a8059e6d39
Numerous changes were introduced to various layers: Block: removed dependency on selinux module for decision on bio merge EXT4: Added feature controlled support for HW encryption PFK: Major re-factoring, separation to eCryptfs and EXT4 sub-layers Change-Id: I9256c8736e1c16175fe3f94733dda430ccc57980 Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
/* Copyright (c) 2016, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _EXT4_ICE_H
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#define _EXT4_ICE_H
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#include "ext4.h"
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#include "ext4_crypto.h"
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#ifdef CONFIG_EXT4_FS_ICE_ENCRYPTION
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static inline int ext4_should_be_processed_by_ice(const struct inode *inode)
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{
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if (!ext4_encrypted_inode((struct inode *)inode))
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return 0;
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return ext4_using_hardware_encryption((struct inode *)inode);
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}
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static inline int ext4_is_ice_enabled(void)
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{
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return 1;
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}
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int ext4_is_aes_xts_cipher(const struct inode *inode);
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char *ext4_get_ice_encryption_key(const struct inode *inode);
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char *ext4_get_ice_encryption_salt(const struct inode *inode);
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int ext4_is_ice_encryption_info_equal(const struct inode *inode1,
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const struct inode *inode2);
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static inline size_t ext4_get_ice_encryption_key_size(
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const struct inode *inode)
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{
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return EXT4_AES_256_XTS_KEY_SIZE / 2;
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}
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static inline size_t ext4_get_ice_encryption_salt_size(
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const struct inode *inode)
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{
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return EXT4_AES_256_XTS_KEY_SIZE / 2;
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}
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#else
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static inline int ext4_should_be_processed_by_ice(const struct inode *inode)
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{
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return 0;
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}
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static inline int ext4_is_ice_enabled(void)
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{
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return 0;
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}
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static inline char *ext4_get_ice_encryption_key(const struct inode *inode)
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{
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return NULL;
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}
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static inline char *ext4_get_ice_encryption_salt(const struct inode *inode)
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{
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return NULL;
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}
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static inline size_t ext4_get_ice_encryption_key_size(
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const struct inode *inode)
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{
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return 0;
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}
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static inline size_t ext4_get_ice_encryption_salt_size(
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const struct inode *inode)
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{
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return 0;
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}
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static inline int ext4_is_xts_cipher(const struct inode *inode)
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{
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return 0;
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}
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static inline int ext4_is_ice_encryption_info_equal(
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const struct inode *inode1,
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const struct inode *inode2)
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{
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return 0;
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}
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static inline int ext4_is_aes_xts_cipher(const struct inode *inode)
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{
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return 0;
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}
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#endif
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#endif /* _EXT4_ICE_H */
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