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/* Copyright (c) 2016, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef PFT_H_
#define PFT_H_
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/bio.h>
#ifdef CONFIG_PFT
/* dm-req-crypt API */
int pft_get_key_index(struct bio *bio, u32 *key_index,
bool *is_encrypted, bool *is_inplace);
/* block layer API */
bool pft_allow_merge_bio(struct bio *bio1, struct bio *bio2);
/* --- security hooks , called from selinux --- */
int pft_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
int pft_inode_post_create(struct inode *dir, struct dentry *dentry,
umode_t mode);
int pft_file_open(struct file *filp, const struct cred *cred);
int pft_file_permission(struct file *file, int mask);
int pft_file_close(struct file *filp);
int pft_inode_unlink(struct inode *dir, struct dentry *dentry);
int pft_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
dev_t dev);
int pft_inode_rename(struct inode *inode, struct dentry *dentry,
struct inode *new_inode, struct dentry *new_dentry);
int pft_inode_set_xattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
#else
static inline int pft_get_key_index(struct bio *bio, u32 *key_index,
bool *is_encrypted, bool *is_inplace)
{ return -ENODEV; }
static inline bool pft_allow_merge_bio(const struct bio *bio1,
const struct bio *bio2)
{ return true; }
static inline int pft_file_permission(struct file *file, int mask)
{ return 0; }
static inline int pft_inode_create(
struct inode *dir, struct dentry *dentry, umode_t mode)
{ return 0; }
static inline int pft_inode_post_create(
struct inode *dir, struct dentry *dentry, umode_t mode)
{ return 0; }
static inline int pft_file_open(struct file *filp, const struct cred *cred)
{ return 0; }
static inline int pft_file_close(struct file *filp)
{ return 0; }
static inline int pft_inode_unlink(struct inode *dir, struct dentry *dentry)
{ return 0; }
static inline int pft_inode_mknod(struct inode *dir, struct dentry *dentry,
umode_t mode, dev_t dev)
{ return 0; }
static inline int pft_inode_rename(struct inode *inode, struct dentry *dentry,
struct inode *new_inode, struct dentry *new_dentry)
{ return 0; }
static inline int pft_inode_set_xattr(struct dentry *dentry, const char *name,
const void *value, size_t size,
int flags)
{ return 0; }
#endif /* CONFIG_PFT */
#endif /* PFT_H */
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