67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
/*
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* fscrypt_supp.h
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*
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* This is included by filesystems configured with encryption support.
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*/
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#ifndef _LINUX_FSCRYPT_SUPP_H
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#define _LINUX_FSCRYPT_SUPP_H
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#include <linux/fscrypt_common.h>
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/* crypto.c */
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extern struct kmem_cache *fscrypt_info_cachep;
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extern struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *, gfp_t);
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extern void fscrypt_release_ctx(struct fscrypt_ctx *);
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extern struct page *fscrypt_encrypt_page(const struct inode *, struct page *,
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unsigned int, unsigned int,
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u64, gfp_t);
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extern int fscrypt_decrypt_page(const struct inode *, struct page *, unsigned int,
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unsigned int, u64);
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extern void fscrypt_restore_control_page(struct page *);
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extern const struct dentry_operations fscrypt_d_ops;
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static inline void fscrypt_set_d_op(struct dentry *dentry)
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{
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d_set_d_op(dentry, &fscrypt_d_ops);
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}
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static inline void fscrypt_set_encrypted_dentry(struct dentry *dentry)
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{
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spin_lock(&dentry->d_lock);
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dentry->d_flags |= DCACHE_ENCRYPTED_WITH_KEY;
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spin_unlock(&dentry->d_lock);
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}
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/* policy.c */
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extern int fscrypt_ioctl_set_policy(struct file *, const void __user *);
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extern int fscrypt_ioctl_get_policy(struct file *, void __user *);
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extern int fscrypt_has_permitted_context(struct inode *, struct inode *);
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extern int fscrypt_inherit_context(struct inode *, struct inode *,
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void *, bool);
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/* keyinfo.c */
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extern int fscrypt_get_encryption_info(struct inode *);
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extern void fscrypt_put_encryption_info(struct inode *, struct fscrypt_info *);
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/* fname.c */
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extern int fscrypt_setup_filename(struct inode *, const struct qstr *,
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int lookup, struct fscrypt_name *);
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extern void fscrypt_free_filename(struct fscrypt_name *);
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extern u32 fscrypt_fname_encrypted_size(const struct inode *, u32);
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extern int fscrypt_fname_alloc_buffer(const struct inode *, u32,
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struct fscrypt_str *);
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extern void fscrypt_fname_free_buffer(struct fscrypt_str *);
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extern int fscrypt_fname_disk_to_usr(struct inode *, u32, u32,
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const struct fscrypt_str *, struct fscrypt_str *);
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extern int fscrypt_fname_usr_to_disk(struct inode *, const struct qstr *,
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struct fscrypt_str *);
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/* bio.c */
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extern void fscrypt_decrypt_bio_pages(struct fscrypt_ctx *, struct bio *);
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extern void fscrypt_pullback_bio_page(struct page **, bool);
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extern int fscrypt_zeroout_range(const struct inode *, pgoff_t, sector_t,
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unsigned int);
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#endif /* _LINUX_FSCRYPT_SUPP_H */
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