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/* Definitions for the filesystem control interface
Copyright (C) 1992,93,94,95,96,97, 2002,13 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>
/* When modifying this file in any way, please remember to keep
fsys_reply.defs up to date. */
/* Note that libdiskfs/start-translator-long.c depends silently on the
definition of fsys_startup below. */
#ifdef FSYS_IMPORTS
FSYS_IMPORTS
#endif
INTR_INTERFACE
/* Sent by filesystem on its bootstrap port upon startup.
REALNODE is the node this filesystem is the translator for,
opened with flags FLAGS (O_NOTRANS is assumed even if not
provided). */
routine fsys_startup (
bootstrap: mach_port_t;
RPT
openflags: int;
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_lookup (but O_CREAT and O_EXCL are not
meaningful). DO_RETRY, RETRY_NAME, and RESULT are as
for dir_lookup. 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. */
/* This is called by bootstrap translators to get the privileged host and device
master ports from the bootstrap filesystem. */
routine fsys_getpriv (
fsys: fsys_t;
RPT
out host_priv: mach_port_send_t;
out device_master: mach_port_send_t;
out fstask: mach_port_send_t);
/* This is called by the startup translator to provide the bootstrap filesystem
with proc and auth ports. */
routine fsys_init (
fsys: fsys_t;
sreplyport reply_port: sreply_port_t;
proc_server: mach_port_send_t;
auth_handle: auth_t);
/* Ask SERVER to provide fsys translation service for us. REQUESTOR is
the bootstrap port supplied to the original translator, and ARGV are
the command line arguments. If the recipient accepts the request, he
(or some delegate) should send fsys_startup to REQUESTOR to start the
filesystem up. */
routine fsys_forward (
server: mach_port_t;
RPT
requestor: mach_port_send_t;
argv: data_t);
/* Return the options describing the operation of the receiving
filesystem (sutiable for fsys_set_options). */
routine fsys_get_options (
server: fsys_t;
RPT
out options: data_t, dealloc);
/* Return any active child translators. NAMES is an argz vector
containing file names relative to the root of the translator.
CONTROLS is an array containing the corresponding control ports.
Note that translators are bound to nodes, and nodes can have zero
or more links in the file system, therefore there is no guarantee
that a translators name refers to an existing link in the file
system. */
routine fsys_get_children (
server: fsys_t;
RPT
out names: data_t;
out controls: portarray_t);
/* Return information about the source of the translator. If the
concept of a source is applicable, SOURCE should refer to the
source of the translator and should be a description considered
appropriate in the context of the translator. For example, if the
translator is a filesystem residing on a block device, then SOURCE
should be the file name of the underlying block device. */
routine fsys_get_source (
server: fsys_t;
RPT
out source: string_t);
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