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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-21 03:22:31 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-21 03:22:31 +0100
commit6c24337f22115d669e24ce990842dab667371b4d (patch)
tree44c41adb55182c4fe833935f3b346ed7ad7e29ca /fs/ubifs
parentMerge tag 'device-properties-4.11-rc1' of git://git.kernel.org/pub/scm/linux/... (diff)
parentfscrypt: constify struct fscrypt_operations (diff)
downloadlinux-6c24337f22115d669e24ce990842dab667371b4d.tar.xz
linux-6c24337f22115d669e24ce990842dab667371b4d.zip
Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
Pull fscrypt updates from Ted Ts'o: "Various cleanups for the file system encryption feature" * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt: fscrypt: constify struct fscrypt_operations fscrypt: properly declare on-stack completion fscrypt: split supp and notsupp declarations into their own headers fscrypt: remove redundant assignment of res fscrypt: make fscrypt_operations.key_prefix a string fscrypt: remove unused 'mode' member of fscrypt_ctx ext4: don't allow encrypted operations without keys fscrypt: make test_dummy_encryption require a keyring key fscrypt: factor out bio specific functions fscrypt: pass up error codes from ->get_context() fscrypt: remove user-triggerable warning messages fscrypt: use EEXIST when file already uses different policy fscrypt: use ENOTDIR when setting encryption policy on nondirectory fscrypt: use ENOKEY when file cannot be created w/o key
Diffstat (limited to 'fs/ubifs')
-rw-r--r--fs/ubifs/crypto.c13
-rw-r--r--fs/ubifs/super.c2
-rw-r--r--fs/ubifs/ubifs.h30
3 files changed, 9 insertions, 36 deletions
diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c
index 3402720f2b28..382ed428cfd2 100644
--- a/fs/ubifs/crypto.c
+++ b/fs/ubifs/crypto.c
@@ -26,15 +26,6 @@ static unsigned int ubifs_crypt_max_namelen(struct inode *inode)
return UBIFS_MAX_NLEN;
}
-static int ubifs_key_prefix(struct inode *inode, u8 **key)
-{
- static char prefix[] = "ubifs:";
-
- *key = prefix;
-
- return sizeof(prefix) - 1;
-}
-
int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn,
unsigned int in_len, unsigned int *out_len, int block)
{
@@ -86,12 +77,12 @@ int ubifs_decrypt(const struct inode *inode, struct ubifs_data_node *dn,
return 0;
}
-struct fscrypt_operations ubifs_crypt_operations = {
+const struct fscrypt_operations ubifs_crypt_operations = {
.flags = FS_CFLG_OWN_PAGES,
+ .key_prefix = "ubifs:",
.get_context = ubifs_crypt_get_context,
.set_context = ubifs_crypt_set_context,
.is_encrypted = __ubifs_crypt_is_encrypted,
.empty_dir = ubifs_crypt_empty_dir,
.max_namelen = ubifs_crypt_max_namelen,
- .key_prefix = ubifs_key_prefix,
};
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index e08aa04fc835..b73811bd7676 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2000,7 +2000,7 @@ static struct ubifs_info *alloc_ubifs_info(struct ubi_volume_desc *ubi)
}
#ifndef CONFIG_UBIFS_FS_ENCRYPTION
-struct fscrypt_operations ubifs_crypt_operations = {
+const struct fscrypt_operations ubifs_crypt_operations = {
.is_encrypted = __ubifs_crypt_is_encrypted,
};
#endif
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index ca72382ce6cc..f0c86f076535 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -38,7 +38,11 @@
#include <linux/backing-dev.h>
#include <linux/security.h>
#include <linux/xattr.h>
-#include <linux/fscrypto.h>
+#ifdef CONFIG_UBIFS_FS_ENCRYPTION
+#include <linux/fscrypt_supp.h>
+#else
+#include <linux/fscrypt_notsupp.h>
+#endif
#include <linux/random.h>
#include "ubifs-media.h"
@@ -1797,28 +1801,6 @@ int ubifs_decompress(const struct ubifs_info *c, const void *buf, int len,
#include "key.h"
#ifndef CONFIG_UBIFS_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_ioctl_set_policy fscrypt_notsupp_ioctl_set_policy
-#define fscrypt_ioctl_get_policy fscrypt_notsupp_ioctl_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
static inline int ubifs_encrypt(const struct inode *inode,
struct ubifs_data_node *dn,
unsigned int in_len, unsigned int *out_len,
@@ -1842,7 +1824,7 @@ int ubifs_decrypt(const struct inode *inode, struct ubifs_data_node *dn,
unsigned int *out_len, int block);
#endif
-extern struct fscrypt_operations ubifs_crypt_operations;
+extern const struct fscrypt_operations ubifs_crypt_operations;
static inline bool __ubifs_crypt_is_encrypted(struct inode *inode)
{