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s3-passdb: Implement new pdb trust calls for the default backend
[Samba/bjacke.git] / source3 / passdb / pdb_interface.c
blob94ed355e2c57dff373ddf45c455a135ea38bda6c
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 "../librpc/gen_ndr/samr.h"
28 #include "../librpc/gen_ndr/drsblobs.h"
29 #include "../librpc/gen_ndr/ndr_drsblobs.h"
30 #include "memcache.h"
31 #include "nsswitch/winbind_client.h"
32 #include "../libcli/security/security.h"
33 #include "../lib/util/util_pw.h"
34
35 #undef DBGC_CLASS
36 #define DBGC_CLASS DBGC_PASSDB
37
38 static_decl_pdb;
39
40 static struct pdb_init_function_entry *backends = NULL;
41
42 static void lazy_initialize_passdb(void)
43 {
44 static bool initialized = False;
45 if(initialized) {
46 return;
47 }
48 static_init_pdb;
49 initialized = True;
50 }
51
52 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32 rid,
53 const char **name,
54 enum lsa_SidType *psid_name_use,
55 union unid_t *unix_id);
56
57 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
58 {
59 struct pdb_init_function_entry *entry = backends;
60
61 if(version != PASSDB_INTERFACE_VERSION) {
62 DEBUG(0,("Can't register passdb backend!\n"
63 "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
64 "while this version of samba uses version %d\n",
65 version,PASSDB_INTERFACE_VERSION));
66 return NT_STATUS_OBJECT_TYPE_MISMATCH;
67 }
68
69 if (!name || !init) {
70 return NT_STATUS_INVALID_PARAMETER;
71 }
72
73 DEBUG(5,("Attempting to register passdb backend %s\n", name));
74
75 /* Check for duplicates */
76 if (pdb_find_backend_entry(name)) {
77 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
78 return NT_STATUS_OBJECT_NAME_COLLISION;
79 }
80
81 entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
82 entry->name = smb_xstrdup(name);
83 entry->init = init;
84
85 DLIST_ADD(backends, entry);
86 DEBUG(5,("Successfully added passdb backend '%s'\n", name));
87 return NT_STATUS_OK;
88 }
89
90 struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
91 {
92 struct pdb_init_function_entry *entry = backends;
93
94 while(entry) {
95 if (strcmp(entry->name, name)==0) return entry;
96 entry = entry->next;
97 }
98
99 return NULL;
100 }
101
102 /*
103 * The event context for the passdb backend. I know this is a bad hack and yet
104 * another static variable, but our pdb API is a global thing per
105 * definition. The first use for this is the LDAP idle function, more might be
106 * added later.
107 *
108 * I don't feel too bad about this static variable, it replaces the
109 * smb_idle_event_list that used to exist in lib/module.c. -- VL
110 */
111
112 static struct event_context *pdb_event_ctx;
113
114 struct event_context *pdb_get_event_context(void)
115 {
116 return pdb_event_ctx;
117 }
118
119 /******************************************************************
120 Make a pdb_methods from scratch
121 *******************************************************************/
122
123 NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected)
124 {
125 char *module_name = smb_xstrdup(selected);
126 char *module_location = NULL, *p;
127 struct pdb_init_function_entry *entry;
128 NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
129
130 lazy_initialize_passdb();
131
132 p = strchr(module_name, ':');
133
134 if (p) {
135 *p = 0;
136 module_location = p+1;
137 trim_char(module_location, ' ', ' ');
138 }
139
140 trim_char(module_name, ' ', ' ');
141
142
143 DEBUG(5,("Attempting to find a passdb backend to match %s (%s)\n", selected, module_name));
144
145 entry = pdb_find_backend_entry(module_name);
146
147 /* Try to find a module that contains this module */
148 if (!entry) {
149 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
150 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
151 DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
152 SAFE_FREE(module_name);
153 return NT_STATUS_UNSUCCESSFUL;
154 }
155 }
156
157 /* No such backend found */
158 if(!entry) {
159 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
160 SAFE_FREE(module_name);
161 return NT_STATUS_INVALID_PARAMETER;
162 }
163
164 DEBUG(5,("Found pdb backend %s\n", module_name));
165
166 if ( !NT_STATUS_IS_OK( nt_status = entry->init(methods, module_location) ) ) {
167 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n",
168 selected, nt_errstr(nt_status)));
169 SAFE_FREE(module_name);
170 return nt_status;
171 }
172
173 SAFE_FREE(module_name);
174
175 DEBUG(5,("pdb backend %s has a valid init\n", selected));
176
177 return nt_status;
178 }
179
180 /******************************************************************
181 Return an already initialized pdb_methods structure
182 *******************************************************************/
183
184 static struct pdb_methods *pdb_get_methods_reload( bool reload )
185 {
186 static struct pdb_methods *pdb = NULL;
187
188 if ( pdb && reload ) {
189 pdb->free_private_data( &(pdb->private_data) );
190 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
191 char *msg = NULL;
192 if (asprintf(&msg, "pdb_get_methods_reload: "
193 "failed to get pdb methods for backend %s\n",
194 lp_passdb_backend()) > 0) {
195 smb_panic(msg);
196 } else {
197 smb_panic("pdb_get_methods_reload");
198 }
199 }
200 }
201
202 if ( !pdb ) {
203 if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
204 char *msg = NULL;
205 if (asprintf(&msg, "pdb_get_methods_reload: "
206 "failed to get pdb methods for backend %s\n",
207 lp_passdb_backend()) > 0) {
208 smb_panic(msg);
209 } else {
210 smb_panic("pdb_get_methods_reload");
211 }
212 }
213 }
214
215 return pdb;
216 }
217
218 static struct pdb_methods *pdb_get_methods(void)
219 {
220 return pdb_get_methods_reload(False);
221 }
222
223 struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx)
224 {
225 struct pdb_methods *pdb = pdb_get_methods();
226 return pdb->get_domain_info(pdb, mem_ctx);
227 }
228
229 /**
230 * @brief Check if the user account has been locked out and try to unlock it.
231 *
232 * If the user has been automatically locked out and a lockout duration is set,
233 * then check if we can unlock the account and reset the bad password values.
234 *
235 * @param[in] sampass The sam user to check.
236 *
237 * @return True if the function was successfull, false on an error.
238 */
239 static bool pdb_try_account_unlock(struct samu *sampass)
240 {
241 uint32_t acb_info = pdb_get_acct_ctrl(sampass);
242
243 if ((acb_info & ACB_NORMAL) && (acb_info & ACB_AUTOLOCK)) {
244 uint32_t lockout_duration;
245 time_t bad_password_time;
246 time_t now = time(NULL);
247 bool ok;
248
249 ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION,
250 &lockout_duration);
251 if (!ok) {
252 DEBUG(0, ("pdb_try_account_unlock: "
253 "pdb_get_account_policy failed.\n"));
254 return false;
255 }
256
257 if (lockout_duration == (uint32_t) -1 ||
258 lockout_duration == 0) {
259 DEBUG(9, ("pdb_try_account_unlock: No reset duration, "
260 "can't reset autolock\n"));
261 return false;
262 }
263 lockout_duration *= 60;
264
265 bad_password_time = pdb_get_bad_password_time(sampass);
266 if (bad_password_time == (time_t) 0) {
267 DEBUG(2, ("pdb_try_account_unlock: Account %s "
268 "administratively locked out "
269 "with no bad password "
270 "time. Leaving locked out.\n",
271 pdb_get_username(sampass)));
272 return true;
273 }
274
275 if ((bad_password_time +
276 convert_uint32_t_to_time_t(lockout_duration)) < now) {
277 NTSTATUS status;
278
279 pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK,
280 PDB_CHANGED);
281 pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
282 pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
283
284 become_root();
285 status = pdb_update_sam_account(sampass);
286 unbecome_root();
287 if (!NT_STATUS_IS_OK(status)) {
288 DEBUG(0, ("_samr_OpenUser: Couldn't "
289 "update account %s - %s\n",
290 pdb_get_username(sampass),
291 nt_errstr(status)));
292 return false;
293 }
294 }
295 }
296
297 return true;
298 }
299
300 /**
301 * @brief Get a sam user structure by the given username.
302 *
303 * This functions also checks if the account has been automatically locked out
304 * and unlocks it if a lockout duration time has been defined and the time has
305 * elapsed.
306 *
307 * @param[in] sam_acct The sam user structure to fill.
308 *
309 * @param[in] username The username to look for.
310 *
311 * @return True on success, false on error.
312 */
313 bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
314 {
315 struct pdb_methods *pdb = pdb_get_methods();
316 struct samu *for_cache;
317 const struct dom_sid *user_sid;
318 NTSTATUS status;
319 bool ok;
320
321 status = pdb->getsampwnam(pdb, sam_acct, username);
322 if (!NT_STATUS_IS_OK(status)) {
323 return false;
324 }
325
326 ok = pdb_try_account_unlock(sam_acct);
327 if (!ok) {
328 DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n",
329 username));
330 }
331
332 for_cache = samu_new(NULL);
333 if (for_cache == NULL) {
334 return False;
335 }
336
337 if (!pdb_copy_sam_account(for_cache, sam_acct)) {
338 TALLOC_FREE(for_cache);
339 return False;
340 }
341
342 user_sid = pdb_get_user_sid(for_cache);
343
344 memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
345 data_blob_const(user_sid, sizeof(*user_sid)),
346 &for_cache);
347
348 return True;
349 }
350
351 /**********************************************************************
352 **********************************************************************/
353
354 static bool guest_user_info( struct samu *user )
355 {
356 struct passwd *pwd;
357 NTSTATUS result;
358 const char *guestname = lp_guestaccount();
359
360 pwd = Get_Pwnam_alloc(talloc_tos(), guestname);
361 if (pwd == NULL) {
362 DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
363 guestname));
364 return False;
365 }
366
367 result = samu_set_unix(user, pwd );
368
369 TALLOC_FREE( pwd );
370
371 return NT_STATUS_IS_OK( result );
372 }
373
374 /**
375 * @brief Get a sam user structure by the given username.
376 *
377 * This functions also checks if the account has been automatically locked out
378 * and unlocks it if a lockout duration time has been defined and the time has
379 * elapsed.
380 *
381 *
382 * @param[in] sam_acct The sam user structure to fill.
383 *
384 * @param[in] sid The user SDI to look up.
385 *
386 * @return True on success, false on error.
387 */
388 bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid)
389 {
390 struct pdb_methods *pdb = pdb_get_methods();
391 uint32_t rid;
392 void *cache_data;
393 bool ok = false;
394
395 /* hard code the Guest RID of 501 */
396
397 if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) )
398 return False;
399
400 if ( rid == DOMAIN_RID_GUEST ) {
401 DEBUG(6,("pdb_getsampwsid: Building guest account\n"));
402 return guest_user_info( sam_acct );
403 }
404
405 /* check the cache first */
406
407 cache_data = memcache_lookup_talloc(
408 NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
409
410 if (cache_data != NULL) {
411 struct samu *cache_copy = talloc_get_type_abort(
412 cache_data, struct samu);
413
414 ok = pdb_copy_sam_account(sam_acct, cache_copy);
415 } else {
416 ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
417 }
418
419 if (!ok) {
420 return false;
421 }
422
423 ok = pdb_try_account_unlock(sam_acct);
424 if (!ok) {
425 DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n",
426 sam_acct->username));
427 }
428
429 return true;
430 }
431
432 static NTSTATUS pdb_default_create_user(struct pdb_methods *methods,
433 TALLOC_CTX *tmp_ctx, const char *name,
434 uint32_t acb_info, uint32_t *rid)
435 {
436 struct samu *sam_pass;
437 NTSTATUS status;
438 struct passwd *pwd;
439
440 if ((sam_pass = samu_new(tmp_ctx)) == NULL) {
441 return NT_STATUS_NO_MEMORY;
442 }
443
444 if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) {
445 char *add_script = NULL;
446 int add_ret;
447 fstring name2;
448
449 if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') {
450 add_script = talloc_strdup(tmp_ctx,
451 lp_adduser_script());
452 } else {
453 add_script = talloc_strdup(tmp_ctx,
454 lp_addmachine_script());
455 }
456
457 if (!add_script || add_script[0] == '\0') {
458 DEBUG(3, ("Could not find user %s and no add script "
459 "defined\n", name));
460 return NT_STATUS_NO_SUCH_USER;
461 }
462
463 /* lowercase the username before creating the Unix account for
464 compatibility with previous Samba releases */
465 fstrcpy( name2, name );
466 strlower_m( name2 );
467 add_script = talloc_all_string_sub(tmp_ctx,
468 add_script,
469 "%u",
470 name2);
471 if (!add_script) {
472 return NT_STATUS_NO_MEMORY;
473 }
474 add_ret = smbrun(add_script,NULL);
475 DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n",
476 add_script, add_ret));
477 if (add_ret == 0) {
478 smb_nscd_flush_user_cache();
479 }
480
481 flush_pwnam_cache();
482
483 pwd = Get_Pwnam_alloc(tmp_ctx, name);
484
485 if(pwd == NULL) {
486 DEBUG(3, ("Could not find user %s, add script did not work\n", name));
487 return NT_STATUS_NO_SUCH_USER;
488 }
489 }
490
491 /* we have a valid SID coming out of this call */
492
493 status = samu_alloc_rid_unix( sam_pass, pwd );
494
495 TALLOC_FREE( pwd );
496
497 if (!NT_STATUS_IS_OK(status)) {
498 DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status)));
499 return status;
500 }
501
502 if (!sid_peek_check_rid(get_global_sam_sid(),
503 pdb_get_user_sid(sam_pass), rid)) {
504 DEBUG(0, ("Could not get RID of fresh user\n"));
505 return NT_STATUS_INTERNAL_ERROR;
506 }
507
508 /* Use the username case specified in the original request */
509
510 pdb_set_username( sam_pass, name, PDB_SET );
511
512 /* Disable the account on creation, it does not have a reasonable password yet. */
513
514 acb_info |= ACB_DISABLED;
515
516 pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED);
517
518 status = pdb_add_sam_account(sam_pass);
519
520 TALLOC_FREE(sam_pass);
521
522 return status;
523 }
524
525 NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags,
526 uint32_t *rid)
527 {
528 struct pdb_methods *pdb = pdb_get_methods();
529 return pdb->create_user(pdb, mem_ctx, name, flags, rid);
530 }
531
532 /****************************************************************************
533 Delete a UNIX user on demand.
534 ****************************************************************************/
535
536 static int smb_delete_user(const char *unix_user)
537 {
538 char *del_script = NULL;
539 int ret;
540
541 /* safety check */
542
543 if ( strequal( unix_user, "root" ) ) {
544 DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n"));
545 return -1;
546 }
547
548 del_script = talloc_strdup(talloc_tos(), lp_deluser_script());
549 if (!del_script || !*del_script) {
550 return -1;
551 }
552 del_script = talloc_all_string_sub(talloc_tos(),
553 del_script,
554 "%u",
555 unix_user);
556 if (!del_script) {
557 return -1;
558 }
559 ret = smbrun(del_script,NULL);
560 flush_pwnam_cache();
561 if (ret == 0) {
562 smb_nscd_flush_user_cache();
563 }
564 DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret));
565
566 return ret;
567 }
568
569 static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods,
570 TALLOC_CTX *mem_ctx,
571 struct samu *sam_acct)
572 {
573 NTSTATUS status;
574 fstring username;
575
576 status = pdb_delete_sam_account(sam_acct);
577 if (!NT_STATUS_IS_OK(status)) {
578 return status;
579 }
580
581 /*
582 * Now delete the unix side ....
583 * note: we don't check if the delete really happened as the script is
584 * not necessary present and maybe the sysadmin doesn't want to delete
585 * the unix side
586 */
587
588 /* always lower case the username before handing it off to
589 external scripts */
590
591 fstrcpy( username, pdb_get_username(sam_acct) );
592 strlower_m( username );
593
594 smb_delete_user( username );
595
596 return status;
597 }
598
599 NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct)
600 {
601 struct pdb_methods *pdb = pdb_get_methods();
602 uid_t uid = -1;
603
604 /* sanity check to make sure we don't delete root */
605
606 if ( !sid_to_uid( pdb_get_user_sid(sam_acct), &uid ) ) {
607 return NT_STATUS_NO_SUCH_USER;
608 }
609
610 if ( uid == 0 ) {
611 return NT_STATUS_ACCESS_DENIED;
612 }
613
614 return pdb->delete_user(pdb, mem_ctx, sam_acct);
615 }
616
617 NTSTATUS pdb_add_sam_account(struct samu *sam_acct)
618 {
619 struct pdb_methods *pdb = pdb_get_methods();
620 return pdb->add_sam_account(pdb, sam_acct);
621 }
622
623 NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
624 {
625 struct pdb_methods *pdb = pdb_get_methods();
626
627 memcache_flush(NULL, PDB_GETPWSID_CACHE);
628
629 return pdb->update_sam_account(pdb, sam_acct);
630 }
631
632 NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
633 {
634 struct pdb_methods *pdb = pdb_get_methods();
635
636 memcache_flush(NULL, PDB_GETPWSID_CACHE);
637
638 return pdb->delete_sam_account(pdb, sam_acct);
639 }
640
641 NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
642 {
643 struct pdb_methods *pdb = pdb_get_methods();
644 uid_t uid;
645 NTSTATUS status;
646
647 memcache_flush(NULL, PDB_GETPWSID_CACHE);
648
649 /* sanity check to make sure we don't rename root */
650
651 if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) {
652 return NT_STATUS_NO_SUCH_USER;
653 }
654
655 if ( uid == 0 ) {
656 return NT_STATUS_ACCESS_DENIED;
657 }
658
659 status = pdb->rename_sam_account(pdb, oldname, newname);
660
661 /* always flush the cache here just to be safe */
662 flush_pwnam_cache();
663
664 return status;
665 }
666
667 NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success)
668 {
669 struct pdb_methods *pdb = pdb_get_methods();
670 return pdb->update_login_attempts(pdb, sam_acct, success);
671 }
672
673 bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid)
674 {
675 struct pdb_methods *pdb = pdb_get_methods();
676 return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid));
677 }
678
679 bool pdb_getgrgid(GROUP_MAP *map, gid_t gid)
680 {
681 struct pdb_methods *pdb = pdb_get_methods();
682 return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid));
683 }
684
685 bool pdb_getgrnam(GROUP_MAP *map, const char *name)
686 {
687 struct pdb_methods *pdb = pdb_get_methods();
688 return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name));
689 }
690
691 static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods,
692 TALLOC_CTX *mem_ctx,
693 const char *name,
694 uint32_t *rid)
695 {
696 struct dom_sid group_sid;
697 struct group *grp;
698 fstring tmp;
699
700 grp = getgrnam(name);
701
702 if (grp == NULL) {
703 gid_t gid;
704
705 if (smb_create_group(name, &gid) != 0) {
706 return NT_STATUS_ACCESS_DENIED;
707 }
708
709 grp = getgrgid(gid);
710 }
711
712 if (grp == NULL) {
713 return NT_STATUS_ACCESS_DENIED;
714 }
715
716 if (pdb_capabilities() & PDB_CAP_STORE_RIDS) {
717 if (!pdb_new_rid(rid)) {
718 return NT_STATUS_ACCESS_DENIED;
719 }
720 } else {
721 *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid );
722 }
723
724 sid_compose(&group_sid, get_global_sam_sid(), *rid);
725
726 return add_initial_entry(grp->gr_gid, sid_to_fstring(tmp, &group_sid),
727 SID_NAME_DOM_GRP, name, NULL);
728 }
729
730 NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name,
731 uint32_t *rid)
732 {
733 struct pdb_methods *pdb = pdb_get_methods();
734 return pdb->create_dom_group(pdb, mem_ctx, name, rid);
735 }
736
737 static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods,
738 TALLOC_CTX *mem_ctx,
739 uint32_t rid)
740 {
741 struct dom_sid group_sid;
742 GROUP_MAP map;
743 NTSTATUS status;
744 struct group *grp;
745 const char *grp_name;
746
747 /* coverity */
748 map.gid = (gid_t) -1;
749
750 sid_compose(&group_sid, get_global_sam_sid(), rid);
751
752 if (!get_domain_group_from_sid(group_sid, &map)) {
753 DEBUG(10, ("Could not find group for rid %d\n", rid));
754 return NT_STATUS_NO_SUCH_GROUP;
755 }
756
757 /* We need the group name for the smb_delete_group later on */
758
759 if (map.gid == (gid_t)-1) {
760 return NT_STATUS_NO_SUCH_GROUP;
761 }
762
763 grp = getgrgid(map.gid);
764 if (grp == NULL) {
765 return NT_STATUS_NO_SUCH_GROUP;
766 }
767
768 /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */
769
770 grp_name = talloc_strdup(mem_ctx, grp->gr_name);
771 if (grp_name == NULL) {
772 return NT_STATUS_NO_MEMORY;
773 }
774
775 status = pdb_delete_group_mapping_entry(group_sid);
776
777 if (!NT_STATUS_IS_OK(status)) {
778 return status;
779 }
780
781 /* Don't check the result of smb_delete_group */
782
783 smb_delete_group(grp_name);
784
785 return NT_STATUS_OK;
786 }
787
788 NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid)
789 {
790 struct pdb_methods *pdb = pdb_get_methods();
791 return pdb->delete_dom_group(pdb, mem_ctx, rid);
792 }
793
794 NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map)
795 {
796 struct pdb_methods *pdb = pdb_get_methods();
797 return pdb->add_group_mapping_entry(pdb, map);
798 }
799
800 NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map)
801 {
802 struct pdb_methods *pdb = pdb_get_methods();
803 return pdb->update_group_mapping_entry(pdb, map);
804 }
805
806 NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid)
807 {
808 struct pdb_methods *pdb = pdb_get_methods();
809 return pdb->delete_group_mapping_entry(pdb, sid);
810 }
811
812 bool pdb_enum_group_mapping(const struct dom_sid *sid, enum lsa_SidType sid_name_use, GROUP_MAP **pp_rmap,
813 size_t *p_num_entries, bool unix_only)
814 {
815 struct pdb_methods *pdb = pdb_get_methods();
816 return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use,
817 pp_rmap, p_num_entries, unix_only));
818 }
819
820 NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
821 const struct dom_sid *sid,
822 uint32_t **pp_member_rids,
823 size_t *p_num_members)
824 {
825 struct pdb_methods *pdb = pdb_get_methods();
826 NTSTATUS result;
827
828 result = pdb->enum_group_members(pdb, mem_ctx,
829 sid, pp_member_rids, p_num_members);
830
831 /* special check for rid 513 */
832
833 if ( !NT_STATUS_IS_OK( result ) ) {
834 uint32_t rid;
835
836 sid_peek_rid( sid, &rid );
837
838 if ( rid == DOMAIN_RID_USERS ) {
839 *p_num_members = 0;
840 *pp_member_rids = NULL;
841
842 return NT_STATUS_OK;
843 }
844 }
845
846 return result;
847 }
848
849 NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user,
850 struct dom_sid **pp_sids, gid_t **pp_gids,
851 uint32_t *p_num_groups)
852 {
853 struct pdb_methods *pdb = pdb_get_methods();
854 return pdb->enum_group_memberships(
855 pdb, mem_ctx, user,
856 pp_sids, pp_gids, p_num_groups);
857 }
858
859 static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods,
860 TALLOC_CTX *mem_ctx,
861 struct samu *sampass)
862 {
863 struct group *grp;
864 gid_t gid;
865
866 if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) ||
867 (grp = getgrgid(gid)) == NULL) {
868 return NT_STATUS_INVALID_PRIMARY_GROUP;
869 }
870
871 if (smb_set_primary_group(grp->gr_name,
872 pdb_get_username(sampass)) != 0) {
873 return NT_STATUS_ACCESS_DENIED;
874 }
875
876 return NT_STATUS_OK;
877 }
878
879 NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user)
880 {
881 struct pdb_methods *pdb = pdb_get_methods();
882 return pdb->set_unix_primary_group(pdb, mem_ctx, user);
883 }
884
885 /*
886 * Helper function to see whether a user is in a group. We can't use
887 * user_in_group_sid here because this creates dependencies only smbd can
888 * fulfil.
889 */
890
891 static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account,
892 const struct dom_sid *group_sid)
893 {
894 struct dom_sid *sids;
895 gid_t *gids;
896 uint32_t i, num_groups;
897
898 if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account,
899 &sids, &gids,
900 &num_groups))) {
901 return False;
902 }
903
904 for (i=0; i<num_groups; i++) {
905 if (dom_sid_equal(group_sid, &sids[i])) {
906 return True;
907 }
908 }
909 return False;
910 }
911
912 static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods,
913 TALLOC_CTX *mem_ctx,
914 uint32_t group_rid,
915 uint32_t member_rid)
916 {
917 struct dom_sid group_sid, member_sid;
918 struct samu *account = NULL;
919 GROUP_MAP map;
920 struct group *grp;
921 struct passwd *pwd;
922 const char *group_name;
923 uid_t uid;
924
925 /* coverity */
926 map.gid = (gid_t) -1;
927
928 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
929 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
930
931 if (!get_domain_group_from_sid(group_sid, &map) ||
932 (map.gid == (gid_t)-1) ||
933 ((grp = getgrgid(map.gid)) == NULL)) {
934 return NT_STATUS_NO_SUCH_GROUP;
935 }
936
937 group_name = talloc_strdup(mem_ctx, grp->gr_name);
938 if (group_name == NULL) {
939 return NT_STATUS_NO_MEMORY;
940 }
941
942 if ( !(account = samu_new( NULL )) ) {
943 return NT_STATUS_NO_MEMORY;
944 }
945
946 if (!pdb_getsampwsid(account, &member_sid) ||
947 !sid_to_uid(&member_sid, &uid) ||
948 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
949 return NT_STATUS_NO_SUCH_USER;
950 }
951
952 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
953 return NT_STATUS_MEMBER_IN_GROUP;
954 }
955
956 /*
957 * ok, the group exist, the user exist, the user is not in the group,
958 * we can (finally) add it to the group !
959 */
960
961 smb_add_user_group(group_name, pwd->pw_name);
962
963 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
964 return NT_STATUS_ACCESS_DENIED;
965 }
966
967 return NT_STATUS_OK;
968 }
969
970 NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
971 uint32_t member_rid)
972 {
973 struct pdb_methods *pdb = pdb_get_methods();
974 return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid);
975 }
976
977 static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods,
978 TALLOC_CTX *mem_ctx,
979 uint32_t group_rid,
980 uint32_t member_rid)
981 {
982 struct dom_sid group_sid, member_sid;
983 struct samu *account = NULL;
984 GROUP_MAP map;
985 struct group *grp;
986 struct passwd *pwd;
987 const char *group_name;
988 uid_t uid;
989
990 sid_compose(&group_sid, get_global_sam_sid(), group_rid);
991 sid_compose(&member_sid, get_global_sam_sid(), member_rid);
992
993 if (!get_domain_group_from_sid(group_sid, &map) ||
994 (map.gid == (gid_t)-1) ||
995 ((grp = getgrgid(map.gid)) == NULL)) {
996 return NT_STATUS_NO_SUCH_GROUP;
997 }
998
999 group_name = talloc_strdup(mem_ctx, grp->gr_name);
1000 if (group_name == NULL) {
1001 return NT_STATUS_NO_MEMORY;
1002 }
1003
1004 if ( !(account = samu_new( NULL )) ) {
1005 return NT_STATUS_NO_MEMORY;
1006 }
1007
1008 if (!pdb_getsampwsid(account, &member_sid) ||
1009 !sid_to_uid(&member_sid, &uid) ||
1010 ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) {
1011 return NT_STATUS_NO_SUCH_USER;
1012 }
1013
1014 if (!pdb_user_in_group(mem_ctx, account, &group_sid)) {
1015 return NT_STATUS_MEMBER_NOT_IN_GROUP;
1016 }
1017
1018 /*
1019 * ok, the group exist, the user exist, the user is in the group,
1020 * we can (finally) delete it from the group!
1021 */
1022
1023 smb_delete_user_group(group_name, pwd->pw_name);
1024
1025 if (pdb_user_in_group(mem_ctx, account, &group_sid)) {
1026 return NT_STATUS_ACCESS_DENIED;
1027 }
1028
1029 return NT_STATUS_OK;
1030 }
1031
1032 NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid,
1033 uint32_t member_rid)
1034 {
1035 struct pdb_methods *pdb = pdb_get_methods();
1036 return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid);
1037 }
1038
1039 NTSTATUS pdb_create_alias(const char *name, uint32_t *rid)
1040 {
1041 struct pdb_methods *pdb = pdb_get_methods();
1042 return pdb->create_alias(pdb, name, rid);
1043 }
1044
1045 NTSTATUS pdb_delete_alias(const struct dom_sid *sid)
1046 {
1047 struct pdb_methods *pdb = pdb_get_methods();
1048 return pdb->delete_alias(pdb, sid);
1049 }
1050
1051 NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1052 {
1053 struct pdb_methods *pdb = pdb_get_methods();
1054 return pdb->get_aliasinfo(pdb, sid, info);
1055 }
1056
1057 NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info)
1058 {
1059 struct pdb_methods *pdb = pdb_get_methods();
1060 return pdb->set_aliasinfo(pdb, sid, info);
1061 }
1062
1063 NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1064 {
1065 struct pdb_methods *pdb = pdb_get_methods();
1066 return pdb->add_aliasmem(pdb, alias, member);
1067 }
1068
1069 NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member)
1070 {
1071 struct pdb_methods *pdb = pdb_get_methods();
1072 return pdb->del_aliasmem(pdb, alias, member);
1073 }
1074
1075 NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
1076 struct dom_sid **pp_members, size_t *p_num_members)
1077 {
1078 struct pdb_methods *pdb = pdb_get_methods();
1079 return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members,
1080 p_num_members);
1081 }
1082
1083 NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx,
1084 const struct dom_sid *domain_sid,
1085 const struct dom_sid *members, size_t num_members,
1086 uint32_t **pp_alias_rids,
1087 size_t *p_num_alias_rids)
1088 {
1089 struct pdb_methods *pdb = pdb_get_methods();
1090 return pdb->enum_alias_memberships(pdb, mem_ctx,
1091 domain_sid,
1092 members, num_members,
1093 pp_alias_rids,
1094 p_num_alias_rids);
1095 }
1096
1097 NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid,
1098 int num_rids,
1099 uint32_t *rids,
1100 const char **names,
1101 enum lsa_SidType *attrs)
1102 {
1103 struct pdb_methods *pdb = pdb_get_methods();
1104 return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs);
1105 }
1106
1107 /*
1108 * NOTE: pdb_lookup_names is currently (2007-01-12) not used anywhere
1109 * in the samba code.
1110 * Unlike _lsa_lookup_sids and _samr_lookup_rids, which eventually
1111 * also ask pdb_lookup_rids, thus looking up a bunch of rids at a time,
1112 * the pdb_ calls _lsa_lookup_names and _samr_lookup_names come
1113 * down to are pdb_getsampwnam and pdb_getgrnam instead of
1114 * pdb_lookup_names.
1115 * But in principle, it the call belongs to the API and might get
1116 * used in this context some day.
1117 */
1118 #if 0
1119 NTSTATUS pdb_lookup_names(const struct dom_sid *domain_sid,
1120 int num_names,
1121 const char **names,
1122 uint32_t *rids,
1123 enum lsa_SidType *attrs)
1124 {
1125 struct pdb_methods *pdb = pdb_get_methods();
1126 return pdb->lookup_names(pdb, domain_sid, num_names, names, rids, attrs);
1127 }
1128 #endif
1129
1130 bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value)
1131 {
1132 struct pdb_methods *pdb = pdb_get_methods();
1133 NTSTATUS status;
1134
1135 become_root();
1136 status = pdb->get_account_policy(pdb, type, value);
1137 unbecome_root();
1138
1139 return NT_STATUS_IS_OK(status);
1140 }
1141
1142 bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value)
1143 {
1144 struct pdb_methods *pdb = pdb_get_methods();
1145 NTSTATUS status;
1146
1147 become_root();
1148 status = pdb->set_account_policy(pdb, type, value);
1149 unbecome_root();
1150
1151 return NT_STATUS_IS_OK(status);
1152 }
1153
1154 bool pdb_get_seq_num(time_t *seq_num)
1155 {
1156 struct pdb_methods *pdb = pdb_get_methods();
1157 return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num));
1158 }
1159
1160 bool pdb_uid_to_sid(uid_t uid, struct dom_sid *sid)
1161 {
1162 struct pdb_methods *pdb = pdb_get_methods();
1163 return pdb->uid_to_sid(pdb, uid, sid);
1164 }
1165
1166 bool pdb_gid_to_sid(gid_t gid, struct dom_sid *sid)
1167 {
1168 struct pdb_methods *pdb = pdb_get_methods();
1169 return pdb->gid_to_sid(pdb, gid, sid);
1170 }
1171
1172 bool pdb_sid_to_id(const struct dom_sid *sid, union unid_t *id,
1173 enum lsa_SidType *type)
1174 {
1175 struct pdb_methods *pdb = pdb_get_methods();
1176 return pdb->sid_to_id(pdb, sid, id, type);
1177 }
1178
1179 uint32_t pdb_capabilities(void)
1180 {
1181 struct pdb_methods *pdb = pdb_get_methods();
1182 return pdb->capabilities(pdb);
1183 }
1184
1185 /********************************************************************
1186 Allocate a new RID from the passdb backend. Verify that it is free
1187 by calling lookup_global_sam_rid() to verify that the RID is not
1188 in use. This handles servers that have existing users or groups
1189 with add RIDs (assigned from previous algorithmic mappings)
1190 ********************************************************************/
1191
1192 bool pdb_new_rid(uint32_t *rid)
1193 {
1194 struct pdb_methods *pdb = pdb_get_methods();
1195 const char *name = NULL;
1196 enum lsa_SidType type;
1197 uint32_t allocated_rid = 0;
1198 int i;
1199 TALLOC_CTX *ctx;
1200
1201 if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) {
1202 DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs "
1203 "are active\n"));
1204 return False;
1205 }
1206
1207 if (algorithmic_rid_base() != BASE_RID) {
1208 DEBUG(0, ("'algorithmic rid base' is set but a passdb backend "
1209 "without algorithmic RIDs is chosen.\n"));
1210 DEBUGADD(0, ("Please map all used groups using 'net groupmap "
1211 "add', set the maximum used RID\n"));
1212 DEBUGADD(0, ("and remove the parameter\n"));
1213 return False;
1214 }
1215
1216 if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) {
1217 DEBUG(0,("pdb_new_rid: Talloc initialization failure\n"));
1218 return False;
1219 }
1220
1221 /* Attempt to get an unused RID (max tires is 250...yes that it is
1222 and arbitrary number I pulkled out of my head). -- jerry */
1223
1224 for ( i=0; allocated_rid==0 && i<250; i++ ) {
1225 /* get a new RID */
1226
1227 if ( !pdb->new_rid(pdb, &allocated_rid) ) {
1228 return False;
1229 }
1230
1231 /* validate that the RID is not in use */
1232
1233 if ( lookup_global_sam_rid( ctx, allocated_rid, &name, &type, NULL ) ) {
1234 allocated_rid = 0;
1235 }
1236 }
1237
1238 TALLOC_FREE( ctx );
1239
1240 if ( allocated_rid == 0 ) {
1241 DEBUG(0,("pdb_new_rid: Failed to find unused RID\n"));
1242 return False;
1243 }
1244
1245 *rid = allocated_rid;
1246
1247 return True;
1248 }
1249
1250 /***************************************************************
1251 Initialize the static context (at smbd startup etc).
1252
1253 If uninitialised, context will auto-init on first use.
1254 ***************************************************************/
1255
1256 bool initialize_password_db(bool reload, struct event_context *event_ctx)
1257 {
1258 pdb_event_ctx = event_ctx;
1259 return (pdb_get_methods_reload(reload) != NULL);
1260 }
1261
1262
1263 /***************************************************************************
1264 Default implementations of some functions.
1265 ****************************************************************************/
1266
1267 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname)
1268 {
1269 return NT_STATUS_NO_SUCH_USER;
1270 }
1271
1272 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1273 {
1274 return NT_STATUS_NO_SUCH_USER;
1275 }
1276
1277 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1278 {
1279 return NT_STATUS_NOT_IMPLEMENTED;
1280 }
1281
1282 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd)
1283 {
1284 return NT_STATUS_NOT_IMPLEMENTED;
1285 }
1286
1287 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd)
1288 {
1289 return NT_STATUS_NOT_IMPLEMENTED;
1290 }
1291
1292 static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname)
1293 {
1294 return NT_STATUS_NOT_IMPLEMENTED;
1295 }
1296
1297 static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success)
1298 {
1299 /* Only the pdb_nds backend implements this, by
1300 * default just return ok. */
1301 return NT_STATUS_OK;
1302 }
1303
1304 static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value)
1305 {
1306 return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1307 }
1308
1309 static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value)
1310 {
1311 return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
1312 }
1313
1314 static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num)
1315 {
1316 *seq_num = time(NULL);
1317 return NT_STATUS_OK;
1318 }
1319
1320 static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid,
1321 struct dom_sid *sid)
1322 {
1323 struct samu *sampw = NULL;
1324 struct passwd *unix_pw;
1325 bool ret;
1326
1327 unix_pw = sys_getpwuid( uid );
1328
1329 if ( !unix_pw ) {
1330 DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid "
1331 "%lu\n", (unsigned long)uid));
1332 return False;
1333 }
1334
1335 if ( !(sampw = samu_new( NULL )) ) {
1336 DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n"));
1337 return False;
1338 }
1339
1340 become_root();
1341 ret = NT_STATUS_IS_OK(
1342 methods->getsampwnam(methods, sampw, unix_pw->pw_name ));
1343 unbecome_root();
1344
1345 if (!ret) {
1346 DEBUG(5, ("pdb_default_uid_to_sid: Did not find user "
1347 "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid));
1348 TALLOC_FREE(sampw);
1349 return False;
1350 }
1351
1352 sid_copy(sid, pdb_get_user_sid(sampw));
1353
1354 TALLOC_FREE(sampw);
1355
1356 return True;
1357 }
1358
1359 static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid,
1360 struct dom_sid *sid)
1361 {
1362 GROUP_MAP map;
1363
1364 if (!NT_STATUS_IS_OK(methods->getgrgid(methods, &map, gid))) {
1365 return False;
1366 }
1367
1368 sid_copy(sid, &map.sid);
1369 return True;
1370 }
1371
1372 static bool pdb_default_sid_to_id(struct pdb_methods *methods,
1373 const struct dom_sid *sid,
1374 union unid_t *id, enum lsa_SidType *type)
1375 {
1376 TALLOC_CTX *mem_ctx;
1377 bool ret = False;
1378 const char *name;
1379 uint32_t rid;
1380
1381 mem_ctx = talloc_new(NULL);
1382
1383 if (mem_ctx == NULL) {
1384 DEBUG(0, ("talloc_new failed\n"));
1385 return False;
1386 }
1387
1388 if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) {
1389 /* Here we might have users as well as groups and aliases */
1390 ret = lookup_global_sam_rid(mem_ctx, rid, &name, type, id);
1391 goto done;
1392 }
1393
1394 /* check for "Unix User" */
1395
1396 if ( sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid) ) {
1397 id->uid = rid;
1398 *type = SID_NAME_USER;
1399 ret = True;
1400 goto done;
1401 }
1402
1403 /* check for "Unix Group" */
1404
1405 if ( sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid) ) {
1406 id->gid = rid;
1407 *type = SID_NAME_ALIAS;
1408 ret = True;
1409 goto done;
1410 }
1411
1412 /* BUILTIN */
1413
1414 if (sid_check_is_in_builtin(sid) ||
1415 sid_check_is_in_wellknown_domain(sid)) {
1416 /* Here we only have aliases */
1417 GROUP_MAP map;
1418 if (!NT_STATUS_IS_OK(methods->getgrsid(methods, &map, *sid))) {
1419 DEBUG(10, ("Could not find map for sid %s\n",
1420 sid_string_dbg(sid)));
1421 goto done;
1422 }
1423 if ((map.sid_name_use != SID_NAME_ALIAS) &&
1424 (map.sid_name_use != SID_NAME_WKN_GRP)) {
1425 DEBUG(10, ("Map for sid %s is a %s, expected an "
1426 "alias\n", sid_string_dbg(sid),
1427 sid_type_lookup(map.sid_name_use)));
1428 goto done;
1429 }
1430
1431 id->gid = map.gid;
1432 *type = SID_NAME_ALIAS;
1433 ret = True;
1434 goto done;
1435 }
1436
1437 DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n",
1438 sid_string_dbg(sid)));
1439
1440 done:
1441
1442 TALLOC_FREE(mem_ctx);
1443 return ret;
1444 }
1445
1446 static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num)
1447 {
1448 struct group *grp;
1449 char **gr;
1450 struct passwd *pwd;
1451 bool winbind_env;
1452 bool ret = False;
1453
1454 *pp_uids = NULL;
1455 *p_num = 0;
1456
1457 /* We only look at our own sam, so don't care about imported stuff */
1458 winbind_env = winbind_env_set();
1459 (void)winbind_off();
1460
1461 if ((grp = getgrgid(gid)) == NULL) {
1462 /* allow winbindd lookups, but only if they weren't already disabled */
1463 goto done;
1464 }
1465
1466 /* Primary group members */
1467 setpwent();
1468 while ((pwd = getpwent()) != NULL) {
1469 if (pwd->pw_gid == gid) {
1470 if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid,
1471 pp_uids, p_num)) {
1472 goto done;
1473 }
1474 }
1475 }
1476 endpwent();
1477
1478 /* Secondary group members */
1479 for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
1480 struct passwd *pw = getpwnam(*gr);
1481
1482 if (pw == NULL)
1483 continue;
1484 if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) {
1485 goto done;
1486 }
1487 }
1488
1489 ret = True;
1490
1491 done:
1492
1493 /* allow winbindd lookups, but only if they weren't already disabled */
1494 if (!winbind_env) {
1495 (void)winbind_on();
1496 }
1497
1498 return ret;
1499 }
1500
1501 static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
1502 TALLOC_CTX *mem_ctx,
1503 const struct dom_sid *group,
1504 uint32_t **pp_member_rids,
1505 size_t *p_num_members)
1506 {
1507 gid_t gid;
1508 uid_t *uids;
1509 uint32_t i, num_uids;
1510
1511 *pp_member_rids = NULL;
1512 *p_num_members = 0;
1513
1514 if (!sid_to_gid(group, &gid))
1515 return NT_STATUS_NO_SUCH_GROUP;
1516
1517 if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
1518 return NT_STATUS_NO_SUCH_GROUP;
1519
1520 if (num_uids == 0)
1521 return NT_STATUS_OK;
1522
1523 *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids);
1524
1525 for (i=0; i<num_uids; i++) {
1526 struct dom_sid sid;
1527
1528 uid_to_sid(&sid, uids[i]);
1529
1530 if (!sid_check_is_in_our_domain(&sid)) {
1531 DEBUG(5, ("Inconsistent SAM -- group member uid not "
1532 "in our domain\n"));
1533 continue;
1534 }
1535
1536 sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]);
1537 *p_num_members += 1;
1538 }
1539
1540 return NT_STATUS_OK;
1541 }
1542
1543 static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
1544 TALLOC_CTX *mem_ctx,
1545 struct samu *user,
1546 struct dom_sid **pp_sids,
1547 gid_t **pp_gids,
1548 uint32_t *p_num_groups)
1549 {
1550 size_t i;
1551 gid_t gid;
1552 struct passwd *pw;
1553 const char *username = pdb_get_username(user);
1554
1555
1556 /* Ignore the primary group SID. Honor the real Unix primary group.
1557 The primary group SID is only of real use to Windows clients */
1558
1559 if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
1560 return NT_STATUS_NO_SUCH_USER;
1561 }
1562
1563 gid = pw->pw_gid;
1564
1565 TALLOC_FREE( pw );
1566
1567 if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) {
1568 return NT_STATUS_NO_SUCH_USER;
1569 }
1570
1571 if (*p_num_groups == 0) {
1572 smb_panic("primary group missing");
1573 }
1574
1575 *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups);
1576
1577 if (*pp_sids == NULL) {
1578 TALLOC_FREE(*pp_gids);
1579 return NT_STATUS_NO_MEMORY;
1580 }
1581
1582 for (i=0; i<*p_num_groups; i++) {
1583 gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]);
1584 }
1585
1586 return NT_STATUS_OK;
1587 }
1588
1589 /*******************************************************************
1590 Look up a rid in the SAM we're responsible for (i.e. passdb)
1591 ********************************************************************/
1592
1593 static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid,
1594 const char **name,
1595 enum lsa_SidType *psid_name_use,
1596 union unid_t *unix_id)
1597 {
1598 struct samu *sam_account = NULL;
1599 GROUP_MAP map;
1600 bool ret;
1601 struct dom_sid sid;
1602
1603 *psid_name_use = SID_NAME_UNKNOWN;
1604
1605 DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
1606 (unsigned int)rid));
1607
1608 sid_compose(&sid, get_global_sam_sid(), rid);
1609
1610 /* see if the passdb can help us with the name of the user */
1611
1612 if ( !(sam_account = samu_new( NULL )) ) {
1613 return False;
1614 }
1615
1616 /* BEING ROOT BLOCK */
1617 become_root();
1618 if (pdb_getsampwsid(sam_account, &sid)) {
1619 struct passwd *pw;
1620
1621 unbecome_root(); /* -----> EXIT BECOME_ROOT() */
1622 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
1623 if (!*name) {
1624 TALLOC_FREE(sam_account);
1625 return False;
1626 }
1627
1628 *psid_name_use = SID_NAME_USER;
1629
1630 TALLOC_FREE(sam_account);
1631
1632 if (unix_id == NULL) {
1633 return True;
1634 }
1635
1636 pw = Get_Pwnam_alloc(talloc_tos(), *name);
1637 if (pw == NULL) {
1638 return False;
1639 }
1640 unix_id->uid = pw->pw_uid;
1641 TALLOC_FREE(pw);
1642 return True;
1643 }
1644 TALLOC_FREE(sam_account);
1645
1646 ret = pdb_getgrsid(&map, sid);
1647 unbecome_root();
1648 /* END BECOME_ROOT BLOCK */
1649
1650 /* do not resolve SIDs to a name unless there is a valid
1651 gid associated with it */
1652
1653 if ( ret && (map.gid != (gid_t)-1) ) {
1654 *name = talloc_strdup(mem_ctx, map.nt_name);
1655 *psid_name_use = map.sid_name_use;
1656
1657 if ( unix_id ) {
1658 unix_id->gid = map.gid;
1659 }
1660
1661 return True;
1662 }
1663
1664 /* Windows will always map RID 513 to something. On a non-domain
1665 controller, this gets mapped to SERVER\None. */
1666
1667 if ( unix_id ) {
1668 DEBUG(5, ("Can't find a unix id for an unmapped group\n"));
1669 return False;
1670 }
1671
1672 if ( rid == DOMAIN_RID_USERS ) {
1673 *name = talloc_strdup(mem_ctx, "None" );
1674 *psid_name_use = SID_NAME_DOM_GRP;
1675
1676 return True;
1677 }
1678
1679 return False;
1680 }
1681
1682 static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
1683 const struct dom_sid *domain_sid,
1684 int num_rids,
1685 uint32_t *rids,
1686 const char **names,
1687 enum lsa_SidType *attrs)
1688 {
1689 int i;
1690 NTSTATUS result;
1691 bool have_mapped = False;
1692 bool have_unmapped = False;
1693
1694 if (sid_check_is_builtin(domain_sid)) {
1695
1696 for (i=0; i<num_rids; i++) {
1697 const char *name;
1698
1699 if (lookup_builtin_rid(names, rids[i], &name)) {
1700 attrs[i] = SID_NAME_ALIAS;
1701 names[i] = name;
1702 DEBUG(5,("lookup_rids: %s:%d\n",
1703 names[i], attrs[i]));
1704 have_mapped = True;
1705 } else {
1706 have_unmapped = True;
1707 attrs[i] = SID_NAME_UNKNOWN;
1708 }
1709 }
1710 goto done;
1711 }
1712
1713 /* Should not happen, but better check once too many */
1714 if (!sid_check_is_domain(domain_sid)) {
1715 return NT_STATUS_INVALID_HANDLE;
1716 }
1717
1718 for (i = 0; i < num_rids; i++) {
1719 const char *name;
1720
1721 if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i],
1722 NULL)) {
1723 if (name == NULL) {
1724 return NT_STATUS_NO_MEMORY;
1725 }
1726 names[i] = name;
1727 DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i]));
1728 have_mapped = True;
1729 } else {
1730 have_unmapped = True;
1731 attrs[i] = SID_NAME_UNKNOWN;
1732 }
1733 }
1734
1735 done:
1736
1737 result = NT_STATUS_NONE_MAPPED;
1738
1739 if (have_mapped)
1740 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1741
1742 return result;
1743 }
1744
1745 #if 0
1746 static NTSTATUS pdb_default_lookup_names(struct pdb_methods *methods,
1747 const struct dom_sid *domain_sid,
1748 int num_names,
1749 const char **names,
1750 uint32_t *rids,
1751 enum lsa_SidType *attrs)
1752 {
1753 int i;
1754 NTSTATUS result;
1755 bool have_mapped = False;
1756 bool have_unmapped = False;
1757
1758 if (sid_check_is_builtin(domain_sid)) {
1759
1760 for (i=0; i<num_names; i++) {
1761 uint32_t rid;
1762
1763 if (lookup_builtin_name(names[i], &rid)) {
1764 attrs[i] = SID_NAME_ALIAS;
1765 rids[i] = rid;
1766 DEBUG(5,("lookup_rids: %s:%d\n",
1767 names[i], attrs[i]));
1768 have_mapped = True;
1769 } else {
1770 have_unmapped = True;
1771 attrs[i] = SID_NAME_UNKNOWN;
1772 }
1773 }
1774 goto done;
1775 }
1776
1777 /* Should not happen, but better check once too many */
1778 if (!sid_check_is_domain(domain_sid)) {
1779 return NT_STATUS_INVALID_HANDLE;
1780 }
1781
1782 for (i = 0; i < num_names; i++) {
1783 if (lookup_global_sam_name(names[i], 0, &rids[i], &attrs[i])) {
1784 DEBUG(5,("lookup_names: %s-> %d:%d\n", names[i],
1785 rids[i], attrs[i]));
1786 have_mapped = True;
1787 } else {
1788 have_unmapped = True;
1789 attrs[i] = SID_NAME_UNKNOWN;
1790 }
1791 }
1792
1793 done:
1794
1795 result = NT_STATUS_NONE_MAPPED;
1796
1797 if (have_mapped)
1798 result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
1799
1800 return result;
1801 }
1802 #endif
1803
1804 static int pdb_search_destructor(struct pdb_search *search)
1805 {
1806 if ((!search->search_ended) && (search->search_end != NULL)) {
1807 search->search_end(search);
1808 }
1809 return 0;
1810 }
1811
1812 struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx,
1813 enum pdb_search_type type)
1814 {
1815 struct pdb_search *result;
1816
1817 result = talloc(mem_ctx, struct pdb_search);
1818 if (result == NULL) {
1819 DEBUG(0, ("talloc failed\n"));
1820 return NULL;
1821 }
1822
1823 result->type = type;
1824 result->cache = NULL;
1825 result->num_entries = 0;
1826 result->cache_size = 0;
1827 result->search_ended = False;
1828 result->search_end = NULL;
1829
1830 /* Segfault appropriately if not initialized */
1831 result->next_entry = NULL;
1832 result->search_end = NULL;
1833
1834 talloc_set_destructor(result, pdb_search_destructor);
1835
1836 return result;
1837 }
1838
1839 static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid,
1840 uint16_t acct_flags,
1841 const char *account_name,
1842 const char *fullname,
1843 const char *description,
1844 struct samr_displayentry *entry)
1845 {
1846 entry->rid = rid;
1847 entry->acct_flags = acct_flags;
1848
1849 if (account_name != NULL)
1850 entry->account_name = talloc_strdup(mem_ctx, account_name);
1851 else
1852 entry->account_name = "";
1853
1854 if (fullname != NULL)
1855 entry->fullname = talloc_strdup(mem_ctx, fullname);
1856 else
1857 entry->fullname = "";
1858
1859 if (description != NULL)
1860 entry->description = talloc_strdup(mem_ctx, description);
1861 else
1862 entry->description = "";
1863 }
1864
1865 struct group_search {
1866 GROUP_MAP *groups;
1867 size_t num_groups, current_group;
1868 };
1869
1870 static bool next_entry_groups(struct pdb_search *s,
1871 struct samr_displayentry *entry)
1872 {
1873 struct group_search *state = (struct group_search *)s->private_data;
1874 uint32_t rid;
1875 GROUP_MAP *map = &state->groups[state->current_group];
1876
1877 if (state->current_group == state->num_groups)
1878 return False;
1879
1880 sid_peek_rid(&map->sid, &rid);
1881
1882 fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry);
1883
1884 state->current_group += 1;
1885 return True;
1886 }
1887
1888 static void search_end_groups(struct pdb_search *search)
1889 {
1890 struct group_search *state =
1891 (struct group_search *)search->private_data;
1892 SAFE_FREE(state->groups);
1893 }
1894
1895 static bool pdb_search_grouptype(struct pdb_search *search,
1896 const struct dom_sid *sid, enum lsa_SidType type)
1897 {
1898 struct group_search *state;
1899
1900 state = talloc(search, struct group_search);
1901 if (state == NULL) {
1902 DEBUG(0, ("talloc failed\n"));
1903 return False;
1904 }
1905
1906 if (!pdb_enum_group_mapping(sid, type, &state->groups, &state->num_groups,
1907 True)) {
1908 DEBUG(0, ("Could not enum groups\n"));
1909 return False;
1910 }
1911
1912 state->current_group = 0;
1913 search->private_data = state;
1914 search->next_entry = next_entry_groups;
1915 search->search_end = search_end_groups;
1916 return True;
1917 }
1918
1919 static bool pdb_default_search_groups(struct pdb_methods *methods,
1920 struct pdb_search *search)
1921 {
1922 return pdb_search_grouptype(search, get_global_sam_sid(), SID_NAME_DOM_GRP);
1923 }
1924
1925 static bool pdb_default_search_aliases(struct pdb_methods *methods,
1926 struct pdb_search *search,
1927 const struct dom_sid *sid)
1928 {
1929
1930 return pdb_search_grouptype(search, sid, SID_NAME_ALIAS);
1931 }
1932
1933 static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
1934 uint32_t idx)
1935 {
1936 if (idx < search->num_entries)
1937 return &search->cache[idx];
1938
1939 if (search->search_ended)
1940 return NULL;
1941
1942 while (idx >= search->num_entries) {
1943 struct samr_displayentry entry;
1944
1945 if (!search->next_entry(search, &entry)) {
1946 search->search_end(search);
1947 search->search_ended = True;
1948 break;
1949 }
1950
1951 ADD_TO_LARGE_ARRAY(search, struct samr_displayentry,
1952 entry, &search->cache, &search->num_entries,
1953 &search->cache_size);
1954 }
1955
1956 return (search->num_entries > idx) ? &search->cache[idx] : NULL;
1957 }
1958
1959 struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags)
1960 {
1961 struct pdb_methods *pdb = pdb_get_methods();
1962 struct pdb_search *result;
1963
1964 result = pdb_search_init(mem_ctx, PDB_USER_SEARCH);
1965 if (result == NULL) {
1966 return NULL;
1967 }
1968
1969 if (!pdb->search_users(pdb, result, acct_flags)) {
1970 TALLOC_FREE(result);
1971 return NULL;
1972 }
1973 return result;
1974 }
1975
1976 struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx)
1977 {
1978 struct pdb_methods *pdb = pdb_get_methods();
1979 struct pdb_search *result;
1980
1981 result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH);
1982 if (result == NULL) {
1983 return NULL;
1984 }
1985
1986 if (!pdb->search_groups(pdb, result)) {
1987 TALLOC_FREE(result);
1988 return NULL;
1989 }
1990 return result;
1991 }
1992
1993 struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
1994 {
1995 struct pdb_methods *pdb = pdb_get_methods();
1996 struct pdb_search *result;
1997
1998 if (pdb == NULL) return NULL;
1999
2000 result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH);
2001 if (result == NULL) {
2002 return NULL;
2003 }
2004
2005 if (!pdb->search_aliases(pdb, result, sid)) {
2006 TALLOC_FREE(result);
2007 return NULL;
2008 }
2009 return result;
2010 }
2011
2012 uint32_t pdb_search_entries(struct pdb_search *search,
2013 uint32_t start_idx, uint32_t max_entries,
2014 struct samr_displayentry **result)
2015 {
2016 struct samr_displayentry *end_entry;
2017 uint32_t end_idx = start_idx+max_entries-1;
2018
2019 /* The first entry needs to be searched after the last. Otherwise the
2020 * first entry might have moved due to a realloc during the search for
2021 * the last entry. */
2022
2023 end_entry = pdb_search_getentry(search, end_idx);
2024 *result = pdb_search_getentry(search, start_idx);
2025
2026 if (end_entry != NULL)
2027 return max_entries;
2028
2029 if (start_idx >= search->num_entries)
2030 return 0;
2031
2032 return search->num_entries - start_idx;
2033 }
2034
2035 /*******************************************************************
2036 trustdom methods
2037 *******************************************************************/
2038
2039 bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid,
2040 time_t *pass_last_set_time)
2041 {
2042 struct pdb_methods *pdb = pdb_get_methods();
2043 return pdb->get_trusteddom_pw(pdb, domain, pwd, sid,
2044 pass_last_set_time);
2045 }
2046
2047 bool pdb_set_trusteddom_pw(const char* domain, const char* pwd,
2048 const struct dom_sid *sid)
2049 {
2050 struct pdb_methods *pdb = pdb_get_methods();
2051 return pdb->set_trusteddom_pw(pdb, domain, pwd, sid);
2052 }
2053
2054 bool pdb_del_trusteddom_pw(const char *domain)
2055 {
2056 struct pdb_methods *pdb = pdb_get_methods();
2057 return pdb->del_trusteddom_pw(pdb, domain);
2058 }
2059
2060 NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2061 struct trustdom_info ***domains)
2062 {
2063 struct pdb_methods *pdb = pdb_get_methods();
2064 return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains);
2065 }
2066
2067 /*******************************************************************
2068 the defaults for trustdom methods:
2069 these simply call the original passdb/secrets.c actions,
2070 to be replaced by pdb_ldap.
2071 *******************************************************************/
2072
2073 static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods,
2074 const char *domain,
2075 char** pwd,
2076 struct dom_sid *sid,
2077 time_t *pass_last_set_time)
2078 {
2079 return secrets_fetch_trusted_domain_password(domain, pwd,
2080 sid, pass_last_set_time);
2081
2082 }
2083
2084 static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods,
2085 const char* domain,
2086 const char* pwd,
2087 const struct dom_sid *sid)
2088 {
2089 return secrets_store_trusted_domain_password(domain, pwd, sid);
2090 }
2091
2092 static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods,
2093 const char *domain)
2094 {
2095 return trusted_domain_password_delete(domain);
2096 }
2097
2098 static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods,
2099 TALLOC_CTX *mem_ctx,
2100 uint32_t *num_domains,
2101 struct trustdom_info ***domains)
2102 {
2103 return secrets_trusted_domains(mem_ctx, num_domains, domains);
2104 }
2105
2106 /*******************************************************************
2107 trusted_domain methods
2108 *******************************************************************/
2109
2110 NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain,
2111 struct pdb_trusted_domain **td)
2112 {
2113 struct pdb_methods *pdb = pdb_get_methods();
2114 return pdb->get_trusted_domain(pdb, mem_ctx, domain, td);
2115 }
2116
2117 NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid,
2118 struct pdb_trusted_domain **td)
2119 {
2120 struct pdb_methods *pdb = pdb_get_methods();
2121 return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td);
2122 }
2123
2124 NTSTATUS pdb_set_trusted_domain(const char* domain,
2125 const struct pdb_trusted_domain *td)
2126 {
2127 struct pdb_methods *pdb = pdb_get_methods();
2128 return pdb->set_trusted_domain(pdb, domain, td);
2129 }
2130
2131 NTSTATUS pdb_del_trusted_domain(const char *domain)
2132 {
2133 struct pdb_methods *pdb = pdb_get_methods();
2134 return pdb->del_trusted_domain(pdb, domain);
2135 }
2136
2137 NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains,
2138 struct pdb_trusted_domain ***domains)
2139 {
2140 struct pdb_methods *pdb = pdb_get_methods();
2141 return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains);
2142 }
2143
2144 static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods,
2145 TALLOC_CTX *mem_ctx,
2146 const char *domain,
2147 struct pdb_trusted_domain **td)
2148 {
2149 struct trustAuthInOutBlob taiob;
2150 struct AuthenticationInformation aia;
2151 struct pdb_trusted_domain *tdom;
2152 enum ndr_err_code ndr_err;
2153 time_t last_set_time;
2154 char *pwd;
2155 bool ok;
2156
2157 tdom = talloc(mem_ctx, struct pdb_trusted_domain);
2158 if (!tdom) {
2159 return NT_STATUS_NO_MEMORY;
2160 }
2161
2162 tdom->domain_name = talloc_strdup(tdom, domain);
2163 tdom->netbios_name = talloc_strdup(tdom, domain);
2164 if (!tdom->domain_name || !tdom->netbios_name) {
2165 talloc_free(tdom);
2166 return NT_STATUS_NO_MEMORY;
2167 }
2168
2169 tdom->trust_auth_incoming = data_blob_null;
2170
2171 ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier,
2172 &last_set_time);
2173 if (!ok) {
2174 talloc_free(tdom);
2175 return NT_STATUS_UNSUCCESSFUL;
2176 }
2177
2178 ZERO_STRUCT(taiob);
2179 ZERO_STRUCT(aia);
2180 taiob.count = 1;
2181 taiob.current.count = 1;
2182 taiob.current.array = &aia;
2183 unix_to_nt_time(&aia.LastUpdateTime, last_set_time);
2184 aia.AuthType = TRUST_AUTH_TYPE_CLEAR;
2185 aia.AuthInfo.clear.password = (uint8_t *) pwd;
2186 aia.AuthInfo.clear.size = strlen(pwd);
2187 taiob.previous.count = 0;
2188 taiob.previous.array = NULL;
2189
2190 ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing,
2191 tdom, &taiob,
2192 (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
2193 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2194 talloc_free(tdom);
2195 return NT_STATUS_UNSUCCESSFUL;
2196 }
2197
2198 tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND;
2199 tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL;
2200 tdom->trust_attributes = 0;
2201 tdom->trust_forest_trust_info = data_blob_null;
2202
2203 *td = tdom;
2204 return NT_STATUS_OK;
2205 }
2206
2207 static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods,
2208 TALLOC_CTX *mem_ctx,
2209 struct dom_sid *sid,
2210 struct pdb_trusted_domain **td)
2211 {
2212 return NT_STATUS_NOT_IMPLEMENTED;
2213 }
2214
2215 #define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0)
2216
2217 static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods,
2218 const char* domain,
2219 const struct pdb_trusted_domain *td)
2220 {
2221 struct trustAuthInOutBlob taiob;
2222 struct AuthenticationInformation *aia;
2223 enum ndr_err_code ndr_err;
2224 char *pwd;
2225 bool ok;
2226
2227 if (td->trust_attributes != 0 ||
2228 td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL ||
2229 td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND ||
2230 !IS_NULL_DATA_BLOB(td->trust_auth_incoming) ||
2231 !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) {
2232 return NT_STATUS_NOT_IMPLEMENTED;
2233 }
2234
2235 ZERO_STRUCT(taiob);
2236 ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(),
2237 &taiob,
2238 (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
2239 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
2240 return NT_STATUS_UNSUCCESSFUL;
2241 }
2242
2243 aia = (struct AuthenticationInformation *) taiob.current.array;
2244
2245 if (taiob.count != 1 || taiob.current.count != 1 ||
2246 taiob.previous.count != 0 ||
2247 aia->AuthType != TRUST_AUTH_TYPE_CLEAR) {
2248 return NT_STATUS_NOT_IMPLEMENTED;
2249 }
2250
2251 pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password,
2252 aia->AuthInfo.clear.size);
2253 if (!pwd) {
2254 return NT_STATUS_NO_MEMORY;
2255 }
2256
2257 ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier);
2258 if (!ok) {
2259 return NT_STATUS_UNSUCCESSFUL;
2260 }
2261
2262 return NT_STATUS_OK;
2263 }
2264
2265 static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods,
2266 const char *domain)
2267 {
2268 return NT_STATUS_NOT_IMPLEMENTED;
2269 }
2270
2271 static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods,
2272 TALLOC_CTX *mem_ctx,
2273 uint32_t *num_domains,
2274 struct pdb_trusted_domain ***domains)
2275 {
2276 return NT_STATUS_NOT_IMPLEMENTED;
2277 }
2278
2279 static struct pdb_domain_info *pdb_default_get_domain_info(
2280 struct pdb_methods *m, TALLOC_CTX *mem_ctx)
2281 {
2282 return NULL;
2283 }
2284
2285 /*******************************************************************
2286 Create a pdb_methods structure and initialize it with the default
2287 operations. In this way a passdb module can simply implement
2288 the functionality it cares about. However, normally this is done
2289 in groups of related functions.
2290 *******************************************************************/
2291
2292 NTSTATUS make_pdb_method( struct pdb_methods **methods )
2293 {
2294 /* allocate memory for the structure as its own talloc CTX */
2295
2296 *methods = talloc_zero(NULL, struct pdb_methods);
2297 if (*methods == NULL) {
2298 return NT_STATUS_NO_MEMORY;
2299 }
2300
2301 (*methods)->get_domain_info = pdb_default_get_domain_info;
2302 (*methods)->getsampwnam = pdb_default_getsampwnam;
2303 (*methods)->getsampwsid = pdb_default_getsampwsid;
2304 (*methods)->create_user = pdb_default_create_user;
2305 (*methods)->delete_user = pdb_default_delete_user;
2306 (*methods)->add_sam_account = pdb_default_add_sam_account;
2307 (*methods)->update_sam_account = pdb_default_update_sam_account;
2308 (*methods)->delete_sam_account = pdb_default_delete_sam_account;
2309 (*methods)->rename_sam_account = pdb_default_rename_sam_account;
2310 (*methods)->update_login_attempts = pdb_default_update_login_attempts;
2311
2312 (*methods)->getgrsid = pdb_default_getgrsid;
2313 (*methods)->getgrgid = pdb_default_getgrgid;
2314 (*methods)->getgrnam = pdb_default_getgrnam;
2315 (*methods)->create_dom_group = pdb_default_create_dom_group;
2316 (*methods)->delete_dom_group = pdb_default_delete_dom_group;
2317 (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
2318 (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
2319 (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
2320 (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
2321 (*methods)->enum_group_members = pdb_default_enum_group_members;
2322 (*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
2323 (*methods)->set_unix_primary_group = pdb_default_set_unix_primary_group;
2324 (*methods)->add_groupmem = pdb_default_add_groupmem;
2325 (*methods)->del_groupmem = pdb_default_del_groupmem;
2326 (*methods)->create_alias = pdb_default_create_alias;
2327 (*methods)->delete_alias = pdb_default_delete_alias;
2328 (*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
2329 (*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
2330 (*methods)->add_aliasmem = pdb_default_add_aliasmem;
2331 (*methods)->del_aliasmem = pdb_default_del_aliasmem;
2332 (*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
2333 (*methods)->enum_alias_memberships = pdb_default_alias_memberships;
2334 (*methods)->lookup_rids = pdb_default_lookup_rids;
2335 (*methods)->get_account_policy = pdb_default_get_account_policy;
2336 (*methods)->set_account_policy = pdb_default_set_account_policy;
2337 (*methods)->get_seq_num = pdb_default_get_seq_num;
2338 (*methods)->uid_to_sid = pdb_default_uid_to_sid;
2339 (*methods)->gid_to_sid = pdb_default_gid_to_sid;
2340 (*methods)->sid_to_id = pdb_default_sid_to_id;
2341
2342 (*methods)->search_groups = pdb_default_search_groups;
2343 (*methods)->search_aliases = pdb_default_search_aliases;
2344
2345 (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw;
2346 (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw;
2347 (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw;
2348 (*methods)->enum_trusteddoms = pdb_default_enum_trusteddoms;
2349
2350 (*methods)->get_trusted_domain = pdb_default_get_trusted_domain;
2351 (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid;
2352 (*methods)->set_trusted_domain = pdb_default_set_trusted_domain;
2353 (*methods)->del_trusted_domain = pdb_default_del_trusted_domain;
2354 (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains;
2355
2356 return NT_STATUS_OK;
2357 }
stuff from bjacke