Copyright (C) Jean François Micouleau 1998-2001
Copyright (C) Simo Sorce 2002-2003
Copyright (C) Gerald (Jerry) Carter 2005
- Copyright (C) Michael Adam 2007
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#define PRIVPREFIX "PRIV_"
+static const SE_PRIV se_priv_all = SE_ALL_PRIVS;
+static const SE_PRIV se_priv_end = SE_END;
+
+/* Define variables for all privileges so we can use the
+ SE_PRIV* in the various se_priv_XXX() functions */
+
+const SE_PRIV se_priv_none = SE_NONE;
+const SE_PRIV se_machine_account = SE_MACHINE_ACCOUNT;
+const SE_PRIV se_print_operator = SE_PRINT_OPERATOR;
+const SE_PRIV se_add_users = SE_ADD_USERS;
+const SE_PRIV se_disk_operators = SE_DISK_OPERATOR;
+const SE_PRIV se_remote_shutdown = SE_REMOTE_SHUTDOWN;
+const SE_PRIV se_restore = SE_RESTORE;
+const SE_PRIV se_take_ownership = SE_TAKE_OWNERSHIP;
+
+/********************************************************************
+ This is a list of privileges reported by a WIndows 2000 SP4 AD DC
+ just for reference purposes (and I know the LUID is not guaranteed
+ across reboots):
+
+ SeCreateTokenPrivilege Create a token object ( 0x0, 0x2 )
+ SeAssignPrimaryTokenPrivilege Replace a process level token ( 0x0, 0x3 )
+ SeLockMemoryPrivilege Lock pages in memory ( 0x0, 0x4 )
+ SeIncreaseQuotaPrivilege Increase quotas ( 0x0, 0x5 )
+ SeMachineAccountPrivilege Add workstations to domain ( 0x0, 0x6 )
+ SeTcbPrivilege Act as part of the operating system ( 0x0, 0x7 )
+ SeSecurityPrivilege Manage auditing and security log ( 0x0, 0x8 )
+ SeTakeOwnershipPrivilege Take ownership of files or other objects ( 0x0, 0x9 )
+ SeLoadDriverPrivilege Load and unload device drivers ( 0x0, 0xa )
+ SeSystemProfilePrivilege Profile system performance ( 0x0, 0xb )
+ SeSystemtimePrivilege Change the system time ( 0x0, 0xc )
+ SeProfileSingleProcessPrivilege Profile single process ( 0x0, 0xd )
+ SeIncreaseBasePriorityPrivilege Increase scheduling priority ( 0x0, 0xe )
+ SeCreatePagefilePrivilege Create a pagefile ( 0x0, 0xf )
+ SeCreatePermanentPrivilege Create permanent shared objects ( 0x0, 0x10 )
+ SeBackupPrivilege Back up files and directories ( 0x0, 0x11 )
+ SeRestorePrivilege Restore files and directories ( 0x0, 0x12 )
+ SeShutdownPrivilege Shut down the system ( 0x0, 0x13 )
+ SeDebugPrivilege Debug programs ( 0x0, 0x14 )
+ SeAuditPrivilege Generate security audits ( 0x0, 0x15 )
+ SeSystemEnvironmentPrivilege Modify firmware environment values ( 0x0, 0x16 )
+ SeChangeNotifyPrivilege Bypass traverse checking ( 0x0, 0x17 )
+ SeRemoteShutdownPrivilege Force shutdown from a remote system ( 0x0, 0x18 )
+ SeUndockPrivilege Remove computer from docking station ( 0x0, 0x19 )
+ SeSyncAgentPrivilege Synchronize directory service data ( 0x0, 0x1a )
+ SeEnableDelegationPrivilege Enable computer and user accounts to be trusted for delegation ( 0x0, 0x1b )
+ SeManageVolumePrivilege Perform volume maintenance tasks ( 0x0, 0x1c )
+ SeImpersonatePrivilege Impersonate a client after authentication ( 0x0, 0x1d )
+ SeCreateGlobalPrivilege Create global objects ( 0x0, 0x1e )
+
+ ********************************************************************/
+
+/* we have to define the LUID here due to a horrible check by printmig.exe
+ that requires the SeBackupPrivilege match what is in Windows. So match
+ those that we implement and start Samba privileges at 0x1001 */
+
+PRIVS privs[] = {
+#if 0 /* usrmgr will display these twice if you include them. We don't
+ use them but we'll keep the bitmasks reserved in privileges.h anyways */
+
+ {SE_NETWORK_LOGON, "SeNetworkLogonRight", "Access this computer from network", { 0x0, 0x0 }},
+ {SE_INTERACTIVE_LOGON, "SeInteractiveLogonRight", "Log on locally", { 0x0, 0x0 }},
+ {SE_BATCH_LOGON, "SeBatchLogonRight", "Log on as a batch job", { 0x0, 0x0 }},
+ {SE_SERVICE_LOGON, "SeServiceLogonRight", "Log on as a service", { 0x0, 0x0 }},
+#endif
+ {SE_MACHINE_ACCOUNT, "SeMachineAccountPrivilege", "Add machines to domain", { 0x0, 0x0006 }},
+ {SE_TAKE_OWNERSHIP, "SeTakeOwnershipPrivilege", "Take ownership of files or other objects",{ 0x0, 0x0009 }},
+ {SE_BACKUP, "SeBackupPrivilege", "Back up files and directories", { 0x0, 0x0011 }},
+ {SE_RESTORE, "SeRestorePrivilege", "Restore files and directories", { 0x0, 0x0012 }},
+ {SE_REMOTE_SHUTDOWN, "SeRemoteShutdownPrivilege", "Force shutdown from a remote system", { 0x0, 0x0018 }},
+
+ {SE_PRINT_OPERATOR, "SePrintOperatorPrivilege", "Manage printers", { 0x0, 0x1001 }},
+ {SE_ADD_USERS, "SeAddUsersPrivilege", "Add users and groups to the domain", { 0x0, 0x1002 }},
+ {SE_DISK_OPERATOR, "SeDiskOperatorPrivilege", "Manage disk shares", { 0x0, 0x1003 }},
+
+ {SE_END, "", "", { 0x0, 0x0 }}
+};
+
typedef struct {
size_t count;
DOM_SID *list;
SID_LIST sids;
} PRIV_SID_LIST;
+/***************************************************************************
+ copy an SE_PRIV structure
+****************************************************************************/
+
+BOOL se_priv_copy( SE_PRIV *dst, const SE_PRIV *src )
+{
+ if ( !dst || !src )
+ return False;
+
+ memcpy( dst, src, sizeof(SE_PRIV) );
+
+ return True;
+}
+
+/***************************************************************************
+ combine 2 SE_PRIV structures and store the resulting set in mew_mask
+****************************************************************************/
+
+void se_priv_add( SE_PRIV *mask, const SE_PRIV *addpriv )
+{
+ int i;
+
+ for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
+ mask->mask[i] |= addpriv->mask[i];
+ }
+}
+
+/***************************************************************************
+ remove one SE_PRIV sytucture from another and store the resulting set
+ in mew_mask
+****************************************************************************/
+
+void se_priv_remove( SE_PRIV *mask, const SE_PRIV *removepriv )
+{
+ int i;
+
+ for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
+ mask->mask[i] &= ~removepriv->mask[i];
+ }
+}
+
+/***************************************************************************
+ invert a given SE_PRIV and store the set in new_mask
+****************************************************************************/
+
+static void se_priv_invert( SE_PRIV *new_mask, const SE_PRIV *mask )
+{
+ SE_PRIV allprivs;
+
+ se_priv_copy( &allprivs, &se_priv_all );
+ se_priv_remove( &allprivs, mask );
+ se_priv_copy( new_mask, &allprivs );
+}
+
+/***************************************************************************
+ check if 2 SE_PRIV structure are equal
+****************************************************************************/
+
+static BOOL se_priv_equal( const SE_PRIV *mask1, const SE_PRIV *mask2 )
+{
+ return ( memcmp(mask1, mask2, sizeof(SE_PRIV)) == 0 );
+}
+
+/***************************************************************************
+ check if a SE_PRIV has any assigned privileges
+****************************************************************************/
+
+static BOOL se_priv_empty( const SE_PRIV *mask )
+{
+ SE_PRIV p1;
+ int i;
+
+ se_priv_copy( &p1, mask );
+
+ for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
+ p1.mask[i] &= se_priv_all.mask[i];
+ }
+
+ return se_priv_equal( &p1, &se_priv_none );
+}
+
+/*********************************************************************
+ Lookup the SE_PRIV value for a privilege name
+*********************************************************************/
+
+BOOL se_priv_from_name( const char *name, SE_PRIV *mask )
+{
+ int i;
+
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+ if ( strequal( privs[i].name, name ) ) {
+ se_priv_copy( mask, &privs[i].se_priv );
+ return True;
+ }
+ }
+
+ return False;
+}
+
+/***************************************************************************
+ dump an SE_PRIV structure to the log files
+****************************************************************************/
+
+void dump_se_priv( int dbg_cl, int dbg_lvl, const SE_PRIV *mask )
+{
+ int i;
+
+ DEBUGADDC( dbg_cl, dbg_lvl,("SE_PRIV "));
+
+ for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
+ DEBUGADDC( dbg_cl, dbg_lvl,(" 0x%x", mask->mask[i] ));
+ }
+
+ DEBUGADDC( dbg_cl, dbg_lvl, ("\n"));
+}
+
+/***************************************************************************
+ Retrieve the privilege mask (set) for a given SID
+****************************************************************************/
static BOOL get_privileges( const DOM_SID *sid, SE_PRIV *mask )
{
TDB_CONTEXT *tdb = get_account_pol_tdb();
fstring keystr;
- TDB_DATA data;
+ TDB_DATA key, data;
/* Fail if the admin has not enable privileges */
/* PRIV_<SID> (NULL terminated) as the key */
fstr_sprintf( keystr, "%s%s", PRIVPREFIX, sid_string_static(sid) );
+ key.dptr = keystr;
+ key.dsize = strlen(keystr) + 1;
- data = tdb_fetch_bystring( tdb, keystr );
+ data = tdb_fetch( tdb, key );
if ( !data.dptr ) {
DEBUG(3,("get_privileges: No privileges assigned to SID [%s]\n",
{
TDB_CONTEXT *tdb = get_account_pol_tdb();
fstring keystr;
- TDB_DATA data;
+ TDB_DATA key, data;
if ( !lp_enable_privileges() )
return False;
/* PRIV_<SID> (NULL terminated) as the key */
fstr_sprintf( keystr, "%s%s", PRIVPREFIX, sid_string_static(sid) );
+ key.dptr = keystr;
+ key.dsize = strlen(keystr) + 1;
/* no packing. static size structure, just write it out */
- data.dptr = (uint8 *)mask;
+ data.dptr = (char*)mask;
data.dsize = sizeof(SE_PRIV);
- return ( tdb_store_bystring(tdb, keystr, data, TDB_REPLACE) != -1 );
+ return ( tdb_store(tdb, key, data, TDB_REPLACE) != -1 );
+}
+
+/****************************************************************************
+ check if the privilege is in the privilege list
+****************************************************************************/
+
+static BOOL is_privilege_assigned( const SE_PRIV *privileges,
+ const SE_PRIV *check )
+{
+ SE_PRIV p1, p2;
+
+ if ( !privileges || !check )
+ return False;
+
+ /* everyone has privileges if you aren't checking for any */
+
+ if ( se_priv_empty( check ) ) {
+ DEBUG(1,("is_privilege_assigned: no privileges in check_mask!\n"));
+ return True;
+ }
+
+ se_priv_copy( &p1, check );
+
+ /* invert the SE_PRIV we want to check for and remove that from the
+ original set. If we are left with the SE_PRIV we are checking
+ for then return True */
+
+ se_priv_invert( &p1, check );
+ se_priv_copy( &p2, privileges );
+ se_priv_remove( &p2, &p1 );
+
+ return se_priv_equal( &p2, check );
+}
+
+/****************************************************************************
+ check if the privilege is in the privilege list
+****************************************************************************/
+
+static BOOL is_any_privilege_assigned( SE_PRIV *privileges, const SE_PRIV *check )
+{
+ SE_PRIV p1, p2;
+
+ if ( !privileges || !check )
+ return False;
+
+ /* everyone has privileges if you aren't checking for any */
+
+ if ( se_priv_empty( check ) ) {
+ DEBUG(1,("is_any_privilege_assigned: no privileges in check_mask!\n"));
+ return True;
+ }
+
+ se_priv_copy( &p1, check );
+
+ /* invert the SE_PRIV we want to check for and remove that from the
+ original set. If we are left with the SE_PRIV we are checking
+ for then return True */
+
+ se_priv_invert( &p1, check );
+ se_priv_copy( &p2, privileges );
+ se_priv_remove( &p2, &p1 );
+
+ /* see if we have any bits left */
+
+ return !se_priv_empty( &p2 );
+}
+
+/****************************************************************************
+ add a privilege to a privilege array
+ ****************************************************************************/
+
+static BOOL privilege_set_add(PRIVILEGE_SET *priv_set, LUID_ATTR set)
+{
+ LUID_ATTR *new_set;
+
+ /* we can allocate memory to add the new privilege */
+
+ new_set = TALLOC_REALLOC_ARRAY(priv_set->mem_ctx, priv_set->set, LUID_ATTR, priv_set->count + 1);
+ if ( !new_set ) {
+ DEBUG(0,("privilege_set_add: failed to allocate memory!\n"));
+ return False;
+ }
+
+ new_set[priv_set->count].luid.high = set.luid.high;
+ new_set[priv_set->count].luid.low = set.luid.low;
+ new_set[priv_set->count].attr = set.attr;
+
+ priv_set->count++;
+ priv_set->set = new_set;
+
+ return True;
+}
+
+/*********************************************************************
+ Generate the LUID_ATTR structure based on a bitmask
+ The assumption here is that the privilege has already been validated
+ so we are guaranteed to find it in the list.
+*********************************************************************/
+
+LUID_ATTR get_privilege_luid( SE_PRIV *mask )
+{
+ LUID_ATTR priv_luid;
+ int i;
+
+ ZERO_STRUCT( priv_luid );
+
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+
+ if ( se_priv_equal( &privs[i].se_priv, mask ) ) {
+ priv_luid.luid = privs[i].luid;
+ break;
+ }
+ }
+
+ return priv_luid;
+}
+
+/*********************************************************************
+ Generate the LUID_ATTR structure based on a bitmask
+*********************************************************************/
+
+const char* get_privilege_dispname( const char *name )
+{
+ int i;
+
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+
+ if ( strequal( privs[i].name, name ) ) {
+ return privs[i].description;
+ }
+ }
+
+ return NULL;
}
/*********************************************************************
/* check we have a PRIV_+SID entry */
- if ( strncmp((const char *)key.dptr, PRIVPREFIX, prefixlen) != 0)
+ if ( strncmp(key.dptr, PRIVPREFIX, prefixlen) != 0)
return 0;
/* check to see if we are looking for a particular privilege */
return 0;
}
- fstrcpy( sid_string, (const char *)&key.dptr[strlen(PRIVPREFIX)] );
+ fstrcpy( sid_string, &key.dptr[strlen(PRIVPREFIX)] );
/* this is a last ditch safety check to preventing returning
and invalid SID (i've somehow run into this on development branches) */
BOOL grant_privilege_by_name(DOM_SID *sid, const char *name)
{
- SE_PRIV mask;
+ int i;
- if (! se_priv_from_name(name, &mask)) {
- DEBUG(3, ("grant_privilege_by_name: "
- "No Such Privilege Found (%s)\n", name));
- return False;
- }
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+ if ( strequal(privs[i].name, name) ) {
+ return grant_privilege( sid, &privs[i].se_priv );
+ }
+ }
- return grant_privilege( sid, &mask );
+ DEBUG(3, ("grant_privilege_by_name: No Such Privilege Found (%s)\n", name));
+
+ return False;
}
/***************************************************************************
BOOL revoke_privilege_by_name(DOM_SID *sid, const char *name)
{
- SE_PRIV mask;
+ int i;
- if (! se_priv_from_name(name, &mask)) {
- DEBUG(3, ("revoke_privilege_by_name: "
- "No Such Privilege Found (%s)\n", name));
- return False;
- }
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+ if ( strequal(privs[i].name, name) ) {
+ return revoke_privilege( sid, &privs[i].se_priv );
+ }
+ }
- return revoke_privilege(sid, &mask);
+ DEBUG(3, ("revoke_privilege_by_name: No Such Privilege Found (%s)\n", name));
+ return False;
}
/***************************************************************************
return NT_STATUS_OK;
}
+/****************************************************************************
+ Does the user have the specified privilege ? We only deal with one privilege
+ at a time here.
+*****************************************************************************/
+
+BOOL user_has_privileges(const NT_USER_TOKEN *token, const SE_PRIV *privilege)
+{
+ if ( !token )
+ return False;
+
+ return is_privilege_assigned( &token->privileges, privilege );
+}
+
+/****************************************************************************
+ Does the user have any of the specified privileges ? We only deal with one privilege
+ at a time here.
+*****************************************************************************/
+
+BOOL user_has_any_privilege(NT_USER_TOKEN *token, const SE_PRIV *privilege)
+{
+ if ( !token )
+ return False;
+
+ return is_any_privilege_assigned( &token->privileges, privilege );
+}
+
+/****************************************************************************
+ Convert a LUID to a named string
+****************************************************************************/
+
+char* luid_to_privilege_name(const LUID *set)
+{
+ static fstring name;
+ int i;
+
+ if (set->high != 0)
+ return NULL;
+
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+ if ( set->low == privs[i].luid.low ) {
+ fstrcpy( name, privs[i].name );
+ return name;
+ }
+ }
+
+ return NULL;
+}
+
+/*******************************************************************
+ return the number of elements in the privlege array
+*******************************************************************/
+
+int count_all_privileges( void )
+{
+ static int count;
+
+ if ( count )
+ return count;
+
+ /* loop over the array and count it */
+ for ( count=0; !se_priv_equal(&privs[count].se_priv, &se_priv_end); count++ ) ;
+
+ return count;
+}
+
+/*******************************************************************
+*******************************************************************/
+
+BOOL se_priv_to_privilege_set( PRIVILEGE_SET *set, SE_PRIV *mask )
+{
+ int i;
+ uint32 num_privs = count_all_privileges();
+ LUID_ATTR luid;
+
+ luid.attr = 0;
+ luid.luid.high = 0;
+
+ for ( i=0; i<num_privs; i++ ) {
+ if ( !is_privilege_assigned(mask, &privs[i].se_priv) )
+ continue;
+
+ luid.luid = privs[i].luid;
+
+ if ( !privilege_set_add( set, luid ) )
+ return False;
+ }
+
+ return True;
+}
+
+/*******************************************************************
+*******************************************************************/
+
+static BOOL luid_to_se_priv( LUID *luid, SE_PRIV *mask )
+{
+ int i;
+ uint32 num_privs = count_all_privileges();
+
+ for ( i=0; i<num_privs; i++ ) {
+ if ( luid->low == privs[i].luid.low ) {
+ se_priv_copy( mask, &privs[i].se_priv );
+ return True;
+ }
+ }
+
+ return False;
+}
+
+/*******************************************************************
+*******************************************************************/
+
+BOOL privilege_set_to_se_priv( SE_PRIV *mask, PRIVILEGE_SET *privset )
+{
+ int i;
+
+ ZERO_STRUCTP( mask );
+
+ for ( i=0; i<privset->count; i++ ) {
+ SE_PRIV r;
+
+ /* sanity check for invalid privilege. we really
+ only care about the low 32 bits */
+
+ if ( privset->set[i].luid.high != 0 )
+ return False;
+
+ if ( luid_to_se_priv( &privset->set[i].luid, &r ) )
+ se_priv_add( mask, &r );
+ }
+
+ return True;
+}
+
/*******************************************************************
*******************************************************************/
BOOL grant_all_privileges( const DOM_SID *sid )
{
+ int i;
SE_PRIV mask;
+ uint32 num_privs = count_all_privileges();
- if (!se_priv_put_all_privileges(&mask)) {
- return False;
- }
+ se_priv_copy( &mask, &se_priv_none );
+ for ( i=0; i<num_privs; i++ ) {
+ se_priv_add(&mask, &privs[i].se_priv);
+ }
+
return grant_privilege( sid, &mask );
}
git.samba.org / gd / samba / .git / blobdiff