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HADOOP-11151. Automatically refresh auth token and retry on auth failure. Contributed by Arun Suresh. 

(cherry picked from commit 2d8e6e2c4a)
This commit is contained in:
Andrew Wang 2014-10-02 19:54:57 -07:00
parent 6f4c77409b
commit 9ebff016c2
5 changed files with 173 additions and 13 deletions
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5
hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/client/AuthenticatedURL.java
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@ -250,7 +250,10 @@ public class AuthenticatedURL {
* @throws AuthenticationException if an authentication exception occurred.
*/
public static void extractToken(HttpURLConnection conn, Token token) throws IOException, AuthenticationException {
if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
int respCode = conn.getResponseCode();
if (respCode == HttpURLConnection.HTTP_OK
|| respCode == HttpURLConnection.HTTP_CREATED
|| respCode == HttpURLConnection.HTTP_ACCEPTED) {
Map<String, List<String>> headers = conn.getHeaderFields();
List<String> cookies = headers.get("Set-Cookie");
if (cookies != null) {

3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -448,6 +448,9 @@ Release 2.6.0 - UNRELEASED
HADOOP-11160. Fix typo in nfs3 server duplicate entry reporting.
(Charles Lamb via wheat9)
HADOOP-11151. Automatically refresh auth token and retry on auth failure.
(Arun Suresh via wang)
BREAKDOWN OF HDFS-6134 AND HADOOP-10150 SUBTASKS AND RELATED JIRAS
HADOOP-10734. Implement high-performance secure random number sources.

44
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/kms/KMSClientProvider.java
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@ -29,6 +29,7 @@ import org.apache.hadoop.fs.Path;
import org.apache.hadoop.security.Credentials;
import org.apache.hadoop.security.ProviderUtils;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.authentication.client.AuthenticatedURL;
import org.apache.hadoop.security.authentication.client.AuthenticationException;
import org.apache.hadoop.security.authentication.client.ConnectionConfigurator;
import org.apache.hadoop.security.ssl.SSLFactory;
@ -76,6 +77,8 @@ import com.google.common.base.Preconditions;
public class KMSClientProvider extends KeyProvider implements CryptoExtension,
KeyProviderDelegationTokenExtension.DelegationTokenExtension {
private static final String ANONYMOUS_REQUESTS_DISALLOWED = "Anonymous requests are disallowed";
public static final String TOKEN_KIND = "kms-dt";
public static final String SCHEME_NAME = "kms";
@ -97,6 +100,13 @@ public class KMSClientProvider extends KeyProvider implements CryptoExtension,
public static final String TIMEOUT_ATTR = CONFIG_PREFIX + "timeout";
public static final int DEFAULT_TIMEOUT = 60;
/* Number of times to retry authentication in the event of auth failure
* (normally happens due to stale authToken)
*/
public static final String AUTH_RETRY = CONFIG_PREFIX
+ "authentication.retry-count";
public static final int DEFAULT_AUTH_RETRY = 1;
private final ValueQueue<EncryptedKeyVersion> encKeyVersionQueue;
private class EncryptedQueueRefiller implements
@ -238,6 +248,7 @@ public class KMSClientProvider extends KeyProvider implements CryptoExtension,
private ConnectionConfigurator configurator;
private DelegationTokenAuthenticatedURL.Token authToken;
private UserGroupInformation loginUgi;
private final int authRetry;
@Override
public String toString() {
@ -296,6 +307,7 @@ public class KMSClientProvider extends KeyProvider implements CryptoExtension,
}
}
int timeout = conf.getInt(TIMEOUT_ATTR, DEFAULT_TIMEOUT);
authRetry = conf.getInt(AUTH_RETRY, DEFAULT_AUTH_RETRY);
configurator = new TimeoutConnConfigurator(timeout, sslFactory);
encKeyVersionQueue =
new ValueQueue<KeyProviderCryptoExtension.EncryptedKeyVersion>(
@ -416,7 +428,12 @@ public class KMSClientProvider extends KeyProvider implements CryptoExtension,
}
private <T> T call(HttpURLConnection conn, Map jsonOutput,
int expectedResponse, Class<T> klass)
int expectedResponse, Class<T> klass) throws IOException {
return call(conn, jsonOutput, expectedResponse, klass, authRetry);
}
private <T> T call(HttpURLConnection conn, Map jsonOutput,
int expectedResponse, Class<T> klass, int authRetryCount)
throws IOException {
T ret = null;
try {
@ -427,13 +444,36 @@ public class KMSClientProvider extends KeyProvider implements CryptoExtension,
conn.getInputStream().close();
throw ex;
}
if (conn.getResponseCode() == HttpURLConnection.HTTP_FORBIDDEN) {
if ((conn.getResponseCode() == HttpURLConnection.HTTP_FORBIDDEN
&& conn.getResponseMessage().equals(ANONYMOUS_REQUESTS_DISALLOWED))
|| conn.getResponseCode() == HttpURLConnection.HTTP_UNAUTHORIZED) {
// Ideally, this should happen only when there is an Authentication
// failure. Unfortunately, the AuthenticationFilter returns 403 when it
// cannot authenticate (Since a 401 requires Server to send
// WWW-Authenticate header as well)..
KMSClientProvider.this.authToken =
new DelegationTokenAuthenticatedURL.Token();
KMSClientProvider.this.loginUgi =
UserGroupInformation.getCurrentUser();
if (authRetryCount > 0) {
String contentType = conn.getRequestProperty(CONTENT_TYPE);
String requestMethod = conn.getRequestMethod();
URL url = conn.getURL();
conn = createConnection(url, requestMethod);
conn.setRequestProperty(CONTENT_TYPE, contentType);
return call(conn, jsonOutput, expectedResponse, klass,
authRetryCount - 1);
}
}
try {
AuthenticatedURL.extractToken(conn, authToken);
} catch (AuthenticationException e) {
// Ignore the AuthExceptions.. since we are just using the method to
// extract and set the authToken.. (Workaround till we actually fix
// AuthenticatedURL properly to set authToken post initialization)
} finally {
KMSClientProvider.this.loginUgi =
UserGroupInformation.getCurrentUser();
}
HttpExceptionUtils.validateResponse(conn, expectedResponse);
if (APPLICATION_JSON_MIME.equalsIgnoreCase(conn.getContentType())

7
hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
View File

@ -1599,6 +1599,13 @@ for ldap providers in the same way as above does.
</property>
<!--- KMSClientProvider configurations -->
<property>
<name>hadoop.security.kms.client.authentication.retry-count</name>
<value>1</value>
<description>
Number of time to retry connecting to KMS on authentication failure
</description>
</property>
<property>
<name>hadoop.security.kms.client.encrypted.key.cache.size</name>
<value>500</value>

127
hadoop-common-project/hadoop-kms/src/test/java/org/apache/hadoop/crypto/key/kms/server/TestKMS.java
View File

@ -32,8 +32,10 @@ import org.apache.hadoop.minikdc.MiniKdc;
import org.apache.hadoop.security.Credentials;
import org.apache.hadoop.security.SecurityUtil;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.authentication.client.AuthenticatedURL;
import org.apache.hadoop.security.authorize.AuthorizationException;
import org.apache.hadoop.security.ssl.KeyStoreTestUtil;
import org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticatedURL;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
@ -49,6 +51,8 @@ import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
@ -791,12 +795,24 @@ public class TestKMS {
}
@Test
public void testKMSRestart() throws Exception {
public void testKMSRestartKerberosAuth() throws Exception {
doKMSRestart(true);
}
@Test
public void testKMSRestartSimpleAuth() throws Exception {
doKMSRestart(false);
}
public void doKMSRestart(boolean useKrb) throws Exception {
Configuration conf = new Configuration();
conf.set("hadoop.security.authentication", "kerberos");
UserGroupInformation.setConfiguration(conf);
final File testDir = getTestDir();
conf = createBaseKMSConf(testDir);
if (useKrb) {
conf.set("hadoop.kms.authentication.type", "kerberos");
}
conf.set("hadoop.kms.authentication.kerberos.keytab",
keytab.getAbsolutePath());
conf.set("hadoop.kms.authentication.kerberos.principal", "HTTP/localhost");
@ -855,15 +871,6 @@ public class TestKMS {
new PrivilegedExceptionAction<Void>() {
@Override
public Void run() throws Exception {
try {
retKp.createKey("k2", new byte[16],
new KeyProvider.Options(conf));
Assert.fail("Should fail first time !!");
} catch (IOException e) {
String message = e.getMessage();
Assert.assertTrue("Should be a 403 error : " + message,
message.contains("403"));
}
retKp.createKey("k2", new byte[16],
new KeyProvider.Options(conf));
retKp.createKey("k3", new byte[16],
@ -876,6 +883,106 @@ public class TestKMS {
});
}
@Test
public void testKMSAuthFailureRetry() throws Exception {
Configuration conf = new Configuration();
conf.set("hadoop.security.authentication", "kerberos");
UserGroupInformation.setConfiguration(conf);
final File testDir = getTestDir();
conf = createBaseKMSConf(testDir);
conf.set("hadoop.kms.authentication.kerberos.keytab",
keytab.getAbsolutePath());
conf.set("hadoop.kms.authentication.kerberos.principal", "HTTP/localhost");
conf.set("hadoop.kms.authentication.kerberos.name.rules", "DEFAULT");
for (KMSACLs.Type type : KMSACLs.Type.values()) {
conf.set(type.getAclConfigKey(), type.toString());
}
conf.set(KMSACLs.Type.CREATE.getAclConfigKey(),
KMSACLs.Type.CREATE.toString() + ",SET_KEY_MATERIAL");
conf.set(KMSACLs.Type.ROLLOVER.getAclConfigKey(),
KMSACLs.Type.ROLLOVER.toString() + ",SET_KEY_MATERIAL");
conf.set(KeyAuthorizationKeyProvider.KEY_ACL + "k0.ALL", "*");
conf.set(KeyAuthorizationKeyProvider.KEY_ACL + "k1.ALL", "*");
conf.set(KeyAuthorizationKeyProvider.KEY_ACL + "k2.ALL", "*");
conf.set(KeyAuthorizationKeyProvider.KEY_ACL + "k3.ALL", "*");
conf.set(KeyAuthorizationKeyProvider.KEY_ACL + "k4.ALL", "*");
writeConf(testDir, conf);
runServer(null, null, testDir,
new KMSCallable<Void>() {
@Override
public Void call() throws Exception {
final Configuration conf = new Configuration();
conf.setInt(KeyProvider.DEFAULT_BITLENGTH_NAME, 128);
final URI uri = createKMSUri(getKMSUrl());
doAs("SET_KEY_MATERIAL",
new PrivilegedExceptionAction<Void>() {
@Override
public Void run() throws Exception {
KMSClientProvider kp = new KMSClientProvider(uri, conf);
kp.createKey("k1", new byte[16],
new KeyProvider.Options(conf));
makeAuthTokenStale(kp);
kp.createKey("k2", new byte[16],
new KeyProvider.Options(conf));
return null;
}
});
return null;
}
});
// Test retry count
runServer(null, null, testDir,
new KMSCallable<Void>() {
@Override
public Void call() throws Exception {
final Configuration conf = new Configuration();
conf.setInt(KeyProvider.DEFAULT_BITLENGTH_NAME, 128);
conf.setInt(KMSClientProvider.AUTH_RETRY, 0);
final URI uri = createKMSUri(getKMSUrl());
doAs("SET_KEY_MATERIAL",
new PrivilegedExceptionAction<Void>() {
@Override
public Void run() throws Exception {
KMSClientProvider kp = new KMSClientProvider(uri, conf);
kp.createKey("k3", new byte[16],
new KeyProvider.Options(conf));
makeAuthTokenStale(kp);
try {
kp.createKey("k4", new byte[16],
new KeyProvider.Options(conf));
Assert.fail("Shoud fail since retry count == 0");
} catch (IOException e) {
Assert.assertTrue(
"HTTP exception must be a 403 : " + e.getMessage(), e
.getMessage().contains("403"));
}
return null;
}
});
return null;
}
});
}
private void makeAuthTokenStale(KMSClientProvider kp) throws Exception {
Field tokF = KMSClientProvider.class.getDeclaredField("authToken");
tokF.setAccessible(true);
DelegationTokenAuthenticatedURL.Token delToken =
(DelegationTokenAuthenticatedURL.Token) tokF.get(kp);
String oldTokStr = delToken.toString();
Method setM =
AuthenticatedURL.Token.class.getDeclaredMethod("set", String.class);
setM.setAccessible(true);
String newTokStr = oldTokStr.replaceAll("e=[^&]*", "e=1000");
setM.invoke(((AuthenticatedURL.Token)delToken), newTokStr);
}
@Test
public void testACLs() throws Exception {
Configuration conf = new Configuration();