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HADOOP-12716. KerberosAuthenticator#doSpnegoSequence use incorrect class to determine isKeyTab in JDK8. Contributed by Xiaoyu Yao.

This commit is contained in:
cnauroth 2016-02-24 13:55:39 -08:00
parent 9e0f7b8b69
commit d6b181c6fa
4 changed files with 35 additions and 7 deletions
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6
hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/KerberosAuthenticator.java
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@ -24,8 +24,6 @@
import org.slf4j.LoggerFactory;
import javax.security.auth.Subject;
import javax.security.auth.kerberos.KerberosKey;
import javax.security.auth.kerberos.KerberosTicket;
import javax.security.auth.login.AppConfigurationEntry;
import javax.security.auth.login.Configuration;
import javax.security.auth.login.LoginContext;
@ -272,8 +270,8 @@ private void doSpnegoSequence(AuthenticatedURL.Token token) throws IOException,
AccessControlContext context = AccessController.getContext();
Subject subject = Subject.getSubject(context);
if (subject == null
|| (subject.getPrivateCredentials(KerberosKey.class).isEmpty()
&& subject.getPrivateCredentials(KerberosTicket.class).isEmpty())) {
|| (!KerberosUtil.hasKerberosKeyTab(subject)
&& !KerberosUtil.hasKerberosTicket(subject))) {
LOG.debug("No subject in context, logging in");
subject = new Subject();
LoginContext login = new LoginContext("", subject,

28
hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/KerberosUtil.java
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@ -38,6 +38,10 @@
import org.ietf.jgss.GSSException;
import org.ietf.jgss.Oid;
import javax.security.auth.Subject;
import javax.security.auth.kerberos.KerberosTicket;
import javax.security.auth.kerberos.KeyTab;
public class KerberosUtil {
/* Return the Kerberos login module name */
@ -227,4 +231,28 @@ public static final String[] getPrincipalNames(String keytab,
}
return principals;
}
/**
* Check if the subject contains Kerberos keytab related objects.
* The Kerberos keytab object attached in subject has been changed
* from KerberosKey (JDK 7) to KeyTab (JDK 8)
*
*
* @param subject subject to be checked
* @return true if the subject contains Kerberos keytab
*/
public static boolean hasKerberosKeyTab(Subject subject) {
return !subject.getPrivateCredentials(KeyTab.class).isEmpty();
}
/**
* Check if the subject contains Kerberos ticket.
*
*
* @param subject subject to be checked
* @return true if the subject contains Kerberos ticket
*/
public static boolean hasKerberosTicket(Subject subject) {
return !subject.getPrivateCredentials(KerberosTicket.class).isEmpty();
}
}

3
hadoop-common-project/hadoop-common/CHANGES.txt
View File

@ -1744,6 +1744,9 @@ Release 2.8.0 - UNRELEASED
HADOOP-12878. KMS SPNEGO sequence does not work with WEBHDFS. (xyao)
HADOOP-12716. KerberosAuthenticator#doSpnegoSequence use incorrect class to
determine isKeyTab in JDK8. (Xiaoyu Yao via cnauroth)
Release 2.7.3 - UNRELEASED
INCOMPATIBLE CHANGES

5
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java
View File

@ -48,7 +48,6 @@
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.kerberos.KerberosPrincipal;
import javax.security.auth.kerberos.KerberosTicket;
import javax.security.auth.kerberos.KeyTab;
import javax.security.auth.login.AppConfigurationEntry;
import javax.security.auth.login.AppConfigurationEntry.LoginModuleControlFlag;
import javax.security.auth.login.LoginContext;
@ -624,8 +623,8 @@ private void setLogin(LoginContext login) {
UserGroupInformation(Subject subject) {
this.subject = subject;
this.user = subject.getPrincipals(User.class).iterator().next();
this.isKeytab = !subject.getPrivateCredentials(KeyTab.class).isEmpty();
this.isKrbTkt = !subject.getPrivateCredentials(KerberosTicket.class).isEmpty();
this.isKeytab = KerberosUtil.hasKerberosKeyTab(subject);
this.isKrbTkt = KerberosUtil.hasKerberosTicket(subject);
}
/**