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/*
* 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.hbase.ipc;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.util.concurrent.TimeUnit;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.client.MetricsConnection;
import org.apache.hadoop.hbase.codec.Codec;
import org.apache.hadoop.hbase.net.Address;
import org.apache.hadoop.hbase.security.SecurityInfo;
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.hbase.security.provider.SaslClientAuthenticationProvider;
import org.apache.hadoop.hbase.security.provider.SaslClientAuthenticationProviders;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.util.Pair;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.TokenIdentifier;
import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hbase.thirdparty.io.netty.util.HashedWheelTimer;
import org.apache.hbase.thirdparty.io.netty.util.Timeout;
import org.apache.hbase.thirdparty.io.netty.util.TimerTask;
import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ConnectionHeader;
import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.UserInformation;
/**
* Base class for ipc connection.
*/
@InterfaceAudience.Private
abstract class RpcConnection {
private static final Logger LOG = LoggerFactory.getLogger(RpcConnection.class);
protected final ConnectionId remoteId;
protected final boolean useSasl;
protected final Token token;
protected final SecurityInfo securityInfo;
protected final int reloginMaxBackoff; // max pause before relogin on sasl failure
protected final Codec codec;
protected final CompressionCodec compressor;
protected final MetricsConnection metrics;
protected final HashedWheelTimer timeoutTimer;
protected final Configuration conf;
protected static String CRYPTO_AES_ENABLED_KEY = "hbase.rpc.crypto.encryption.aes.enabled";
protected static boolean CRYPTO_AES_ENABLED_DEFAULT = false;
// the last time we were picked up from connection pool.
protected long lastTouched;
protected SaslClientAuthenticationProvider provider;
protected RpcConnection(Configuration conf, HashedWheelTimer timeoutTimer, ConnectionId remoteId,
String clusterId, boolean isSecurityEnabled, Codec codec, CompressionCodec compressor,
MetricsConnection metrics) throws IOException {
this.timeoutTimer = timeoutTimer;
this.codec = codec;
this.compressor = compressor;
this.conf = conf;
this.metrics = metrics;
User ticket = remoteId.getTicket();
this.securityInfo = SecurityInfo.getInfo(remoteId.getServiceName());
this.useSasl = isSecurityEnabled;
// Choose the correct Token and AuthenticationProvider for this client to use
SaslClientAuthenticationProviders providers =
SaslClientAuthenticationProviders.getInstance(conf);
Pair> pair;
if (useSasl && securityInfo != null) {
pair = providers.selectProvider(clusterId, ticket);
if (pair == null) {
if (LOG.isTraceEnabled()) {
LOG.trace("Found no valid authentication method from providers={} with tokens={}",
providers.toString(), ticket.getTokens());
}
throw new RuntimeException("Found no valid authentication method from options");
}
} else if (!useSasl) {
// Hack, while SIMPLE doesn't go via SASL.
pair = providers.getSimpleProvider();
} else {
throw new RuntimeException("Could not compute valid client authentication provider");
}
this.provider = pair.getFirst();
this.token = pair.getSecond();
LOG.debug("Using {} authentication for service={}, sasl={}",
provider.getSaslAuthMethod().getName(), remoteId.serviceName, useSasl);
reloginMaxBackoff = conf.getInt("hbase.security.relogin.maxbackoff", 5000);
this.remoteId = remoteId;
}
protected final void scheduleTimeoutTask(final Call call) {
if (call.timeout > 0) {
call.timeoutTask = timeoutTimer.newTimeout(new TimerTask() {
@Override
public void run(Timeout timeout) throws Exception {
call.setTimeout(new CallTimeoutException(call.toShortString() + ", waitTime="
+ (EnvironmentEdgeManager.currentTime() - call.getStartTime()) + "ms, rpcTimeout="
+ call.timeout + "ms"));
callTimeout(call);
}
}, call.timeout, TimeUnit.MILLISECONDS);
}
}
protected final byte[] getConnectionHeaderPreamble() {
// Assemble the preamble up in a buffer first and then send it. Writing individual elements,
// they are getting sent across piecemeal according to wireshark and then server is messing
// up the reading on occasion (the passed in stream is not buffered yet).
// Preamble is six bytes -- 'HBas' + VERSION + AUTH_CODE
int rpcHeaderLen = HConstants.RPC_HEADER.length;
byte[] preamble = new byte[rpcHeaderLen + 2];
System.arraycopy(HConstants.RPC_HEADER, 0, preamble, 0, rpcHeaderLen);
preamble[rpcHeaderLen] = HConstants.RPC_CURRENT_VERSION;
synchronized (this) {
preamble[rpcHeaderLen + 1] = provider.getSaslAuthMethod().getCode();
}
return preamble;
}
protected final ConnectionHeader getConnectionHeader() {
final ConnectionHeader.Builder builder = ConnectionHeader.newBuilder();
builder.setServiceName(remoteId.getServiceName());
final UserInformation userInfoPB = provider.getUserInfo(remoteId.ticket);
if (userInfoPB != null) {
builder.setUserInfo(userInfoPB);
}
if (this.codec != null) {
builder.setCellBlockCodecClass(this.codec.getClass().getCanonicalName());
}
if (this.compressor != null) {
builder.setCellBlockCompressorClass(this.compressor.getClass().getCanonicalName());
}
builder.setVersionInfo(ProtobufUtil.getVersionInfo());
boolean isCryptoAESEnable = conf.getBoolean(CRYPTO_AES_ENABLED_KEY, CRYPTO_AES_ENABLED_DEFAULT);
// if Crypto AES enable, setup Cipher transformation
if (isCryptoAESEnable) {
builder.setRpcCryptoCipherTransformation(
conf.get("hbase.rpc.crypto.encryption.aes.cipher.transform", "AES/CTR/NoPadding"));
}
return builder.build();
}
protected final InetSocketAddress getRemoteInetAddress(MetricsConnection metrics)
throws UnknownHostException {
if (metrics != null) {
metrics.incrNsLookups();
}
InetSocketAddress remoteAddr = Address.toSocketAddress(remoteId.getAddress());
if (remoteAddr.isUnresolved()) {
if (metrics != null) {
metrics.incrNsLookupsFailed();
}
throw new UnknownHostException(remoteId.getAddress() + " could not be resolved");
}
return remoteAddr;
}
protected abstract void callTimeout(Call call);
public ConnectionId remoteId() {
return remoteId;
}
public long getLastTouched() {
return lastTouched;
}
public void setLastTouched(long lastTouched) {
this.lastTouched = lastTouched;
}
/**
* Tell the idle connection sweeper whether we could be swept.
*/
public abstract boolean isActive();
/**
* Just close connection. Do not need to remove from connection pool.
*/
public abstract void shutdown();
public abstract void sendRequest(Call call, HBaseRpcController hrc) throws IOException;
/**
* Does the clean up work after the connection is removed from the connection pool
*/
public abstract void cleanupConnection();
}
