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
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
|
/**************************************************************************/
/* */
/* Copyright (c) 2001, 2009 NoMachine, http://www.nomachine.com/. */
/* */
/* NXCOMP, NX protocol compression and NX extensions to this software */
/* are copyright of NoMachine. Redistribution and use of the present */
/* software is allowed according to terms specified in the file LICENSE */
/* which comes in the source distribution. */
/* */
/* Check http://www.nomachine.com/licensing.html for applicability. */
/* */
/* NX and NoMachine are trademarks of Medialogic S.p.A. */
/* */
/* All rights reserved. */
/* */
/**************************************************************************/
#include "GenericReply.h"
#include "ServerCache.h"
#include "EncodeBuffer.h"
#include "DecodeBuffer.h"
#include "WriteBuffer.h"
//
// Set the verbosity level.
//
#define PANIC
#define WARNING
#undef TEST
#undef DEBUG
#undef DUMP
//
// Constructors and destructors.
//
GenericReplyStore::GenericReplyStore(StaticCompressor *compressor)
: MessageStore(compressor)
{
enableCache = GENERICREPLY_ENABLE_CACHE;
enableData = GENERICREPLY_ENABLE_DATA;
enableSplit = GENERICREPLY_ENABLE_SPLIT;
enableCompress = GENERICREPLY_ENABLE_COMPRESS;
if (control -> isProtoStep7() == 1)
{
enableCompress = GENERICREPLY_ENABLE_COMPRESS_IF_PROTO_STEP_7;
}
dataLimit = GENERICREPLY_DATA_LIMIT;
dataOffset = GENERICREPLY_DATA_OFFSET;
cacheSlots = GENERICREPLY_CACHE_SLOTS;
cacheThreshold = GENERICREPLY_CACHE_THRESHOLD;
cacheLowerThreshold = GENERICREPLY_CACHE_LOWER_THRESHOLD;
messages_ -> resize(cacheSlots);
for (T_messages::iterator i = messages_ -> begin();
i < messages_ -> end(); i++)
{
*i = NULL;
}
temporary_ = NULL;
}
GenericReplyStore::~GenericReplyStore()
{
for (T_messages::iterator i = messages_ -> begin();
i < messages_ -> end(); i++)
{
destroy(*i);
}
destroy(temporary_);
}
//
// Here are the methods to handle messages' content.
//
int GenericReplyStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer,
const unsigned int size, int bigEndian,
ChannelCache *channelCache) const
{
ServerCache *serverCache = (ServerCache *) channelCache;
#ifdef DEBUG
*logofs << name() << ": Encoding full message identity.\n"
<< logofs_flush;
#endif
encodeBuffer.encodeValue(GetULONG(buffer + 4, bigEndian), 32, 15);
encodeBuffer.encodeCachedValue(*(buffer + 1), 8,
serverCache -> genericReplyCharCache);
for (unsigned int i = 0; i < 6; i++)
{
encodeBuffer.encodeCachedValue(GetULONG(buffer + i * 4 + 8, bigEndian), 32,
*serverCache -> genericReplyIntCache[i]);
}
#ifdef DEBUG
*logofs << name() << ": Encoded full message identity.\n"
<< logofs_flush;
#endif
return 1;
}
int GenericReplyStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer,
unsigned int &size, int bigEndian, WriteBuffer *writeBuffer,
ChannelCache *channelCache) const
{
ServerCache *serverCache = (ServerCache *) channelCache;
#ifdef DEBUG
*logofs << name() << ": Decoding full message identity.\n"
<< logofs_flush;
#endif
decodeBuffer.decodeValue(size, 32, 15);
size = 32 + (size << 2);
buffer = writeBuffer -> addMessage(size);
decodeBuffer.decodeCachedValue(*(buffer + 1), 8,
serverCache -> genericReplyCharCache);
unsigned int value;
for (unsigned int i = 0; i < 6; i++)
{
decodeBuffer.decodeCachedValue(value, 32,
*serverCache -> genericReplyIntCache[i]);
PutULONG(value, buffer + i * 4 + 8, bigEndian);
}
#ifdef DEBUG
*logofs << name() << ": Decoded full message identity.\n"
<< logofs_flush;
#endif
return 1;
}
int GenericReplyStore::parseIdentity(Message *message, const unsigned char *buffer,
unsigned int size, int bigEndian) const
{
GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
genericReply -> byte_data = *(buffer + 1);
for (int i = 0; i < 12; i++)
{
genericReply -> short_data[i] = GetUINT(buffer + i * 2 + 8, bigEndian);
}
#ifdef DEBUG
*logofs << name() << ": Parsed identity for message at "
<< message << ".\n" << logofs_flush;
#endif
return 1;
}
int GenericReplyStore::unparseIdentity(const Message *message, unsigned char *buffer,
unsigned int size, int bigEndian) const
{
GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
*(buffer + 1) = genericReply -> byte_data;
for (int i = 0; i < 12; i++)
{
PutUINT(genericReply -> short_data[i], buffer + i * 2 + 8, bigEndian);
}
#ifdef DEBUG
*logofs << name() << ": Unparsed identity for message at "
<< message << ".\n" << logofs_flush;
#endif
return 1;
}
void GenericReplyStore::dumpIdentity(const Message *message) const
{
#ifdef DUMP
GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
*logofs << name() << ": Identity byte_data "
<< (unsigned) genericReply -> byte_data;
for (int i = 0; i < 12; i++)
{
*logofs << ", short_data[" << i << "]"
<< (unsigned) genericReply -> short_data[i];
}
*logofs << ", size " << genericReply -> size_ << ".\n";
#endif
}
void GenericReplyStore::identityChecksum(const Message *message, const unsigned char *buffer,
unsigned int size, int bigEndian) const
{
}
void GenericReplyStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
const Message *cachedMessage,
ChannelCache *channelCache) const
{
//
// Encode the variant part.
//
GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
GenericReplyMessage *cachedGenericReply = (GenericReplyMessage *) cachedMessage;
ServerCache *serverCache = (ServerCache *) channelCache;
#ifdef TEST
*logofs << name() << ": Encoding value "
<< (unsigned int) genericReply -> byte_data
<< " as byte_data field.\n" << logofs_flush;
#endif
encodeBuffer.encodeCachedValue(genericReply -> byte_data, 8,
serverCache -> genericReplyCharCache);
cachedGenericReply -> byte_data = genericReply -> byte_data;
for (unsigned int i = 0; i < 12; i++)
{
#ifdef TEST
*logofs << name() << ": Encoding value " << genericReply -> short_data[i]
<< " as short_data[" << i << "] field.\n" << logofs_flush;
#endif
encodeBuffer.encodeCachedValue(genericReply -> short_data[i], 16,
*serverCache -> genericReplyIntCache[i]);
cachedGenericReply -> short_data[i] = genericReply -> short_data[i];
}
}
void GenericReplyStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
ChannelCache *channelCache) const
{
//
// Decode the variant part.
//
GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
ServerCache *serverCache = (ServerCache *) channelCache;
decodeBuffer.decodeCachedValue(genericReply -> byte_data, 8,
serverCache -> genericReplyCharCache);
#ifdef TEST
*logofs << name() << ": Decoded value "
<< (unsigned int) genericReply -> byte_data
<< " as byte_data field.\n" << logofs_flush;
#endif
unsigned int value;
for (unsigned int i = 0; i < 12; i++)
{
decodeBuffer.decodeCachedValue(value, 16,
*serverCache -> genericReplyIntCache[i]);
genericReply -> short_data[i] = (unsigned short) value;
#ifdef TEST
*logofs << name() << ": Decoded value " << genericReply -> short_data[i]
<< " as short_data[" << i << "] field.\n" << logofs_flush;
#endif
}
}
|
