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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - include/linux/fscrypt_notsupp.h
4 * This stubs out the fscrypt functions for filesystems configured without
8 #ifndef _LINUX_FSCRYPT_NOTSUPP_H
9 #define _LINUX_FSCRYPT_NOTSUPP_H
11 #include <linux/fscrypt_common.h>
14 static inline struct fscrypt_ctx
*fscrypt_get_ctx(const struct inode
*inode
,
17 return ERR_PTR(-EOPNOTSUPP
);
20 static inline void fscrypt_release_ctx(struct fscrypt_ctx
*ctx
)
25 static inline struct page
*fscrypt_encrypt_page(const struct inode
*inode
,
29 u64 lblk_num
, gfp_t gfp_flags
)
31 return ERR_PTR(-EOPNOTSUPP
);
34 static inline int fscrypt_decrypt_page(const struct inode
*inode
,
36 unsigned int len
, unsigned int offs
,
43 static inline void fscrypt_restore_control_page(struct page
*page
)
48 static inline void fscrypt_set_d_op(struct dentry
*dentry
)
53 static inline void fscrypt_set_encrypted_dentry(struct dentry
*dentry
)
59 static inline int fscrypt_ioctl_set_policy(struct file
*filp
,
60 const void __user
*arg
)
65 static inline int fscrypt_ioctl_get_policy(struct file
*filp
, void __user
*arg
)
70 static inline int fscrypt_has_permitted_context(struct inode
*parent
,
76 static inline int fscrypt_inherit_context(struct inode
*parent
,
78 void *fs_data
, bool preload
)
84 static inline int fscrypt_get_encryption_info(struct inode
*inode
)
89 static inline void fscrypt_put_encryption_info(struct inode
*inode
,
90 struct fscrypt_info
*ci
)
96 static inline int fscrypt_setup_filename(struct inode
*dir
,
97 const struct qstr
*iname
,
98 int lookup
, struct fscrypt_name
*fname
)
100 if (dir
->i_sb
->s_cop
->is_encrypted(dir
))
103 memset(fname
, 0, sizeof(struct fscrypt_name
));
104 fname
->usr_fname
= iname
;
105 fname
->disk_name
.name
= (unsigned char *)iname
->name
;
106 fname
->disk_name
.len
= iname
->len
;
110 static inline void fscrypt_free_filename(struct fscrypt_name
*fname
)
115 static inline u32
fscrypt_fname_encrypted_size(const struct inode
*inode
,
123 static inline int fscrypt_fname_alloc_buffer(const struct inode
*inode
,
125 struct fscrypt_str
*crypto_str
)
130 static inline void fscrypt_fname_free_buffer(struct fscrypt_str
*crypto_str
)
135 static inline int fscrypt_fname_disk_to_usr(struct inode
*inode
,
136 u32 hash
, u32 minor_hash
,
137 const struct fscrypt_str
*iname
,
138 struct fscrypt_str
*oname
)
143 static inline int fscrypt_fname_usr_to_disk(struct inode
*inode
,
144 const struct qstr
*iname
,
145 struct fscrypt_str
*oname
)
150 static inline bool fscrypt_match_name(const struct fscrypt_name
*fname
,
151 const u8
*de_name
, u32 de_name_len
)
153 /* Encryption support disabled; use standard comparison */
154 if (de_name_len
!= fname
->disk_name
.len
)
156 return !memcmp(de_name
, fname
->disk_name
.name
, fname
->disk_name
.len
);
160 static inline void fscrypt_decrypt_bio_pages(struct fscrypt_ctx
*ctx
,
166 static inline void fscrypt_pullback_bio_page(struct page
**page
, bool restore
)
171 static inline int fscrypt_zeroout_range(const struct inode
*inode
, pgoff_t lblk
,
172 sector_t pblk
, unsigned int len
)
177 #endif /* _LINUX_FSCRYPT_NOTSUPP_H */