1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/***************************************************************************
* fqterm, a terminal emulator for both BBS and *nix. *
* Copyright (C) 2008 fqterm development group. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#include "fqterm_trace.h"
#include "fqterm_ssh_buffer.h"
#include "fqterm_ssh_packet.h"
#include "fqterm_ssh_des.h"
#include "fqterm_serialization.h"
#include "crc32.h"
namespace FQTerm {
//==============================================================================
//FQTermSSHPacketSender
//==============================================================================
FQTermSSHPacketSender::FQTermSSHPacketSender() {
buffer_ = new FQTermSSHBuffer(1024);
output_buffer_ = new FQTermSSHBuffer(1024);
is_encrypt_ = false;
cipher_type_ = SSH_CIPHER_NONE;
cipher_ = NULL;
setEncryptionType(SSH_CIPHER_3DES);
is_mac_ = false;
mac_type_ = FQTERM_SSH_MAC_NONE;
mac_ = NULL;
is_compressed_ = false;
sequence_no_ = 0;
}
FQTermSSHPacketSender::~FQTermSSHPacketSender() {
delete buffer_;
delete output_buffer_;
if (is_encrypt_) {
delete cipher_;
}
}
void FQTermSSHPacketSender::putRawData(const char *data, int len) {
buffer_->putRawData(data, len);
}
void FQTermSSHPacketSender::putByte(int data) {
buffer_->putByte(data);
}
void FQTermSSHPacketSender::putInt(u_int data) {
buffer_->putInt(data);
}
void FQTermSSHPacketSender::putString(const char *string, int len) {
buffer_->putString(string, len);
}
void FQTermSSHPacketSender::putBN(BIGNUM *bn) {
buffer_->putSSH1BN(bn);
}
void FQTermSSHPacketSender::putBN2(BIGNUM *bn) {
buffer_->putSSH2BN(bn);
}
void FQTermSSHPacketSender::startPacket(int pkt_type) {
buffer_->clear();
buffer_->putByte(pkt_type);
}
void FQTermSSHPacketSender::write() {
makePacket();
emit dataToWrite();
}
void FQTermSSHPacketSender::setEncryptionType(int cipherType) {
cipher_type_ = cipherType;
delete cipher_;
cipher_ = NULL;
switch (cipher_type_) {
case SSH_CIPHER_3DES:
cipher_ = new FQTermSSH1DES3;
break;
}
}
void FQTermSSHPacketSender::startEncryption(const u_char *key, const u_char *IV) {
is_encrypt_ = true;
cipher_->setIV(IV);
cipher_->setKey(key);
}
void FQTermSSHPacketSender::resetEncryption() {
is_encrypt_ = false;
}
void FQTermSSHPacketSender::setMacType(int macType) {
mac_type_ = macType;
delete mac_;
mac_ = NULL;
switch (mac_type_) {
case FQTERM_SSH_HMAC_SHA1:
mac_ = new FQTermSSHSHA1;
break;
}
}
void FQTermSSHPacketSender::startMac(const u_char *key) {
is_mac_ = true;
mac_->setKey(key);
}
void FQTermSSHPacketSender::resetMac() {
is_mac_ = false;
}
//==============================================================================
//FQTermSSHPacketReceiver
//==============================================================================
FQTermSSHPacketReceiver::FQTermSSHPacketReceiver() {
buffer_ = new FQTermSSHBuffer(1024);
is_decrypt_ = false;
cipher_type_ = SSH_CIPHER_NONE;
cipher_ = NULL;
setEncryptionType(SSH_CIPHER_3DES);
is_mac_ = false;
mac_type_ = FQTERM_SSH_MAC_NONE;
mac_ = NULL;
is_compressed_ = false;
sequence_no_ = 0;
}
FQTermSSHPacketReceiver::~FQTermSSHPacketReceiver() {
delete buffer_;
if (is_decrypt_) {
delete cipher_;
}
}
void FQTermSSHPacketReceiver::getRawData(char *data, int length) {
buffer_->getRawData(data, length);
}
u_char FQTermSSHPacketReceiver::getByte() {
return buffer_->getByte();
}
u_int FQTermSSHPacketReceiver::getInt() {
return buffer_->getInt();
}
void *FQTermSSHPacketReceiver::getString(int *length) {
return buffer_->getString(length);
}
void FQTermSSHPacketReceiver::getBN(BIGNUM *bignum) {
buffer_->getSSH1BN(bignum);
}
void FQTermSSHPacketReceiver::getBN2(BIGNUM *bignum) {
buffer_->getSSH2BN(bignum);
}
void FQTermSSHPacketReceiver::consume(int len) {
buffer_->consume(len);
}
void FQTermSSHPacketReceiver::setEncryptionType(int cipherType) {
cipher_type_ = cipherType;
delete cipher_;
cipher_ = NULL;
switch (cipher_type_) {
case SSH_CIPHER_3DES:
cipher_ = new FQTermSSH1DES3;
break;
}
}
void FQTermSSHPacketReceiver::startEncryption(const u_char *key, const u_char *IV) {
is_decrypt_ = true;
cipher_->setIV(IV);
cipher_->setKey(key);
}
void FQTermSSHPacketReceiver::resetEncryption() {
is_decrypt_ = false;
}
void FQTermSSHPacketReceiver::setMacType(int macType) {
mac_type_ = macType;
delete mac_;
mac_ = NULL;
switch (mac_type_) {
case FQTERM_SSH_HMAC_SHA1:
mac_ = new FQTermSSHSHA1;
break;
}
}
void FQTermSSHPacketReceiver::startMac(const u_char *key) {
is_mac_ = true;
mac_->setKey(key);
}
void FQTermSSHPacketReceiver::resetMac() {
is_mac_ = false;
}
} // namespace FQTerm
#include "fqterm_ssh_packet.moc"
|
