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annotate src/ch/ethz/ssh2/packets/PacketOpenSessionChannel.java @ 273:91a31873c42a ganymed

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author Carl Byington <carl@five-ten-sg.com>
date Fri, 18 Jul 2014 11:21:46 -0700
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children 071eccdff8ea
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1 /*
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2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
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3 * Please refer to the LICENSE.txt for licensing details.
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4 */
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5 package ch.ethz.ssh2.packets;
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6
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7 import java.io.IOException;
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8
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9 import ch.ethz.ssh2.PacketFormatException;
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10 import ch.ethz.ssh2.PacketTypeException;
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11
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12 /**
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13 * @author Christian Plattner
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14 * @version $Id: PacketOpenSessionChannel.java 160 2014-05-01 14:30:26Z dkocher@sudo.ch $
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15 */
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16 public final class PacketOpenSessionChannel {
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17 private final byte[] payload;
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18
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19 public PacketOpenSessionChannel(int channelID, int initialWindowSize, int maxPacketSize) {
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20 TypesWriter tw = new TypesWriter();
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21 tw.writeByte(Packets.SSH_MSG_CHANNEL_OPEN);
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22 tw.writeString("session");
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23 tw.writeUINT32(channelID);
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24 tw.writeUINT32(initialWindowSize);
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25 tw.writeUINT32(maxPacketSize);
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26 payload = tw.getBytes();
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27 }
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28
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29 public PacketOpenSessionChannel(byte payload[]) throws IOException {
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30 this.payload = payload;
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31
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32 TypesReader tr = new TypesReader(payload);
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33
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34 int packet_type = tr.readByte();
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35
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36 if(packet_type != Packets.SSH_MSG_CHANNEL_OPEN) {
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37 throw new PacketTypeException(packet_type);
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38 }
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39
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40 int channelID = tr.readUINT32();
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41 int initialWindowSize = tr.readUINT32();
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42 int maxPacketSize = tr.readUINT32();
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43
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44 if(tr.remain() != 0) {
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45 throw new PacketFormatException(String.format("Padding in %s", Packets.getMessageName(packet_type)));
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46 }
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47 }
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48
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49 public byte[] getPayload() {
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50 return payload;
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51 }
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52 }