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Merged branch 'jetty-9.4.x' into 'jetty-10.0.x'.

This commit is contained in:
Simone Bordet 2019-10-21 21:37:30 +02:00
parent 1c5949f856 add8ffca5b
commit c2cde806d1
2 changed files with 209 additions and 23 deletions
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120
jetty-client/src/test/java/org/eclipse/jetty/client/HttpClientTLSTest.java
View File

@ -823,4 +823,124 @@ public class HttpClientTLSTest
Throwable cause = failure.getCause();
assertThat(cause, Matchers.instanceOf(SSLHandshakeException.class));
}
@Test
public void testTLSLargeFragments() throws Exception
{
CountDownLatch serverLatch = new CountDownLatch(1);
SslContextFactory.Server serverTLSFactory = createServerSslContextFactory();
QueuedThreadPool serverThreads = new QueuedThreadPool();
serverThreads.setName("server");
server = new Server(serverThreads);
HttpConfiguration httpConfig = new HttpConfiguration();
httpConfig.addCustomizer(new SecureRequestCustomizer());
HttpConnectionFactory http = new HttpConnectionFactory(httpConfig);
SslConnectionFactory ssl = new SslConnectionFactory(serverTLSFactory, http.getProtocol())
{
@Override
protected SslConnection newSslConnection(Connector connector, EndPoint endPoint, SSLEngine engine)
{
return new SslConnection(connector.getByteBufferPool(), connector.getExecutor(), endPoint, engine, isDirectBuffersForEncryption(), isDirectBuffersForDecryption())
{
@Override
protected SSLEngineResult unwrap(SSLEngine sslEngine, ByteBuffer input, ByteBuffer output) throws SSLException
{
int inputBytes = input.remaining();
SSLEngineResult result = super.unwrap(sslEngine, input, output);
if (inputBytes == 5)
serverLatch.countDown();
return result;
}
};
}
};
connector = new ServerConnector(server, 1, 1, ssl, http);
server.addConnector(connector);
server.setHandler(new EmptyServerHandler());
server.start();
long idleTimeout = 2000;
CountDownLatch clientLatch = new CountDownLatch(1);
SslContextFactory.Client clientTLSFactory = createClientSslContextFactory();
ClientConnector clientConnector = new ClientConnector();
clientConnector.setSelectors(1);
clientConnector.setSslContextFactory(clientTLSFactory);
QueuedThreadPool clientThreads = new QueuedThreadPool();
clientThreads.setName("client");
clientConnector.setExecutor(clientThreads);
client = new HttpClient(new HttpClientTransportOverHTTP(clientConnector))
{
@Override
protected ClientConnectionFactory newSslClientConnectionFactory(SslContextFactory.Client sslContextFactory, ClientConnectionFactory connectionFactory)
{
if (sslContextFactory == null)
sslContextFactory = getSslContextFactory();
return new SslClientConnectionFactory(sslContextFactory, getByteBufferPool(), getExecutor(), connectionFactory)
{
@Override
protected SslConnection newSslConnection(ByteBufferPool byteBufferPool, Executor executor, EndPoint endPoint, SSLEngine engine)
{
return new SslConnection(byteBufferPool, executor, endPoint, engine, isDirectBuffersForEncryption(), isDirectBuffersForDecryption())
{
@Override
protected SSLEngineResult wrap(SSLEngine sslEngine, ByteBuffer[] input, ByteBuffer output) throws SSLException
{
try
{
clientLatch.countDown();
assertTrue(serverLatch.await(5, TimeUnit.SECONDS));
return super.wrap(sslEngine, input, output);
}
catch (InterruptedException x)
{
throw new SSLException(x);
}
}
};
}
};
}
};
client.setIdleTimeout(idleTimeout);
client.setExecutor(clientThreads);
client.start();
String host = "localhost";
int port = connector.getLocalPort();
CountDownLatch responseLatch = new CountDownLatch(1);
client.newRequest(host, port)
.scheme(HttpScheme.HTTPS.asString())
.send(result ->
{
assertTrue(result.isSucceeded());
assertEquals(HttpStatus.OK_200, result.getResponse().getStatus());
responseLatch.countDown();
});
// Wait for the TLS buffers to be acquired by the client, then the
// HTTP request will be paused waiting for the TLS buffer to be expanded.
assertTrue(clientLatch.await(5, TimeUnit.SECONDS));
// Send the large frame bytes that will enlarge the TLS buffers.
try (Socket socket = new Socket(host, port))
{
OutputStream output = socket.getOutputStream();
byte[] largeFrameBytes = new byte[5];
largeFrameBytes[0] = 22; // Type = handshake
largeFrameBytes[1] = 3; // Major TLS version
largeFrameBytes[2] = 3; // Minor TLS version
// Frame length is 0x7FFF == 32767, i.e. a "large fragment".
// Maximum allowed by RFC 8446 is 16384, but SSLEngine supports up to 33093.
largeFrameBytes[3] = 0x7F; // Length hi byte
largeFrameBytes[4] = (byte)0xFF; // Length lo byte
output.write(largeFrameBytes);
output.flush();
// Just close the connection now, the large frame
// length was enough to trigger the buffer expansion.
}
// The HTTP request will resume and be forced to handle the TLS buffer expansion.
assertTrue(responseLatch.await(5, TimeUnit.SECONDS));
}
}

112
jetty-io/src/main/java/org/eclipse/jetty/io/ssl/SslConnection.java
View File

@ -25,12 +25,14 @@ import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executor;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.ToIntFunction;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLEngineResult;
import javax.net.ssl.SSLEngineResult.HandshakeStatus;
import javax.net.ssl.SSLEngineResult.Status;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLHandshakeException;
import javax.net.ssl.SSLSession;
import org.eclipse.jetty.io.AbstractConnection;
import org.eclipse.jetty.io.AbstractEndPoint;
@ -288,10 +290,37 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
return state == HandshakeState.SUCCEEDED || state == HandshakeState.FAILED;
}
private int getApplicationBufferSize()
{
return getBufferSize(SSLSession::getApplicationBufferSize);
}
private int getPacketBufferSize()
{
return getBufferSize(SSLSession::getPacketBufferSize);
}
private int getBufferSize(ToIntFunction<SSLSession> bufferSizeFn)
{
SSLSession hsSession = _sslEngine.getHandshakeSession();
SSLSession session = _sslEngine.getSession();
int size = bufferSizeFn.applyAsInt(session);
if (hsSession == null || hsSession == session)
return size;
int hsSize = bufferSizeFn.applyAsInt(hsSession);
return Math.max(hsSize, size);
}
private void acquireEncryptedInput()
{
if (_encryptedInput == null)
_encryptedInput = _bufferPool.acquire(_sslEngine.getSession().getPacketBufferSize(), _encryptedDirectBuffers);
_encryptedInput = _bufferPool.acquire(getPacketBufferSize(), _encryptedDirectBuffers);
}
private void acquireEncryptedOutput()
{
if (_encryptedOutput == null)
_encryptedOutput = _bufferPool.acquire(getPacketBufferSize(), _encryptedDirectBuffers);
}
@Override
@ -389,6 +418,24 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
connection instanceof AbstractConnection ? ((AbstractConnection)connection).toConnectionString() : connection);
}
private void releaseEncryptedInputBuffer()
{
if (_encryptedInput != null && !_encryptedInput.hasRemaining())
{
_bufferPool.release(_encryptedInput);
_encryptedInput = null;
}
}
protected void releaseDecryptedInputBuffer()
{
if (_decryptedInput != null && !_decryptedInput.hasRemaining())
{
_bufferPool.release(_decryptedInput);
_decryptedInput = null;
}
}
private void releaseEncryptedOutputBuffer()
{
if (!Thread.holdsLock(_decryptedEndPoint))
@ -524,9 +571,12 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
{
if (connection instanceof AbstractConnection)
{
AbstractConnection a = (AbstractConnection)connection;
if (a.getInputBufferSize() < _sslEngine.getSession().getApplicationBufferSize())
a.setInputBufferSize(_sslEngine.getSession().getApplicationBufferSize());
// This is an optimization to avoid that upper layer connections use small
// buffers and we need to copy decrypted data rather than decrypting in place.
AbstractConnection c = (AbstractConnection)connection;
int appBufferSize = getApplicationBufferSize();
if (c.getInputBufferSize() < appBufferSize)
c.setInputBufferSize(appBufferSize);
}
super.setConnection(connection);
}
@ -593,12 +643,13 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
// can we use the passed buffer if it is big enough
ByteBuffer appIn;
int appBufferSize = getApplicationBufferSize();
if (_decryptedInput == null)
{
if (BufferUtil.space(buffer) > _sslEngine.getSession().getApplicationBufferSize())
if (BufferUtil.space(buffer) > appBufferSize)
appIn = buffer;
else
appIn = _decryptedInput = _bufferPool.acquire(_sslEngine.getSession().getApplicationBufferSize(), _decryptedDirectBuffers);
appIn = _decryptedInput = _bufferPool.acquire(appBufferSize, _decryptedDirectBuffers);
}
else
{
@ -678,8 +729,21 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
}
return filled = netFilled;
case BUFFER_OVERFLOW:
// It's possible that SSLSession.applicationBufferSize has been expanded
// by the SSLEngine implementation. Unwrapping a large encrypted buffer
// causes BUFFER_OVERFLOW because the (old) applicationBufferSize is
// too small. Release the decrypted input buffer so it will be re-acquired
// with the larger capacity.
// See also system property "jsse.SSLEngine.acceptLargeFragments".
if (BufferUtil.isEmpty(_decryptedInput) && appBufferSize < getApplicationBufferSize())
{
releaseDecryptedInputBuffer();
continue;
}
throw new IllegalStateException("Unexpected unwrap result " + unwrap);
case OK:
{
if (unwrapResult.getHandshakeStatus() == HandshakeStatus.FINISHED)
handshakeSucceeded();
@ -697,7 +761,6 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
}
break;
}
default:
throw new IllegalStateException("Unexpected unwrap result " + unwrap);
@ -717,17 +780,8 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
}
finally
{
if (_encryptedInput != null && !_encryptedInput.hasRemaining())
{
_bufferPool.release(_encryptedInput);
_encryptedInput = null;
}
if (_decryptedInput != null && !_decryptedInput.hasRemaining())
{
_bufferPool.release(_decryptedInput);
_decryptedInput = null;
}
releaseEncryptedInputBuffer();
releaseDecryptedInputBuffer();
if (_flushState == FlushState.WAIT_FOR_FILL)
{
@ -954,8 +1008,8 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
throw new IllegalStateException("Unexpected HandshakeStatus " + status);
}
if (_encryptedOutput == null)
_encryptedOutput = _bufferPool.acquire(_sslEngine.getSession().getPacketBufferSize(), _encryptedDirectBuffers);
int packetBufferSize = getPacketBufferSize();
acquireEncryptedOutput();
if (_handshake.compareAndSet(HandshakeState.INITIAL, HandshakeState.HANDSHAKE))
{
@ -963,7 +1017,8 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
LOG.debug("flush starting handshake {}", SslConnection.this);
}
// We call sslEngine.wrap to try to take bytes from appOut buffers and encrypt them into the _netOut buffer
// We call sslEngine.wrap to try to take bytes from appOuts
// buffers and encrypt them into the _encryptedOutput buffer.
BufferUtil.compact(_encryptedOutput);
int pos = BufferUtil.flipToFill(_encryptedOutput);
SSLEngineResult wrapResult;
@ -1012,7 +1067,18 @@ public class SslConnection extends AbstractConnection implements Connection.Upgr
case BUFFER_OVERFLOW:
if (!flushed)
return result = false;
continue;
// It's possible that SSLSession.packetBufferSize has been expanded
// by the SSLEngine implementation. Wrapping a large application buffer
// causes BUFFER_OVERFLOW because the (old) packetBufferSize is
// too small. Release the encrypted output buffer so that it will
// be re-acquired with the larger capacity.
// See also system property "jsse.SSLEngine.acceptLargeFragments".
if (packetBufferSize < getPacketBufferSize())
{
releaseEncryptedOutputBuffer();
continue;
}
throw new IllegalStateException("Unexpected wrap result " + wrap);
case OK:
if (wrapResult.getHandshakeStatus() == HandshakeStatus.FINISHED)