NetBSD/sys/lkm/vfs/coda/lkminit_vfs.c

131 lines
3.7 KiB
C

/* $NetBSD: lkminit_vfs.c,v 1.2 2000/03/21 11:45:58 simonb Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Michael Graff <explorer@flame.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/exec.h>
#include <sys/lkm.h>
#include <sys/file.h>
#include <sys/errno.h>
#include <coda/coda_psdev.h>
int coda_lkmentry __P((struct lkm_table *, int, int));
/*
* This is the vfsops table for the file system in question
*/
extern struct vfsops coda_vfsops;
/*
* declare the filesystem
*/
/*
MOD_VFS("coda", -1, &coda_vfsops);
*/
struct lkm_vfs coda_lkm_vfs = {
LM_VFS, LKM_VERSION, "coda", -1, (void *)&coda_vfsops};
/*
* declare up/down call device
*/
struct cdevsw codadevsw = {
vc_nb_open, /* open */
vc_nb_close, /* close */
vc_nb_read, /* read */
vc_nb_write, /* write */
vc_nb_ioctl, /* ioctl */
0, /* stop */
0, /* tty */
vc_nb_poll, /* poll */
0, /* mmap */
};
/*
MOD_DEV("codadev", LM_DT_CHAR, 60, &codadevsw);
*/
struct lkm_dev coda_lkm_dev = {
LM_DEV, LKM_VERSION, "codadev", 60, LM_DT_CHAR,
{ (void *) &codadevsw }
};
/*
* entry point
*/
int
coda_lkmentry(lkmtp, cmd, ver)
struct lkm_table *lkmtp;
int cmd;
int ver;
{
int error = 0;
if (ver != LKM_VERSION)
return EINVAL;
switch (cmd) {
case LKM_E_LOAD:
lkmtp->private.lkm_any = (struct lkm_any *) &coda_lkm_dev;
error = lkmdispatch(lkmtp, cmd);
if (error)
break;
lkmtp->private.lkm_any = (struct lkm_any *) &coda_lkm_vfs ;
error = lkmdispatch(lkmtp, cmd);
break;
case LKM_E_UNLOAD:
lkmtp->private.lkm_any = (struct lkm_any *) &coda_lkm_vfs ;
error = lkmdispatch(lkmtp, cmd);
if (error)
break;
lkmtp->private.lkm_any = (struct lkm_any *) &coda_lkm_dev;
error = lkmdispatch(lkmtp, cmd);
break;
case LKM_E_STAT:
error = lkmdispatch(lkmtp, cmd);
break;
}
return error;
}