xref: /netbsd-src/sys/rump/dev/lib/libdm/dm_component.c (revision 6bb51422881aa32822c80737814503e72f496e36)

/*	$NetBSD: dm_component.c,v 1.2 2016/01/26 23:12:15 pooka Exp $	*/

/*
 * Copyright (c) 2009 Antti Kantee.  All Rights Reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: dm_component.c,v 1.2 2016/01/26 23:12:15 pooka Exp $");

#include <sys/param.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/stat.h>
#include <sys/filedesc.h>

#include <sys/vfs_syscalls.h>

#include <rump-sys/kern.h>
#include <rump-sys/vfs.h>

RUMP_COMPONENT(RUMP_COMPONENT_DEV)
{
	extern const struct bdevsw dm_bdevsw;
	extern const struct cdevsw dm_cdevsw;
	devmajor_t bmaj, cmaj;
	int error;

	/* go, mydevfs */
	bmaj = cmaj = -1;

	if ((error = devsw_attach("dm", &dm_bdevsw, &bmaj,
	    &dm_cdevsw, &cmaj)) != 0)
		panic("cannot attach dm: %d", error);

	do_sys_mkdir("/dev/mapper", 0770, UIO_SYSSPACE);

	if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/mapper/control", 0,
		    cmaj, 0, 1)) != 0) {
		panic("cannot create device-mapper control device: %d", error);

	}
}