From 4637fd11fff7ddca1a1d7d27d2fbfc4dcb8e9791 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Wed, 27 May 2015 15:27:49 +0800 Subject: [PATCH] f2fs crypto: do not set encryption policy for non-directory by ioctl Encryption policy should only be set to an empty directory through ioctl, This patch add a judgement condition to verify type of the target inode to avoid incorrectly configuring for non-directory. Additionally, remove unneeded inline data conversion since regular or symlink file should not be processed here. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/crypto_policy.c | 3 +++ fs/f2fs/file.c | 6 ------ 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/fs/f2fs/crypto_policy.c b/fs/f2fs/crypto_policy.c index 30b0b73d4200..d4a96af513c2 100644 --- a/fs/f2fs/crypto_policy.c +++ b/fs/f2fs/crypto_policy.c @@ -92,6 +92,9 @@ int f2fs_process_policy(const struct f2fs_encryption_policy *policy, if (policy->version != 0) return -EINVAL; + if (!S_ISDIR(inode->i_mode)) + return -EINVAL; + if (!f2fs_inode_has_encryption_context(inode)) { if (!f2fs_empty_dir(inode)) return -ENOTEMPTY; diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index cb0d6b68020a..6b4ba7429dba 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1395,12 +1395,6 @@ static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg) sizeof(policy))) return -EFAULT; - if (f2fs_has_inline_data(inode)) { - int ret = f2fs_convert_inline_inode(inode); - if (ret) - return ret; - } - return f2fs_process_policy(&policy, inode); #else return -EOPNOTSUPP;