mount.h

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/*-
 * Copyright (c) 2002-2018 The UbixOS Project.
 * All rights reserved.
 *
 * This was developed by Christopher W. Olsen for the UbixOS Project.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
 *
 * 1) Redistributions of source code must retain the above copyright notice, this list of
 *    conditions, the following disclaimer and the list of authors.
 * 2) Redistributions in binary form must reproduce the above copyright notice, this list of
 *    conditions, the following disclaimer and the list of authors in the documentation and/or
 *    other materials provided with the distribution.
 * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to
 *    endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef _MOUNT_H
#define _MOUNT_H
 
#include <sys/types.h>
 
#define MFSNAMELEN      16              /* length of type name including null */
#define MNAMELEN        88              /* size of on/from name bufs */
 
typedef struct fsid {
    int32_t val[2];
} fsid_t; /* filesystem id type */
 
struct statfs {
    uint32_t f_version; /* structure version number */
    uint32_t f_type; /* type of filesystem */
    u_int64_t f_flags; /* copy of mount exported flags */
    u_int64_t f_bsize; /* filesystem fragment size */
    u_int64_t f_iosize; /* optimal transfer block size */
    u_int64_t f_blocks; /* total data blocks in filesystem */
    u_int64_t f_bfree; /* free blocks in filesystem */
    int64_t f_bavail; /* free blocks avail to non-superuser */
    u_int64_t f_files; /* total file nodes in filesystem */
    int64_t f_ffree; /* free nodes avail to non-superuser */
    u_int64_t f_syncwrites; /* count of sync writes since mount */
    u_int64_t f_asyncwrites; /* count of async writes since mount */
    u_int64_t f_syncreads; /* count of sync reads since mount */
    u_int64_t f_asyncreads; /* count of async reads since mount */
    u_int64_t f_spare[10]; /* unused spare */
    uint32_t f_namemax; /* maximum filename length */
    uid_t f_owner; /* user that mounted the filesystem */
    fsid_t f_fsid; /* filesystem id */
    char f_charspare[80]; /* spare string space */
    char f_fstypename[MFSNAMELEN]; /* filesystem type name */
    char f_mntfromname[MNAMELEN]; /* mounted filesystem */
    char f_mntonname[MNAMELEN]; /* directory on which mounted */
};
 
struct vfs_mountPoint {
    struct vfs_mountPoint *prev;
    struct vfs_mountPoint *next;
    struct fileSystem *fs;
    struct device_node *device;
    struct ubixDiskLabel *diskLabel;
    void *fsInfo;
    int partition;
    char mountPoint[1024];
    char perms;
};
 
int vfs_mount(int major, int minor, int partition, int fsType, char *mountPoint, char *perms);
int vfs_addMount(struct vfs_mountPoint *mp);
struct vfs_mountPoint *vfs_findMount(char *mountPoint);
 
#endif
 
/***
 END
 ***/