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/* @(#)loadable_fs.h 2.0 26/06/90 (c) 1990 NeXT */
/*
* loadable_fs.h - message struct for loading and initializing loadable
* file systems.
*
* HISTORY
* 26-Jun-90 Doug Mitchell at NeXT
* Created.
* 5-Nov-91 Lee Boynton at NeXT
* Added support for initialization, labels, and WSM options
*/
#ifndef _LOADABLE_FS_
#define _LOADABLE_FS_
#import <mach/message.h>
/*
* This message is used in an RPC between a lightweight app and a loaded
* kernel server.
*/
struct load_fs_msg {
msg_header_t lfm_header;
msg_type_t lfm_status_t;
unsigned int lfm_status; /* status returned by server */
};
/*
* msg_id values for load_fs_msg
*/
#define LFM_ID 0x123456 /* base */
#define LFM_DUMP_MOUNT (LFM_ID+1) /* dump active FS and VNODE
* list */
#define LFM_TERMINATE (LFM_ID+2) /* terminate */
#define LFM_PURGE (LFM_ID+3) /* purge all vnodes except
* root */
#define LFM_DUMP_LOCAL (LFM_ID+4) /* dump local FS info */
#define LFM_ENABLE_TRACE (LFM_ID+5) /* enable debug trace */
#define LFM_DISABLE_TRACE (LFM_ID+6) /* disable debug trace */
/*
* lfm_stat values
*/
#define LFM_STAT_GOOD 0 /* file system loaded OK */
#define LFM_STAT_NOSPACE 1 /* no space in vfssw */
#define LFM_STAT_BADMSG 2 /* bad message received */
#define LFM_STAT_UNDEFINED 3
/*
* Constants for Loadabls FS Utilities (in "/usr/FileSystems")
*
* Example of a /usr/filesystems directory
*
* /usr/filesystems/dos.fs/dos.util utility with which WSM
* communicates
* /usr/filesystems/dos.fs/dos.name "DOS Floppy"
* /usr/filesystems/dos.fs/dos_reloc actual loadable filesystem
* /usr/filesystems/dos.fs/dos.openfs.tiff "open folder" icon
* /usr/filesystems/dos.fs/dos.fs.tiff "closed folder" icon
*/
#define FS_DIR_LOCATION "/usr/filesystems"
#define FS_DIR_SUFFIX ".fs"
#define FS_UTIL_SUFFIX ".util"
#define FS_OPEN_SUFFIX ".openfs.tiff"
#define FS_CLOSED_SUFFIX ".fs.tiff"
#define FS_NAME_SUFFIX ".name"
#define FS_LABEL_SUFFIX ".label"
/*
* .util program commands - all sent in the form "-p" or "-m" ... as argv[1].
*/
#define FSUC_PROBE 'p' /* probe FS for mount or init */
/* example usage: foo.util -p fd0 removable writable */
#define FSUC_PROBEFORINIT 'P' /* probe FS for init only */
/* example usage: foo.util -P fd0 removable */
#define FSUC_MOUNT 'm' /* mount FS */
/* example usage: foo.util -m fd0 /bar removable writable */
#define FSUC_REPAIR 'r' /* repair ('fsck') FS */
/* example usage: foo.util -r fd0 removable */
#define FSUC_INITIALIZE 'i' /* initialize FS */
/* example usage: foo.util -i fd0 removable */
#define FSUC_UNMOUNT 'u' /* unmount FS */
/* example usage: foo.util -u fd0 /bar */
/* The following is not used by Workspace Manager */
#define FSUC_MOUNT_FORCE 'M' /* like FSUC_MOUNT, but proceed even on
* error. */
/*
* Return codes from .util program
*/
#define FSUR_RECOGNIZED (-1) /* response to FSUC_PROBE; implies that
* a mount is possible */
#define FSUR_UNRECOGNIZED (-2) /* negative response to FSUC_PROBE */
#define FSUR_IO_SUCCESS (-3) /* mount, unmount, repair succeeded */
#define FSUR_IO_FAIL (-4) /* unrecoverable I/O error */
#define FSUR_IO_UNCLEAN (-5) /* mount failed, file system not clean
*/
#define FSUR_INVAL (-6) /* invalid argument */
#define FSUR_LOADERR (-7) /* kern_loader error */
#define FSUR_INITRECOGNIZED (-8) /* response to FSUC_PROBE or
* FSUC_PROBEFORINIT, implies that
* initialization is possible */
/*
* mount parameters passed from WSM to the .util program.
*/
#define DEVICE_READONLY "readonly"
#define DEVICE_WRITABLE "writable"
#define DEVICE_REMOVABLE "removable"
#define DEVICE_FIXED "fixed"
/*
* Additional parameters to the mount command - used by WSM when they
* appear in the /etc/mtab file.
*/
#define MNTOPT_FS "filesystem=" /* e.g. "filesystem=DOS" */
#define MNTOPT_REMOVABLE "removable"
#endif
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