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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
<span class="sourceLineNo">017</span> */<a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.ipc;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.HConstants.RPC_HEADER;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>import io.opentelemetry.api.GlobalOpenTelemetry;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import io.opentelemetry.api.trace.Span;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import io.opentelemetry.context.Context;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import io.opentelemetry.context.Scope;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import io.opentelemetry.context.propagation.TextMapGetter;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.io.Closeable;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.io.DataOutputStream;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import java.io.IOException;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import java.net.InetAddress;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import java.net.InetSocketAddress;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import java.nio.ByteBuffer;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import java.security.GeneralSecurityException;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import java.security.cert.X509Certificate;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import java.util.Collections;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import java.util.Map;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import java.util.Objects;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import java.util.Properties;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.apache.commons.crypto.cipher.CryptoCipherFactory;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.apache.commons.crypto.random.CryptoRandom;<a name="line.40"></a>
<span class="sourceLineNo">041</span>import org.apache.commons.crypto.random.CryptoRandomFactory;<a name="line.41"></a>
<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.42"></a>
<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.43"></a>
<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.ConnectionRegistryEndpoint;<a name="line.44"></a>
<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.VersionInfoUtil;<a name="line.45"></a>
<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.codec.Codec;<a name="line.46"></a>
<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.io.ByteBufferOutputStream;<a name="line.47"></a>
<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.io.crypto.aes.CryptoAES;<a name="line.48"></a>
<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.ipc.RpcServer.CallCleanup;<a name="line.49"></a>
<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a name="line.50"></a>
<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.regionserver.RegionServerAbortedException;<a name="line.51"></a>
<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.security.AccessDeniedException;<a name="line.52"></a>
<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.security.HBaseSaslRpcServer;<a name="line.53"></a>
<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.security.SaslStatus;<a name="line.54"></a>
<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.security.SaslUtil;<a name="line.55"></a>
<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.security.User;<a name="line.56"></a>
<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.security.provider.SaslServerAuthenticationProvider;<a name="line.57"></a>
<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.security.provider.SaslServerAuthenticationProviders;<a name="line.58"></a>
<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.security.provider.SimpleSaslServerAuthenticationProvider;<a name="line.59"></a>
<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.trace.TraceUtil;<a name="line.60"></a>
<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.61"></a>
<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.62"></a>
<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.63"></a>
<span class="sourceLineNo">064</span>import org.apache.hadoop.io.IntWritable;<a name="line.64"></a>
<span class="sourceLineNo">065</span>import org.apache.hadoop.io.Writable;<a name="line.65"></a>
<span class="sourceLineNo">066</span>import org.apache.hadoop.io.WritableUtils;<a name="line.66"></a>
<span class="sourceLineNo">067</span>import org.apache.hadoop.io.compress.CompressionCodec;<a name="line.67"></a>
<span class="sourceLineNo">068</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.68"></a>
<span class="sourceLineNo">069</span>import org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod;<a name="line.69"></a>
<span class="sourceLineNo">070</span>import org.apache.hadoop.security.authorize.AuthorizationException;<a name="line.70"></a>
<span class="sourceLineNo">071</span>import org.apache.hadoop.security.authorize.ProxyUsers;<a name="line.71"></a>
<span class="sourceLineNo">072</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.72"></a>
<span class="sourceLineNo">073</span><a name="line.73"></a>
<span class="sourceLineNo">074</span>import org.apache.hbase.thirdparty.com.google.common.collect.Maps;<a name="line.74"></a>
<span class="sourceLineNo">075</span>import org.apache.hbase.thirdparty.com.google.protobuf.BlockingService;<a name="line.75"></a>
<span class="sourceLineNo">076</span>import org.apache.hbase.thirdparty.com.google.protobuf.ByteInput;<a name="line.76"></a>
<span class="sourceLineNo">077</span>import org.apache.hbase.thirdparty.com.google.protobuf.ByteString;<a name="line.77"></a>
<span class="sourceLineNo">078</span>import org.apache.hbase.thirdparty.com.google.protobuf.CodedInputStream;<a name="line.78"></a>
<span class="sourceLineNo">079</span>import org.apache.hbase.thirdparty.com.google.protobuf.Descriptors.MethodDescriptor;<a name="line.79"></a>
<span class="sourceLineNo">080</span>import org.apache.hbase.thirdparty.com.google.protobuf.Message;<a name="line.80"></a>
<span class="sourceLineNo">081</span>import org.apache.hbase.thirdparty.com.google.protobuf.TextFormat;<a name="line.81"></a>
<span class="sourceLineNo">082</span>import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;<a name="line.82"></a>
<span class="sourceLineNo">083</span><a name="line.83"></a>
<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.84"></a>
<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a name="line.85"></a>
<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.VersionInfo;<a name="line.86"></a>
<span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos;<a name="line.87"></a>
<span class="sourceLineNo">088</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ConnectionHeader;<a name="line.88"></a>
<span class="sourceLineNo">089</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader;<a name="line.89"></a>
<span class="sourceLineNo">090</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ResponseHeader;<a name="line.90"></a>
<span class="sourceLineNo">091</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.UserInformation;<a name="line.91"></a>
<span class="sourceLineNo">092</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegistryProtos.GetConnectionRegistryResponse;<a name="line.92"></a>
<span class="sourceLineNo">093</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.TracingProtos.RPCTInfo;<a name="line.93"></a>
<span class="sourceLineNo">094</span><a name="line.94"></a>
<span class="sourceLineNo">095</span>/** Reads calls from a connection and queues them for handling. */<a name="line.95"></a>
<span class="sourceLineNo">096</span>@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "VO_VOLATILE_INCREMENT",<a name="line.96"></a>
<span class="sourceLineNo">097</span> justification = "False positive according to http://sourceforge.net/p/findbugs/bugs/1032/")<a name="line.97"></a>
<span class="sourceLineNo">098</span>@InterfaceAudience.Private<a name="line.98"></a>
<span class="sourceLineNo">099</span>abstract class ServerRpcConnection implements Closeable {<a name="line.99"></a>
<span class="sourceLineNo">100</span><a name="line.100"></a>
<span class="sourceLineNo">101</span> private static final TextMapGetter&lt;RPCTInfo&gt; getter = new RPCTInfoGetter();<a name="line.101"></a>
<span class="sourceLineNo">102</span><a name="line.102"></a>
<span class="sourceLineNo">103</span> protected final RpcServer rpcServer;<a name="line.103"></a>
<span class="sourceLineNo">104</span> // If the connection header has been read or not.<a name="line.104"></a>
<span class="sourceLineNo">105</span> protected boolean connectionHeaderRead = false;<a name="line.105"></a>
<span class="sourceLineNo">106</span><a name="line.106"></a>
<span class="sourceLineNo">107</span> protected CallCleanup callCleanup;<a name="line.107"></a>
<span class="sourceLineNo">108</span><a name="line.108"></a>
<span class="sourceLineNo">109</span> // Cache the remote host &amp; port info so that even if the socket is<a name="line.109"></a>
<span class="sourceLineNo">110</span> // disconnected, we can say where it used to connect to.<a name="line.110"></a>
<span class="sourceLineNo">111</span> protected String hostAddress;<a name="line.111"></a>
<span class="sourceLineNo">112</span> protected int remotePort;<a name="line.112"></a>
<span class="sourceLineNo">113</span> protected InetAddress addr;<a name="line.113"></a>
<span class="sourceLineNo">114</span> protected ConnectionHeader connectionHeader;<a name="line.114"></a>
<span class="sourceLineNo">115</span> protected Map&lt;String, byte[]&gt; connectionAttributes;<a name="line.115"></a>
<span class="sourceLineNo">116</span><a name="line.116"></a>
<span class="sourceLineNo">117</span> /**<a name="line.117"></a>
<span class="sourceLineNo">118</span> * Codec the client asked use.<a name="line.118"></a>
<span class="sourceLineNo">119</span> */<a name="line.119"></a>
<span class="sourceLineNo">120</span> protected Codec codec;<a name="line.120"></a>
<span class="sourceLineNo">121</span> /**<a name="line.121"></a>
<span class="sourceLineNo">122</span> * Compression codec the client asked us use.<a name="line.122"></a>
<span class="sourceLineNo">123</span> */<a name="line.123"></a>
<span class="sourceLineNo">124</span> protected CompressionCodec compressionCodec;<a name="line.124"></a>
<span class="sourceLineNo">125</span> protected BlockingService service;<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span> protected SaslServerAuthenticationProvider provider;<a name="line.127"></a>
<span class="sourceLineNo">128</span> protected boolean skipInitialSaslHandshake;<a name="line.128"></a>
<span class="sourceLineNo">129</span> protected boolean useSasl;<a name="line.129"></a>
<span class="sourceLineNo">130</span> protected HBaseSaslRpcServer saslServer;<a name="line.130"></a>
<span class="sourceLineNo">131</span><a name="line.131"></a>
<span class="sourceLineNo">132</span> // was authentication allowed with a fallback to simple auth<a name="line.132"></a>
<span class="sourceLineNo">133</span> protected boolean authenticatedWithFallback;<a name="line.133"></a>
<span class="sourceLineNo">134</span><a name="line.134"></a>
<span class="sourceLineNo">135</span> protected boolean retryImmediatelySupported = false;<a name="line.135"></a>
<span class="sourceLineNo">136</span><a name="line.136"></a>
<span class="sourceLineNo">137</span> protected User user = null;<a name="line.137"></a>
<span class="sourceLineNo">138</span> protected UserGroupInformation ugi = null;<a name="line.138"></a>
<span class="sourceLineNo">139</span> protected SaslServerAuthenticationProviders saslProviders = null;<a name="line.139"></a>
<span class="sourceLineNo">140</span> protected X509Certificate[] clientCertificateChain = null;<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span> public ServerRpcConnection(RpcServer rpcServer) {<a name="line.142"></a>
<span class="sourceLineNo">143</span> this.rpcServer = rpcServer;<a name="line.143"></a>
<span class="sourceLineNo">144</span> this.callCleanup = null;<a name="line.144"></a>
<span class="sourceLineNo">145</span> this.saslProviders = SaslServerAuthenticationProviders.getInstance(rpcServer.getConf());<a name="line.145"></a>
<span class="sourceLineNo">146</span> }<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span> @Override<a name="line.148"></a>
<span class="sourceLineNo">149</span> public String toString() {<a name="line.149"></a>
<span class="sourceLineNo">150</span> return getHostAddress() + ":" + remotePort;<a name="line.150"></a>
<span class="sourceLineNo">151</span> }<a name="line.151"></a>
<span class="sourceLineNo">152</span><a name="line.152"></a>
<span class="sourceLineNo">153</span> public String getHostAddress() {<a name="line.153"></a>
<span class="sourceLineNo">154</span> return hostAddress;<a name="line.154"></a>
<span class="sourceLineNo">155</span> }<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span> public InetAddress getHostInetAddress() {<a name="line.157"></a>
<span class="sourceLineNo">158</span> return addr;<a name="line.158"></a>
<span class="sourceLineNo">159</span> }<a name="line.159"></a>
<span class="sourceLineNo">160</span><a name="line.160"></a>
<span class="sourceLineNo">161</span> public int getRemotePort() {<a name="line.161"></a>
<span class="sourceLineNo">162</span> return remotePort;<a name="line.162"></a>
<span class="sourceLineNo">163</span> }<a name="line.163"></a>
<span class="sourceLineNo">164</span><a name="line.164"></a>
<span class="sourceLineNo">165</span> public VersionInfo getVersionInfo() {<a name="line.165"></a>
<span class="sourceLineNo">166</span> if (connectionHeader != null &amp;&amp; connectionHeader.hasVersionInfo()) {<a name="line.166"></a>
<span class="sourceLineNo">167</span> return connectionHeader.getVersionInfo();<a name="line.167"></a>
<span class="sourceLineNo">168</span> }<a name="line.168"></a>
<span class="sourceLineNo">169</span> return null;<a name="line.169"></a>
<span class="sourceLineNo">170</span> }<a name="line.170"></a>
<span class="sourceLineNo">171</span><a name="line.171"></a>
<span class="sourceLineNo">172</span> private String getFatalConnectionString(final int version, final byte authByte) {<a name="line.172"></a>
<span class="sourceLineNo">173</span> return "serverVersion=" + RpcServer.CURRENT_VERSION + ", clientVersion=" + version<a name="line.173"></a>
<span class="sourceLineNo">174</span> + ", authMethod=" + authByte +<a name="line.174"></a>
<span class="sourceLineNo">175</span> // The provider may be null if we failed to parse the header of the request<a name="line.175"></a>
<span class="sourceLineNo">176</span> ", authName=" + (provider == null ? "unknown" : provider.getSaslAuthMethod().getName())<a name="line.176"></a>
<span class="sourceLineNo">177</span> + " from " + toString();<a name="line.177"></a>
<span class="sourceLineNo">178</span> }<a name="line.178"></a>
<span class="sourceLineNo">179</span><a name="line.179"></a>
<span class="sourceLineNo">180</span> /**<a name="line.180"></a>
<span class="sourceLineNo">181</span> * Set up cell block codecs<a name="line.181"></a>
<span class="sourceLineNo">182</span> */<a name="line.182"></a>
<span class="sourceLineNo">183</span> private void setupCellBlockCodecs() throws FatalConnectionException {<a name="line.183"></a>
<span class="sourceLineNo">184</span> // TODO: Plug in other supported decoders.<a name="line.184"></a>
<span class="sourceLineNo">185</span> if (!connectionHeader.hasCellBlockCodecClass()) {<a name="line.185"></a>
<span class="sourceLineNo">186</span> return;<a name="line.186"></a>
<span class="sourceLineNo">187</span> }<a name="line.187"></a>
<span class="sourceLineNo">188</span> String className = connectionHeader.getCellBlockCodecClass();<a name="line.188"></a>
<span class="sourceLineNo">189</span> if (className == null || className.length() == 0) {<a name="line.189"></a>
<span class="sourceLineNo">190</span> return;<a name="line.190"></a>
<span class="sourceLineNo">191</span> }<a name="line.191"></a>
<span class="sourceLineNo">192</span> try {<a name="line.192"></a>
<span class="sourceLineNo">193</span> this.codec = (Codec) Class.forName(className).getDeclaredConstructor().newInstance();<a name="line.193"></a>
<span class="sourceLineNo">194</span> } catch (Exception e) {<a name="line.194"></a>
<span class="sourceLineNo">195</span> throw new UnsupportedCellCodecException(className, e);<a name="line.195"></a>
<span class="sourceLineNo">196</span> }<a name="line.196"></a>
<span class="sourceLineNo">197</span> if (!connectionHeader.hasCellBlockCompressorClass()) {<a name="line.197"></a>
<span class="sourceLineNo">198</span> return;<a name="line.198"></a>
<span class="sourceLineNo">199</span> }<a name="line.199"></a>
<span class="sourceLineNo">200</span> className = connectionHeader.getCellBlockCompressorClass();<a name="line.200"></a>
<span class="sourceLineNo">201</span> try {<a name="line.201"></a>
<span class="sourceLineNo">202</span> this.compressionCodec =<a name="line.202"></a>
<span class="sourceLineNo">203</span> (CompressionCodec) Class.forName(className).getDeclaredConstructor().newInstance();<a name="line.203"></a>
<span class="sourceLineNo">204</span> } catch (Exception e) {<a name="line.204"></a>
<span class="sourceLineNo">205</span> throw new UnsupportedCompressionCodecException(className, e);<a name="line.205"></a>
<span class="sourceLineNo">206</span> }<a name="line.206"></a>
<span class="sourceLineNo">207</span> }<a name="line.207"></a>
<span class="sourceLineNo">208</span><a name="line.208"></a>
<span class="sourceLineNo">209</span> /**<a name="line.209"></a>
<span class="sourceLineNo">210</span> * Set up cipher for rpc encryption with Apache Commons Crypto.<a name="line.210"></a>
<span class="sourceLineNo">211</span> */<a name="line.211"></a>
<span class="sourceLineNo">212</span> private Pair&lt;RPCProtos.ConnectionHeaderResponse, CryptoAES&gt; setupCryptoCipher()<a name="line.212"></a>
<span class="sourceLineNo">213</span> throws FatalConnectionException {<a name="line.213"></a>
<span class="sourceLineNo">214</span> // If simple auth, return<a name="line.214"></a>
<span class="sourceLineNo">215</span> if (saslServer == null) {<a name="line.215"></a>
<span class="sourceLineNo">216</span> return null;<a name="line.216"></a>
<span class="sourceLineNo">217</span> }<a name="line.217"></a>
<span class="sourceLineNo">218</span> // check if rpc encryption with Crypto AES<a name="line.218"></a>
<span class="sourceLineNo">219</span> String qop = saslServer.getNegotiatedQop();<a name="line.219"></a>
<span class="sourceLineNo">220</span> boolean isEncryption = SaslUtil.QualityOfProtection.PRIVACY.getSaslQop().equalsIgnoreCase(qop);<a name="line.220"></a>
<span class="sourceLineNo">221</span> boolean isCryptoAesEncryption = isEncryption<a name="line.221"></a>
<span class="sourceLineNo">222</span> &amp;&amp; this.rpcServer.conf.getBoolean("hbase.rpc.crypto.encryption.aes.enabled", false);<a name="line.222"></a>
<span class="sourceLineNo">223</span> if (!isCryptoAesEncryption) {<a name="line.223"></a>
<span class="sourceLineNo">224</span> return null;<a name="line.224"></a>
<span class="sourceLineNo">225</span> }<a name="line.225"></a>
<span class="sourceLineNo">226</span> if (!connectionHeader.hasRpcCryptoCipherTransformation()) {<a name="line.226"></a>
<span class="sourceLineNo">227</span> return null;<a name="line.227"></a>
<span class="sourceLineNo">228</span> }<a name="line.228"></a>
<span class="sourceLineNo">229</span> String transformation = connectionHeader.getRpcCryptoCipherTransformation();<a name="line.229"></a>
<span class="sourceLineNo">230</span> if (transformation == null || transformation.length() == 0) {<a name="line.230"></a>
<span class="sourceLineNo">231</span> return null;<a name="line.231"></a>
<span class="sourceLineNo">232</span> }<a name="line.232"></a>
<span class="sourceLineNo">233</span> // Negotiates AES based on complete saslServer.<a name="line.233"></a>
<span class="sourceLineNo">234</span> // The Crypto metadata need to be encrypted and send to client.<a name="line.234"></a>
<span class="sourceLineNo">235</span> Properties properties = new Properties();<a name="line.235"></a>
<span class="sourceLineNo">236</span> // the property for SecureRandomFactory<a name="line.236"></a>
<span class="sourceLineNo">237</span> properties.setProperty(CryptoRandomFactory.CLASSES_KEY,<a name="line.237"></a>
<span class="sourceLineNo">238</span> this.rpcServer.conf.get("hbase.crypto.sasl.encryption.aes.crypto.random",<a name="line.238"></a>
<span class="sourceLineNo">239</span> "org.apache.commons.crypto.random.JavaCryptoRandom"));<a name="line.239"></a>
<span class="sourceLineNo">240</span> // the property for cipher class<a name="line.240"></a>
<span class="sourceLineNo">241</span> properties.setProperty(CryptoCipherFactory.CLASSES_KEY,<a name="line.241"></a>
<span class="sourceLineNo">242</span> this.rpcServer.conf.get("hbase.rpc.crypto.encryption.aes.cipher.class",<a name="line.242"></a>
<span class="sourceLineNo">243</span> "org.apache.commons.crypto.cipher.JceCipher"));<a name="line.243"></a>
<span class="sourceLineNo">244</span><a name="line.244"></a>
<span class="sourceLineNo">245</span> int cipherKeyBits =<a name="line.245"></a>
<span class="sourceLineNo">246</span> this.rpcServer.conf.getInt("hbase.rpc.crypto.encryption.aes.cipher.keySizeBits", 128);<a name="line.246"></a>
<span class="sourceLineNo">247</span> // generate key and iv<a name="line.247"></a>
<span class="sourceLineNo">248</span> if (cipherKeyBits % 8 != 0) {<a name="line.248"></a>
<span class="sourceLineNo">249</span> throw new IllegalArgumentException(<a name="line.249"></a>
<span class="sourceLineNo">250</span> "The AES cipher key size in bits" + " should be a multiple of byte");<a name="line.250"></a>
<span class="sourceLineNo">251</span> }<a name="line.251"></a>
<span class="sourceLineNo">252</span> int len = cipherKeyBits / 8;<a name="line.252"></a>
<span class="sourceLineNo">253</span> byte[] inKey = new byte[len];<a name="line.253"></a>
<span class="sourceLineNo">254</span> byte[] outKey = new byte[len];<a name="line.254"></a>
<span class="sourceLineNo">255</span> byte[] inIv = new byte[len];<a name="line.255"></a>
<span class="sourceLineNo">256</span> byte[] outIv = new byte[len];<a name="line.256"></a>
<span class="sourceLineNo">257</span><a name="line.257"></a>
<span class="sourceLineNo">258</span> CryptoAES cryptoAES;<a name="line.258"></a>
<span class="sourceLineNo">259</span> try {<a name="line.259"></a>
<span class="sourceLineNo">260</span> // generate the cipher meta data with SecureRandom<a name="line.260"></a>
<span class="sourceLineNo">261</span> CryptoRandom secureRandom = CryptoRandomFactory.getCryptoRandom(properties);<a name="line.261"></a>
<span class="sourceLineNo">262</span> secureRandom.nextBytes(inKey);<a name="line.262"></a>
<span class="sourceLineNo">263</span> secureRandom.nextBytes(outKey);<a name="line.263"></a>
<span class="sourceLineNo">264</span> secureRandom.nextBytes(inIv);<a name="line.264"></a>
<span class="sourceLineNo">265</span> secureRandom.nextBytes(outIv);<a name="line.265"></a>
<span class="sourceLineNo">266</span><a name="line.266"></a>
<span class="sourceLineNo">267</span> // create CryptoAES for server<a name="line.267"></a>
<span class="sourceLineNo">268</span> cryptoAES = new CryptoAES(transformation, properties, inKey, outKey, inIv, outIv);<a name="line.268"></a>
<span class="sourceLineNo">269</span> } catch (GeneralSecurityException | IOException ex) {<a name="line.269"></a>
<span class="sourceLineNo">270</span> throw new UnsupportedCryptoException(ex.getMessage(), ex);<a name="line.270"></a>
<span class="sourceLineNo">271</span> }<a name="line.271"></a>
<span class="sourceLineNo">272</span> // create SaslCipherMeta and send to client,<a name="line.272"></a>
<span class="sourceLineNo">273</span> // for client, the [inKey, outKey], [inIv, outIv] should be reversed<a name="line.273"></a>
<span class="sourceLineNo">274</span> RPCProtos.CryptoCipherMeta.Builder ccmBuilder = RPCProtos.CryptoCipherMeta.newBuilder();<a name="line.274"></a>
<span class="sourceLineNo">275</span> ccmBuilder.setTransformation(transformation);<a name="line.275"></a>
<span class="sourceLineNo">276</span> ccmBuilder.setInIv(getByteString(outIv));<a name="line.276"></a>
<span class="sourceLineNo">277</span> ccmBuilder.setInKey(getByteString(outKey));<a name="line.277"></a>
<span class="sourceLineNo">278</span> ccmBuilder.setOutIv(getByteString(inIv));<a name="line.278"></a>
<span class="sourceLineNo">279</span> ccmBuilder.setOutKey(getByteString(inKey));<a name="line.279"></a>
<span class="sourceLineNo">280</span> RPCProtos.ConnectionHeaderResponse resp =<a name="line.280"></a>
<span class="sourceLineNo">281</span> RPCProtos.ConnectionHeaderResponse.newBuilder().setCryptoCipherMeta(ccmBuilder).build();<a name="line.281"></a>
<span class="sourceLineNo">282</span> return Pair.newPair(resp, cryptoAES);<a name="line.282"></a>
<span class="sourceLineNo">283</span> }<a name="line.283"></a>
<span class="sourceLineNo">284</span><a name="line.284"></a>
<span class="sourceLineNo">285</span> private ByteString getByteString(byte[] bytes) {<a name="line.285"></a>
<span class="sourceLineNo">286</span> // return singleton to reduce object allocation<a name="line.286"></a>
<span class="sourceLineNo">287</span> return (bytes.length == 0) ? ByteString.EMPTY : ByteString.copyFrom(bytes);<a name="line.287"></a>
<span class="sourceLineNo">288</span> }<a name="line.288"></a>
<span class="sourceLineNo">289</span><a name="line.289"></a>
<span class="sourceLineNo">290</span> private UserGroupInformation createUser(ConnectionHeader head) {<a name="line.290"></a>
<span class="sourceLineNo">291</span> UserGroupInformation ugi = null;<a name="line.291"></a>
<span class="sourceLineNo">292</span><a name="line.292"></a>
<span class="sourceLineNo">293</span> if (!head.hasUserInfo()) {<a name="line.293"></a>
<span class="sourceLineNo">294</span> return null;<a name="line.294"></a>
<span class="sourceLineNo">295</span> }<a name="line.295"></a>
<span class="sourceLineNo">296</span> UserInformation userInfoProto = head.getUserInfo();<a name="line.296"></a>
<span class="sourceLineNo">297</span> String effectiveUser = null;<a name="line.297"></a>
<span class="sourceLineNo">298</span> if (userInfoProto.hasEffectiveUser()) {<a name="line.298"></a>
<span class="sourceLineNo">299</span> effectiveUser = userInfoProto.getEffectiveUser();<a name="line.299"></a>
<span class="sourceLineNo">300</span> }<a name="line.300"></a>
<span class="sourceLineNo">301</span> String realUser = null;<a name="line.301"></a>
<span class="sourceLineNo">302</span> if (userInfoProto.hasRealUser()) {<a name="line.302"></a>
<span class="sourceLineNo">303</span> realUser = userInfoProto.getRealUser();<a name="line.303"></a>
<span class="sourceLineNo">304</span> }<a name="line.304"></a>
<span class="sourceLineNo">305</span> if (effectiveUser != null) {<a name="line.305"></a>
<span class="sourceLineNo">306</span> if (realUser != null) {<a name="line.306"></a>
<span class="sourceLineNo">307</span> UserGroupInformation realUserUgi = UserGroupInformation.createRemoteUser(realUser);<a name="line.307"></a>
<span class="sourceLineNo">308</span> ugi = UserGroupInformation.createProxyUser(effectiveUser, realUserUgi);<a name="line.308"></a>
<span class="sourceLineNo">309</span> } else {<a name="line.309"></a>
<span class="sourceLineNo">310</span> ugi = UserGroupInformation.createRemoteUser(effectiveUser);<a name="line.310"></a>
<span class="sourceLineNo">311</span> }<a name="line.311"></a>
<span class="sourceLineNo">312</span> }<a name="line.312"></a>
<span class="sourceLineNo">313</span> return ugi;<a name="line.313"></a>
<span class="sourceLineNo">314</span> }<a name="line.314"></a>
<span class="sourceLineNo">315</span><a name="line.315"></a>
<span class="sourceLineNo">316</span> protected final void disposeSasl() {<a name="line.316"></a>
<span class="sourceLineNo">317</span> if (saslServer != null) {<a name="line.317"></a>
<span class="sourceLineNo">318</span> saslServer.dispose();<a name="line.318"></a>
<span class="sourceLineNo">319</span> saslServer = null;<a name="line.319"></a>
<span class="sourceLineNo">320</span> }<a name="line.320"></a>
<span class="sourceLineNo">321</span> }<a name="line.321"></a>
<span class="sourceLineNo">322</span><a name="line.322"></a>
<span class="sourceLineNo">323</span> /**<a name="line.323"></a>
<span class="sourceLineNo">324</span> * No protobuf encoding of raw sasl messages<a name="line.324"></a>
<span class="sourceLineNo">325</span> */<a name="line.325"></a>
<span class="sourceLineNo">326</span> protected final void doRawSaslReply(SaslStatus status, Writable rv, String errorClass,<a name="line.326"></a>
<span class="sourceLineNo">327</span> String error) throws IOException {<a name="line.327"></a>
<span class="sourceLineNo">328</span> BufferChain bc;<a name="line.328"></a>
<span class="sourceLineNo">329</span> // In my testing, have noticed that sasl messages are usually<a name="line.329"></a>
<span class="sourceLineNo">330</span> // in the ballpark of 100-200. That's why the initial capacity is 256.<a name="line.330"></a>
<span class="sourceLineNo">331</span> try (ByteBufferOutputStream saslResponse = new ByteBufferOutputStream(256);<a name="line.331"></a>
<span class="sourceLineNo">332</span> DataOutputStream out = new DataOutputStream(saslResponse)) {<a name="line.332"></a>
<span class="sourceLineNo">333</span> out.writeInt(status.state); // write status<a name="line.333"></a>
<span class="sourceLineNo">334</span> if (status == SaslStatus.SUCCESS) {<a name="line.334"></a>
<span class="sourceLineNo">335</span> rv.write(out);<a name="line.335"></a>
<span class="sourceLineNo">336</span> } else {<a name="line.336"></a>
<span class="sourceLineNo">337</span> WritableUtils.writeString(out, errorClass);<a name="line.337"></a>
<span class="sourceLineNo">338</span> WritableUtils.writeString(out, error);<a name="line.338"></a>
<span class="sourceLineNo">339</span> }<a name="line.339"></a>
<span class="sourceLineNo">340</span> bc = new BufferChain(saslResponse.getByteBuffer());<a name="line.340"></a>
<span class="sourceLineNo">341</span> }<a name="line.341"></a>
<span class="sourceLineNo">342</span> doRespond(() -&gt; bc);<a name="line.342"></a>
<span class="sourceLineNo">343</span> }<a name="line.343"></a>
<span class="sourceLineNo">344</span><a name="line.344"></a>
<span class="sourceLineNo">345</span> HBaseSaslRpcServer getOrCreateSaslServer() throws IOException {<a name="line.345"></a>
<span class="sourceLineNo">346</span> if (saslServer == null) {<a name="line.346"></a>
<span class="sourceLineNo">347</span> saslServer = new HBaseSaslRpcServer(provider, rpcServer.saslProps, rpcServer.secretManager);<a name="line.347"></a>
<span class="sourceLineNo">348</span> }<a name="line.348"></a>
<span class="sourceLineNo">349</span> return saslServer;<a name="line.349"></a>
<span class="sourceLineNo">350</span> }<a name="line.350"></a>
<span class="sourceLineNo">351</span><a name="line.351"></a>
<span class="sourceLineNo">352</span> void finishSaslNegotiation() throws IOException {<a name="line.352"></a>
<span class="sourceLineNo">353</span> String qop = saslServer.getNegotiatedQop();<a name="line.353"></a>
<span class="sourceLineNo">354</span> ugi = provider.getAuthorizedUgi(saslServer.getAuthorizationID(), this.rpcServer.secretManager);<a name="line.354"></a>
<span class="sourceLineNo">355</span> RpcServer.LOG.debug(<a name="line.355"></a>
<span class="sourceLineNo">356</span> "SASL server context established. Authenticated client: {}. Negotiated QoP is {}", ugi, qop);<a name="line.356"></a>
<span class="sourceLineNo">357</span> rpcServer.metrics.authenticationSuccess();<a name="line.357"></a>
<span class="sourceLineNo">358</span> RpcServer.AUDITLOG.info(RpcServer.AUTH_SUCCESSFUL_FOR + ugi);<a name="line.358"></a>
<span class="sourceLineNo">359</span> }<a name="line.359"></a>
<span class="sourceLineNo">360</span><a name="line.360"></a>
<span class="sourceLineNo">361</span> public void processOneRpc(ByteBuff buf) throws IOException, InterruptedException {<a name="line.361"></a>
<span class="sourceLineNo">362</span> if (connectionHeaderRead) {<a name="line.362"></a>
<span class="sourceLineNo">363</span> processRequest(buf);<a name="line.363"></a>
<span class="sourceLineNo">364</span> } else {<a name="line.364"></a>
<span class="sourceLineNo">365</span> processConnectionHeader(buf);<a name="line.365"></a>
<span class="sourceLineNo">366</span> callCleanupIfNeeded();<a name="line.366"></a>
<span class="sourceLineNo">367</span> this.connectionHeaderRead = true;<a name="line.367"></a>
<span class="sourceLineNo">368</span> if (rpcServer.needAuthorization() &amp;&amp; !authorizeConnection()) {<a name="line.368"></a>
<span class="sourceLineNo">369</span> // Throw FatalConnectionException wrapping ACE so client does right thing and closes<a name="line.369"></a>
<span class="sourceLineNo">370</span> // down the connection instead of trying to read non-existent retun.<a name="line.370"></a>
<span class="sourceLineNo">371</span> throw new AccessDeniedException("Connection from " + this + " for service "<a name="line.371"></a>
<span class="sourceLineNo">372</span> + connectionHeader.getServiceName() + " is unauthorized for user: " + ugi);<a name="line.372"></a>
<span class="sourceLineNo">373</span> }<a name="line.373"></a>
<span class="sourceLineNo">374</span> this.user = this.rpcServer.userProvider.create(this.ugi);<a name="line.374"></a>
<span class="sourceLineNo">375</span> }<a name="line.375"></a>
<span class="sourceLineNo">376</span> }<a name="line.376"></a>
<span class="sourceLineNo">377</span><a name="line.377"></a>
<span class="sourceLineNo">378</span> private boolean authorizeConnection() throws IOException {<a name="line.378"></a>
<span class="sourceLineNo">379</span> try {<a name="line.379"></a>
<span class="sourceLineNo">380</span> // If auth method is DIGEST, the token was obtained by the<a name="line.380"></a>
<span class="sourceLineNo">381</span> // real user for the effective user, therefore not required to<a name="line.381"></a>
<span class="sourceLineNo">382</span> // authorize real user. doAs is allowed only for simple or kerberos<a name="line.382"></a>
<span class="sourceLineNo">383</span> // authentication<a name="line.383"></a>
<span class="sourceLineNo">384</span> if (ugi != null &amp;&amp; ugi.getRealUser() != null &amp;&amp; provider.supportsProtocolAuthentication()) {<a name="line.384"></a>
<span class="sourceLineNo">385</span> ProxyUsers.authorize(ugi, this.getHostAddress(), this.rpcServer.conf);<a name="line.385"></a>
<span class="sourceLineNo">386</span> }<a name="line.386"></a>
<span class="sourceLineNo">387</span> this.rpcServer.authorize(ugi, connectionHeader, getHostInetAddress());<a name="line.387"></a>
<span class="sourceLineNo">388</span> this.rpcServer.metrics.authorizationSuccess();<a name="line.388"></a>
<span class="sourceLineNo">389</span> } catch (AuthorizationException ae) {<a name="line.389"></a>
<span class="sourceLineNo">390</span> if (RpcServer.LOG.isDebugEnabled()) {<a name="line.390"></a>
<span class="sourceLineNo">391</span> RpcServer.LOG.debug("Connection authorization failed: " + ae.getMessage(), ae);<a name="line.391"></a>
<span class="sourceLineNo">392</span> }<a name="line.392"></a>
<span class="sourceLineNo">393</span> this.rpcServer.metrics.authorizationFailure();<a name="line.393"></a>
<span class="sourceLineNo">394</span> doRespond(getErrorResponse(ae.getMessage(), new AccessDeniedException(ae)));<a name="line.394"></a>
<span class="sourceLineNo">395</span> return false;<a name="line.395"></a>
<span class="sourceLineNo">396</span> }<a name="line.396"></a>
<span class="sourceLineNo">397</span> return true;<a name="line.397"></a>
<span class="sourceLineNo">398</span> }<a name="line.398"></a>
<span class="sourceLineNo">399</span><a name="line.399"></a>
<span class="sourceLineNo">400</span> private CodedInputStream createCis(ByteBuff buf) {<a name="line.400"></a>
<span class="sourceLineNo">401</span> // Here we read in the header. We avoid having pb<a name="line.401"></a>
<span class="sourceLineNo">402</span> // do its default 4k allocation for CodedInputStream. We force it to use<a name="line.402"></a>
<span class="sourceLineNo">403</span> // backing array.<a name="line.403"></a>
<span class="sourceLineNo">404</span> CodedInputStream cis;<a name="line.404"></a>
<span class="sourceLineNo">405</span> if (buf.hasArray()) {<a name="line.405"></a>
<span class="sourceLineNo">406</span> cis = UnsafeByteOperations<a name="line.406"></a>
<span class="sourceLineNo">407</span> .unsafeWrap(buf.array(), buf.arrayOffset() + buf.position(), buf.limit()).newCodedInput();<a name="line.407"></a>
<span class="sourceLineNo">408</span> } else {<a name="line.408"></a>
<span class="sourceLineNo">409</span> cis = UnsafeByteOperations.unsafeWrap(new ByteBuffByteInput(buf, buf.limit()), 0, buf.limit())<a name="line.409"></a>
<span class="sourceLineNo">410</span> .newCodedInput();<a name="line.410"></a>
<span class="sourceLineNo">411</span> }<a name="line.411"></a>
<span class="sourceLineNo">412</span> cis.enableAliasing(true);<a name="line.412"></a>
<span class="sourceLineNo">413</span> return cis;<a name="line.413"></a>
<span class="sourceLineNo">414</span> }<a name="line.414"></a>
<span class="sourceLineNo">415</span><a name="line.415"></a>
<span class="sourceLineNo">416</span> // Reads the connection header following version<a name="line.416"></a>
<span class="sourceLineNo">417</span> private void processConnectionHeader(ByteBuff buf) throws IOException {<a name="line.417"></a>
<span class="sourceLineNo">418</span> this.connectionHeader = ConnectionHeader.parseFrom(createCis(buf));<a name="line.418"></a>
<span class="sourceLineNo">419</span><a name="line.419"></a>
<span class="sourceLineNo">420</span> // we want to copy the attributes prior to releasing the buffer so that they don't get corrupted<a name="line.420"></a>
<span class="sourceLineNo">421</span> // eventually<a name="line.421"></a>
<span class="sourceLineNo">422</span> if (connectionHeader.getAttributeList().isEmpty()) {<a name="line.422"></a>
<span class="sourceLineNo">423</span> this.connectionAttributes = Collections.emptyMap();<a name="line.423"></a>
<span class="sourceLineNo">424</span> } else {<a name="line.424"></a>
<span class="sourceLineNo">425</span> this.connectionAttributes =<a name="line.425"></a>
<span class="sourceLineNo">426</span> Maps.newHashMapWithExpectedSize(connectionHeader.getAttributeList().size());<a name="line.426"></a>
<span class="sourceLineNo">427</span> for (HBaseProtos.NameBytesPair nameBytesPair : connectionHeader.getAttributeList()) {<a name="line.427"></a>
<span class="sourceLineNo">428</span> this.connectionAttributes.put(nameBytesPair.getName(),<a name="line.428"></a>
<span class="sourceLineNo">429</span> nameBytesPair.getValue().toByteArray());<a name="line.429"></a>
<span class="sourceLineNo">430</span> }<a name="line.430"></a>
<span class="sourceLineNo">431</span> }<a name="line.431"></a>
<span class="sourceLineNo">432</span> String serviceName = connectionHeader.getServiceName();<a name="line.432"></a>
<span class="sourceLineNo">433</span> if (serviceName == null) {<a name="line.433"></a>
<span class="sourceLineNo">434</span> throw new EmptyServiceNameException();<a name="line.434"></a>
<span class="sourceLineNo">435</span> }<a name="line.435"></a>
<span class="sourceLineNo">436</span> this.service = RpcServer.getService(this.rpcServer.services, serviceName);<a name="line.436"></a>
<span class="sourceLineNo">437</span> if (this.service == null) {<a name="line.437"></a>
<span class="sourceLineNo">438</span> throw new UnknownServiceException(serviceName);<a name="line.438"></a>
<span class="sourceLineNo">439</span> }<a name="line.439"></a>
<span class="sourceLineNo">440</span> setupCellBlockCodecs();<a name="line.440"></a>
<span class="sourceLineNo">441</span> sendConnectionHeaderResponseIfNeeded();<a name="line.441"></a>
<span class="sourceLineNo">442</span> UserGroupInformation protocolUser = createUser(connectionHeader);<a name="line.442"></a>
<span class="sourceLineNo">443</span> if (!useSasl) {<a name="line.443"></a>
<span class="sourceLineNo">444</span> ugi = protocolUser;<a name="line.444"></a>
<span class="sourceLineNo">445</span> if (ugi != null) {<a name="line.445"></a>
<span class="sourceLineNo">446</span> ugi.setAuthenticationMethod(AuthenticationMethod.SIMPLE);<a name="line.446"></a>
<span class="sourceLineNo">447</span> }<a name="line.447"></a>
<span class="sourceLineNo">448</span> // audit logging for SASL authenticated users happens in saslReadAndProcess()<a name="line.448"></a>
<span class="sourceLineNo">449</span> if (authenticatedWithFallback) {<a name="line.449"></a>
<span class="sourceLineNo">450</span> RpcServer.LOG.warn("Allowed fallback to SIMPLE auth for {} connecting from {}", ugi,<a name="line.450"></a>
<span class="sourceLineNo">451</span> getHostAddress());<a name="line.451"></a>
<span class="sourceLineNo">452</span> }<a name="line.452"></a>
<span class="sourceLineNo">453</span> } else {<a name="line.453"></a>
<span class="sourceLineNo">454</span> // user is authenticated<a name="line.454"></a>
<span class="sourceLineNo">455</span> ugi.setAuthenticationMethod(provider.getSaslAuthMethod().getAuthMethod());<a name="line.455"></a>
<span class="sourceLineNo">456</span> // Now we check if this is a proxy user case. If the protocol user is<a name="line.456"></a>
<span class="sourceLineNo">457</span> // different from the 'user', it is a proxy user scenario. However,<a name="line.457"></a>
<span class="sourceLineNo">458</span> // this is not allowed if user authenticated with DIGEST.<a name="line.458"></a>
<span class="sourceLineNo">459</span> if ((protocolUser != null) &amp;&amp; (!protocolUser.getUserName().equals(ugi.getUserName()))) {<a name="line.459"></a>
<span class="sourceLineNo">460</span> if (!provider.supportsProtocolAuthentication()) {<a name="line.460"></a>
<span class="sourceLineNo">461</span> // Not allowed to doAs if token authentication is used<a name="line.461"></a>
<span class="sourceLineNo">462</span> throw new AccessDeniedException("Authenticated user (" + ugi<a name="line.462"></a>
<span class="sourceLineNo">463</span> + ") doesn't match what the client claims to be (" + protocolUser + ")");<a name="line.463"></a>
<span class="sourceLineNo">464</span> } else {<a name="line.464"></a>
<span class="sourceLineNo">465</span> // Effective user can be different from authenticated user<a name="line.465"></a>
<span class="sourceLineNo">466</span> // for simple auth or kerberos auth<a name="line.466"></a>
<span class="sourceLineNo">467</span> // The user is the real user. Now we create a proxy user<a name="line.467"></a>
<span class="sourceLineNo">468</span> UserGroupInformation realUser = ugi;<a name="line.468"></a>
<span class="sourceLineNo">469</span> ugi = UserGroupInformation.createProxyUser(protocolUser.getUserName(), realUser);<a name="line.469"></a>
<span class="sourceLineNo">470</span> // Now the user is a proxy user, set Authentication method Proxy.<a name="line.470"></a>
<span class="sourceLineNo">471</span> ugi.setAuthenticationMethod(AuthenticationMethod.PROXY);<a name="line.471"></a>
<span class="sourceLineNo">472</span> }<a name="line.472"></a>
<span class="sourceLineNo">473</span> }<a name="line.473"></a>
<span class="sourceLineNo">474</span> }<a name="line.474"></a>
<span class="sourceLineNo">475</span> String version;<a name="line.475"></a>
<span class="sourceLineNo">476</span> if (this.connectionHeader.hasVersionInfo()) {<a name="line.476"></a>
<span class="sourceLineNo">477</span> // see if this connection will support RetryImmediatelyException<a name="line.477"></a>
<span class="sourceLineNo">478</span> this.retryImmediatelySupported = VersionInfoUtil.hasMinimumVersion(getVersionInfo(), 1, 2);<a name="line.478"></a>
<span class="sourceLineNo">479</span> version = this.connectionHeader.getVersionInfo().getVersion();<a name="line.479"></a>
<span class="sourceLineNo">480</span> } else {<a name="line.480"></a>
<span class="sourceLineNo">481</span> version = "UNKNOWN";<a name="line.481"></a>
<span class="sourceLineNo">482</span> }<a name="line.482"></a>
<span class="sourceLineNo">483</span> RpcServer.AUDITLOG.info("Connection from {}:{}, version={}, sasl={}, ugi={}, service={}",<a name="line.483"></a>
<span class="sourceLineNo">484</span> this.hostAddress, this.remotePort, version, this.useSasl, this.ugi, serviceName);<a name="line.484"></a>
<span class="sourceLineNo">485</span> }<a name="line.485"></a>
<span class="sourceLineNo">486</span><a name="line.486"></a>
<span class="sourceLineNo">487</span> /**<a name="line.487"></a>
<span class="sourceLineNo">488</span> * Send the response for connection header<a name="line.488"></a>
<span class="sourceLineNo">489</span> */<a name="line.489"></a>
<span class="sourceLineNo">490</span> private void sendConnectionHeaderResponseIfNeeded() throws FatalConnectionException {<a name="line.490"></a>
<span class="sourceLineNo">491</span> Pair&lt;RPCProtos.ConnectionHeaderResponse, CryptoAES&gt; pair = setupCryptoCipher();<a name="line.491"></a>
<span class="sourceLineNo">492</span> // Response the connection header if Crypto AES is enabled<a name="line.492"></a>
<span class="sourceLineNo">493</span> if (pair == null) {<a name="line.493"></a>
<span class="sourceLineNo">494</span> return;<a name="line.494"></a>
<span class="sourceLineNo">495</span> }<a name="line.495"></a>
<span class="sourceLineNo">496</span> try {<a name="line.496"></a>
<span class="sourceLineNo">497</span> int size = pair.getFirst().getSerializedSize();<a name="line.497"></a>
<span class="sourceLineNo">498</span> BufferChain bc;<a name="line.498"></a>
<span class="sourceLineNo">499</span> try (ByteBufferOutputStream bbOut = new ByteBufferOutputStream(4 + size);<a name="line.499"></a>
<span class="sourceLineNo">500</span> DataOutputStream out = new DataOutputStream(bbOut)) {<a name="line.500"></a>
<span class="sourceLineNo">501</span> out.writeInt(size);<a name="line.501"></a>
<span class="sourceLineNo">502</span> pair.getFirst().writeTo(out);<a name="line.502"></a>
<span class="sourceLineNo">503</span> bc = new BufferChain(bbOut.getByteBuffer());<a name="line.503"></a>
<span class="sourceLineNo">504</span> }<a name="line.504"></a>
<span class="sourceLineNo">505</span> doRespond(new RpcResponse() {<a name="line.505"></a>
<span class="sourceLineNo">506</span><a name="line.506"></a>
<span class="sourceLineNo">507</span> @Override<a name="line.507"></a>
<span class="sourceLineNo">508</span> public BufferChain getResponse() {<a name="line.508"></a>
<span class="sourceLineNo">509</span> return bc;<a name="line.509"></a>
<span class="sourceLineNo">510</span> }<a name="line.510"></a>
<span class="sourceLineNo">511</span><a name="line.511"></a>
<span class="sourceLineNo">512</span> @Override<a name="line.512"></a>
<span class="sourceLineNo">513</span> public void done() {<a name="line.513"></a>
<span class="sourceLineNo">514</span> // must switch after sending the connection header response, as the client still uses the<a name="line.514"></a>
<span class="sourceLineNo">515</span> // original SaslClient to unwrap the data we send back<a name="line.515"></a>
<span class="sourceLineNo">516</span> saslServer.switchToCryptoAES(pair.getSecond());<a name="line.516"></a>
<span class="sourceLineNo">517</span> }<a name="line.517"></a>
<span class="sourceLineNo">518</span> });<a name="line.518"></a>
<span class="sourceLineNo">519</span> } catch (IOException ex) {<a name="line.519"></a>
<span class="sourceLineNo">520</span> throw new UnsupportedCryptoException(ex.getMessage(), ex);<a name="line.520"></a>
<span class="sourceLineNo">521</span> }<a name="line.521"></a>
<span class="sourceLineNo">522</span> }<a name="line.522"></a>
<span class="sourceLineNo">523</span><a name="line.523"></a>
<span class="sourceLineNo">524</span> protected abstract void doRespond(RpcResponse resp) throws IOException;<a name="line.524"></a>
<span class="sourceLineNo">525</span><a name="line.525"></a>
<span class="sourceLineNo">526</span> /**<a name="line.526"></a>
<span class="sourceLineNo">527</span> * Has the request header and the request param and optionally encoded data buffer all in this one<a name="line.527"></a>
<span class="sourceLineNo">528</span> * array.<a name="line.528"></a>
<span class="sourceLineNo">529</span> * &lt;p/&gt;<a name="line.529"></a>
<span class="sourceLineNo">530</span> * Will be overridden in tests.<a name="line.530"></a>
<span class="sourceLineNo">531</span> */<a name="line.531"></a>
<span class="sourceLineNo">532</span> protected void processRequest(ByteBuff buf) throws IOException, InterruptedException {<a name="line.532"></a>
<span class="sourceLineNo">533</span> long totalRequestSize = buf.limit();<a name="line.533"></a>
<span class="sourceLineNo">534</span> int offset = 0;<a name="line.534"></a>
<span class="sourceLineNo">535</span> // Here we read in the header. We avoid having pb<a name="line.535"></a>
<span class="sourceLineNo">536</span> // do its default 4k allocation for CodedInputStream. We force it to use<a name="line.536"></a>
<span class="sourceLineNo">537</span> // backing array.<a name="line.537"></a>
<span class="sourceLineNo">538</span> CodedInputStream cis = createCis(buf);<a name="line.538"></a>
<span class="sourceLineNo">539</span> int headerSize = cis.readRawVarint32();<a name="line.539"></a>
<span class="sourceLineNo">540</span> offset = cis.getTotalBytesRead();<a name="line.540"></a>
<span class="sourceLineNo">541</span> Message.Builder builder = RequestHeader.newBuilder();<a name="line.541"></a>
<span class="sourceLineNo">542</span> ProtobufUtil.mergeFrom(builder, cis, headerSize);<a name="line.542"></a>
<span class="sourceLineNo">543</span> RequestHeader header = (RequestHeader) builder.build();<a name="line.543"></a>
<span class="sourceLineNo">544</span> offset += headerSize;<a name="line.544"></a>
<span class="sourceLineNo">545</span> Context traceCtx = GlobalOpenTelemetry.getPropagators().getTextMapPropagator()<a name="line.545"></a>
<span class="sourceLineNo">546</span> .extract(Context.current(), header.getTraceInfo(), getter);<a name="line.546"></a>
<span class="sourceLineNo">547</span><a name="line.547"></a>
<span class="sourceLineNo">548</span> // n.b. Management of this Span instance is a little odd. Most exit paths from this try scope<a name="line.548"></a>
<span class="sourceLineNo">549</span> // are early-exits due to error cases. There's only one success path, the asynchronous call to<a name="line.549"></a>
<span class="sourceLineNo">550</span> // RpcScheduler#dispatch. The success path assumes ownership of the span, which is represented<a name="line.550"></a>
<span class="sourceLineNo">551</span> // by null-ing out the reference in this scope. All other paths end the span. Thus, and in<a name="line.551"></a>
<span class="sourceLineNo">552</span> // order to avoid accidentally orphaning the span, the call to Span#end happens in a finally<a name="line.552"></a>
<span class="sourceLineNo">553</span> // block iff the span is non-null.<a name="line.553"></a>
<span class="sourceLineNo">554</span> Span span = TraceUtil.createRemoteSpan("RpcServer.process", traceCtx);<a name="line.554"></a>
<span class="sourceLineNo">555</span> try (Scope ignored = span.makeCurrent()) {<a name="line.555"></a>
<span class="sourceLineNo">556</span> int id = header.getCallId();<a name="line.556"></a>
<span class="sourceLineNo">557</span> // HBASE-28128 - if server is aborting, don't bother trying to process. It will<a name="line.557"></a>
<span class="sourceLineNo">558</span> // fail at the handler layer, but worse might result in CallQueueTooBigException if the<a name="line.558"></a>
<span class="sourceLineNo">559</span> // queue is full but server is not properly processing requests. Better to throw an aborted<a name="line.559"></a>
<span class="sourceLineNo">560</span> // exception here so that the client can properly react.<a name="line.560"></a>
<span class="sourceLineNo">561</span> if (rpcServer.server != null &amp;&amp; rpcServer.server.isAborted()) {<a name="line.561"></a>
<span class="sourceLineNo">562</span> RegionServerAbortedException serverIsAborted = new RegionServerAbortedException(<a name="line.562"></a>
<span class="sourceLineNo">563</span> "Server " + rpcServer.server.getServerName() + " aborting");<a name="line.563"></a>
<span class="sourceLineNo">564</span> this.rpcServer.metrics.exception(serverIsAborted);<a name="line.564"></a>
<span class="sourceLineNo">565</span> sendErrorResponseForCall(id, totalRequestSize, span, serverIsAborted.getMessage(),<a name="line.565"></a>
<span class="sourceLineNo">566</span> serverIsAborted);<a name="line.566"></a>
<span class="sourceLineNo">567</span> return;<a name="line.567"></a>
<span class="sourceLineNo">568</span> }<a name="line.568"></a>
<span class="sourceLineNo">569</span><a name="line.569"></a>
<span class="sourceLineNo">570</span> if (RpcServer.LOG.isTraceEnabled()) {<a name="line.570"></a>
<span class="sourceLineNo">571</span> RpcServer.LOG.trace("RequestHeader " + TextFormat.shortDebugString(header)<a name="line.571"></a>
<span class="sourceLineNo">572</span> + " totalRequestSize: " + totalRequestSize + " bytes");<a name="line.572"></a>
<span class="sourceLineNo">573</span> }<a name="line.573"></a>
<span class="sourceLineNo">574</span> // Enforcing the call queue size, this triggers a retry in the client<a name="line.574"></a>
<span class="sourceLineNo">575</span> // This is a bit late to be doing this check - we have already read in the<a name="line.575"></a>
<span class="sourceLineNo">576</span> // total request.<a name="line.576"></a>
<span class="sourceLineNo">577</span> if (<a name="line.577"></a>
<span class="sourceLineNo">578</span> (totalRequestSize + this.rpcServer.callQueueSizeInBytes.sum())<a name="line.578"></a>
<span class="sourceLineNo">579</span> &gt; this.rpcServer.maxQueueSizeInBytes<a name="line.579"></a>
<span class="sourceLineNo">580</span> ) {<a name="line.580"></a>
<span class="sourceLineNo">581</span> this.rpcServer.metrics.exception(RpcServer.CALL_QUEUE_TOO_BIG_EXCEPTION);<a name="line.581"></a>
<span class="sourceLineNo">582</span> sendErrorResponseForCall(id, totalRequestSize, span,<a name="line.582"></a>
<span class="sourceLineNo">583</span> "Call queue is full on " + this.rpcServer.server.getServerName()<a name="line.583"></a>
<span class="sourceLineNo">584</span> + ", is hbase.ipc.server.max.callqueue.size too small?",<a name="line.584"></a>
<span class="sourceLineNo">585</span> RpcServer.CALL_QUEUE_TOO_BIG_EXCEPTION);<a name="line.585"></a>
<span class="sourceLineNo">586</span> return;<a name="line.586"></a>
<span class="sourceLineNo">587</span> }<a name="line.587"></a>
<span class="sourceLineNo">588</span> MethodDescriptor md = null;<a name="line.588"></a>
<span class="sourceLineNo">589</span> Message param = null;<a name="line.589"></a>
<span class="sourceLineNo">590</span> CellScanner cellScanner = null;<a name="line.590"></a>
<span class="sourceLineNo">591</span> try {<a name="line.591"></a>
<span class="sourceLineNo">592</span> if (header.hasRequestParam() &amp;&amp; header.getRequestParam()) {<a name="line.592"></a>
<span class="sourceLineNo">593</span> md = this.service.getDescriptorForType().findMethodByName(header.getMethodName());<a name="line.593"></a>
<span class="sourceLineNo">594</span> if (md == null) {<a name="line.594"></a>
<span class="sourceLineNo">595</span> throw new UnsupportedOperationException(header.getMethodName());<a name="line.595"></a>
<span class="sourceLineNo">596</span> }<a name="line.596"></a>
<span class="sourceLineNo">597</span> builder = this.service.getRequestPrototype(md).newBuilderForType();<a name="line.597"></a>
<span class="sourceLineNo">598</span> cis.resetSizeCounter();<a name="line.598"></a>
<span class="sourceLineNo">599</span> int paramSize = cis.readRawVarint32();<a name="line.599"></a>
<span class="sourceLineNo">600</span> offset += cis.getTotalBytesRead();<a name="line.600"></a>
<span class="sourceLineNo">601</span> if (builder != null) {<a name="line.601"></a>
<span class="sourceLineNo">602</span> ProtobufUtil.mergeFrom(builder, cis, paramSize);<a name="line.602"></a>
<span class="sourceLineNo">603</span> param = builder.build();<a name="line.603"></a>
<span class="sourceLineNo">604</span> }<a name="line.604"></a>
<span class="sourceLineNo">605</span> offset += paramSize;<a name="line.605"></a>
<span class="sourceLineNo">606</span> } else {<a name="line.606"></a>
<span class="sourceLineNo">607</span> // currently header must have request param, so we directly throw<a name="line.607"></a>
<span class="sourceLineNo">608</span> // exception here<a name="line.608"></a>
<span class="sourceLineNo">609</span> String msg = "Invalid request header: " + TextFormat.shortDebugString(header)<a name="line.609"></a>
<span class="sourceLineNo">610</span> + ", should have param set in it";<a name="line.610"></a>
<span class="sourceLineNo">611</span> RpcServer.LOG.warn(msg);<a name="line.611"></a>
<span class="sourceLineNo">612</span> throw new DoNotRetryIOException(msg);<a name="line.612"></a>
<span class="sourceLineNo">613</span> }<a name="line.613"></a>
<span class="sourceLineNo">614</span> if (header.hasCellBlockMeta()) {<a name="line.614"></a>
<span class="sourceLineNo">615</span> buf.position(offset);<a name="line.615"></a>
<span class="sourceLineNo">616</span> ByteBuff dup = buf.duplicate();<a name="line.616"></a>
<span class="sourceLineNo">617</span> dup.limit(offset + header.getCellBlockMeta().getLength());<a name="line.617"></a>
<span class="sourceLineNo">618</span> cellScanner = this.rpcServer.cellBlockBuilder.createCellScannerReusingBuffers(this.codec,<a name="line.618"></a>
<span class="sourceLineNo">619</span> this.compressionCodec, dup);<a name="line.619"></a>
<span class="sourceLineNo">620</span> }<a name="line.620"></a>
<span class="sourceLineNo">621</span> } catch (Throwable thrown) {<a name="line.621"></a>
<span class="sourceLineNo">622</span> InetSocketAddress address = this.rpcServer.getListenerAddress();<a name="line.622"></a>
<span class="sourceLineNo">623</span> String msg = (address != null ? address : "(channel closed)")<a name="line.623"></a>
<span class="sourceLineNo">624</span> + " is unable to read call parameter from client " + getHostAddress();<a name="line.624"></a>
<span class="sourceLineNo">625</span> RpcServer.LOG.warn(msg, thrown);<a name="line.625"></a>
<span class="sourceLineNo">626</span><a name="line.626"></a>
<span class="sourceLineNo">627</span> this.rpcServer.metrics.exception(thrown);<a name="line.627"></a>
<span class="sourceLineNo">628</span><a name="line.628"></a>
<span class="sourceLineNo">629</span> final Throwable responseThrowable;<a name="line.629"></a>
<span class="sourceLineNo">630</span> if (thrown instanceof LinkageError) {<a name="line.630"></a>
<span class="sourceLineNo">631</span> // probably the hbase hadoop version does not match the running hadoop version<a name="line.631"></a>
<span class="sourceLineNo">632</span> responseThrowable = new DoNotRetryIOException(thrown);<a name="line.632"></a>
<span class="sourceLineNo">633</span> } else if (thrown instanceof UnsupportedOperationException) {<a name="line.633"></a>
<span class="sourceLineNo">634</span> // If the method is not present on the server, do not retry.<a name="line.634"></a>
<span class="sourceLineNo">635</span> responseThrowable = new DoNotRetryIOException(thrown);<a name="line.635"></a>
<span class="sourceLineNo">636</span> } else {<a name="line.636"></a>
<span class="sourceLineNo">637</span> responseThrowable = thrown;<a name="line.637"></a>
<span class="sourceLineNo">638</span> }<a name="line.638"></a>
<span class="sourceLineNo">639</span><a name="line.639"></a>
<span class="sourceLineNo">640</span> sendErrorResponseForCall(id, totalRequestSize, span,<a name="line.640"></a>
<span class="sourceLineNo">641</span> msg + "; " + responseThrowable.getMessage(), responseThrowable);<a name="line.641"></a>
<span class="sourceLineNo">642</span> return;<a name="line.642"></a>
<span class="sourceLineNo">643</span> }<a name="line.643"></a>
<span class="sourceLineNo">644</span><a name="line.644"></a>
<span class="sourceLineNo">645</span> int timeout = 0;<a name="line.645"></a>
<span class="sourceLineNo">646</span> if (header.hasTimeout() &amp;&amp; header.getTimeout() &gt; 0) {<a name="line.646"></a>
<span class="sourceLineNo">647</span> timeout = Math.max(this.rpcServer.minClientRequestTimeout, header.getTimeout());<a name="line.647"></a>
<span class="sourceLineNo">648</span> }<a name="line.648"></a>
<span class="sourceLineNo">649</span> ServerCall&lt;?&gt; call = createCall(id, this.service, md, header, param, cellScanner,<a name="line.649"></a>
<span class="sourceLineNo">650</span> totalRequestSize, this.addr, timeout, this.callCleanup);<a name="line.650"></a>
<span class="sourceLineNo">651</span><a name="line.651"></a>
<span class="sourceLineNo">652</span> if (this.rpcServer.scheduler.dispatch(new CallRunner(this.rpcServer, call))) {<a name="line.652"></a>
<span class="sourceLineNo">653</span> // unset span do that it's not closed in the finally block<a name="line.653"></a>
<span class="sourceLineNo">654</span> span = null;<a name="line.654"></a>
<span class="sourceLineNo">655</span> } else {<a name="line.655"></a>
<span class="sourceLineNo">656</span> this.rpcServer.callQueueSizeInBytes.add(-1 * call.getSize());<a name="line.656"></a>
<span class="sourceLineNo">657</span> this.rpcServer.metrics.exception(RpcServer.CALL_QUEUE_TOO_BIG_EXCEPTION);<a name="line.657"></a>
<span class="sourceLineNo">658</span> call.setResponse(null, null, RpcServer.CALL_QUEUE_TOO_BIG_EXCEPTION,<a name="line.658"></a>
<span class="sourceLineNo">659</span> "Call queue is full on " + this.rpcServer.server.getServerName()<a name="line.659"></a>
<span class="sourceLineNo">660</span> + ", too many items queued ?");<a name="line.660"></a>
<span class="sourceLineNo">661</span> TraceUtil.setError(span, RpcServer.CALL_QUEUE_TOO_BIG_EXCEPTION);<a name="line.661"></a>
<span class="sourceLineNo">662</span> call.sendResponseIfReady();<a name="line.662"></a>
<span class="sourceLineNo">663</span> }<a name="line.663"></a>
<span class="sourceLineNo">664</span> } finally {<a name="line.664"></a>
<span class="sourceLineNo">665</span> if (span != null) {<a name="line.665"></a>
<span class="sourceLineNo">666</span> span.end();<a name="line.666"></a>
<span class="sourceLineNo">667</span> }<a name="line.667"></a>
<span class="sourceLineNo">668</span> }<a name="line.668"></a>
<span class="sourceLineNo">669</span> }<a name="line.669"></a>
<span class="sourceLineNo">670</span><a name="line.670"></a>
<span class="sourceLineNo">671</span> private void sendErrorResponseForCall(int id, long totalRequestSize, Span span, String msg,<a name="line.671"></a>
<span class="sourceLineNo">672</span> Throwable responseThrowable) throws IOException {<a name="line.672"></a>
<span class="sourceLineNo">673</span> ServerCall&lt;?&gt; failedcall = createCall(id, this.service, null, null, null, null,<a name="line.673"></a>
<span class="sourceLineNo">674</span> totalRequestSize, null, 0, this.callCleanup);<a name="line.674"></a>
<span class="sourceLineNo">675</span> failedcall.setResponse(null, null, responseThrowable, msg);<a name="line.675"></a>
<span class="sourceLineNo">676</span> TraceUtil.setError(span, responseThrowable);<a name="line.676"></a>
<span class="sourceLineNo">677</span> failedcall.sendResponseIfReady();<a name="line.677"></a>
<span class="sourceLineNo">678</span> }<a name="line.678"></a>
<span class="sourceLineNo">679</span><a name="line.679"></a>
<span class="sourceLineNo">680</span> protected final RpcResponse getErrorResponse(String msg, Exception e) throws IOException {<a name="line.680"></a>
<span class="sourceLineNo">681</span> ResponseHeader.Builder headerBuilder = ResponseHeader.newBuilder().setCallId(-1);<a name="line.681"></a>
<span class="sourceLineNo">682</span> ServerCall.setExceptionResponse(e, msg, headerBuilder);<a name="line.682"></a>
<span class="sourceLineNo">683</span> ByteBuffer headerBuf =<a name="line.683"></a>
<span class="sourceLineNo">684</span> ServerCall.createHeaderAndMessageBytes(null, headerBuilder.build(), 0, null);<a name="line.684"></a>
<span class="sourceLineNo">685</span> BufferChain buf = new BufferChain(headerBuf);<a name="line.685"></a>
<span class="sourceLineNo">686</span> return () -&gt; buf;<a name="line.686"></a>
<span class="sourceLineNo">687</span> }<a name="line.687"></a>
<span class="sourceLineNo">688</span><a name="line.688"></a>
<span class="sourceLineNo">689</span> private void doBadPreambleHandling(String msg) throws IOException {<a name="line.689"></a>
<span class="sourceLineNo">690</span> doBadPreambleHandling(msg, new FatalConnectionException(msg));<a name="line.690"></a>
<span class="sourceLineNo">691</span> }<a name="line.691"></a>
<span class="sourceLineNo">692</span><a name="line.692"></a>
<span class="sourceLineNo">693</span> private void doBadPreambleHandling(String msg, Exception e) throws IOException {<a name="line.693"></a>
<span class="sourceLineNo">694</span> RpcServer.LOG.warn(msg, e);<a name="line.694"></a>
<span class="sourceLineNo">695</span> doRespond(getErrorResponse(msg, e));<a name="line.695"></a>
<span class="sourceLineNo">696</span> }<a name="line.696"></a>
<span class="sourceLineNo">697</span><a name="line.697"></a>
<span class="sourceLineNo">698</span> private boolean doConnectionRegistryResponse() throws IOException {<a name="line.698"></a>
<span class="sourceLineNo">699</span> if (!(rpcServer.server instanceof ConnectionRegistryEndpoint)) {<a name="line.699"></a>
<span class="sourceLineNo">700</span> // should be in tests or some scenarios where we should not reach here<a name="line.700"></a>
<span class="sourceLineNo">701</span> return false;<a name="line.701"></a>
<span class="sourceLineNo">702</span> }<a name="line.702"></a>
<span class="sourceLineNo">703</span> // on backup masters, this request may be blocked since we need to fetch it from filesystem,<a name="line.703"></a>
<span class="sourceLineNo">704</span> // but since it is just backup master, it is not a critical problem<a name="line.704"></a>
<span class="sourceLineNo">705</span> String clusterId = ((ConnectionRegistryEndpoint) rpcServer.server).getClusterId();<a name="line.705"></a>
<span class="sourceLineNo">706</span> RpcServer.LOG.debug("Response connection registry, clusterId = '{}'", clusterId);<a name="line.706"></a>
<span class="sourceLineNo">707</span> if (clusterId == null) {<a name="line.707"></a>
<span class="sourceLineNo">708</span> // should be in tests or some scenarios where we should not reach here<a name="line.708"></a>
<span class="sourceLineNo">709</span> return false;<a name="line.709"></a>
<span class="sourceLineNo">710</span> }<a name="line.710"></a>
<span class="sourceLineNo">711</span> GetConnectionRegistryResponse resp =<a name="line.711"></a>
<span class="sourceLineNo">712</span> GetConnectionRegistryResponse.newBuilder().setClusterId(clusterId).build();<a name="line.712"></a>
<span class="sourceLineNo">713</span> ResponseHeader header = ResponseHeader.newBuilder().setCallId(-1).build();<a name="line.713"></a>
<span class="sourceLineNo">714</span> ByteBuffer buf = ServerCall.createHeaderAndMessageBytes(resp, header, 0, null);<a name="line.714"></a>
<span class="sourceLineNo">715</span> BufferChain bufChain = new BufferChain(buf);<a name="line.715"></a>
<span class="sourceLineNo">716</span> doRespond(() -&gt; bufChain);<a name="line.716"></a>
<span class="sourceLineNo">717</span> return true;<a name="line.717"></a>
<span class="sourceLineNo">718</span> }<a name="line.718"></a>
<span class="sourceLineNo">719</span><a name="line.719"></a>
<span class="sourceLineNo">720</span> protected final void callCleanupIfNeeded() {<a name="line.720"></a>
<span class="sourceLineNo">721</span> if (callCleanup != null) {<a name="line.721"></a>
<span class="sourceLineNo">722</span> callCleanup.run();<a name="line.722"></a>
<span class="sourceLineNo">723</span> callCleanup = null;<a name="line.723"></a>
<span class="sourceLineNo">724</span> }<a name="line.724"></a>
<span class="sourceLineNo">725</span> }<a name="line.725"></a>
<span class="sourceLineNo">726</span><a name="line.726"></a>
<span class="sourceLineNo">727</span> protected enum PreambleResponse {<a name="line.727"></a>
<span class="sourceLineNo">728</span> SUCCEED, // successfully processed the rpc preamble header<a name="line.728"></a>
<span class="sourceLineNo">729</span> CONTINUE, // the preamble header is for other purpose, wait for the rpc preamble header<a name="line.729"></a>
<span class="sourceLineNo">730</span> CLOSE // close the rpc connection<a name="line.730"></a>
<span class="sourceLineNo">731</span> }<a name="line.731"></a>
<span class="sourceLineNo">732</span><a name="line.732"></a>
<span class="sourceLineNo">733</span> protected final PreambleResponse processPreamble(ByteBuffer preambleBuffer) throws IOException {<a name="line.733"></a>
<span class="sourceLineNo">734</span> assert preambleBuffer.remaining() == 6;<a name="line.734"></a>
<span class="sourceLineNo">735</span> if (<a name="line.735"></a>
<span class="sourceLineNo">736</span> ByteBufferUtils.equals(preambleBuffer, preambleBuffer.position(), 6,<a name="line.736"></a>
<span class="sourceLineNo">737</span> RpcClient.REGISTRY_PREAMBLE_HEADER, 0, 6) &amp;&amp; doConnectionRegistryResponse()<a name="line.737"></a>
<span class="sourceLineNo">738</span> ) {<a name="line.738"></a>
<span class="sourceLineNo">739</span> return PreambleResponse.CLOSE;<a name="line.739"></a>
<span class="sourceLineNo">740</span> }<a name="line.740"></a>
<span class="sourceLineNo">741</span> if (!ByteBufferUtils.equals(preambleBuffer, preambleBuffer.position(), 4, RPC_HEADER, 0, 4)) {<a name="line.741"></a>
<span class="sourceLineNo">742</span> doBadPreambleHandling(<a name="line.742"></a>
<span class="sourceLineNo">743</span> "Expected HEADER=" + Bytes.toStringBinary(RPC_HEADER) + " but received HEADER="<a name="line.743"></a>
<span class="sourceLineNo">744</span> + Bytes.toStringBinary(<a name="line.744"></a>
<span class="sourceLineNo">745</span> ByteBufferUtils.toBytes(preambleBuffer, preambleBuffer.position(), RPC_HEADER.length),<a name="line.745"></a>
<span class="sourceLineNo">746</span> 0, RPC_HEADER.length)<a name="line.746"></a>
<span class="sourceLineNo">747</span> + " from " + toString());<a name="line.747"></a>
<span class="sourceLineNo">748</span> return PreambleResponse.CLOSE;<a name="line.748"></a>
<span class="sourceLineNo">749</span> }<a name="line.749"></a>
<span class="sourceLineNo">750</span> int version = preambleBuffer.get(preambleBuffer.position() + 4) &amp; 0xFF;<a name="line.750"></a>
<span class="sourceLineNo">751</span> byte authByte = preambleBuffer.get(preambleBuffer.position() + 5);<a name="line.751"></a>
<span class="sourceLineNo">752</span> if (version != RpcServer.CURRENT_VERSION) {<a name="line.752"></a>
<span class="sourceLineNo">753</span> String msg = getFatalConnectionString(version, authByte);<a name="line.753"></a>
<span class="sourceLineNo">754</span> doBadPreambleHandling(msg, new WrongVersionException(msg));<a name="line.754"></a>
<span class="sourceLineNo">755</span> return PreambleResponse.CLOSE;<a name="line.755"></a>
<span class="sourceLineNo">756</span> }<a name="line.756"></a>
<span class="sourceLineNo">757</span><a name="line.757"></a>
<span class="sourceLineNo">758</span> this.provider = this.saslProviders.selectProvider(authByte);<a name="line.758"></a>
<span class="sourceLineNo">759</span> if (this.provider == null) {<a name="line.759"></a>
<span class="sourceLineNo">760</span> String msg = getFatalConnectionString(version, authByte);<a name="line.760"></a>
<span class="sourceLineNo">761</span> doBadPreambleHandling(msg, new BadAuthException(msg));<a name="line.761"></a>
<span class="sourceLineNo">762</span> return PreambleResponse.CLOSE;<a name="line.762"></a>
<span class="sourceLineNo">763</span> }<a name="line.763"></a>
<span class="sourceLineNo">764</span> // TODO this is a wart while simple auth'n doesn't go through sasl.<a name="line.764"></a>
<span class="sourceLineNo">765</span> if (this.rpcServer.isSecurityEnabled &amp;&amp; isSimpleAuthentication()) {<a name="line.765"></a>
<span class="sourceLineNo">766</span> if (this.rpcServer.allowFallbackToSimpleAuth) {<a name="line.766"></a>
<span class="sourceLineNo">767</span> this.rpcServer.metrics.authenticationFallback();<a name="line.767"></a>
<span class="sourceLineNo">768</span> authenticatedWithFallback = true;<a name="line.768"></a>
<span class="sourceLineNo">769</span> } else {<a name="line.769"></a>
<span class="sourceLineNo">770</span> AccessDeniedException ae = new AccessDeniedException("Authentication is required");<a name="line.770"></a>
<span class="sourceLineNo">771</span> doRespond(getErrorResponse(ae.getMessage(), ae));<a name="line.771"></a>
<span class="sourceLineNo">772</span> return PreambleResponse.CLOSE;<a name="line.772"></a>
<span class="sourceLineNo">773</span> }<a name="line.773"></a>
<span class="sourceLineNo">774</span> }<a name="line.774"></a>
<span class="sourceLineNo">775</span> if (!this.rpcServer.isSecurityEnabled &amp;&amp; !isSimpleAuthentication()) {<a name="line.775"></a>
<span class="sourceLineNo">776</span> doRawSaslReply(SaslStatus.SUCCESS, new IntWritable(SaslUtil.SWITCH_TO_SIMPLE_AUTH), null,<a name="line.776"></a>
<span class="sourceLineNo">777</span> null);<a name="line.777"></a>
<span class="sourceLineNo">778</span> provider = saslProviders.getSimpleProvider();<a name="line.778"></a>
<span class="sourceLineNo">779</span> // client has already sent the initial Sasl message and we<a name="line.779"></a>
<span class="sourceLineNo">780</span> // should ignore it. Both client and server should fall back<a name="line.780"></a>
<span class="sourceLineNo">781</span> // to simple auth from now on.<a name="line.781"></a>
<span class="sourceLineNo">782</span> skipInitialSaslHandshake = true;<a name="line.782"></a>
<span class="sourceLineNo">783</span> }<a name="line.783"></a>
<span class="sourceLineNo">784</span> useSasl = !(provider instanceof SimpleSaslServerAuthenticationProvider);<a name="line.784"></a>
<span class="sourceLineNo">785</span> return PreambleResponse.SUCCEED;<a name="line.785"></a>
<span class="sourceLineNo">786</span> }<a name="line.786"></a>
<span class="sourceLineNo">787</span><a name="line.787"></a>
<span class="sourceLineNo">788</span> boolean isSimpleAuthentication() {<a name="line.788"></a>
<span class="sourceLineNo">789</span> return Objects.requireNonNull(provider) instanceof SimpleSaslServerAuthenticationProvider;<a name="line.789"></a>
<span class="sourceLineNo">790</span> }<a name="line.790"></a>
<span class="sourceLineNo">791</span><a name="line.791"></a>
<span class="sourceLineNo">792</span> public abstract boolean isConnectionOpen();<a name="line.792"></a>
<span class="sourceLineNo">793</span><a name="line.793"></a>
<span class="sourceLineNo">794</span> public abstract ServerCall&lt;?&gt; createCall(int id, BlockingService service, MethodDescriptor md,<a name="line.794"></a>
<span class="sourceLineNo">795</span> RequestHeader header, Message param, CellScanner cellScanner, long size,<a name="line.795"></a>
<span class="sourceLineNo">796</span> InetAddress remoteAddress, int timeout, CallCleanup reqCleanup);<a name="line.796"></a>
<span class="sourceLineNo">797</span><a name="line.797"></a>
<span class="sourceLineNo">798</span> private static class ByteBuffByteInput extends ByteInput {<a name="line.798"></a>
<span class="sourceLineNo">799</span><a name="line.799"></a>
<span class="sourceLineNo">800</span> private ByteBuff buf;<a name="line.800"></a>
<span class="sourceLineNo">801</span> private int length;<a name="line.801"></a>
<span class="sourceLineNo">802</span><a name="line.802"></a>
<span class="sourceLineNo">803</span> ByteBuffByteInput(ByteBuff buf, int length) {<a name="line.803"></a>
<span class="sourceLineNo">804</span> this.buf = buf;<a name="line.804"></a>
<span class="sourceLineNo">805</span> this.length = length;<a name="line.805"></a>
<span class="sourceLineNo">806</span> }<a name="line.806"></a>
<span class="sourceLineNo">807</span><a name="line.807"></a>
<span class="sourceLineNo">808</span> @Override<a name="line.808"></a>
<span class="sourceLineNo">809</span> public byte read(int offset) {<a name="line.809"></a>
<span class="sourceLineNo">810</span> return this.buf.get(offset);<a name="line.810"></a>
<span class="sourceLineNo">811</span> }<a name="line.811"></a>
<span class="sourceLineNo">812</span><a name="line.812"></a>
<span class="sourceLineNo">813</span> @Override<a name="line.813"></a>
<span class="sourceLineNo">814</span> public int read(int offset, byte[] out, int outOffset, int len) {<a name="line.814"></a>
<span class="sourceLineNo">815</span> this.buf.get(offset, out, outOffset, len);<a name="line.815"></a>
<span class="sourceLineNo">816</span> return len;<a name="line.816"></a>
<span class="sourceLineNo">817</span> }<a name="line.817"></a>
<span class="sourceLineNo">818</span><a name="line.818"></a>
<span class="sourceLineNo">819</span> @Override<a name="line.819"></a>
<span class="sourceLineNo">820</span> public int read(int offset, ByteBuffer out) {<a name="line.820"></a>
<span class="sourceLineNo">821</span> int len = out.remaining();<a name="line.821"></a>
<span class="sourceLineNo">822</span> this.buf.get(out, offset, len);<a name="line.822"></a>
<span class="sourceLineNo">823</span> return len;<a name="line.823"></a>
<span class="sourceLineNo">824</span> }<a name="line.824"></a>
<span class="sourceLineNo">825</span><a name="line.825"></a>
<span class="sourceLineNo">826</span> @Override<a name="line.826"></a>
<span class="sourceLineNo">827</span> public int size() {<a name="line.827"></a>
<span class="sourceLineNo">828</span> return this.length;<a name="line.828"></a>
<span class="sourceLineNo">829</span> }<a name="line.829"></a>
<span class="sourceLineNo">830</span> }<a name="line.830"></a>
<span class="sourceLineNo">831</span>}<a name="line.831"></a>
</pre>
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