projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 46f47e48 EB |
1 | /* |
| 2 | * fscrypt_supp.h | |
| 3 | * | |
| 4 | * This is included by filesystems configured with encryption support. | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef _LINUX_FSCRYPT_SUPP_H | |
| 8 | #define _LINUX_FSCRYPT_SUPP_H | |
| 9 | ||
| 10 | #include <linux/fscrypt_common.h> | |
| 11 | ||
| 12 | /* crypto.c */ | |
| 13 | extern struct kmem_cache *fscrypt_info_cachep; | |
| 14 | extern struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *, gfp_t); | |
| 15 | extern void fscrypt_release_ctx(struct fscrypt_ctx *); | |
| 16 | extern struct page *fscrypt_encrypt_page(const struct inode *, struct page *, | |
| 17 | unsigned int, unsigned int, | |
| 18 | u64, gfp_t); | |
| 19 | extern int fscrypt_decrypt_page(const struct inode *, struct page *, unsigned int, | |
| 20 | unsigned int, u64); | |
| 21 | extern void fscrypt_restore_control_page(struct page *); | |
| 22 | ||
| 23 | extern const struct dentry_operations fscrypt_d_ops; | |
| 24 | ||
| 25 | static inline void fscrypt_set_d_op(struct dentry *dentry) | |
| 26 | { | |
| 27 | d_set_d_op(dentry, &fscrypt_d_ops); | |
| 28 | } | |
| 29 | ||
| 30 | static inline void fscrypt_set_encrypted_dentry(struct dentry *dentry) | |
| 31 | { | |
| 32 | spin_lock(&dentry->d_lock); | |
| 33 | dentry->d_flags |= DCACHE_ENCRYPTED_WITH_KEY; | |
| 34 | spin_unlock(&dentry->d_lock); | |
| 35 | } | |
| 36 | ||
| 37 | /* policy.c */ | |
| 38 | extern int fscrypt_ioctl_set_policy(struct file *, const void __user *); | |
| 39 | extern int fscrypt_ioctl_get_policy(struct file *, void __user *); | |
| 40 | extern int fscrypt_has_permitted_context(struct inode *, struct inode *); | |
| 41 | extern int fscrypt_inherit_context(struct inode *, struct inode *, | |
| 42 | void *, bool); | |
| 43 | /* keyinfo.c */ | |
| 44 | extern int fscrypt_get_encryption_info(struct inode *); | |
| 45 | extern void fscrypt_put_encryption_info(struct inode *, struct fscrypt_info *); | |
| 46 | ||
| 47 | /* fname.c */ | |
| 48 | extern int fscrypt_setup_filename(struct inode *, const struct qstr *, | |
| 49 | int lookup, struct fscrypt_name *); | |
| 50 | extern void fscrypt_free_filename(struct fscrypt_name *); | |
| 51 | extern u32 fscrypt_fname_encrypted_size(const struct inode *, u32); | |
| 52 | extern int fscrypt_fname_alloc_buffer(const struct inode *, u32, | |
| 53 | struct fscrypt_str *); | |
| 54 | extern void fscrypt_fname_free_buffer(struct fscrypt_str *); | |
| 55 | extern int fscrypt_fname_disk_to_usr(struct inode *, u32, u32, | |
| 56 | const struct fscrypt_str *, struct fscrypt_str *); | |
| 57 | extern int fscrypt_fname_usr_to_disk(struct inode *, const struct qstr *, | |
| 58 | struct fscrypt_str *); | |
| 59 | ||
| 60 | /* bio.c */ | |
| 61 | extern void fscrypt_decrypt_bio_pages(struct fscrypt_ctx *, struct bio *); | |
| 62 | extern void fscrypt_pullback_bio_page(struct page **, bool); | |
| 63 | extern int fscrypt_zeroout_range(const struct inode *, pgoff_t, sector_t, | |
| 64 | unsigned int); | |
| 65 | ||
| 66 | #endif /* _LINUX_FSCRYPT_SUPP_H */ |