?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Fix bug 8920, null dereference
[Samba/gebeck_regimport.git] / source3 / passdb / pdb_interface.c
blob5931dde2d88edebf3b95bfe8e17961dcb4055fd6
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 if (pdb->free_private_data != NULL) {
199 pdb->free_private_data( &(pdb->private_data) );
200 }
201 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
202 return NULL;
203 }
204 }
205
206 if ( !pdb ) {
207 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
208 return NULL;
209 }
210 }
211
212 return pdb;
213 }
214
215 static struct pdb_methods *pdb_get_methods(void)
216 {
217 struct pdb_methods *pdb;
218
219 pdb = pdb_get_methods_reload(false);
220 if (!pdb) {
221 char *msg = NULL;
222 if (asprintf(&msg, "pdb_get_methods: "
223 "failed to get pdb methods for backend %s\n",
224 lp_passdb_backend()) > 0) {
225 smb_panic(msg);
226 } else {
227 smb_panic("pdb_get_methods");
228 }
229 }
230
231 return pdb;
232 }
233
234 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
235 {
236 struct pdb_methods *pdb = pdb_get_methods();
237 return pdb->get_domain_info(pdb, mem_ctx);
238 }
239
240 /**
241 * @brief Check if the user account has been locked out and try to unlock it.
242 *
243 * If the user has been automatically locked out and a lockout duration is set,
244 * then check if we can unlock the account and reset the bad password values.
245 *
246 * @param[in] sampass The sam user to check.
247 *
248 * @return True if the function was successfull, false on an error.
249 */
250 static bool pdb_try_account_unlock(struct samu *sampass)
251 {
252 uint32_t acb_info = pdb_get_acct_ctrl(sampass);
253
254 if ((acb_info & ACB_NORMAL) && (acb_info & ACB_AUTOLOCK)) {
255 uint32_t lockout_duration;
256 time_t bad_password_time;
257 time_t now = time(NULL);
258 bool ok;
259
260 ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION,
261 &lockout_duration);
262 if (!ok) {
263 DEBUG(0, ("pdb_try_account_unlock: "
264 "pdb_get_account_policy failed.\n"));
265 return false;
266 }
267
268 if (lockout_duration == (uint32_t) -1 ||
269 lockout_duration == 0) {
270 DEBUG(9, ("pdb_try_account_unlock: No reset duration, "
271 "can't reset autolock\n"));
272 return false;
273 }
274 lockout_duration *= 60;
275
276 bad_password_time = pdb_get_bad_password_time(sampass);
277 if (bad_password_time == (time_t) 0) {
278 DEBUG(2, ("pdb_try_account_unlock: Account %s "
279 "administratively locked out "
280 "with no bad password "
281 "time. Leaving locked out.\n",
282 pdb_get_username(sampass)));
283 return true;
284 }
285
286 if ((bad_password_time +
287 convert_uint32_t_to_time_t(lockout_duration)) < now) {
288 NTSTATUS status;
289
290 pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK,
291 PDB_CHANGED);
292 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
293 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
294
295 become_root();
296 status = pdb_update_sam_account(sampass);
297 unbecome_root();
298 if (!NT_STATUS_IS_OK(status)) {
299 DEBUG(0, ("_samr_OpenUser: Couldn't "
300 "update account %s - %s\n",
301 pdb_get_username(sampass),
302 nt_errstr(status)));
303 return false;
304 }
305 }
306 }
307
308 return true;
309 }
310
311 /**
312 * @brief Get a sam user structure by the given username.
313 *
314 * This functions also checks if the account has been automatically locked out
315 * and unlocks it if a lockout duration time has been defined and the time has
316 * elapsed.
317 *
318 * @param[in] sam_acct The sam user structure to fill.
319 *
320 * @param[in] username The username to look for.
321 *
322 * @return True on success, false on error.
323 */
324 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
325 {
326 struct pdb_methods *pdb = pdb_get_methods();
327 struct samu *for_cache;
328 const struct dom_sid *user_sid;
329 NTSTATUS status;
330 bool ok;
331
332 status = pdb->getsampwnam(pdb, sam_acct, username);
333 if (!NT_STATUS_IS_OK(status)) {
334 return false;
335 }
336
337 ok = pdb_try_account_unlock(sam_acct);
338 if (!ok) {
339 DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n",
340 username));
341 }
342
343 for_cache = samu_new(NULL);
344 if (for_cache == NULL) {
345 return False;
346 }
347
348 if (!pdb_copy_sam_account(for_cache, sam_acct)) {
349 TALLOC_FREE(for_cache);
350 return False;
351 }
352
353 user_sid = pdb_get_user_sid(for_cache);
354
355 memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
356 data_blob_const(user_sid, sizeof(*user_sid)),
357 &for_cache);
358
359 return True;
360 }
361
362 /**********************************************************************
363 **********************************************************************/
364
365 static bool guest_user_info( struct samu *user )
366 {
367 struct passwd *pwd;
368 NTSTATUS result;
369 const char *guestname = lp_guestaccount();
370
371 pwd = Get_Pwnam_alloc(talloc_tos(), guestname);
372 if (pwd == NULL) {
373 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
374 guestname));
375 return False;
376 }
377
378 result = samu_set_unix(user, pwd );
379
380 TALLOC_FREE( pwd );
381
382 return NT_STATUS_IS_OK( result );
383 }
384
385 /**
386 * @brief Get a sam user structure by the given username.
387 *
388 * This functions also checks if the account has been automatically locked out
389 * and unlocks it if a lockout duration time has been defined and the time has
390 * elapsed.
391 *
392 *
393 * @param[in] sam_acct The sam user structure to fill.
394 *
395 * @param[in] sid The user SDI to look up.
396 *
397 * @return True on success, false on error.
398 */
399 bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid)
400 {
401 struct pdb_methods *pdb = pdb_get_methods();
402 uint32_t rid;
403 void *cache_data;
404 bool ok = false;
405
406 /* hard code the Guest RID of 501 */
407
408 if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
409 return False;
410
411 if ( rid == DOMAIN_RID_GUEST ) {
412 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
413 return guest_user_info( sam_acct );
414 }
415
416 /* check the cache first */
417
418 cache_data = memcache_lookup_talloc(
419 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
420
421 if (cache_data != NULL) {
422 struct samu *cache_copy = talloc_get_type_abort(
423 cache_data, struct samu);
424
425 ok = pdb_copy_sam_account(sam_acct, cache_copy);
426 } else {
427 ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
428 }
429
430 if (!ok) {
431 return false;
432 }
433
434 ok = pdb_try_account_unlock(sam_acct);
435 if (!ok) {
436 DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n",
437 sam_acct->username));
438 }
439
440 return true;
441 }
442
443 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
444 TALLOC_CTX *tmp_ctx, const char *name,
445 uint32_t acb_info, uint32_t *rid)
446 {
447 struct samu *sam_pass;
448 NTSTATUS status;
449 struct passwd *pwd;
450
451 if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
452 return NT_STATUS_NO_MEMORY;
453 }
454
455 if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
456 char *add_script = NULL;
457 int add_ret;
458 fstring name2;
459
460 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
461 add_script = talloc_strdup(tmp_ctx,
462 lp_adduser_script());
463 } else {
464 add_script = talloc_strdup(tmp_ctx,
465 lp_addmachine_script());
466 }
467
468 if (!add_script || add_script[0] == '\0') {
469 DEBUG(3, ("Could not find user %s and no add script "
470 "defined\n", name));
471 return NT_STATUS_NO_SUCH_USER;
472 }
473
474 /* lowercase the username before creating the Unix account for
475 compatibility with previous Samba releases */
476 fstrcpy( name2, name );
477 strlower_m( name2 );
478 add_script = talloc_all_string_sub(tmp_ctx,
479 add_script,
480 "%u",
481 name2);
482 if (!add_script) {
483 return NT_STATUS_NO_MEMORY;
484 }
485 add_ret = smbrun(add_script,NULL);
486 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
487 add_script, add_ret));
488 if (add_ret == 0) {
489 smb_nscd_flush_user_cache();
490 }
491
492 flush_pwnam_cache();
493
494 pwd = Get_Pwnam_alloc(tmp_ctx, name);
495
496 if(pwd == NULL) {
497 DEBUG(3, ("Could not find user %s, add script did not work\n", name));
498 return NT_STATUS_NO_SUCH_USER;
499 }
500 }
501
502 /* we have a valid SID coming out of this call */
503
504 status = samu_alloc_rid_unix(methods, sam_pass, pwd);
505
506 TALLOC_FREE( pwd );
507
508 if (!NT_STATUS_IS_OK(status)) {
509 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
510 return status;
511 }
512
513 if (!sid_peek_check_rid(get_global_sam_sid(),
514 pdb_get_user_sid(sam_pass), rid)) {
515 DEBUG(0, ("Could not get RID of fresh user\n"));
516 return NT_STATUS_INTERNAL_ERROR;
517 }
518
519 /* Use the username case specified in the original request */
520
521 pdb_set_username( sam_pass, name, PDB_SET );
522
523 /* Disable the account on creation, it does not have a reasonable password yet. */
524
525 acb_info |= ACB_DISABLED;
526
527 pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
528
529 status = methods->add_sam_account(methods, sam_pass);
530
531 TALLOC_FREE(sam_pass);
532
533 return status;
534 }
535
536 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags,
537 uint32_t *rid)
538 {
539 struct pdb_methods *pdb = pdb_get_methods();
540 return pdb->create_user(pdb, mem_ctx, name, flags, rid);
541 }
542
543 /****************************************************************************
544 Delete a UNIX user on demand.
545 ****************************************************************************/
546
547 static int smb_delete_user(const char *unix_user)
548 {
549 char *del_script = NULL;
550 int ret;
551
552 /* safety check */
553
554 if ( strequal( unix_user, "root" ) ) {
555 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
556 return -1;
557 }
558
559 del_script = talloc_strdup(talloc_tos(), lp_deluser_script());
560 if (!del_script || !*del_script) {
561 return -1;
562 }
563 del_script = talloc_all_string_sub(talloc_tos(),
564 del_script,
565 "%u",
566 unix_user);
567 if (!del_script) {
568 return -1;
569 }
570 ret = smbrun(del_script,NULL);
571 flush_pwnam_cache();
572 if (ret == 0) {
573 smb_nscd_flush_user_cache();
574 }
575 DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
576
577 return ret;
578 }
579
580 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
581 TALLOC_CTX *mem_ctx,
582 struct samu *sam_acct)
583 {
584 NTSTATUS status;
585 fstring username;
586
587 status = methods->delete_sam_account(methods, sam_acct);
588 if (!NT_STATUS_IS_OK(status)) {
589 return status;
590 }
591
592 /*
593 * Now delete the unix side ....
594 * note: we don't check if the delete really happened as the script is
595 * not necessary present and maybe the sysadmin doesn't want to delete
596 * the unix side
597 */
598
599 /* always lower case the username before handing it off to
600 external scripts */
601
602 fstrcpy( username, pdb_get_username(sam_acct) );
603 strlower_m( username );
604
605 smb_delete_user( username );
606
607 return status;
608 }
609
610 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
611 {
612 struct pdb_methods *pdb = pdb_get_methods();
613 uid_t uid = -1;
614 NTSTATUS status;
615 const struct dom_sid *user_sid;
616 char *msg_data;
617
618 user_sid = pdb_get_user_sid(sam_acct);
619
620 /* sanity check to make sure we don't delete root */
621
622 if ( !sid_to_uid(user_sid, &uid ) ) {
623 return NT_STATUS_NO_SUCH_USER;
624 }
625
626 if ( uid == 0 ) {
627 return NT_STATUS_ACCESS_DENIED;
628 }
629
630 memcache_delete(NULL,
631 PDB_GETPWSID_CACHE,
632 data_blob_const(user_sid, sizeof(*user_sid)));
633
634 status = pdb->delete_user(pdb, mem_ctx, sam_acct);
635 if (!NT_STATUS_IS_OK(status)) {
636 return status;
637 }
638
639 msg_data = talloc_asprintf(mem_ctx, "USER %s",
640 pdb_get_username(sam_acct));
641 if (!msg_data) {
642 /* not fatal, and too late to rollback,
643 * just return */
644 return status;
645 }
646 message_send_all(server_messaging_context(),
647 ID_CACHE_DELETE,
648 msg_data,
649 strlen(msg_data) + 1,
650 NULL);
651
652 TALLOC_FREE(msg_data);
653 return status;
654 }
655
656 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
657 {
658 struct pdb_methods *pdb = pdb_get_methods();
659 return pdb->add_sam_account(pdb, sam_acct);
660 }
661
662 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
663 {
664 struct pdb_methods *pdb = pdb_get_methods();
665
666 memcache_flush(NULL, PDB_GETPWSID_CACHE);
667
668 return pdb->update_sam_account(pdb, sam_acct);
669 }
670
671 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
672 {
673 struct pdb_methods *pdb = pdb_get_methods();
674 const struct dom_sid *user_sid = pdb_get_user_sid(sam_acct);
675
676 memcache_delete(NULL,
677 PDB_GETPWSID_CACHE,
678 data_blob_const(user_sid, sizeof(*user_sid)));
679
680 return pdb->delete_sam_account(pdb, sam_acct);
681 }
682
683 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
684 {
685 struct pdb_methods *pdb = pdb_get_methods();
686 uid_t uid;
687 NTSTATUS status;
688
689 memcache_flush(NULL, PDB_GETPWSID_CACHE);
690
691 /* sanity check to make sure we don't rename root */
692
693 if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
694 return NT_STATUS_NO_SUCH_USER;
695 }
696
697 if ( uid == 0 ) {
698 return NT_STATUS_ACCESS_DENIED;
699 }
700
701 status = pdb->rename_sam_account(pdb, oldname, newname);
702
703 /* always flush the cache here just to be safe */
704 flush_pwnam_cache();
705
706 return status;
707 }
708
709 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
710 {
711 struct pdb_methods *pdb = pdb_get_methods();
712 return pdb->update_login_attempts(pdb, sam_acct, success);
713 }
714
715 bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid)
716 {
717 struct pdb_methods *pdb = pdb_get_methods();
718 return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
719 }
720
721 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
722 {
723 struct pdb_methods *pdb = pdb_get_methods();
724 return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
725 }
726
727 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
728 {
729 struct pdb_methods *pdb = pdb_get_methods();
730 return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
731 }
732
733 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
734 TALLOC_CTX *mem_ctx,
735 const char *name,
736 uint32_t *rid)
737 {
738 struct dom_sid group_sid;
739 struct group *grp;
740 fstring tmp;
741
742 grp = getgrnam(name);
743
744 if (grp == NULL) {
745 gid_t gid;
746
747 if (smb_create_group(name, &gid) != 0) {
748 return NT_STATUS_ACCESS_DENIED;
749 }
750
751 grp = getgrgid(gid);
752 }
753
754 if (grp == NULL) {
755 return NT_STATUS_ACCESS_DENIED;
756 }
757
758 if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
759 if (!pdb_new_rid(rid)) {
760 return NT_STATUS_ACCESS_DENIED;
761 }
762 } else {
763 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
764 }
765
766 sid_compose(&group_sid, get_global_sam_sid(), *rid);
767
768 return add_initial_entry(grp->gr_gid, sid_to_fstring(tmp, &group_sid),
769 SID_NAME_DOM_GRP, name, NULL);
770 }
771
772 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
773 uint32_t *rid)
774 {
775 struct pdb_methods *pdb = pdb_get_methods();
776 return pdb->create_dom_group(pdb, mem_ctx, name, rid);
777 }
778
779 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
780 TALLOC_CTX *mem_ctx,
781 uint32_t rid)
782 {
783 struct dom_sid group_sid;
784 GROUP_MAP *map;
785 NTSTATUS status;
786 struct group *grp;
787 const char *grp_name;
788
789 map = talloc_zero(mem_ctx, GROUP_MAP);
790 if (!map) {
791 return NT_STATUS_NO_MEMORY;
792 }
793
794 /* coverity */
795 map->gid = (gid_t) -1;
796
797 sid_compose(&group_sid, get_global_sam_sid(), rid);
798
799 if (!get_domain_group_from_sid(group_sid, map)) {
800 DEBUG(10, ("Could not find group for rid %d\n", rid));
801 return NT_STATUS_NO_SUCH_GROUP;
802 }
803
804 /* We need the group name for the smb_delete_group later on */
805
806 if (map->gid == (gid_t)-1) {
807 return NT_STATUS_NO_SUCH_GROUP;
808 }
809
810 grp = getgrgid(map->gid);
811 if (grp == NULL) {
812 return NT_STATUS_NO_SUCH_GROUP;
813 }
814
815 TALLOC_FREE(map);
816
817 /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
818
819 grp_name = talloc_strdup(mem_ctx, grp->gr_name);
820 if (grp_name == NULL) {
821 return NT_STATUS_NO_MEMORY;
822 }
823
824 status = pdb_delete_group_mapping_entry(group_sid);
825
826 if (!NT_STATUS_IS_OK(status)) {
827 return status;
828 }
829
830 /* Don't check the result of smb_delete_group */
831
832 smb_delete_group(grp_name);
833
834 return NT_STATUS_OK;
835 }
836
837 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
838 {
839 struct pdb_methods *pdb = pdb_get_methods();
840 return pdb->delete_dom_group(pdb, mem_ctx, rid);
841 }
842
843 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
844 {
845 struct pdb_methods *pdb = pdb_get_methods();
846 return pdb->add_group_mapping_entry(pdb, map);
847 }
848
849 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
850 {
851 struct pdb_methods *pdb = pdb_get_methods();
852 return pdb->update_group_mapping_entry(pdb, map);
853 }
854
855 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
856 {
857 struct pdb_methods *pdb = pdb_get_methods();
858 return pdb->delete_group_mapping_entry(pdb, sid);
859 }
860
861 bool pdb_enum_group_mapping(const struct dom_sid *sid,
862 enum lsa_SidType sid_name_use,
863 GROUP_MAP ***pp_rmap,
864 size_t *p_num_entries,
865 bool unix_only)
866 {
867 struct pdb_methods *pdb = pdb_get_methods();
868 return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
869 pp_rmap, p_num_entries, unix_only));
870 }
871
872 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
873 const struct dom_sid *sid,
874 uint32_t **pp_member_rids,
875 size_t *p_num_members)
876 {
877 struct pdb_methods *pdb = pdb_get_methods();
878 NTSTATUS result;
879
880 result = pdb->enum_group_members(pdb, mem_ctx,
881 sid, pp_member_rids, p_num_members);
882
883 /* special check for rid 513 */
884
885 if ( !NT_STATUS_IS_OK( result ) ) {
886 uint32_t rid;
887
888 sid_peek_rid( sid, &rid );
889
890 if ( rid == DOMAIN_RID_USERS ) {
891 *p_num_members = 0;
892 *pp_member_rids = NULL;
893
894 return NT_STATUS_OK;
895 }
896 }
897
898 return result;
899 }
900
901 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
902 struct dom_sid **pp_sids, gid_t **pp_gids,
903 uint32_t *p_num_groups)
904 {
905 struct pdb_methods *pdb = pdb_get_methods();
906 return pdb->enum_group_memberships(
907 pdb, mem_ctx, user,
908 pp_sids, pp_gids, p_num_groups);
909 }
910
911 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
912 TALLOC_CTX *mem_ctx,
913 struct samu *sampass)
914 {
915 struct group *grp;
916 gid_t gid;
917
918 if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
919 (grp = getgrgid(gid)) == NULL) {
920 return NT_STATUS_INVALID_PRIMARY_GROUP;
921 }
922
923 if (smb_set_primary_group(grp->gr_name,
924 pdb_get_username(sampass)) != 0) {
925 return NT_STATUS_ACCESS_DENIED;
926 }
927
928 return NT_STATUS_OK;
929 }
930
931 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
932 {
933 struct pdb_methods *pdb = pdb_get_methods();
934 return pdb->set_unix_primary_group(pdb, mem_ctx, user);
935 }
936
937 /*
938 * Helper function to see whether a user is in a group. We can't use
939 * user_in_group_sid here because this creates dependencies only smbd can
940 * fulfil.
941 */
942
943 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
944 const struct dom_sid *group_sid)
945 {
946 struct dom_sid *sids;
947 gid_t *gids;
948 uint32_t i, num_groups;
949
950 if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
951 &sids, &gids,
952 &num_groups))) {
953 return False;
954 }
955
956 for (i=0; i<num_groups; i++) {
957 if (dom_sid_equal(group_sid, &sids[i])) {
958 return True;
959 }
960 }
961 return False;
962 }
963
964 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
965 TALLOC_CTX *mem_ctx,
966 uint32_t group_rid,
967 uint32_t member_rid)
968 {
969 struct dom_sid group_sid, member_sid;
970 struct samu *account = NULL;
971 GROUP_MAP *map;
972 struct group *grp;
973 struct passwd *pwd;
974 const char *group_name;
975 uid_t uid;
976
977 map = talloc_zero(mem_ctx, GROUP_MAP);
978 if (!map) {
979 return NT_STATUS_NO_MEMORY;
980 }
981
982 /* coverity */
983 map->gid = (gid_t) -1;
984
985 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
986 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
987
988 if (!get_domain_group_from_sid(group_sid, map) ||
989 (map->gid == (gid_t)-1) ||
990 ((grp = getgrgid(map->gid)) == NULL)) {
991 return NT_STATUS_NO_SUCH_GROUP;
992 }
993
994 TALLOC_FREE(map);
995
996 group_name = talloc_strdup(mem_ctx, grp->gr_name);
997 if (group_name == NULL) {
998 return NT_STATUS_NO_MEMORY;
999 }
1000
1001 if ( !(account = samu_new( NULL )) ) {
1002 return NT_STATUS_NO_MEMORY;
1003 }
1004
1005 if (!pdb_getsampwsid(account, &member_sid) ||
1006 !sid_to_uid(&member_sid, &uid) ||
1007 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1008 return NT_STATUS_NO_SUCH_USER;
1009 }
1010
1011 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1012 return NT_STATUS_MEMBER_IN_GROUP;
1013 }
1014
1015 /*
1016 * ok, the group exist, the user exist, the user is not in the group,
1017 * we can (finally) add it to the group !
1018 */
1019
1020 smb_add_user_group(group_name, pwd->pw_name);
1021
1022 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1023 return NT_STATUS_ACCESS_DENIED;
1024 }
1025
1026 return NT_STATUS_OK;
1027 }
1028
1029 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1030 uint32_t member_rid)
1031 {
1032 struct pdb_methods *pdb = pdb_get_methods();
1033 return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
1034 }
1035
1036 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
1037 TALLOC_CTX *mem_ctx,
1038 uint32_t group_rid,
1039 uint32_t member_rid)
1040 {
1041 struct dom_sid group_sid, member_sid;
1042 struct samu *account = NULL;
1043 GROUP_MAP *map;
1044 struct group *grp;
1045 struct passwd *pwd;
1046 const char *group_name;
1047 uid_t uid;
1048
1049 map = talloc_zero(mem_ctx, GROUP_MAP);
1050 if (!map) {
1051 return NT_STATUS_NO_MEMORY;
1052 }
1053
1054 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
1055 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
1056
1057 if (!get_domain_group_from_sid(group_sid, map) ||
1058 (map->gid == (gid_t)-1) ||
1059 ((grp = getgrgid(map->gid)) == NULL)) {
1060 return NT_STATUS_NO_SUCH_GROUP;
1061 }
1062
1063 TALLOC_FREE(map);
1064
1065 group_name = talloc_strdup(mem_ctx, grp->gr_name);
1066 if (group_name == NULL) {
1067 return NT_STATUS_NO_MEMORY;
1068 }
1069
1070 if ( !(account = samu_new( NULL )) ) {
1071 return NT_STATUS_NO_MEMORY;
1072 }
1073
1074 if (!pdb_getsampwsid(account, &member_sid) ||
1075 !sid_to_uid(&member_sid, &uid) ||
1076 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1077 return NT_STATUS_NO_SUCH_USER;
1078 }
1079
1080 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1081 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1082 }
1083
1084 /*
1085 * ok, the group exist, the user exist, the user is in the group,
1086 * we can (finally) delete it from the group!
1087 */
1088
1089 smb_delete_user_group(group_name, pwd->pw_name);
1090
1091 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1092 return NT_STATUS_ACCESS_DENIED;
1093 }
1094
1095 return NT_STATUS_OK;
1096 }
1097
1098 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1099 uint32_t member_rid)
1100 {
1101 struct pdb_methods *pdb = pdb_get_methods();
1102 return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1103 }
1104
1105 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1106 {
1107 struct pdb_methods *pdb = pdb_get_methods();
1108 return pdb->create_alias(pdb, name, rid);
1109 }
1110
1111 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1112 {
1113 struct pdb_methods *pdb = pdb_get_methods();
1114 return pdb->delete_alias(pdb, sid);
1115 }
1116
1117 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1118 {
1119 struct pdb_methods *pdb = pdb_get_methods();
1120 return pdb->get_aliasinfo(pdb, sid, info);
1121 }
1122
1123 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1124 {
1125 struct pdb_methods *pdb = pdb_get_methods();
1126 return pdb->set_aliasinfo(pdb, sid, info);
1127 }
1128
1129 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1130 {
1131 struct pdb_methods *pdb = pdb_get_methods();
1132 return pdb->add_aliasmem(pdb, alias, member);
1133 }
1134
1135 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1136 {
1137 struct pdb_methods *pdb = pdb_get_methods();
1138 return pdb->del_aliasmem(pdb, alias, member);
1139 }
1140
1141 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1142 struct dom_sid **pp_members, size_t *p_num_members)
1143 {
1144 struct pdb_methods *pdb = pdb_get_methods();
1145 return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1146 p_num_members);
1147 }
1148
1149 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1150 const struct dom_sid *domain_sid,
1151 const struct dom_sid *members, size_t num_members,
1152 uint32_t **pp_alias_rids,
1153 size_t *p_num_alias_rids)
1154 {
1155 struct pdb_methods *pdb = pdb_get_methods();
1156 return pdb->enum_alias_memberships(pdb, mem_ctx,
1157 domain_sid,
1158 members, num_members,
1159 pp_alias_rids,
1160 p_num_alias_rids);
1161 }
1162
1163 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1164 int num_rids,
1165 uint32_t *rids,
1166 const char **names,
1167 enum lsa_SidType *attrs)
1168 {
1169 struct pdb_methods *pdb = pdb_get_methods();
1170 return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1171 }
1172
1173 /*
1174 * NOTE: pdb_lookup_names is currently (2007-01-12) not used anywhere
1175 * in the samba code.
1176 * Unlike _lsa_lookup_sids and _samr_lookup_rids, which eventually
1177 * also ask pdb_lookup_rids, thus looking up a bunch of rids at a time,
1178 * the pdb_ calls _lsa_lookup_names and _samr_lookup_names come
1179 * down to are pdb_getsampwnam and pdb_getgrnam instead of
1180 * pdb_lookup_names.
1181 * But in principle, it the call belongs to the API and might get
1182 * used in this context some day.
1183 */
1184 #if 0
1185 NTSTATUS pdb_lookup_names(const struct dom_sid *domain_sid,
1186 int num_names,
1187 const char **names,
1188 uint32_t *rids,
1189 enum lsa_SidType *attrs)
1190 {
1191 struct pdb_methods *pdb = pdb_get_methods();
1192 return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
1193 }
1194 #endif
1195
1196 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1197 {
1198 struct pdb_methods *pdb = pdb_get_methods();
1199 NTSTATUS status;
1200
1201 become_root();
1202 status = pdb->get_account_policy(pdb, type, value);
1203 unbecome_root();
1204
1205 return NT_STATUS_IS_OK(status);
1206 }
1207
1208 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1209 {
1210 struct pdb_methods *pdb = pdb_get_methods();
1211 NTSTATUS status;
1212
1213 become_root();
1214 status = pdb->set_account_policy(pdb, type, value);
1215 unbecome_root();
1216
1217 return NT_STATUS_IS_OK(status);
1218 }
1219
1220 bool pdb_get_seq_num(time_t *seq_num)
1221 {
1222 struct pdb_methods *pdb = pdb_get_methods();
1223 return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1224 }
1225
1226 bool pdb_uid_to_sid(uid_t uid, struct dom_sid *sid)
1227 {
1228 struct pdb_methods *pdb = pdb_get_methods();
1229 return pdb->uid_to_sid(pdb, uid, sid);
1230 }
1231
1232 bool pdb_gid_to_sid(gid_t gid, struct dom_sid *sid)
1233 {
1234 struct pdb_methods *pdb = pdb_get_methods();
1235 return pdb->gid_to_sid(pdb, gid, sid);
1236 }
1237
1238 bool pdb_sid_to_id(const struct dom_sid *sid, struct unixid *id)
1239 {
1240 struct pdb_methods *pdb = pdb_get_methods();
1241 return pdb->sid_to_id(pdb, sid, id);
1242 }
1243
1244 uint32_t pdb_capabilities(void)
1245 {
1246 struct pdb_methods *pdb = pdb_get_methods();
1247 return pdb->capabilities(pdb);
1248 }
1249
1250 /********************************************************************
1251 Allocate a new RID from the passdb backend. Verify that it is free
1252 by calling lookup_global_sam_rid() to verify that the RID is not
1253 in use. This handles servers that have existing users or groups
1254 with add RIDs (assigned from previous algorithmic mappings)
1255 ********************************************************************/
1256
1257 bool pdb_new_rid(uint32_t *rid)
1258 {
1259 struct pdb_methods *pdb = pdb_get_methods();
1260 const char *name = NULL;
1261 enum lsa_SidType type;
1262 uint32_t allocated_rid = 0;
1263 int i;
1264 TALLOC_CTX *ctx;
1265
1266 if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1267 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1268 "are active\n"));
1269 return False;
1270 }
1271
1272 if (algorithmic_rid_base() != BASE_RID) {
1273 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1274 "without algorithmic RIDs is chosen.\n"));
1275 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1276 "add', set the maximum used RID\n"));
1277 DEBUGADD(0, ("and remove the parameter\n"));
1278 return False;
1279 }
1280
1281 if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1282 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1283 return False;
1284 }
1285
1286 /* Attempt to get an unused RID (max tires is 250...yes that it is
1287 and arbitrary number I pulkled out of my head). -- jerry */
1288
1289 for ( i=0; allocated_rid==0 && i<250; i++ ) {
1290 /* get a new RID */
1291
1292 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1293 return False;
1294 }
1295
1296 /* validate that the RID is not in use */
1297
1298 if (lookup_global_sam_rid(ctx, allocated_rid, &name, &type, NULL, NULL)) {
1299 allocated_rid = 0;
1300 }
1301 }
1302
1303 TALLOC_FREE( ctx );
1304
1305 if ( allocated_rid == 0 ) {
1306 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1307 return False;
1308 }
1309
1310 *rid = allocated_rid;
1311
1312 return True;
1313 }
1314
1315 /***************************************************************
1316 Initialize the static context (at smbd startup etc).
1317
1318 If uninitialised, context will auto-init on first use.
1319 ***************************************************************/
1320
1321 bool initialize_password_db(bool reload, struct tevent_context *tevent_ctx)
1322 {
1323 pdb_tevent_ctx = tevent_ctx;
1324 return (pdb_get_methods_reload(reload) != NULL);
1325 }
1326
1327
1328 /***************************************************************************
1329 Default implementations of some functions.
1330 ****************************************************************************/
1331
1332 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1333 {
1334 return NT_STATUS_NO_SUCH_USER;
1335 }
1336
1337 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1338 {
1339 return NT_STATUS_NO_SUCH_USER;
1340 }
1341
1342 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1343 {
1344 return NT_STATUS_NOT_IMPLEMENTED;
1345 }
1346
1347 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1348 {
1349 return NT_STATUS_NOT_IMPLEMENTED;
1350 }
1351
1352 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1353 {
1354 return NT_STATUS_NOT_IMPLEMENTED;
1355 }
1356
1357 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1358 {
1359 return NT_STATUS_NOT_IMPLEMENTED;
1360 }
1361
1362 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1363 {
1364 /* Only the pdb_nds backend implements this, by
1365 * default just return ok. */
1366 return NT_STATUS_OK;
1367 }
1368
1369 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1370 {
1371 return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1372 }
1373
1374 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1375 {
1376 return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1377 }
1378
1379 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1380 {
1381 *seq_num = time(NULL);
1382 return NT_STATUS_OK;
1383 }
1384
1385 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1386 struct dom_sid *sid)
1387 {
1388 struct samu *sampw = NULL;
1389 struct passwd *unix_pw;
1390 bool ret;
1391
1392 unix_pw = getpwuid( uid );
1393
1394 if ( !unix_pw ) {
1395 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1396 "%lu\n", (unsigned long)uid));
1397 return False;
1398 }
1399
1400 if ( !(sampw = samu_new( NULL )) ) {
1401 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1402 return False;
1403 }
1404
1405 become_root();
1406 ret = NT_STATUS_IS_OK(
1407 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1408 unbecome_root();
1409
1410 if (!ret) {
1411 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1412 "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1413 TALLOC_FREE(sampw);
1414 return False;
1415 }
1416
1417 sid_copy(sid, pdb_get_user_sid(sampw));
1418
1419 TALLOC_FREE(sampw);
1420
1421 return True;
1422 }
1423
1424 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1425 struct dom_sid *sid)
1426 {
1427 GROUP_MAP *map;
1428
1429 map = talloc_zero(NULL, GROUP_MAP);
1430 if (!map) {
1431 return false;
1432 }
1433
1434 if (!NT_STATUS_IS_OK(methods->getgrgid(methods, map, gid))) {
1435 TALLOC_FREE(map);
1436 return false;
1437 }
1438
1439 sid_copy(sid, &map->sid);
1440 TALLOC_FREE(map);
1441 return true;
1442 }
1443
1444 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1445 const struct dom_sid *sid,
1446 struct unixid *id)
1447 {
1448 TALLOC_CTX *mem_ctx;
1449 bool ret = False;
1450 uint32_t rid;
1451 id->id = -1;
1452
1453 mem_ctx = talloc_new(NULL);
1454
1455 if (mem_ctx == NULL) {
1456 DEBUG(0, ("talloc_new failed\n"));
1457 return False;
1458 }
1459
1460 if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1461 const char *name;
1462 enum lsa_SidType type;
1463 uid_t uid;
1464 gid_t gid;
1465 /* Here we might have users as well as groups and aliases */
1466 ret = lookup_global_sam_rid(mem_ctx, rid, &name, &type, &uid, &gid);
1467 if (ret) {
1468 switch (type) {
1469 case SID_NAME_DOM_GRP:
1470 case SID_NAME_ALIAS:
1471 id->type = ID_TYPE_GID;
1472 id->id = gid;
1473 break;
1474 case SID_NAME_USER:
1475 id->type = ID_TYPE_UID;
1476 id->id = uid;
1477 break;
1478 default:
1479 DEBUG(5, ("SID %s is our domain, but is not mapped to a user or group (got %d)\n",
1480 sid_string_dbg(sid), type));
1481 ret = false;
1482 }
1483 } else {
1484 DEBUG(5, ("SID %s is or domain, but is unmapped\n",
1485 sid_string_dbg(sid)));
1486 }
1487 goto done;
1488 }
1489
1490 /* check for "Unix User" */
1491
1492 if ( sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid) ) {
1493 id->id = rid;
1494 id->type = ID_TYPE_UID;
1495 ret = True;
1496 goto done;
1497 }
1498
1499 /* check for "Unix Group" */
1500
1501 if ( sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid) ) {
1502 id->id = rid;
1503 id->type = ID_TYPE_GID;
1504 ret = True;
1505 goto done;
1506 }
1507
1508 /* BUILTIN */
1509
1510 if (sid_check_is_in_builtin(sid) ||
1511 sid_check_is_in_wellknown_domain(sid)) {
1512 /* Here we only have aliases */
1513 GROUP_MAP *map;
1514
1515 map = talloc_zero(mem_ctx, GROUP_MAP);
1516 if (!map) {
1517 ret = false;
1518 goto done;
1519 }
1520
1521 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, map, *sid))) {
1522 DEBUG(10, ("Could not find map for sid %s\n",
1523 sid_string_dbg(sid)));
1524 goto done;
1525 }
1526 if ((map->sid_name_use != SID_NAME_ALIAS) &&
1527 (map->sid_name_use != SID_NAME_WKN_GRP)) {
1528 DEBUG(10, ("Map for sid %s is a %s, expected an "
1529 "alias\n", sid_string_dbg(sid),
1530 sid_type_lookup(map->sid_name_use)));
1531 goto done;
1532 }
1533
1534 id->id = map->gid;
1535 id->type = ID_TYPE_GID;
1536 ret = True;
1537 goto done;
1538 }
1539
1540 DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1541 sid_string_dbg(sid)));
1542
1543 done:
1544
1545 TALLOC_FREE(mem_ctx);
1546 return ret;
1547 }
1548
1549 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num)
1550 {
1551 struct group *grp;
1552 char **gr;
1553 struct passwd *pwd;
1554 bool winbind_env;
1555 bool ret = False;
1556
1557 *pp_uids = NULL;
1558 *p_num = 0;
1559
1560 /* We only look at our own sam, so don't care about imported stuff */
1561 winbind_env = winbind_env_set();
1562 (void)winbind_off();
1563
1564 if ((grp = getgrgid(gid)) == NULL) {
1565 /* allow winbindd lookups, but only if they weren't already disabled */
1566 goto done;
1567 }
1568
1569 /* Primary group members */
1570 setpwent();
1571 while ((pwd = getpwent()) != NULL) {
1572 if (pwd->pw_gid == gid) {
1573 if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1574 pp_uids, p_num)) {
1575 goto done;
1576 }
1577 }
1578 }
1579 endpwent();
1580
1581 /* Secondary group members */
1582 for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1583 struct passwd *pw = getpwnam(*gr);
1584
1585 if (pw == NULL)
1586 continue;
1587 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1588 goto done;
1589 }
1590 }
1591
1592 ret = True;
1593
1594 done:
1595
1596 /* allow winbindd lookups, but only if they weren't already disabled */
1597 if (!winbind_env) {
1598 (void)winbind_on();
1599 }
1600
1601 return ret;
1602 }
1603
1604 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1605 TALLOC_CTX *mem_ctx,
1606 const struct dom_sid *group,
1607 uint32_t **pp_member_rids,
1608 size_t *p_num_members)
1609 {
1610 gid_t gid;
1611 uid_t *uids;
1612 uint32_t i, num_uids;
1613
1614 *pp_member_rids = NULL;
1615 *p_num_members = 0;
1616
1617 if (!sid_to_gid(group, &gid))
1618 return NT_STATUS_NO_SUCH_GROUP;
1619
1620 if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1621 return NT_STATUS_NO_SUCH_GROUP;
1622
1623 if (num_uids == 0)
1624 return NT_STATUS_OK;
1625
1626 *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids);
1627
1628 for (i=0; i<num_uids; i++) {
1629 struct dom_sid sid;
1630
1631 uid_to_sid(&sid, uids[i]);
1632
1633 if (!sid_check_is_in_our_domain(&sid)) {
1634 DEBUG(5, ("Inconsistent SAM -- group member uid not "
1635 "in our domain\n"));
1636 continue;
1637 }
1638
1639 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1640 *p_num_members += 1;
1641 }
1642
1643 return NT_STATUS_OK;
1644 }
1645
1646 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1647 TALLOC_CTX *mem_ctx,
1648 struct samu *user,
1649 struct dom_sid **pp_sids,
1650 gid_t **pp_gids,
1651 uint32_t *p_num_groups)
1652 {
1653 size_t i;
1654 gid_t gid;
1655 struct passwd *pw;
1656 const char *username = pdb_get_username(user);
1657
1658
1659 /* Ignore the primary group SID. Honor the real Unix primary group.
1660 The primary group SID is only of real use to Windows clients */
1661
1662 if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
1663 return NT_STATUS_NO_SUCH_USER;
1664 }
1665
1666 gid = pw->pw_gid;
1667
1668 TALLOC_FREE( pw );
1669
1670 if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1671 return NT_STATUS_NO_SUCH_USER;
1672 }
1673
1674 if (*p_num_groups == 0) {
1675 smb_panic("primary group missing");
1676 }
1677
1678 *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups);
1679
1680 if (*pp_sids == NULL) {
1681 TALLOC_FREE(*pp_gids);
1682 return NT_STATUS_NO_MEMORY;
1683 }
1684
1685 for (i=0; i<*p_num_groups; i++) {
1686 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1687 }
1688
1689 return NT_STATUS_OK;
1690 }
1691
1692 /*******************************************************************
1693 Look up a rid in the SAM we're responsible for (i.e. passdb)
1694 ********************************************************************/
1695
1696 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1697 const char **name,
1698 enum lsa_SidType *psid_name_use,
1699 uid_t *uid, gid_t *gid)
1700 {
1701 struct samu *sam_account = NULL;
1702 GROUP_MAP *map = NULL;
1703 bool ret;
1704 struct dom_sid sid;
1705
1706 *psid_name_use = SID_NAME_UNKNOWN;
1707
1708 DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1709 (unsigned int)rid));
1710
1711 sid_compose(&sid, get_global_sam_sid(), rid);
1712
1713 /* see if the passdb can help us with the name of the user */
1714
1715 if ( !(sam_account = samu_new( NULL )) ) {
1716 return False;
1717 }
1718
1719 map = talloc_zero(mem_ctx, GROUP_MAP);
1720 if (!map) {
1721 return false;
1722 }
1723
1724 /* BEING ROOT BLOCK */
1725 become_root();
1726 ret = pdb_getsampwsid(sam_account, &sid);
1727 if (!ret) {
1728 TALLOC_FREE(sam_account);
1729 ret = pdb_getgrsid(map, sid);
1730 }
1731 unbecome_root();
1732 /* END BECOME_ROOT BLOCK */
1733
1734 if (sam_account || !ret) {
1735 TALLOC_FREE(map);
1736 }
1737
1738 if (sam_account) {
1739 struct passwd *pw;
1740
1741 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1742 if (!*name) {
1743 TALLOC_FREE(sam_account);
1744 return False;
1745 }
1746
1747 *psid_name_use = SID_NAME_USER;
1748
1749 TALLOC_FREE(sam_account);
1750
1751 if (uid == NULL) {
1752 return True;
1753 }
1754
1755 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1756 if (pw == NULL) {
1757 return False;
1758 }
1759 *uid = pw->pw_uid;
1760 TALLOC_FREE(pw);
1761 return True;
1762
1763 } else if (map && (map->gid != (gid_t)-1)) {
1764
1765 /* do not resolve SIDs to a name unless there is a valid
1766 gid associated with it */
1767
1768 *name = talloc_steal(mem_ctx, map->nt_name);
1769 *psid_name_use = map->sid_name_use;
1770
1771 if (gid) {
1772 *gid = map->gid;
1773 }
1774
1775 TALLOC_FREE(map);
1776 return True;
1777 }
1778
1779 TALLOC_FREE(map);
1780
1781 /* Windows will always map RID 513 to something. On a non-domain
1782 controller, this gets mapped to SERVER\None. */
1783
1784 if (uid || gid) {
1785 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1786 return False;
1787 }
1788
1789 if ( rid == DOMAIN_RID_USERS ) {
1790 *name = talloc_strdup(mem_ctx, "None" );
1791 *psid_name_use = SID_NAME_DOM_GRP;
1792
1793 return True;
1794 }
1795
1796 return False;
1797 }
1798
1799 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1800 const struct dom_sid *domain_sid,
1801 int num_rids,
1802 uint32_t *rids,
1803 const char **names,
1804 enum lsa_SidType *attrs)
1805 {
1806 int i;
1807 NTSTATUS result;
1808 bool have_mapped = False;
1809 bool have_unmapped = False;
1810
1811 if (sid_check_is_builtin(domain_sid)) {
1812
1813 for (i=0; i<num_rids; i++) {
1814 const char *name;
1815
1816 if (lookup_builtin_rid(names, rids[i], &name)) {
1817 attrs[i] = SID_NAME_ALIAS;
1818 names[i] = name;
1819 DEBUG(5,("lookup_rids: %s:%d\n",
1820 names[i], attrs[i]));
1821 have_mapped = True;
1822 } else {
1823 have_unmapped = True;
1824 attrs[i] = SID_NAME_UNKNOWN;
1825 }
1826 }
1827 goto done;
1828 }
1829
1830 /* Should not happen, but better check once too many */
1831 if (!sid_check_is_domain(domain_sid)) {
1832 return NT_STATUS_INVALID_HANDLE;
1833 }
1834
1835 for (i = 0; i < num_rids; i++) {
1836 const char *name;
1837
1838 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1839 NULL, NULL)) {
1840 if (name == NULL) {
1841 return NT_STATUS_NO_MEMORY;
1842 }
1843 names[i] = name;
1844 DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1845 have_mapped = True;
1846 } else {
1847 have_unmapped = True;
1848 attrs[i] = SID_NAME_UNKNOWN;
1849 }
1850 }
1851
1852 done:
1853
1854 result = NT_STATUS_NONE_MAPPED;
1855
1856 if (have_mapped)
1857 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1858
1859 return result;
1860 }
1861
1862 #if 0
1863 static NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1864 const struct dom_sid *domain_sid,
1865 int num_names,
1866 const char **names,
1867 uint32_t *rids,
1868 enum lsa_SidType *attrs)
1869 {
1870 int i;
1871 NTSTATUS result;
1872 bool have_mapped = False;
1873 bool have_unmapped = False;
1874
1875 if (sid_check_is_builtin(domain_sid)) {
1876
1877 for (i=0; i<num_names; i++) {
1878 uint32_t rid;
1879
1880 if (lookup_builtin_name(names[i], &rid)) {
1881 attrs[i] = SID_NAME_ALIAS;
1882 rids[i] = rid;
1883 DEBUG(5,("lookup_rids: %s:%d\n",
1884 names[i], attrs[i]));
1885 have_mapped = True;
1886 } else {
1887 have_unmapped = True;
1888 attrs[i] = SID_NAME_UNKNOWN;
1889 }
1890 }
1891 goto done;
1892 }
1893
1894 /* Should not happen, but better check once too many */
1895 if (!sid_check_is_domain(domain_sid)) {
1896 return NT_STATUS_INVALID_HANDLE;
1897 }
1898
1899 for (i = 0; i < num_names; i++) {
1900 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1901 DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1902 rids[i], attrs[i]));
1903 have_mapped = True;
1904 } else {
1905 have_unmapped = True;
1906 attrs[i] = SID_NAME_UNKNOWN;
1907 }
1908 }
1909
1910 done:
1911
1912 result = NT_STATUS_NONE_MAPPED;
1913
1914 if (have_mapped)
1915 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1916
1917 return result;
1918 }
1919 #endif
1920
1921 static int pdb_search_destructor(struct pdb_search *search)
1922 {
1923 if ((!search->search_ended) && (search->search_end != NULL)) {
1924 search->search_end(search);
1925 }
1926 return 0;
1927 }
1928
1929 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1930 enum pdb_search_type type)
1931 {
1932 struct pdb_search *result;
1933
1934 result = talloc(mem_ctx, struct pdb_search);
1935 if (result == NULL) {
1936 DEBUG(0, ("talloc failed\n"));
1937 return NULL;
1938 }
1939
1940 result->type = type;
1941 result->cache = NULL;
1942 result->num_entries = 0;
1943 result->cache_size = 0;
1944 result->search_ended = False;
1945 result->search_end = NULL;
1946
1947 /* Segfault appropriately if not initialized */
1948 result->next_entry = NULL;
1949 result->search_end = NULL;
1950
1951 talloc_set_destructor(result, pdb_search_destructor);
1952
1953 return result;
1954 }
1955
1956 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1957 uint16_t acct_flags,
1958 const char *account_name,
1959 const char *fullname,
1960 const char *description,
1961 struct samr_displayentry *entry)
1962 {
1963 entry->rid = rid;
1964 entry->acct_flags = acct_flags;
1965
1966 if (account_name != NULL)
1967 entry->account_name = talloc_strdup(mem_ctx, account_name);
1968 else
1969 entry->account_name = "";
1970
1971 if (fullname != NULL)
1972 entry->fullname = talloc_strdup(mem_ctx, fullname);
1973 else
1974 entry->fullname = "";
1975
1976 if (description != NULL)
1977 entry->description = talloc_strdup(mem_ctx, description);
1978 else
1979 entry->description = "";
1980 }
1981
1982 struct group_search {
1983 GROUP_MAP **groups;
1984 size_t num_groups, current_group;
1985 };
1986
1987 static bool next_entry_groups(struct pdb_search *s,
1988 struct samr_displayentry *entry)
1989 {
1990 struct group_search *state = (struct group_search *)s->private_data;
1991 uint32_t rid;
1992 GROUP_MAP *map;
1993
1994 if (state->current_group == state->num_groups)
1995 return False;
1996
1997 map = state->groups[state->current_group];
1998
1999 sid_peek_rid(&map->sid, &rid);
2000
2001 fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
2002
2003 state->current_group += 1;
2004 return True;
2005 }
2006
2007 static void search_end_groups(struct pdb_search *search)
2008 {
2009 struct group_search *state =
2010 (struct group_search *)search->private_data;
2011 TALLOC_FREE(state->groups);
2012 }
2013
2014 static bool pdb_search_grouptype(struct pdb_methods *methods,
2015 struct pdb_search *search,
2016 const struct dom_sid *sid, enum lsa_SidType type)
2017 {
2018 struct group_search *state;
2019
2020 state = talloc_zero(search, struct group_search);
2021 if (state == NULL) {
2022 DEBUG(0, ("talloc failed\n"));
2023 return False;
2024 }
2025
2026 if (!NT_STATUS_IS_OK(methods->enum_group_mapping(methods, sid, type,
2027 &state->groups, &state->num_groups,
2028 True))) {
2029 DEBUG(0, ("Could not enum groups\n"));
2030 return False;
2031 }
2032
2033 state->current_group = 0;
2034 search->private_data = state;
2035 search->next_entry = next_entry_groups;
2036 search->search_end = search_end_groups;
2037 return True;
2038 }
2039
2040 static bool pdb_default_search_groups(struct pdb_methods *methods,
2041 struct pdb_search *search)
2042 {
2043 return pdb_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
2044 }
2045
2046 static bool pdb_default_search_aliases(struct pdb_methods *methods,
2047 struct pdb_search *search,
2048 const struct dom_sid *sid)
2049 {
2050
2051 return pdb_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
2052 }
2053
2054 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
2055 uint32_t idx)
2056 {
2057 if (idx < search->num_entries)
2058 return &search->cache[idx];
2059
2060 if (search->search_ended)
2061 return NULL;
2062
2063 while (idx >= search->num_entries) {
2064 struct samr_displayentry entry;
2065
2066 if (!search->next_entry(search, &entry)) {
2067 search->search_end(search);
2068 search->search_ended = True;
2069 break;
2070 }
2071
2072 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
2073 entry, &search->cache, &search->num_entries,
2074 &search->cache_size);
2075 }
2076
2077 return (search->num_entries > idx) ? &search->cache[idx] : NULL;
2078 }
2079
2080 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
2081 {
2082 struct pdb_methods *pdb = pdb_get_methods();
2083 struct pdb_search *result;
2084
2085 result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
2086 if (result == NULL) {
2087 return NULL;
2088 }
2089
2090 if (!pdb->search_users(pdb, result, acct_flags)) {
2091 TALLOC_FREE(result);
2092 return NULL;
2093 }
2094 return result;
2095 }
2096
2097 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
2098 {
2099 struct pdb_methods *pdb = pdb_get_methods();
2100 struct pdb_search *result;
2101
2102 result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
2103 if (result == NULL) {
2104 return NULL;
2105 }
2106
2107 if (!pdb->search_groups(pdb, result)) {
2108 TALLOC_FREE(result);
2109 return NULL;
2110 }
2111 return result;
2112 }
2113
2114 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
2115 {
2116 struct pdb_methods *pdb = pdb_get_methods();
2117 struct pdb_search *result;
2118
2119 if (pdb == NULL) return NULL;
2120
2121 result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
2122 if (result == NULL) {
2123 return NULL;
2124 }
2125
2126 if (!pdb->search_aliases(pdb, result, sid)) {
2127 TALLOC_FREE(result);
2128 return NULL;
2129 }
2130 return result;
2131 }
2132
2133 uint32_t pdb_search_entries(struct pdb_search *search,
2134 uint32_t start_idx, uint32_t max_entries,
2135 struct samr_displayentry **result)
2136 {
2137 struct samr_displayentry *end_entry;
2138 uint32_t end_idx = start_idx+max_entries-1;
2139
2140 /* The first entry needs to be searched after the last. Otherwise the
2141 * first entry might have moved due to a realloc during the search for
2142 * the last entry. */
2143
2144 end_entry = pdb_search_getentry(search, end_idx);
2145 *result = pdb_search_getentry(search, start_idx);
2146
2147 if (end_entry != NULL)
2148 return max_entries;
2149
2150 if (start_idx >= search->num_entries)
2151 return 0;
2152
2153 return search->num_entries - start_idx;
2154 }
2155
2156 /*******************************************************************
2157 trustdom methods
2158 *******************************************************************/
2159
2160 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2161 time_t *pass_last_set_time)
2162 {
2163 struct pdb_methods *pdb = pdb_get_methods();
2164 return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2165 pass_last_set_time);
2166 }
2167
2168 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2169 const struct dom_sid *sid)
2170 {
2171 struct pdb_methods *pdb = pdb_get_methods();
2172 return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2173 }
2174
2175 bool pdb_del_trusteddom_pw(const char *domain)
2176 {
2177 struct pdb_methods *pdb = pdb_get_methods();
2178 return pdb->del_trusteddom_pw(pdb, domain);
2179 }
2180
2181 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2182 struct trustdom_info ***domains)
2183 {
2184 struct pdb_methods *pdb = pdb_get_methods();
2185 return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2186 }
2187
2188 /*******************************************************************
2189 the defaults for trustdom methods:
2190 these simply call the original passdb/secrets.c actions,
2191 to be replaced by pdb_ldap.
2192 *******************************************************************/
2193
2194 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2195 const char *domain,
2196 char** pwd,
2197 struct dom_sid *sid,
2198 time_t *pass_last_set_time)
2199 {
2200 return secrets_fetch_trusted_domain_password(domain, pwd,
2201 sid, pass_last_set_time);
2202
2203 }
2204
2205 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2206 const char* domain,
2207 const char* pwd,
2208 const struct dom_sid *sid)
2209 {
2210 return secrets_store_trusted_domain_password(domain, pwd, sid);
2211 }
2212
2213 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2214 const char *domain)
2215 {
2216 return trusted_domain_password_delete(domain);
2217 }
2218
2219 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2220 TALLOC_CTX *mem_ctx,
2221 uint32_t *num_domains,
2222 struct trustdom_info ***domains)
2223 {
2224 return secrets_trusted_domains(mem_ctx, num_domains, domains);
2225 }
2226
2227 /*******************************************************************
2228 trusted_domain methods
2229 *******************************************************************/
2230
2231 NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain,
2232 struct pdb_trusted_domain **td)
2233 {
2234 struct pdb_methods *pdb = pdb_get_methods();
2235 return pdb->get_trusted_domain(pdb, mem_ctx, domain, td);
2236 }
2237
2238 NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid,
2239 struct pdb_trusted_domain **td)
2240 {
2241 struct pdb_methods *pdb = pdb_get_methods();
2242 return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td);
2243 }
2244
2245 NTSTATUS pdb_set_trusted_domain(const char* domain,
2246 const struct pdb_trusted_domain *td)
2247 {
2248 struct pdb_methods *pdb = pdb_get_methods();
2249 return pdb->set_trusted_domain(pdb, domain, td);
2250 }
2251
2252 NTSTATUS pdb_del_trusted_domain(const char *domain)
2253 {
2254 struct pdb_methods *pdb = pdb_get_methods();
2255 return pdb->del_trusted_domain(pdb, domain);
2256 }
2257
2258 NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2259 struct pdb_trusted_domain ***domains)
2260 {
2261 struct pdb_methods *pdb = pdb_get_methods();
2262 return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains);
2263 }
2264
2265 static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods,
2266 TALLOC_CTX *mem_ctx,
2267 const char *domain,
2268 struct pdb_trusted_domain **td)
2269 {
2270 struct trustAuthInOutBlob taiob;
2271 struct AuthenticationInformation aia;
2272 struct pdb_trusted_domain *tdom;
2273 enum ndr_err_code ndr_err;
2274 time_t last_set_time;
2275 char *pwd;
2276 bool ok;
2277
2278 tdom = talloc(mem_ctx, struct pdb_trusted_domain);
2279 if (!tdom) {
2280 return NT_STATUS_NO_MEMORY;
2281 }
2282
2283 tdom->domain_name = talloc_strdup(tdom, domain);
2284 tdom->netbios_name = talloc_strdup(tdom, domain);
2285 if (!tdom->domain_name || !tdom->netbios_name) {
2286 talloc_free(tdom);
2287 return NT_STATUS_NO_MEMORY;
2288 }
2289
2290 tdom->trust_auth_incoming = data_blob_null;
2291
2292 ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier,
2293 &last_set_time);
2294 if (!ok) {
2295 talloc_free(tdom);
2296 return NT_STATUS_UNSUCCESSFUL;
2297 }
2298
2299 ZERO_STRUCT(taiob);
2300 ZERO_STRUCT(aia);
2301 taiob.count = 1;
2302 taiob.current.count = 1;
2303 taiob.current.array = &aia;
2304 unix_to_nt_time(&aia.LastUpdateTime, last_set_time);
2305 aia.AuthType = TRUST_AUTH_TYPE_CLEAR;
2306 aia.AuthInfo.clear.password = (uint8_t *) pwd;
2307 aia.AuthInfo.clear.size = strlen(pwd);
2308 taiob.previous.count = 0;
2309 taiob.previous.array = NULL;
2310
2311 ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing,
2312 tdom, &taiob,
2313 (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
2314 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2315 talloc_free(tdom);
2316 return NT_STATUS_UNSUCCESSFUL;
2317 }
2318
2319 tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND;
2320 tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL;
2321 tdom->trust_attributes = 0;
2322 tdom->trust_forest_trust_info = data_blob_null;
2323
2324 *td = tdom;
2325 return NT_STATUS_OK;
2326 }
2327
2328 static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods,
2329 TALLOC_CTX *mem_ctx,
2330 struct dom_sid *sid,
2331 struct pdb_trusted_domain **td)
2332 {
2333 return NT_STATUS_NOT_IMPLEMENTED;
2334 }
2335
2336 #define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0)
2337
2338 static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods,
2339 const char* domain,
2340 const struct pdb_trusted_domain *td)
2341 {
2342 struct trustAuthInOutBlob taiob;
2343 struct AuthenticationInformation *aia;
2344 enum ndr_err_code ndr_err;
2345 char *pwd;
2346 bool ok;
2347
2348 if (td->trust_attributes != 0 ||
2349 td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL ||
2350 td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND ||
2351 !IS_NULL_DATA_BLOB(td->trust_auth_incoming) ||
2352 !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) {
2353 return NT_STATUS_NOT_IMPLEMENTED;
2354 }
2355
2356 ZERO_STRUCT(taiob);
2357 ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(),
2358 &taiob,
2359 (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2360 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2361 return NT_STATUS_UNSUCCESSFUL;
2362 }
2363
2364 aia = (struct AuthenticationInformation *) taiob.current.array;
2365
2366 if (taiob.count != 1 || taiob.current.count != 1 ||
2367 taiob.previous.count != 0 ||
2368 aia->AuthType != TRUST_AUTH_TYPE_CLEAR) {
2369 return NT_STATUS_NOT_IMPLEMENTED;
2370 }
2371
2372 pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password,
2373 aia->AuthInfo.clear.size);
2374 if (!pwd) {
2375 return NT_STATUS_NO_MEMORY;
2376 }
2377
2378 ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier);
2379 if (!ok) {
2380 return NT_STATUS_UNSUCCESSFUL;
2381 }
2382
2383 return NT_STATUS_OK;
2384 }
2385
2386 static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods,
2387 const char *domain)
2388 {
2389 return NT_STATUS_NOT_IMPLEMENTED;
2390 }
2391
2392 static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods,
2393 TALLOC_CTX *mem_ctx,
2394 uint32_t *num_domains,
2395 struct pdb_trusted_domain ***domains)
2396 {
2397 return NT_STATUS_NOT_IMPLEMENTED;
2398 }
2399
2400 static struct pdb_domain_info *pdb_default_get_domain_info(
2401 struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2402 {
2403 return NULL;
2404 }
2405
2406 /*******************************************************************
2407 secret methods
2408 *******************************************************************/
2409
2410 NTSTATUS pdb_get_secret(TALLOC_CTX *mem_ctx,
2411 const char *secret_name,
2412 DATA_BLOB *secret_current,
2413 NTTIME *secret_current_lastchange,
2414 DATA_BLOB *secret_old,
2415 NTTIME *secret_old_lastchange,
2416 struct security_descriptor **sd)
2417 {
2418 struct pdb_methods *pdb = pdb_get_methods();
2419 return pdb->get_secret(pdb, mem_ctx, secret_name,
2420 secret_current, secret_current_lastchange,
2421 secret_old, secret_old_lastchange,
2422 sd);
2423 }
2424
2425 NTSTATUS pdb_set_secret(const char *secret_name,
2426 DATA_BLOB *secret_current,
2427 DATA_BLOB *secret_old,
2428 struct security_descriptor *sd)
2429 {
2430 struct pdb_methods *pdb = pdb_get_methods();
2431 return pdb->set_secret(pdb, secret_name,
2432 secret_current,
2433 secret_old,
2434 sd);
2435 }
2436
2437 NTSTATUS pdb_delete_secret(const char *secret_name)
2438 {
2439 struct pdb_methods *pdb = pdb_get_methods();
2440 return pdb->delete_secret(pdb, secret_name);
2441 }
2442
2443 static NTSTATUS pdb_default_get_secret(struct pdb_methods *methods,
2444 TALLOC_CTX *mem_ctx,
2445 const char *secret_name,
2446 DATA_BLOB *secret_current,
2447 NTTIME *secret_current_lastchange,
2448 DATA_BLOB *secret_old,
2449 NTTIME *secret_old_lastchange,
2450 struct security_descriptor **sd)
2451 {
2452 return lsa_secret_get(mem_ctx, secret_name,
2453 secret_current,
2454 secret_current_lastchange,
2455 secret_old,
2456 secret_old_lastchange,
2457 sd);
2458 }
2459
2460 static NTSTATUS pdb_default_set_secret(struct pdb_methods *methods,
2461 const char *secret_name,
2462 DATA_BLOB *secret_current,
2463 DATA_BLOB *secret_old,
2464 struct security_descriptor *sd)
2465 {
2466 return lsa_secret_set(secret_name,
2467 secret_current,
2468 secret_old,
2469 sd);
2470 }
2471
2472 static NTSTATUS pdb_default_delete_secret(struct pdb_methods *methods,
2473 const char *secret_name)
2474 {
2475 return lsa_secret_delete(secret_name);
2476 }
2477
2478 /*******************************************************************
2479 Create a pdb_methods structure and initialize it with the default
2480 operations. In this way a passdb module can simply implement
2481 the functionality it cares about. However, normally this is done
2482 in groups of related functions.
2483 *******************************************************************/
2484
2485 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2486 {
2487 /* allocate memory for the structure as its own talloc CTX */
2488
2489 *methods = talloc_zero(NULL, struct pdb_methods);
2490 if (*methods == NULL) {
2491 return NT_STATUS_NO_MEMORY;
2492 }
2493
2494 (*methods)->get_domain_info = pdb_default_get_domain_info;
2495 (*methods)->getsampwnam = pdb_default_getsampwnam;
2496 (*methods)->getsampwsid = pdb_default_getsampwsid;
2497 (*methods)->create_user = pdb_default_create_user;
2498 (*methods)->delete_user = pdb_default_delete_user;
2499 (*methods)->add_sam_account = pdb_default_add_sam_account;
2500 (*methods)->update_sam_account = pdb_default_update_sam_account;
2501 (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2502 (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2503 (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2504
2505 (*methods)->getgrsid = pdb_default_getgrsid;
2506 (*methods)->getgrgid = pdb_default_getgrgid;
2507 (*methods)->getgrnam = pdb_default_getgrnam;
2508 (*methods)->create_dom_group = pdb_default_create_dom_group;
2509 (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2510 (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2511 (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2512 (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2513 (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2514 (*methods)->enum_group_members = pdb_default_enum_group_members;
2515 (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2516 (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2517 (*methods)->add_groupmem = pdb_default_add_groupmem;
2518 (*methods)->del_groupmem = pdb_default_del_groupmem;
2519 (*methods)->create_alias = pdb_default_create_alias;
2520 (*methods)->delete_alias = pdb_default_delete_alias;
2521 (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2522 (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2523 (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2524 (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2525 (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2526 (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2527 (*methods)->lookup_rids = pdb_default_lookup_rids;
2528 (*methods)->get_account_policy = pdb_default_get_account_policy;
2529 (*methods)->set_account_policy = pdb_default_set_account_policy;
2530 (*methods)->get_seq_num = pdb_default_get_seq_num;
2531 (*methods)->uid_to_sid = pdb_default_uid_to_sid;
2532 (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2533 (*methods)->sid_to_id = pdb_default_sid_to_id;
2534
2535 (*methods)->search_groups = pdb_default_search_groups;
2536 (*methods)->search_aliases = pdb_default_search_aliases;
2537
2538 (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2539 (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2540 (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2541 (*methods)->enum_trusteddoms = pdb_default_enum_trusteddoms;
2542
2543 (*methods)->get_trusted_domain = pdb_default_get_trusted_domain;
2544 (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid;
2545 (*methods)->set_trusted_domain = pdb_default_set_trusted_domain;
2546 (*methods)->del_trusted_domain = pdb_default_del_trusted_domain;
2547 (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains;
2548
2549 (*methods)->get_secret = pdb_default_get_secret;
2550 (*methods)->set_secret = pdb_default_set_secret;
2551 (*methods)->delete_secret = pdb_default_delete_secret;
2552
2553 return NT_STATUS_OK;
2554 }
reg import