6e9039bb08
fs/userfs: This completes coding of the UserFS client and of the UserFS feature in general. This feature is being merged to main now because I believe it is innocuous. It is, however, untesed. The next step will be to develop a test case to verify the feature.
fs/userfs: Completes the request logic for the UserFS client. Still need the logic that receives the responses.
fs/userfs: Completes coding for most of the server side of the user filesystem logic.
fs/userfs: Big design changes, simplications. Use Unix domain local sockets instead of message queues. Easier to transfer big data in local sockets than message queues. Remove character drvier 'factory' it is not necessary.
fs/userfs: Minor reparitioning; volume private info does not need to be held on the OS client side.
libc/userfs: Add some of the server side logic.
fs/userfs: Add some UserFS initialization logic.
fs/userfs: Add frame work for the UserFS proxy. Remove all references to a block driver. There is no block dricer... what was I thinking?
fs/userfs: Add some initialization of the character driver, 'factory' device.
fs/userfs: Rename from fusefs to userfs to that we don't stomp on someone else's cool name.
Add a header file describing the fusefs interface.
152 lines
5.7 KiB
C
152 lines
5.7 KiB
C
/****************************************************************************
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* include/sys/statfs.h
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*
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* Copyright (C) 2007-2009, 2011-2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_SYS_STATFS_H
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#define __INCLUDE_SYS_STATFS_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* struct statfs file system types. */
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#define ADFS_SUPER_MAGIC 0xadf5
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#define AFFS_SUPER_MAGIC 0xadff
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#define BEFS_SUPER_MAGIC 0x42465331
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#define BFS_MAGIC 0x1badface
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#define CIFS_MAGIC_NUMBER 0xff534d42
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#define CODA_SUPER_MAGIC 0x73757245
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#define COH_SUPER_MAGIC 0x012ff7b7
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#define CRAMFS_MAGIC 0x28cd3d45
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#define DEVFS_SUPER_MAGIC 0x1373
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#define EFS_SUPER_MAGIC 0x00414a53
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#define EXT_SUPER_MAGIC 0x137d
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#define EXT2_OLD_SUPER_MAGIC 0xef51
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#define EXT2_SUPER_MAGIC 0xef53
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#define EXT3_SUPER_MAGIC 0xef53
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#define HFS_SUPER_MAGIC 0x4244
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#define HPFS_SUPER_MAGIC 0xf995e849
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#define HUGETLBFS_MAGIC 0x958458f6
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#define ISOFS_SUPER_MAGIC 0x9660
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#define JFFS2_SUPER_MAGIC 0x72b6
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#define JFS_SUPER_MAGIC 0x3153464a
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#define MINIX_SUPER_MAGIC 0x137f /* orig. minix */
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#define MINIX_SUPER_MAGIC2 0x138f /* 30 char minix */
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#define MINIX2_SUPER_MAGIC 0x2468 /* minix V2 */
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#define MINIX2_SUPER_MAGIC2 0x2478 /* minix V2, 30 char names */
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#define MSDOS_SUPER_MAGIC 0x4d44
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#define NCP_SUPER_MAGIC 0x564c
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#define NFS_SUPER_MAGIC 0x6969
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#define NTFS_SB_MAGIC 0x5346544e
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#define OPENPROM_SUPER_MAGIC 0x9fa1
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#define PROC_SUPER_MAGIC 0x9fa0
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#define QNX4_SUPER_MAGIC 0x002f
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#define REISERFS_SUPER_MAGIC 0x52654973
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#define ROMFS_MAGIC 0x7275
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#define SMB_SUPER_MAGIC 0x517B
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#define SYSV2_SUPER_MAGIC 0x012ff7b6
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#define SYSV4_SUPER_MAGIC 0x012FF7B5
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#define TMPFS_MAGIC 0x01021994
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#define UDF_SUPER_MAGIC 0x15013346
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#define UFS_MAGIC 0x00011954
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#define USBDEVICE_SUPER_MAGIC 0x9fa2
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#define VXFS_SUPER_MAGIC 0xa501fcf5
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#define XENIX_SUPER_MAGIC 0x012ff7b4
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#define XFS_SUPER_MAGIC 0x58465342
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#define _XIAFS_SUPER_MAGIC 0x012fd16d
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/* NuttX specific file-systems */
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#define BINFS_MAGIC 0x4242
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#define PROCFS_MAGIC 0x434f5250
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#define NXFFS_MAGIC 0x4747
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#define SMARTFS_MAGIC 0x54524D53
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#define UNIONFS_MAGIC 0x53464e55
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#define HOSTFS_MAGIC 0x54534f48
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#define USERFS_MAGIC 0x52455355
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/****************************************************************************
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* Type Definitions
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****************************************************************************/
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struct statfs
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{
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uint32_t f_type; /* Type of filesystem (see definitions above) */
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size_t f_namelen; /* Maximum length of filenames */
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size_t f_bsize; /* Optimal block size for transfers */
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off_t f_blocks; /* Total data blocks in the file system of this size */
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off_t f_bfree; /* Free blocks in the file system */
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off_t f_bavail; /* Free blocks avail to non-superuser */
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off_t f_files; /* Total file nodes in the file system */
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off_t f_ffree; /* Free file nodes in the file system */
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/* Inspired by Linux statfs() which was, in turn, inspired by
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* the BSD statfs(). None of these implementations agree in the
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* form of the struct statfs.
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*/
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int statfs(FAR const char *path, FAR struct statfs *buf);
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int fstatfs(int fd, FAR struct statfs *buf);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __INCLUDE_SYS_STATFS_H */
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