/*
 *
 * Copyright (C) 2014 Allwinner Ltd.
 *
 * Author:
 *	Ryan Chen <ryanchen@allwinnertech.com>
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 */


#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/security.h>
#include <linux/fivm.h>

static struct fivm_operation fivm_ops = {NULL, NULL};
int fivm_mmap_verify(struct file *file, unsigned long prot)
{
	if (fivm_ops.mmap_verify)
		return fivm_ops.mmap_verify(file, prot);
	else
		return 0;
}
int fivm_open_verify(struct file *file, const char *pathname, int mask)
{
	if (fivm_ops.open_verify)
		return fivm_ops.open_verify(file, pathname, mask);
	else
		return 0;
}

int fivm_register_func(
		int (*mmap_verify)(struct file *, unsigned long),
		int (*open_verify)(struct file *, const char *, int))
{
	memset(&fivm_ops, 0, sizeof(fivm_ops));
	fivm_ops.mmap_verify = mmap_verify;
	fivm_ops.open_verify = open_verify;
	return 0;
}
EXPORT_SYMBOL(fivm_register_func);

int fivm_unregister_func(void)
{
	memset(&fivm_ops, 0, sizeof(fivm_ops));
	return 0;
}
EXPORT_SYMBOL(fivm_unregister_func);