#include <linux/vmalloc.h>
#include <linux/bio.h>
#include <linux/blkdev.h>
+#include <linux/fscrypto.h>
#ifdef CONFIG_F2FS_CHECK_FS
#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
#define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
-#define F2FS_IOC_SET_ENCRYPTION_POLICY \
- _IOR('f', 19, struct f2fs_encryption_policy)
-#define F2FS_IOC_GET_ENCRYPTION_PWSALT \
- _IOW('f', 20, __u8[16])
-#define F2FS_IOC_GET_ENCRYPTION_POLICY \
- _IOW('f', 21, struct f2fs_encryption_policy)
+#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
+#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
+#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
/*
* should be same as XFS_IOC_GOINGDOWN.
* For INODE and NODE manager
*/
/* for directory operations */
-struct f2fs_str {
- unsigned char *name;
- u32 len;
-};
-
-struct f2fs_filename {
- const struct qstr *usr_fname;
- struct f2fs_str disk_name;
- f2fs_hash_t hash;
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- struct f2fs_str crypto_buf;
-#endif
-};
-
-#define FSTR_INIT(n, l) { .name = n, .len = l }
-#define FSTR_TO_QSTR(f) QSTR_INIT((f)->name, (f)->len)
-#define fname_name(p) ((p)->disk_name.name)
-#define fname_len(p) ((p)->disk_name.len)
-
struct f2fs_dentry_ptr {
struct inode *inode;
const void *bitmap;
#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
-/* Encryption algorithms */
-#define F2FS_ENCRYPTION_MODE_INVALID 0
-#define F2FS_ENCRYPTION_MODE_AES_256_XTS 1
-#define F2FS_ENCRYPTION_MODE_AES_256_GCM 2
-#define F2FS_ENCRYPTION_MODE_AES_256_CBC 3
-#define F2FS_ENCRYPTION_MODE_AES_256_CTS 4
-
-#include "f2fs_crypto.h"
-
#define DEF_DIR_LEVEL 0
struct f2fs_inode_info {
struct list_head dirty_list; /* linked in global dirty list */
struct list_head inmem_pages; /* inmemory pages managed by f2fs */
struct mutex inmem_lock; /* lock for inmemory pages */
-
struct extent_tree *extent_tree; /* cached extent_tree entry */
-
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- /* Encryption params */
- struct f2fs_crypt_info *i_crypt_info;
-#endif
};
static inline void get_extent_info(struct extent_info *ext,
extern unsigned char f2fs_filetype_table[F2FS_FT_MAX];
void set_de_type(struct f2fs_dir_entry *, umode_t);
-struct f2fs_dir_entry *find_target_dentry(struct f2fs_filename *,
+struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *,
f2fs_hash_t, int *, struct f2fs_dentry_ptr *);
bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *,
- unsigned int, struct f2fs_str *);
+ unsigned int, struct fscrypt_str *);
void do_make_empty_dir(struct inode *, struct inode *,
struct f2fs_dentry_ptr *);
struct page *init_inode_metadata(struct inode *, struct inode *,
int f2fs_write_inline_data(struct inode *, struct page *);
bool recover_inline_data(struct inode *, struct page *);
struct f2fs_dir_entry *find_in_inline_dir(struct inode *,
- struct f2fs_filename *, struct page **);
+ struct fscrypt_name *, struct page **);
struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *, struct page **);
int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *);
int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *,
struct inode *, struct inode *);
bool f2fs_empty_inline_dir(struct inode *);
int f2fs_read_inline_dir(struct file *, struct dir_context *,
- struct f2fs_str *);
+ struct fscrypt_str *);
int f2fs_inline_data_fiemap(struct inode *,
struct fiemap_extent_info *, __u64, __u64);
/*
* crypto support
*/
-static inline int f2fs_encrypted_inode(struct inode *inode)
+static inline bool f2fs_encrypted_inode(struct inode *inode)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
return file_is_encrypt(inode);
-#else
- return 0;
-#endif
}
static inline void f2fs_set_encrypted_inode(struct inode *inode)
static inline bool f2fs_bio_encrypted(struct bio *bio)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- return unlikely(bio->bi_private != NULL);
-#else
- return false;
-#endif
+ return bio->bi_private != NULL;
}
static inline int f2fs_sb_has_crypto(struct super_block *sb)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
-#else
- return 0;
-#endif
}
static inline bool f2fs_may_encrypt(struct inode *inode)
#endif
}
-/* crypto_policy.c */
-int f2fs_is_child_context_consistent_with_parent(struct inode *,
- struct inode *);
-int f2fs_inherit_context(struct inode *, struct inode *, struct page *);
-int f2fs_process_policy(const struct f2fs_encryption_policy *, struct inode *);
-int f2fs_get_policy(struct inode *, struct f2fs_encryption_policy *);
-
-/* crypt.c */
-extern struct kmem_cache *f2fs_crypt_info_cachep;
-bool f2fs_valid_contents_enc_mode(uint32_t);
-uint32_t f2fs_validate_encryption_key_size(uint32_t, uint32_t);
-struct f2fs_crypto_ctx *f2fs_get_crypto_ctx(struct inode *);
-void f2fs_release_crypto_ctx(struct f2fs_crypto_ctx *);
-struct page *f2fs_encrypt(struct inode *, struct page *);
-int f2fs_decrypt(struct page *);
-void f2fs_end_io_crypto_work(struct f2fs_crypto_ctx *, struct bio *);
-
-/* crypto_key.c */
-void f2fs_free_encryption_info(struct inode *, struct f2fs_crypt_info *);
-int _f2fs_get_encryption_info(struct inode *inode);
-
-/* crypto_fname.c */
-bool f2fs_valid_filenames_enc_mode(uint32_t);
-u32 f2fs_fname_crypto_round_up(u32, u32);
-unsigned f2fs_fname_encrypted_size(struct inode *, u32);
-int f2fs_fname_crypto_alloc_buffer(struct inode *, u32, struct f2fs_str *);
-int f2fs_fname_disk_to_usr(struct inode *, f2fs_hash_t *,
- const struct f2fs_str *, struct f2fs_str *);
-int f2fs_fname_usr_to_disk(struct inode *, const struct qstr *,
- struct f2fs_str *);
-
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
-void f2fs_restore_and_release_control_page(struct page **);
-void f2fs_restore_control_page(struct page *);
-
-int __init f2fs_init_crypto(void);
-int f2fs_crypto_initialize(void);
-void f2fs_exit_crypto(void);
-
-int f2fs_has_encryption_key(struct inode *);
-
-static inline int f2fs_get_encryption_info(struct inode *inode)
-{
- struct f2fs_crypt_info *ci = F2FS_I(inode)->i_crypt_info;
-
- if (!ci ||
- (ci->ci_keyring_key &&
- (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) |
- (1 << KEY_FLAG_REVOKED) |
- (1 << KEY_FLAG_DEAD)))))
- return _f2fs_get_encryption_info(inode);
- return 0;
-}
-
-void f2fs_fname_crypto_free_buffer(struct f2fs_str *);
-int f2fs_fname_setup_filename(struct inode *, const struct qstr *,
- int lookup, struct f2fs_filename *);
-void f2fs_fname_free_filename(struct f2fs_filename *);
-#else
-static inline void f2fs_restore_and_release_control_page(struct page **p) { }
-static inline void f2fs_restore_control_page(struct page *p) { }
-
-static inline int __init f2fs_init_crypto(void) { return 0; }
-static inline void f2fs_exit_crypto(void) { }
-
-static inline int f2fs_has_encryption_key(struct inode *i) { return 0; }
-static inline int f2fs_get_encryption_info(struct inode *i) { return 0; }
-static inline void f2fs_fname_crypto_free_buffer(struct f2fs_str *p) { }
-
-static inline int f2fs_fname_setup_filename(struct inode *dir,
- const struct qstr *iname,
- int lookup, struct f2fs_filename *fname)
-{
- memset(fname, 0, sizeof(struct f2fs_filename));
- fname->usr_fname = iname;
- fname->disk_name.name = (unsigned char *)iname->name;
- fname->disk_name.len = iname->len;
- return 0;
-}
-
-static inline void f2fs_fname_free_filename(struct f2fs_filename *fname) { }
+#ifndef CONFIG_F2FS_FS_ENCRYPTION
+#define fscrypt_set_d_op(i)
+#define fscrypt_get_ctx fscrypt_notsupp_get_ctx
+#define fscrypt_release_ctx fscrypt_notsupp_release_ctx
+#define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page
+#define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page
+#define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages
+#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
+#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
+#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
+#define fscrypt_process_policy fscrypt_notsupp_process_policy
+#define fscrypt_get_policy fscrypt_notsupp_get_policy
+#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
+#define fscrypt_inherit_context fscrypt_notsupp_inherit_context
+#define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info
+#define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info
+#define fscrypt_setup_filename fscrypt_notsupp_setup_filename
+#define fscrypt_free_filename fscrypt_notsupp_free_filename
+#define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size
+#define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer
+#define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer
+#define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr
+#define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk
#endif
#endif
OSDN Git Service
