1 /* $NetBSD: dm_component.c,v 1.1 2014/03/13 01:54:22 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 1.1 2014/03/13 01:54:22 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_private.h" 40 #include "rump_dev_private.h" 41 #include "rump_vfs_private.h" 42 43 RUMP_COMPONENT(RUMP_COMPONENT_DEV) 44 { 45 extern const struct bdevsw dm_bdevsw; 46 extern const struct cdevsw dm_cdevsw; 47 devmajor_t bmaj, cmaj; 48 int error; 49 50 /* go, mydevfs */ 51 bmaj = cmaj = -1; 52 53 if ((error = devsw_attach("dm", &dm_bdevsw, &bmaj, 54 &dm_cdevsw, &cmaj)) != 0) 55 panic("cannot attach dm: %d", error); 56 57 do_sys_mkdir("/dev/mapper", 0770, UIO_SYSSPACE); 58 59 if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/mapper/control", 0, 60 cmaj, 0, 1)) != 0) { 61 panic("cannot create device-mapper control device: %d", error); 62 63 } 64 } 65