diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-07-10 20:01:03 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2016-07-10 20:01:03 +0200 |
| commit | a7550b30ab709ffb9bbe48669adf7d8556f3698f (patch) | |
| tree | 5ed986d93b2df41cad68bdfa0851604bb039d1d1 /fs/ext4/dir.c | |
| parent | ext2: fix filesystem deadlock while reading corrupted xattr block (diff) | |
| download | linux-a7550b30ab709ffb9bbe48669adf7d8556f3698f.tar.xz linux-a7550b30ab709ffb9bbe48669adf7d8556f3698f.zip | |
ext4 crypto: migrate into vfs's crypto engine
This patch removes the most parts of internal crypto codes.
And then, it modifies and adds some ext4-specific crypt codes to use the generic
facility.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/dir.c')
| -rw-r--r-- | fs/ext4/dir.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index 68323e3da3fa..67415e0e6af0 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -109,10 +109,10 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx) struct super_block *sb = inode->i_sb; struct buffer_head *bh = NULL; int dir_has_error = 0; - struct ext4_str fname_crypto_str = {.name = NULL, .len = 0}; + struct fscrypt_str fstr = FSTR_INIT(NULL, 0); if (ext4_encrypted_inode(inode)) { - err = ext4_get_encryption_info(inode); + err = fscrypt_get_encryption_info(inode); if (err && err != -ENOKEY) return err; } @@ -139,8 +139,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx) } if (ext4_encrypted_inode(inode)) { - err = ext4_fname_crypto_alloc_buffer(inode, EXT4_NAME_LEN, - &fname_crypto_str); + err = fscrypt_fname_alloc_buffer(inode, EXT4_NAME_LEN, &fstr); if (err < 0) return err; } @@ -253,16 +252,19 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx) get_dtype(sb, de->file_type))) goto done; } else { - int save_len = fname_crypto_str.len; + int save_len = fstr.len; + struct fscrypt_str de_name = + FSTR_INIT(de->name, + de->name_len); /* Directory is encrypted */ - err = ext4_fname_disk_to_usr(inode, - NULL, de, &fname_crypto_str); - fname_crypto_str.len = save_len; + err = fscrypt_fname_disk_to_usr(inode, + 0, 0, &de_name, &fstr); + fstr.len = save_len; if (err < 0) goto errout; if (!dir_emit(ctx, - fname_crypto_str.name, err, + fstr.name, err, le32_to_cpu(de->inode), get_dtype(sb, de->file_type))) goto done; @@ -281,7 +283,7 @@ done: err = 0; errout: #ifdef CONFIG_EXT4_FS_ENCRYPTION - ext4_fname_crypto_free_buffer(&fname_crypto_str); + fscrypt_fname_free_buffer(&fstr); #endif brelse(bh); return err; @@ -432,7 +434,7 @@ void ext4_htree_free_dir_info(struct dir_private_info *p) int ext4_htree_store_dirent(struct file *dir_file, __u32 hash, __u32 minor_hash, struct ext4_dir_entry_2 *dirent, - struct ext4_str *ent_name) + struct fscrypt_str *ent_name) { struct rb_node **p, *parent = NULL; struct fname *fname, *new_fn; @@ -609,7 +611,7 @@ finished: static int ext4_dir_open(struct inode * inode, struct file * filp) { if (ext4_encrypted_inode(inode)) - return ext4_get_encryption_info(inode) ? -EACCES : 0; + return fscrypt_get_encryption_info(inode) ? -EACCES : 0; return 0; } |