/*      $NetBSD: compat_30_mod.c,v 1.3 2019/12/28 15:39:52 pgoyette Exp $       */

/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software developed for The NetBSD Foundation
* by Paul Goyette
*
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION 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.
*/

/*
* Linkage for the compat module: spaghetti.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: compat_30_mod.c,v 1.3 2019/12/28 15:39:52 pgoyette Exp $");

#if defined(_KERNEL_OPT)
#include "opt_compat_netbsd.h"
#endif

#include <sys/systm.h>
#include <sys/module.h>
#include <sys/sysctl.h>
#include <sys/syscall.h>
#include <sys/syscallvar.h>
#include <sys/syscallargs.h>

#include <dev/biovar.h>

#include <compat/common/compat_util.h>
#include <compat/common/compat_mod.h>

int
compat_30_init(void)
{
       int error = 0;

       error = vfs_syscalls_30_init();
       if (error != 0)
               return error;

       error = kern_time_30_init();
       if (error != 0) {
               vfs_syscalls_30_fini();
               return error;
       }
       error = uipc_syscalls_30_init();
       if (error != 0) {
               kern_time_30_fini();
               vfs_syscalls_30_fini();
               return error;
       }
       bio_30_init();
       vnd_30_init();
       usb_30_init();

       return error;
}

int
compat_30_fini(void)
{
       int error = 0;

       usb_30_fini();
       vnd_30_fini();
       bio_30_fini();

       error = uipc_syscalls_30_fini();
       if (error != 0)
               goto err1;

       error = kern_time_30_fini();
       if (error != 0)
               goto err2;

       error = vfs_syscalls_30_fini();
       if (error != 0)
               goto err3;

       return 0;

err3:
       kern_time_30_init();
err2:
       uipc_syscalls_30_init();
err1:
       bio_30_init();
       vnd_30_init();
       usb_30_init();

       return error;
}

MODULE(MODULE_CLASS_EXEC, compat_30, "compat_util,compat_40");

static int
compat_30_modcmd(modcmd_t cmd, void *arg)
{

       switch (cmd) {
       case MODULE_CMD_INIT:
               return compat_30_init();
       case MODULE_CMD_FINI:
               return compat_30_fini();
       default:
               return ENOTTY;
       }
}