* param.h - Parameter values for ntfs-3g
*
* Copyright (c) 2009-2010 Jean-Pierre Andre
*
* This program/include file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program/include file is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (in the main directory of the NTFS-3G
* distribution in the file COPYING); if not, write to the Free Software
* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _NTFS_PARAM_H
#define _NTFS_PARAM_H
#define CACHE_INODE_SIZE 32 /* inode cache, zero or >= 3 and not too big */
#define CACHE_NIDATA_SIZE 64 /* idata cache, zero or >= 3 and not too big */
#define CACHE_LOOKUP_SIZE 64 /* lookup cache, zero or >= 3 and not too big */
#define CACHE_SECURID_SIZE 16 /* securid cache, zero or >= 3 and not too big */
#define CACHE_LEGACY_SIZE 8 /* legacy cache size, zero or >= 3 and not too big */
#define FORCE_FORMAT_v1x 0 /* Insert security data as in NTFS v1.x */
#define OWNERFROMACL 1 /* Get the owner from ACL (not Windows owner) */
enum {
DEFSECAUTH1 = -1153374643,
DEFSECAUTH2 = 589793238,
DEFSECAUTH3 = 462843383,
DEFSECBASE = 10000
};
* Parameters for formatting
*/
#define NTFS_MAX_CLUSTER_SIZE 2097152 /* Windows 10 Creators allows 2MB */
* Parameters for compression
*/
#define DEFAULT_COMPRESSION 1
#define STANDARD_COMPRESSION_UNIT 4
#define MAX_COMPRESSION_CLUSTER_SIZE 4096
* Parameters for default options
*/
#define DEFAULT_DMTIME 60 /* default 1mn for delay_mtime */
* Use of big write buffers
*
* With small volumes, the cluster allocator may fail to allocate
* enough clusters when the volume is nearly full. At most a run
* can be allocated per bitmap chunk. So, there is a danger when the
* number of chunks (capacity/(32768*clsiz)) is less than the number
* of clusters in the biggest write buffer (131072/clsiz). Hence
* a safe minimal capacity is 4GB
*/
#define SAFE_CAPACITY_FOR_BIG_WRITES 0x100000000LL
* Parameters for runlists
*/
#define PARTIAL_RUNLIST_UPDATING 1
* Parameters for upper-case table
*/
#define UPCASE_MAJOR 6
#define UPCASE_MINOR 1
* Parameters for user and xattr mappings
*/
#define XATTRMAPPINGFILE ".NTFS-3G/XattrMapping" /* default mapping file */
* Parameters for path canonicalization
*/
#define MAPPERNAMELTH 256
* Permission checking modes for high level and low level
*
* The choices for high and low lowel are independent, they have
* no effect on the library
*
* Stick to the recommended values unless you understand the consequences
* on protection and performances. Use of cacheing is good for
* performances, but bad on security with internal fuse or external
* fuse older than 2.8
*
* On Linux, cacheing is discouraged for the high level interface
* in order to get proper support of hard links. As a consequence,
* having access control in the file system leads to fewer requests
* to the file system and fewer context switches.
*
* Irrespective of the selected mode, cacheing is always used
* in read-only mounts
*
* Possible values for high level :
* 1 : no cache, kernel control (recommended)
* 4 : no cache, file system control
* 6 : kernel/fuse cache, file system control (OpenIndiana only)
* 7 : no cache, kernel control for ACLs
*
* Possible values for low level :
* 2 : no cache, kernel control
* 3 : use kernel/fuse cache, kernel control (recommended)
* 5 : no cache, file system control
* 6 : kernel/fuse cache, file system control (OpenIndiana only)
* 8 : no cache, kernel control for ACLs
* 9 : kernel/fuse cache, kernel control for ACLs (target)
*
* Use of options 7, 8 and 9 requires a fuse module upgrade
* When Posix ACLs are selected in the configure options, a value
* of 6 is added in the mount report.
*/
#define TIMEOUT_RO 600 /* Attribute time out for read-only mounts */
#if defined(__sun) && defined(__SVR4)
* Access control by kernel is not implemented on OpenIndiana,
* however care is taken of cacheing hard-linked files.
*/
#define HPERMSCONFIG 6
#define LPERMSCONFIG 6
#else
* Cacheing by kernel is buggy on Linux when access control is done
* by the file system, and also when using hard-linked files on
* the fuse high level interface.
* Also ACL checks by recent kernels do not prove satisfactory.
*/
#define HPERMSCONFIG 1
#define LPERMSCONFIG 3
#endif
#endif
