/* Definitions for the filesystem control interface
   Copyright (C) 1992, 1993, 1994 Free Software Foundation

This file is part of the GNU Hurd.

The GNU Hurd 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.

The GNU Hurd 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 the GNU Hurd; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

subsystem fsys 22000;

#include <hurd/hurd_types.defs>

#ifdef FSYS_IMPORTS
FSYS_IMPORTS
#endif

/* Sent by filesystem on its bootstrap port upon startup.
   REALNODE is the node this filesystem is the translator for,
   with all permissions.  */
routine fsys_startup (
	bootstrap: mach_port_t;
	RPT
	control_port: mach_port_send_t;
	out realnode: mach_port_send_t);

/* Filesystem should go away.  Bye.  */
routine fsys_goaway (
	fsys: fsys_t;
	RPT
	flags: int);

/* Return a file to the root of the filesystem.
   FLAGS are as for dir_pathtrans (but O_CREAT and O_EXCL are not
   meaningful).  DO_RETRY, RETRY_NAME, and RESULT are as
   for dir_pathtrans.  The port should be authenticated with GEN_UIDS
   and GEN_GIDS (except, of course, for FS_RETRY_REAUTH and 
   FS_RETRY_MAGICAL).  DOTDOT_NODE is an unauthenticated port for the
   directory in which this root is located.  */ 
routine fsys_getroot(
	fsys: fsys_t;
	RPT
#ifdef	FSYS_GETROOT_UREPLY
	ureplyport ureply: mig_reply_port_t;
#endif
	dotdot_node: mach_port_send_t;
	gen_uids: idarray_t;
	gen_gids: idarray_t;
	flags: int;
	out do_retry: retry_type;
	out retry_name: string_t;
	out file: mach_port_send_t);

/* Get a file given a file handle (see file_getfh).  */
routine fsys_getfile (
	fsys: fsys_t;
	RPT
	gen_uids: idarray_t;
	gen_gids: idarray_t;
	filehandle: data_t;
	out file: mach_port_send_t);

/* Sync a filesystem.  Args are the same as for file_syncfs in fs.defs. */
routine fsys_syncfs (
	fsys: fsys_t;
	RPT
	wait: int;
	do_children: int);

/* Pass a server-specific options string.  This usually includes flags
   similar to command line options, e.g., --readonly, or --sync=30.  */ 
routine fsys_set_options (
	fsys: fsys_t;
	RPT
        options: data_t;
	do_children: int);

/* The following two calls are only implemented by bootstrap filesystems. */

routine fsys_getpriv (
	fsys: fsys_t;
	RPT
	out host_priv: mach_port_t;
	out device_master: mach_port_t;
	out fstask: task_t);

routine fsys_init (
	fsys: fsys_t;
	sreplyport reply_port: sreply_port_t;
	proc_server: mach_port_send_t;
	auth_handle: auth_t);