1 /* 2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved. 3 * Please refer to the LICENSE.txt for licensing details. 4 */ 5 package ch.ethz.ssh2.packets; 6 7 import java.io.IOException; 8 9 /** 10 * PacketChannelOpenConfirmation. 11 * 12 * @author Christian Plattner 13 * @version 2.50, 03/15/10 14 */ 15 public class PacketChannelOpenConfirmation 16 { 17 byte[] payload; 18 19 public int recipientChannelID; 20 public int senderChannelID; 21 public int initialWindowSize; 22 public int maxPacketSize; 23 24 public PacketChannelOpenConfirmation(int recipientChannelID, int senderChannelID, int initialWindowSize, 25 int maxPacketSize) 26 { 27 this.recipientChannelID = recipientChannelID; 28 this.senderChannelID = senderChannelID; 29 this.initialWindowSize = initialWindowSize; 30 this.maxPacketSize = maxPacketSize; 31 } 32 33 public PacketChannelOpenConfirmation(byte payload[], int off, int len) throws IOException 34 { 35 this.payload = new byte[len]; 36 System.arraycopy(payload, off, this.payload, 0, len); 37 38 TypesReader tr = new TypesReader(payload, off, len); 39 40 int packet_type = tr.readByte(); 41 42 if (packet_type != Packets.SSH_MSG_CHANNEL_OPEN_CONFIRMATION) 43 throw new IOException( 44 "This is not a SSH_MSG_CHANNEL_OPEN_CONFIRMATION! (" 45 + packet_type + ")"); 46 47 recipientChannelID = tr.readUINT32(); 48 senderChannelID = tr.readUINT32(); 49 initialWindowSize = tr.readUINT32(); 50 maxPacketSize = tr.readUINT32(); 51 52 if (tr.remain() != 0) 53 throw new IOException("Padding in SSH_MSG_CHANNEL_OPEN_CONFIRMATION packet!"); 54 } 55 56 public byte[] getPayload() 57 { 58 if (payload == null) 59 { 60 TypesWriter tw = new TypesWriter(); 61 tw.writeByte(Packets.SSH_MSG_CHANNEL_OPEN_CONFIRMATION); 62 tw.writeUINT32(recipientChannelID); 63 tw.writeUINT32(senderChannelID); 64 tw.writeUINT32(initialWindowSize); 65 tw.writeUINT32(maxPacketSize); 66 payload = tw.getBytes(); 67 } 68 return payload; 69 } 70 } 71
