1 /**
2  * Licensed to the Apache Software Foundation (ASF) under one
3  * or more contributor license agreements.  See the NOTICE file
4  * distributed with this work for additional information
5  * regarding copyright ownership.  The ASF licenses this file
6  * to you under the Apache License, Version 2.0 (the
7  * "License"); you may not use this file except in compliance
8  * with the License.  You may obtain a copy of the License at
9  *
10  *     http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 package org.apache.hadoop.hdfs.nfs.mount;
19 
20 import java.io.IOException;
21 import java.net.DatagramSocket;
22 
23 import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
24 import org.apache.hadoop.mount.MountdBase;
25 
26 /**
27  * Main class for starting mountd daemon. This daemon implements the NFS
28  * mount protocol. When receiving a MOUNT request from an NFS client, it checks
29  * the request against the list of currently exported file systems. If the
30  * client is permitted to mount the file system, rpc.mountd obtains a file
31  * handle for requested directory and returns it to the client.
32  */
33 public class Mountd extends MountdBase {
34 
Mountd(NfsConfiguration config, DatagramSocket registrationSocket, boolean allowInsecurePorts)35   public Mountd(NfsConfiguration config, DatagramSocket registrationSocket,
36       boolean allowInsecurePorts) throws IOException {
37     super(new RpcProgramMountd(config, registrationSocket, allowInsecurePorts));
38   }
39 
main(String[] args)40   public static void main(String[] args) throws IOException {
41     NfsConfiguration config = new NfsConfiguration();
42     Mountd mountd = new Mountd(config, null, true);
43     mountd.start(true);
44   }
45 }
46