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Commit c6f66cb7 authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: deny accessing encryption policy if encryption is off 



This patch adds missing feature check in encryption ioctl interface.

Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent f3c3ffad

fs/f2fs/file.c

+5 −0
Original line number Diff line number Diff line
@@ -1912,6 +1912,9 @@ 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);
@@ -1919,6 +1922,8 @@ 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);

}