1 /* $NetBSD: dm_component.c,v 1.2 2016/01/26 23:12:15 pooka Exp $ */
2
3 /*
4 * Copyright (c) 2009 Antti Kantee. All Rights Reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: dm_component.c,v 1.2 2016/01/26 23:12:15 pooka Exp $");
30
31 #include <sys/param.h>
32 #include <sys/conf.h>
33 #include <sys/device.h>
34 #include <sys/stat.h>
35 #include <sys/filedesc.h>
36
37 #include <sys/vfs_syscalls.h>
38
39 #include <rump-sys/kern.h>
40 #include <rump-sys/vfs.h>
41
RUMP_COMPONENT(RUMP_COMPONENT_DEV)42 RUMP_COMPONENT(RUMP_COMPONENT_DEV)
43 {
44 extern const struct bdevsw dm_bdevsw;
45 extern const struct cdevsw dm_cdevsw;
46 devmajor_t bmaj, cmaj;
47 int error;
48
49 /* go, mydevfs */
50 bmaj = cmaj = -1;
51
52 if ((error = devsw_attach("dm", &dm_bdevsw, &bmaj,
53 &dm_cdevsw, &cmaj)) != 0)
54 panic("cannot attach dm: %d", error);
55
56 do_sys_mkdir("/dev/mapper", 0770, UIO_SYSSPACE);
57
58 if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/mapper/control", 0,
59 cmaj, 0, 1)) != 0) {
60 panic("cannot create device-mapper control device: %d", error);
61
62 }
63 }
64