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| author | James Morris <james.l.morris@oracle.com> | 2017-07-25 10:44:18 +1000 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2017-07-25 10:44:18 +1000 |
| commit | 53a2ebaaabc1eb8458796fec3bc1e0e80746b642 (patch) | |
| tree | 9d1f9227b49392cdd2edcc01057517da4f4b09c2 /include/linux/fscrypt_common.h | |
| parent | 3cf29931453215536916d0c4da953fce1911ced3 (diff) | |
| parent | 520eccdfe187591a51ea9ab4c1a024ae4d0f68d9 (diff) | |
| download | lwn-53a2ebaaabc1eb8458796fec3bc1e0e80746b642.tar.gz lwn-53a2ebaaabc1eb8458796fec3bc1e0e80746b642.zip | |
sync to Linus v4.13-rc2 for subsystem developers to work against
Diffstat (limited to 'include/linux/fscrypt_common.h')
| -rw-r--r-- | include/linux/fscrypt_common.h | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/include/linux/fscrypt_common.h b/include/linux/fscrypt_common.h index 0a30c106c1e5..97f738628b36 100644 --- a/include/linux/fscrypt_common.h +++ b/include/linux/fscrypt_common.h @@ -77,12 +77,15 @@ struct fscrypt_operations { const char *key_prefix; int (*get_context)(struct inode *, void *, size_t); int (*set_context)(struct inode *, const void *, size_t, void *); - int (*dummy_context)(struct inode *); + bool (*dummy_context)(struct inode *); bool (*is_encrypted)(struct inode *); bool (*empty_dir)(struct inode *); unsigned (*max_namelen)(struct inode *); }; +/* Maximum value for the third parameter of fscrypt_operations.set_context(). */ +#define FSCRYPT_SET_CONTEXT_MAX_SIZE 28 + static inline bool fscrypt_dummy_context_enabled(struct inode *inode) { if (inode->i_sb->s_cop->dummy_context && @@ -91,14 +94,18 @@ static inline bool fscrypt_dummy_context_enabled(struct inode *inode) return false; } -static inline bool fscrypt_valid_contents_enc_mode(u32 mode) +static inline bool fscrypt_valid_enc_modes(u32 contents_mode, + u32 filenames_mode) { - return (mode == FS_ENCRYPTION_MODE_AES_256_XTS); -} + if (contents_mode == FS_ENCRYPTION_MODE_AES_128_CBC && + filenames_mode == FS_ENCRYPTION_MODE_AES_128_CTS) + return true; -static inline bool fscrypt_valid_filenames_enc_mode(u32 mode) -{ - return (mode == FS_ENCRYPTION_MODE_AES_256_CTS); + if (contents_mode == FS_ENCRYPTION_MODE_AES_256_XTS && + filenames_mode == FS_ENCRYPTION_MODE_AES_256_CTS) + return true; + + return false; } static inline bool fscrypt_is_dot_dotdot(const struct qstr *str) |