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/*
Copyright (C) 1994 Free Software Foundation
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 "ufs.h"
#include <stdarg.h>
#include <stdio.h>
#include <device/device.h>
#include <hurd/startup.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
char *ufs_version = "0.0 pre-alpha";
/* Parse the arguments for ufs when started as a translator. */
char *
trans_parse_args (int argc, char **argv)
{
char *devname;
/* When started as a translator, we are called with
the device name and an optional argument -r, which
signifies read-only. */
if (argc < 2 || argc > 3)
exit (1);
if (argc == 2)
devname = argv[1];
else if (argc == 3)
{
if (argv[1][0] == '-' && argv[1][1] == 'r')
{
diskfs_readonly = 1;
devname = argv[2];
}
else if (argv[2][0] == '-' && argv[2][1] == 'r')
{
diskfs_readonly = 1;
devname = argv[1];
}
else
exit (1);
}
return devname;
}
struct node *diskfs_root_node;
/* Set diskfs_root_node to the root inode. */
static void
warp_root (void)
{
error_t err;
err = iget (2, &diskfs_root_node);
assert (!err);
mutex_unlock (&diskfs_root_node->lock);
}
/* XXX */
struct mutex printf_lock;
int printf (const char *fmt, ...)
{
va_list arg;
int done;
va_start (arg, fmt);
mutex_lock (&printf_lock);
done = vprintf (fmt, arg);
mutex_unlock (&printf_lock);
va_end (arg);
return done;
}
int diskfs_readonly;
void
main (int argc, char **argv)
{
char *devname;
mach_port_t bootstrap;
error_t err;
int sizes[DEV_GET_SIZE_COUNT];
u_int sizescnt = 2;
mutex_init (&printf_lock); /* XXX */
if (getpid () > 0)
{
/* We are in a normal Hurd universe, started as a translator. */
devname = trans_parse_args (argc, argv);
{
/* XXX let us see errors */
int fd = open ("/dev/console", O_RDWR);
assert (fd == 0);
fd = dup (0);
assert (fd == 1);
fd = dup (1);
assert (fd == 2);
}
}
else
{
/* We are the bootstrap filesystem. */
devname = diskfs_parse_bootargs (argc, argv);
compat_mode = COMPAT_GNU;
}
task_get_bootstrap_port (mach_task_self (), &bootstrap);
/* Initialize the diskfs library. This must come before
any other diskfs call. */
diskfs_init_diskfs ();
err = device_open (diskfs_master_device,
(diskfs_readonly ? 0 : D_WRITE) | D_READ,
devname, &ufs_device);
assert (!err);
/* Check to make sure device sector size is reasonable. */
err = device_get_status (ufs_device, DEV_GET_SIZE, sizes, &sizescnt);
assert (sizescnt == DEV_GET_SIZE_COUNT);
if (sizes[DEV_GET_SIZE_RECORD_SIZE] != DEV_BSIZE)
{
fprintf (stderr, "Bad device record size %d (should be %d)\n",
sizes[DEV_GET_SIZE_RECORD_SIZE], DEV_BSIZE);
exit (1);
}
diskpagersize = sizes[DEV_GET_SIZE_DEVICE_SIZE];
assert (diskpagersize >= SBSIZE + SBOFF);
/* Map the entire disk. */
create_disk_pager ();
/* Start the first request thread, to handle RPCs and page requests. */
diskfs_spawn_first_thread ();
err = vm_map (mach_task_self (), (vm_address_t *)&disk_image,
diskpagersize, 0, 1, diskpagerport, 0, 0,
VM_PROT_READ | (diskfs_readonly ? 0 : VM_PROT_WRITE),
VM_PROT_READ | (diskfs_readonly ? 0 : VM_PROT_WRITE),
VM_INHERIT_NONE);
assert (!err);
get_hypermetadata ();
if (diskpagersize < sblock->fs_size * sblock->fs_fsize)
{
fprintf (stderr,
"Disk size (%d) less than necessary "
"(superblock says we need %ld)\n",
sizes[DEV_GET_SIZE_DEVICE_SIZE],
sblock->fs_size * sblock->fs_fsize);
exit (1);
}
vm_allocate (mach_task_self (), &zeroblock, sblock->fs_bsize, 1);
/* If the filesystem has new features in it, don't pay attention to
the user's request not to use them. */
if ((sblock->fs_inodefmt == FS_44INODEFMT
|| direct_symlink_extension)
&& compat_mode == COMPAT_BSD42)
/* XXX should syslog to this effect */
compat_mode = COMPAT_BSD44;
if (!diskfs_readonly)
{
sblock->fs_clean = 0;
strcpy (sblock->fs_fsmnt, "Hurd /"); /* XXX */
sblock_dirty = 1;
diskfs_set_hypermetadata (1, 0);
}
inode_init ();
/* Find our root node. */
warp_root ();
/* Now that we are all set up to handle requests, and diskfs_root_node is
set properly, it is safe to export our fsys control port to the
outside world. */
(void) diskfs_startup_diskfs (bootstrap);
if (bootstrap == MACH_PORT_NULL)
/* We are the bootstrap filesystem; do special boot-time setup. */
diskfs_start_bootstrap (argv);
/* Now become a generic request thread. */
diskfs_main_request_loop ();
}
void
diskfs_init_completed ()
{
mach_port_t proc, startup;
error_t err;
proc = getproc ();
proc_register_version (proc, diskfs_host_priv, "ufs", HURD_RELEASE,
ufs_version);
err = proc_getmsgport (proc, 1, &startup);
if (!err)
{
startup_essential_task (startup, mach_task_self (), MACH_PORT_NULL,
"ufs", diskfs_host_priv);
mach_port_deallocate (mach_task_self (), startup);
}
mach_port_deallocate (mach_task_self (), proc);
}
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