Author: tgraves
Date: Thu Jan 31 22:38:32 2013
New Revision: 1441236
URL: http://svn.apache.org/viewvc?rev=1441236&view=rev
Log:
HADOOP-8878. uppercase namenode hostname causes hadoop dfs calls with webhdfs
filesystem and fsck to fail when security is on (Arpit Gupta via tgraves)
Added:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/util/TestKerberosUtil.java
Modified:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/KerberosAuthenticator.java
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
Modified:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/KerberosAuthenticator.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/KerberosAuthenticator.java?rev=1441236&r1=1441235&r2=1441236&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/KerberosAuthenticator.java
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/KerberosAuthenticator.java
Thu Jan 31 22:38:32 2013
@@ -194,7 +194,8 @@ public class KerberosAuthenticator imple
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);
Modified:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java?rev=1441236&r1=1441235&r2=1441236&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java
Thu Jan 31 22:38:32 2013
@@ -20,6 +20,9 @@ package org.apache.hadoop.security.authe
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 class KerberosUtil {
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);
+ }
}
Added:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/util/TestKerberosUtil.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/util/TestKerberosUtil.java?rev=1441236&view=auto
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/util/TestKerberosUtil.java
(added)
+++
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth/src/test/java/org/apache/hadoop/security/authentication/util/TestKerberosUtil.java
Thu Jan 31 22:38:32 2013
@@ -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()));
+ }
+}
\ No newline at end of file
Modified:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt?rev=1441236&r1=1441235&r2=1441236&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
Thu Jan 31 22:38:32 2013
@@ -46,6 +46,10 @@ Release 0.23.7 - UNRELEASED
HADOOP-8251. Fix SecurityUtil.fetchServiceTicket after HADOOP-6941 (todd
via tgraves)
+ HADOOP-8878. uppercase namenode hostname causes hadoop dfs calls with
+ webhdfs filesystem and fsck to fail when security is on (Arpit Gupta
+ via tgraves)
+
Release 0.23.6 - UNRELEASED
INCOMPATIBLE CHANGES
