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/* Private definitions for the mount server
Copyright (C) 1996 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
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 the Free Software Foundation; either version 2, or (at
your option) any later version.
This program 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; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <hurd/ports.h>
#include "mount_types.h"
/* A particular mount of a filesystem. */
struct mount
{
struct port_info pi; /* libports header. */
/* The filesystem this a mount of. */
struct mount_fsys *fsys;
/* Modes of this mount, from the set MOUNT_READ, MOUNT_WRITE, &c. */
int mode;
/* The filesystem control port for its translator. This may
MACH_PORT_NULL, in which case it's not actually a filesystem (maybe it's
a fsck or something). */
fsys_t translator;
/* A timestamp associated with TRANSLATOR, used to validate state if the
mount server is restarted. */
struct timespec timestamp;
/* The place in the filesystem where this filesystem is mounted, using the
mount server's root node. */
char *mount_point;
/* The next mount of this filesystem. */
struct mount *next;
};
struct mount_fsys
{
/* A string identifying the `backing store' associated with this
filesystem, who's interpretation depends on KEY_CLASS:
MOUNT_KEY_UNKNOWN -- no interpretation, just a string
MOUNT_KEY_FILE -- KEY is a filename
MOUNT_KEY_DEVICE -- KEY is a (mach) device name
No two filesystems can have the same KEY and KEY_CLASS. */
char *key;
enum mount_key_class key_class;
/* In what condition we think the filesystem is. */
enum mount_state state;
/* How this file system deals with multiple mount requests. */
enum mount_excl excl;
/* Active mounts of this filesystem. */
struct mount *mounts;
};
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