r17439: Fix logic error in checking TALLOC return. Spotted by Volker.
[ira/wip.git] / source / rpc_server / srv_samr_nt.c
1 /*
2  *  Unix SMB/CIFS implementation.
3  *  RPC Pipe client / server routines
4  *  Copyright (C) Andrew Tridgell                   1992-1997,
5  *  Copyright (C) Luke Kenneth Casson Leighton      1996-1997,
6  *  Copyright (C) Paul Ashton                       1997,
7  *  Copyright (C) Marc Jacobsen                     1999,
8  *  Copyright (C) Jeremy Allison                    2001-2005,
9  *  Copyright (C) Jean Fran├žois Micouleau           1998-2001,
10  *  Copyright (C) Jim McDonough <jmcd@us.ibm.com>   2002,
11  *  Copyright (C) Gerald (Jerry) Carter             2003-2004,
12  *  Copyright (C) Simo Sorce                        2003.
13  *  Copyright (C) Volker Lendecke                   2005.
14  *
15  *  This program is free software; you can redistribute it and/or modify
16  *  it under the terms of the GNU General Public License as published by
17  *  the Free Software Foundation; either version 2 of the License, or
18  *  (at your option) any later version.
19  *
20  *  This program is distributed in the hope that it will be useful,
21  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
23  *  GNU General Public License for more details.
24  *
25  *  You should have received a copy of the GNU General Public License
26  *  along with this program; if not, write to the Free Software
27  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28  */
29
30 /*
31  * This is the implementation of the SAMR code.
32  */
33
34 #include "includes.h"
35
36 #undef DBGC_CLASS
37 #define DBGC_CLASS DBGC_RPC_SRV
38
39 #define SAMR_USR_RIGHTS_WRITE_PW \
40                 ( READ_CONTROL_ACCESS           | \
41                   SA_RIGHT_USER_CHANGE_PASSWORD | \
42                   SA_RIGHT_USER_SET_LOC_COM )
43
44 #define DISP_INFO_CACHE_TIMEOUT 10
45
46 typedef struct disp_info {
47         struct disp_info *next, *prev;
48         TALLOC_CTX *mem_ctx;
49         DOM_SID sid; /* identify which domain this is. */
50         BOOL builtin_domain; /* Quick flag to check if this is the builtin domain. */
51         struct pdb_search *users; /* querydispinfo 1 and 4 */
52         struct pdb_search *machines; /* querydispinfo 2 */
53         struct pdb_search *groups; /* querydispinfo 3 and 5, enumgroups */
54         struct pdb_search *aliases; /* enumaliases */
55
56         uint16 enum_acb_mask;
57         struct pdb_search *enum_users; /* enumusers with a mask */
58
59
60         smb_event_id_t di_cache_timeout_event; /* cache idle timeout handler. */
61 } DISP_INFO;
62
63 /* We keep a static list of these by SID as modern clients close down
64    all resources between each request in a complete enumeration. */
65
66 static DISP_INFO *disp_info_list;
67
68 struct samr_info {
69         /* for use by the \PIPE\samr policy */
70         DOM_SID sid;
71         BOOL builtin_domain; /* Quick flag to check if this is the builtin domain. */
72         uint32 status; /* some sort of flag.  best to record it.  comes from opnum 0x39 */
73         uint32 acc_granted;
74         DISP_INFO *disp_info;
75         TALLOC_CTX *mem_ctx;
76 };
77
78 static struct generic_mapping sam_generic_mapping = {
79         GENERIC_RIGHTS_SAM_READ,
80         GENERIC_RIGHTS_SAM_WRITE,
81         GENERIC_RIGHTS_SAM_EXECUTE,
82         GENERIC_RIGHTS_SAM_ALL_ACCESS};
83 static struct generic_mapping dom_generic_mapping = {
84         GENERIC_RIGHTS_DOMAIN_READ,
85         GENERIC_RIGHTS_DOMAIN_WRITE,
86         GENERIC_RIGHTS_DOMAIN_EXECUTE,
87         GENERIC_RIGHTS_DOMAIN_ALL_ACCESS};
88 static struct generic_mapping usr_generic_mapping = {
89         GENERIC_RIGHTS_USER_READ,
90         GENERIC_RIGHTS_USER_WRITE,
91         GENERIC_RIGHTS_USER_EXECUTE,
92         GENERIC_RIGHTS_USER_ALL_ACCESS};
93 static struct generic_mapping grp_generic_mapping = {
94         GENERIC_RIGHTS_GROUP_READ,
95         GENERIC_RIGHTS_GROUP_WRITE,
96         GENERIC_RIGHTS_GROUP_EXECUTE,
97         GENERIC_RIGHTS_GROUP_ALL_ACCESS};
98 static struct generic_mapping ali_generic_mapping = {
99         GENERIC_RIGHTS_ALIAS_READ,
100         GENERIC_RIGHTS_ALIAS_WRITE,
101         GENERIC_RIGHTS_ALIAS_EXECUTE,
102         GENERIC_RIGHTS_ALIAS_ALL_ACCESS};
103
104 /*******************************************************************
105 *******************************************************************/
106
107 static NTSTATUS make_samr_object_sd( TALLOC_CTX *ctx, SEC_DESC **psd, size_t *sd_size,
108                                      struct generic_mapping *map,
109                                      DOM_SID *sid, uint32 sid_access )
110 {
111         DOM_SID domadmin_sid;
112         SEC_ACE ace[5];         /* at most 5 entries */
113         SEC_ACCESS mask;
114         size_t i = 0;
115
116         SEC_ACL *psa = NULL;
117
118         /* basic access for Everyone */
119
120         init_sec_access(&mask, map->generic_execute | map->generic_read );
121         init_sec_ace(&ace[i++], &global_sid_World, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
122
123         /* add Full Access 'BUILTIN\Administrators' and 'BUILTIN\Account Operators */
124
125         init_sec_access(&mask, map->generic_all);
126         
127         init_sec_ace(&ace[i++], &global_sid_Builtin_Administrators, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
128         init_sec_ace(&ace[i++], &global_sid_Builtin_Account_Operators, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
129
130         /* Add Full Access for Domain Admins if we are a DC */
131         
132         if ( IS_DC ) {
133                 sid_copy( &domadmin_sid, get_global_sam_sid() );
134                 sid_append_rid( &domadmin_sid, DOMAIN_GROUP_RID_ADMINS );
135                 init_sec_ace(&ace[i++], &domadmin_sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
136         }
137
138         /* if we have a sid, give it some special access */
139
140         if ( sid ) {
141                 init_sec_access( &mask, sid_access );
142                 init_sec_ace(&ace[i++], sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0);
143         }
144
145         /* create the security descriptor */
146
147         if ((psa = make_sec_acl(ctx, NT4_ACL_REVISION, i, ace)) == NULL)
148                 return NT_STATUS_NO_MEMORY;
149
150         if ((*psd = make_sec_desc(ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE, NULL, NULL, NULL, psa, sd_size)) == NULL)
151                 return NT_STATUS_NO_MEMORY;
152
153         return NT_STATUS_OK;
154 }
155
156 /*******************************************************************
157  Checks if access to an object should be granted, and returns that
158  level of access for further checks.
159 ********************************************************************/
160
161 static NTSTATUS access_check_samr_object( SEC_DESC *psd, NT_USER_TOKEN *token, 
162                                           SE_PRIV *rights, uint32 rights_mask,
163                                           uint32 des_access, uint32 *acc_granted, 
164                                           const char *debug )
165 {
166         NTSTATUS status = NT_STATUS_ACCESS_DENIED;
167         uint32 saved_mask = 0;
168
169         /* check privileges; certain SAM access bits should be overridden 
170            by privileges (mostly having to do with creating/modifying/deleting 
171            users and groups) */
172         
173         if ( rights && user_has_any_privilege( token, rights ) ) {
174         
175                 saved_mask = (des_access & rights_mask);
176                 des_access &= ~saved_mask;
177                 
178                 DEBUG(4,("access_check_samr_object: user rights access mask [0x%x]\n",
179                         rights_mask));
180         }
181                 
182         
183         /* check the security descriptor first */
184         
185         if ( se_access_check(psd, token, des_access, acc_granted, &status) )
186                 goto done;
187         
188         /* give root a free pass */
189         
190         if ( geteuid() == sec_initial_uid() ) {
191         
192                 DEBUG(4,("%s: ACCESS should be DENIED  (requested: %#010x)\n", debug, des_access));
193                 DEBUGADD(4,("but overritten by euid == sec_initial_uid()\n"));
194                 
195                 *acc_granted = des_access;
196                 
197                 status = NT_STATUS_OK;
198                 goto done;
199         }
200         
201         
202 done:
203         /* add in any bits saved during the privilege check (only 
204            matters is status is ok) */
205         
206         *acc_granted |= rights_mask;
207
208         DEBUG(4,("%s: access %s (requested: 0x%08x, granted: 0x%08x)\n", 
209                 debug, NT_STATUS_IS_OK(status) ? "GRANTED" : "DENIED", 
210                 des_access, *acc_granted));
211         
212         return status;
213 }
214
215 /*******************************************************************
216  Checks if access to a function can be granted
217 ********************************************************************/
218
219 static NTSTATUS access_check_samr_function(uint32 acc_granted, uint32 acc_required, const char *debug)
220 {
221         DEBUG(5,("%s: access check ((granted: %#010x;  required: %#010x)\n",  
222                 debug, acc_granted, acc_required));
223
224         /* check the security descriptor first */
225         
226         if ( (acc_granted&acc_required) == acc_required )
227                 return NT_STATUS_OK;
228                 
229         /* give root a free pass */
230
231         if (geteuid() == sec_initial_uid()) {
232         
233                 DEBUG(4,("%s: ACCESS should be DENIED (granted: %#010x;  required: %#010x)\n",
234                         debug, acc_granted, acc_required));
235                 DEBUGADD(4,("but overwritten by euid == 0\n"));
236                 
237                 return NT_STATUS_OK;
238         }
239         
240         DEBUG(2,("%s: ACCESS DENIED (granted: %#010x;  required: %#010x)\n", 
241                 debug, acc_granted, acc_required));
242                 
243         return NT_STATUS_ACCESS_DENIED;
244 }
245
246 /*******************************************************************
247  Fetch or create a dispinfo struct.
248 ********************************************************************/
249
250 static DISP_INFO *get_samr_dispinfo_by_sid(DOM_SID *psid, const char *sid_str)
251 {
252         TALLOC_CTX *mem_ctx;
253         DISP_INFO *dpi;
254
255         /* There are two cases to consider here:
256            1) The SID is a domain SID and we look for an equality match, or
257            2) This is an account SID and so we return the DISP_INFO* for our 
258               domain */
259
260         if ( psid && sid_check_is_in_our_domain( psid ) ) {
261                 DEBUG(10,("get_samr_dispinfo_by_sid: Replacing %s with our domain SID\n",
262                         sid_str));
263                 psid = get_global_sam_sid();
264         }
265
266         for (dpi = disp_info_list; dpi; dpi = dpi->next) {
267                 if (sid_equal(psid, &dpi->sid)) {
268                         return dpi;
269                 }
270         }
271
272         /* This struct is never free'd - I'm using talloc so we
273            can get a list out of smbd using smbcontrol. There will
274            be one of these per SID we're authorative for. JRA. */
275
276         mem_ctx = talloc_init("DISP_INFO for domain sid %s", sid_str);
277
278         if ((dpi = TALLOC_ZERO_P(mem_ctx, DISP_INFO)) == NULL)
279                 return NULL;
280
281         dpi->mem_ctx = mem_ctx;
282
283         if (psid) {
284                 sid_copy( &dpi->sid, psid);
285                 dpi->builtin_domain = sid_check_is_builtin(psid);
286         } else {
287                 dpi->builtin_domain = False;
288         }
289
290         DLIST_ADD(disp_info_list, dpi);
291
292         return dpi;
293 }
294
295 /*******************************************************************
296  Create a samr_info struct.
297 ********************************************************************/
298
299 static struct samr_info *get_samr_info_by_sid(DOM_SID *psid)
300 {
301         struct samr_info *info;
302         fstring sid_str;
303         TALLOC_CTX *mem_ctx;
304         
305         if (psid) {
306                 sid_to_string(sid_str, psid);
307         } else {
308                 fstrcpy(sid_str,"(NULL)");
309         }
310
311         mem_ctx = talloc_init("samr_info for domain sid %s", sid_str);
312
313         if ((info = TALLOC_ZERO_P(mem_ctx, struct samr_info)) == NULL)
314                 return NULL;
315
316         DEBUG(10,("get_samr_info_by_sid: created new info for sid %s\n", sid_str));
317         if (psid) {
318                 sid_copy( &info->sid, psid);
319                 info->builtin_domain = sid_check_is_builtin(psid);
320         } else {
321                 DEBUG(10,("get_samr_info_by_sid: created new info for NULL sid.\n"));
322                 info->builtin_domain = False;
323         }
324         info->mem_ctx = mem_ctx;
325
326         info->disp_info = get_samr_dispinfo_by_sid(psid, sid_str);
327
328         if (!info->disp_info) {
329                 talloc_destroy(mem_ctx);
330                 return NULL;
331         }
332
333         return info;
334 }
335
336 /*******************************************************************
337  Function to free the per SID data.
338  ********************************************************************/
339
340 static void free_samr_cache(DISP_INFO *disp_info, const char *sid_str)
341 {
342         DEBUG(10,("free_samr_cache: deleting cache for SID %s\n", sid_str));
343
344         /* We need to become root here because the paged search might have to
345          * tell the LDAP server we're not interested in the rest anymore. */
346
347         become_root();
348
349         if (disp_info->users) {
350                 DEBUG(10,("free_samr_cache: deleting users cache\n"));
351                 pdb_search_destroy(disp_info->users);
352                 disp_info->users = NULL;
353         }
354         if (disp_info->machines) {
355                 DEBUG(10,("free_samr_cache: deleting machines cache\n"));
356                 pdb_search_destroy(disp_info->machines);
357                 disp_info->machines = NULL;
358         }
359         if (disp_info->groups) {
360                 DEBUG(10,("free_samr_cache: deleting groups cache\n"));
361                 pdb_search_destroy(disp_info->groups);
362                 disp_info->groups = NULL;
363         }
364         if (disp_info->aliases) {
365                 DEBUG(10,("free_samr_cache: deleting aliases cache\n"));
366                 pdb_search_destroy(disp_info->aliases);
367                 disp_info->aliases = NULL;
368         }
369         if (disp_info->enum_users) {
370                 DEBUG(10,("free_samr_cache: deleting enum_users cache\n"));
371                 pdb_search_destroy(disp_info->enum_users);
372                 disp_info->enum_users = NULL;
373         }
374         disp_info->enum_acb_mask = 0;
375
376         unbecome_root();
377 }
378
379 /*******************************************************************
380  Function to free the per handle data.
381  ********************************************************************/
382
383 static void free_samr_info(void *ptr)
384 {
385         struct samr_info *info=(struct samr_info *) ptr;
386
387         /* Only free the dispinfo cache if no one bothered to set up
388            a timeout. */
389
390         if (info->disp_info && info->disp_info->di_cache_timeout_event == (smb_event_id_t)0) {
391                 fstring sid_str;
392                 sid_to_string(sid_str, &info->disp_info->sid);
393                 free_samr_cache(info->disp_info, sid_str);
394         }
395
396         talloc_destroy(info->mem_ctx);
397 }
398
399 /*******************************************************************
400  Idle event handler. Throw away the disp info cache.
401  ********************************************************************/
402
403 static void disp_info_cache_idle_timeout_handler(void **private_data,
404                                         time_t *ev_interval,
405                                         time_t ev_now)
406 {
407         fstring sid_str;
408         DISP_INFO *disp_info = (DISP_INFO *)(*private_data);
409
410         sid_to_string(sid_str, &disp_info->sid);
411
412         free_samr_cache(disp_info, sid_str);
413
414         /* Remove the event. */
415         smb_unregister_idle_event(disp_info->di_cache_timeout_event);
416         disp_info->di_cache_timeout_event = (smb_event_id_t)0;
417
418         DEBUG(10,("disp_info_cache_idle_timeout_handler: caching timed out for SID %s at %u\n",
419                 sid_str, (unsigned int)ev_now));
420 }
421
422 /*******************************************************************
423  Setup cache removal idle event handler.
424  ********************************************************************/
425
426 static void set_disp_info_cache_timeout(DISP_INFO *disp_info, time_t secs_fromnow)
427 {
428         fstring sid_str;
429
430         sid_to_string(sid_str, &disp_info->sid);
431
432         /* Remove any pending timeout and update. */
433
434         if (disp_info->di_cache_timeout_event) {
435                 smb_unregister_idle_event(disp_info->di_cache_timeout_event);
436                 disp_info->di_cache_timeout_event = (smb_event_id_t)0;
437         }
438
439         DEBUG(10,("set_disp_info_cache_timeout: caching enumeration for SID %s for %u seconds\n",
440                 sid_str, (unsigned int)secs_fromnow ));
441
442         disp_info->di_cache_timeout_event =
443                 smb_register_idle_event(disp_info_cache_idle_timeout_handler,
444                                         disp_info,
445                                         secs_fromnow);
446 }
447
448 /*******************************************************************
449  Force flush any cache. We do this on any samr_set_xxx call.
450  We must also remove the timeout handler.
451  ********************************************************************/
452
453 static void force_flush_samr_cache(DISP_INFO *disp_info)
454 {
455         if (disp_info) {
456                 fstring sid_str;
457
458                 sid_to_string(sid_str, &disp_info->sid);
459                 if (disp_info->di_cache_timeout_event) {
460                         smb_unregister_idle_event(disp_info->di_cache_timeout_event);
461                         disp_info->di_cache_timeout_event = (smb_event_id_t)0;
462                         DEBUG(10,("force_flush_samr_cache: clearing idle event for SID %s\n",
463                                 sid_str));
464                 }
465                 free_samr_cache(disp_info, sid_str);
466         }
467 }
468
469 /*******************************************************************
470  Ensure password info is never given out. Paranioa... JRA.
471  ********************************************************************/
472
473 static void samr_clear_sam_passwd(struct samu *sam_pass)
474 {
475         
476         if (!sam_pass)
477                 return;
478
479         /* These now zero out the old password */
480
481         pdb_set_lanman_passwd(sam_pass, NULL, PDB_DEFAULT);
482         pdb_set_nt_passwd(sam_pass, NULL, PDB_DEFAULT);
483 }
484
485 static uint32 count_sam_users(struct disp_info *info, uint32 acct_flags)
486 {
487         struct samr_displayentry *entry;
488
489         if (info->builtin_domain) {
490                 /* No users in builtin. */
491                 return 0;
492         }
493
494         if (info->users == NULL) {
495                 info->users = pdb_search_users(acct_flags);
496                 if (info->users == NULL) {
497                         return 0;
498                 }
499         }
500         /* Fetch the last possible entry, thus trigger an enumeration */
501         pdb_search_entries(info->users, 0xffffffff, 1, &entry);
502
503         /* Ensure we cache this enumeration. */
504         set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT);
505
506         return info->users->num_entries;
507 }
508
509 static uint32 count_sam_groups(struct disp_info *info)
510 {
511         struct samr_displayentry *entry;
512
513         if (info->builtin_domain) {
514                 /* No groups in builtin. */
515                 return 0;
516         }
517
518         if (info->groups == NULL) {
519                 info->groups = pdb_search_groups();
520                 if (info->groups == NULL) {
521                         return 0;
522                 }
523         }
524         /* Fetch the last possible entry, thus trigger an enumeration */
525         pdb_search_entries(info->groups, 0xffffffff, 1, &entry);
526
527         /* Ensure we cache this enumeration. */
528         set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT);
529
530         return info->groups->num_entries;
531 }
532
533 static uint32 count_sam_aliases(struct disp_info *info)
534 {
535         struct samr_displayentry *entry;
536
537         if (info->aliases == NULL) {
538                 info->aliases = pdb_search_aliases(&info->sid);
539                 if (info->aliases == NULL) {
540                         return 0;
541                 }
542         }
543         /* Fetch the last possible entry, thus trigger an enumeration */
544         pdb_search_entries(info->aliases, 0xffffffff, 1, &entry);
545
546         /* Ensure we cache this enumeration. */
547         set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT);
548
549         return info->aliases->num_entries;
550 }
551
552 /*******************************************************************
553  _samr_close_hnd
554  ********************************************************************/
555
556 NTSTATUS _samr_close_hnd(pipes_struct *p, SAMR_Q_CLOSE_HND *q_u, SAMR_R_CLOSE_HND *r_u)
557 {
558         r_u->status = NT_STATUS_OK;
559
560         /* close the policy handle */
561         if (!close_policy_hnd(p, &q_u->pol))
562                 return NT_STATUS_OBJECT_NAME_INVALID;
563
564         DEBUG(5,("samr_reply_close_hnd: %d\n", __LINE__));
565
566         return r_u->status;
567 }
568
569 /*******************************************************************
570  samr_reply_open_domain
571  ********************************************************************/
572
573 NTSTATUS _samr_open_domain(pipes_struct *p, SAMR_Q_OPEN_DOMAIN *q_u, SAMR_R_OPEN_DOMAIN *r_u)
574 {
575         struct    samr_info *info;
576         SEC_DESC *psd = NULL;
577         uint32    acc_granted;
578         uint32    des_access = q_u->flags;
579         NTSTATUS  status;
580         size_t    sd_size;
581         SE_PRIV se_rights;
582
583         r_u->status = NT_STATUS_OK;
584
585         /* find the connection policy handle. */
586         
587         if ( !find_policy_by_hnd(p, &q_u->pol, (void**)(void *)&info) )
588                 return NT_STATUS_INVALID_HANDLE;
589
590         status = access_check_samr_function( info->acc_granted, 
591                 SA_RIGHT_SAM_OPEN_DOMAIN, "_samr_open_domain" );
592                 
593         if ( !NT_STATUS_IS_OK(status) )
594                 return status;
595
596         /*check if access can be granted as requested by client. */
597         
598         make_samr_object_sd( p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0 );
599         se_map_generic( &des_access, &dom_generic_mapping );
600         
601         se_priv_copy( &se_rights, &se_machine_account );
602         se_priv_add( &se_rights, &se_add_users );
603
604         status = access_check_samr_object( psd, p->pipe_user.nt_user_token, 
605                 &se_rights, GENERIC_RIGHTS_DOMAIN_WRITE, des_access, 
606                 &acc_granted, "_samr_open_domain" );
607                 
608         if ( !NT_STATUS_IS_OK(status) )
609                 return status;
610
611         if (!sid_check_is_domain(&q_u->dom_sid.sid) &&
612             !sid_check_is_builtin(&q_u->dom_sid.sid)) {
613                 return NT_STATUS_NO_SUCH_DOMAIN;
614         }
615
616         /* associate the domain SID with the (unique) handle. */
617         if ((info = get_samr_info_by_sid(&q_u->dom_sid.sid))==NULL)
618                 return NT_STATUS_NO_MEMORY;
619         info->acc_granted = acc_granted;
620
621         /* get a (unique) handle.  open a policy on it. */
622         if (!create_policy_hnd(p, &r_u->domain_pol, free_samr_info, (void *)info))
623                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
624
625         DEBUG(5,("samr_open_domain: %d\n", __LINE__));
626
627         return r_u->status;
628 }
629
630 /*******************************************************************
631  _samr_get_usrdom_pwinfo
632  ********************************************************************/
633
634 NTSTATUS _samr_get_usrdom_pwinfo(pipes_struct *p, SAMR_Q_GET_USRDOM_PWINFO *q_u, SAMR_R_GET_USRDOM_PWINFO *r_u)
635 {
636         struct samr_info *info = NULL;
637
638         r_u->status = NT_STATUS_OK;
639
640         /* find the policy handle.  open a policy on it. */
641         if (!find_policy_by_hnd(p, &q_u->user_pol, (void **)(void *)&info))
642                 return NT_STATUS_INVALID_HANDLE;
643
644         if (!sid_check_is_in_our_domain(&info->sid))
645                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
646
647         init_samr_r_get_usrdom_pwinfo(r_u, NT_STATUS_OK);
648
649         DEBUG(5,("_samr_get_usrdom_pwinfo: %d\n", __LINE__));
650
651         /* 
652          * NT sometimes return NT_STATUS_ACCESS_DENIED
653          * I don't know yet why.
654          */
655
656         return r_u->status;
657 }
658
659 /*******************************************************************
660  _samr_set_sec_obj
661  ********************************************************************/
662
663 NTSTATUS _samr_set_sec_obj(pipes_struct *p, SAMR_Q_SET_SEC_OBJ *q_u, SAMR_R_SET_SEC_OBJ *r_u)
664 {
665         DEBUG(0,("_samr_set_sec_obj: Not yet implemented!\n"));
666         return NT_STATUS_NOT_IMPLEMENTED;
667 }
668
669 /*******************************************************************
670 ********************************************************************/
671
672 static BOOL get_lsa_policy_samr_sid( pipes_struct *p, POLICY_HND *pol, 
673                                         DOM_SID *sid, uint32 *acc_granted,
674                                         DISP_INFO **ppdisp_info)
675 {
676         struct samr_info *info = NULL;
677
678         /* find the policy handle.  open a policy on it. */
679         if (!find_policy_by_hnd(p, pol, (void **)(void *)&info))
680                 return False;
681
682         if (!info)
683                 return False;
684
685         *sid = info->sid;
686         *acc_granted = info->acc_granted;
687         if (ppdisp_info) {
688                 *ppdisp_info = info->disp_info;
689         }
690
691         return True;
692 }
693
694 /*******************************************************************
695  _samr_query_sec_obj
696  ********************************************************************/
697
698 NTSTATUS _samr_query_sec_obj(pipes_struct *p, SAMR_Q_QUERY_SEC_OBJ *q_u, SAMR_R_QUERY_SEC_OBJ *r_u)
699 {
700         DOM_SID pol_sid;
701         fstring str_sid;
702         SEC_DESC * psd = NULL;
703         uint32 acc_granted;
704         size_t sd_size;
705
706         r_u->status = NT_STATUS_OK;
707
708         /* Get the SID. */
709         if (!get_lsa_policy_samr_sid(p, &q_u->user_pol, &pol_sid, &acc_granted, NULL))
710                 return NT_STATUS_INVALID_HANDLE;
711
712         DEBUG(10,("_samr_query_sec_obj: querying security on SID: %s\n", sid_to_string(str_sid, &pol_sid)));
713
714         /* Check what typ of SID is beeing queried (e.g Domain SID, User SID, Group SID) */
715
716         /* To query the security of the SAM it self an invalid SID with S-0-0 is passed to this function */
717         if (pol_sid.sid_rev_num == 0) {
718                 DEBUG(5,("_samr_query_sec_obj: querying security on SAM\n"));
719                 r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
720         } else if (sid_equal(&pol_sid,get_global_sam_sid())) { 
721                 /* check if it is our domain SID */
722                 DEBUG(5,("_samr_query_sec_obj: querying security on Domain with SID: %s\n", sid_to_string(str_sid, &pol_sid)));
723                 r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0);
724         } else if (sid_equal(&pol_sid,&global_sid_Builtin)) {
725                 /* check if it is the Builtin  Domain */
726                 /* TODO: Builtin probably needs a different SD with restricted write access*/
727                 DEBUG(5,("_samr_query_sec_obj: querying security on Builtin Domain with SID: %s\n", sid_to_string(str_sid, &pol_sid)));
728                 r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0);
729         } else if (sid_check_is_in_our_domain(&pol_sid) ||
730                  sid_check_is_in_builtin(&pol_sid)) {
731                 /* TODO: different SDs have to be generated for aliases groups and users.
732                          Currently all three get a default user SD  */
733                 DEBUG(10,("_samr_query_sec_obj: querying security on Object with SID: %s\n", sid_to_string(str_sid, &pol_sid)));
734                 r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &pol_sid, SAMR_USR_RIGHTS_WRITE_PW);
735         } else {
736                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
737         }
738
739         if ((r_u->buf = make_sec_desc_buf(p->mem_ctx, sd_size, psd)) == NULL)
740                 return NT_STATUS_NO_MEMORY;
741
742         if (NT_STATUS_IS_OK(r_u->status))
743                 r_u->ptr = 1;
744
745         return r_u->status;
746 }
747
748 /*******************************************************************
749 makes a SAM_ENTRY / UNISTR2* structure from a user list.
750 ********************************************************************/
751
752 static NTSTATUS make_user_sam_entry_list(TALLOC_CTX *ctx, SAM_ENTRY **sam_pp,
753                                          UNISTR2 **uni_name_pp,
754                                          uint32 num_entries, uint32 start_idx,
755                                          struct samr_displayentry *entries)
756 {
757         uint32 i;
758         SAM_ENTRY *sam;
759         UNISTR2 *uni_name;
760         
761         *sam_pp = NULL;
762         *uni_name_pp = NULL;
763
764         if (num_entries == 0)
765                 return NT_STATUS_OK;
766
767         sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_entries);
768
769         uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_entries);
770
771         if (sam == NULL || uni_name == NULL) {
772                 DEBUG(0, ("make_user_sam_entry_list: talloc_zero failed!\n"));
773                 return NT_STATUS_NO_MEMORY;
774         }
775
776         for (i = 0; i < num_entries; i++) {
777                 UNISTR2 uni_temp_name;
778                 /*
779                  * usrmgr expects a non-NULL terminated string with
780                  * trust relationships
781                  */
782                 if (entries[i].acct_flags & ACB_DOMTRUST) {
783                         init_unistr2(&uni_temp_name, entries[i].account_name,
784                                      UNI_FLAGS_NONE);
785                 } else {
786                         init_unistr2(&uni_temp_name, entries[i].account_name,
787                                      UNI_STR_TERMINATE);
788                 }
789
790                 init_sam_entry(&sam[i], &uni_temp_name, entries[i].rid);
791                 copy_unistr2(&uni_name[i], &uni_temp_name);
792         }
793
794         *sam_pp = sam;
795         *uni_name_pp = uni_name;
796         return NT_STATUS_OK;
797 }
798
799 /*******************************************************************
800  samr_reply_enum_dom_users
801  ********************************************************************/
802
803 NTSTATUS _samr_enum_dom_users(pipes_struct *p, SAMR_Q_ENUM_DOM_USERS *q_u, 
804                               SAMR_R_ENUM_DOM_USERS *r_u)
805 {
806         struct samr_info *info = NULL;
807         int num_account;
808         uint32 enum_context=q_u->start_idx;
809         enum remote_arch_types ra_type = get_remote_arch();
810         int max_sam_entries = (ra_type == RA_WIN95) ? MAX_SAM_ENTRIES_W95 : MAX_SAM_ENTRIES_W2K;
811         uint32 max_entries = max_sam_entries;
812         struct samr_displayentry *entries = NULL;
813         
814         r_u->status = NT_STATUS_OK;
815
816         /* find the policy handle.  open a policy on it. */
817         if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
818                 return NT_STATUS_INVALID_HANDLE;
819
820         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, 
821                                         SA_RIGHT_DOMAIN_ENUM_ACCOUNTS, 
822                                         "_samr_enum_dom_users"))) {
823                 return r_u->status;
824         }
825         
826         DEBUG(5,("_samr_enum_dom_users: %d\n", __LINE__));
827
828         if (info->builtin_domain) {
829                 /* No users in builtin. */
830                 init_samr_r_enum_dom_users(r_u, q_u->start_idx, 0);
831                 DEBUG(5,("_samr_enum_dom_users: No users in BUILTIN\n"));
832                 return r_u->status;
833         }
834
835         become_root();
836
837         /* AS ROOT !!!! */
838
839         if ((info->disp_info->enum_users != NULL) &&
840             (info->disp_info->enum_acb_mask != q_u->acb_mask)) {
841                 pdb_search_destroy(info->disp_info->enum_users);
842                 info->disp_info->enum_users = NULL;
843         }
844
845         if (info->disp_info->enum_users == NULL) {
846                 info->disp_info->enum_users = pdb_search_users(q_u->acb_mask);
847                 info->disp_info->enum_acb_mask = q_u->acb_mask;
848         }
849
850         if (info->disp_info->enum_users == NULL) {
851                 /* END AS ROOT !!!! */
852                 unbecome_root();
853                 return NT_STATUS_ACCESS_DENIED;
854         }
855
856         num_account = pdb_search_entries(info->disp_info->enum_users,
857                                          enum_context, max_entries,
858                                          &entries);
859
860         /* END AS ROOT !!!! */
861
862         unbecome_root();
863
864         if (num_account == 0) {
865                 DEBUG(5, ("_samr_enum_dom_users: enumeration handle over "
866                           "total entries\n"));
867                 return NT_STATUS_OK;
868         }
869
870         r_u->status = make_user_sam_entry_list(p->mem_ctx, &r_u->sam,
871                                                &r_u->uni_acct_name, 
872                                                num_account, enum_context,
873                                                entries);
874
875         if (!NT_STATUS_IS_OK(r_u->status))
876                 return r_u->status;
877
878         if (max_entries <= num_account) {
879                 r_u->status = STATUS_MORE_ENTRIES;
880         } else {
881                 r_u->status = NT_STATUS_OK;
882         }
883
884         /* Ensure we cache this enumeration. */
885         set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT);
886
887         DEBUG(5, ("_samr_enum_dom_users: %d\n", __LINE__));
888
889         init_samr_r_enum_dom_users(r_u, q_u->start_idx + num_account,
890                                    num_account);
891
892         DEBUG(5,("_samr_enum_dom_users: %d\n", __LINE__));
893
894         return r_u->status;
895 }
896
897 /*******************************************************************
898 makes a SAM_ENTRY / UNISTR2* structure from a group list.
899 ********************************************************************/
900
901 static void make_group_sam_entry_list(TALLOC_CTX *ctx, SAM_ENTRY **sam_pp,
902                                       UNISTR2 **uni_name_pp,
903                                       uint32 num_sam_entries,
904                                       struct samr_displayentry *entries)
905 {
906         uint32 i;
907         SAM_ENTRY *sam;
908         UNISTR2 *uni_name;
909
910         *sam_pp = NULL;
911         *uni_name_pp = NULL;
912
913         if (num_sam_entries == 0)
914                 return;
915
916         sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_sam_entries);
917         uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_sam_entries);
918
919         if (sam == NULL || uni_name == NULL) {
920                 DEBUG(0, ("NULL pointers in SAMR_R_QUERY_DISPINFO\n"));
921                 return;
922         }
923
924         for (i = 0; i < num_sam_entries; i++) {
925                 /*
926                  * JRA. I think this should include the null. TNG does not.
927                  */
928                 init_unistr2(&uni_name[i], entries[i].account_name,
929                              UNI_STR_TERMINATE);
930                 init_sam_entry(&sam[i], &uni_name[i], entries[i].rid);
931         }
932
933         *sam_pp = sam;
934         *uni_name_pp = uni_name;
935 }
936
937 /*******************************************************************
938  samr_reply_enum_dom_groups
939  ********************************************************************/
940
941 NTSTATUS _samr_enum_dom_groups(pipes_struct *p, SAMR_Q_ENUM_DOM_GROUPS *q_u, SAMR_R_ENUM_DOM_GROUPS *r_u)
942 {
943         struct samr_info *info = NULL;
944         struct samr_displayentry *groups;
945         uint32 num_groups;
946
947         r_u->status = NT_STATUS_OK;
948
949         /* find the policy handle.  open a policy on it. */
950         if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
951                 return NT_STATUS_INVALID_HANDLE;
952
953         r_u->status = access_check_samr_function(info->acc_granted,
954                                                  SA_RIGHT_DOMAIN_ENUM_ACCOUNTS,
955                                                  "_samr_enum_dom_groups");
956         if (!NT_STATUS_IS_OK(r_u->status))
957                 return r_u->status;
958
959         DEBUG(5,("samr_reply_enum_dom_groups: %d\n", __LINE__));
960
961         if (info->builtin_domain) {
962                 /* No groups in builtin. */
963                 init_samr_r_enum_dom_groups(r_u, q_u->start_idx, 0);
964                 DEBUG(5,("_samr_enum_dom_users: No groups in BUILTIN\n"));
965                 return r_u->status;
966         }
967
968         /* the domain group array is being allocated in the function below */
969
970         become_root();
971
972         if (info->disp_info->groups == NULL) {
973                 info->disp_info->groups = pdb_search_groups();
974
975                 if (info->disp_info->groups == NULL) {
976                         unbecome_root();
977                         return NT_STATUS_ACCESS_DENIED;
978                 }
979         }
980
981         num_groups = pdb_search_entries(info->disp_info->groups, q_u->start_idx,
982                                         MAX_SAM_ENTRIES, &groups);
983         unbecome_root();
984         
985         /* Ensure we cache this enumeration. */
986         set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT);
987
988         make_group_sam_entry_list(p->mem_ctx, &r_u->sam, &r_u->uni_grp_name,
989                                   num_groups, groups);
990
991         init_samr_r_enum_dom_groups(r_u, q_u->start_idx, num_groups);
992
993         DEBUG(5,("samr_enum_dom_groups: %d\n", __LINE__));
994
995         return r_u->status;
996 }
997
998 /*******************************************************************
999  samr_reply_enum_dom_aliases
1000  ********************************************************************/
1001
1002 NTSTATUS _samr_enum_dom_aliases(pipes_struct *p, SAMR_Q_ENUM_DOM_ALIASES *q_u, SAMR_R_ENUM_DOM_ALIASES *r_u)
1003 {
1004         struct samr_info *info;
1005         struct samr_displayentry *aliases;
1006         uint32 num_aliases = 0;
1007
1008         /* find the policy handle.  open a policy on it. */
1009         if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
1010                 return NT_STATUS_INVALID_HANDLE;
1011
1012         r_u->status = access_check_samr_function(info->acc_granted,
1013                                                  SA_RIGHT_DOMAIN_ENUM_ACCOUNTS,
1014                                                  "_samr_enum_dom_aliases");
1015         if (!NT_STATUS_IS_OK(r_u->status))
1016                 return r_u->status;
1017
1018         DEBUG(5,("samr_reply_enum_dom_aliases: sid %s\n",
1019                  sid_string_static(&info->sid)));
1020
1021         become_root();
1022
1023         if (info->disp_info->aliases == NULL) {
1024                 info->disp_info->aliases = pdb_search_aliases(&info->sid);
1025                 if (info->disp_info->aliases == NULL) {
1026                         unbecome_root();
1027                         return NT_STATUS_ACCESS_DENIED;
1028                 }
1029         }
1030
1031         num_aliases = pdb_search_entries(info->disp_info->aliases, q_u->start_idx,
1032                                          MAX_SAM_ENTRIES, &aliases);
1033         unbecome_root();
1034         
1035         /* Ensure we cache this enumeration. */
1036         set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT);
1037
1038         make_group_sam_entry_list(p->mem_ctx, &r_u->sam, &r_u->uni_grp_name,
1039                                   num_aliases, aliases);
1040
1041         init_samr_r_enum_dom_aliases(r_u, q_u->start_idx + num_aliases,
1042                                      num_aliases);
1043
1044         DEBUG(5,("samr_enum_dom_aliases: %d\n", __LINE__));
1045
1046         return r_u->status;
1047 }
1048
1049 /*******************************************************************
1050  samr_reply_query_dispinfo
1051  ********************************************************************/
1052
1053 NTSTATUS _samr_query_dispinfo(pipes_struct *p, SAMR_Q_QUERY_DISPINFO *q_u, 
1054                               SAMR_R_QUERY_DISPINFO *r_u)
1055 {
1056         struct samr_info *info = NULL;
1057         uint32 struct_size=0x20; /* W2K always reply that, client doesn't care */
1058         
1059         uint32 max_entries=q_u->max_entries;
1060         uint32 enum_context=q_u->start_idx;
1061         uint32 max_size=q_u->max_size;
1062
1063         SAM_DISPINFO_CTR *ctr;
1064         uint32 temp_size=0, total_data_size=0;
1065         NTSTATUS disp_ret = NT_STATUS_UNSUCCESSFUL;
1066         uint32 num_account = 0;
1067         enum remote_arch_types ra_type = get_remote_arch();
1068         int max_sam_entries = (ra_type == RA_WIN95) ? MAX_SAM_ENTRIES_W95 : MAX_SAM_ENTRIES_W2K;
1069         struct samr_displayentry *entries = NULL;
1070
1071         DEBUG(5, ("samr_reply_query_dispinfo: %d\n", __LINE__));
1072         r_u->status = NT_STATUS_UNSUCCESSFUL;
1073
1074         /* find the policy handle.  open a policy on it. */
1075         if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info))
1076                 return NT_STATUS_INVALID_HANDLE;
1077
1078         /*
1079          * calculate how many entries we will return.
1080          * based on 
1081          * - the number of entries the client asked
1082          * - our limit on that
1083          * - the starting point (enumeration context)
1084          * - the buffer size the client will accept
1085          */
1086
1087         /*
1088          * We are a lot more like W2K. Instead of reading the SAM
1089          * each time to find the records we need to send back,
1090          * we read it once and link that copy to the sam handle.
1091          * For large user list (over the MAX_SAM_ENTRIES)
1092          * it's a definitive win.
1093          * second point to notice: between enumerations
1094          * our sam is now the same as it's a snapshoot.
1095          * third point: got rid of the static SAM_USER_21 struct
1096          * no more intermediate.
1097          * con: it uses much more memory, as a full copy is stored
1098          * in memory.
1099          *
1100          * If you want to change it, think twice and think
1101          * of the second point , that's really important.
1102          *
1103          * JFM, 12/20/2001
1104          */
1105
1106         if ((q_u->switch_level < 1) || (q_u->switch_level > 5)) {
1107                 DEBUG(0,("_samr_query_dispinfo: Unknown info level (%u)\n",
1108                          (unsigned int)q_u->switch_level ));
1109                 return NT_STATUS_INVALID_INFO_CLASS;
1110         }
1111
1112         /* first limit the number of entries we will return */
1113         if(max_entries > max_sam_entries) {
1114                 DEBUG(5, ("samr_reply_query_dispinfo: client requested %d "
1115                           "entries, limiting to %d\n", max_entries,
1116                           max_sam_entries));
1117                 max_entries = max_sam_entries;
1118         }
1119
1120         /* calculate the size and limit on the number of entries we will
1121          * return */
1122
1123         temp_size=max_entries*struct_size;
1124         
1125         if (temp_size>max_size) {
1126                 max_entries=MIN((max_size/struct_size),max_entries);;
1127                 DEBUG(5, ("samr_reply_query_dispinfo: buffer size limits to "
1128                           "only %d entries\n", max_entries));
1129         }
1130
1131         if (!(ctr = TALLOC_ZERO_P(p->mem_ctx,SAM_DISPINFO_CTR)))
1132                 return NT_STATUS_NO_MEMORY;
1133
1134         ZERO_STRUCTP(ctr);
1135
1136         become_root();
1137
1138         /* THe following done as ROOT. Don't return without unbecome_root(). */
1139
1140         switch (q_u->switch_level) {
1141         case 0x1:
1142         case 0x4:
1143                 if (info->disp_info->users == NULL) {
1144                         info->disp_info->users = pdb_search_users(ACB_NORMAL);
1145                         if (info->disp_info->users == NULL) {
1146                                 unbecome_root();
1147                                 return NT_STATUS_ACCESS_DENIED;
1148                         }
1149                         DEBUG(10,("samr_reply_query_dispinfo: starting user enumeration at index %u\n",
1150                                 (unsigned  int)enum_context ));
1151                 } else {
1152                         DEBUG(10,("samr_reply_query_dispinfo: using cached user enumeration at index %u\n",
1153                                 (unsigned  int)enum_context ));
1154                 }
1155
1156                 num_account = pdb_search_entries(info->disp_info->users,
1157                                                  enum_context, max_entries,
1158                                                  &entries);
1159                 break;
1160         case 0x2:
1161                 if (info->disp_info->machines == NULL) {
1162                         info->disp_info->machines =
1163                                 pdb_search_users(ACB_WSTRUST|ACB_SVRTRUST);
1164                         if (info->disp_info->machines == NULL) {
1165                                 unbecome_root();
1166                                 return NT_STATUS_ACCESS_DENIED;
1167                         }
1168                         DEBUG(10,("samr_reply_query_dispinfo: starting machine enumeration at index %u\n",
1169                                 (unsigned  int)enum_context ));
1170                 } else {
1171                         DEBUG(10,("samr_reply_query_dispinfo: using cached machine enumeration at index %u\n",
1172                                 (unsigned  int)enum_context ));
1173                 }
1174
1175                 num_account = pdb_search_entries(info->disp_info->machines,
1176                                                  enum_context, max_entries,
1177                                                  &entries);
1178                 break;
1179         case 0x3:
1180         case 0x5:
1181                 if (info->disp_info->groups == NULL) {
1182                         info->disp_info->groups = pdb_search_groups();
1183                         if (info->disp_info->groups == NULL) {
1184                                 unbecome_root();
1185                                 return NT_STATUS_ACCESS_DENIED;
1186                         }
1187                         DEBUG(10,("samr_reply_query_dispinfo: starting group enumeration at index %u\n",
1188                                 (unsigned  int)enum_context ));
1189                 } else {
1190                         DEBUG(10,("samr_reply_query_dispinfo: using cached group enumeration at index %u\n",
1191                                 (unsigned  int)enum_context ));
1192                 }
1193
1194                 num_account = pdb_search_entries(info->disp_info->groups,
1195                                                  enum_context, max_entries,
1196                                                  &entries);
1197                 break;
1198         default:
1199                 unbecome_root();
1200                 smb_panic("info class changed");
1201                 break;
1202         }
1203         unbecome_root();
1204
1205         /* Now create reply structure */
1206         switch (q_u->switch_level) {
1207         case 0x1:
1208                 disp_ret = init_sam_dispinfo_1(p->mem_ctx, &ctr->sam.info1,
1209                                                num_account, enum_context,
1210                                                entries);
1211                 break;
1212         case 0x2:
1213                 disp_ret = init_sam_dispinfo_2(p->mem_ctx, &ctr->sam.info2,
1214                                                num_account, enum_context,
1215                                                entries);
1216                 break;
1217         case 0x3:
1218                 disp_ret = init_sam_dispinfo_3(p->mem_ctx, &ctr->sam.info3,
1219                                                num_account, enum_context,
1220                                                entries);
1221                 break;
1222         case 0x4:
1223                 disp_ret = init_sam_dispinfo_4(p->mem_ctx, &ctr->sam.info4,
1224                                                num_account, enum_context,
1225                                                entries);
1226                 break;
1227         case 0x5:
1228                 disp_ret = init_sam_dispinfo_5(p->mem_ctx, &ctr->sam.info5,
1229                                                num_account, enum_context,
1230                                                entries);
1231                 break;
1232         default:
1233                 smb_panic("info class changed");
1234                 break;
1235         }
1236
1237         if (!NT_STATUS_IS_OK(disp_ret))
1238                 return disp_ret;
1239
1240         /* calculate the total size */
1241         total_data_size=num_account*struct_size;
1242
1243         if (num_account) {
1244                 r_u->status = STATUS_MORE_ENTRIES;
1245         } else {
1246                 r_u->status = NT_STATUS_OK;
1247         }
1248
1249         /* Ensure we cache this enumeration. */
1250         set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT);
1251
1252         DEBUG(5, ("_samr_query_dispinfo: %d\n", __LINE__));
1253
1254         init_samr_r_query_dispinfo(r_u, num_account, total_data_size,
1255                                    temp_size, q_u->switch_level, ctr,
1256                                    r_u->status);
1257
1258         return r_u->status;
1259
1260 }
1261
1262 /*******************************************************************
1263  samr_reply_query_aliasinfo
1264  ********************************************************************/
1265
1266 NTSTATUS _samr_query_aliasinfo(pipes_struct *p, SAMR_Q_QUERY_ALIASINFO *q_u, SAMR_R_QUERY_ALIASINFO *r_u)
1267 {
1268         DOM_SID   sid;
1269         struct acct_info info;
1270         uint32    acc_granted;
1271         BOOL ret;
1272
1273         r_u->status = NT_STATUS_OK;
1274
1275         DEBUG(5,("_samr_query_aliasinfo: %d\n", __LINE__));
1276
1277         /* find the policy handle.  open a policy on it. */
1278         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &sid, &acc_granted, NULL))
1279                 return NT_STATUS_INVALID_HANDLE;
1280         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_LOOKUP_INFO, "_samr_query_aliasinfo"))) {
1281                 return r_u->status;
1282         }
1283
1284         become_root();
1285         ret = pdb_get_aliasinfo(&sid, &info);
1286         unbecome_root();
1287         
1288         if ( !ret )
1289                 return NT_STATUS_NO_SUCH_ALIAS;
1290
1291         if ( !(r_u->ctr = TALLOC_ZERO_P( p->mem_ctx, ALIAS_INFO_CTR )) ) 
1292                 return NT_STATUS_NO_MEMORY;
1293
1294
1295         switch (q_u->level ) {
1296         case 1:
1297                 r_u->ctr->level = 1;
1298                 init_samr_alias_info1(&r_u->ctr->alias.info1, info.acct_name, 1, info.acct_desc);
1299                 break;
1300         case 3:
1301                 r_u->ctr->level = 3;
1302                 init_samr_alias_info3(&r_u->ctr->alias.info3, info.acct_desc);
1303                 break;
1304         default:
1305                 return NT_STATUS_INVALID_INFO_CLASS;
1306         }
1307
1308         DEBUG(5,("_samr_query_aliasinfo: %d\n", __LINE__));
1309
1310         return r_u->status;
1311 }
1312
1313 #if 0
1314 /*******************************************************************
1315  samr_reply_lookup_ids
1316  ********************************************************************/
1317
1318  uint32 _samr_lookup_ids(pipes_struct *p, SAMR_Q_LOOKUP_IDS *q_u, SAMR_R_LOOKUP_IDS *r_u)
1319 {
1320     uint32 rid[MAX_SAM_ENTRIES];
1321     int num_rids = q_u->num_sids1;
1322
1323     r_u->status = NT_STATUS_OK;
1324
1325     DEBUG(5,("_samr_lookup_ids: %d\n", __LINE__));
1326
1327     if (num_rids > MAX_SAM_ENTRIES) {
1328         num_rids = MAX_SAM_ENTRIES;
1329         DEBUG(5,("_samr_lookup_ids: truncating entries to %d\n", num_rids));
1330     }
1331
1332 #if 0
1333     int i;
1334     SMB_ASSERT_ARRAY(q_u->uni_user_name, num_rids);
1335
1336     for (i = 0; i < num_rids && status == 0; i++)
1337     {
1338         struct sam_passwd *sam_pass;
1339         fstring user_name;
1340
1341
1342         fstrcpy(user_name, unistrn2(q_u->uni_user_name[i].buffer,
1343                                     q_u->uni_user_name[i].uni_str_len));
1344
1345         /* find the user account */
1346         become_root();
1347         sam_pass = get_smb21pwd_entry(user_name, 0);
1348         unbecome_root();
1349
1350         if (sam_pass == NULL)
1351         {
1352             status = 0xC0000000 | NT_STATUS_NO_SUCH_USER;
1353             rid[i] = 0;
1354         }
1355         else
1356         {
1357             rid[i] = sam_pass->user_rid;
1358         }
1359     }
1360 #endif
1361
1362     num_rids = 1;
1363     rid[0] = BUILTIN_ALIAS_RID_USERS;
1364
1365     init_samr_r_lookup_ids(&r_u, num_rids, rid, NT_STATUS_OK);
1366
1367     DEBUG(5,("_samr_lookup_ids: %d\n", __LINE__));
1368
1369     return r_u->status;
1370 }
1371 #endif
1372
1373 /*******************************************************************
1374  _samr_lookup_names
1375  ********************************************************************/
1376
1377 NTSTATUS _samr_lookup_names(pipes_struct *p, SAMR_Q_LOOKUP_NAMES *q_u, SAMR_R_LOOKUP_NAMES *r_u)
1378 {
1379         uint32 rid[MAX_SAM_ENTRIES];
1380         enum SID_NAME_USE type[MAX_SAM_ENTRIES];
1381         int i;
1382         int num_rids = q_u->num_names2;
1383         DOM_SID pol_sid;
1384         fstring sid_str;
1385         uint32  acc_granted;
1386
1387         r_u->status = NT_STATUS_OK;
1388
1389         DEBUG(5,("_samr_lookup_names: %d\n", __LINE__));
1390
1391         ZERO_ARRAY(rid);
1392         ZERO_ARRAY(type);
1393
1394         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &pol_sid, &acc_granted, NULL)) {
1395                 init_samr_r_lookup_names(p->mem_ctx, r_u, 0, NULL, NULL, NT_STATUS_OBJECT_TYPE_MISMATCH);
1396                 return r_u->status;
1397         }
1398         
1399         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, 0, "_samr_lookup_names"))) { /* Don't know the acc_bits yet */
1400                 return r_u->status;
1401         }
1402
1403         if (num_rids > MAX_SAM_ENTRIES) {
1404                 num_rids = MAX_SAM_ENTRIES;
1405                 DEBUG(5,("_samr_lookup_names: truncating entries to %d\n", num_rids));
1406         }
1407
1408         DEBUG(5,("_samr_lookup_names: looking name on SID %s\n", sid_to_string(sid_str, &pol_sid)));
1409         
1410         for (i = 0; i < num_rids; i++) {
1411                 fstring name;
1412                 int ret;
1413
1414                 r_u->status = NT_STATUS_NONE_MAPPED;
1415                 type[i] = SID_NAME_UNKNOWN;
1416
1417                 rid [i] = 0xffffffff;
1418
1419                 ret = rpcstr_pull(name, q_u->uni_name[i].buffer, sizeof(name), q_u->uni_name[i].uni_str_len*2, 0);
1420
1421                 if (ret <= 0) {
1422                         continue;
1423                 }
1424
1425                 if (sid_check_is_builtin(&pol_sid)) {
1426                         if (lookup_builtin_name(name, &rid[i])) {
1427                                 type[i] = SID_NAME_ALIAS;
1428                         }
1429                 } else {
1430                         lookup_global_sam_name(name, 0, &rid[i], &type[i]);
1431                 }
1432
1433                 if (type[i] != SID_NAME_UNKNOWN) {
1434                         r_u->status = NT_STATUS_OK;
1435                 }
1436         }
1437
1438         init_samr_r_lookup_names(p->mem_ctx, r_u, num_rids, rid, type, r_u->status);
1439
1440         DEBUG(5,("_samr_lookup_names: %d\n", __LINE__));
1441
1442         return r_u->status;
1443 }
1444
1445 /*******************************************************************
1446  _samr_chgpasswd_user
1447  ********************************************************************/
1448
1449 NTSTATUS _samr_chgpasswd_user(pipes_struct *p, SAMR_Q_CHGPASSWD_USER *q_u, SAMR_R_CHGPASSWD_USER *r_u)
1450 {
1451         fstring user_name;
1452         fstring wks;
1453
1454         DEBUG(5,("_samr_chgpasswd_user: %d\n", __LINE__));
1455
1456         r_u->status = NT_STATUS_OK;
1457
1458         rpcstr_pull(user_name, q_u->uni_user_name.buffer, sizeof(user_name), q_u->uni_user_name.uni_str_len*2, 0);
1459         rpcstr_pull(wks, q_u->uni_dest_host.buffer, sizeof(wks), q_u->uni_dest_host.uni_str_len*2,0);
1460
1461         DEBUG(5,("samr_chgpasswd_user: user: %s wks: %s\n", user_name, wks));
1462
1463         /*
1464          * Pass the user through the NT -> unix user mapping
1465          * function.
1466          */
1467  
1468         (void)map_username(user_name);
1469  
1470         /*
1471          * UNIX username case mangling not required, pass_oem_change 
1472          * is case insensitive.
1473          */
1474
1475         r_u->status = pass_oem_change(user_name, q_u->lm_newpass.pass, q_u->lm_oldhash.hash,
1476                                 q_u->nt_newpass.pass, q_u->nt_oldhash.hash, NULL);
1477
1478         init_samr_r_chgpasswd_user(r_u, r_u->status);
1479
1480         DEBUG(5,("_samr_chgpasswd_user: %d\n", __LINE__));
1481
1482         return r_u->status;
1483 }
1484
1485 /*******************************************************************
1486  _samr_chgpasswd_user3
1487  ********************************************************************/
1488
1489 NTSTATUS _samr_chgpasswd_user3(pipes_struct *p, SAMR_Q_CHGPASSWD_USER3 *q_u, SAMR_R_CHGPASSWD_USER3 *r_u)
1490 {
1491         fstring user_name;
1492         fstring wks;
1493         uint32 reject_reason;
1494         SAM_UNK_INFO_1 *info = NULL;
1495         SAMR_CHANGE_REJECT *reject = NULL;
1496
1497         DEBUG(5,("_samr_chgpasswd_user3: %d\n", __LINE__));
1498
1499         rpcstr_pull(user_name, q_u->uni_user_name.buffer, sizeof(user_name), q_u->uni_user_name.uni_str_len*2, 0);
1500         rpcstr_pull(wks, q_u->uni_dest_host.buffer, sizeof(wks), q_u->uni_dest_host.uni_str_len*2,0);
1501
1502         DEBUG(5,("_samr_chgpasswd_user3: user: %s wks: %s\n", user_name, wks));
1503
1504         /*
1505          * Pass the user through the NT -> unix user mapping
1506          * function.
1507          */
1508  
1509         (void)map_username(user_name);
1510  
1511         /*
1512          * UNIX username case mangling not required, pass_oem_change 
1513          * is case insensitive.
1514          */
1515
1516         r_u->status = pass_oem_change(user_name, q_u->lm_newpass.pass, q_u->lm_oldhash.hash,
1517                                       q_u->nt_newpass.pass, q_u->nt_oldhash.hash, &reject_reason);
1518
1519         if (NT_STATUS_EQUAL(r_u->status, NT_STATUS_PASSWORD_RESTRICTION) || 
1520             NT_STATUS_EQUAL(r_u->status, NT_STATUS_ACCOUNT_RESTRICTION)) {
1521
1522                 uint32 min_pass_len,pass_hist,password_properties;
1523                 time_t u_expire, u_min_age;
1524                 NTTIME nt_expire, nt_min_age;
1525                 uint32 account_policy_temp;
1526
1527                 if ((info = TALLOC_ZERO_P(p->mem_ctx, SAM_UNK_INFO_1)) == NULL) {
1528                         return NT_STATUS_NO_MEMORY;
1529                 }
1530
1531                 if ((reject = TALLOC_ZERO_P(p->mem_ctx, SAMR_CHANGE_REJECT)) == NULL) {
1532                         return NT_STATUS_NO_MEMORY;
1533                 }
1534
1535                 ZERO_STRUCTP(info);
1536                 ZERO_STRUCTP(reject);
1537
1538                 become_root();
1539
1540                 /* AS ROOT !!! */
1541
1542                 pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp);
1543                 min_pass_len = account_policy_temp;
1544
1545                 pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp);
1546                 pass_hist = account_policy_temp;
1547
1548                 pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp);
1549                 password_properties = account_policy_temp;
1550
1551                 pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp);
1552                 u_expire = account_policy_temp;
1553
1554                 pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp);
1555                 u_min_age = account_policy_temp;
1556
1557                 /* !AS ROOT */
1558                 
1559                 unbecome_root();
1560
1561                 unix_to_nt_time_abs(&nt_expire, u_expire);
1562                 unix_to_nt_time_abs(&nt_min_age, u_min_age);
1563
1564                 init_unk_info1(info, (uint16)min_pass_len, (uint16)pass_hist, 
1565                                password_properties, nt_expire, nt_min_age);
1566
1567                 reject->reject_reason = reject_reason;
1568         }
1569         
1570         init_samr_r_chgpasswd_user3(r_u, r_u->status, reject, info);
1571
1572         DEBUG(5,("_samr_chgpasswd_user3: %d\n", __LINE__));
1573
1574         return r_u->status;
1575 }
1576
1577 /*******************************************************************
1578 makes a SAMR_R_LOOKUP_RIDS structure.
1579 ********************************************************************/
1580
1581 static BOOL make_samr_lookup_rids(TALLOC_CTX *ctx, uint32 num_names,
1582                                   const char **names, UNIHDR **pp_hdr_name,
1583                                   UNISTR2 **pp_uni_name)
1584 {
1585         uint32 i;
1586         UNIHDR *hdr_name=NULL;
1587         UNISTR2 *uni_name=NULL;
1588
1589         *pp_uni_name = NULL;
1590         *pp_hdr_name = NULL;
1591
1592         if (num_names != 0) {
1593                 hdr_name = TALLOC_ZERO_ARRAY(ctx, UNIHDR, num_names);
1594                 if (hdr_name == NULL)
1595                         return False;
1596
1597                 uni_name = TALLOC_ZERO_ARRAY(ctx,UNISTR2, num_names);
1598                 if (uni_name == NULL)
1599                         return False;
1600         }
1601
1602         for (i = 0; i < num_names; i++) {
1603                 DEBUG(10, ("names[%d]:%s\n", i, names[i] && *names[i] ? names[i] : ""));
1604                 init_unistr2(&uni_name[i], names[i], UNI_FLAGS_NONE);
1605                 init_uni_hdr(&hdr_name[i], &uni_name[i]);
1606         }
1607
1608         *pp_uni_name = uni_name;
1609         *pp_hdr_name = hdr_name;
1610
1611         return True;
1612 }
1613
1614 /*******************************************************************
1615  _samr_lookup_rids
1616  ********************************************************************/
1617
1618 NTSTATUS _samr_lookup_rids(pipes_struct *p, SAMR_Q_LOOKUP_RIDS *q_u, SAMR_R_LOOKUP_RIDS *r_u)
1619 {
1620         const char **names;
1621         enum SID_NAME_USE *attrs = NULL;
1622         uint32 *wire_attrs = NULL;
1623         UNIHDR *hdr_name = NULL;
1624         UNISTR2 *uni_name = NULL;
1625         DOM_SID pol_sid;
1626         int num_rids = q_u->num_rids1;
1627         uint32 acc_granted;
1628         int i;
1629
1630         r_u->status = NT_STATUS_OK;
1631
1632         DEBUG(5,("_samr_lookup_rids: %d\n", __LINE__));
1633
1634         /* find the policy handle.  open a policy on it. */
1635         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &pol_sid, &acc_granted, NULL))
1636                 return NT_STATUS_INVALID_HANDLE;
1637
1638         if (num_rids > 1000) {
1639                 DEBUG(0, ("Got asked for %d rids (more than 1000) -- according "
1640                           "to samba4 idl this is not possible\n", num_rids));
1641                 return NT_STATUS_UNSUCCESSFUL;
1642         }
1643
1644         names = TALLOC_ZERO_ARRAY(p->mem_ctx, const char *, num_rids);
1645         attrs = TALLOC_ZERO_ARRAY(p->mem_ctx, enum SID_NAME_USE, num_rids);
1646         wire_attrs = TALLOC_ZERO_ARRAY(p->mem_ctx, uint32, num_rids);
1647
1648         if ((num_rids != 0) && ((names == NULL) || (attrs == NULL) || (wire_attrs==NULL)))
1649                 return NT_STATUS_NO_MEMORY;
1650
1651         become_root();  /* lookup_sid can require root privs */
1652         r_u->status = pdb_lookup_rids(&pol_sid, num_rids, q_u->rid,
1653                                       names, attrs);
1654         unbecome_root();
1655
1656         if ( NT_STATUS_EQUAL(r_u->status, NT_STATUS_NONE_MAPPED) && (num_rids == 0) ) {
1657                 r_u->status = NT_STATUS_OK;
1658         }
1659
1660         if(!make_samr_lookup_rids(p->mem_ctx, num_rids, names,
1661                                   &hdr_name, &uni_name))
1662                 return NT_STATUS_NO_MEMORY;
1663
1664         /* Convert from enum SID_NAME_USE to uint32 for wire format. */
1665         for (i = 0; i < num_rids; i++) {
1666                 wire_attrs[i] = (uint32)attrs[i];
1667         }
1668
1669         init_samr_r_lookup_rids(r_u, num_rids, hdr_name, uni_name, wire_attrs);
1670
1671         DEBUG(5,("_samr_lookup_rids: %d\n", __LINE__));
1672
1673         return r_u->status;
1674 }
1675
1676 /*******************************************************************
1677  _samr_open_user. Safe - gives out no passwd info.
1678  ********************************************************************/
1679
1680 NTSTATUS _samr_open_user(pipes_struct *p, SAMR_Q_OPEN_USER *q_u, SAMR_R_OPEN_USER *r_u)
1681 {
1682         struct samu *sampass=NULL;
1683         DOM_SID sid;
1684         POLICY_HND domain_pol = q_u->domain_pol;
1685         POLICY_HND *user_pol = &r_u->user_pol;
1686         struct samr_info *info = NULL;
1687         SEC_DESC *psd = NULL;
1688         uint32    acc_granted;
1689         uint32    des_access = q_u->access_mask;
1690         size_t    sd_size;
1691         BOOL ret;
1692         NTSTATUS nt_status;
1693         SE_PRIV se_rights;
1694
1695         r_u->status = NT_STATUS_OK;
1696
1697         /* find the domain policy handle and get domain SID / access bits in the domain policy. */
1698         
1699         if ( !get_lsa_policy_samr_sid(p, &domain_pol, &sid, &acc_granted, NULL) )
1700                 return NT_STATUS_INVALID_HANDLE;
1701         
1702         nt_status = access_check_samr_function( acc_granted, 
1703                 SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_user" );
1704                 
1705         if ( !NT_STATUS_IS_OK(nt_status) )
1706                 return nt_status;
1707
1708         if ( !(sampass = samu_new( p->mem_ctx )) ) {
1709                 return NT_STATUS_NO_MEMORY;
1710         }
1711
1712         /* append the user's RID to it */
1713         
1714         if (!sid_append_rid(&sid, q_u->user_rid))
1715                 return NT_STATUS_NO_SUCH_USER;
1716         
1717         /* check if access can be granted as requested by client. */
1718         
1719         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &sid, SAMR_USR_RIGHTS_WRITE_PW);
1720         se_map_generic(&des_access, &usr_generic_mapping);
1721         
1722         se_priv_copy( &se_rights, &se_machine_account );
1723         se_priv_add( &se_rights, &se_add_users );
1724         
1725         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
1726                 &se_rights, GENERIC_RIGHTS_USER_WRITE, des_access, 
1727                 &acc_granted, "_samr_open_user");
1728                 
1729         if ( !NT_STATUS_IS_OK(nt_status) )
1730                 return nt_status;
1731
1732         become_root();
1733         ret=pdb_getsampwsid(sampass, &sid);
1734         unbecome_root();
1735
1736         /* check that the SID exists in our domain. */
1737         if (ret == False) {
1738                 return NT_STATUS_NO_SUCH_USER;
1739         }
1740
1741         TALLOC_FREE(sampass);
1742
1743         /* associate the user's SID and access bits with the new handle. */
1744         if ((info = get_samr_info_by_sid(&sid)) == NULL)
1745                 return NT_STATUS_NO_MEMORY;
1746         info->acc_granted = acc_granted;
1747
1748         /* get a (unique) handle.  open a policy on it. */
1749         if (!create_policy_hnd(p, user_pol, free_samr_info, (void *)info))
1750                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1751
1752         return r_u->status;
1753 }
1754
1755 /*************************************************************************
1756  get_user_info_7. Safe. Only gives out account_name.
1757  *************************************************************************/
1758
1759 static NTSTATUS get_user_info_7(TALLOC_CTX *mem_ctx, SAM_USER_INFO_7 *id7, DOM_SID *user_sid)
1760 {
1761         struct samu *smbpass=NULL;
1762         BOOL ret;
1763
1764         if ( !(smbpass = samu_new( mem_ctx )) ) {
1765                 return NT_STATUS_NO_MEMORY;
1766         }
1767         
1768         become_root();
1769         ret = pdb_getsampwsid(smbpass, user_sid);
1770         unbecome_root();
1771
1772         if ( !ret ) {
1773                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1774                 return NT_STATUS_NO_SUCH_USER;
1775         }
1776
1777         DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
1778
1779         ZERO_STRUCTP(id7);
1780         init_sam_user_info7(id7, pdb_get_username(smbpass) );
1781
1782         TALLOC_FREE(smbpass);
1783
1784         return NT_STATUS_OK;
1785 }
1786
1787 /*************************************************************************
1788  get_user_info_9. Only gives out primary group SID.
1789  *************************************************************************/
1790 static NTSTATUS get_user_info_9(TALLOC_CTX *mem_ctx, SAM_USER_INFO_9 * id9, DOM_SID *user_sid)
1791 {
1792         struct samu *smbpass=NULL;
1793         BOOL ret;
1794
1795         if ( !(smbpass = samu_new( mem_ctx )) ) {
1796                 return NT_STATUS_NO_MEMORY;
1797         }
1798
1799         become_root();
1800         ret = pdb_getsampwsid(smbpass, user_sid);
1801         unbecome_root();
1802
1803         if (ret==False) {
1804                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1805                 return NT_STATUS_NO_SUCH_USER;
1806         }
1807
1808         DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
1809
1810         ZERO_STRUCTP(id9);
1811         init_sam_user_info9(id9, pdb_get_group_rid(smbpass) );
1812
1813         TALLOC_FREE(smbpass);
1814
1815         return NT_STATUS_OK;
1816 }
1817
1818 /*************************************************************************
1819  get_user_info_16. Safe. Only gives out acb bits.
1820  *************************************************************************/
1821
1822 static NTSTATUS get_user_info_16(TALLOC_CTX *mem_ctx, SAM_USER_INFO_16 *id16, DOM_SID *user_sid)
1823 {
1824         struct samu *smbpass=NULL;
1825         BOOL ret;
1826
1827         if ( !(smbpass = samu_new( mem_ctx )) ) {
1828                 return NT_STATUS_NO_MEMORY;
1829         }
1830
1831         become_root();
1832         ret = pdb_getsampwsid(smbpass, user_sid);
1833         unbecome_root();
1834
1835         if (ret==False) {
1836                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1837                 return NT_STATUS_NO_SUCH_USER;
1838         }
1839
1840         DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
1841
1842         ZERO_STRUCTP(id16);
1843         init_sam_user_info16(id16, pdb_get_acct_ctrl(smbpass) );
1844
1845         TALLOC_FREE(smbpass);
1846
1847         return NT_STATUS_OK;
1848 }
1849
1850 /*************************************************************************
1851  get_user_info_18. OK - this is the killer as it gives out password info.
1852  Ensure that this is only allowed on an encrypted connection with a root
1853  user. JRA. 
1854  *************************************************************************/
1855
1856 static NTSTATUS get_user_info_18(pipes_struct *p, TALLOC_CTX *mem_ctx, SAM_USER_INFO_18 * id18, DOM_SID *user_sid)
1857 {
1858         struct samu *smbpass=NULL;
1859         BOOL ret;
1860
1861         if (p->auth.auth_type != PIPE_AUTH_TYPE_NTLMSSP || p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) {
1862                 return NT_STATUS_ACCESS_DENIED;
1863         }
1864
1865         if (p->auth.auth_level != PIPE_AUTH_LEVEL_PRIVACY) {
1866                 return NT_STATUS_ACCESS_DENIED;
1867         }
1868
1869         /*
1870          * Do *NOT* do become_root()/unbecome_root() here ! JRA.
1871          */
1872
1873         if ( !(smbpass = samu_new( mem_ctx )) ) {
1874                 return NT_STATUS_NO_MEMORY;
1875         }
1876
1877         ret = pdb_getsampwsid(smbpass, user_sid);
1878
1879         if (ret == False) {
1880                 DEBUG(4, ("User %s not found\n", sid_string_static(user_sid)));
1881                 TALLOC_FREE(smbpass);
1882                 return (geteuid() == (uid_t)0) ? NT_STATUS_NO_SUCH_USER : NT_STATUS_ACCESS_DENIED;
1883         }
1884
1885         DEBUG(3,("User:[%s] 0x%x\n", pdb_get_username(smbpass), pdb_get_acct_ctrl(smbpass) ));
1886
1887         if ( pdb_get_acct_ctrl(smbpass) & ACB_DISABLED) {
1888                 TALLOC_FREE(smbpass);
1889                 return NT_STATUS_ACCOUNT_DISABLED;
1890         }
1891
1892         ZERO_STRUCTP(id18);
1893         init_sam_user_info18(id18, pdb_get_lanman_passwd(smbpass), pdb_get_nt_passwd(smbpass));
1894         
1895         TALLOC_FREE(smbpass);
1896
1897         return NT_STATUS_OK;
1898 }
1899
1900 /*************************************************************************
1901  get_user_info_20
1902  *************************************************************************/
1903
1904 static NTSTATUS get_user_info_20(TALLOC_CTX *mem_ctx, SAM_USER_INFO_20 *id20, DOM_SID *user_sid)
1905 {
1906         struct samu *sampass=NULL;
1907         BOOL ret;
1908
1909         if ( !(sampass = samu_new( mem_ctx )) ) {
1910                 return NT_STATUS_NO_MEMORY;
1911         }
1912
1913         become_root();
1914         ret = pdb_getsampwsid(sampass, user_sid);
1915         unbecome_root();
1916
1917         if (ret == False) {
1918                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1919                 return NT_STATUS_NO_SUCH_USER;
1920         }
1921
1922         samr_clear_sam_passwd(sampass);
1923
1924         DEBUG(3,("User:[%s]\n",  pdb_get_username(sampass) ));
1925
1926         ZERO_STRUCTP(id20);
1927         init_sam_user_info20A(id20, sampass);
1928         
1929         TALLOC_FREE(sampass);
1930
1931         return NT_STATUS_OK;
1932 }
1933
1934 /*************************************************************************
1935  get_user_info_21
1936  *************************************************************************/
1937
1938 static NTSTATUS get_user_info_21(TALLOC_CTX *mem_ctx, SAM_USER_INFO_21 *id21, 
1939                                  DOM_SID *user_sid, DOM_SID *domain_sid)
1940 {
1941         struct samu *sampass=NULL;
1942         BOOL ret;
1943         NTSTATUS nt_status;
1944
1945         if ( !(sampass = samu_new( mem_ctx )) ) {
1946                 return NT_STATUS_NO_MEMORY;
1947         }
1948
1949         become_root();
1950         ret = pdb_getsampwsid(sampass, user_sid);
1951         unbecome_root();
1952
1953         if (ret == False) {
1954                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1955                 return NT_STATUS_NO_SUCH_USER;
1956         }
1957
1958         samr_clear_sam_passwd(sampass);
1959
1960         DEBUG(3,("User:[%s]\n",  pdb_get_username(sampass) ));
1961
1962         ZERO_STRUCTP(id21);
1963         nt_status = init_sam_user_info21A(id21, sampass, domain_sid);
1964         
1965         TALLOC_FREE(sampass);
1966
1967         return nt_status;
1968 }
1969
1970 /*******************************************************************
1971  _samr_query_userinfo
1972  ********************************************************************/
1973
1974 NTSTATUS _samr_query_userinfo(pipes_struct *p, SAMR_Q_QUERY_USERINFO *q_u, SAMR_R_QUERY_USERINFO *r_u)
1975 {
1976         SAM_USERINFO_CTR *ctr;
1977         struct samr_info *info = NULL;
1978         DOM_SID domain_sid;
1979         uint32 rid;
1980         
1981         r_u->status=NT_STATUS_OK;
1982
1983         /* search for the handle */
1984         if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
1985                 return NT_STATUS_INVALID_HANDLE;
1986
1987         domain_sid = info->sid;
1988
1989         sid_split_rid(&domain_sid, &rid);
1990
1991         if (!sid_check_is_in_our_domain(&info->sid))
1992                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
1993
1994         DEBUG(5,("_samr_query_userinfo: sid:%s\n", sid_string_static(&info->sid)));
1995
1996         ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_USERINFO_CTR);
1997         if (!ctr)
1998                 return NT_STATUS_NO_MEMORY;
1999
2000         ZERO_STRUCTP(ctr);
2001
2002         /* ok!  user info levels (lots: see MSDEV help), off we go... */
2003         ctr->switch_value = q_u->switch_value;
2004
2005         DEBUG(5,("_samr_query_userinfo: user info level: %d\n", q_u->switch_value));
2006
2007         switch (q_u->switch_value) {
2008         case 7:
2009                 ctr->info.id7 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_7);
2010                 if (ctr->info.id7 == NULL)
2011                         return NT_STATUS_NO_MEMORY;
2012
2013                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_7(p->mem_ctx, ctr->info.id7, &info->sid)))
2014                         return r_u->status;
2015                 break;
2016         case 9:
2017                 ctr->info.id9 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_9);
2018                 if (ctr->info.id9 == NULL)
2019                         return NT_STATUS_NO_MEMORY;
2020
2021                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_9(p->mem_ctx, ctr->info.id9, &info->sid)))
2022                         return r_u->status;
2023                 break;
2024         case 16:
2025                 ctr->info.id16 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_16);
2026                 if (ctr->info.id16 == NULL)
2027                         return NT_STATUS_NO_MEMORY;
2028
2029                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_16(p->mem_ctx, ctr->info.id16, &info->sid)))
2030                         return r_u->status;
2031                 break;
2032
2033         case 18:
2034                 ctr->info.id18 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_18);
2035                 if (ctr->info.id18 == NULL)
2036                         return NT_STATUS_NO_MEMORY;
2037
2038                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_18(p, p->mem_ctx, ctr->info.id18, &info->sid)))
2039                         return r_u->status;
2040                 break;
2041                 
2042         case 20:
2043                 ctr->info.id20 = TALLOC_ZERO_P(p->mem_ctx,SAM_USER_INFO_20);
2044                 if (ctr->info.id20 == NULL)
2045                         return NT_STATUS_NO_MEMORY;
2046                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_20(p->mem_ctx, ctr->info.id20, &info->sid)))
2047                         return r_u->status;
2048                 break;
2049
2050         case 21:
2051                 ctr->info.id21 = TALLOC_ZERO_P(p->mem_ctx,SAM_USER_INFO_21);
2052                 if (ctr->info.id21 == NULL)
2053                         return NT_STATUS_NO_MEMORY;
2054                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_21(p->mem_ctx, ctr->info.id21, 
2055                                                                     &info->sid, &domain_sid)))
2056                         return r_u->status;
2057                 break;
2058
2059         default:
2060                 return NT_STATUS_INVALID_INFO_CLASS;
2061         }
2062
2063         init_samr_r_query_userinfo(r_u, ctr, r_u->status);
2064
2065         DEBUG(5,("_samr_query_userinfo: %d\n", __LINE__));
2066         
2067         return r_u->status;
2068 }
2069
2070 /*******************************************************************
2071  samr_reply_query_usergroups
2072  ********************************************************************/
2073
2074 NTSTATUS _samr_query_usergroups(pipes_struct *p, SAMR_Q_QUERY_USERGROUPS *q_u, SAMR_R_QUERY_USERGROUPS *r_u)
2075 {
2076         struct samu *sam_pass=NULL;
2077         DOM_SID  sid;
2078         DOM_SID *sids;
2079         DOM_GID dom_gid;
2080         DOM_GID *gids = NULL;
2081         uint32 primary_group_rid;
2082         size_t num_groups = 0;
2083         gid_t *unix_gids;
2084         size_t i, num_gids;
2085         uint32 acc_granted;
2086         BOOL ret;
2087         NTSTATUS result;
2088
2089         /*
2090          * from the SID in the request:
2091          * we should send back the list of DOMAIN GROUPS
2092          * the user is a member of
2093          *
2094          * and only the DOMAIN GROUPS
2095          * no ALIASES !!! neither aliases of the domain
2096          * nor aliases of the builtin SID
2097          *
2098          * JFM, 12/2/2001
2099          */
2100
2101         r_u->status = NT_STATUS_OK;
2102
2103         DEBUG(5,("_samr_query_usergroups: %d\n", __LINE__));
2104
2105         /* find the policy handle.  open a policy on it. */
2106         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &sid, &acc_granted, NULL))
2107                 return NT_STATUS_INVALID_HANDLE;
2108         
2109         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_USER_GET_GROUPS, "_samr_query_usergroups"))) {
2110                 return r_u->status;
2111         }
2112
2113         if (!sid_check_is_in_our_domain(&sid))
2114                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
2115
2116         if ( !(sam_pass = samu_new( p->mem_ctx )) ) {
2117                 return NT_STATUS_NO_MEMORY;
2118         }
2119
2120         become_root();
2121         ret = pdb_getsampwsid(sam_pass, &sid);
2122         unbecome_root();
2123
2124         if (!ret) {
2125                 DEBUG(10, ("pdb_getsampwsid failed for %s\n",
2126                            sid_string_static(&sid)));
2127                 return NT_STATUS_NO_SUCH_USER;
2128         }
2129
2130         sids = NULL;
2131
2132         become_root();
2133         result = pdb_enum_group_memberships(p->mem_ctx, sam_pass,
2134                                             &sids, &unix_gids, &num_groups);
2135         unbecome_root();
2136
2137         if (!NT_STATUS_IS_OK(result)) {
2138                 DEBUG(10, ("pdb_enum_group_memberships failed for %s\n",
2139                            sid_string_static(&sid)));
2140                 return result;
2141         }
2142
2143         gids = NULL;
2144         num_gids = 0;
2145
2146         dom_gid.attr = (SE_GROUP_MANDATORY|SE_GROUP_ENABLED_BY_DEFAULT|
2147                         SE_GROUP_ENABLED);
2148
2149         if (!sid_peek_check_rid(get_global_sam_sid(),
2150                                 pdb_get_group_sid(sam_pass),
2151                                 &primary_group_rid)) {
2152                 DEBUG(5, ("Group sid %s for user %s not in our domain\n",
2153                           sid_string_static(pdb_get_group_sid(sam_pass)),
2154                           pdb_get_username(sam_pass)));
2155                 TALLOC_FREE(sam_pass);
2156                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
2157         }
2158
2159         dom_gid.g_rid = primary_group_rid;
2160
2161         ADD_TO_ARRAY(p->mem_ctx, DOM_GID, dom_gid, &gids, &num_gids);
2162
2163         for (i=0; i<num_groups; i++) {
2164
2165                 if (!sid_peek_check_rid(get_global_sam_sid(),
2166                                         &(sids[i]), &dom_gid.g_rid)) {
2167                         DEBUG(10, ("Found sid %s not in our domain\n",
2168                                    sid_string_static(&sids[i])));
2169                         continue;
2170                 }
2171
2172                 if (dom_gid.g_rid == primary_group_rid) {
2173                         /* We added the primary group directly from the
2174                          * sam_account. The other SIDs are unique from
2175                          * enum_group_memberships */
2176                         continue;
2177                 }
2178
2179                 ADD_TO_ARRAY(p->mem_ctx, DOM_GID, dom_gid, &gids, &num_gids);
2180         }
2181         
2182         /* construct the response.  lkclXXXX: gids are not copied! */
2183         init_samr_r_query_usergroups(r_u, num_gids, gids, r_u->status);
2184         
2185         DEBUG(5,("_samr_query_usergroups: %d\n", __LINE__));
2186         
2187         return r_u->status;
2188 }
2189
2190 /*******************************************************************
2191  _samr_query_domain_info
2192  ********************************************************************/
2193
2194 NTSTATUS _samr_query_domain_info(pipes_struct *p, 
2195                                  SAMR_Q_QUERY_DOMAIN_INFO *q_u, 
2196                                  SAMR_R_QUERY_DOMAIN_INFO *r_u)
2197 {
2198         struct samr_info *info = NULL;
2199         SAM_UNK_CTR *ctr;
2200         uint32 min_pass_len,pass_hist,password_properties;
2201         time_t u_expire, u_min_age;
2202         NTTIME nt_expire, nt_min_age;
2203
2204         time_t u_lock_duration, u_reset_time;
2205         NTTIME nt_lock_duration, nt_reset_time;
2206         uint32 lockout;
2207         time_t u_logout;
2208         NTTIME nt_logout;
2209
2210         uint32 account_policy_temp;
2211
2212         time_t seq_num;
2213         uint32 server_role;
2214
2215         uint32 num_users=0, num_groups=0, num_aliases=0;
2216
2217         if ((ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_UNK_CTR)) == NULL) {
2218                 return NT_STATUS_NO_MEMORY;
2219         }
2220
2221         ZERO_STRUCTP(ctr);
2222
2223         r_u->status = NT_STATUS_OK;
2224         
2225         DEBUG(5,("_samr_query_domain_info: %d\n", __LINE__));
2226         
2227         /* find the policy handle.  open a policy on it. */
2228         if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info)) {
2229                 return NT_STATUS_INVALID_HANDLE;
2230         }
2231         
2232         switch (q_u->switch_value) {
2233                 case 0x01:
2234                         
2235                         become_root();
2236
2237                         /* AS ROOT !!! */
2238
2239                         pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp);
2240                         min_pass_len = account_policy_temp;
2241
2242                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp);
2243                         pass_hist = account_policy_temp;
2244
2245                         pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp);
2246                         password_properties = account_policy_temp;
2247
2248                         pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp);
2249                         u_expire = account_policy_temp;
2250
2251                         pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp);
2252                         u_min_age = account_policy_temp;
2253
2254                         /* !AS ROOT */
2255                         
2256                         unbecome_root();
2257
2258                         unix_to_nt_time_abs(&nt_expire, u_expire);
2259                         unix_to_nt_time_abs(&nt_min_age, u_min_age);
2260
2261                         init_unk_info1(&ctr->info.inf1, (uint16)min_pass_len, (uint16)pass_hist, 
2262                                        password_properties, nt_expire, nt_min_age);
2263                         break;
2264                 case 0x02:
2265
2266                         become_root();
2267
2268                         /* AS ROOT !!! */
2269
2270                         num_users = count_sam_users(info->disp_info, ACB_NORMAL);
2271                         num_groups = count_sam_groups(info->disp_info);
2272                         num_aliases = count_sam_aliases(info->disp_info);
2273
2274                         pdb_get_account_policy(AP_TIME_TO_LOGOUT, &account_policy_temp);
2275                         u_logout = account_policy_temp;
2276
2277                         unix_to_nt_time_abs(&nt_logout, u_logout);
2278
2279                         if (!pdb_get_seq_num(&seq_num))
2280                                 seq_num = time(NULL);
2281
2282                         /* !AS ROOT */
2283                         
2284                         unbecome_root();
2285
2286                         server_role = ROLE_DOMAIN_PDC;
2287                         if (lp_server_role() == ROLE_DOMAIN_BDC)
2288                                 server_role = ROLE_DOMAIN_BDC;
2289
2290                         init_unk_info2(&ctr->info.inf2, lp_serverstring(), lp_workgroup(), global_myname(), seq_num, 
2291                                        num_users, num_groups, num_aliases, nt_logout, server_role);
2292                         break;
2293                 case 0x03:
2294
2295                         become_root();
2296
2297                         /* AS ROOT !!! */
2298
2299                         {
2300                                 uint32 ul;
2301                                 pdb_get_account_policy(AP_TIME_TO_LOGOUT, &ul);
2302                                 u_logout = (time_t)ul;
2303                         }
2304
2305                         /* !AS ROOT */
2306                         
2307                         unbecome_root();
2308
2309                         unix_to_nt_time_abs(&nt_logout, u_logout);
2310                         
2311                         init_unk_info3(&ctr->info.inf3, nt_logout);
2312                         break;
2313                 case 0x04:
2314                         init_unk_info4(&ctr->info.inf4, lp_serverstring());
2315                         break;
2316                 case 0x05:
2317                         init_unk_info5(&ctr->info.inf5, get_global_sam_name());
2318                         break;
2319                 case 0x06:
2320                         /* NT returns its own name when a PDC. win2k and later
2321                          * only the name of the PDC if itself is a BDC (samba4
2322                          * idl) */
2323                         init_unk_info6(&ctr->info.inf6, global_myname());
2324                         break;
2325                 case 0x07:
2326                         server_role = ROLE_DOMAIN_PDC;
2327                         if (lp_server_role() == ROLE_DOMAIN_BDC)
2328                                 server_role = ROLE_DOMAIN_BDC;
2329
2330                         init_unk_info7(&ctr->info.inf7, server_role);
2331                         break;
2332                 case 0x08:
2333
2334                         become_root();
2335
2336                         /* AS ROOT !!! */
2337
2338                         if (!pdb_get_seq_num(&seq_num)) {
2339                                 seq_num = time(NULL);
2340                         }
2341
2342                         /* !AS ROOT */
2343                         
2344                         unbecome_root();
2345
2346                         init_unk_info8(&ctr->info.inf8, (uint32) seq_num);
2347                         break;
2348                 case 0x0c:
2349
2350                         become_root();
2351
2352                         /* AS ROOT !!! */
2353
2354                         pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &account_policy_temp);
2355                         u_lock_duration = account_policy_temp;
2356                         if (u_lock_duration != -1) {
2357                                 u_lock_duration *= 60;
2358                         }
2359
2360                         pdb_get_account_policy(AP_RESET_COUNT_TIME, &account_policy_temp);
2361                         u_reset_time = account_policy_temp * 60;
2362
2363                         pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_temp);
2364                         lockout = account_policy_temp;
2365
2366                         /* !AS ROOT */
2367                         
2368                         unbecome_root();
2369
2370                         unix_to_nt_time_abs(&nt_lock_duration, u_lock_duration);
2371                         unix_to_nt_time_abs(&nt_reset_time, u_reset_time);
2372         
2373                         init_unk_info12(&ctr->info.inf12, nt_lock_duration, nt_reset_time, (uint16)lockout);
2374                         break;
2375                 default:
2376                         return NT_STATUS_INVALID_INFO_CLASS;
2377                 }
2378         
2379
2380         init_samr_r_query_domain_info(r_u, q_u->switch_value, ctr, NT_STATUS_OK);
2381         
2382         DEBUG(5,("_samr_query_domain_info: %d\n", __LINE__));
2383         
2384         return r_u->status;
2385 }
2386
2387 /* W2k3 seems to use the same check for all 3 objects that can be created via
2388  * SAMR, if you try to create for example "Dialup" as an alias it says
2389  * "NT_STATUS_USER_EXISTS". This is racy, but we can't really lock the user
2390  * database. */
2391
2392 static NTSTATUS can_create(TALLOC_CTX *mem_ctx, const char *new_name)
2393 {
2394         enum SID_NAME_USE type;
2395         BOOL result;
2396
2397         DEBUG(10, ("Checking whether [%s] can be created\n", new_name));
2398
2399         become_root();
2400         /* Lookup in our local databases (only LOOKUP_NAME_ISOLATED set)
2401          * whether the name already exists */
2402         result = lookup_name(mem_ctx, new_name, LOOKUP_NAME_ISOLATED,
2403                              NULL, NULL, NULL, &type);
2404         unbecome_root();
2405
2406         if (!result) {
2407                 DEBUG(10, ("%s does not exist, can create it\n", new_name));
2408                 return NT_STATUS_OK;
2409         }
2410
2411         DEBUG(5, ("trying to create %s, exists as %s\n",
2412                   new_name, sid_type_lookup(type)));
2413
2414         if (type == SID_NAME_DOM_GRP) {
2415                 return NT_STATUS_GROUP_EXISTS;
2416         }
2417         if (type == SID_NAME_ALIAS) {
2418                 return NT_STATUS_ALIAS_EXISTS;
2419         }
2420
2421         /* Yes, the default is NT_STATUS_USER_EXISTS */
2422         return NT_STATUS_USER_EXISTS;
2423 }
2424
2425 /*******************************************************************
2426  _samr_create_user
2427  Create an account, can be either a normal user or a machine.
2428  This funcion will need to be updated for bdc/domain trusts.
2429  ********************************************************************/
2430
2431 NTSTATUS _samr_create_user(pipes_struct *p, SAMR_Q_CREATE_USER *q_u,
2432                            SAMR_R_CREATE_USER *r_u)
2433 {
2434         char *account;
2435         DOM_SID sid;
2436         POLICY_HND dom_pol = q_u->domain_pol;
2437         uint16 acb_info = q_u->acb_info;
2438         POLICY_HND *user_pol = &r_u->user_pol;
2439         struct samr_info *info = NULL;
2440         NTSTATUS nt_status;
2441         uint32 acc_granted;
2442         SEC_DESC *psd;
2443         size_t    sd_size;
2444         /* check this, when giving away 'add computer to domain' privs */
2445         uint32    des_access = GENERIC_RIGHTS_USER_ALL_ACCESS;
2446         BOOL can_add_account = False;
2447         SE_PRIV se_rights;
2448         DISP_INFO *disp_info = NULL;
2449
2450         /* Get the domain SID stored in the domain policy */
2451         if (!get_lsa_policy_samr_sid(p, &dom_pol, &sid, &acc_granted,
2452                                      &disp_info))
2453                 return NT_STATUS_INVALID_HANDLE;
2454
2455         nt_status = access_check_samr_function(acc_granted,
2456                                                SA_RIGHT_DOMAIN_CREATE_USER,
2457                                                "_samr_create_user");
2458         if (!NT_STATUS_IS_OK(nt_status)) {
2459                 return nt_status;
2460         }
2461
2462         if (!(acb_info == ACB_NORMAL || acb_info == ACB_DOMTRUST ||
2463               acb_info == ACB_WSTRUST || acb_info == ACB_SVRTRUST)) { 
2464                 /* Match Win2k, and return NT_STATUS_INVALID_PARAMETER if 
2465                    this parameter is not an account type */
2466                 return NT_STATUS_INVALID_PARAMETER;
2467         }
2468
2469         account = rpcstr_pull_unistr2_talloc(p->mem_ctx, &q_u->uni_name);
2470         if (account == NULL) {
2471                 return NT_STATUS_NO_MEMORY;
2472         }
2473
2474         nt_status = can_create(p->mem_ctx, account);
2475         if (!NT_STATUS_IS_OK(nt_status)) {
2476                 return nt_status;
2477         }
2478
2479         /* determine which user right we need to check based on the acb_info */
2480         
2481         if ( acb_info & ACB_WSTRUST )
2482         {
2483                 se_priv_copy( &se_rights, &se_machine_account );
2484                 can_add_account = user_has_privileges(
2485                         p->pipe_user.nt_user_token, &se_rights );
2486         } 
2487         /* usrmgr.exe (and net rpc trustdom grant) creates a normal user 
2488            account for domain trusts and changes the ACB flags later */
2489         else if ( acb_info & ACB_NORMAL &&
2490                   (account[strlen(account)-1] != '$') )
2491         {
2492                 se_priv_copy( &se_rights, &se_add_users );
2493                 can_add_account = user_has_privileges(
2494                         p->pipe_user.nt_user_token, &se_rights );
2495         } 
2496         else    /* implicit assumption of a BDC or domain trust account here
2497                  * (we already check the flags earlier) */
2498         {
2499                 if ( lp_enable_privileges() ) {
2500                         /* only Domain Admins can add a BDC or domain trust */
2501                         se_priv_copy( &se_rights, &se_priv_none );
2502                         can_add_account = nt_token_check_domain_rid(
2503                                 p->pipe_user.nt_user_token,
2504                                 DOMAIN_GROUP_RID_ADMINS );
2505                 }
2506         }
2507                 
2508         DEBUG(5, ("_samr_create_user: %s can add this account : %s\n",
2509                   uidtoname(p->pipe_user.ut.uid),
2510                   can_add_account ? "True":"False" ));
2511                 
2512         /********** BEGIN Admin BLOCK **********/
2513
2514         if ( can_add_account )
2515                 become_root();
2516
2517         nt_status = pdb_create_user(p->mem_ctx, account, acb_info,
2518                                     &r_u->user_rid);
2519
2520         if ( can_add_account )
2521                 unbecome_root();
2522
2523         /********** END Admin BLOCK **********/
2524         
2525         /* now check for failure */
2526         
2527         if ( !NT_STATUS_IS_OK(nt_status) )
2528                 return nt_status;
2529                         
2530         /* Get the user's SID */
2531
2532         sid_compose(&sid, get_global_sam_sid(), r_u->user_rid);
2533         
2534         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping,
2535                             &sid, SAMR_USR_RIGHTS_WRITE_PW);
2536         se_map_generic(&des_access, &usr_generic_mapping);
2537         
2538         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2539                 &se_rights, GENERIC_RIGHTS_USER_WRITE, des_access, 
2540                 &acc_granted, "_samr_create_user");
2541                 
2542         if ( !NT_STATUS_IS_OK(nt_status) ) {
2543                 return nt_status;
2544         }
2545
2546         /* associate the user's SID with the new handle. */
2547         if ((info = get_samr_info_by_sid(&sid)) == NULL) {
2548                 return NT_STATUS_NO_MEMORY;
2549         }
2550
2551         ZERO_STRUCTP(info);
2552         info->sid = sid;
2553         info->acc_granted = acc_granted;
2554
2555         /* get a (unique) handle.  open a policy on it. */
2556         if (!create_policy_hnd(p, user_pol, free_samr_info, (void *)info)) {
2557                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2558         }
2559
2560         /* After a "set" ensure we have no cached display info. */
2561         force_flush_samr_cache(info->disp_info);
2562
2563         r_u->access_granted = acc_granted;
2564
2565         return NT_STATUS_OK;
2566 }
2567
2568 /*******************************************************************
2569  samr_reply_connect_anon
2570  ********************************************************************/
2571
2572 NTSTATUS _samr_connect_anon(pipes_struct *p, SAMR_Q_CONNECT_ANON *q_u, SAMR_R_CONNECT_ANON *r_u)
2573 {
2574         struct samr_info *info = NULL;
2575         uint32    des_access = q_u->access_mask;
2576
2577         /* Access check */
2578
2579         if (!pipe_access_check(p)) {
2580                 DEBUG(3, ("access denied to samr_connect_anon\n"));
2581                 r_u->status = NT_STATUS_ACCESS_DENIED;
2582                 return r_u->status;
2583         }
2584
2585         /* set up the SAMR connect_anon response */
2586
2587         r_u->status = NT_STATUS_OK;
2588
2589         /* associate the user's SID with the new handle. */
2590         if ((info = get_samr_info_by_sid(NULL)) == NULL)
2591                 return NT_STATUS_NO_MEMORY;
2592
2593         /* don't give away the farm but this is probably ok.  The SA_RIGHT_SAM_ENUM_DOMAINS
2594            was observed from a win98 client trying to enumerate users (when configured  
2595            user level access control on shares)   --jerry */
2596            
2597         if (des_access == MAXIMUM_ALLOWED_ACCESS) {
2598                 /* Map to max possible knowing we're filtered below. */
2599                 des_access = GENERIC_ALL_ACCESS;
2600         }
2601
2602         se_map_generic( &des_access, &sam_generic_mapping );
2603         info->acc_granted = des_access & (SA_RIGHT_SAM_ENUM_DOMAINS|SA_RIGHT_SAM_OPEN_DOMAIN);
2604         
2605         info->status = q_u->unknown_0;
2606
2607         /* get a (unique) handle.  open a policy on it. */
2608         if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
2609                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2610
2611         return r_u->status;
2612 }
2613
2614 /*******************************************************************
2615  samr_reply_connect
2616  ********************************************************************/
2617
2618 NTSTATUS _samr_connect(pipes_struct *p, SAMR_Q_CONNECT *q_u, SAMR_R_CONNECT *r_u)
2619 {
2620         struct samr_info *info = NULL;
2621         SEC_DESC *psd = NULL;
2622         uint32    acc_granted;
2623         uint32    des_access = q_u->access_mask;
2624         NTSTATUS  nt_status;
2625         size_t    sd_size;
2626
2627
2628         DEBUG(5,("_samr_connect: %d\n", __LINE__));
2629
2630         /* Access check */
2631
2632         if (!pipe_access_check(p)) {
2633                 DEBUG(3, ("access denied to samr_connect\n"));
2634                 r_u->status = NT_STATUS_ACCESS_DENIED;
2635                 return r_u->status;
2636         }
2637
2638         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
2639         se_map_generic(&des_access, &sam_generic_mapping);
2640         
2641         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2642                 NULL, 0, des_access, &acc_granted, "_samr_connect");
2643         
2644         if ( !NT_STATUS_IS_OK(nt_status) ) 
2645                 return nt_status;
2646
2647         r_u->status = NT_STATUS_OK;
2648
2649         /* associate the user's SID and access granted with the new handle. */
2650         if ((info = get_samr_info_by_sid(NULL)) == NULL)
2651                 return NT_STATUS_NO_MEMORY;
2652
2653         info->acc_granted = acc_granted;
2654         info->status = q_u->access_mask;
2655
2656         /* get a (unique) handle.  open a policy on it. */
2657         if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
2658                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2659
2660         DEBUG(5,("_samr_connect: %d\n", __LINE__));
2661
2662         return r_u->status;
2663 }
2664
2665 /*******************************************************************
2666  samr_connect4
2667  ********************************************************************/
2668
2669 NTSTATUS _samr_connect4(pipes_struct *p, SAMR_Q_CONNECT4 *q_u, SAMR_R_CONNECT4 *r_u)
2670 {
2671         struct samr_info *info = NULL;
2672         SEC_DESC *psd = NULL;
2673         uint32    acc_granted;
2674         uint32    des_access = q_u->access_mask;
2675         NTSTATUS  nt_status;
2676         size_t    sd_size;
2677
2678
2679         DEBUG(5,("_samr_connect4: %d\n", __LINE__));
2680
2681         /* Access check */
2682
2683         if (!pipe_access_check(p)) {
2684                 DEBUG(3, ("access denied to samr_connect4\n"));
2685                 r_u->status = NT_STATUS_ACCESS_DENIED;
2686                 return r_u->status;
2687         }
2688
2689         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
2690         se_map_generic(&des_access, &sam_generic_mapping);
2691         
2692         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2693                 NULL, 0, des_access, &acc_granted, "_samr_connect4");
2694         
2695         if ( !NT_STATUS_IS_OK(nt_status) ) 
2696                 return nt_status;
2697
2698         r_u->status = NT_STATUS_OK;
2699
2700         /* associate the user's SID and access granted with the new handle. */
2701         if ((info = get_samr_info_by_sid(NULL)) == NULL)
2702                 return NT_STATUS_NO_MEMORY;
2703
2704         info->acc_granted = acc_granted;
2705         info->status = q_u->access_mask;
2706
2707         /* get a (unique) handle.  open a policy on it. */
2708         if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
2709                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2710
2711         DEBUG(5,("_samr_connect: %d\n", __LINE__));
2712
2713         return r_u->status;
2714 }
2715
2716 /*******************************************************************
2717  samr_connect5
2718  ********************************************************************/
2719
2720 NTSTATUS _samr_connect5(pipes_struct *p, SAMR_Q_CONNECT5 *q_u, SAMR_R_CONNECT5 *r_u)
2721 {
2722         struct samr_info *info = NULL;
2723         SEC_DESC *psd = NULL;
2724         uint32    acc_granted;
2725         uint32    des_access = q_u->access_mask;
2726         NTSTATUS  nt_status;
2727         POLICY_HND pol;
2728         size_t    sd_size;
2729
2730
2731         DEBUG(5,("_samr_connect5: %d\n", __LINE__));
2732
2733         ZERO_STRUCTP(r_u);
2734
2735         /* Access check */
2736
2737         if (!pipe_access_check(p)) {
2738                 DEBUG(3, ("access denied to samr_connect5\n"));
2739                 r_u->status = NT_STATUS_ACCESS_DENIED;
2740                 return r_u->status;
2741         }
2742
2743         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
2744         se_map_generic(&des_access, &sam_generic_mapping);
2745         
2746         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2747                 NULL, 0, des_access, &acc_granted, "_samr_connect5");
2748         
2749         if ( !NT_STATUS_IS_OK(nt_status) ) 
2750                 return nt_status;
2751
2752         /* associate the user's SID and access granted with the new handle. */
2753         if ((info = get_samr_info_by_sid(NULL)) == NULL)
2754                 return NT_STATUS_NO_MEMORY;
2755
2756         info->acc_granted = acc_granted;
2757         info->status = q_u->access_mask;
2758
2759         /* get a (unique) handle.  open a policy on it. */
2760         if (!create_policy_hnd(p, &pol, free_samr_info, (void *)info))
2761                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2762
2763         DEBUG(5,("_samr_connect: %d\n", __LINE__));
2764
2765         init_samr_r_connect5(r_u, &pol, NT_STATUS_OK);
2766
2767         return r_u->status;
2768 }
2769
2770 /**********************************************************************
2771  api_samr_lookup_domain
2772  **********************************************************************/
2773
2774 NTSTATUS _samr_lookup_domain(pipes_struct *p, SAMR_Q_LOOKUP_DOMAIN *q_u, SAMR_R_LOOKUP_DOMAIN *r_u)
2775 {
2776         struct samr_info *info;
2777         fstring domain_name;
2778         DOM_SID sid;
2779
2780         r_u->status = NT_STATUS_OK;
2781
2782         if (!find_policy_by_hnd(p, &q_u->connect_pol, (void**)(void *)&info))
2783                 return NT_STATUS_INVALID_HANDLE;
2784
2785         /* win9x user manager likes to use SA_RIGHT_SAM_ENUM_DOMAINS here.  
2786            Reverted that change so we will work with RAS servers again */
2787
2788         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, 
2789                 SA_RIGHT_SAM_OPEN_DOMAIN, "_samr_lookup_domain"))) 
2790         {
2791                 return r_u->status;
2792         }
2793
2794         rpcstr_pull(domain_name, q_u->uni_domain.buffer, sizeof(domain_name), q_u->uni_domain.uni_str_len*2, 0);
2795
2796         ZERO_STRUCT(sid);
2797
2798         if (strequal(domain_name, builtin_domain_name())) {
2799                 sid_copy(&sid, &global_sid_Builtin);
2800         } else {
2801                 if (!secrets_fetch_domain_sid(domain_name, &sid)) {
2802                         r_u->status = NT_STATUS_NO_SUCH_DOMAIN;
2803                 }
2804         }
2805
2806         DEBUG(2,("Returning domain sid for domain %s -> %s\n", domain_name, sid_string_static(&sid)));
2807
2808         init_samr_r_lookup_domain(r_u, &sid, r_u->status);
2809
2810         return r_u->status;
2811 }
2812
2813 /******************************************************************
2814 makes a SAMR_R_ENUM_DOMAINS structure.
2815 ********************************************************************/
2816
2817 static BOOL make_enum_domains(TALLOC_CTX *ctx, SAM_ENTRY **pp_sam,
2818                         UNISTR2 **pp_uni_name, uint32 num_sam_entries, fstring doms[])
2819 {
2820         uint32 i;
2821         SAM_ENTRY *sam;
2822         UNISTR2 *uni_name;
2823
2824         DEBUG(5, ("make_enum_domains\n"));
2825
2826         *pp_sam = NULL;
2827         *pp_uni_name = NULL;
2828
2829         if (num_sam_entries == 0)
2830                 return True;
2831
2832         sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_sam_entries);
2833         uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_sam_entries);
2834
2835         if (sam == NULL || uni_name == NULL)
2836                 return False;
2837
2838         for (i = 0; i < num_sam_entries; i++) {
2839                 init_unistr2(&uni_name[i], doms[i], UNI_FLAGS_NONE);
2840                 init_sam_entry(&sam[i], &uni_name[i], 0);
2841         }
2842
2843         *pp_sam = sam;
2844         *pp_uni_name = uni_name;
2845
2846         return True;
2847 }
2848
2849 /**********************************************************************
2850  api_samr_enum_domains
2851  **********************************************************************/
2852
2853 NTSTATUS _samr_enum_domains(pipes_struct *p, SAMR_Q_ENUM_DOMAINS *q_u, SAMR_R_ENUM_DOMAINS *r_u)
2854 {
2855         struct samr_info *info;
2856         uint32 num_entries = 2;
2857         fstring dom[2];
2858         const char *name;
2859
2860         r_u->status = NT_STATUS_OK;
2861         
2862         if (!find_policy_by_hnd(p, &q_u->pol, (void**)(void *)&info))
2863                 return NT_STATUS_INVALID_HANDLE;
2864         
2865         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, SA_RIGHT_SAM_ENUM_DOMAINS, "_samr_enum_domains"))) {
2866                 return r_u->status;
2867         }
2868
2869         name = get_global_sam_name();
2870
2871         fstrcpy(dom[0],name);
2872         strupper_m(dom[0]);
2873         fstrcpy(dom[1],"Builtin");
2874
2875         if (!make_enum_domains(p->mem_ctx, &r_u->sam, &r_u->uni_dom_name, num_entries, dom))
2876                 return NT_STATUS_NO_MEMORY;
2877
2878         init_samr_r_enum_domains(r_u, q_u->start_idx + num_entries, num_entries);
2879
2880         return r_u->status;
2881 }
2882
2883 /*******************************************************************
2884  api_samr_open_alias
2885  ********************************************************************/
2886
2887 NTSTATUS _samr_open_alias(pipes_struct *p, SAMR_Q_OPEN_ALIAS *q_u, SAMR_R_OPEN_ALIAS *r_u)
2888 {
2889         DOM_SID sid;
2890         POLICY_HND domain_pol = q_u->dom_pol;
2891         uint32 alias_rid = q_u->rid_alias;
2892         POLICY_HND *alias_pol = &r_u->pol;
2893         struct    samr_info *info = NULL;
2894         SEC_DESC *psd = NULL;
2895         uint32    acc_granted;
2896         uint32    des_access = q_u->access_mask;
2897         size_t    sd_size;
2898         NTSTATUS  status;
2899         SE_PRIV se_rights;
2900
2901         r_u->status = NT_STATUS_OK;
2902
2903         /* find the domain policy and get the SID / access bits stored in the domain policy */
2904         
2905         if ( !get_lsa_policy_samr_sid(p, &domain_pol, &sid, &acc_granted, NULL) )
2906                 return NT_STATUS_INVALID_HANDLE;
2907         
2908         status = access_check_samr_function(acc_granted, 
2909                 SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_alias");
2910                 
2911         if ( !NT_STATUS_IS_OK(status) ) 
2912                 return status;
2913
2914         /* append the alias' RID to it */
2915         
2916         if (!sid_append_rid(&sid, alias_rid))
2917                 return NT_STATUS_NO_SUCH_ALIAS;
2918                 
2919         /*check if access can be granted as requested by client. */
2920         
2921         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &ali_generic_mapping, NULL, 0);
2922         se_map_generic(&des_access,&ali_generic_mapping);
2923         
2924         se_priv_copy( &se_rights, &se_add_users );
2925         
2926         
2927         status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2928                 &se_rights, GENERIC_RIGHTS_ALIAS_WRITE, des_access, 
2929                 &acc_granted, "_samr_open_alias");
2930                 
2931         if ( !NT_STATUS_IS_OK(status) )
2932                 return status;
2933
2934         {
2935                 /* Check we actually have the requested alias */
2936                 enum SID_NAME_USE type;
2937                 BOOL result;
2938                 gid_t gid;
2939
2940                 become_root();
2941                 result = lookup_sid(NULL, &sid, NULL, NULL, &type);
2942                 unbecome_root();
2943
2944                 if (!result || (type != SID_NAME_ALIAS)) {
2945                         return NT_STATUS_NO_SUCH_ALIAS;
2946                 }
2947
2948                 /* make sure there is a mapping */
2949                 
2950                 if ( !sid_to_gid( &sid, &gid ) ) {
2951                         return NT_STATUS_NO_SUCH_ALIAS;
2952                 }
2953
2954         }
2955
2956         /* associate the alias SID with the new handle. */
2957         if ((info = get_samr_info_by_sid(&sid)) == NULL)
2958                 return NT_STATUS_NO_MEMORY;
2959                 
2960         info->acc_granted = acc_granted;
2961
2962         /* get a (unique) handle.  open a policy on it. */
2963         if (!create_policy_hnd(p, alias_pol, free_samr_info, (void *)info))
2964                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2965
2966         return r_u->status;
2967 }
2968
2969 /*******************************************************************
2970  set_user_info_7
2971  ********************************************************************/
2972 static NTSTATUS set_user_info_7(TALLOC_CTX *mem_ctx,
2973                                 const SAM_USER_INFO_7 *id7, struct samu *pwd)
2974 {
2975         fstring new_name;
2976         NTSTATUS rc;
2977
2978         if (id7 == NULL) {
2979                 DEBUG(5, ("set_user_info_7: NULL id7\n"));
2980                 TALLOC_FREE(pwd);
2981                 return NT_STATUS_ACCESS_DENIED;
2982         }
2983
2984         if(!rpcstr_pull(new_name, id7->uni_name.buffer, sizeof(new_name), id7->uni_name.uni_str_len*2, 0)) {
2985                 DEBUG(5, ("set_user_info_7: failed to get new username\n"));
2986                 TALLOC_FREE(pwd);
2987                 return NT_STATUS_ACCESS_DENIED;
2988         }
2989
2990         /* check to see if the new username already exists.  Note: we can't
2991            reliably lock all backends, so there is potentially the 
2992            possibility that a user can be created in between this check and
2993            the rename.  The rename should fail, but may not get the
2994            exact same failure status code.  I think this is small enough
2995            of a window for this type of operation and the results are
2996            simply that the rename fails with a slightly different status
2997            code (like UNSUCCESSFUL instead of ALREADY_EXISTS). */
2998
2999         rc = can_create(mem_ctx, new_name);
3000         if (!NT_STATUS_IS_OK(rc)) {
3001                 return rc;
3002         }
3003
3004         rc = pdb_rename_sam_account(pwd, new_name);
3005
3006         TALLOC_FREE(pwd);
3007         return rc;
3008 }
3009
3010 /*******************************************************************
3011  set_user_info_16
3012  ********************************************************************/
3013
3014 static BOOL set_user_info_16(const SAM_USER_INFO_16 *id16, struct samu *pwd)
3015 {
3016         if (id16 == NULL) {
3017                 DEBUG(5, ("set_user_info_16: NULL id16\n"));
3018                 TALLOC_FREE(pwd);
3019                 return False;
3020         }
3021         
3022         /* FIX ME: check if the value is really changed --metze */
3023         if (!pdb_set_acct_ctrl(pwd, id16->acb_info, PDB_CHANGED)) {
3024                 TALLOC_FREE(pwd);
3025                 return False;
3026         }
3027
3028         if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) {
3029                 TALLOC_FREE(pwd);
3030                 return False;
3031         }
3032
3033         TALLOC_FREE(pwd);
3034
3035         return True;
3036 }
3037
3038 /*******************************************************************
3039  set_user_info_18
3040  ********************************************************************/
3041
3042 static BOOL set_user_info_18(SAM_USER_INFO_18 *id18, struct samu *pwd)
3043 {
3044
3045         if (id18 == NULL) {
3046                 DEBUG(2, ("set_user_info_18: id18 is NULL\n"));
3047                 TALLOC_FREE(pwd);
3048                 return False;
3049         }
3050  
3051         if (!pdb_set_lanman_passwd (pwd, id18->lm_pwd, PDB_CHANGED)) {
3052                 TALLOC_FREE(pwd);
3053                 return False;
3054         }
3055         if (!pdb_set_nt_passwd     (pwd, id18->nt_pwd, PDB_CHANGED)) {
3056                 TALLOC_FREE(pwd);
3057                 return False;
3058         }
3059         if (!pdb_set_pass_changed_now (pwd)) {
3060                 TALLOC_FREE(pwd);
3061                 return False; 
3062         }
3063  
3064         if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) {
3065                 TALLOC_FREE(pwd);
3066                 return False;
3067         }
3068
3069         TALLOC_FREE(pwd);
3070         return True;
3071 }
3072
3073 /*******************************************************************
3074  set_user_info_20
3075  ********************************************************************/
3076
3077 static BOOL set_user_info_20(SAM_USER_INFO_20 *id20, struct samu *pwd)
3078 {
3079         if (id20 == NULL) {
3080                 DEBUG(5, ("set_user_info_20: NULL id20\n"));
3081                 return False;
3082         }
3083  
3084         copy_id20_to_sam_passwd(pwd, id20);
3085
3086         /* write the change out */
3087         if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) {
3088                 TALLOC_FREE(pwd);
3089                 return False;
3090         }
3091
3092         TALLOC_FREE(pwd);
3093
3094         return True;
3095 }
3096 /*******************************************************************
3097  set_user_info_21
3098  ********************************************************************/
3099
3100 static NTSTATUS set_user_info_21(TALLOC_CTX *mem_ctx, SAM_USER_INFO_21 *id21,
3101                                  struct samu *pwd)
3102 {
3103         fstring new_name;
3104         NTSTATUS status;
3105         
3106         if (id21 == NULL) {
3107                 DEBUG(5, ("set_user_info_21: NULL id21\n"));
3108                 return NT_STATUS_INVALID_PARAMETER;
3109         }
3110
3111         /* we need to separately check for an account rename first */
3112         
3113         if (rpcstr_pull(new_name, id21->uni_user_name.buffer, 
3114                 sizeof(new_name), id21->uni_user_name.uni_str_len*2, 0) 
3115                 && (!strequal(new_name, pdb_get_username(pwd)))) 
3116         {
3117
3118                 /* check to see if the new username already exists.  Note: we can't
3119                    reliably lock all backends, so there is potentially the 
3120                    possibility that a user can be created in between this check and
3121                    the rename.  The rename should fail, but may not get the
3122                    exact same failure status code.  I think this is small enough
3123                    of a window for this type of operation and the results are
3124                    simply that the rename fails with a slightly different status
3125                    code (like UNSUCCESSFUL instead of ALREADY_EXISTS). */
3126
3127                 status = can_create(mem_ctx, new_name);
3128                 if (!NT_STATUS_IS_OK(status)) {
3129                         return status;
3130                 }
3131
3132                 status = pdb_rename_sam_account(pwd, new_name);
3133
3134                 if (!NT_STATUS_IS_OK(status)) {
3135                         DEBUG(0,("set_user_info_21: failed to rename account: %s\n", 
3136                                 nt_errstr(status)));
3137                         TALLOC_FREE(pwd);
3138                         return status;
3139                 }
3140
3141                 /* set the new username so that later 
3142                    functions can work on the new account */
3143                 pdb_set_username(pwd, new_name, PDB_SET);
3144         }
3145
3146         copy_id21_to_sam_passwd(pwd, id21);
3147  
3148         /*
3149          * The funny part about the previous two calls is
3150          * that pwd still has the password hashes from the
3151          * passdb entry.  These have not been updated from
3152          * id21.  I don't know if they need to be set.    --jerry
3153          */
3154  
3155         if ( IS_SAM_CHANGED(pwd, PDB_GROUPSID) ) {
3156                 status = pdb_set_unix_primary_group(mem_ctx, pwd);
3157                 if ( !NT_STATUS_IS_OK(status) ) {
3158                         return status;
3159                 }
3160         }
3161         
3162         /* Don't worry about writing out the user account since the
3163            primary group SID is generated solely from the user's Unix 
3164            primary group. */
3165
3166         /* write the change out */
3167         if(!NT_STATUS_IS_OK(status = pdb_update_sam_account(pwd))) {
3168                 TALLOC_FREE(pwd);
3169                 return status;
3170         }
3171
3172         TALLOC_FREE(pwd);
3173
3174         return NT_STATUS_OK;
3175 }
3176
3177 /*******************************************************************
3178  set_user_info_23
3179  ********************************************************************/
3180
3181 static NTSTATUS set_user_info_23(TALLOC_CTX *mem_ctx, SAM_USER_INFO_23 *id23,
3182                                  struct samu *pwd)
3183 {
3184         pstring plaintext_buf;
3185         uint32 len;
3186         uint16 acct_ctrl;
3187         NTSTATUS status;
3188  
3189         if (id23 == NULL) {
3190                 DEBUG(5, ("set_user_info_23: NULL id23\n"));
3191                 return NT_STATUS_INVALID_PARAMETER;
3192         }
3193  
3194         DEBUG(5, ("Attempting administrator password change (level 23) for user %s\n",
3195                   pdb_get_username(pwd)));
3196
3197         acct_ctrl = pdb_get_acct_ctrl(pwd);
3198
3199         if (!decode_pw_buffer(id23->pass, plaintext_buf, 256, &len, STR_UNICODE)) {
3200                 TALLOC_FREE(pwd);
3201                 return NT_STATUS_INVALID_PARAMETER;
3202         }
3203   
3204         if (!pdb_set_plaintext_passwd (pwd, plaintext_buf)) {
3205                 TALLOC_FREE(pwd);
3206                 return NT_STATUS_ACCESS_DENIED;
3207         }
3208  
3209         copy_id23_to_sam_passwd(pwd, id23);
3210  
3211         /* if it's a trust account, don't update /etc/passwd */
3212         if (    ( (acct_ctrl &  ACB_DOMTRUST) == ACB_DOMTRUST ) ||
3213                 ( (acct_ctrl &  ACB_WSTRUST) ==  ACB_WSTRUST) ||
3214                 ( (acct_ctrl &  ACB_SVRTRUST) ==  ACB_SVRTRUST) ) {
3215                 DEBUG(5, ("Changing trust account.  Not updating /etc/passwd\n"));
3216         } else  {
3217                 /* update the UNIX password */
3218                 if (lp_unix_password_sync() ) {
3219                         struct passwd *passwd;
3220                         if (pdb_get_username(pwd) == NULL) {
3221                                 DEBUG(1, ("chgpasswd: User without name???\n"));
3222                                 TALLOC_FREE(pwd);
3223                                 return NT_STATUS_ACCESS_DENIED;
3224                         }
3225
3226                         if ((passwd = Get_Pwnam(pdb_get_username(pwd))) == NULL) {
3227                                 DEBUG(1, ("chgpasswd: Username does not exist in system !?!\n"));
3228                         }
3229                         
3230                         if(!chgpasswd(pdb_get_username(pwd), passwd, "", plaintext_buf, True)) {
3231                                 TALLOC_FREE(pwd);
3232                                 return NT_STATUS_ACCESS_DENIED;
3233                         }
3234                 }
3235         }
3236  
3237         ZERO_STRUCT(plaintext_buf);
3238  
3239         if (IS_SAM_CHANGED(pwd, PDB_GROUPSID) &&
3240             (!NT_STATUS_IS_OK(status =  pdb_set_unix_primary_group(mem_ctx,
3241                                                                    pwd)))) {
3242                 TALLOC_FREE(pwd);
3243                 return status;
3244         }
3245
3246         if(!NT_STATUS_IS_OK(status = pdb_update_sam_account(pwd))) {
3247                 TALLOC_FREE(pwd);
3248                 return status;
3249         }
3250  
3251         TALLOC_FREE(pwd);
3252
3253         return NT_STATUS_OK;
3254 }
3255
3256 /*******************************************************************
3257  set_user_info_pw
3258  ********************************************************************/
3259
3260 static BOOL set_user_info_pw(uint8 *pass, struct samu *pwd)
3261 {
3262         uint32 len;
3263         pstring plaintext_buf;
3264         uint32 acct_ctrl;
3265  
3266         DEBUG(5, ("Attempting administrator password change for user %s\n",
3267                   pdb_get_username(pwd)));
3268
3269         acct_ctrl = pdb_get_acct_ctrl(pwd);
3270
3271         ZERO_STRUCT(plaintext_buf);
3272  
3273         if (!decode_pw_buffer(pass, plaintext_buf, 256, &len, STR_UNICODE)) {
3274                 TALLOC_FREE(pwd);
3275                 return False;
3276         }
3277
3278         if (!pdb_set_plaintext_passwd (pwd, plaintext_buf)) {