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comparison src/ch/ethz/ssh2/packets/PacketKexInit.java @ 273:91a31873c42a ganymed

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start conversion from trilead to ganymed
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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272:ce2f4e397703 273:91a31873c42a
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 import java.security.SecureRandom;
9
10 import ch.ethz.ssh2.PacketFormatException;
11 import ch.ethz.ssh2.PacketTypeException;
12 import ch.ethz.ssh2.crypto.CryptoWishList;
13 import ch.ethz.ssh2.transport.KexParameters;
14
15 /**
16 * @author Christian Plattner
17 * @version $Id: PacketKexInit.java 160 2014-05-01 14:30:26Z dkocher@sudo.ch $
18 */
19 public final class PacketKexInit {
20 private final byte[] payload;
21
22 KexParameters kp = new KexParameters();
23
24 public PacketKexInit(CryptoWishList cwl, SecureRandom rnd) {
25 kp.cookie = new byte[16];
26 rnd.nextBytes(kp.cookie);
27
28 kp.kex_algorithms = cwl.kexAlgorithms;
29 kp.server_host_key_algorithms = cwl.serverHostKeyAlgorithms;
30 kp.encryption_algorithms_client_to_server = cwl.c2s_enc_algos;
31 kp.encryption_algorithms_server_to_client = cwl.s2c_enc_algos;
32 kp.mac_algorithms_client_to_server = cwl.c2s_mac_algos;
33 kp.mac_algorithms_server_to_client = cwl.s2c_mac_algos;
34 kp.compression_algorithms_client_to_server = cwl.c2s_comp_algos;
35 kp.compression_algorithms_server_to_client = cwl.s2c_comp_algos;
36 kp.languages_client_to_server = new String[]{""};
37 kp.languages_server_to_client = new String[]{""};
38 kp.first_kex_packet_follows = false;
39 kp.reserved_field1 = 0;
40
41 TypesWriter tw = new TypesWriter();
42 tw.writeByte(Packets.SSH_MSG_KEXINIT);
43 tw.writeBytes(kp.cookie, 0, 16);
44 tw.writeNameList(kp.kex_algorithms);
45 tw.writeNameList(kp.server_host_key_algorithms);
46 tw.writeNameList(kp.encryption_algorithms_client_to_server);
47 tw.writeNameList(kp.encryption_algorithms_server_to_client);
48 tw.writeNameList(kp.mac_algorithms_client_to_server);
49 tw.writeNameList(kp.mac_algorithms_server_to_client);
50 tw.writeNameList(kp.compression_algorithms_client_to_server);
51 tw.writeNameList(kp.compression_algorithms_server_to_client);
52 tw.writeNameList(kp.languages_client_to_server);
53 tw.writeNameList(kp.languages_server_to_client);
54 tw.writeBoolean(kp.first_kex_packet_follows);
55 tw.writeUINT32(kp.reserved_field1);
56 payload = tw.getBytes();
57 }
58
59 public PacketKexInit(byte payload[]) throws IOException {
60 this.payload = payload;
61
62 TypesReader tr = new TypesReader(payload);
63
64 int packet_type = tr.readByte();
65
66 if(packet_type != Packets.SSH_MSG_KEXINIT) {
67 throw new PacketTypeException(packet_type);
68 }
69 kp.cookie = tr.readBytes(16);
70 kp.kex_algorithms = tr.readNameList();
71 kp.server_host_key_algorithms = tr.readNameList();
72 kp.encryption_algorithms_client_to_server = tr.readNameList();
73 kp.encryption_algorithms_server_to_client = tr.readNameList();
74 kp.mac_algorithms_client_to_server = tr.readNameList();
75 kp.mac_algorithms_server_to_client = tr.readNameList();
76 kp.compression_algorithms_client_to_server = tr.readNameList();
77 kp.compression_algorithms_server_to_client = tr.readNameList();
78 kp.languages_client_to_server = tr.readNameList();
79 kp.languages_server_to_client = tr.readNameList();
80 kp.first_kex_packet_follows = tr.readBoolean();
81 kp.reserved_field1 = tr.readUINT32();
82
83 if(tr.remain() != 0) {
84 throw new PacketFormatException(String.format("Padding in %s", Packets.getMessageName(packet_type)));
85 }
86 }
87
88 public byte[] getPayload() {
89 return payload;
90 }
91
92 public KexParameters getKexParameters() {
93 return kp;
94 }
95
96 public String[] getCompression_algorithms_client_to_server() {
97 return kp.compression_algorithms_client_to_server;
98 }
99
100 public String[] getCompression_algorithms_server_to_client() {
101 return kp.compression_algorithms_server_to_client;
102 }
103
104 public byte[] getCookie() {
105 return kp.cookie;
106 }
107
108 public String[] getEncryption_algorithms_client_to_server() {
109 return kp.encryption_algorithms_client_to_server;
110 }
111
112 public String[] getEncryption_algorithms_server_to_client() {
113 return kp.encryption_algorithms_server_to_client;
114 }
115
116 public boolean isFirst_kex_packet_follows() {
117 return kp.first_kex_packet_follows;
118 }
119
120 public String[] getKex_algorithms() {
121 return kp.kex_algorithms;
122 }
123
124 public String[] getLanguages_client_to_server() {
125 return kp.languages_client_to_server;
126 }
127
128 public String[] getLanguages_server_to_client() {
129 return kp.languages_server_to_client;
130 }
131
132 public String[] getMac_algorithms_client_to_server() {
133 return kp.mac_algorithms_client_to_server;
134 }
135
136 public String[] getMac_algorithms_server_to_client() {
137 return kp.mac_algorithms_server_to_client;
138 }
139
140 public int getReserved_field1() {
141 return kp.reserved_field1;
142 }
143
144 public String[] getServer_host_key_algorithms() {
145 return kp.server_host_key_algorithms;
146 }
147 }