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| author | Chao Yu <yuchao0@huawei.com> | 2017-11-14 19:28:42 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-11-15 08:30:19 -0800 |
| commit | ead710b7d82dc9e8184e10871c155a3ed8b3f673 (patch) | |
| tree | 578b94687f1eb5cd3c27f722c0d341f41a5688e6 /fs/f2fs | |
| parent | 812c60564ca721a2527ed069c9221ec348368fd7 (diff) | |
| download | linux-ead710b7d82dc9e8184e10871c155a3ed8b3f673.tar.gz | |
f2fs: deny accessing encryption policy if encryption is off
This patch adds missing feature check in encryption ioctl interface. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/file.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 41a6f1f70416..25038cfc9217 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1928,6 +1928,9 @@ static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg) { struct inode *inode = file_inode(filp); + if (!f2fs_sb_has_crypto(inode->i_sb)) + return -EOPNOTSUPP; + f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); return fscrypt_ioctl_set_policy(filp, (const void __user *)arg); @@ -1935,6 +1938,8 @@ static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg) static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg) { + if (!f2fs_sb_has_crypto(file_inode(filp)->i_sb)) + return -EOPNOTSUPP; return fscrypt_ioctl_get_policy(filp, (void __user *)arg); } |