/*      $NetBSD: opencrypto_component.c,v 1.6 2020/01/27 17:10:23 pgoyette 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: opencrypto_component.c,v 1.6 2020/01/27 17:10:23 pgoyette Exp $");

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

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

#include "ioconf.h"

void crypto_init(void);

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

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

       if ((error = devsw_attach("crypto", NULL, &bmaj,
           &crypto_cdevsw, &cmaj)) != 0)
               panic("cannot attach crypto: %d", error);

       if ((error = rump_vfs_makeonedevnode(S_IFCHR, "/dev/crypto",
           cmaj, 0)) != 0)
               panic("cannot create /dev/crypto: %d", error);

       /*
        * Initialize OpenCrypto and its pseudo-devices here
        */
       crypto_init();
       rump_pdev_add(cryptoattach, 1);
#if 0
       /*
        * rump defines "_MODULE" in spite of using built-in module
        * initialization(module_init_class()). So, swcryptoattach_internal()
        * is called by two functions, one is swcryptoattach() and the other is
        * swcrypto_modcmd().
        * That causes "builtin module `swcrypto' failed to init" WARNING message.
        * To suppress this warning, we let rump use swcrypto_modcmd() call-path
        * only.
        *
        * TODO:
        * There is still "crypto: unable to register devsw, error 17" message.
        * it should be suppressed.
        */
       rump_pdev_add(swcryptoattach, 0);
#endif
}