r13590: * replace all pdb_init_sam[_talloc]() calls with samu_new()
[kai/samba-autobuild/.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 François 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, uint16 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, (uint32 *)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         uint32 *attrs = NULL;
1622         UNIHDR *hdr_name = NULL;
1623         UNISTR2 *uni_name = NULL;
1624         DOM_SID pol_sid;
1625         int num_rids = q_u->num_rids1;
1626         uint32 acc_granted;
1627         
1628         r_u->status = NT_STATUS_OK;
1629
1630         DEBUG(5,("_samr_lookup_rids: %d\n", __LINE__));
1631
1632         /* find the policy handle.  open a policy on it. */
1633         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &pol_sid, &acc_granted, NULL))
1634                 return NT_STATUS_INVALID_HANDLE;
1635
1636         if (num_rids > 1000) {
1637                 DEBUG(0, ("Got asked for %d rids (more than 1000) -- according "
1638                           "to samba4 idl this is not possible\n", num_rids));
1639                 return NT_STATUS_UNSUCCESSFUL;
1640         }
1641
1642         names = TALLOC_ZERO_ARRAY(p->mem_ctx, const char *, num_rids);
1643         attrs = TALLOC_ZERO_ARRAY(p->mem_ctx, uint32, num_rids);
1644
1645         if ((num_rids != 0) && ((names == NULL) || (attrs == NULL)))
1646                 return NT_STATUS_NO_MEMORY;
1647
1648         become_root();  /* lookup_sid can require root privs */
1649         r_u->status = pdb_lookup_rids(&pol_sid, num_rids, q_u->rid,
1650                                       names, attrs);
1651         unbecome_root();
1652
1653         if(!make_samr_lookup_rids(p->mem_ctx, num_rids, names,
1654                                   &hdr_name, &uni_name))
1655                 return NT_STATUS_NO_MEMORY;
1656
1657         init_samr_r_lookup_rids(r_u, num_rids, hdr_name, uni_name, attrs);
1658
1659         DEBUG(5,("_samr_lookup_rids: %d\n", __LINE__));
1660
1661         return r_u->status;
1662 }
1663
1664 /*******************************************************************
1665  _samr_open_user. Safe - gives out no passwd info.
1666  ********************************************************************/
1667
1668 NTSTATUS _samr_open_user(pipes_struct *p, SAMR_Q_OPEN_USER *q_u, SAMR_R_OPEN_USER *r_u)
1669 {
1670         struct samu *sampass=NULL;
1671         DOM_SID sid;
1672         POLICY_HND domain_pol = q_u->domain_pol;
1673         POLICY_HND *user_pol = &r_u->user_pol;
1674         struct samr_info *info = NULL;
1675         SEC_DESC *psd = NULL;
1676         uint32    acc_granted;
1677         uint32    des_access = q_u->access_mask;
1678         size_t    sd_size;
1679         BOOL ret;
1680         NTSTATUS nt_status;
1681         SE_PRIV se_rights;
1682
1683         r_u->status = NT_STATUS_OK;
1684
1685         /* find the domain policy handle and get domain SID / access bits in the domain policy. */
1686         
1687         if ( !get_lsa_policy_samr_sid(p, &domain_pol, &sid, &acc_granted, NULL) )
1688                 return NT_STATUS_INVALID_HANDLE;
1689         
1690         nt_status = access_check_samr_function( acc_granted, 
1691                 SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_user" );
1692                 
1693         if ( !NT_STATUS_IS_OK(nt_status) )
1694                 return nt_status;
1695
1696         if ( !(sampass = samu_new( p->mem_ctx )) ) {
1697                 return NT_STATUS_NO_MEMORY;
1698         }
1699
1700         /* append the user's RID to it */
1701         
1702         if (!sid_append_rid(&sid, q_u->user_rid))
1703                 return NT_STATUS_NO_SUCH_USER;
1704         
1705         /* check if access can be granted as requested by client. */
1706         
1707         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &sid, SAMR_USR_RIGHTS_WRITE_PW);
1708         se_map_generic(&des_access, &usr_generic_mapping);
1709         
1710         se_priv_copy( &se_rights, &se_machine_account );
1711         se_priv_add( &se_rights, &se_add_users );
1712         
1713         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
1714                 &se_rights, GENERIC_RIGHTS_USER_WRITE, des_access, 
1715                 &acc_granted, "_samr_open_user");
1716                 
1717         if ( !NT_STATUS_IS_OK(nt_status) )
1718                 return nt_status;
1719
1720         become_root();
1721         ret=pdb_getsampwsid(sampass, &sid);
1722         unbecome_root();
1723
1724         /* check that the SID exists in our domain. */
1725         if (ret == False) {
1726                 return NT_STATUS_NO_SUCH_USER;
1727         }
1728
1729         TALLOC_FREE(sampass);
1730
1731         /* associate the user's SID and access bits with the new handle. */
1732         if ((info = get_samr_info_by_sid(&sid)) == NULL)
1733                 return NT_STATUS_NO_MEMORY;
1734         info->acc_granted = acc_granted;
1735
1736         /* get a (unique) handle.  open a policy on it. */
1737         if (!create_policy_hnd(p, user_pol, free_samr_info, (void *)info))
1738                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1739
1740         return r_u->status;
1741 }
1742
1743 /*************************************************************************
1744  get_user_info_7. Safe. Only gives out account_name.
1745  *************************************************************************/
1746
1747 static NTSTATUS get_user_info_7(TALLOC_CTX *mem_ctx, SAM_USER_INFO_7 *id7, DOM_SID *user_sid)
1748 {
1749         struct samu *smbpass=NULL;
1750         BOOL ret;
1751
1752         if ( !(smbpass = samu_new( mem_ctx )) ) {
1753                 return NT_STATUS_NO_MEMORY;
1754         }
1755         
1756         become_root();
1757         ret = pdb_getsampwsid(smbpass, user_sid);
1758         unbecome_root();
1759
1760         if ( !ret ) {
1761                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1762                 return NT_STATUS_NO_SUCH_USER;
1763         }
1764
1765         DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
1766
1767         ZERO_STRUCTP(id7);
1768         init_sam_user_info7(id7, pdb_get_username(smbpass) );
1769
1770         TALLOC_FREE(smbpass);
1771
1772         return NT_STATUS_OK;
1773 }
1774
1775 /*************************************************************************
1776  get_user_info_9. Only gives out primary group SID.
1777  *************************************************************************/
1778 static NTSTATUS get_user_info_9(TALLOC_CTX *mem_ctx, SAM_USER_INFO_9 * id9, DOM_SID *user_sid)
1779 {
1780         struct samu *smbpass=NULL;
1781         BOOL ret;
1782
1783         if ( !(smbpass = samu_new( mem_ctx )) ) {
1784                 return NT_STATUS_NO_MEMORY;
1785         }
1786
1787         become_root();
1788         ret = pdb_getsampwsid(smbpass, user_sid);
1789         unbecome_root();
1790
1791         if (ret==False) {
1792                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1793                 return NT_STATUS_NO_SUCH_USER;
1794         }
1795
1796         DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
1797
1798         ZERO_STRUCTP(id9);
1799         init_sam_user_info9(id9, pdb_get_group_rid(smbpass) );
1800
1801         TALLOC_FREE(smbpass);
1802
1803         return NT_STATUS_OK;
1804 }
1805
1806 /*************************************************************************
1807  get_user_info_16. Safe. Only gives out acb bits.
1808  *************************************************************************/
1809
1810 static NTSTATUS get_user_info_16(TALLOC_CTX *mem_ctx, SAM_USER_INFO_16 *id16, DOM_SID *user_sid)
1811 {
1812         struct samu *smbpass=NULL;
1813         BOOL ret;
1814
1815         if ( !(smbpass = samu_new( mem_ctx )) ) {
1816                 return NT_STATUS_NO_MEMORY;
1817         }
1818
1819         become_root();
1820         ret = pdb_getsampwsid(smbpass, user_sid);
1821         unbecome_root();
1822
1823         if (ret==False) {
1824                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1825                 return NT_STATUS_NO_SUCH_USER;
1826         }
1827
1828         DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) ));
1829
1830         ZERO_STRUCTP(id16);
1831         init_sam_user_info16(id16, pdb_get_acct_ctrl(smbpass) );
1832
1833         TALLOC_FREE(smbpass);
1834
1835         return NT_STATUS_OK;
1836 }
1837
1838 /*************************************************************************
1839  get_user_info_18. OK - this is the killer as it gives out password info.
1840  Ensure that this is only allowed on an encrypted connection with a root
1841  user. JRA. 
1842  *************************************************************************/
1843
1844 static NTSTATUS get_user_info_18(pipes_struct *p, TALLOC_CTX *mem_ctx, SAM_USER_INFO_18 * id18, DOM_SID *user_sid)
1845 {
1846         struct samu *smbpass=NULL;
1847         BOOL ret;
1848
1849         if (p->auth.auth_type != PIPE_AUTH_TYPE_NTLMSSP || p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) {
1850                 return NT_STATUS_ACCESS_DENIED;
1851         }
1852
1853         if (p->auth.auth_level != PIPE_AUTH_LEVEL_PRIVACY) {
1854                 return NT_STATUS_ACCESS_DENIED;
1855         }
1856
1857         /*
1858          * Do *NOT* do become_root()/unbecome_root() here ! JRA.
1859          */
1860
1861         if ( !(smbpass = samu_new( mem_ctx )) ) {
1862                 return NT_STATUS_NO_MEMORY;
1863         }
1864
1865         ret = pdb_getsampwsid(smbpass, user_sid);
1866
1867         if (ret == False) {
1868                 DEBUG(4, ("User %s not found\n", sid_string_static(user_sid)));
1869                 TALLOC_FREE(smbpass);
1870                 return (geteuid() == (uid_t)0) ? NT_STATUS_NO_SUCH_USER : NT_STATUS_ACCESS_DENIED;
1871         }
1872
1873         DEBUG(3,("User:[%s] 0x%x\n", pdb_get_username(smbpass), pdb_get_acct_ctrl(smbpass) ));
1874
1875         if ( pdb_get_acct_ctrl(smbpass) & ACB_DISABLED) {
1876                 TALLOC_FREE(smbpass);
1877                 return NT_STATUS_ACCOUNT_DISABLED;
1878         }
1879
1880         ZERO_STRUCTP(id18);
1881         init_sam_user_info18(id18, pdb_get_lanman_passwd(smbpass), pdb_get_nt_passwd(smbpass));
1882         
1883         TALLOC_FREE(smbpass);
1884
1885         return NT_STATUS_OK;
1886 }
1887
1888 /*************************************************************************
1889  get_user_info_20
1890  *************************************************************************/
1891
1892 static NTSTATUS get_user_info_20(TALLOC_CTX *mem_ctx, SAM_USER_INFO_20 *id20, DOM_SID *user_sid)
1893 {
1894         struct samu *sampass=NULL;
1895         BOOL ret;
1896
1897         if ( !(sampass = samu_new( mem_ctx )) ) {
1898                 return NT_STATUS_NO_MEMORY;
1899         }
1900
1901         become_root();
1902         ret = pdb_getsampwsid(sampass, user_sid);
1903         unbecome_root();
1904
1905         if (ret == False) {
1906                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1907                 return NT_STATUS_NO_SUCH_USER;
1908         }
1909
1910         samr_clear_sam_passwd(sampass);
1911
1912         DEBUG(3,("User:[%s]\n",  pdb_get_username(sampass) ));
1913
1914         ZERO_STRUCTP(id20);
1915         init_sam_user_info20A(id20, sampass);
1916         
1917         TALLOC_FREE(sampass);
1918
1919         return NT_STATUS_OK;
1920 }
1921
1922 /*************************************************************************
1923  get_user_info_21
1924  *************************************************************************/
1925
1926 static NTSTATUS get_user_info_21(TALLOC_CTX *mem_ctx, SAM_USER_INFO_21 *id21, 
1927                                  DOM_SID *user_sid, DOM_SID *domain_sid)
1928 {
1929         struct samu *sampass=NULL;
1930         BOOL ret;
1931         NTSTATUS nt_status;
1932
1933         if ( !(sampass = samu_new( mem_ctx )) ) {
1934                 return NT_STATUS_NO_MEMORY;
1935         }
1936
1937         become_root();
1938         ret = pdb_getsampwsid(sampass, user_sid);
1939         unbecome_root();
1940
1941         if (ret == False) {
1942                 DEBUG(4,("User %s not found\n", sid_string_static(user_sid)));
1943                 return NT_STATUS_NO_SUCH_USER;
1944         }
1945
1946         samr_clear_sam_passwd(sampass);
1947
1948         DEBUG(3,("User:[%s]\n",  pdb_get_username(sampass) ));
1949
1950         ZERO_STRUCTP(id21);
1951         nt_status = init_sam_user_info21A(id21, sampass, domain_sid);
1952         
1953         TALLOC_FREE(sampass);
1954
1955         return NT_STATUS_OK;
1956 }
1957
1958 /*******************************************************************
1959  _samr_query_userinfo
1960  ********************************************************************/
1961
1962 NTSTATUS _samr_query_userinfo(pipes_struct *p, SAMR_Q_QUERY_USERINFO *q_u, SAMR_R_QUERY_USERINFO *r_u)
1963 {
1964         SAM_USERINFO_CTR *ctr;
1965         struct samr_info *info = NULL;
1966         DOM_SID domain_sid;
1967         uint32 rid;
1968         
1969         r_u->status=NT_STATUS_OK;
1970
1971         /* search for the handle */
1972         if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
1973                 return NT_STATUS_INVALID_HANDLE;
1974
1975         domain_sid = info->sid;
1976
1977         sid_split_rid(&domain_sid, &rid);
1978
1979         if (!sid_check_is_in_our_domain(&info->sid))
1980                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
1981
1982         DEBUG(5,("_samr_query_userinfo: sid:%s\n", sid_string_static(&info->sid)));
1983
1984         ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_USERINFO_CTR);
1985         if (!ctr)
1986                 return NT_STATUS_NO_MEMORY;
1987
1988         ZERO_STRUCTP(ctr);
1989
1990         /* ok!  user info levels (lots: see MSDEV help), off we go... */
1991         ctr->switch_value = q_u->switch_value;
1992
1993         DEBUG(5,("_samr_query_userinfo: user info level: %d\n", q_u->switch_value));
1994
1995         switch (q_u->switch_value) {
1996         case 7:
1997                 ctr->info.id7 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_7);
1998                 if (ctr->info.id7 == NULL)
1999                         return NT_STATUS_NO_MEMORY;
2000
2001                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_7(p->mem_ctx, ctr->info.id7, &info->sid)))
2002                         return r_u->status;
2003                 break;
2004         case 9:
2005                 ctr->info.id9 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_9);
2006                 if (ctr->info.id9 == NULL)
2007                         return NT_STATUS_NO_MEMORY;
2008
2009                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_9(p->mem_ctx, ctr->info.id9, &info->sid)))
2010                         return r_u->status;
2011                 break;
2012         case 16:
2013                 ctr->info.id16 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_16);
2014                 if (ctr->info.id16 == NULL)
2015                         return NT_STATUS_NO_MEMORY;
2016
2017                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_16(p->mem_ctx, ctr->info.id16, &info->sid)))
2018                         return r_u->status;
2019                 break;
2020
2021         case 18:
2022                 ctr->info.id18 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_18);
2023                 if (ctr->info.id18 == NULL)
2024                         return NT_STATUS_NO_MEMORY;
2025
2026                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_18(p, p->mem_ctx, ctr->info.id18, &info->sid)))
2027                         return r_u->status;
2028                 break;
2029                 
2030         case 20:
2031                 ctr->info.id20 = TALLOC_ZERO_P(p->mem_ctx,SAM_USER_INFO_20);
2032                 if (ctr->info.id20 == NULL)
2033                         return NT_STATUS_NO_MEMORY;
2034                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_20(p->mem_ctx, ctr->info.id20, &info->sid)))
2035                         return r_u->status;
2036                 break;
2037
2038         case 21:
2039                 ctr->info.id21 = TALLOC_ZERO_P(p->mem_ctx,SAM_USER_INFO_21);
2040                 if (ctr->info.id21 == NULL)
2041                         return NT_STATUS_NO_MEMORY;
2042                 if (!NT_STATUS_IS_OK(r_u->status = get_user_info_21(p->mem_ctx, ctr->info.id21, 
2043                                                                     &info->sid, &domain_sid)))
2044                         return r_u->status;
2045                 break;
2046
2047         default:
2048                 return NT_STATUS_INVALID_INFO_CLASS;
2049         }
2050
2051         init_samr_r_query_userinfo(r_u, ctr, r_u->status);
2052
2053         DEBUG(5,("_samr_query_userinfo: %d\n", __LINE__));
2054         
2055         return r_u->status;
2056 }
2057
2058 /*******************************************************************
2059  samr_reply_query_usergroups
2060  ********************************************************************/
2061
2062 NTSTATUS _samr_query_usergroups(pipes_struct *p, SAMR_Q_QUERY_USERGROUPS *q_u, SAMR_R_QUERY_USERGROUPS *r_u)
2063 {
2064         struct samu *sam_pass=NULL;
2065         DOM_SID  sid;
2066         DOM_SID *sids;
2067         DOM_GID dom_gid;
2068         DOM_GID *gids = NULL;
2069         uint32 primary_group_rid;
2070         size_t num_groups = 0;
2071         gid_t *unix_gids;
2072         size_t i, num_gids;
2073         uint32 acc_granted;
2074         BOOL ret;
2075         NTSTATUS result;
2076
2077         /*
2078          * from the SID in the request:
2079          * we should send back the list of DOMAIN GROUPS
2080          * the user is a member of
2081          *
2082          * and only the DOMAIN GROUPS
2083          * no ALIASES !!! neither aliases of the domain
2084          * nor aliases of the builtin SID
2085          *
2086          * JFM, 12/2/2001
2087          */
2088
2089         r_u->status = NT_STATUS_OK;
2090
2091         DEBUG(5,("_samr_query_usergroups: %d\n", __LINE__));
2092
2093         /* find the policy handle.  open a policy on it. */
2094         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &sid, &acc_granted, NULL))
2095                 return NT_STATUS_INVALID_HANDLE;
2096         
2097         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_USER_GET_GROUPS, "_samr_query_usergroups"))) {
2098                 return r_u->status;
2099         }
2100
2101         if (!sid_check_is_in_our_domain(&sid))
2102                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
2103
2104         if ( !(sam_pass = samu_new( p->mem_ctx )) ) {
2105                 return NT_STATUS_NO_MEMORY;
2106         }
2107
2108         become_root();
2109         ret = pdb_getsampwsid(sam_pass, &sid);
2110         unbecome_root();
2111
2112         if (!ret) {
2113                 DEBUG(10, ("pdb_getsampwsid failed for %s\n",
2114                            sid_string_static(&sid)));
2115                 return NT_STATUS_NO_SUCH_USER;
2116         }
2117
2118         sids = NULL;
2119
2120         become_root();
2121         result = pdb_enum_group_memberships(p->mem_ctx, sam_pass,
2122                                             &sids, &unix_gids, &num_groups);
2123         unbecome_root();
2124
2125         if (!NT_STATUS_IS_OK(result)) {
2126                 DEBUG(10, ("pdb_enum_group_memberships failed for %s\n",
2127                            sid_string_static(&sid)));
2128                 return result;
2129         }
2130
2131         gids = NULL;
2132         num_gids = 0;
2133
2134         dom_gid.attr = (SE_GROUP_MANDATORY|SE_GROUP_ENABLED_BY_DEFAULT|
2135                         SE_GROUP_ENABLED);
2136
2137         if (!sid_peek_check_rid(get_global_sam_sid(),
2138                                 pdb_get_group_sid(sam_pass),
2139                                 &primary_group_rid)) {
2140                 DEBUG(5, ("Group sid %s for user %s not in our domain\n",
2141                           sid_string_static(pdb_get_group_sid(sam_pass)),
2142                           pdb_get_username(sam_pass)));
2143                 TALLOC_FREE(sam_pass);
2144                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
2145         }
2146
2147         dom_gid.g_rid = primary_group_rid;
2148
2149         ADD_TO_ARRAY(p->mem_ctx, DOM_GID, dom_gid, &gids, &num_gids);
2150
2151         for (i=0; i<num_groups; i++) {
2152
2153                 if (!sid_peek_check_rid(get_global_sam_sid(),
2154                                         &(sids[i]), &dom_gid.g_rid)) {
2155                         DEBUG(10, ("Found sid %s not in our domain\n",
2156                                    sid_string_static(&sids[i])));
2157                         continue;
2158                 }
2159
2160                 if (dom_gid.g_rid == primary_group_rid) {
2161                         /* We added the primary group directly from the
2162                          * sam_account. The other SIDs are unique from
2163                          * enum_group_memberships */
2164                         continue;
2165                 }
2166
2167                 ADD_TO_ARRAY(p->mem_ctx, DOM_GID, dom_gid, &gids, &num_gids);
2168         }
2169         
2170         /* construct the response.  lkclXXXX: gids are not copied! */
2171         init_samr_r_query_usergroups(r_u, num_gids, gids, r_u->status);
2172         
2173         DEBUG(5,("_samr_query_usergroups: %d\n", __LINE__));
2174         
2175         return r_u->status;
2176 }
2177
2178 /*******************************************************************
2179  _samr_query_dom_info
2180  ********************************************************************/
2181
2182 NTSTATUS _samr_query_dom_info(pipes_struct *p, SAMR_Q_QUERY_DOMAIN_INFO *q_u, SAMR_R_QUERY_DOMAIN_INFO *r_u)
2183 {
2184         struct samr_info *info = NULL;
2185         SAM_UNK_CTR *ctr;
2186         uint32 min_pass_len,pass_hist,password_properties;
2187         time_t u_expire, u_min_age;
2188         NTTIME nt_expire, nt_min_age;
2189
2190         time_t u_lock_duration, u_reset_time;
2191         NTTIME nt_lock_duration, nt_reset_time;
2192         uint32 lockout;
2193         time_t u_logout;
2194         NTTIME nt_logout;
2195
2196         uint32 account_policy_temp;
2197
2198         time_t seq_num;
2199         uint32 server_role;
2200
2201         uint32 num_users=0, num_groups=0, num_aliases=0;
2202
2203         if ((ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_UNK_CTR)) == NULL) {
2204                 return NT_STATUS_NO_MEMORY;
2205         }
2206
2207         ZERO_STRUCTP(ctr);
2208
2209         r_u->status = NT_STATUS_OK;
2210         
2211         DEBUG(5,("_samr_query_dom_info: %d\n", __LINE__));
2212         
2213         /* find the policy handle.  open a policy on it. */
2214         if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info)) {
2215                 return NT_STATUS_INVALID_HANDLE;
2216         }
2217         
2218         switch (q_u->switch_value) {
2219                 case 0x01:
2220                         
2221                         become_root();
2222
2223                         /* AS ROOT !!! */
2224
2225                         pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp);
2226                         min_pass_len = account_policy_temp;
2227
2228                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp);
2229                         pass_hist = account_policy_temp;
2230
2231                         pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp);
2232                         password_properties = account_policy_temp;
2233
2234                         pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp);
2235                         u_expire = account_policy_temp;
2236
2237                         pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp);
2238                         u_min_age = account_policy_temp;
2239
2240                         /* !AS ROOT */
2241                         
2242                         unbecome_root();
2243
2244                         unix_to_nt_time_abs(&nt_expire, u_expire);
2245                         unix_to_nt_time_abs(&nt_min_age, u_min_age);
2246
2247                         init_unk_info1(&ctr->info.inf1, (uint16)min_pass_len, (uint16)pass_hist, 
2248                                        password_properties, nt_expire, nt_min_age);
2249                         break;
2250                 case 0x02:
2251
2252                         become_root();
2253
2254                         /* AS ROOT !!! */
2255
2256                         num_users = count_sam_users(info->disp_info, ACB_NORMAL);
2257                         num_groups = count_sam_groups(info->disp_info);
2258                         num_aliases = count_sam_aliases(info->disp_info);
2259
2260                         pdb_get_account_policy(AP_TIME_TO_LOGOUT, &account_policy_temp);
2261                         u_logout = account_policy_temp;
2262
2263                         unix_to_nt_time_abs(&nt_logout, u_logout);
2264
2265                         if (!pdb_get_seq_num(&seq_num))
2266                                 seq_num = time(NULL);
2267
2268                         /* !AS ROOT */
2269                         
2270                         unbecome_root();
2271
2272                         server_role = ROLE_DOMAIN_PDC;
2273                         if (lp_server_role() == ROLE_DOMAIN_BDC)
2274                                 server_role = ROLE_DOMAIN_BDC;
2275
2276                         init_unk_info2(&ctr->info.inf2, lp_serverstring(), lp_workgroup(), global_myname(), seq_num, 
2277                                        num_users, num_groups, num_aliases, nt_logout, server_role);
2278                         break;
2279                 case 0x03:
2280
2281                         become_root();
2282
2283                         /* AS ROOT !!! */
2284
2285                         {
2286                                 uint32 ul;
2287                                 pdb_get_account_policy(AP_TIME_TO_LOGOUT, &ul);
2288                                 u_logout = (time_t)ul;
2289                         }
2290
2291                         /* !AS ROOT */
2292                         
2293                         unbecome_root();
2294
2295                         unix_to_nt_time_abs(&nt_logout, u_logout);
2296                         
2297                         init_unk_info3(&ctr->info.inf3, nt_logout);
2298                         break;
2299                 case 0x05:
2300                         init_unk_info5(&ctr->info.inf5, global_myname());
2301                         break;
2302                 case 0x06:
2303                         init_unk_info6(&ctr->info.inf6);
2304                         break;
2305                 case 0x07:
2306                         server_role = ROLE_DOMAIN_PDC;
2307                         if (lp_server_role() == ROLE_DOMAIN_BDC)
2308                                 server_role = ROLE_DOMAIN_BDC;
2309
2310                         init_unk_info7(&ctr->info.inf7, server_role);
2311                         break;
2312                 case 0x08:
2313
2314                         become_root();
2315
2316                         /* AS ROOT !!! */
2317
2318                         if (!pdb_get_seq_num(&seq_num)) {
2319                                 seq_num = time(NULL);
2320                         }
2321
2322                         /* !AS ROOT */
2323                         
2324                         unbecome_root();
2325
2326                         init_unk_info8(&ctr->info.inf8, (uint32) seq_num);
2327                         break;
2328                 case 0x0c:
2329
2330                         become_root();
2331
2332                         /* AS ROOT !!! */
2333
2334                         pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &account_policy_temp);
2335                         u_lock_duration = account_policy_temp;
2336                         if (u_lock_duration != -1) {
2337                                 u_lock_duration *= 60;
2338                         }
2339
2340                         pdb_get_account_policy(AP_RESET_COUNT_TIME, &account_policy_temp);
2341                         u_reset_time = account_policy_temp * 60;
2342
2343                         pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_temp);
2344                         lockout = account_policy_temp;
2345
2346                         /* !AS ROOT */
2347                         
2348                         unbecome_root();
2349
2350                         unix_to_nt_time_abs(&nt_lock_duration, u_lock_duration);
2351                         unix_to_nt_time_abs(&nt_reset_time, u_reset_time);
2352         
2353                         init_unk_info12(&ctr->info.inf12, nt_lock_duration, nt_reset_time, (uint16)lockout);
2354                         break;
2355                 default:
2356                         return NT_STATUS_INVALID_INFO_CLASS;
2357                 }
2358         
2359
2360         init_samr_r_query_dom_info(r_u, q_u->switch_value, ctr, NT_STATUS_OK);
2361         
2362         DEBUG(5,("_samr_query_dom_info: %d\n", __LINE__));
2363         
2364         return r_u->status;
2365 }
2366
2367 /* W2k3 seems to use the same check for all 3 objects that can be created via
2368  * SAMR, if you try to create for example "Dialup" as an alias it says
2369  * "NT_STATUS_USER_EXISTS". This is racy, but we can't really lock the user
2370  * database. */
2371
2372 static NTSTATUS can_create(TALLOC_CTX *mem_ctx, const char *new_name)
2373 {
2374         enum SID_NAME_USE type;
2375         BOOL result;
2376
2377         DEBUG(10, ("Checking whether [%s] can be created\n", new_name));
2378
2379         become_root();
2380         /* Lookup in our local databases (only LOOKUP_NAME_ISOLATED set)
2381          * whether the name already exists */
2382         result = lookup_name(mem_ctx, new_name, LOOKUP_NAME_ISOLATED,
2383                              NULL, NULL, NULL, &type);
2384         unbecome_root();
2385
2386         if (!result) {
2387                 DEBUG(10, ("%s does not exist, can create it\n", new_name));
2388                 return NT_STATUS_OK;
2389         }
2390
2391         DEBUG(5, ("trying to create %s, exists as %s\n",
2392                   new_name, sid_type_lookup(type)));
2393
2394         if (type == SID_NAME_DOM_GRP) {
2395                 return NT_STATUS_GROUP_EXISTS;
2396         }
2397         if (type == SID_NAME_ALIAS) {
2398                 return NT_STATUS_ALIAS_EXISTS;
2399         }
2400
2401         /* Yes, the default is NT_STATUS_USER_EXISTS */
2402         return NT_STATUS_USER_EXISTS;
2403 }
2404
2405 /*******************************************************************
2406  _samr_create_user
2407  Create an account, can be either a normal user or a machine.
2408  This funcion will need to be updated for bdc/domain trusts.
2409  ********************************************************************/
2410
2411 NTSTATUS _samr_create_user(pipes_struct *p, SAMR_Q_CREATE_USER *q_u,
2412                            SAMR_R_CREATE_USER *r_u)
2413 {
2414         char *account;
2415         DOM_SID sid;
2416         POLICY_HND dom_pol = q_u->domain_pol;
2417         uint16 acb_info = q_u->acb_info;
2418         POLICY_HND *user_pol = &r_u->user_pol;
2419         struct samr_info *info = NULL;
2420         NTSTATUS nt_status;
2421         uint32 acc_granted;
2422         SEC_DESC *psd;
2423         size_t    sd_size;
2424         /* check this, when giving away 'add computer to domain' privs */
2425         uint32    des_access = GENERIC_RIGHTS_USER_ALL_ACCESS;
2426         BOOL can_add_account = False;
2427         SE_PRIV se_rights;
2428         DISP_INFO *disp_info = NULL;
2429
2430         /* Get the domain SID stored in the domain policy */
2431         if (!get_lsa_policy_samr_sid(p, &dom_pol, &sid, &acc_granted,
2432                                      &disp_info))
2433                 return NT_STATUS_INVALID_HANDLE;
2434
2435         nt_status = access_check_samr_function(acc_granted,
2436                                                SA_RIGHT_DOMAIN_CREATE_USER,
2437                                                "_samr_create_user");
2438         if (!NT_STATUS_IS_OK(nt_status)) {
2439                 return nt_status;
2440         }
2441
2442         if (!(acb_info == ACB_NORMAL || acb_info == ACB_DOMTRUST ||
2443               acb_info == ACB_WSTRUST || acb_info == ACB_SVRTRUST)) { 
2444                 /* Match Win2k, and return NT_STATUS_INVALID_PARAMETER if 
2445                    this parameter is not an account type */
2446                 return NT_STATUS_INVALID_PARAMETER;
2447         }
2448
2449         account = rpcstr_pull_unistr2_talloc(p->mem_ctx, &q_u->uni_name);
2450         if (account == NULL) {
2451                 return NT_STATUS_NO_MEMORY;
2452         }
2453
2454         nt_status = can_create(p->mem_ctx, account);
2455         if (!NT_STATUS_IS_OK(nt_status)) {
2456                 return nt_status;
2457         }
2458
2459         /* determine which user right we need to check based on the acb_info */
2460         
2461         if ( acb_info & ACB_WSTRUST )
2462         {
2463                 se_priv_copy( &se_rights, &se_machine_account );
2464                 can_add_account = user_has_privileges(
2465                         p->pipe_user.nt_user_token, &se_rights );
2466         } 
2467         /* usrmgr.exe (and net rpc trustdom grant) creates a normal user 
2468            account for domain trusts and changes the ACB flags later */
2469         else if ( acb_info & ACB_NORMAL &&
2470                   (account[strlen(account)-1] != '$') )
2471         {
2472                 se_priv_copy( &se_rights, &se_add_users );
2473                 can_add_account = user_has_privileges(
2474                         p->pipe_user.nt_user_token, &se_rights );
2475         } 
2476         else    /* implicit assumption of a BDC or domain trust account here
2477                  * (we already check the flags earlier) */
2478         {
2479                 if ( lp_enable_privileges() ) {
2480                         /* only Domain Admins can add a BDC or domain trust */
2481                         se_priv_copy( &se_rights, &se_priv_none );
2482                         can_add_account = nt_token_check_domain_rid(
2483                                 p->pipe_user.nt_user_token,
2484                                 DOMAIN_GROUP_RID_ADMINS );
2485                 }
2486         }
2487                 
2488         DEBUG(5, ("_samr_create_user: %s can add this account : %s\n",
2489                 p->pipe_user_name, can_add_account ? "True":"False" ));
2490                 
2491         /********** BEGIN Admin BLOCK **********/
2492
2493         if ( can_add_account )
2494                 become_root();
2495
2496         nt_status = pdb_create_user(p->mem_ctx, account, acb_info,
2497                                     &r_u->user_rid);
2498
2499         if ( can_add_account )
2500                 unbecome_root();
2501
2502         /********** END Admin BLOCK **********/
2503         
2504         /* now check for failure */
2505         
2506         if ( !NT_STATUS_IS_OK(nt_status) )
2507                 return nt_status;
2508                         
2509         /* Get the user's SID */
2510
2511         sid_compose(&sid, get_global_sam_sid(), r_u->user_rid);
2512         
2513         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping,
2514                             &sid, SAMR_USR_RIGHTS_WRITE_PW);
2515         se_map_generic(&des_access, &usr_generic_mapping);
2516         
2517         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2518                 &se_rights, GENERIC_RIGHTS_USER_WRITE, des_access, 
2519                 &acc_granted, "_samr_create_user");
2520                 
2521         if ( !NT_STATUS_IS_OK(nt_status) ) {
2522                 return nt_status;
2523         }
2524
2525         /* associate the user's SID with the new handle. */
2526         if ((info = get_samr_info_by_sid(&sid)) == NULL) {
2527                 return NT_STATUS_NO_MEMORY;
2528         }
2529
2530         ZERO_STRUCTP(info);
2531         info->sid = sid;
2532         info->acc_granted = acc_granted;
2533
2534         /* get a (unique) handle.  open a policy on it. */
2535         if (!create_policy_hnd(p, user_pol, free_samr_info, (void *)info)) {
2536                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2537         }
2538
2539         /* After a "set" ensure we have no cached display info. */
2540         force_flush_samr_cache(info->disp_info);
2541
2542         r_u->access_granted = acc_granted;
2543
2544         return NT_STATUS_OK;
2545 }
2546
2547 /*******************************************************************
2548  samr_reply_connect_anon
2549  ********************************************************************/
2550
2551 NTSTATUS _samr_connect_anon(pipes_struct *p, SAMR_Q_CONNECT_ANON *q_u, SAMR_R_CONNECT_ANON *r_u)
2552 {
2553         struct samr_info *info = NULL;
2554         uint32    des_access = q_u->access_mask;
2555
2556         /* Access check */
2557
2558         if (!pipe_access_check(p)) {
2559                 DEBUG(3, ("access denied to samr_connect_anon\n"));
2560                 r_u->status = NT_STATUS_ACCESS_DENIED;
2561                 return r_u->status;
2562         }
2563
2564         /* set up the SAMR connect_anon response */
2565
2566         r_u->status = NT_STATUS_OK;
2567
2568         /* associate the user's SID with the new handle. */
2569         if ((info = get_samr_info_by_sid(NULL)) == NULL)
2570                 return NT_STATUS_NO_MEMORY;
2571
2572         /* don't give away the farm but this is probably ok.  The SA_RIGHT_SAM_ENUM_DOMAINS
2573            was observed from a win98 client trying to enumerate users (when configured  
2574            user level access control on shares)   --jerry */
2575            
2576         if (des_access == MAXIMUM_ALLOWED_ACCESS) {
2577                 /* Map to max possible knowing we're filtered below. */
2578                 des_access = GENERIC_ALL_ACCESS;
2579         }
2580
2581         se_map_generic( &des_access, &sam_generic_mapping );
2582         info->acc_granted = des_access & (SA_RIGHT_SAM_ENUM_DOMAINS|SA_RIGHT_SAM_OPEN_DOMAIN);
2583         
2584         info->status = q_u->unknown_0;
2585
2586         /* get a (unique) handle.  open a policy on it. */
2587         if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
2588                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2589
2590         return r_u->status;
2591 }
2592
2593 /*******************************************************************
2594  samr_reply_connect
2595  ********************************************************************/
2596
2597 NTSTATUS _samr_connect(pipes_struct *p, SAMR_Q_CONNECT *q_u, SAMR_R_CONNECT *r_u)
2598 {
2599         struct samr_info *info = NULL;
2600         SEC_DESC *psd = NULL;
2601         uint32    acc_granted;
2602         uint32    des_access = q_u->access_mask;
2603         NTSTATUS  nt_status;
2604         size_t    sd_size;
2605
2606
2607         DEBUG(5,("_samr_connect: %d\n", __LINE__));
2608
2609         /* Access check */
2610
2611         if (!pipe_access_check(p)) {
2612                 DEBUG(3, ("access denied to samr_connect\n"));
2613                 r_u->status = NT_STATUS_ACCESS_DENIED;
2614                 return r_u->status;
2615         }
2616
2617         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
2618         se_map_generic(&des_access, &sam_generic_mapping);
2619         
2620         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2621                 NULL, 0, des_access, &acc_granted, "_samr_connect");
2622         
2623         if ( !NT_STATUS_IS_OK(nt_status) ) 
2624                 return nt_status;
2625
2626         r_u->status = NT_STATUS_OK;
2627
2628         /* associate the user's SID and access granted with the new handle. */
2629         if ((info = get_samr_info_by_sid(NULL)) == NULL)
2630                 return NT_STATUS_NO_MEMORY;
2631
2632         info->acc_granted = acc_granted;
2633         info->status = q_u->access_mask;
2634
2635         /* get a (unique) handle.  open a policy on it. */
2636         if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
2637                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2638
2639         DEBUG(5,("_samr_connect: %d\n", __LINE__));
2640
2641         return r_u->status;
2642 }
2643
2644 /*******************************************************************
2645  samr_connect4
2646  ********************************************************************/
2647
2648 NTSTATUS _samr_connect4(pipes_struct *p, SAMR_Q_CONNECT4 *q_u, SAMR_R_CONNECT4 *r_u)
2649 {
2650         struct samr_info *info = NULL;
2651         SEC_DESC *psd = NULL;
2652         uint32    acc_granted;
2653         uint32    des_access = q_u->access_mask;
2654         NTSTATUS  nt_status;
2655         size_t    sd_size;
2656
2657
2658         DEBUG(5,("_samr_connect4: %d\n", __LINE__));
2659
2660         /* Access check */
2661
2662         if (!pipe_access_check(p)) {
2663                 DEBUG(3, ("access denied to samr_connect4\n"));
2664                 r_u->status = NT_STATUS_ACCESS_DENIED;
2665                 return r_u->status;
2666         }
2667
2668         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
2669         se_map_generic(&des_access, &sam_generic_mapping);
2670         
2671         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2672                 NULL, 0, des_access, &acc_granted, "_samr_connect4");
2673         
2674         if ( !NT_STATUS_IS_OK(nt_status) ) 
2675                 return nt_status;
2676
2677         r_u->status = NT_STATUS_OK;
2678
2679         /* associate the user's SID and access granted with the new handle. */
2680         if ((info = get_samr_info_by_sid(NULL)) == NULL)
2681                 return NT_STATUS_NO_MEMORY;
2682
2683         info->acc_granted = acc_granted;
2684         info->status = q_u->access_mask;
2685
2686         /* get a (unique) handle.  open a policy on it. */
2687         if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info))
2688                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2689
2690         DEBUG(5,("_samr_connect: %d\n", __LINE__));
2691
2692         return r_u->status;
2693 }
2694
2695 /*******************************************************************
2696  samr_connect5
2697  ********************************************************************/
2698
2699 NTSTATUS _samr_connect5(pipes_struct *p, SAMR_Q_CONNECT5 *q_u, SAMR_R_CONNECT5 *r_u)
2700 {
2701         struct samr_info *info = NULL;
2702         SEC_DESC *psd = NULL;
2703         uint32    acc_granted;
2704         uint32    des_access = q_u->access_mask;
2705         NTSTATUS  nt_status;
2706         POLICY_HND pol;
2707         size_t    sd_size;
2708
2709
2710         DEBUG(5,("_samr_connect5: %d\n", __LINE__));
2711
2712         ZERO_STRUCTP(r_u);
2713
2714         /* Access check */
2715
2716         if (!pipe_access_check(p)) {
2717                 DEBUG(3, ("access denied to samr_connect5\n"));
2718                 r_u->status = NT_STATUS_ACCESS_DENIED;
2719                 return r_u->status;
2720         }
2721
2722         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0);
2723         se_map_generic(&des_access, &sam_generic_mapping);
2724         
2725         nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2726                 NULL, 0, des_access, &acc_granted, "_samr_connect5");
2727         
2728         if ( !NT_STATUS_IS_OK(nt_status) ) 
2729                 return nt_status;
2730
2731         /* associate the user's SID and access granted with the new handle. */
2732         if ((info = get_samr_info_by_sid(NULL)) == NULL)
2733                 return NT_STATUS_NO_MEMORY;
2734
2735         info->acc_granted = acc_granted;
2736         info->status = q_u->access_mask;
2737
2738         /* get a (unique) handle.  open a policy on it. */
2739         if (!create_policy_hnd(p, &pol, free_samr_info, (void *)info))
2740                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2741
2742         DEBUG(5,("_samr_connect: %d\n", __LINE__));
2743
2744         init_samr_r_connect5(r_u, &pol, NT_STATUS_OK);
2745
2746         return r_u->status;
2747 }
2748
2749 /**********************************************************************
2750  api_samr_lookup_domain
2751  **********************************************************************/
2752
2753 NTSTATUS _samr_lookup_domain(pipes_struct *p, SAMR_Q_LOOKUP_DOMAIN *q_u, SAMR_R_LOOKUP_DOMAIN *r_u)
2754 {
2755         struct samr_info *info;
2756         fstring domain_name;
2757         DOM_SID sid;
2758
2759         r_u->status = NT_STATUS_OK;
2760
2761         if (!find_policy_by_hnd(p, &q_u->connect_pol, (void**)(void *)&info))
2762                 return NT_STATUS_INVALID_HANDLE;
2763
2764         /* win9x user manager likes to use SA_RIGHT_SAM_ENUM_DOMAINS here.  
2765            Reverted that change so we will work with RAS servers again */
2766
2767         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, 
2768                 SA_RIGHT_SAM_OPEN_DOMAIN, "_samr_lookup_domain"))) 
2769         {
2770                 return r_u->status;
2771         }
2772
2773         rpcstr_pull(domain_name, q_u->uni_domain.buffer, sizeof(domain_name), q_u->uni_domain.uni_str_len*2, 0);
2774
2775         ZERO_STRUCT(sid);
2776
2777         if (strequal(domain_name, builtin_domain_name())) {
2778                 sid_copy(&sid, &global_sid_Builtin);
2779         } else {
2780                 if (!secrets_fetch_domain_sid(domain_name, &sid)) {
2781                         r_u->status = NT_STATUS_NO_SUCH_DOMAIN;
2782                 }
2783         }
2784
2785         DEBUG(2,("Returning domain sid for domain %s -> %s\n", domain_name, sid_string_static(&sid)));
2786
2787         init_samr_r_lookup_domain(r_u, &sid, r_u->status);
2788
2789         return r_u->status;
2790 }
2791
2792 /******************************************************************
2793 makes a SAMR_R_ENUM_DOMAINS structure.
2794 ********************************************************************/
2795
2796 static BOOL make_enum_domains(TALLOC_CTX *ctx, SAM_ENTRY **pp_sam,
2797                         UNISTR2 **pp_uni_name, uint32 num_sam_entries, fstring doms[])
2798 {
2799         uint32 i;
2800         SAM_ENTRY *sam;
2801         UNISTR2 *uni_name;
2802
2803         DEBUG(5, ("make_enum_domains\n"));
2804
2805         *pp_sam = NULL;
2806         *pp_uni_name = NULL;
2807
2808         if (num_sam_entries == 0)
2809                 return True;
2810
2811         sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_sam_entries);
2812         uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_sam_entries);
2813
2814         if (sam == NULL || uni_name == NULL)
2815                 return False;
2816
2817         for (i = 0; i < num_sam_entries; i++) {
2818                 init_unistr2(&uni_name[i], doms[i], UNI_FLAGS_NONE);
2819                 init_sam_entry(&sam[i], &uni_name[i], 0);
2820         }
2821
2822         *pp_sam = sam;
2823         *pp_uni_name = uni_name;
2824
2825         return True;
2826 }
2827
2828 /**********************************************************************
2829  api_samr_enum_domains
2830  **********************************************************************/
2831
2832 NTSTATUS _samr_enum_domains(pipes_struct *p, SAMR_Q_ENUM_DOMAINS *q_u, SAMR_R_ENUM_DOMAINS *r_u)
2833 {
2834         struct samr_info *info;
2835         uint32 num_entries = 2;
2836         fstring dom[2];
2837         const char *name;
2838
2839         r_u->status = NT_STATUS_OK;
2840         
2841         if (!find_policy_by_hnd(p, &q_u->pol, (void**)(void *)&info))
2842                 return NT_STATUS_INVALID_HANDLE;
2843         
2844         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, SA_RIGHT_SAM_ENUM_DOMAINS, "_samr_enum_domains"))) {
2845                 return r_u->status;
2846         }
2847
2848         name = get_global_sam_name();
2849
2850         fstrcpy(dom[0],name);
2851         strupper_m(dom[0]);
2852         fstrcpy(dom[1],"Builtin");
2853
2854         if (!make_enum_domains(p->mem_ctx, &r_u->sam, &r_u->uni_dom_name, num_entries, dom))
2855                 return NT_STATUS_NO_MEMORY;
2856
2857         init_samr_r_enum_domains(r_u, q_u->start_idx + num_entries, num_entries);
2858
2859         return r_u->status;
2860 }
2861
2862 /*******************************************************************
2863  api_samr_open_alias
2864  ********************************************************************/
2865
2866 NTSTATUS _samr_open_alias(pipes_struct *p, SAMR_Q_OPEN_ALIAS *q_u, SAMR_R_OPEN_ALIAS *r_u)
2867 {
2868         DOM_SID sid;
2869         POLICY_HND domain_pol = q_u->dom_pol;
2870         uint32 alias_rid = q_u->rid_alias;
2871         POLICY_HND *alias_pol = &r_u->pol;
2872         struct    samr_info *info = NULL;
2873         SEC_DESC *psd = NULL;
2874         uint32    acc_granted;
2875         uint32    des_access = q_u->access_mask;
2876         size_t    sd_size;
2877         NTSTATUS  status;
2878         SE_PRIV se_rights;
2879
2880         r_u->status = NT_STATUS_OK;
2881
2882         /* find the domain policy and get the SID / access bits stored in the domain policy */
2883         
2884         if ( !get_lsa_policy_samr_sid(p, &domain_pol, &sid, &acc_granted, NULL) )
2885                 return NT_STATUS_INVALID_HANDLE;
2886         
2887         status = access_check_samr_function(acc_granted, 
2888                 SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_alias");
2889                 
2890         if ( !NT_STATUS_IS_OK(status) ) 
2891                 return status;
2892
2893         /* append the alias' RID to it */
2894         
2895         if (!sid_append_rid(&sid, alias_rid))
2896                 return NT_STATUS_NO_SUCH_ALIAS;
2897                 
2898         /*check if access can be granted as requested by client. */
2899         
2900         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &ali_generic_mapping, NULL, 0);
2901         se_map_generic(&des_access,&ali_generic_mapping);
2902         
2903         se_priv_copy( &se_rights, &se_add_users );
2904         
2905         
2906         status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
2907                 &se_rights, GENERIC_RIGHTS_ALIAS_WRITE, des_access, 
2908                 &acc_granted, "_samr_open_alias");
2909                 
2910         if ( !NT_STATUS_IS_OK(status) )
2911                 return status;
2912
2913         {
2914                 /* Check we actually have the requested alias */
2915                 enum SID_NAME_USE type;
2916                 BOOL result;
2917
2918                 become_root();
2919                 result = lookup_sid(NULL, &sid, NULL, NULL, &type);
2920                 unbecome_root();
2921
2922                 if (!result || (type != SID_NAME_ALIAS)) {
2923                         return NT_STATUS_NO_SUCH_ALIAS;
2924                 }
2925         }
2926
2927         /* associate the alias SID with the new handle. */
2928         if ((info = get_samr_info_by_sid(&sid)) == NULL)
2929                 return NT_STATUS_NO_MEMORY;
2930                 
2931         info->acc_granted = acc_granted;
2932
2933         /* get a (unique) handle.  open a policy on it. */
2934         if (!create_policy_hnd(p, alias_pol, free_samr_info, (void *)info))
2935                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2936
2937         return r_u->status;
2938 }
2939
2940 /*******************************************************************
2941  set_user_info_7
2942  ********************************************************************/
2943 static NTSTATUS set_user_info_7(TALLOC_CTX *mem_ctx,
2944                                 const SAM_USER_INFO_7 *id7, struct samu *pwd)
2945 {
2946         fstring new_name;
2947         NTSTATUS rc;
2948
2949         if (id7 == NULL) {
2950                 DEBUG(5, ("set_user_info_7: NULL id7\n"));
2951                 TALLOC_FREE(pwd);
2952                 return NT_STATUS_ACCESS_DENIED;
2953         }
2954
2955         if(!rpcstr_pull(new_name, id7->uni_name.buffer, sizeof(new_name), id7->uni_name.uni_str_len*2, 0)) {
2956                 DEBUG(5, ("set_user_info_7: failed to get new username\n"));
2957                 TALLOC_FREE(pwd);
2958                 return NT_STATUS_ACCESS_DENIED;
2959         }
2960
2961         /* check to see if the new username already exists.  Note: we can't
2962            reliably lock all backends, so there is potentially the 
2963            possibility that a user can be created in between this check and
2964            the rename.  The rename should fail, but may not get the
2965            exact same failure status code.  I think this is small enough
2966            of a window for this type of operation and the results are
2967            simply that the rename fails with a slightly different status
2968            code (like UNSUCCESSFUL instead of ALREADY_EXISTS). */
2969
2970         rc = can_create(mem_ctx, new_name);
2971         if (!NT_STATUS_IS_OK(rc)) {
2972                 return rc;
2973         }
2974
2975         rc = pdb_rename_sam_account(pwd, new_name);
2976
2977         TALLOC_FREE(pwd);
2978         return rc;
2979 }
2980
2981 /*******************************************************************
2982  set_user_info_16
2983  ********************************************************************/
2984
2985 static BOOL set_user_info_16(const SAM_USER_INFO_16 *id16, struct samu *pwd)
2986 {
2987         if (id16 == NULL) {
2988                 DEBUG(5, ("set_user_info_16: NULL id16\n"));
2989                 TALLOC_FREE(pwd);
2990                 return False;
2991         }
2992         
2993         /* FIX ME: check if the value is really changed --metze */
2994         if (!pdb_set_acct_ctrl(pwd, id16->acb_info, PDB_CHANGED)) {
2995                 TALLOC_FREE(pwd);
2996                 return False;
2997         }
2998
2999         if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) {
3000                 TALLOC_FREE(pwd);
3001                 return False;
3002         }
3003
3004         TALLOC_FREE(pwd);
3005
3006         return True;
3007 }
3008
3009 /*******************************************************************
3010  set_user_info_18
3011  ********************************************************************/
3012
3013 static BOOL set_user_info_18(SAM_USER_INFO_18 *id18, struct samu *pwd)
3014 {
3015
3016         if (id18 == NULL) {
3017                 DEBUG(2, ("set_user_info_18: id18 is NULL\n"));
3018                 TALLOC_FREE(pwd);
3019                 return False;
3020         }
3021  
3022         if (!pdb_set_lanman_passwd (pwd, id18->lm_pwd, PDB_CHANGED)) {
3023                 TALLOC_FREE(pwd);
3024                 return False;
3025         }
3026         if (!pdb_set_nt_passwd     (pwd, id18->nt_pwd, PDB_CHANGED)) {
3027                 TALLOC_FREE(pwd);
3028                 return False;
3029         }
3030         if (!pdb_set_pass_changed_now (pwd)) {
3031                 TALLOC_FREE(pwd);
3032                 return False; 
3033         }
3034  
3035         if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) {
3036                 TALLOC_FREE(pwd);
3037                 return False;
3038         }
3039
3040         TALLOC_FREE(pwd);
3041         return True;
3042 }
3043
3044 /*******************************************************************
3045  set_user_info_20
3046  ********************************************************************/
3047
3048 static BOOL set_user_info_20(SAM_USER_INFO_20 *id20, struct samu *pwd)
3049 {
3050         if (id20 == NULL) {
3051                 DEBUG(5, ("set_user_info_20: NULL id20\n"));
3052                 return False;
3053         }
3054  
3055         copy_id20_to_sam_passwd(pwd, id20);
3056
3057         /* write the change out */
3058         if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) {
3059                 TALLOC_FREE(pwd);
3060                 return False;
3061         }
3062
3063         TALLOC_FREE(pwd);
3064
3065         return True;
3066 }
3067 /*******************************************************************
3068  set_user_info_21
3069  ********************************************************************/
3070
3071 static NTSTATUS set_user_info_21(TALLOC_CTX *mem_ctx, SAM_USER_INFO_21 *id21,
3072                                  struct samu *pwd)
3073 {
3074         NTSTATUS status;
3075
3076         if (id21 == NULL) {
3077                 DEBUG(5, ("set_user_info_21: NULL id21\n"));
3078                 return NT_STATUS_INVALID_PARAMETER;
3079         }
3080  
3081         copy_id21_to_sam_passwd(pwd, id21);
3082  
3083         /*
3084          * The funny part about the previous two calls is
3085          * that pwd still has the password hashes from the
3086          * passdb entry.  These have not been updated from
3087          * id21.  I don't know if they need to be set.    --jerry
3088          */
3089  
3090         if (IS_SAM_CHANGED(pwd, PDB_GROUPSID) &&
3091             !NT_STATUS_IS_OK(status = pdb_set_unix_primary_group(mem_ctx,
3092                                                                  pwd))) {
3093                 return status;
3094         }
3095
3096         /* write the change out */
3097         if(!NT_STATUS_IS_OK(status = pdb_update_sam_account(pwd))) {
3098                 TALLOC_FREE(pwd);
3099                 return status;
3100         }
3101
3102         TALLOC_FREE(pwd);
3103
3104         return NT_STATUS_OK;
3105 }
3106
3107 /*******************************************************************
3108  set_user_info_23
3109  ********************************************************************/
3110
3111 static NTSTATUS set_user_info_23(TALLOC_CTX *mem_ctx, SAM_USER_INFO_23 *id23,
3112                                  struct samu *pwd)
3113 {
3114         pstring plaintext_buf;
3115         uint32 len;
3116         uint16 acct_ctrl;
3117         NTSTATUS status;
3118  
3119         if (id23 == NULL) {
3120                 DEBUG(5, ("set_user_info_23: NULL id23\n"));
3121                 return NT_STATUS_INVALID_PARAMETER;
3122         }
3123  
3124         DEBUG(5, ("Attempting administrator password change (level 23) for user %s\n",
3125                   pdb_get_username(pwd)));
3126
3127         acct_ctrl = pdb_get_acct_ctrl(pwd);
3128
3129         if (!decode_pw_buffer(id23->pass, plaintext_buf, 256, &len, STR_UNICODE)) {
3130                 TALLOC_FREE(pwd);
3131                 return NT_STATUS_INVALID_PARAMETER;
3132         }
3133   
3134         if (!pdb_set_plaintext_passwd (pwd, plaintext_buf)) {
3135                 TALLOC_FREE(pwd);
3136                 return NT_STATUS_ACCESS_DENIED;
3137         }
3138  
3139         copy_id23_to_sam_passwd(pwd, id23);
3140  
3141         /* if it's a trust account, don't update /etc/passwd */
3142         if (    ( (acct_ctrl &  ACB_DOMTRUST) == ACB_DOMTRUST ) ||
3143                 ( (acct_ctrl &  ACB_WSTRUST) ==  ACB_WSTRUST) ||
3144                 ( (acct_ctrl &  ACB_SVRTRUST) ==  ACB_SVRTRUST) ) {
3145                 DEBUG(5, ("Changing trust account or non-unix-user password, not updating /etc/passwd\n"));
3146         } else  {
3147                 /* update the UNIX password */
3148                 if (lp_unix_password_sync() ) {
3149                         struct passwd *passwd = Get_Pwnam(pdb_get_username(pwd));
3150                         if (!passwd) {
3151                                 DEBUG(1, ("chgpasswd: Username does not exist in system !?!\n"));
3152                         }
3153                         
3154                         if(!chgpasswd(pdb_get_username(pwd), passwd, "", plaintext_buf, True)) {
3155                                 TALLOC_FREE(pwd);
3156                                 return NT_STATUS_ACCESS_DENIED;
3157                         }
3158                 }
3159         }
3160  
3161         ZERO_STRUCT(plaintext_buf);
3162  
3163         if (IS_SAM_CHANGED(pwd, PDB_GROUPSID) &&
3164             (!NT_STATUS_IS_OK(status =  pdb_set_unix_primary_group(mem_ctx,
3165                                                                    pwd)))) {
3166                 TALLOC_FREE(pwd);
3167                 return status;
3168         }
3169
3170         if(!NT_STATUS_IS_OK(status = pdb_update_sam_account(pwd))) {
3171                 TALLOC_FREE(pwd);
3172                 return status;
3173         }
3174  
3175         TALLOC_FREE(pwd);
3176
3177         return NT_STATUS_OK;
3178 }
3179
3180 /*******************************************************************
3181  set_user_info_pw
3182  ********************************************************************/
3183
3184 static BOOL set_user_info_pw(uint8 *pass, struct samu *pwd)
3185 {
3186         uint32 len;
3187         pstring plaintext_buf;
3188         uint16 acct_ctrl;
3189  
3190         DEBUG(5, ("Attempting administrator password change for user %s\n",
3191                   pdb_get_username(pwd)));
3192
3193         acct_ctrl = pdb_get_acct_ctrl(pwd);
3194
3195         ZERO_STRUCT(plaintext_buf);
3196  
3197         if (!decode_pw_buffer(pass, plaintext_buf, 256, &len, STR_UNICODE)) {
3198                 TALLOC_FREE(pwd);
3199                 return False;
3200         }
3201
3202         if (!pdb_set_plaintext_passwd (pwd, plaintext_buf)) {
3203                 TALLOC_FREE(pwd);
3204                 return False;
3205         }
3206  
3207         /* if it's a trust account, don't update /etc/passwd */
3208         if ( ( (acct_ctrl &  ACB_DOMTRUST) == ACB_DOMTRUST ) ||
3209                 ( (acct_ctrl &  ACB_WSTRUST) ==  ACB_WSTRUST) ||
3210                 ( (acct_ctrl &  ACB_SVRTRUST) ==  ACB_SVRTRUST) ) {
3211                 DEBUG(5, ("Changing trust account or non-unix-user password, not updating /etc/passwd\n"));
3212         } else {
3213                 /* update the UNIX password */
3214                 if (lp_unix_password_sync()) {
3215                         struct passwd *passwd = Get_Pwnam(pdb_get_username(pwd));
3216                         if (!passwd) {
3217                                 DEBUG(1, ("chgpasswd: Username does not exist in system !?!\n"));
3218                         }
3219                         
3220                         if(!chgpasswd(pdb_get_username(pwd), passwd, "", plaintext_buf, True)) {
3221                                 TALLOC_FREE(pwd);
3222                                 return False;
3223                         }
3224                 }
3225         }
3226  
3227         ZERO_STRUCT(plaintext_buf);
3228  
3229         DEBUG(5,("set_user_info_pw: pdb_update_pwd()\n"));
3230  
3231         /* update the SAMBA password */
3232         if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) {
3233                 TALLOC_FREE(pwd);
3234                 return False;
3235         }
3236
3237         TALLOC_FREE(pwd);
3238
3239         return True;
3240 }
3241
3242 /*******************************************************************
3243  samr_reply_set_userinfo
3244  ********************************************************************/
3245
3246 NTSTATUS _samr_set_userinfo(pipes_struct *p, SAMR_Q_SET_USERINFO *q_u, SAMR_R_SET_USERINFO *r_u)
3247 {
3248         struct samu *pwd = NULL;
3249         DOM_SID sid;
3250         POLICY_HND *pol = &q_u->pol;
3251         uint16 switch_value = q_u->switch_value;
3252         SAM_USERINFO_CTR *ctr = q_u->ctr;
3253         uint32 acc_granted;
3254         uint32 acc_required;
3255         BOOL ret;
3256         BOOL has_enough_rights = False;
3257         uint32 acb_info;
3258         DISP_INFO *disp_info = NULL;
3259
3260         DEBUG(5, ("_samr_set_userinfo: %d\n", __LINE__));
3261
3262         r_u->status = NT_STATUS_OK;
3263
3264         /* find the policy handle.  open a policy on it. */
3265         if (!get_lsa_policy_samr_sid(p, pol, &sid, &acc_granted, &disp_info))
3266                 return NT_STATUS_INVALID_HANDLE;
3267
3268         /* observed when joining an XP client to a Samba domain */
3269         
3270         acc_required = SA_RIGHT_USER_SET_PASSWORD | SA_RIGHT_USER_SET_ATTRIBUTES | SA_RIGHT_USER_ACCT_FLAGS_EXPIRY;     
3271
3272         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, acc_required, "_samr_set_userinfo"))) {
3273                 return r_u->status;
3274         }
3275
3276         DEBUG(5, ("_samr_set_userinfo: sid:%s, level:%d\n", sid_string_static(&sid), switch_value));
3277
3278         if (ctr == NULL) {
3279                 DEBUG(5, ("_samr_set_userinfo: NULL info level\n"));
3280                 return NT_STATUS_INVALID_INFO_CLASS;
3281         }
3282         
3283         if ( !(pwd = samu_new( NULL )) ) {
3284                 return NT_STATUS_NO_MEMORY;
3285         }
3286         
3287         become_root();
3288         ret = pdb_getsampwsid(pwd, &sid);
3289         unbecome_root();
3290         
3291         if ( !ret ) {
3292                 TALLOC_FREE(pwd);
3293                 return NT_STATUS_NO_SUCH_USER;
3294         }
3295         
3296         /* deal with machine password changes differently from userinfo changes */
3297         /* check to see if we have the sufficient rights */
3298         
3299         acb_info = pdb_get_acct_ctrl(pwd);
3300         if ( acb_info & ACB_WSTRUST ) 
3301                 has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_machine_account);
3302         else if ( acb_info & ACB_NORMAL )
3303                 has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
3304         else if ( acb_info & (ACB_SVRTRUST|ACB_DOMTRUST) ) {
3305                 if ( lp_enable_privileges() )
3306                         has_enough_rights = nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS );
3307         }
3308         
3309         DEBUG(5, ("_samr_set_userinfo: %s does%s possess sufficient rights\n",
3310                 p->pipe_user_name, has_enough_rights ? "" : " not"));
3311
3312         /* ================ BEGIN SeMachineAccountPrivilege BLOCK ================ */
3313         
3314         if ( has_enough_rights )                                
3315                 become_root(); 
3316         
3317         /* ok!  user info levels (lots: see MSDEV help), off we go... */
3318
3319         switch (switch_value) {
3320                 case 18:
3321                         if (!set_user_info_18(ctr->info.id18, pwd))
3322                                 r_u->status = NT_STATUS_ACCESS_DENIED;
3323                         break;
3324
3325                 case 24:
3326                         if (!p->session_key.length) {
3327                                 r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
3328                         }
3329                         SamOEMhashBlob(ctr->info.id24->pass, 516, &p->session_key);
3330
3331                         dump_data(100, (char *)ctr->info.id24->pass, 516);
3332
3333                         if (!set_user_info_pw(ctr->info.id24->pass, pwd))
3334                                 r_u->status = NT_STATUS_ACCESS_DENIED;
3335                         break;
3336
3337                 case 25:
3338                         if (!p->session_key.length) {
3339                                 r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
3340                         }
3341                         encode_or_decode_arc4_passwd_buffer(ctr->info.id25->pass, &p->session_key);
3342
3343                         dump_data(100, (char *)ctr->info.id25->pass, 532);
3344
3345                         if (!set_user_info_pw(ctr->info.id25->pass, pwd))
3346                                 r_u->status = NT_STATUS_ACCESS_DENIED;
3347                         break;
3348
3349                 case 26:
3350                         if (!p->session_key.length) {
3351                                 r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
3352                         }
3353                         encode_or_decode_arc4_passwd_buffer(ctr->info.id26->pass, &p->session_key);
3354
3355                         dump_data(100, (char *)ctr->info.id26->pass, 516);
3356
3357                         if (!set_user_info_pw(ctr->info.id26->pass, pwd))
3358                                 r_u->status = NT_STATUS_ACCESS_DENIED;
3359                         break;
3360
3361                 case 23:
3362                         if (!p->session_key.length) {
3363                                 r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
3364                         }
3365                         SamOEMhashBlob(ctr->info.id23->pass, 516, &p->session_key);
3366
3367                         dump_data(100, (char *)ctr->info.id23->pass, 516);
3368
3369                         r_u->status = set_user_info_23(p->mem_ctx,
3370                                                        ctr->info.id23, pwd);
3371                         break;
3372
3373                 default:
3374                         r_u->status = NT_STATUS_INVALID_INFO_CLASS;
3375         }
3376
3377         
3378         if ( has_enough_rights )                                
3379                 unbecome_root();
3380                 
3381         /* ================ END SeMachineAccountPrivilege BLOCK ================ */
3382
3383         if (NT_STATUS_IS_OK(r_u->status)) {
3384                 force_flush_samr_cache(disp_info);
3385         }
3386
3387         return r_u->status;
3388 }
3389
3390 /*******************************************************************
3391  samr_reply_set_userinfo2
3392  ********************************************************************/
3393
3394 NTSTATUS _samr_set_userinfo2(pipes_struct *p, SAMR_Q_SET_USERINFO2 *q_u, SAMR_R_SET_USERINFO2 *r_u)
3395 {
3396         struct samu *pwd = NULL;
3397         DOM_SID sid;
3398         SAM_USERINFO_CTR *ctr = q_u->ctr;
3399         POLICY_HND *pol = &q_u->pol;
3400         uint16 switch_value = q_u->switch_value;
3401         uint32 acc_granted;
3402         uint32 acc_required;
3403         BOOL ret;
3404         BOOL has_enough_rights = False;
3405         uint32 acb_info;
3406         DISP_INFO *disp_info = NULL;
3407
3408         DEBUG(5, ("samr_reply_set_userinfo2: %d\n", __LINE__));
3409
3410         r_u->status = NT_STATUS_OK;
3411
3412         /* find the policy handle.  open a policy on it. */
3413         if (!get_lsa_policy_samr_sid(p, pol, &sid, &acc_granted, &disp_info))
3414                 return NT_STATUS_INVALID_HANDLE;
3415
3416         /* observed when joining XP client to Samba domain */
3417                 
3418         acc_required = SA_RIGHT_USER_SET_PASSWORD | SA_RIGHT_USER_SET_ATTRIBUTES | SA_RIGHT_USER_ACCT_FLAGS_EXPIRY;
3419         
3420         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, acc_required, "_samr_set_userinfo2"))) {
3421                 return r_u->status;
3422         }
3423
3424         DEBUG(5, ("samr_reply_set_userinfo2: sid:%s\n", sid_string_static(&sid)));
3425
3426         if (ctr == NULL) {
3427                 DEBUG(5, ("samr_reply_set_userinfo2: NULL info level\n"));
3428                 return NT_STATUS_INVALID_INFO_CLASS;
3429         }
3430
3431         switch_value=ctr->switch_value;
3432
3433         if ( !(pwd = samu_new( NULL )) ) {
3434                 return NT_STATUS_NO_MEMORY;
3435         }
3436
3437         become_root();
3438         ret = pdb_getsampwsid(pwd, &sid);
3439         unbecome_root();
3440         
3441         if ( !ret ) {
3442                 TALLOC_FREE(pwd);
3443                 return NT_STATUS_NO_SUCH_USER;
3444         }
3445         
3446         acb_info = pdb_get_acct_ctrl(pwd);
3447         if ( acb_info & ACB_WSTRUST ) 
3448                 has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_machine_account);
3449         else if ( acb_info & ACB_NORMAL )
3450                 has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
3451         else if ( acb_info & (ACB_SVRTRUST|ACB_DOMTRUST) ) {
3452                 if ( lp_enable_privileges() )
3453                         has_enough_rights = nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS );
3454         }
3455         
3456         DEBUG(5, ("_samr_set_userinfo2: %s does%s possess sufficient rights\n",
3457                 p->pipe_user_name, has_enough_rights ? "" : " not"));
3458
3459         /* ================ BEGIN SeMachineAccountPrivilege BLOCK ================ */
3460         
3461         if ( has_enough_rights )                                
3462                 become_root(); 
3463         
3464         /* ok!  user info levels (lots: see MSDEV help), off we go... */
3465         
3466         switch (switch_value) {
3467                 case 7:
3468                         r_u->status = set_user_info_7(p->mem_ctx,
3469                                                       ctr->info.id7, pwd);
3470                         break;
3471                 case 16:
3472                         if (!set_user_info_16(ctr->info.id16, pwd))
3473                                 r_u->status = NT_STATUS_ACCESS_DENIED;
3474                         break;
3475                 case 18:
3476                         /* Used by AS/U JRA. */
3477                         if (!set_user_info_18(ctr->info.id18, pwd))
3478                                 r_u->status = NT_STATUS_ACCESS_DENIED;
3479                         break;
3480                 case 20:
3481                         if (!set_user_info_20(ctr->info.id20, pwd))
3482                                 r_u->status = NT_STATUS_ACCESS_DENIED;
3483                         break;
3484                 case 21:
3485                         r_u->status = set_user_info_21(p->mem_ctx,
3486                                                        ctr->info.id21, pwd);
3487                         break;
3488                 case 23:
3489                         if (!p->session_key.length) {
3490                                 r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
3491                         }
3492                         SamOEMhashBlob(ctr->info.id23->pass, 516, &p->session_key);
3493
3494                         dump_data(100, (char *)ctr->info.id23->pass, 516);
3495
3496                         r_u->status = set_user_info_23(p->mem_ctx,
3497                                                        ctr->info.id23, pwd);
3498                         break;
3499                 case 26:
3500                         if (!p->session_key.length) {
3501                                 r_u->status = NT_STATUS_NO_USER_SESSION_KEY;
3502                         }
3503                         encode_or_decode_arc4_passwd_buffer(ctr->info.id26->pass, &p->session_key);
3504
3505                         dump_data(100, (char *)ctr->info.id26->pass, 516);
3506
3507                         if (!set_user_info_pw(ctr->info.id26->pass, pwd))
3508                                 r_u->status = NT_STATUS_ACCESS_DENIED;
3509                         break;
3510                 default:
3511                         r_u->status = NT_STATUS_INVALID_INFO_CLASS;
3512         }
3513
3514         if ( has_enough_rights )                                
3515                 unbecome_root();
3516                 
3517         /* ================ END SeMachineAccountPrivilege BLOCK ================ */
3518
3519         if (NT_STATUS_IS_OK(r_u->status)) {
3520                 force_flush_samr_cache(disp_info);
3521         }
3522
3523         return r_u->status;
3524 }
3525
3526 /*********************************************************************
3527  _samr_query_aliasmem
3528 *********************************************************************/
3529
3530 NTSTATUS _samr_query_useraliases(pipes_struct *p, SAMR_Q_QUERY_USERALIASES *q_u, SAMR_R_QUERY_USERALIASES *r_u)
3531 {
3532         size_t num_alias_rids;
3533         uint32 *alias_rids;
3534         struct samr_info *info = NULL;
3535         size_t i;
3536                 
3537         NTSTATUS ntstatus1;
3538         NTSTATUS ntstatus2;
3539
3540         DOM_SID *members;
3541
3542         r_u->status = NT_STATUS_OK;
3543
3544         DEBUG(5,("_samr_query_useraliases: %d\n", __LINE__));
3545
3546         /* find the policy handle.  open a policy on it. */
3547         if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
3548                 return NT_STATUS_INVALID_HANDLE;
3549                 
3550         ntstatus1 = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_LOOKUP_ALIAS_BY_MEM, "_samr_query_useraliases");
3551         ntstatus2 = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_query_useraliases");
3552         
3553         if (!NT_STATUS_IS_OK(ntstatus1) || !NT_STATUS_IS_OK(ntstatus2)) {
3554                 if (!(NT_STATUS_EQUAL(ntstatus1,NT_STATUS_ACCESS_DENIED) && NT_STATUS_IS_OK(ntstatus2)) &&
3555                     !(NT_STATUS_EQUAL(ntstatus1,NT_STATUS_ACCESS_DENIED) && NT_STATUS_IS_OK(ntstatus1))) {
3556                         return (NT_STATUS_IS_OK(ntstatus1)) ? ntstatus2 : ntstatus1;
3557                 }
3558         }               
3559
3560         if (!sid_check_is_domain(&info->sid) &&
3561             !sid_check_is_builtin(&info->sid))
3562                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
3563
3564         members = TALLOC_ARRAY(p->mem_ctx, DOM_SID, q_u->num_sids1);
3565
3566         if (members == NULL)
3567                 return NT_STATUS_NO_MEMORY;
3568
3569         for (i=0; i<q_u->num_sids1; i++)
3570                 sid_copy(&members[i], &q_u->sid[i].sid);
3571
3572         alias_rids = NULL;
3573         num_alias_rids = 0;
3574
3575         become_root();
3576         ntstatus1 = pdb_enum_alias_memberships(p->mem_ctx, &info->sid, members,
3577                                                q_u->num_sids1,
3578                                                &alias_rids, &num_alias_rids);
3579         unbecome_root();
3580
3581         if (!NT_STATUS_IS_OK(ntstatus1)) {
3582                 return ntstatus1;
3583         }
3584
3585         init_samr_r_query_useraliases(r_u, num_alias_rids, alias_rids,
3586                                       NT_STATUS_OK);
3587         return NT_STATUS_OK;
3588 }
3589
3590 /*********************************************************************
3591  _samr_query_aliasmem
3592 *********************************************************************/
3593
3594 NTSTATUS _samr_query_aliasmem(pipes_struct *p, SAMR_Q_QUERY_ALIASMEM *q_u, SAMR_R_QUERY_ALIASMEM *r_u)
3595 {
3596         NTSTATUS status;
3597         size_t i;
3598         size_t num_sids = 0;
3599         DOM_SID2 *sid;
3600         DOM_SID *sids=NULL;
3601
3602         DOM_SID alias_sid;
3603
3604         uint32 acc_granted;
3605
3606         /* find the policy handle.  open a policy on it. */
3607         if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, NULL)) 
3608                 return NT_STATUS_INVALID_HANDLE;
3609         
3610         if (!NT_STATUS_IS_OK(r_u->status = 
3611                 access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_GET_MEMBERS, "_samr_query_aliasmem"))) {
3612                 return r_u->status;
3613         }
3614
3615         DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid)));
3616
3617         status = pdb_enum_aliasmem(&alias_sid, &sids, &num_sids);
3618
3619         if (!NT_STATUS_IS_OK(status)) {
3620                 return status;
3621         }
3622
3623         sid = TALLOC_ZERO_ARRAY(p->mem_ctx, DOM_SID2, num_sids);        
3624         if (num_sids!=0 && sid == NULL) {
3625                 SAFE_FREE(sids);
3626                 return NT_STATUS_NO_MEMORY;
3627         }
3628
3629         for (i = 0; i < num_sids; i++) {
3630                 init_dom_sid2(&sid[i], &sids[i]);
3631         }
3632
3633         init_samr_r_query_aliasmem(r_u, num_sids, sid, NT_STATUS_OK);
3634
3635         SAFE_FREE(sids);
3636
3637         return NT_STATUS_OK;
3638 }
3639
3640 /*********************************************************************
3641  _samr_query_groupmem
3642 *********************************************************************/
3643
3644 NTSTATUS _samr_query_groupmem(pipes_struct *p, SAMR_Q_QUERY_GROUPMEM *q_u, SAMR_R_QUERY_GROUPMEM *r_u)
3645 {
3646         DOM_SID group_sid;
3647         fstring group_sid_str;
3648         size_t i, num_members;
3649
3650         uint32 *rid=NULL;
3651         uint32 *attr=NULL;
3652
3653         uint32 acc_granted;
3654
3655         NTSTATUS result;
3656
3657         /* find the policy handle.  open a policy on it. */
3658         if (!get_lsa_policy_samr_sid(p, &q_u->group_pol, &group_sid, &acc_granted, NULL)) 
3659                 return NT_STATUS_INVALID_HANDLE;
3660                 
3661         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_GET_MEMBERS, "_samr_query_groupmem"))) {
3662                 return r_u->status;
3663         }
3664                 
3665         sid_to_string(group_sid_str, &group_sid);
3666         DEBUG(10, ("sid is %s\n", group_sid_str));
3667
3668         if (!sid_check_is_in_our_domain(&group_sid)) {
3669                 DEBUG(3, ("sid %s is not in our domain\n", group_sid_str));
3670                 return NT_STATUS_NO_SUCH_GROUP;
3671         }
3672
3673         DEBUG(10, ("lookup on Domain SID\n"));
3674
3675         become_root();
3676         result = pdb_enum_group_members(p->mem_ctx, &group_sid,
3677                                         &rid, &num_members);
3678         unbecome_root();
3679
3680         if (!NT_STATUS_IS_OK(result))
3681                 return result;
3682
3683         attr=TALLOC_ZERO_ARRAY(p->mem_ctx, uint32, num_members);
3684         
3685         if ((num_members!=0) && (rid==NULL))
3686                 return NT_STATUS_NO_MEMORY;
3687         
3688         for (i=0; i<num_members; i++)
3689                 attr[i] = SID_NAME_USER;
3690
3691         init_samr_r_query_groupmem(r_u, num_members, rid, attr, NT_STATUS_OK);
3692
3693         return NT_STATUS_OK;
3694 }
3695
3696 /*********************************************************************
3697  _samr_add_aliasmem
3698 *********************************************************************/
3699
3700 NTSTATUS _samr_add_aliasmem(pipes_struct *p, SAMR_Q_ADD_ALIASMEM *q_u, SAMR_R_ADD_ALIASMEM *r_u)
3701 {
3702         DOM_SID alias_sid;
3703         uint32 acc_granted;
3704         SE_PRIV se_rights;
3705         BOOL can_add_accounts;
3706         NTSTATUS ret;
3707         DISP_INFO *disp_info = NULL;
3708
3709         /* Find the policy handle. Open a policy on it. */
3710         if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, &disp_info)) 
3711                 return NT_STATUS_INVALID_HANDLE;
3712         
3713         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_ADD_MEMBER, "_samr_add_aliasmem"))) {
3714                 return r_u->status;
3715         }
3716                 
3717         DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid)));
3718         
3719         se_priv_copy( &se_rights, &se_add_users );
3720         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
3721
3722         /******** BEGIN SeAddUsers BLOCK *********/
3723         
3724         if ( can_add_accounts )
3725                 become_root();
3726         
3727         ret = pdb_add_aliasmem(&alias_sid, &q_u->sid.sid);
3728         
3729         if ( can_add_accounts )
3730                 unbecome_root();
3731                 
3732         /******** END SeAddUsers BLOCK *********/
3733         
3734         if (NT_STATUS_IS_OK(ret)) {
3735                 force_flush_samr_cache(disp_info);
3736         }
3737
3738         return ret;
3739 }
3740
3741 /*********************************************************************
3742  _samr_del_aliasmem
3743 *********************************************************************/
3744
3745 NTSTATUS _samr_del_aliasmem(pipes_struct *p, SAMR_Q_DEL_ALIASMEM *q_u, SAMR_R_DEL_ALIASMEM *r_u)
3746 {
3747         DOM_SID alias_sid;
3748         uint32 acc_granted;
3749         SE_PRIV se_rights;
3750         BOOL can_add_accounts;
3751         NTSTATUS ret;
3752         DISP_INFO *disp_info = NULL;
3753
3754         /* Find the policy handle. Open a policy on it. */
3755         if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, &disp_info)) 
3756                 return NT_STATUS_INVALID_HANDLE;
3757         
3758         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_REMOVE_MEMBER, "_samr_del_aliasmem"))) {
3759                 return r_u->status;
3760         }
3761         
3762         DEBUG(10, ("_samr_del_aliasmem:sid is %s\n",
3763                    sid_string_static(&alias_sid)));
3764
3765         se_priv_copy( &se_rights, &se_add_users );
3766         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
3767
3768         /******** BEGIN SeAddUsers BLOCK *********/
3769         
3770         if ( can_add_accounts )
3771                 become_root();
3772
3773         ret = pdb_del_aliasmem(&alias_sid, &q_u->sid.sid);
3774         
3775         if ( can_add_accounts )
3776                 unbecome_root();
3777                 
3778         /******** END SeAddUsers BLOCK *********/
3779         
3780         if (NT_STATUS_IS_OK(ret)) {
3781                 force_flush_samr_cache(disp_info);
3782         }
3783
3784         return ret;
3785 }
3786
3787 /*********************************************************************
3788  _samr_add_groupmem
3789 *********************************************************************/
3790
3791 NTSTATUS _samr_add_groupmem(pipes_struct *p, SAMR_Q_ADD_GROUPMEM *q_u, SAMR_R_ADD_GROUPMEM *r_u)
3792 {
3793         DOM_SID group_sid;
3794         uint32 group_rid;
3795         uint32 acc_granted;
3796         SE_PRIV se_rights;
3797         BOOL can_add_accounts;
3798         DISP_INFO *disp_info = NULL;
3799
3800         /* Find the policy handle. Open a policy on it. */
3801         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info)) 
3802                 return NT_STATUS_INVALID_HANDLE;
3803         
3804         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_ADD_MEMBER, "_samr_add_groupmem"))) {
3805                 return r_u->status;
3806         }
3807
3808         DEBUG(10, ("sid is %s\n", sid_string_static(&group_sid)));
3809
3810         if (!sid_peek_check_rid(get_global_sam_sid(), &group_sid,
3811                                 &group_rid)) {
3812                 return NT_STATUS_INVALID_HANDLE;
3813         }
3814
3815         se_priv_copy( &se_rights, &se_add_users );
3816         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
3817
3818         /******** BEGIN SeAddUsers BLOCK *********/
3819         
3820         if ( can_add_accounts )
3821                 become_root();
3822
3823         r_u->status = pdb_add_groupmem(p->mem_ctx, group_rid, q_u->rid);
3824                 
3825         if ( can_add_accounts )
3826                 unbecome_root();
3827                 
3828         /******** END SeAddUsers BLOCK *********/
3829         
3830         force_flush_samr_cache(disp_info);
3831
3832         return r_u->status;
3833 }
3834
3835 /*********************************************************************
3836  _samr_del_groupmem
3837 *********************************************************************/
3838
3839 NTSTATUS _samr_del_groupmem(pipes_struct *p, SAMR_Q_DEL_GROUPMEM *q_u, SAMR_R_DEL_GROUPMEM *r_u)
3840 {
3841         DOM_SID group_sid;
3842         uint32 group_rid;
3843         uint32 acc_granted;
3844         SE_PRIV se_rights;
3845         BOOL can_add_accounts;
3846         DISP_INFO *disp_info = NULL;
3847
3848         /*
3849          * delete the group member named q_u->rid
3850          * who is a member of the sid associated with the handle
3851          * the rid is a user's rid as the group is a domain group.
3852          */
3853
3854         /* Find the policy handle. Open a policy on it. */
3855         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info)) 
3856                 return NT_STATUS_INVALID_HANDLE;
3857         
3858         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_REMOVE_MEMBER, "_samr_del_groupmem"))) {
3859                 return r_u->status;
3860         }
3861
3862         if (!sid_peek_check_rid(get_global_sam_sid(), &group_sid,
3863                                 &group_rid)) {
3864                 return NT_STATUS_INVALID_HANDLE;
3865         }
3866
3867         se_priv_copy( &se_rights, &se_add_users );
3868         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
3869
3870         /******** BEGIN SeAddUsers BLOCK *********/
3871         
3872         if ( can_add_accounts )
3873                 become_root();
3874                 
3875         r_u->status = pdb_del_groupmem(p->mem_ctx, group_rid, q_u->rid);
3876
3877         if ( can_add_accounts )
3878                 unbecome_root();
3879                 
3880         /******** END SeAddUsers BLOCK *********/
3881         
3882         force_flush_samr_cache(disp_info);
3883
3884         return r_u->status;
3885 }
3886
3887 /*********************************************************************
3888  _samr_delete_dom_user
3889 *********************************************************************/
3890
3891 NTSTATUS _samr_delete_dom_user(pipes_struct *p, SAMR_Q_DELETE_DOM_USER *q_u, SAMR_R_DELETE_DOM_USER *r_u )
3892 {
3893         DOM_SID user_sid;
3894         struct samu *sam_pass=NULL;
3895         uint32 acc_granted;
3896         BOOL can_add_accounts;
3897         DISP_INFO *disp_info = NULL;
3898
3899         DEBUG(5, ("_samr_delete_dom_user: %d\n", __LINE__));
3900
3901         /* Find the policy handle. Open a policy on it. */
3902         if (!get_lsa_policy_samr_sid(p, &q_u->user_pol, &user_sid, &acc_granted, &disp_info)) 
3903                 return NT_STATUS_INVALID_HANDLE;
3904                 
3905         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_user"))) {
3906                 return r_u->status;
3907         }
3908                 
3909         if (!sid_check_is_in_our_domain(&user_sid))
3910                 return NT_STATUS_CANNOT_DELETE;
3911
3912         /* check if the user exists before trying to delete */
3913         if ( !(sam_pass = samu_new( NULL )) ) {
3914                 return NT_STATUS_NO_MEMORY;
3915         }
3916
3917         if(!pdb_getsampwsid(sam_pass, &user_sid)) {
3918                 DEBUG(5,("_samr_delete_dom_user:User %s doesn't exist.\n", 
3919                         sid_string_static(&user_sid)));
3920                 TALLOC_FREE(sam_pass);
3921                 return NT_STATUS_NO_SUCH_USER;
3922         }
3923         
3924         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
3925
3926         /******** BEGIN SeAddUsers BLOCK *********/
3927         
3928         if ( can_add_accounts )
3929                 become_root();
3930
3931         r_u->status = pdb_delete_user(p->mem_ctx, sam_pass);
3932
3933         if ( can_add_accounts )
3934                 unbecome_root();
3935                 
3936         /******** END SeAddUsers BLOCK *********/
3937                 
3938         if ( !NT_STATUS_IS_OK(r_u->status) ) {
3939                 DEBUG(5,("_samr_delete_dom_user: Failed to delete entry for "
3940                          "user %s: %s.\n", pdb_get_username(sam_pass),
3941                          nt_errstr(r_u->status)));
3942                 TALLOC_FREE(sam_pass);
3943                 return r_u->status;
3944         }
3945
3946
3947         TALLOC_FREE(sam_pass);
3948
3949         if (!close_policy_hnd(p, &q_u->user_pol))
3950                 return NT_STATUS_OBJECT_NAME_INVALID;
3951
3952         force_flush_samr_cache(disp_info);
3953
3954         return NT_STATUS_OK;
3955 }
3956
3957 /*********************************************************************
3958  _samr_delete_dom_group
3959 *********************************************************************/
3960
3961 NTSTATUS _samr_delete_dom_group(pipes_struct *p, SAMR_Q_DELETE_DOM_GROUP *q_u, SAMR_R_DELETE_DOM_GROUP *r_u)
3962 {
3963         DOM_SID group_sid;
3964         uint32 group_rid;
3965         uint32 acc_granted;
3966         SE_PRIV se_rights;
3967         BOOL can_add_accounts;
3968         DISP_INFO *disp_info = NULL;
3969
3970         DEBUG(5, ("samr_delete_dom_group: %d\n", __LINE__));
3971
3972         /* Find the policy handle. Open a policy on it. */
3973         if (!get_lsa_policy_samr_sid(p, &q_u->group_pol, &group_sid, &acc_granted, &disp_info)) 
3974                 return NT_STATUS_INVALID_HANDLE;
3975                 
3976         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_group"))) {
3977                 return r_u->status;
3978         }
3979
3980         DEBUG(10, ("sid is %s\n", sid_string_static(&group_sid)));
3981
3982         if (!sid_peek_check_rid(get_global_sam_sid(), &group_sid,
3983                                 &group_rid)) {
3984                 return NT_STATUS_NO_SUCH_GROUP;
3985         }
3986
3987         se_priv_copy( &se_rights, &se_add_users );
3988         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
3989
3990         /******** BEGIN SeAddUsers BLOCK *********/
3991         
3992         if ( can_add_accounts )
3993                 become_root();
3994
3995         r_u->status = pdb_delete_dom_group(p->mem_ctx, group_rid);
3996
3997         if ( can_add_accounts )
3998                 unbecome_root();
3999                 
4000         /******** END SeAddUsers BLOCK *********/
4001         
4002         if ( !NT_STATUS_IS_OK(r_u->status) ) {
4003                 DEBUG(5,("_samr_delete_dom_group: Failed to delete mapping "
4004                          "entry for group %s: %s\n",
4005                          sid_string_static(&group_sid),
4006                          nt_errstr(r_u->status)));
4007                 return r_u->status;
4008         }
4009         
4010         if (!close_policy_hnd(p, &q_u->group_pol))
4011                 return NT_STATUS_OBJECT_NAME_INVALID;
4012
4013         force_flush_samr_cache(disp_info);
4014
4015         return NT_STATUS_OK;
4016 }
4017
4018 /*********************************************************************
4019  _samr_delete_dom_alias
4020 *********************************************************************/
4021
4022 NTSTATUS _samr_delete_dom_alias(pipes_struct *p, SAMR_Q_DELETE_DOM_ALIAS *q_u, SAMR_R_DELETE_DOM_ALIAS *r_u)
4023 {
4024         DOM_SID alias_sid;
4025         uint32 acc_granted;
4026         SE_PRIV se_rights;
4027         BOOL can_add_accounts;
4028         BOOL ret;
4029         DISP_INFO *disp_info = NULL;
4030
4031         DEBUG(5, ("_samr_delete_dom_alias: %d\n", __LINE__));
4032
4033         /* Find the policy handle. Open a policy on it. */
4034         if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, &disp_info)) 
4035                 return NT_STATUS_INVALID_HANDLE;
4036         
4037         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_alias"))) {
4038                 return r_u->status;
4039         }
4040
4041         DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid)));
4042
4043         if (!sid_check_is_in_our_domain(&alias_sid))
4044                 return NT_STATUS_NO_SUCH_ALIAS;
4045                 
4046         DEBUG(10, ("lookup on Local SID\n"));
4047
4048         se_priv_copy( &se_rights, &se_add_users );
4049         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
4050
4051         /******** BEGIN SeAddUsers BLOCK *********/
4052         
4053         if ( can_add_accounts )
4054                 become_root();
4055
4056         /* Have passdb delete the alias */
4057         ret = pdb_delete_alias(&alias_sid);
4058         
4059         if ( can_add_accounts )
4060                 unbecome_root();
4061                 
4062         /******** END SeAddUsers BLOCK *********/
4063
4064         if ( !ret )
4065                 return NT_STATUS_ACCESS_DENIED;
4066
4067         if (!close_policy_hnd(p, &q_u->alias_pol))
4068                 return NT_STATUS_OBJECT_NAME_INVALID;
4069
4070         force_flush_samr_cache(disp_info);
4071
4072         return NT_STATUS_OK;
4073 }
4074
4075 /*********************************************************************
4076  _samr_create_dom_group
4077 *********************************************************************/
4078
4079 NTSTATUS _samr_create_dom_group(pipes_struct *p, SAMR_Q_CREATE_DOM_GROUP *q_u, SAMR_R_CREATE_DOM_GROUP *r_u)
4080 {
4081         DOM_SID dom_sid;
4082         DOM_SID info_sid;
4083         const char *name;
4084         struct samr_info *info;
4085         uint32 acc_granted;
4086         SE_PRIV se_rights;
4087         BOOL can_add_accounts;
4088         DISP_INFO *disp_info = NULL;
4089
4090         /* Find the policy handle. Open a policy on it. */
4091         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &dom_sid, &acc_granted, &disp_info)) 
4092                 return NT_STATUS_INVALID_HANDLE;
4093         
4094         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_CREATE_GROUP, "_samr_create_dom_group"))) {
4095                 return r_u->status;
4096         }
4097                 
4098         if (!sid_equal(&dom_sid, get_global_sam_sid()))
4099                 return NT_STATUS_ACCESS_DENIED;
4100
4101         name = rpcstr_pull_unistr2_talloc(p->mem_ctx, &q_u->uni_acct_desc);
4102         if (name == NULL) {
4103                 return NT_STATUS_NO_MEMORY;
4104         }
4105
4106         r_u->status = can_create(p->mem_ctx, name);
4107         if (!NT_STATUS_IS_OK(r_u->status)) {
4108                 return r_u->status;
4109         }
4110
4111         se_priv_copy( &se_rights, &se_add_users );
4112         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
4113
4114         /******** BEGIN SeAddUsers BLOCK *********/
4115         
4116         if ( can_add_accounts )
4117                 become_root();
4118         
4119         /* check that we successfully create the UNIX group */
4120         
4121         r_u->status = pdb_create_dom_group(p->mem_ctx, name, &r_u->rid);
4122
4123         if ( can_add_accounts )
4124                 unbecome_root();
4125                 
4126         /******** END SeAddUsers BLOCK *********/
4127         
4128         /* check if we should bail out here */
4129         
4130         if ( !NT_STATUS_IS_OK(r_u->status) )
4131                 return r_u->status;
4132
4133         sid_compose(&info_sid, get_global_sam_sid(), r_u->rid);
4134         
4135         if ((info = get_samr_info_by_sid(&info_sid)) == NULL)
4136                 return NT_STATUS_NO_MEMORY;
4137
4138         /* they created it; let the user do what he wants with it */
4139
4140         info->acc_granted = GENERIC_RIGHTS_GROUP_ALL_ACCESS;
4141
4142         /* get a (unique) handle.  open a policy on it. */
4143         if (!create_policy_hnd(p, &r_u->pol, free_samr_info, (void *)info))
4144                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
4145
4146         force_flush_samr_cache(disp_info);
4147
4148         return NT_STATUS_OK;
4149 }
4150
4151 /*********************************************************************
4152  _samr_create_dom_alias
4153 *********************************************************************/
4154
4155 NTSTATUS _samr_create_dom_alias(pipes_struct *p, SAMR_Q_CREATE_DOM_ALIAS *q_u, SAMR_R_CREATE_DOM_ALIAS *r_u)
4156 {
4157         DOM_SID dom_sid;
4158         DOM_SID info_sid;
4159         fstring name;
4160         struct samr_info *info;
4161         uint32 acc_granted;
4162         gid_t gid;
4163         NTSTATUS result;
4164         SE_PRIV se_rights;
4165         BOOL can_add_accounts;
4166         DISP_INFO *disp_info = NULL;
4167
4168         /* Find the policy handle. Open a policy on it. */
4169         if (!get_lsa_policy_samr_sid(p, &q_u->dom_pol, &dom_sid, &acc_granted, &disp_info)) 
4170                 return NT_STATUS_INVALID_HANDLE;
4171                 
4172         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_CREATE_ALIAS, "_samr_create_alias"))) {
4173                 return r_u->status;
4174         }
4175                 
4176         if (!sid_equal(&dom_sid, get_global_sam_sid()))
4177                 return NT_STATUS_ACCESS_DENIED;
4178
4179         unistr2_to_ascii(name, &q_u->uni_acct_desc, sizeof(name)-1);
4180
4181         se_priv_copy( &se_rights, &se_add_users );
4182         can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights );
4183
4184         result = can_create(p->mem_ctx, name);
4185         if (!NT_STATUS_IS_OK(result)) {
4186                 return result;
4187         }
4188
4189         /******** BEGIN SeAddUsers BLOCK *********/
4190         
4191         if ( can_add_accounts )
4192                 become_root();
4193
4194         /* Have passdb create the alias */
4195         result = pdb_create_alias(name, &r_u->rid);
4196
4197         if ( can_add_accounts )
4198                 unbecome_root();
4199                 
4200         /******** END SeAddUsers BLOCK *********/
4201
4202         if (!NT_STATUS_IS_OK(result)) {
4203                 DEBUG(10, ("pdb_create_alias failed: %s\n",
4204                            nt_errstr(result)));
4205                 return result;
4206         }
4207
4208         sid_copy(&info_sid, get_global_sam_sid());
4209         sid_append_rid(&info_sid, r_u->rid);
4210
4211         if (!sid_to_gid(&info_sid, &gid)) {
4212                 DEBUG(10, ("Could not find alias just created\n"));
4213                 return NT_STATUS_ACCESS_DENIED;
4214         }
4215
4216         /* check if the group has been successfully created */
4217         if ( getgrgid(gid) == NULL ) {
4218                 DEBUG(10, ("getgrgid(%d) of just created alias failed\n",
4219                            gid));
4220                 return NT_STATUS_ACCESS_DENIED;
4221         }
4222
4223         if ((info = get_samr_info_by_sid(&info_sid)) == NULL)
4224                 return NT_STATUS_NO_MEMORY;
4225
4226         /* they created it; let the user do what he wants with it */
4227
4228         info->acc_granted = GENERIC_RIGHTS_ALIAS_ALL_ACCESS;
4229
4230         /* get a (unique) handle.  open a policy on it. */
4231         if (!create_policy_hnd(p, &r_u->alias_pol, free_samr_info, (void *)info))
4232                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
4233
4234         force_flush_samr_cache(disp_info);
4235
4236         return NT_STATUS_OK;
4237 }
4238
4239 /*********************************************************************
4240  _samr_query_groupinfo
4241
4242 sends the name/comment pair of a domain group
4243 level 1 send also the number of users of that group
4244 *********************************************************************/
4245
4246 NTSTATUS _samr_query_groupinfo(pipes_struct *p, SAMR_Q_QUERY_GROUPINFO *q_u, SAMR_R_QUERY_GROUPINFO *r_u)
4247 {
4248         DOM_SID group_sid;
4249         GROUP_MAP map;
4250         GROUP_INFO_CTR *ctr;
4251         uint32 acc_granted;
4252         BOOL ret;
4253
4254         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, NULL)) 
4255                 return NT_STATUS_INVALID_HANDLE;
4256         
4257         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_LOOKUP_INFO, "_samr_query_groupinfo"))) {
4258                 return r_u->status;
4259         }
4260                 
4261         become_root();
4262         ret = get_domain_group_from_sid(group_sid, &map);
4263         unbecome_root();
4264         if (!ret)
4265                 return NT_STATUS_INVALID_HANDLE;
4266
4267         ctr=TALLOC_ZERO_P(p->mem_ctx, GROUP_INFO_CTR);
4268         if (ctr==NULL)
4269                 return NT_STATUS_NO_MEMORY;
4270
4271         switch (q_u->switch_level) {
4272                 case 1: {
4273                         uint32 *members;
4274                         size_t num_members;
4275
4276                         ctr->switch_value1 = 1;
4277
4278                         become_root();
4279                         r_u->status = pdb_enum_group_members(
4280                                 p->mem_ctx, &group_sid, &members, &num_members);
4281                         unbecome_root();
4282         
4283                         if (!NT_STATUS_IS_OK(r_u->status)) {
4284                                 return r_u->status;
4285                         }
4286
4287                         init_samr_group_info1(&ctr->group.info1, map.nt_name,
4288                                       map.comment, num_members);
4289                         break;
4290                 }
4291                 case 3:
4292                         ctr->switch_value1 = 3;
4293                         init_samr_group_info3(&ctr->group.info3);
4294                         break;
4295                 case 4:
4296                         ctr->switch_value1 = 4;
4297                         init_samr_group_info4(&ctr->group.info4, map.comment);
4298                         break;
4299                 default:
4300                         return NT_STATUS_INVALID_INFO_CLASS;
4301         }
4302
4303         init_samr_r_query_groupinfo(r_u, ctr, NT_STATUS_OK);
4304
4305         return NT_STATUS_OK;
4306 }
4307
4308 /*********************************************************************
4309  _samr_set_groupinfo
4310  
4311  update a domain group's comment.
4312 *********************************************************************/
4313
4314 NTSTATUS _samr_set_groupinfo(pipes_struct *p, SAMR_Q_SET_GROUPINFO *q_u, SAMR_R_SET_GROUPINFO *r_u)
4315 {
4316         DOM_SID group_sid;
4317         GROUP_MAP map;
4318         GROUP_INFO_CTR *ctr;
4319         uint32 acc_granted;
4320         NTSTATUS ret;
4321         BOOL result;
4322         BOOL can_mod_accounts;
4323         DISP_INFO *disp_info = NULL;
4324
4325         if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info))
4326                 return NT_STATUS_INVALID_HANDLE;
4327         
4328         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_SET_INFO, "_samr_set_groupinfo"))) {
4329                 return r_u->status;
4330         }
4331
4332         become_root();
4333         result = get_domain_group_from_sid(group_sid, &map);
4334         unbecome_root();
4335         if (!result)
4336                 return NT_STATUS_NO_SUCH_GROUP;
4337         
4338         ctr=q_u->ctr;
4339
4340         switch (ctr->switch_value1) {
4341                 case 1:
4342                         unistr2_to_ascii(map.comment, &(ctr->group.info1.uni_acct_desc), sizeof(map.comment)-1);
4343                         break;
4344                 case 4:
4345                         unistr2_to_ascii(map.comment, &(ctr->group.info4.uni_acct_desc), sizeof(map.comment)-1);
4346                         break;
4347                 default:
4348                         return NT_STATUS_INVALID_INFO_CLASS;
4349         }
4350
4351         can_mod_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
4352
4353         /******** BEGIN SeAddUsers BLOCK *********/
4354
4355         if ( can_mod_accounts )
4356                 become_root();
4357           
4358         ret = pdb_update_group_mapping_entry(&map);
4359
4360         if ( can_mod_accounts )
4361                 unbecome_root();
4362
4363         /******** End SeAddUsers BLOCK *********/
4364
4365         if (NT_STATUS_IS_OK(ret)) {
4366                 force_flush_samr_cache(disp_info);
4367         }
4368
4369         return ret;
4370 }
4371
4372 /*********************************************************************
4373  _samr_set_aliasinfo
4374  
4375  update an alias's comment.
4376 *********************************************************************/
4377
4378 NTSTATUS _samr_set_aliasinfo(pipes_struct *p, SAMR_Q_SET_ALIASINFO *q_u, SAMR_R_SET_ALIASINFO *r_u)
4379 {
4380         DOM_SID group_sid;
4381         struct acct_info info;
4382         ALIAS_INFO_CTR *ctr;
4383         uint32 acc_granted;
4384         BOOL ret;
4385         BOOL can_mod_accounts;
4386         DISP_INFO *disp_info = NULL;
4387
4388         if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &group_sid, &acc_granted, &disp_info))
4389                 return NT_STATUS_INVALID_HANDLE;
4390         
4391         if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_SET_INFO, "_samr_set_aliasinfo"))) {
4392                 return r_u->status;
4393         }
4394                 
4395         ctr=&q_u->ctr;
4396
4397         switch (ctr->level) {
4398                 case 3:
4399                         if ( ctr->alias.info3.description.string ) {
4400                                 unistr2_to_ascii( info.acct_desc, 
4401                                         ctr->alias.info3.description.string, 
4402                                         sizeof(info.acct_desc)-1 );
4403                         }
4404                         else
4405                                 fstrcpy( info.acct_desc, "" );
4406                         break;
4407                 default:
4408                         return NT_STATUS_INVALID_INFO_CLASS;
4409         }
4410
4411         can_mod_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users );
4412
4413         /******** BEGIN SeAddUsers BLOCK *********/
4414
4415         if ( can_mod_accounts )
4416                 become_root();
4417
4418         ret = pdb_set_aliasinfo( &group_sid, &info );
4419
4420         if ( can_mod_accounts )
4421                 unbecome_root();
4422
4423         /******** End SeAddUsers BLOCK *********/
4424
4425         if (ret) {
4426                 force_flush_samr_cache(disp_info);
4427         }
4428
4429         return ret ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4430 }
4431
4432 /*********************************************************************
4433  _samr_get_dom_pwinfo
4434 *********************************************************************/
4435
4436 NTSTATUS _samr_get_dom_pwinfo(pipes_struct *p, SAMR_Q_GET_DOM_PWINFO *q_u, SAMR_R_GET_DOM_PWINFO *r_u)
4437 {
4438         /* Perform access check.  Since this rpc does not require a
4439            policy handle it will not be caught by the access checks on
4440            SAMR_CONNECT or SAMR_CONNECT_ANON. */
4441
4442         if (!pipe_access_check(p)) {
4443                 DEBUG(3, ("access denied to samr_get_dom_pwinfo\n"));
4444                 r_u->status = NT_STATUS_ACCESS_DENIED;
4445                 return r_u->status;
4446         }
4447
4448         /* Actually, returning zeros here works quite well :-). */
4449
4450         return NT_STATUS_OK;
4451 }
4452
4453 /*********************************************************************
4454  _samr_open_group
4455 *********************************************************************/
4456
4457 NTSTATUS _samr_open_group(pipes_struct *p, SAMR_Q_OPEN_GROUP *q_u, SAMR_R_OPEN_GROUP *r_u)
4458 {
4459         DOM_SID sid;
4460         DOM_SID info_sid;
4461         GROUP_MAP map;
4462         struct samr_info *info;
4463         SEC_DESC         *psd = NULL;
4464         uint32            acc_granted;
4465         uint32            des_access = q_u->access_mask;
4466         size_t            sd_size;
4467         NTSTATUS          status;
4468         fstring sid_string;
4469         BOOL ret;
4470         SE_PRIV se_rights;
4471
4472         if (!get_lsa_policy_samr_sid(p, &q_u->domain_pol, &sid, &acc_granted, NULL)) 
4473                 return NT_STATUS_INVALID_HANDLE;
4474         
4475         status = access_check_samr_function(acc_granted, 
4476                 SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_group");
4477                 
4478         if ( !NT_STATUS_IS_OK(status) )
4479                 return status;
4480                 
4481         /*check if access can be granted as requested by client. */
4482         make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &grp_generic_mapping, NULL, 0);
4483         se_map_generic(&des_access,&grp_generic_mapping);
4484
4485         se_priv_copy( &se_rights, &se_add_users );
4486
4487         status = access_check_samr_object(psd, p->pipe_user.nt_user_token, 
4488                 &se_rights, GENERIC_RIGHTS_GROUP_WRITE, des_access, 
4489                 &acc_granted, "_samr_open_group");
4490                 
4491         if ( !NT_STATUS_IS_OK(status) ) 
4492                 return status;
4493
4494         /* this should not be hard-coded like this */
4495         
4496         if (!sid_equal(&sid, get_global_sam_sid()))
4497                 return NT_STATUS_ACCESS_DENIED;
4498
4499         sid_copy(&info_sid, get_global_sam_sid());
4500         sid_append_rid(&info_sid, q_u->rid_group);
4501         sid_to_string(sid_string, &info_sid);
4502
4503         if ((info = get_samr_info_by_sid(&info_sid)) == NULL)
4504                 return NT_STATUS_NO_MEMORY;
4505                 
4506         info->acc_granted = acc_granted;
4507
4508         DEBUG(10, ("_samr_open_group:Opening SID: %s\n", sid_string));
4509
4510         /* check if that group really exists */
4511         become_root();
4512         ret = get_domain_group_from_sid(info->sid, &map);
4513         unbecome_root();
4514         if (!ret)
4515                 return NT_STATUS_NO_SUCH_GROUP;
4516
4517         /* get a (unique) handle.  open a policy on it. */
4518         if (!create_policy_hnd(p, &r_u->pol, free_samr_info, (void *)info))
4519                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
4520
4521         return NT_STATUS_OK;
4522 }
4523
4524 /*********************************************************************
4525  _samr_remove_sid_foreign_domain
4526 *********************************************************************/
4527
4528 NTSTATUS _samr_remove_sid_foreign_domain(pipes_struct *p, 
4529                                           SAMR_Q_REMOVE_SID_FOREIGN_DOMAIN *q_u, 
4530                                           SAMR_R_REMOVE_SID_FOREIGN_DOMAIN *r_u)
4531 {
4532         DOM_SID                 delete_sid, domain_sid;
4533         uint32                  acc_granted;
4534         NTSTATUS                result;
4535         DISP_INFO *disp_info = NULL;
4536
4537         sid_copy( &delete_sid, &q_u->sid.sid );
4538         
4539         DEBUG(5,("_samr_remove_sid_foreign_domain: removing SID [%s]\n",
4540                 sid_string_static(&delete_sid)));
4541                 
4542         /* Find the policy handle. Open a policy on it. */
4543         
4544         if (!get_lsa_policy_samr_sid(p, &q_u->dom_pol, &domain_sid,
4545                                      &acc_granted, &disp_info)) 
4546                 return NT_STATUS_INVALID_HANDLE;
4547         
4548         result = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, 
4549                 "_samr_remove_sid_foreign_domain");
4550                 
4551         if (!NT_STATUS_IS_OK(result)) 
4552                 return result;
4553                         
4554         DEBUG(8, ("_samr_remove_sid_foreign_domain:sid is %s\n", 
4555                 sid_string_static(&domain_sid)));
4556
4557         /* we can only delete a user from a group since we don't have 
4558            nested groups anyways.  So in the latter case, just say OK */
4559
4560         /* TODO: The above comment nowadays is bogus. Since we have nested
4561          * groups now, and aliases members are never reported out of the unix
4562          * group membership, the "just say OK" makes this call a no-op. For
4563          * us. This needs fixing however. */
4564
4565         /* I've only ever seen this in the wild when deleting a user from
4566          * usrmgr.exe. domain_sid is the builtin domain, and the sid to delete
4567          * is the user about to be deleted. I very much suspect this is the
4568          * only application of this call. To verify this, let people report
4569          * other cases. */
4570
4571         if (!sid_check_is_builtin(&domain_sid)) {
4572                 DEBUG(1,("_samr_remove_sid_foreign_domain: domain_sid = %s, "
4573                          "global_sam_sid() = %s\n",
4574                          sid_string_static(&domain_sid),
4575                          sid_string_static(get_global_sam_sid())));
4576                 DEBUGADD(1,("please report to samba-technical@samba.org!\n"));
4577                 return NT_STATUS_OK;
4578         }
4579
4580         force_flush_samr_cache(disp_info);
4581
4582         result = NT_STATUS_OK;
4583
4584         return result;
4585 }
4586
4587 /*******************************************************************
4588  _samr_query_domain_info2
4589  ********************************************************************/
4590
4591 NTSTATUS _samr_query_domain_info2(pipes_struct *p,
4592                 SAMR_Q_QUERY_DOMAIN_INFO2 *q_u,
4593                 SAMR_R_QUERY_DOMAIN_INFO2 *r_u)
4594 {
4595         struct samr_info *info = NULL;
4596         SAM_UNK_CTR *ctr;
4597         uint32 min_pass_len,pass_hist,password_properties;
4598         time_t u_expire, u_min_age;
4599         NTTIME nt_expire, nt_min_age;
4600
4601         time_t u_lock_duration, u_reset_time;
4602         NTTIME nt_lock_duration, nt_reset_time;
4603         uint32 lockout;
4604         
4605         time_t u_logout;
4606         NTTIME nt_logout;
4607
4608         uint32 num_users=0, num_groups=0, num_aliases=0;
4609
4610         uint32 account_policy_temp;
4611
4612         time_t seq_num;
4613         uint32 server_role;
4614
4615         if ((ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_UNK_CTR)) == NULL)
4616                 return NT_STATUS_NO_MEMORY;
4617
4618         ZERO_STRUCTP(ctr);
4619
4620         r_u->status = NT_STATUS_OK;
4621
4622         DEBUG(5,("_samr_query_domain_info2: %d\n", __LINE__));
4623
4624         /* find the policy handle.  open a policy on it. */
4625         if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info))
4626                 return NT_STATUS_INVALID_HANDLE;
4627
4628         switch (q_u->switch_value) {
4629                 case 0x01:
4630                         pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp);
4631                         min_pass_len = account_policy_temp;
4632
4633                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp);
4634                         pass_hist = account_policy_temp;
4635
4636                         pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp);
4637                         password_properties = account_policy_temp;
4638
4639                         pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp);
4640                         u_expire = account_policy_temp;
4641
4642                         pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp);
4643                         u_min_age = account_policy_temp;
4644
4645                         unix_to_nt_time_abs(&nt_expire, u_expire);
4646                         unix_to_nt_time_abs(&nt_min_age, u_min_age);
4647
4648                         init_unk_info1(&ctr->info.inf1, (uint16)min_pass_len, (uint16)pass_hist, 
4649                                        password_properties, nt_expire, nt_min_age);
4650                         break;
4651                 case 0x02:
4652                         become_root();          
4653                         num_users = count_sam_users(info->disp_info, ACB_NORMAL);
4654                         num_groups = count_sam_groups(info->disp_info);
4655                         num_aliases = count_sam_aliases(info->disp_info);
4656                         unbecome_root();
4657
4658                         pdb_get_account_policy(AP_TIME_TO_LOGOUT, &account_policy_temp);
4659                         u_logout = account_policy_temp;
4660
4661                         unix_to_nt_time_abs(&nt_logout, u_logout);
4662
4663                         if (!pdb_get_seq_num(&seq_num))
4664                                 seq_num = time(NULL);
4665
4666                         server_role = ROLE_DOMAIN_PDC;
4667                         if (lp_server_role() == ROLE_DOMAIN_BDC)
4668                                 server_role = ROLE_DOMAIN_BDC;
4669
4670                         init_unk_info2(&ctr->info.inf2, lp_serverstring(), lp_workgroup(), global_myname(), seq_num, 
4671                                        num_users, num_groups, num_aliases, nt_logout, server_role);
4672                         break;
4673                 case 0x03:
4674                         pdb_get_account_policy(AP_TIME_TO_LOGOUT, &account_policy_temp);
4675                         u_logout = account_policy_temp;
4676
4677                         unix_to_nt_time_abs(&nt_logout, u_logout);
4678                         
4679                         init_unk_info3(&ctr->info.inf3, nt_logout);
4680                         break;
4681                 case 0x05:
4682                         init_unk_info5(&ctr->info.inf5, global_myname());
4683                         break;
4684                 case 0x06:
4685                         init_unk_info6(&ctr->info.inf6);
4686                         break;
4687                 case 0x07:
4688                         server_role = ROLE_DOMAIN_PDC;
4689                         if (lp_server_role() == ROLE_DOMAIN_BDC)
4690                                 server_role = ROLE_DOMAIN_BDC;
4691
4692                         init_unk_info7(&ctr->info.inf7, server_role);
4693                         break;
4694                 case 0x08:
4695                         if (!pdb_get_seq_num(&seq_num))
4696                                 seq_num = time(NULL);
4697
4698                         init_unk_info8(&ctr->info.inf8, (uint32) seq_num);
4699                         break;
4700                 case 0x0c:
4701                         pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &account_policy_temp);
4702                         u_lock_duration = account_policy_temp;
4703                         if (u_lock_duration != -1)
4704                                 u_lock_duration *= 60;
4705
4706                         pdb_get_account_policy(AP_RESET_COUNT_TIME, &account_policy_temp);
4707                         u_reset_time = account_policy_temp * 60;
4708
4709                         pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_temp);
4710                         lockout = account_policy_temp;
4711         
4712                         unix_to_nt_time_abs(&nt_lock_duration, u_lock_duration);
4713                         unix_to_nt_time_abs(&nt_reset_time, u_reset_time);
4714         
4715                         init_unk_info12(&ctr->info.inf12, nt_lock_duration, nt_reset_time, (uint16)lockout);
4716                         break;
4717                 default:
4718                         return NT_STATUS_INVALID_INFO_CLASS;
4719         }
4720
4721         init_samr_r_samr_query_domain_info2(r_u, q_u->switch_value, ctr, NT_STATUS_OK);
4722
4723         DEBUG(5,("_samr_query_domain_info2: %d\n", __LINE__));
4724
4725         return r_u->status;
4726 }
4727
4728 /*******************************************************************
4729  _samr_
4730  ********************************************************************/
4731
4732 NTSTATUS _samr_set_dom_info(pipes_struct *p, SAMR_Q_SET_DOMAIN_INFO *q_u, SAMR_R_SET_DOMAIN_INFO *r_u)
4733 {
4734         time_t u_expire, u_min_age;
4735         time_t u_logout;
4736         time_t u_lock_duration, u_reset_time;
4737
4738         r_u->status = NT_STATUS_OK;
4739
4740         DEBUG(5,("_samr_set_dom_info: %d\n", __LINE__));
4741
4742         /* find the policy handle.  open a policy on it. */
4743         if (!find_policy_by_hnd(p, &q_u->domain_pol, NULL))
4744                 return NT_STATUS_INVALID_HANDLE;
4745
4746         DEBUG(5,("_samr_set_dom_info: switch_value: %d\n", q_u->switch_value));
4747
4748         switch (q_u->switch_value) {
4749                 case 0x01:
4750                         u_expire=nt_time_to_unix_abs(&q_u->ctr->info.inf1.expire);
4751                         u_min_age=nt_time_to_unix_abs(&q_u->ctr->info.inf1.min_passwordage);
4752                         
4753                         pdb_set_account_policy(AP_MIN_PASSWORD_LEN, (uint32)q_u->ctr->info.inf1.min_length_password);
4754                         pdb_set_account_policy(AP_PASSWORD_HISTORY, (uint32)q_u->ctr->info.inf1.password_history);
4755                         pdb_set_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, (uint32)q_u->ctr->info.inf1.password_properties);
4756                         pdb_set_account_policy(AP_MAX_PASSWORD_AGE, (int)u_expire);
4757                         pdb_set_account_policy(AP_MIN_PASSWORD_AGE, (int)u_min_age);
4758                         break;
4759                 case 0x02:
4760                         break;
4761                 case 0x03:
4762                         u_logout=nt_time_to_unix_abs(&q_u->ctr->info.inf3.logout);
4763                         pdb_set_account_policy(AP_TIME_TO_LOGOUT, (int)u_logout);
4764                         break;
4765                 case 0x05:
4766                         break;
4767                 case 0x06:
4768                         break;
4769                 case 0x07:
4770                         break;
4771                 case 0x0c:
4772                         u_lock_duration=nt_time_to_unix_abs(&q_u->ctr->info.inf12.duration);
4773                         if (u_lock_duration != -1)
4774                                 u_lock_duration /= 60;
4775
4776                         u_reset_time=nt_time_to_unix_abs(&q_u->ctr->info.inf12.reset_count)/60;
4777                         
4778                         pdb_set_account_policy(AP_LOCK_ACCOUNT_DURATION, (int)u_lock_duration);
4779                         pdb_set_account_policy(AP_RESET_COUNT_TIME, (int)u_reset_time);
4780                         pdb_set_account_policy(AP_BAD_ATTEMPT_LOCKOUT, (uint32)q_u->ctr->info.inf12.bad_attempt_lockout);
4781                         break;
4782                 default:
4783                         return NT_STATUS_INVALID_INFO_CLASS;
4784         }
4785
4786         init_samr_r_set_domain_info(r_u, NT_STATUS_OK);
4787
4788         DEBUG(5,("_samr_set_dom_info: %d\n", __LINE__));
4789
4790         return r_u->status;
4791 }