME_USER:
1473 id->type = ID_TYPE_UID;
1474 id->id = uid;
1475 break;
1476 default:
1477 DEBUG(5, ("SID %s is our domain, but is not mapped to a user or group (got %d)\n",
1478 sid_string_dbg(sid), type));
1479 ret = false;
1480 }
1481 } else {
1482 DEBUG(5, ("SID %s is or domain, but is unmapped\n",
1483 sid_string_dbg(sid)));
1484 }
1485 goto done;
1486 }
1487
1488 /* check for "Unix User" */
1489
1490 if ( sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid) ) {
1491 id->id = rid;
1492 id->type = ID_TYPE_UID;
1493 ret = True;
1494 goto done;
1495 }
1496
1497 /* check for "Unix Group" */
1498
1499 if ( sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid) ) {
1500 id->id = rid;
1501 id->type = ID_TYPE_GID;
1502 ret = True;
1503 goto done;
1504 }
1505
1506 /* BUILTIN */
1507
1508 if (sid_check_is_in_builtin(sid) ||
1509 sid_check_is_in_wellknown_domain(sid)) {
1510 /* Here we only have aliases */
1511 GROUP_MAP *map;
1512
1513 map = talloc_zero(mem_ctx, GROUP_MAP);
1514 if (!map) {
1515 ret = false;
1516 goto done;
1517 }
1518
1519 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, map, *sid))) {
1520 DEBUG(10, ("Could not find map for sid %s\n",
1521 sid_string_dbg(sid)));
1522 goto done;
1523 }
1524 if ((map->sid_name_use != SID_NAME_ALIAS) &&
1525 (map->sid_name_use != SID_NAME_WKN_GRP)) {
1526 DEBUG(10, ("Map for sid %s is a %s, expected an "
1527 "alias\n", sid_string_dbg(sid),
1528 sid_type_lookup(map->sid_name_use)));
1529 goto done;
1530 }
1531
1532 id->id = map->gid;
1533 id->type = ID_TYPE_GID;
1534 ret = True;
1535 goto done;
1536 }
1537
1538 DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1539 sid_string_dbg(sid)));
1540
1541 done:
1542
1543 TALLOC_FREE(mem_ctx);
1544 return ret;
1545 }
1546
1547 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num)
1548 {
1549 struct group *grp;
1550 char **gr;
1551 struct passwd *pwd;
1552 bool winbind_env;
1553 bool ret = False;
1554
1555 *pp_uids = NULL;
1556 *p_num = 0;
1557
1558 /* We only look at our own sam, so don't care about imported stuff */
1559 winbind_env = winbind_env_set();
1560 (void)winbind_off();
1561
1562 if ((grp = getgrgid(gid)) == NULL) {
1563 /* allow winbindd lookups, but only if they weren't already disabled */
1564 goto done;
1565 }
1566
1567 /* Primary group members */
1568 setpwent();
1569 while ((pwd = getpwent()) != NULL) {
1570 if (pwd->pw_gid == gid) {
1571 if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1572 pp_uids, p_num)) {
1573 goto done;
1574 }
1575 }
1576 }
1577 endpwent();
1578
1579 /* Secondary group members */
1580 for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1581 struct passwd *pw = getpwnam(*gr);
1582
1583 if (pw == NULL)
1584 continue;
1585 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1586 goto done;
1587 }
1588 }
1589
1590 ret = True;
1591
1592 done:
1593
1594 /* allow winbindd lookups, but only if they weren't already disabled */
1595 if (!winbind_env) {
1596 (void)winbind_on();
1597 }
1598
1599 return ret;
1600 }
1601
1602 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1603 TALLOC_CTX *mem_ctx,
1604 const struct dom_sid *group,
1605 uint32_t **pp_member_rids,
1606 size_t *p_num_members)
1607 {
1608 gid_t gid;
1609 uid_t *uids;
1610 uint32_t i, num_uids;
1611
1612 *pp_member_rids = NULL;
1613 *p_num_members = 0;
1614
1615 if (!sid_to_gid(group, &gid))
1616 return NT_STATUS_NO_SUCH_GROUP;
1617
1618 if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1619 return NT_STATUS_NO_SUCH_GROUP;
1620
1621 if (num_uids == 0)
1622 return NT_STATUS_OK;
1623
1624 *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids);
1625
1626 for (i=0; i<num_uids; i++) {
1627 struct dom_sid sid;
1628
1629 uid_to_sid(&sid, uids[i]);
1630
1631 if (!sid_check_is_in_our_domain(&sid)) {
1632 DEBUG(5, ("Inconsistent SAM -- group member uid not "
1633 "in our domain\n"));
1634 continue;
1635 }
1636
1637 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1638 *p_num_members += 1;
1639 }
1640
1641 return NT_STATUS_OK;
1642 }
1643
1644 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1645 TALLOC_CTX *mem_ctx,
1646 struct samu *user,
1647 struct dom_sid **pp_sids,
1648 gid_t **pp_gids,
1649 uint32_t *p_num_groups)
1650 {
1651 size_t i;
1652 gid_t gid;
1653 struct passwd *pw;
1654 const char *username = pdb_get_username(user);
1655
1656
1657 /* Ignore the primary group SID. Honor the real Unix primary group.
1658 The primary group SID is only of real use to Windows clients */
1659
1660 if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
1661 return NT_STATUS_NO_SUCH_USER;
1662 }
1663
1664 gid = pw->pw_gid;
1665
1666 TALLOC_FREE( pw );
1667
1668 if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1669 return NT_STATUS_NO_SUCH_USER;
1670 }
1671
1672 if (*p_num_groups == 0) {
1673 smb_panic("primary group missing");
1674 }
1675
1676 *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups);
1677
1678 if (*pp_sids == NULL) {
1679 TALLOC_FREE(*pp_gids);
1680 return NT_STATUS_NO_MEMORY;
1681 }
1682
1683 for (i=0; i<*p_num_groups; i++) {
1684 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1685 }
1686
1687 return NT_STATUS_OK;
1688 }
1689
1690 /*******************************************************************
1691 Look up a rid in the SAM we're responsible for (i.e. passdb)
1692 ********************************************************************/
1693
1694 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1695 const char **name,
1696 enum lsa_SidType *psid_name_use,
1697 uid_t *uid, gid_t *gid)
1698 {
1699 struct samu *sam_account = NULL;
1700 GROUP_MAP *map = NULL;
1701 bool ret;
1702 struct dom_sid sid;
1703
1704 *psid_name_use = SID_NAME_UNKNOWN;
1705
1706 DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1707 (unsigned int)rid));
1708
1709 sid_compose(&sid, get_global_sam_sid(), rid);
1710
1711 /* see if the passdb can help us with the name of the user */
1712
1713 if ( !(sam_account = samu_new( NULL )) ) {
1714 return False;
1715 }
1716
1717 map = talloc_zero(mem_ctx, GROUP_MAP);
1718 if (!map) {
1719 return false;
1720 }
1721
1722 /* BEING ROOT BLOCK */
1723 become_root();
1724 ret = pdb_getsampwsid(sam_account, &sid);
1725 if (!ret) {
1726 TALLOC_FREE(sam_account);
1727 ret = pdb_getgrsid(map, sid);
1728 }
1729 unbecome_root();
1730 /* END BECOME_ROOT BLOCK */
1731
1732 if (sam_account || !ret) {
1733 TALLOC_FREE(map);
1734 }
1735
1736 if (sam_account) {
1737 struct passwd *pw;
1738
1739 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1740 if (!*name) {
1741 TALLOC_FREE(sam_account);
1742 return False;
1743 }
1744
1745 *psid_name_use = SID_NAME_USER;
1746
1747 TALLOC_FREE(sam_account);
1748
1749 if (uid == NULL) {
1750 return True;
1751 }
1752
1753 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1754 if (pw == NULL) {
1755 return False;
1756 }
1757 *uid = pw->pw_uid;
1758 TALLOC_FREE(pw);
1759 return True;
1760
1761 } else if (map && (map->gid != (gid_t)-1)) {
1762
1763 /* do not resolve SIDs to a name unless there is a valid
1764 gid associated with it */
1765
1766 *name = talloc_steal(mem_ctx, map->nt_name);
1767 *psid_name_use = map->sid_name_use;
1768
1769 if (gid) {
1770 *gid = map->gid;
1771 }
1772
1773 TALLOC_FREE(map);
1774 return True;
1775 }
1776
1777 TALLOC_FREE(map);
1778
1779 /* Windows will always map RID 513 to something. On a non-domain
1780 controller, this gets mapped to SERVER\None. */
1781
1782 if (uid || gid) {
1783 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1784 return False;
1785 }
1786
1787 if ( rid == DOMAIN_RID_USERS ) {
1788 *name = talloc_strdup(mem_ctx, "None" );
1789 *psid_name_use = SID_NAME_DOM_GRP;
1790
1791 return True;
1792 }
1793
1794 return False;
1795 }
1796
1797 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1798 const struct dom_sid *domain_sid,
1799 int num_rids,
1800 uint32_t *rids,
1801 const char **names,
1802 enum lsa_SidType *attrs)
1803 {
1804 int i;
1805 NTSTATUS result;
1806 bool have_mapped = False;
1807 bool have_unmapped = False;
1808
1809 if (sid_check_is_builtin(domain_sid)) {
1810
1811 for (i=0; i<num_rids; i++) {
1812 const char *name;
1813
1814 if (lookup_builtin_rid(names, rids[i], &name)) {
1815 attrs[i] = SID_NAME_ALIAS;
1816 names[i] = name;
1817 DEBUG(5,("lookup_rids: %s:%d\n",
1818 names[i], attrs[i]));
1819 have_mapped = True;
1820 } else {
1821 have_unmapped = True;
1822 attrs[i] = SID_NAME_UNKNOWN;
1823 }
1824 }
1825 goto done;
1826 }
1827
1828 /* Should not happen, but better check once too many */
1829 if (!sid_check_is_domain(domain_sid)) {
1830 return NT_STATUS_INVALID_HANDLE;
1831 }
1832
1833 for (i = 0; i < num_rids; i++) {
1834 const char *name;
1835
1836 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1837 NULL, NULL)) {
1838 if (name == NULL) {
1839 return NT_STATUS_NO_MEMORY;
1840 }
1841 names[i] = name;
1842 DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1843 have_mapped = True;
1844 } else {
1845 have_unmapped = True;
1846 attrs[i] = SID_NAME_UNKNOWN;
1847 }
1848 }
1849
1850 done:
1851
1852 result = NT_STATUS_NONE_MAPPED;
1853
1854 if (have_mapped)
1855 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1856
1857 return result;
1858 }
1859
1860 #if 0
1861 static NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1862 const struct dom_sid *domain_sid,
1863 int num_names,
1864 const char **names,
1865 uint32_t *rids,
1866 enum lsa_SidType *attrs)
1867 {
1868 int i;
1869 NTSTATUS result;
1870 bool have_mapped = False;
1871 bool have_unmapped = False;
1872
1873 if (sid_check_is_builtin(domain_sid)) {
1874
1875 for (i=0; i<num_names; i++) {
1876 uint32_t rid;
1877
1878 if (lookup_builtin_name(names[i], &rid)) {
1879 attrs[i] = SID_NAME_ALIAS;
1880 rids[i] = rid;
1881 DEBUG(5,("lookup_rids: %s:%d\n",
1882 names[i], attrs[i]));
1883 have_mapped = True;
1884 } else {
1885 have_unmapped = True;
1886 attrs[i] = SID_NAME_UNKNOWN;
1887 }
1888 }
1889 goto done;
1890 }
1891
1892 /* Should not happen, but better check once too many */
1893 if (!sid_check_is_domain(domain_sid)) {
1894 return NT_STATUS_INVALID_HANDLE;
1895 }
1896
1897 for (i = 0; i < num_names; i++) {
1898 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1899 DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1900 rids[i], attrs[i]));
1901 have_mapped = True;
1902 } else {
1903 have_unmapped = True;
1904 attrs[i] = SID_NAME_UNKNOWN;
1905 }
1906 }
1907
1908 done:
1909
1910 result = NT_STATUS_NONE_MAPPED;
1911
1912 if (have_mapped)
1913 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1914
1915 return result;
1916 }
1917 #endif
1918
1919 static int pdb_search_destructor(struct pdb_search *search)
1920 {
1921 if ((!search->search_ended) && (search->search_end != NULL)) {
1922 search->search_end(search);
1923 }
1924 return 0;
1925 }
1926
1927 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1928 enum pdb_search_type type)
1929 {
1930 struct pdb_search *result;
1931
1932 result = talloc(mem_ctx, struct pdb_search);
1933 if (result == NULL) {
1934 DEBUG(0, ("talloc failed\n"));
1935 return NULL;
1936 }
1937
1938 result->type = type;
1939 result->cache = NULL;
1940 result->num_entries = 0;
1941 result->cache_size = 0;
1942 result->search_ended = False;
1943 result->search_end = NULL;
1944
1945 /* Segfault appropriately if not initialized */
1946 result->next_entry = NULL;
1947 result->search_end = NULL;
1948
1949 talloc_set_destructor(result, pdb_search_destructor);
1950
1951 return result;
1952 }
1953
1954 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1955 uint16_t acct_flags,
1956 const char *account_name,
1957 const char *fullname,
1958 const char *description,
1959 struct samr_displayentry *entry)
1960 {
1961 entry->rid = rid;
1962 entry->acct_flags = acct_flags;
1963
1964 if (account_name != NULL)
1965 entry->account_name = talloc_strdup(mem_ctx, account_name);
1966 else
1967 entry->account_name = "";
1968
1969 if (fullname != NULL)
1970 entry->fullname = talloc_strdup(mem_ctx, fullname);
1971 else
1972 entry->fullname = "";
1973
1974 if (description != NULL)
1975 entry->description = talloc_strdup(mem_ctx, description);
1976 else
1977 entry->description = "";
1978 }
1979
1980 struct group_search {
1981 GROUP_MAP **groups;
1982 size_t num_groups, current_group;
1983 };
1984
1985 static bool next_entry_groups(struct pdb_search *s,
1986 struct samr_displayentry *entry)
1987 {
1988 struct group_search *state = (struct group_search *)s->private_data;
1989 uint32_t rid;
1990 GROUP_MAP *map;
1991
1992 if (state->current_group == state->num_groups)
1993 return False;
1994
1995 map = state->groups[state->current_group];
1996
1997 sid_peek_rid(&map->sid, &rid);
1998
1999 fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
2000
2001 state->current_group += 1;
2002 return True;
2003 }
2004
2005 static void search_end_groups(struct pdb_search *search)
2006 {
2007 struct group_search *state =
2008 (struct group_search *)search->private_data;
2009 TALLOC_FREE(state->groups);
2010 }
2011
2012 static bool pdb_search_grouptype(struct pdb_methods *methods,
2013 struct pdb_search *search,
2014 const struct dom_sid *sid, enum lsa_SidType type)
2015 {
2016 struct group_search *state;
2017
2018 state = talloc_zero(search, struct group_search);
2019 if (state == NULL) {
2020 DEBUG(0, ("talloc failed\n"));
2021 return False;
2022 }
2023
2024 if (!NT_STATUS_IS_OK(methods->enum_group_mapping(methods, sid, type,
2025 &state->groups, &state->num_groups,
2026 True))) {
2027 DEBUG(0, ("Could not enum groups\n"));
2028 return False;
2029 }
2030
2031 state->current_group = 0;
2032 search->private_data = state;
2033 search->next_entry = next_entry_groups;
2034 search->search_end = search_end_groups;
2035 return True;
2036 }
2037
2038 static bool pdb_default_search_groups(struct pdb_methods *methods,
2039 struct pdb_search *search)
2040 {
2041 return pdb_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
2042 }
2043
2044 static bool pdb_default_search_aliases(struct pdb_methods *methods,
2045 struct pdb_search *search,
2046 const struct dom_sid *sid)
2047 {
2048
2049 return pdb_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
2050 }
2051
2052 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
2053 uint32_t idx)
2054 {
2055 if (idx < search->num_entries)
2056 return &search->cache[idx];
2057
2058 if (search->search_ended)
2059 return NULL;
2060
2061 while (idx >= search->num_entries) {
2062 struct samr_displayentry entry;
2063
2064 if (!search->next_entry(search, &entry)) {
2065 search->search_end(search);
2066 search->search_ended = True;
2067 break;
2068 }
2069
2070 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
2071 entry, &search->cache, &search->num_entries,
2072 &search->cache_size);
2073 }
2074
2075 return (search->num_entries > idx) ? &search->cache[idx] : NULL;
2076 }
2077
2078 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
2079 {
2080 struct pdb_methods *pdb = pdb_get_methods();
2081 struct pdb_search *result;
2082
2083 result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
2084 if (result == NULL) {
2085 return NULL;
2086 }
2087
2088 if (!pdb->search_users(pdb, result, acct_flags)) {
2089 TALLOC_FREE(result);
2090 return NULL;
2091 }
2092 return result;
2093 }
2094
2095 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
2096 {
2097 struct pdb_methods *pdb = pdb_get_methods();
2098 struct pdb_search *result;
2099
2100 result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
2101 if (result == NULL) {
2102 return NULL;
2103 }
2104
2105 if (!pdb->search_groups(pdb, result)) {
2106 TALLOC_FREE(result);
2107 return NULL;
2108 }
2109 return result;
2110 }
2111
2112 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
2113 {
2114 struct pdb_methods *pdb = pdb_get_methods();
2115 struct pdb_search *result;
2116
2117 if (pdb == NULL) return NULL;
2118
2119 result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
2120 if (result == NULL) {
2121 return NULL;
2122 }
2123
2124 if (!pdb->search_aliases(pdb, result, sid)) {
2125 TALLOC_FREE(result);
2126 return NULL;
2127 }
2128 return result;
2129 }
2130
2131 uint32_t pdb_search_entries(struct pdb_search *search,
2132 uint32_t start_idx, uint32_t max_entries,
2133 struct samr_displayentry **result)
2134 {
2135 struct samr_displayentry *end_entry;
2136 uint32_t end_idx = start_idx+max_entries-1;
2137
2138 /* The first entry needs to be searched after the last. Otherwise the
2139 * first entry might have moved due to a realloc during the search for
2140 * the last entry. */
2141
2142 end_entry = pdb_search_getentry(search, end_idx);
2143 *result = pdb_search_getentry(search, start_idx);
2144
2145 if (end_entry != NULL)
2146 return max_entries;
2147
2148 if (start_idx >= search->num_entries)
2149 return 0;
2150
2151 return search->num_entries - start_idx;
2152 }
2153
2154 /*******************************************************************
2155 trustdom methods
2156 *******************************************************************/
2157
2158 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2159 time_t *pass_last_set_time)
2160 {
2161 struct pdb_methods *pdb = pdb_get_methods();
2162 return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2163 pass_last_set_time);
2164 }
2165
2166 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2167 const struct dom_sid *sid)
2168 {
2169 struct pdb_methods *pdb = pdb_get_methods();
2170 return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2171 }
2172
2173 bool pdb_del_trusteddom_pw(const char *domain)
2174 {
2175 struct pdb_methods *pdb = pdb_get_methods();
2176 return pdb->del_trusteddom_pw(pdb, domain);
2177 }
2178
2179 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2180 struct trustdom_info ***domains)
2181 {
2182 struct pdb_methods *pdb = pdb_get_methods();
2183 return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2184 }
2185
2186 /*******************************************************************
2187 the defaults for trustdom methods:
2188 these simply call the original passdb/secrets.c actions,
2189 to be replaced by pdb_ldap.
2190 *******************************************************************/
2191
2192 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2193 const char *domain,
2194 char** pwd,
2195 struct dom_sid *sid,
2196 time_t *pass_last_set_time)
2197 {
2198 return secrets_fetch_trusted_domain_password(domain, pwd,
2199 sid, pass_last_set_time);
2200
2201 }
2202
2203 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2204 const char* domain,
2205 const char* pwd,
2206 const struct dom_sid *sid)
2207 {
2208 return secrets_store_trusted_domain_password(domain, pwd, sid);
2209 }
2210
2211 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2212 const char *domain)
2213 {
2214 return trusted_domain_password_delete(domain);
2215 }
2216
2217 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2218 TALLOC_CTX *mem_ctx,
2219 uint32_t *num_domains,
2220 struct trustdom_info ***domains)
2221 {
2222 return secrets_trusted_domains(mem_ctx, num_domains, domains);
2223 }
2224
2225 /*******************************************************************
2226 trusted_domain methods
2227 *******************************************************************/
2228
2229 NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain,
2230 struct pdb_trusted_domain **td)
2231 {
2232 struct pdb_methods *pdb = pdb_get_methods();
2233 return pdb->get_trusted_domain(pdb, mem_ctx, domain, td);
2234 }
2235
2236 NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid,
2237 struct pdb_trusted_domain **td)
2238 {
2239 struct pdb_methods *pdb = pdb_get_methods();
2240 return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td);
2241 }
2242
2243 NTSTATUS pdb_set_trusted_domain(const char* domain,
2244 const struct pdb_trusted_domain *td)
2245 {
2246 struct pdb_methods *pdb = pdb_get_methods();
2247 return pdb->set_trusted_domain(pdb, domain, td);
2248 }
2249
2250 NTSTATUS pdb_del_trusted_domain(const char *domain)
2251 {
2252 struct pdb_methods *pdb = pdb_get_methods();
2253 return pdb->del_trusted_domain(pdb, domain);
2254 }
2255
2256 NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2257 struct pdb_trusted_domain ***domains)
2258 {
2259 struct pdb_methods *pdb = pdb_get_methods();
2260 return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains);
2261 }
2262
2263 static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods,
2264 TALLOC_CTX *mem_ctx,
2265 const char *domain,
2266 struct pdb_trusted_domain **td)
2267 {
2268 struct trustAuthInOutBlob taiob;
2269 struct AuthenticationInformation aia;
2270 struct pdb_trusted_domain *tdom;
2271 enum ndr_err_code ndr_err;
2272 time_t last_set_time;
2273 char *pwd;
2274 bool ok;
2275
2276 tdom = talloc(mem_ctx, struct pdb_trusted_domain);
2277 if (!tdom) {
2278 return NT_STATUS_NO_MEMORY;
2279 }
2280
2281 tdom->domain_name = talloc_strdup(tdom, domain);
2282 tdom->netbios_name = talloc_strdup(tdom, domain);
2283 if (!tdom->domain_name || !tdom->netbios_name) {
2284 talloc_free(tdom);
2285 return NT_STATUS_NO_MEMORY;
2286 }
2287
2288 tdom->trust_auth_incoming = data_blob_null;
2289
2290 ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier,
2291 &last_set_time);
2292 if (!ok) {
2293 talloc_free(tdom);
2294 return NT_STATUS_UNSUCCESSFUL;
2295 }
2296
2297 ZERO_STRUCT(taiob);
2298 ZERO_STRUCT(aia);
2299 taiob.count = 1;
2300 taiob.current.count = 1;
2301 taiob.current.array = &aia;
2302 unix_to_nt_time(&aia.LastUpdateTime, last_set_time);
2303 aia.AuthType = TRUST_AUTH_TYPE_CLEAR;
2304 aia.AuthInfo.clear.password = (uint8_t *) pwd;
2305 aia.AuthInfo.clear.size = strlen(pwd);
2306 taiob.previous.count = 0;
2307 taiob.previous.array = NULL;
2308
2309 ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing,
2310 tdom, &taiob,
2311 (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
2312 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2313 talloc_free(tdom);
2314 return NT_STATUS_UNSUCCESSFUL;
2315 }
2316
2317 tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND;
2318 tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL;
2319 tdom->trust_attributes = 0;
2320 tdom->trust_forest_trust_info = data_blob_null;
2321
2322 *td = tdom;
2323 return NT_STATUS_OK;
2324 }
2325
2326 static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods,
2327 TALLOC_CTX *mem_ctx,
2328 struct dom_sid *sid,
2329 struct pdb_trusted_domain **td)
2330 {
2331 return NT_STATUS_NOT_IMPLEMENTED;
2332 }
2333
2334 #define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0)
2335
2336 static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods,
2337 const char* domain,
2338 const struct pdb_trusted_domain *td)
2339 {
2340 struct trustAuthInOutBlob taiob;
2341 struct AuthenticationInformation *aia;
2342 enum ndr_err_code ndr_err;
2343 char *pwd;
2344 bool ok;
2345
2346 if (td->trust_attributes != 0 ||
2347 td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL ||
2348 td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND ||
2349 !IS_NULL_DATA_BLOB(td->trust_auth_incoming) ||
2350 !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) {
2351 return NT_STATUS_NOT_IMPLEMENTED;
2352 }
2353
2354 ZERO_STRUCT(taiob);
2355 ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(),
2356 &taiob,
2357 (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2358 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2359 return NT_STATUS_UNSUCCESSFUL;
2360 }
2361
2362 aia = (struct AuthenticationInformation *) taiob.current.array;
2363
2364 if (taiob.count != 1 || taiob.current.count != 1 ||
2365 taiob.previous.count != 0 ||
2366 aia->AuthType != TRUST_AUTH_TYPE_CLEAR) {
2367 return NT_STATUS_NOT_IMPLEMENTED;
2368 }
2369
2370 pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password,
2371 aia->AuthInfo.clear.size);
2372 if (!pwd) {
2373 return NT_STATUS_NO_MEMORY;
2374 }
2375
2376 ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier);
2377 if (!ok) {
2378 return NT_STATUS_UNSUCCESSFUL;
2379 }
2380
2381 return NT_STATUS_OK;
2382 }
2383
2384 static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods,
2385 const char *domain)
2386 {
2387 return NT_STATUS_NOT_IMPLEMENTED;
2388 }
2389
2390 static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods,
2391 TALLOC_CTX *mem_ctx,
2392 uint32_t *num_domains,
2393 struct pdb_trusted_domain ***domains)
2394 {
2395 return NT_STATUS_NOT_IMPLEMENTED;
2396 }
2397
2398 static struct pdb_domain_info *pdb_default_get_domain_info(
2399 struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2400 {
2401 return NULL;
2402 }
2403
2404 /*******************************************************************
2405 secret methods
2406 *******************************************************************/
2407
2408 NTSTATUS pdb_get_secret(TALLOC_CTX *mem_ctx,
2409 const char *secret_name,
2410 DATA_BLOB *secret_current,
2411 NTTIME *secret_current_lastchange,
2412 DATA_BLOB *secret_old,
2413 NTTIME *secret_old_lastchange,
2414 struct security_descriptor **sd)
2415 {
2416 struct pdb_methods *pdb = pdb_get_methods();
2417 return pdb->get_secret(pdb, mem_ctx, secret_name,
2418 secret_current, secret_current_lastchange,
2419 secret_old, secret_old_lastchange,
2420 sd);
2421 }
2422
2423 NTSTATUS pdb_set_secret(const char *secret_name,
2424 DATA_BLOB *secret_current,
2425 DATA_BLOB *secret_old,
2426 struct security_descriptor *sd)
2427 {
2428 struct pdb_methods *pdb = pdb_get_methods();
2429 return pdb->set_secret(pdb, secret_name,
2430 secret_current,
2431 secret_old,
2432 sd);
2433 }
2434
2435 NTSTATUS pdb_delete_secret(const char *secret_name)
2436 {
2437 struct pdb_methods *pdb = pdb_get_methods();
2438 return pdb->delete_secret(pdb, secret_name);
2439 }
2440
2441 static NTSTATUS pdb_default_get_secret(struct pdb_methods *methods,
2442 TALLOC_CTX *mem_ctx,
2443 const char *secret_name,
2444 DATA_BLOB *secret_current,
2445 NTTIME *secret_current_lastchange,
2446 DATA_BLOB *secret_old,
2447 NTTIME *secret_old_lastchange,
2448 struct security_descriptor **sd)
2449 {
2450 return lsa_secret_get(mem_ctx, secret_name,
2451 secret_current,
2452 secret_current_lastchange,
2453 secret_old,
2454 secret_old_lastchange,
2455 sd);
2456 }
2457
2458 static NTSTATUS pdb_default_set_secret(struct pdb_methods *methods,
2459 const char *secret_name,
2460 DATA_BLOB *secret_current,
2461 DATA_BLOB *secret_old,
2462 struct security_descriptor *sd)
2463 {
2464 return lsa_secret_set(secret_name,
2465 secret_current,
2466 secret_old,
2467 sd);
2468 }
2469
2470 static NTSTATUS pdb_default_delete_secret(struct pdb_methods *methods,
2471 const char *secret_name)
2472 {
2473 return lsa_secret_delete(secret_name);
2474 }
2475
2476 /*******************************************************************
2477 Create a pdb_methods structure and initialize it with the default
2478 operations. In this way a passdb module can simply implement
2479 the functionality it cares about. However, normally this is done
2480 in groups of related functions.
2481 *******************************************************************/
2482
2483 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2484 {
2485 /* allocate memory for the structure as its own talloc CTX */
2486
2487 *methods = talloc_zero(NULL, struct pdb_methods);
2488 if (*methods == NULL) {
2489 return NT_STATUS_NO_MEMORY;
2490 }
2491
2492 (*methods)->get_domain_info = pdb_default_get_domain_info;
2493 (*methods)->getsampwnam = pdb_default_getsampwnam;
2494 (*methods)->getsampwsid = pdb_default_getsampwsid;
2495 (*methods)->create_user = pdb_default_create_user;
2496 (*methods)->delete_user = pdb_default_delete_user;
2497 (*methods)->add_sam_account = pdb_default_add_sam_account;
2498 (*methods)->update_sam_account = pdb_default_update_sam_account;
2499 (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2500 (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2501 (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2502
2503 (*methods)->getgrsid = pdb_default_getgrsid;
2504 (*methods)->getgrgid = pdb_default_getgrgid;
2505 (*methods)->getgrnam = pdb_default_getgrnam;
2506 (*methods)->create_dom_group = pdb_default_create_dom_group;
2507 (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2508 (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2509 (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2510 (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2511 (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2512 (*methods)->enum_group_members = pdb_default_enum_group_members;
2513 (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2514 (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2515 (*methods)->add_groupmem = pdb_default_add_groupmem;
2516 (*methods)->del_groupmem = pdb_default_del_groupmem;
2517 (*methods)->create_alias = pdb_default_create_alias;
2518 (*methods)->delete_alias = pdb_default_delete_alias;
2519 (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2520 (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2521 (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2522 (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2523 (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2524 (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2525 (*methods)->lookup_rids = pdb_default_lookup_rids;
2526 (*methods)->get_account_policy = pdb_default_get_account_policy;
2527 (*methods)->set_account_policy = pdb_default_set_account_policy;
2528 (*methods)->get_seq_num = pdb_default_get_seq_num;
2529 (*methods)->uid_to_sid = pdb_default_uid_to_sid;
2530 (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2531 (*methods)->sid_to_id = pdb_default_sid_to_id;
2532
2533 (*methods)->search_groups = pdb_default_search_groups;
2534 (*methods)->search_aliases = pdb_default_search_aliases;
2535
2536 (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2537 (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2538 (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2539 (*methods)->enum_trusteddoms = pdb_default_enum_trusteddoms;
2540
2541 (*methods)->get_trusted_domain = pdb_default_get_trusted_domain;
2542 (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid;
2543 (*methods)->set_trusted_domain = pdb_default_set_trusted_domain;
2544 (*methods)->del_trusted_domain = pdb_default_del_trusted_domain;
2545 (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains;
2546
2547 (*methods)->get_secret = pdb_default_get_secret;
2548 (*methods)->set_secret = pdb_default_set_secret;
2549 (*methods)->delete_secret = pdb_default_delete_secret;
2550
2551 return NT_STATUS_OK;
2552 }
reg import