big-data/hadoop
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

HADOOP-8878. Uppercase namenode hostname causes hadoop dfs calls with webhdfs filesystem and fsck to fail when security is on. Contributed by Arpit Gupta.

Browse Source 
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1396922 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Suresh Srinivas 2012-10-11 06:30:40 +00:00
parent 33c16f2a24
commit bfce95d463
4 changed files with 99 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/KerberosAuthenticator.java
View File

@ -232,7 +232,8 @@ public Void run() throws Exception {
GSSContext gssContext = null;
try {
GSSManager gssManager = GSSManager.getInstance();
String servicePrincipal = "HTTP/" + KerberosAuthenticator.this.url.getHost();
String servicePrincipal = KerberosUtil.getServicePrincipal("HTTP",
KerberosAuthenticator.this.url.getHost());
Oid oid = KerberosUtil.getOidInstance("NT_GSS_KRB5_PRINCIPAL");
GSSName serviceName = gssManager.createName(servicePrincipal,
oid);

32
hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java
View File

@ -20,6 +20,9 @@
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Locale;
import org.ietf.jgss.GSSException;
import org.ietf.jgss.Oid;
@ -65,4 +68,33 @@ public static String getDefaultRealm()
new Class[0]);
return (String)getDefaultRealmMethod.invoke(kerbConf, new Object[0]);
}
/* Return fqdn of the current host */
static String getLocalHostName() throws UnknownHostException {
return InetAddress.getLocalHost().getCanonicalHostName();
}
/**
* Create Kerberos principal for a given service and hostname. It converts
* hostname to lower case. If hostname is null or "0.0.0.0", it uses
* dynamically looked-up fqdn of the current host instead.
*
* @param service
* Service for which you want to generate the principal.
* @param hostname
* Fully-qualified domain name.
* @return Converted Kerberos principal name.
* @throws UnknownHostException
* If no IP address for the local host could be found.
*/
public static final String getServicePrincipal(String service, String hostname)
throws UnknownHostException {
String fqdn = hostname;
if (null == fqdn || fqdn.equals("") || fqdn.equals("0.0.0.0")) {
fqdn = getLocalHostName();
}
// convert hostname to lowercase as kerberos does not work with hostnames
// with uppercase characters.
return service + "/" + fqdn.toLowerCase(Locale.US);
}
}

55
hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/util/TestKerberosUtil.java Normal file
View File

@ -0,0 +1,55 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with this
* work for additional information regarding copyright ownership. The ASF
* licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.apache.hadoop.security.authentication.util;
import static org.junit.Assert.*;
import java.io.IOException;
import org.apache.hadoop.security.authentication.util.KerberosUtil;
import org.junit.Test;
public class TestKerberosUtil {
@Test
public void testGetServerPrincipal() throws IOException {
String service = "TestKerberosUtil";
String localHostname = KerberosUtil.getLocalHostName();
String testHost = "FooBar";
// send null hostname
assertEquals("When no hostname is sent",
service + "/" + localHostname.toLowerCase(),
KerberosUtil.getServicePrincipal(service, null));
// send empty hostname
assertEquals("When empty hostname is sent",
service + "/" + localHostname.toLowerCase(),
KerberosUtil.getServicePrincipal(service, ""));
// send 0.0.0.0 hostname
assertEquals("When 0.0.0.0 hostname is sent",
service + "/" + localHostname.toLowerCase(),
KerberosUtil.getServicePrincipal(service, "0.0.0.0"));
// send uppercase hostname
assertEquals("When uppercase hostname is sent",
service + "/" + testHost.toLowerCase(),
KerberosUtil.getServicePrincipal(service, testHost));
// send lowercase hostname
assertEquals("When lowercase hostname is sent",
service + "/" + testHost.toLowerCase(),
KerberosUtil.getServicePrincipal(service, testHost.toLowerCase()));
}
}

11
hadoop-common-project/hadoop-common/CHANGES.txt
View File

@ -325,7 +325,16 @@ Release 2.0.3-alpha - Unreleased
HADOOP-8756. Fix SEGV when libsnappy is in java.library.path but
not LD_LIBRARY_PATH. (Colin Patrick McCabe via eli)
HADOOP-8881. FileBasedKeyStoresFactory initialization logging should be debug not info. (tucu)
HADOOP-8881. FileBasedKeyStoresFactory initialization logging should
be debug not info. (tucu)
HADOOP-8913. hadoop-metrics2.properties should give units in comment
for sampling period. (Sandy Ryza via suresh)
HADOOP-8878. Uppercase namenode hostname causes hadoop dfs calls with
webhdfs filesystem and fsck to fail when security is on.
(Arpit Gupta via suresh)
Release 2.0.2-alpha - 2012-09-07