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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-20 18:22:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-20 18:22:31 -0800 |
| commit | 6c24337f22115d669e24ce990842dab667371b4d (patch) | |
| tree | 44c41adb55182c4fe833935f3b346ed7ad7e29ca /fs/ext4/namei.c | |
| parent | 786856b6d111a30d51c98526cc7a283ecc73f00f (diff) | |
| parent | 6f69f0ed6136c302976f8e8f859b73d47f0c0c5c (diff) | |
| download | linux-6c24337f22115d669e24ce990842dab667371b4d.tar.bz2 | |
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/ext4/namei.c')
| -rw-r--r-- | fs/ext4/namei.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index eadba919f26b..bb880c326191 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1378,6 +1378,8 @@ static struct buffer_head * ext4_find_entry (struct inode *dir, return NULL; retval = ext4_fname_setup_filename(dir, d_name, 1, &fname); + if (retval == -ENOENT) + return NULL; if (retval) return ERR_PTR(retval); @@ -3088,7 +3090,7 @@ static int ext4_symlink(struct inode *dir, if (err) return err; if (!fscrypt_has_encryption_key(dir)) - return -EPERM; + return -ENOKEY; disk_link.len = (fscrypt_fname_encrypted_size(dir, len) + sizeof(struct fscrypt_symlink_data)); sd = kzalloc(disk_link.len, GFP_KERNEL); @@ -3525,6 +3527,12 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, EXT4_I(old_dentry->d_inode)->i_projid))) return -EXDEV; + if ((ext4_encrypted_inode(old_dir) && + !fscrypt_has_encryption_key(old_dir)) || + (ext4_encrypted_inode(new_dir) && + !fscrypt_has_encryption_key(new_dir))) + return -ENOKEY; + retval = dquot_initialize(old.dir); if (retval) return retval; @@ -3725,6 +3733,12 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry, int retval; struct timespec ctime; + if ((ext4_encrypted_inode(old_dir) && + !fscrypt_has_encryption_key(old_dir)) || + (ext4_encrypted_inode(new_dir) && + !fscrypt_has_encryption_key(new_dir))) + return -ENOKEY; + if ((ext4_encrypted_inode(old_dir) || ext4_encrypted_inode(new_dir)) && (old_dir != new_dir) && |