io.netty.handler.ssl.ReferenceCountedOpenSslClientContext Maven / Gradle / Ivy
/*
* Copyright 2016 The Netty Project
*
* The Netty Project 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 io.netty.handler.ssl;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import io.netty.internal.tcnative.CertificateRequestedCallback;
import io.netty.internal.tcnative.SSL;
import io.netty.internal.tcnative.SSLContext;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import java.util.HashSet;
import java.util.Set;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLHandshakeException;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509ExtendedTrustManager;
import javax.net.ssl.X509TrustManager;
import javax.security.auth.x500.X500Principal;
/**
* A client-side {@link SslContext} which uses OpenSSL's SSL/TLS implementation.
* Instances of this class must be {@link #release() released} or else native memory will leak!
*
*
Instances of this class must not be released before any {@link ReferenceCountedOpenSslEngine}
* which depends upon the instance of this class is released. Otherwise if any method of
* {@link ReferenceCountedOpenSslEngine} is called which uses this class's JNI resources the JVM may crash.
*/
public final class ReferenceCountedOpenSslClientContext extends ReferenceCountedOpenSslContext {
private static final InternalLogger logger =
InternalLoggerFactory.getInstance(ReferenceCountedOpenSslClientContext.class);
private final OpenSslSessionContext sessionContext;
ReferenceCountedOpenSslClientContext(X509Certificate[] trustCertCollection, TrustManagerFactory trustManagerFactory,
X509Certificate[] keyCertChain, PrivateKey key, String keyPassword,
KeyManagerFactory keyManagerFactory, Iterable ciphers,
CipherSuiteFilter cipherFilter, ApplicationProtocolConfig apn,
String[] protocols, long sessionCacheSize, long sessionTimeout,
boolean enableOcsp) throws SSLException {
super(ciphers, cipherFilter, apn, sessionCacheSize, sessionTimeout, SSL.SSL_MODE_CLIENT, keyCertChain,
ClientAuth.NONE, protocols, false, enableOcsp, true);
boolean success = false;
try {
sessionContext = newSessionContext(this, ctx, engineMap, trustCertCollection, trustManagerFactory,
keyCertChain, key, keyPassword, keyManagerFactory);
success = true;
} finally {
if (!success) {
release();
}
}
}
@Override
OpenSslKeyMaterialManager keyMaterialManager() {
return null;
}
@Override
public OpenSslSessionContext sessionContext() {
return sessionContext;
}
static OpenSslSessionContext newSessionContext(ReferenceCountedOpenSslContext thiz, long ctx,
OpenSslEngineMap engineMap,
X509Certificate[] trustCertCollection,
TrustManagerFactory trustManagerFactory,
X509Certificate[] keyCertChain, PrivateKey key, String keyPassword,
KeyManagerFactory keyManagerFactory) throws SSLException {
if (key == null && keyCertChain != null || key != null && keyCertChain == null) {
throw new IllegalArgumentException(
"Either both keyCertChain and key needs to be null or none of them");
}
OpenSslKeyMaterialProvider keyMaterialProvider = null;
try {
try {
if (!OpenSsl.useKeyManagerFactory()) {
if (keyManagerFactory != null) {
throw new IllegalArgumentException(
"KeyManagerFactory not supported");
}
if (keyCertChain != null/* && key != null*/) {
setKeyMaterial(ctx, keyCertChain, key, keyPassword);
}
} else {
// javadocs state that keyManagerFactory has precedent over keyCertChain
if (keyManagerFactory == null && keyCertChain != null) {
char[] keyPasswordChars = keyStorePassword(keyPassword);
KeyStore ks = buildKeyStore(keyCertChain, key, keyPasswordChars);
if (ks.aliases().hasMoreElements()) {
keyManagerFactory = new OpenSslX509KeyManagerFactory();
} else {
keyManagerFactory = new OpenSslCachingX509KeyManagerFactory(
KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm()));
}
keyManagerFactory.init(ks, keyPasswordChars);
keyMaterialProvider = providerFor(keyManagerFactory, keyPassword);
} else if (keyManagerFactory != null) {
keyMaterialProvider = providerFor(keyManagerFactory, keyPassword);
}
if (keyMaterialProvider != null) {
OpenSslKeyMaterialManager materialManager = new OpenSslKeyMaterialManager(keyMaterialProvider);
SSLContext.setCertRequestedCallback(ctx, new OpenSslCertificateRequestedCallback(
engineMap, materialManager));
}
}
} catch (Exception e) {
throw new SSLException("failed to set certificate and key", e);
}
SSLContext.setVerify(ctx, SSL.SSL_CVERIFY_NONE, VERIFY_DEPTH);
try {
if (trustCertCollection != null) {
trustManagerFactory = buildTrustManagerFactory(trustCertCollection, trustManagerFactory);
} else if (trustManagerFactory == null) {
trustManagerFactory = TrustManagerFactory.getInstance(
TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init((KeyStore) null);
}
final X509TrustManager manager = chooseTrustManager(trustManagerFactory.getTrustManagers());
// IMPORTANT: The callbacks set for verification must be static to prevent memory leak as
// otherwise the context can never be collected. This is because the JNI code holds
// a global reference to the callbacks.
//
// See https://github.com/netty/netty/issues/5372
// Use this to prevent an error when running on java < 7
if (useExtendedTrustManager(manager)) {
SSLContext.setCertVerifyCallback(ctx,
new ExtendedTrustManagerVerifyCallback(engineMap, (X509ExtendedTrustManager) manager));
} else {
SSLContext.setCertVerifyCallback(ctx, new TrustManagerVerifyCallback(engineMap, manager));
}
} catch (Exception e) {
if (keyMaterialProvider != null) {
keyMaterialProvider.destroy();
}
throw new SSLException("unable to setup trustmanager", e);
}
OpenSslClientSessionContext context = new OpenSslClientSessionContext(thiz, keyMaterialProvider);
keyMaterialProvider = null;
return context;
} finally {
if (keyMaterialProvider != null) {
keyMaterialProvider.destroy();
}
}
}
// No cache is currently supported for client side mode.
static final class OpenSslClientSessionContext extends OpenSslSessionContext {
OpenSslClientSessionContext(ReferenceCountedOpenSslContext context, OpenSslKeyMaterialProvider provider) {
super(context, provider);
}
@Override
public void setSessionTimeout(int seconds) {
if (seconds < 0) {
throw new IllegalArgumentException();
}
}
@Override
public int getSessionTimeout() {
return 0;
}
@Override
public void setSessionCacheSize(int size) {
if (size < 0) {
throw new IllegalArgumentException();
}
}
@Override
public int getSessionCacheSize() {
return 0;
}
@Override
public void setSessionCacheEnabled(boolean enabled) {
// ignored
}
@Override
public boolean isSessionCacheEnabled() {
return false;
}
}
private static final class TrustManagerVerifyCallback extends AbstractCertificateVerifier {
private final X509TrustManager manager;
TrustManagerVerifyCallback(OpenSslEngineMap engineMap, X509TrustManager manager) {
super(engineMap);
this.manager = manager;
}
@Override
void verify(ReferenceCountedOpenSslEngine engine, X509Certificate[] peerCerts, String auth)
throws Exception {
manager.checkServerTrusted(peerCerts, auth);
}
}
private static final class ExtendedTrustManagerVerifyCallback extends AbstractCertificateVerifier {
private final X509ExtendedTrustManager manager;
ExtendedTrustManagerVerifyCallback(OpenSslEngineMap engineMap, X509ExtendedTrustManager manager) {
super(engineMap);
this.manager = manager;
}
@Override
void verify(ReferenceCountedOpenSslEngine engine, X509Certificate[] peerCerts, String auth)
throws Exception {
manager.checkServerTrusted(peerCerts, auth, engine);
}
}
private static final class OpenSslCertificateRequestedCallback implements CertificateRequestedCallback {
private final OpenSslEngineMap engineMap;
private final OpenSslKeyMaterialManager keyManagerHolder;
OpenSslCertificateRequestedCallback(OpenSslEngineMap engineMap, OpenSslKeyMaterialManager keyManagerHolder) {
this.engineMap = engineMap;
this.keyManagerHolder = keyManagerHolder;
}
@Override
public void requested(
long ssl, long certOut, long keyOut, byte[] keyTypeBytes, byte[][] asn1DerEncodedPrincipals) {
final ReferenceCountedOpenSslEngine engine = engineMap.get(ssl);
try {
final Set keyTypesSet = supportedClientKeyTypes(keyTypeBytes);
final String[] keyTypes = keyTypesSet.toArray(new String[0]);
final X500Principal[] issuers;
if (asn1DerEncodedPrincipals == null) {
issuers = null;
} else {
issuers = new X500Principal[asn1DerEncodedPrincipals.length];
for (int i = 0; i < asn1DerEncodedPrincipals.length; i++) {
issuers[i] = new X500Principal(asn1DerEncodedPrincipals[i]);
}
}
keyManagerHolder.setKeyMaterialClientSide(engine, certOut, keyOut, keyTypes, issuers);
} catch (Throwable cause) {
logger.debug("request of key failed", cause);
SSLHandshakeException e = new SSLHandshakeException("General OpenSslEngine problem");
e.initCause(cause);
engine.handshakeException = e;
}
}
/**
* Gets the supported key types for client certificates.
*
* @param clientCertificateTypes {@code ClientCertificateType} values provided by the server.
* See https://www.ietf.org/assignments/tls-parameters/tls-parameters.xml.
* @return supported key types that can be used in {@code X509KeyManager.chooseClientAlias} and
* {@code X509ExtendedKeyManager.chooseEngineClientAlias}.
*/
private static Set supportedClientKeyTypes(byte[] clientCertificateTypes) {
Set result = new HashSet(clientCertificateTypes.length);
for (byte keyTypeCode : clientCertificateTypes) {
String keyType = clientKeyType(keyTypeCode);
if (keyType == null) {
// Unsupported client key type -- ignore
continue;
}
result.add(keyType);
}
return result;
}
private static String clientKeyType(byte clientCertificateType) {
// See also http://www.ietf.org/assignments/tls-parameters/tls-parameters.xml
switch (clientCertificateType) {
case CertificateRequestedCallback.TLS_CT_RSA_SIGN:
return OpenSslKeyMaterialManager.KEY_TYPE_RSA; // RFC rsa_sign
case CertificateRequestedCallback.TLS_CT_RSA_FIXED_DH:
return OpenSslKeyMaterialManager.KEY_TYPE_DH_RSA; // RFC rsa_fixed_dh
case CertificateRequestedCallback.TLS_CT_ECDSA_SIGN:
return OpenSslKeyMaterialManager.KEY_TYPE_EC; // RFC ecdsa_sign
case CertificateRequestedCallback.TLS_CT_RSA_FIXED_ECDH:
return OpenSslKeyMaterialManager.KEY_TYPE_EC_RSA; // RFC rsa_fixed_ecdh
case CertificateRequestedCallback.TLS_CT_ECDSA_FIXED_ECDH:
return OpenSslKeyMaterialManager.KEY_TYPE_EC_EC; // RFC ecdsa_fixed_ecdh
default:
return null;
}
}
}
}