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ext4 crypto: make sure the encryption info is initialized on opendir(2)

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Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2015-05-31 13:34:57 -04:00
parent 5555702955
commit 6bc445e0ff
1 changed files with 8 additions and 0 deletions
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8
fs/ext4/dir.c
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@ -593,6 +593,13 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
return 0;
}
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 0;
}
static int ext4_release_dir(struct inode *inode, struct file *filp)
{
if (filp->private_data)
@ -635,5 +642,6 @@ const struct file_operations ext4_dir_operations = {
.compat_ioctl = ext4_compat_ioctl,
#endif
.fsync = ext4_sync_file,
.open = ext4_dir_open,
.release = ext4_release_dir,
};