Showing the changes to java/pkg/sun/security/ssl/HandshakeOutStream.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 1996, 2009, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | + | |
| 27 | +package sun.security.ssl; | |
| 28 | + | |
| 29 | +import java.io.OutputStream; | |
| 30 | +import java.io.IOException; | |
| 31 | +import java.security.MessageDigest; | |
| 32 | + | |
| 33 | +/** | |
| 34 | + * Output stream for handshake data. This is used only internally | |
| 35 | + * to the SSL classes. | |
| 36 | + * | |
| 37 | + * MT note: one thread at a time is presumed be writing handshake | |
| 38 | + * messages, but (after initial connection setup) it's possible to | |
| 39 | + * have other threads reading/writing application data. It's the | |
| 40 | + * SSLSocketImpl class that synchronizes record writes. | |
| 41 | + * | |
| 42 | + * @author David Brownell | |
| 43 | + */ | |
| 44 | +public class HandshakeOutStream extends OutputStream { | |
| 45 | + | |
| 46 | + private SSLSocketImpl socket; | |
| 47 | + private SSLEngineImpl engine; | |
| 48 | + | |
| 49 | + OutputRecord r; | |
| 50 | + | |
| 51 | + HandshakeOutStream(ProtocolVersion protocolVersion, | |
| 52 | + ProtocolVersion helloVersion, HandshakeHash handshakeHash, | |
| 53 | + SSLSocketImpl socket) { | |
| 54 | + this.socket = socket; | |
| 55 | + r = new OutputRecord(Record.ct_handshake); | |
| 56 | + init(protocolVersion, helloVersion, handshakeHash); | |
| 57 | + } | |
| 58 | + | |
| 59 | + HandshakeOutStream(ProtocolVersion protocolVersion, | |
| 60 | + ProtocolVersion helloVersion, HandshakeHash handshakeHash, | |
| 61 | + SSLEngineImpl engine) { | |
| 62 | + this.engine = engine; | |
| 63 | + r = new EngineOutputRecord(Record.ct_handshake, engine); | |
| 64 | + init(protocolVersion, helloVersion, handshakeHash); | |
| 65 | + } | |
| 66 | + | |
| 67 | + private void init(ProtocolVersion protocolVersion, | |
| 68 | + ProtocolVersion helloVersion, HandshakeHash handshakeHash) { | |
| 69 | + r.setVersion(protocolVersion); | |
| 70 | + r.setHelloVersion(helloVersion); | |
| 71 | + r.setHandshakeHash(handshakeHash); | |
| 72 | + } | |
| 73 | + | |
| 74 | + | |
| 75 | + /* | |
| 76 | + * Update the handshake data hashes ... mostly for use after a | |
| 77 | + * client cert has been sent, so the cert verify message can be | |
| 78 | + * constructed correctly yet without forcing extra I/O. In all | |
| 79 | + * other cases, automatic hash calculation suffices. | |
| 80 | + */ | |
| 81 | + void doHashes() { | |
| 82 | + r.doHashes(); | |
| 83 | + } | |
| 84 | + | |
| 85 | + /* | |
| 86 | + * Write some data out onto the stream ... buffers as much as possible. | |
| 87 | + * Hashes are updated automatically if something gets flushed to the | |
| 88 | + * network (e.g. a big cert message etc). | |
| 89 | + */ | |
| 90 | + public void write(byte buf[], int off, int len) throws IOException { | |
| 91 | + while (len > 0) { | |
| 92 | + int howmuch = Math.min(len, r.availableDataBytes()); | |
| 93 | + | |
| 94 | + if (howmuch == 0) { | |
| 95 | + flush(); | |
| 96 | + } else { | |
| 97 | + r.write(buf, off, howmuch); | |
| 98 | + off += howmuch; | |
| 99 | + len -= howmuch; | |
| 100 | + } | |
| 101 | + } | |
| 102 | + } | |
| 103 | + | |
| 104 | + /* | |
| 105 | + * write-a-byte | |
| 106 | + */ | |
| 107 | + public void write(int i) throws IOException { | |
| 108 | + if (r.availableDataBytes() < 1) { | |
| 109 | + flush(); | |
| 110 | + } | |
| 111 | + r.write(i); | |
| 112 | + } | |
| 113 | + | |
| 114 | + public void flush() throws IOException { | |
| 115 | + if (socket != null) { | |
| 116 | + try { | |
| 117 | + socket.writeRecord(r); | |
| 118 | + } catch (IOException e) { | |
| 119 | + // Had problems writing; check if there was an | |
| 120 | + // alert from peer. If alert received, waitForClose | |
| 121 | + // will throw an exception for the alert | |
| 122 | + socket.waitForClose(true); | |
| 123 | + | |
| 124 | + // No alert was received, just rethrow exception | |
| 125 | + throw e; | |
| 126 | + } | |
| 127 | + } else { // engine != null | |
| 128 | + /* | |
| 129 | + * Even if record might be empty, flush anyway in case | |
| 130 | + * there is a finished handshake message that we need | |
| 131 | + * to queue. | |
| 132 | + */ | |
| 133 | + engine.writeRecord((EngineOutputRecord)r); | |
| 134 | + } | |
| 135 | + } | |
| 136 | + | |
| 137 | + /* | |
| 138 | + * Tell the OutputRecord that a finished message was | |
| 139 | + * contained either in this record or the one immeiately | |
| 140 | + * preceeding it. We need to reliably pass back notifications | |
| 141 | + * that a finish message occured. | |
| 142 | + */ | |
| 143 | + void setFinishedMsg() { | |
| 144 | + assert(socket == null); | |
| 145 | + | |
| 146 | + ((EngineOutputRecord)r).setFinishedMsg(); | |
| 147 | + } | |
| 148 | + | |
| 149 | + /* | |
| 150 | + * Put integers encoded in standard 8, 16, 24, and 32 bit | |
| 151 | + * big endian formats. Note that OutputStream.write(int) only | |
| 152 | + * writes the least significant 8 bits and ignores the rest. | |
| 153 | + */ | |
| 154 | + | |
| 155 | + void putInt8(int i) throws IOException { | |
| 156 | + r.write(i); | |
| 157 | + } | |
| 158 | + | |
| 159 | + void putInt16(int i) throws IOException { | |
| 160 | + if (r.availableDataBytes() < 2) { | |
| 161 | + flush(); | |
| 162 | + } | |
| 163 | + r.write(i >> 8); | |
| 164 | + r.write(i); | |
| 165 | + } | |
| 166 | + | |
| 167 | + void putInt24(int i) throws IOException { | |
| 168 | + if (r.availableDataBytes() < 3) { | |
| 169 | + flush(); | |
| 170 | + } | |
| 171 | + r.write(i >> 16); | |
| 172 | + r.write(i >> 8); | |
| 173 | + r.write(i); | |
| 174 | + } | |
| 175 | + | |
| 176 | + void putInt32(int i) throws IOException { | |
| 177 | + if (r.availableDataBytes() < 4) { | |
| 178 | + flush(); | |
| 179 | + } | |
| 180 | + r.write(i >> 24); | |
| 181 | + r.write(i >> 16); | |
| 182 | + r.write(i >> 8); | |
| 183 | + r.write(i); | |
| 184 | + } | |
| 185 | + | |
| 186 | + /* | |
| 187 | + * Put byte arrays with length encoded as 8, 16, 24 bit | |
| 188 | + * integers in big-endian format. | |
| 189 | + */ | |
| 190 | + void putBytes8(byte b[]) throws IOException { | |
| 191 | + if (b == null) { | |
| 192 | + putInt8(0); | |
| 193 | + return; | |
| 194 | + } | |
| 195 | + putInt8(b.length); | |
| 196 | + write(b, 0, b.length); | |
| 197 | + } | |
| 198 | + | |
| 199 | + public void putBytes16(byte b[]) throws IOException { | |
| 200 | + if (b == null) { | |
| 201 | + putInt16(0); | |
| 202 | + return; | |
| 203 | + } | |
| 204 | + putInt16(b.length); | |
| 205 | + write(b, 0, b.length); | |
| 206 | + } | |
| 207 | + | |
| 208 | + void putBytes24(byte b[]) throws IOException { | |
| 209 | + if (b == null) { | |
| 210 | + putInt24(0); | |
| 211 | + return; | |
| 212 | + } | |
| 213 | + putInt24(b.length); | |
| 214 | + write(b, 0, b.length); | |
| 215 | + } | |
| 216 | +} | |