2 Unix SMB/CIFS implementation.
3 Privileges handling functions
4 Copyright (C) Jean François Micouleau 1998-2001
5 Copyright (C) Simo Sorce 2002-2003
6 Copyright (C) Gerald (Jerry) Carter 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #define PRIVPREFIX "PRIV_"
28 static const SE_PRIV se_priv_all = SE_ALL_PRIVS;
29 static const SE_PRIV se_priv_end = SE_END;
31 /* Define variables for all privileges so we can use the
32 SE_PRIV* in the various se_priv_XXX() functions */
34 const SE_PRIV se_priv_none = SE_NONE;
35 const SE_PRIV se_machine_account = SE_MACHINE_ACCOUNT;
36 const SE_PRIV se_print_operator = SE_PRINT_OPERATOR;
37 const SE_PRIV se_add_users = SE_ADD_USERS;
38 const SE_PRIV se_disk_operators = SE_DISK_OPERATOR;
39 const SE_PRIV se_remote_shutdown = SE_REMOTE_SHUTDOWN;
40 const SE_PRIV se_restore = SE_RESTORE;
41 const SE_PRIV se_take_ownership = SE_TAKE_OWNERSHIP;
43 /********************************************************************
44 This is a list of privileges reported by a WIndows 2000 SP4 AD DC
45 just for reference purposes (and I know the LUID is not guaranteed
48 SeCreateTokenPrivilege Create a token object ( 0x0, 0x2 )
49 SeAssignPrimaryTokenPrivilege Replace a process level token ( 0x0, 0x3 )
50 SeLockMemoryPrivilege Lock pages in memory ( 0x0, 0x4 )
51 SeIncreaseQuotaPrivilege Increase quotas ( 0x0, 0x5 )
52 SeMachineAccountPrivilege Add workstations to domain ( 0x0, 0x6 )
53 SeTcbPrivilege Act as part of the operating system ( 0x0, 0x7 )
54 SeSecurityPrivilege Manage auditing and security log ( 0x0, 0x8 )
55 SeTakeOwnershipPrivilege Take ownership of files or other objects ( 0x0, 0x9 )
56 SeLoadDriverPrivilege Load and unload device drivers ( 0x0, 0xa )
57 SeSystemProfilePrivilege Profile system performance ( 0x0, 0xb )
58 SeSystemtimePrivilege Change the system time ( 0x0, 0xc )
59 SeProfileSingleProcessPrivilege Profile single process ( 0x0, 0xd )
60 SeIncreaseBasePriorityPrivilege Increase scheduling priority ( 0x0, 0xe )
61 SeCreatePagefilePrivilege Create a pagefile ( 0x0, 0xf )
62 SeCreatePermanentPrivilege Create permanent shared objects ( 0x0, 0x10 )
63 SeBackupPrivilege Back up files and directories ( 0x0, 0x11 )
64 SeRestorePrivilege Restore files and directories ( 0x0, 0x12 )
65 SeShutdownPrivilege Shut down the system ( 0x0, 0x13 )
66 SeDebugPrivilege Debug programs ( 0x0, 0x14 )
67 SeAuditPrivilege Generate security audits ( 0x0, 0x15 )
68 SeSystemEnvironmentPrivilege Modify firmware environment values ( 0x0, 0x16 )
69 SeChangeNotifyPrivilege Bypass traverse checking ( 0x0, 0x17 )
70 SeRemoteShutdownPrivilege Force shutdown from a remote system ( 0x0, 0x18 )
71 SeUndockPrivilege Remove computer from docking station ( 0x0, 0x19 )
72 SeSyncAgentPrivilege Synchronize directory service data ( 0x0, 0x1a )
73 SeEnableDelegationPrivilege Enable computer and user accounts to be trusted for delegation ( 0x0, 0x1b )
74 SeManageVolumePrivilege Perform volume maintenance tasks ( 0x0, 0x1c )
75 SeImpersonatePrivilege Impersonate a client after authentication ( 0x0, 0x1d )
76 SeCreateGlobalPrivilege Create global objects ( 0x0, 0x1e )
78 ********************************************************************/
80 /* we have to define the LUID here due to a horrible check by printmig.exe
81 that requires the SeBackupPrivilege match what is in Windows. So match
82 those that we implement and start Samba privileges at 0x1001 */
85 #if 0 /* usrmgr will display these twice if you include them. We don't
86 use them but we'll keep the bitmasks reserved in privileges.h anyways */
88 {SE_NETWORK_LOGON, "SeNetworkLogonRight", "Access this computer from network", { 0x0, 0x0 }},
89 {SE_INTERACTIVE_LOGON, "SeInteractiveLogonRight", "Log on locally", { 0x0, 0x0 }},
90 {SE_BATCH_LOGON, "SeBatchLogonRight", "Log on as a batch job", { 0x0, 0x0 }},
91 {SE_SERVICE_LOGON, "SeServiceLogonRight", "Log on as a service", { 0x0, 0x0 }},
93 {SE_MACHINE_ACCOUNT, "SeMachineAccountPrivilege", "Add machines to domain", { 0x0, 0x0006 }},
94 {SE_TAKE_OWNERSHIP, "SeTakeOwnershipPrivilege", "Take ownership of files or other objects",{ 0x0, 0x0009 }},
95 {SE_BACKUP, "SeBackupPrivilege", "Back up files and directories", { 0x0, 0x0011 }},
96 {SE_RESTORE, "SeRestorePrivilege", "Restore files and directories", { 0x0, 0x0012 }},
97 {SE_REMOTE_SHUTDOWN, "SeRemoteShutdownPrivilege", "Force shutdown from a remote system", { 0x0, 0x0018 }},
99 {SE_PRINT_OPERATOR, "SePrintOperatorPrivilege", "Manage printers", { 0x0, 0x1001 }},
100 {SE_ADD_USERS, "SeAddUsersPrivilege", "Add users and groups to the domain", { 0x0, 0x1002 }},
101 {SE_DISK_OPERATOR, "SeDiskOperatorPrivilege", "Manage disk shares", { 0x0, 0x1003 }},
103 {SE_END, "", "", { 0x0, 0x0 }}
116 /***************************************************************************
117 copy an SE_PRIV structure
118 ****************************************************************************/
120 BOOL se_priv_copy( SE_PRIV *dst, const SE_PRIV *src )
125 memcpy( dst, src, sizeof(SE_PRIV) );
130 /***************************************************************************
131 combine 2 SE_PRIV structures and store the resulting set in mew_mask
132 ****************************************************************************/
134 void se_priv_add( SE_PRIV *mask, const SE_PRIV *addpriv )
138 for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
139 mask->mask[i] |= addpriv->mask[i];
143 /***************************************************************************
144 remove one SE_PRIV sytucture from another and store the resulting set
146 ****************************************************************************/
148 void se_priv_remove( SE_PRIV *mask, const SE_PRIV *removepriv )
152 for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
153 mask->mask[i] &= ~removepriv->mask[i];
157 /***************************************************************************
158 invert a given SE_PRIV and store the set in new_mask
159 ****************************************************************************/
161 static void se_priv_invert( SE_PRIV *new_mask, const SE_PRIV *mask )
165 se_priv_copy( &allprivs, &se_priv_all );
166 se_priv_remove( &allprivs, mask );
167 se_priv_copy( new_mask, &allprivs );
170 /***************************************************************************
171 check if 2 SE_PRIV structure are equal
172 ****************************************************************************/
174 static BOOL se_priv_equal( const SE_PRIV *mask1, const SE_PRIV *mask2 )
176 return ( memcmp(mask1, mask2, sizeof(SE_PRIV)) == 0 );
179 /***************************************************************************
180 check if a SE_PRIV has any assigned privileges
181 ****************************************************************************/
183 static BOOL se_priv_empty( const SE_PRIV *mask )
188 se_priv_copy( &p1, mask );
190 for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
191 p1.mask[i] &= se_priv_all.mask[i];
194 return se_priv_equal( &p1, &se_priv_none );
197 /*********************************************************************
198 Lookup the SE_PRIV value for a privilege name
199 *********************************************************************/
201 BOOL se_priv_from_name( const char *name, SE_PRIV *mask )
205 for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
206 if ( strequal( privs[i].name, name ) ) {
207 se_priv_copy( mask, &privs[i].se_priv );
215 /***************************************************************************
216 dump an SE_PRIV structure to the log files
217 ****************************************************************************/
219 void dump_se_priv( int dbg_cl, int dbg_lvl, const SE_PRIV *mask )
223 DEBUGADDC( dbg_cl, dbg_lvl,("SE_PRIV "));
225 for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
226 DEBUGADDC( dbg_cl, dbg_lvl,(" 0x%x", mask->mask[i] ));
229 DEBUGADDC( dbg_cl, dbg_lvl, ("\n"));
232 /***************************************************************************
233 Retrieve the privilege mask (set) for a given SID
234 ****************************************************************************/
236 static BOOL get_privileges( const DOM_SID *sid, SE_PRIV *mask )
238 TDB_CONTEXT *tdb = get_account_pol_tdb();
242 /* Fail if the admin has not enable privileges */
244 if ( !lp_enable_privileges() ) {
251 /* PRIV_<SID> (NULL terminated) as the key */
253 fstr_sprintf( keystr, "%s%s", PRIVPREFIX, sid_string_static(sid) );
255 key.dsize = strlen(keystr) + 1;
257 data = tdb_fetch( tdb, key );
260 DEBUG(3,("get_privileges: No privileges assigned to SID [%s]\n",
261 sid_string_static(sid)));
265 SMB_ASSERT( data.dsize == sizeof( SE_PRIV ) );
267 se_priv_copy( mask, (SE_PRIV*)data.dptr );
268 SAFE_FREE(data.dptr);
273 /***************************************************************************
274 Store the privilege mask (set) for a given SID
275 ****************************************************************************/
277 static BOOL set_privileges( const DOM_SID *sid, SE_PRIV *mask )
279 TDB_CONTEXT *tdb = get_account_pol_tdb();
283 if ( !lp_enable_privileges() )
289 if ( !sid || (sid->num_auths == 0) ) {
290 DEBUG(0,("set_privileges: Refusing to store empty SID!\n"));
294 /* PRIV_<SID> (NULL terminated) as the key */
296 fstr_sprintf( keystr, "%s%s", PRIVPREFIX, sid_string_static(sid) );
298 key.dsize = strlen(keystr) + 1;
300 /* no packing. static size structure, just write it out */
302 data.dptr = (char*)mask;
303 data.dsize = sizeof(SE_PRIV);
305 return ( tdb_store(tdb, key, data, TDB_REPLACE) != -1 );
308 /****************************************************************************
309 check if the privilege is in the privilege list
310 ****************************************************************************/
312 static BOOL is_privilege_assigned( SE_PRIV *privileges, const SE_PRIV *check )
316 if ( !privileges || !check )
319 /* everyone has privileges if you aren't checking for any */
321 if ( se_priv_empty( check ) ) {
322 DEBUG(1,("is_privilege_assigned: no privileges in check_mask!\n"));
326 se_priv_copy( &p1, check );
328 /* invert the SE_PRIV we want to check for and remove that from the
329 original set. If we are left with the SE_PRIV we are checking
330 for then return True */
332 se_priv_invert( &p1, check );
333 se_priv_copy( &p2, privileges );
334 se_priv_remove( &p2, &p1 );
336 return se_priv_equal( &p2, check );
339 /****************************************************************************
340 check if the privilege is in the privilege list
341 ****************************************************************************/
343 static BOOL is_any_privilege_assigned( SE_PRIV *privileges, const SE_PRIV *check )
347 if ( !privileges || !check )
350 /* everyone has privileges if you aren't checking for any */
352 if ( se_priv_empty( check ) ) {
353 DEBUG(1,("is_any_privilege_assigned: no privileges in check_mask!\n"));
357 se_priv_copy( &p1, check );
359 /* invert the SE_PRIV we want to check for and remove that from the
360 original set. If we are left with the SE_PRIV we are checking
361 for then return True */
363 se_priv_invert( &p1, check );
364 se_priv_copy( &p2, privileges );
365 se_priv_remove( &p2, &p1 );
367 /* see if we have any bits left */
369 return !se_priv_empty( &p2 );
372 /****************************************************************************
373 add a privilege to a privilege array
374 ****************************************************************************/
376 static BOOL privilege_set_add(PRIVILEGE_SET *priv_set, LUID_ATTR set)
380 /* we can allocate memory to add the new privilege */
382 new_set = TALLOC_REALLOC_ARRAY(priv_set->mem_ctx, priv_set->set, LUID_ATTR, priv_set->count + 1);
384 DEBUG(0,("privilege_set_add: failed to allocate memory!\n"));
388 new_set[priv_set->count].luid.high = set.luid.high;
389 new_set[priv_set->count].luid.low = set.luid.low;
390 new_set[priv_set->count].attr = set.attr;
393 priv_set->set = new_set;
398 /*********************************************************************
399 Generate the LUID_ATTR structure based on a bitmask
400 *********************************************************************/
402 LUID_ATTR get_privilege_luid( SE_PRIV *mask )
408 priv_luid.luid.high = 0;
410 for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
412 if ( se_priv_equal( &privs[i].se_priv, mask ) ) {
413 priv_luid.luid = privs[i].luid;
421 /*********************************************************************
422 Generate the LUID_ATTR structure based on a bitmask
423 *********************************************************************/
425 const char* get_privilege_dispname( const char *name )
429 for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
431 if ( strequal( privs[i].name, name ) ) {
432 return privs[i].description;
439 /*********************************************************************
440 get a list of all privleges for all sids the in list
441 *********************************************************************/
443 BOOL get_privileges_for_sids(SE_PRIV *privileges, DOM_SID *slist, int scount)
449 se_priv_copy( privileges, &se_priv_none );
451 for ( i=0; i<scount; i++ ) {
452 /* don't add unless we actually have a privilege assigned */
454 if ( !get_privileges( &slist[i], &mask ) )
457 DEBUG(5,("get_privileges_for_sids: sid = %s\nPrivilege set:\n",
458 sid_string_static(&slist[i])));
459 dump_se_priv( DBGC_ALL, 5, &mask );
461 se_priv_add( privileges, &mask );
469 /*********************************************************************
470 travseral functions for privilege_enumerate_accounts
471 *********************************************************************/
473 static int priv_traverse_fn(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void *state)
475 PRIV_SID_LIST *priv = state;
476 int prefixlen = strlen(PRIVPREFIX);
480 /* easy check first */
482 if ( data.dsize != sizeof(SE_PRIV) )
485 /* check we have a PRIV_+SID entry */
487 if ( strncmp(key.dptr, PRIVPREFIX, prefixlen) != 0)
490 /* check to see if we are looking for a particular privilege */
492 if ( !se_priv_equal(&priv->privilege, &se_priv_none) ) {
495 se_priv_copy( &mask, (SE_PRIV*)data.dptr );
497 /* if the SID does not have the specified privilege
500 if ( !is_privilege_assigned( &mask, &priv->privilege) )
504 fstrcpy( sid_string, &key.dptr[strlen(PRIVPREFIX)] );
506 /* this is a last ditch safety check to preventing returning
507 and invalid SID (i've somehow run into this on development branches) */
509 if ( strcmp( "S-0-0", sid_string ) == 0 )
512 if ( !string_to_sid(&sid, sid_string) ) {
513 DEBUG(0,("travsersal_fn_enum__acct: Could not convert SID [%s]\n",
518 add_sid_to_array( NULL, &sid, &priv->sids.list, &priv->sids.count );
523 /*********************************************************************
524 Retreive list of privileged SIDs (for _lsa_enumerate_accounts()
525 *********************************************************************/
527 NTSTATUS privilege_enumerate_accounts(DOM_SID **sids, int *num_sids)
529 TDB_CONTEXT *tdb = get_account_pol_tdb();
534 se_priv_copy( &priv.privilege, &se_priv_none );
536 tdb_traverse( tdb, priv_traverse_fn, &priv);
538 /* give the memory away; caller will free */
540 *sids = priv.sids.list;
541 *num_sids = priv.sids.count;
546 /***************************************************************************
548 ****************************************************************************/
550 BOOL grant_privilege(const DOM_SID *sid, const SE_PRIV *priv_mask)
552 SE_PRIV old_mask, new_mask;
554 ZERO_STRUCT( old_mask );
555 ZERO_STRUCT( new_mask );
557 if ( get_privileges( sid, &old_mask ) )
558 se_priv_copy( &new_mask, &old_mask );
560 se_priv_copy( &new_mask, &se_priv_none );
562 se_priv_add( &new_mask, priv_mask );
564 DEBUG(10,("grant_privilege: %s\n", sid_string_static(sid)));
566 DEBUGADD( 10, ("original privilege mask:\n"));
567 dump_se_priv( DBGC_ALL, 10, &old_mask );
569 DEBUGADD( 10, ("new privilege mask:\n"));
570 dump_se_priv( DBGC_ALL, 10, &new_mask );
572 return set_privileges( sid, &new_mask );
575 /*********************************************************************
576 Add a privilege based on its name
577 *********************************************************************/
579 BOOL grant_privilege_by_name(DOM_SID *sid, const char *name)
583 for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
584 if ( strequal(privs[i].name, name) ) {
585 return grant_privilege( sid, &privs[i].se_priv );
589 DEBUG(3, ("grant_privilege_by_name: No Such Privilege Found (%s)\n", name));
594 /***************************************************************************
595 Remove privilege from sid
596 ****************************************************************************/
598 BOOL revoke_privilege(const DOM_SID *sid, const SE_PRIV *priv_mask)
602 /* if the user has no privileges, then we can't revoke any */
604 if ( !get_privileges( sid, &mask ) )
607 DEBUG(10,("revoke_privilege: %s\n", sid_string_static(sid)));
609 DEBUGADD( 10, ("original privilege mask:\n"));
610 dump_se_priv( DBGC_ALL, 10, &mask );
612 se_priv_remove( &mask, priv_mask );
614 DEBUGADD( 10, ("new privilege mask:\n"));
615 dump_se_priv( DBGC_ALL, 10, &mask );
617 return set_privileges( sid, &mask );
620 /*********************************************************************
621 Revoke all privileges
622 *********************************************************************/
624 BOOL revoke_all_privileges( DOM_SID *sid )
626 return revoke_privilege( sid, &se_priv_all );
629 /*********************************************************************
630 Add a privilege based on its name
631 *********************************************************************/
633 BOOL revoke_privilege_by_name(DOM_SID *sid, const char *name)
637 for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
638 if ( strequal(privs[i].name, name) ) {
639 return revoke_privilege( sid, &privs[i].se_priv );
643 DEBUG(3, ("revoke_privilege_by_name: No Such Privilege Found (%s)\n", name));
648 /***************************************************************************
649 Retrieve the SIDs assigned to a given privilege
650 ****************************************************************************/
652 NTSTATUS privilege_create_account(const DOM_SID *sid )
654 return ( grant_privilege(sid, &se_priv_none) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL);
657 /****************************************************************************
658 initialise a privilege list and set the talloc context
659 ****************************************************************************/
661 NTSTATUS privilege_set_init(PRIVILEGE_SET *priv_set)
665 ZERO_STRUCTP( priv_set );
667 mem_ctx = talloc_init("privilege set");
669 DEBUG(0,("privilege_set_init: failed to initialize talloc ctx!\n"));
670 return NT_STATUS_NO_MEMORY;
673 priv_set->mem_ctx = mem_ctx;
678 /****************************************************************************
679 initialise a privilege list and with someone else's talloc context
680 ****************************************************************************/
682 NTSTATUS privilege_set_init_by_ctx(TALLOC_CTX *mem_ctx, PRIVILEGE_SET *priv_set)
684 ZERO_STRUCTP( priv_set );
686 priv_set->mem_ctx = mem_ctx;
687 priv_set->ext_ctx = True;
692 /****************************************************************************
693 Free all memory used by a PRIVILEGE_SET
694 ****************************************************************************/
696 void privilege_set_free(PRIVILEGE_SET *priv_set)
701 if ( !( priv_set->ext_ctx ) )
702 talloc_destroy( priv_set->mem_ctx );
704 ZERO_STRUCTP( priv_set );
707 /****************************************************************************
708 duplicate alloc luid_attr
709 ****************************************************************************/
711 NTSTATUS dup_luid_attr(TALLOC_CTX *mem_ctx, LUID_ATTR **new_la, LUID_ATTR *old_la, int count)
718 *new_la = TALLOC_ARRAY(mem_ctx, LUID_ATTR, count);
720 DEBUG(0,("dup_luid_attr: failed to alloc new LUID_ATTR array [%d]\n", count));
721 return NT_STATUS_NO_MEMORY;
724 for (i=0; i<count; i++) {
725 (*new_la)[i].luid.high = old_la[i].luid.high;
726 (*new_la)[i].luid.low = old_la[i].luid.low;
727 (*new_la)[i].attr = old_la[i].attr;
733 /****************************************************************************
734 Does the user have the specified privilege ? We only deal with one privilege
736 *****************************************************************************/
738 BOOL user_has_privileges(NT_USER_TOKEN *token, const SE_PRIV *privilege)
743 return is_privilege_assigned( &token->privileges, privilege );
746 /****************************************************************************
747 Does the user have any of the specified privileges ? We only deal with one privilege
749 *****************************************************************************/
751 BOOL user_has_any_privilege(NT_USER_TOKEN *token, const SE_PRIV *privilege)
756 return is_any_privilege_assigned( &token->privileges, privilege );
759 /****************************************************************************
760 Convert a LUID to a named string
761 ****************************************************************************/
763 char* luid_to_privilege_name(const LUID *set)
771 for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
772 if ( set->low == privs[i].luid.low ) {
773 fstrcpy( name, privs[i].name );
781 /*******************************************************************
782 return the number of elements in the privlege array
783 *******************************************************************/
785 int count_all_privileges( void )
792 /* loop over the array and count it */
793 for ( count=0; !se_priv_equal(&privs[count].se_priv, &se_priv_end); count++ ) ;
798 /*******************************************************************
799 *******************************************************************/
801 BOOL se_priv_to_privilege_set( PRIVILEGE_SET *set, SE_PRIV *mask )
804 uint32 num_privs = count_all_privileges();
810 for ( i=0; i<num_privs; i++ ) {
811 if ( !is_privilege_assigned(mask, &privs[i].se_priv) )
814 luid.luid = privs[i].luid;
816 if ( !privilege_set_add( set, luid ) )
823 /*******************************************************************
824 *******************************************************************/
826 static BOOL luid_to_se_priv( LUID *luid, SE_PRIV *mask )
829 uint32 num_privs = count_all_privileges();
831 for ( i=0; i<num_privs; i++ ) {
832 if ( luid->low == privs[i].luid.low ) {
833 se_priv_copy( mask, &privs[i].se_priv );
841 /*******************************************************************
842 *******************************************************************/
844 BOOL privilege_set_to_se_priv( SE_PRIV *mask, PRIVILEGE_SET *privset )
848 ZERO_STRUCTP( mask );
850 for ( i=0; i<privset->count; i++ ) {
853 /* sanity check for invalid privilege. we really
854 only care about the low 32 bits */
856 if ( privset->set[i].luid.high != 0 )
859 if ( luid_to_se_priv( &privset->set[i].luid, &r ) )
860 se_priv_add( mask, &r );
866 /*******************************************************************
867 *******************************************************************/
869 BOOL is_privileged_sid( DOM_SID *sid )
873 return get_privileges( sid, &mask );