/*      $NetBSD: vm_12.c,v 1.21 2019/01/27 02:08:39 pgoyette Exp $      */

/*
* Copyright (c) 1997 Matthew R. Green
* 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 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: vm_12.c,v 1.21 2019/01/27 02:08:39 pgoyette Exp $");

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

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

#include <sys/swap.h>
#include <sys/mman.h>

#include <compat/common/compat_mod.h>

static const struct syscall_package vm_12_syscalls[] = {
       { SYS_compat_12_msync, 0, (sy_call_t *)compat_12_sys_msync },
       { SYS_compat_12_oswapon, 0, (sy_call_t *)compat_12_sys_swapon },
       { 0, 0, NULL }
};

int
compat_12_sys_swapon(struct lwp *l,
   const struct compat_12_sys_swapon_args *uap, register_t *retval)
{
       /* {
               syscallarg(const char *) name;
       } */
       struct sys_swapctl_args ua;

       SCARG(&ua, cmd) = SWAP_ON;
       /*XXXUNCONST*/
       SCARG(&ua, arg) = __UNCONST(SCARG(uap, name));
       SCARG(&ua, misc) = 0;   /* priority */
       return (sys_swapctl(l, &ua, retval));
}

int
compat_12_sys_msync(struct lwp *l,
   const struct compat_12_sys_msync_args *uap, register_t *retval)
{
       /* {
               syscallarg(void *) addr;
               syscallarg(size_t) len;
       } */
       struct sys___msync13_args ua;

       SCARG(&ua, addr) = SCARG(uap, addr);
       SCARG(&ua, len) = SCARG(uap, len);
       SCARG(&ua, flags) = MS_SYNC | MS_INVALIDATE;
       return (sys___msync13(l, &ua, retval));
}

int
vm_12_init(void)
{

       return syscall_establish(NULL, vm_12_syscalls);
}

int
vm_12_fini(void)
{

       return syscall_disestablish(NULL, vm_12_syscalls);
}