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/*
Copyright (C) 2017 Free Software Foundation, Inc.
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. If not, see <<a rel="nofollow" href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>>.
*/
/* Translator initialization and demuxing */
#include <stdio.h>
#include <error.h>
#include <fcntl.h>
#include <version.h>
#include <argp.h>
#include <hurd/netfs.h>
#include <hurd/fsys.h>
#include <hurd/startup.h>
#include <hurd/paths.h>
#include "acpi_S.h"
#include "startup_notify_S.h"
#include "libnetfs/io_S.h"
#include "libnetfs/fs_S.h"
#include "libports/notify_S.h"
#include "libnetfs/fsys_S.h"
#include "libports/interrupt_S.h"
#include "libnetfs/ifsock_S.h"
#include <device/device.h>
#include <pthread.h>
#include <acpi/acpi_init.h>
#include <acpifs.h>
/* Libnetfs stuff */
int netfs_maxsymlinks = 0;
char *netfs_server_name = "acpi";
char *netfs_server_version = HURD_VERSION;
volatile struct mapped_time_value *acpifs_maptime;
struct acpifs *fs;
static mach_port_t acpi_control_port;
struct port_class *acpi_shutdown_notify_class;
error_t
S_startup_dosync (mach_port_t notify_port)
{
/* Nothing to sync */
return 0;
}
static void
essential_task (void)
{
mach_port_t host, startup;
error_t err;
err = get_privileged_ports (&host, 0);
if (err)
{
mach_print ("WARNING: acpi cannot register as essential task\n");
return;
}
startup = file_name_lookup (_SERVERS_STARTUP, 0, 0);
if (startup == MACH_PORT_NULL)
{
mach_print ("WARNING: acpi cannot register as essential task\n");
mach_port_deallocate (mach_task_self (), host);
return;
}
startup_essential_task (startup, mach_task_self (), MACH_PORT_NULL,
program_invocation_short_name, host);
mach_port_deallocate (mach_task_self (), startup);
mach_port_deallocate (mach_task_self (), host);
}
static void
arrange_shutdown_notification (void)
{
error_t err;
mach_port_t initport, notify;
struct port_info *pi;
acpi_shutdown_notify_class = ports_create_class (0, 0);
/* Arrange to get notified when the system goes down */
err = ports_create_port (acpi_shutdown_notify_class, netfs_port_bucket,
sizeof (struct port_info), &pi);
if (err)
return;
initport = file_name_lookup (_SERVERS_STARTUP, 0, 0);
if (initport == MACH_PORT_NULL)
{
mach_print ("WARNING: acpi not registered for shutdown\n");
return;
}
notify = ports_get_send_right (pi);
ports_port_deref (pi);
startup_request_notification (initport, notify,
MACH_MSG_TYPE_MAKE_SEND,
program_invocation_short_name);
mach_port_deallocate (mach_task_self (), notify);
mach_port_deallocate (mach_task_self (), initport);
}
int
netfs_demuxer (mach_msg_header_t * inp, mach_msg_header_t * outp)
{
mig_routine_t routine;
if ((routine = netfs_io_server_routine (inp)) ||
(routine = netfs_fs_server_routine (inp)) ||
(routine = ports_notify_server_routine (inp)) ||
(routine = netfs_fsys_server_routine (inp)) ||
(routine = ports_interrupt_server_routine (inp)) ||
(routine = netfs_ifsock_server_routine (inp)) ||
(routine = acpi_server_routine (inp)) ||
(routine = startup_notify_server_routine (inp)))
{
(*routine) (inp, outp);
return TRUE;
}
else
return FALSE;
}
static mach_port_t
acpifs_startup(mach_port_t bootstrap, int flags)
{
error_t err;
mach_port_t realnode;
struct port_info *newpi;
err = ports_create_port (netfs_control_class, netfs_port_bucket,
sizeof (struct port_info), &newpi);
if (err)
error (11, err, "Translator startup failure: acpifs_startup");
acpi_control_port = ports_get_send_right (newpi);
err = fsys_startup (bootstrap, flags, acpi_control_port, MACH_MSG_TYPE_COPY_SEND,
&realnode);
assert_perror_backtrace (err);
essential_task();
arrange_shutdown_notification();
return realnode;
}
int
main (int argc, char **argv)
{
error_t err;
mach_port_t bootstrap;
file_t underlying_node = MACH_PORT_NULL;
/* Parse options */
alloc_file_system (&fs);
argp_parse (netfs_runtime_argp, argc, argv, 0, 0, 0);
task_get_bootstrap_port (mach_task_self (), &bootstrap);
if (bootstrap == MACH_PORT_NULL)
error (1, 0, "must be started as a translator");
/* Initialize netfs and start the translator. */
netfs_init ();
err = maptime_map (0, 0, &acpifs_maptime);
if (err)
err = maptime_map (1, 0, &acpifs_maptime);
if (err)
error (1, err, "mapping time");
underlying_node = netfs_startup (bootstrap, O_READ);
/* Create the root node first */
err = init_root_node (underlying_node);
if (err)
error (1, err, "creating the root node");
err = init_file_system (fs);
if (err)
error (1, err, "creating the ACPI filesystem");
/* Create the filesystem tree */
err = create_fs_tree (fs);
if (err)
error (1, err, "creating the ACPI filesystem tree");
/* Set permissions */
err = fs_set_permissions (fs);
if (err)
error (1, err, "setting permissions");
/* Enable ACPI mode of machine */
acpi_init ();
acpifs_startup (bootstrap, O_READ);
netfs_server_loop (); /* Never returns. */
return 0;
}
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