ubifs: Implement directory open operation

We need the ->open() hook to load the crypto context
which is needed for all crypto operations within that
directory.

Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 2315cb8..4778175 100644 (file)
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1410,6 +1410,14 @@ int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
        return 0;
 }
 
+static int ubifs_dir_open(struct inode *dir, struct file *file)
+{
+       if (ubifs_crypt_is_encrypted(dir))
+               return fscrypt_get_encryption_info(dir) ? -EACCES : 0;
+
+       return 0;
+}
+
 const struct inode_operations ubifs_dir_inode_operations = {
        .lookup      = ubifs_lookup,
        .create      = ubifs_create,
@@ -1436,6 +1444,7 @@ const struct file_operations ubifs_dir_operations = {
        .iterate_shared = ubifs_readdir,
        .fsync          = ubifs_fsync,
        .unlocked_ioctl = ubifs_ioctl,
+       .open           = ubifs_dir_open,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = ubifs_compat_ioctl,
 #endif