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1 package ch.ethz.ssh2.packets;
2
3 import java.io.IOException  ;
4
5
11 public class PacketChannelOpenConfirmation
12 {
13 byte[] payload;
14
15 public int recipientChannelID;
16 public int senderChannelID;
17 public int initialWindowSize;
18 public int maxPacketSize;
19
20 public PacketChannelOpenConfirmation(int recipientChannelID, int senderChannelID, int initialWindowSize,
21 int maxPacketSize)
22 {
23 this.recipientChannelID = recipientChannelID;
24 this.senderChannelID = senderChannelID;
25 this.initialWindowSize = initialWindowSize;
26 this.maxPacketSize = maxPacketSize;
27 }
28
29 public PacketChannelOpenConfirmation(byte payload[], int off, int len) throws IOException
30 {
31 this.payload = new byte[len];
32 System.arraycopy(payload, off, this.payload, 0, len);
33
34 TypesReader tr = new TypesReader(payload, off, len);
35
36 int packet_type = tr.readByte();
37
38 if (packet_type != Packets.SSH_MSG_CHANNEL_OPEN_CONFIRMATION)
39 throw new IOException (
40 "This is not a SSH_MSG_CHANNEL_OPEN_CONFIRMATION! ("
41 + packet_type + ")");
42
43 recipientChannelID = tr.readUINT32();
44 senderChannelID = tr.readUINT32();
45 initialWindowSize = tr.readUINT32();
46 maxPacketSize = tr.readUINT32();
47
48 if (tr.remain() != 0)
49 throw new IOException ("Padding in SSH_MSG_CHANNEL_OPEN_CONFIRMATION packet!");
50 }
51
52 public byte[] getPayload()
53 {
54 if (payload == null)
55 {
56 TypesWriter tw = new TypesWriter();
57 tw.writeByte(Packets.SSH_MSG_CHANNEL_OPEN_CONFIRMATION);
58 tw.writeUINT32(recipientChannelID);
59 tw.writeUINT32(senderChannelID);
60 tw.writeUINT32(initialWindowSize);
61 tw.writeUINT32(maxPacketSize);
62 payload = tw.getBytes();
63 }
64 return payload;
65 }
66 }
67 |
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