sys/rump/dev/lib/librnd/component.c

   1 /*      $NetBSD: component.c,v 1.1 2009/09/08 20:12:52 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: component.c,v 1.1 2009/09/08 20:12:52 pooka Exp $");
  30
  31 #include <sys/param.h>
  32 #include <sys/conf.h>
  33 #include <sys/device.h>
  34 #include <sys/rnd.h>
  35 #include <sys/stat.h>
  36
  37 #include "rump_dev_private.h"
  38 #include "rump_vfs_private.h"
  39
  40 void rndattach(int);
  41
  42 void
  43 rump_dev_rnd_init()
  44 {
  45         extern const struct cdevsw rnd_cdevsw;
  46         devmajor_t bmaj, cmaj;
  47         int error;
  48
  49         /* go, mydevfs */
  50         bmaj = cmaj = -1;
  51
  52         if ((error = devsw_attach("random", NULL, &bmaj,
  53             &rnd_cdevsw, &cmaj)) != 0)
  54                 panic("cannot attach rnd: %d", error);
  55
  56         /* XXX: truly hideous interface abuse */
  57         if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/random", 0,
  58             cmaj, RND_DEV_RANDOM, 1)) != 0)
  59                 panic("cannot create /dev/random: %d", error);
  60         if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/urandom", 0,
  61             cmaj, RND_DEV_URANDOM, 1)) != 0)
  62                 panic("cannot create /dev/urandom: %d", error);
  63
  64         rump_pdev_add(rndattach, 4);
  65         rnd_init();
  66 }