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
|
/*
Copyright (c) 2018, MIPI Alliance, Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Contributors:
* Norbert Schulz (Intel Corporation) - Initial API and implementation
*/
#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <memory>
#include "mipi_syst_decode.h"
#include "mipi_syst_guid.h"
// print program usage banner
//
static void usage(const std::string& details)
{
std::cerr << "usage: systprint [-p] [-c <collateralXML>...] [-g short-message-guid] [-o output] [inputfile(s)...]" << std::endl;
std::cerr << " -p / --payload_only only print payload (default is CSV)" << std::endl;
std::cerr << " -c / --colateral filename load given SyS-T collateral XML" << std::endl;
std::cerr << " -g / --short_guid guid guid value for short messages" << std::endl;
std::cerr << " -o / --output file output file name (default stdout)" << std::endl;
std::cerr << " inputfile(s)... file(s) with example library platform output or '-' for stdin" << std::endl;
std::cerr << std::endl;
if (!details.empty()) {
std::cerr << details << std::endl;
}
exit(1);
}
// ASCII char -> HEX nibble value, or 0xFF if invalid
//
static const uint8_t hexCharVal[] =
{
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 10, 11, 12, 13, 14, 15, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 10, 11, 12, 13, 14, 15, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};
// Convert ASCII hex string into byte array, fail if string is not a
// sequence of 0..(2*n) hex characters
//
static bool hex2bin(const std::string& hexStr, std::vector<uint8_t>& dest)
{
size_t nibbles(hexStr.size());
if (nibbles % 2) { // 2 chars needed for 1 value
return false;
}
dest.clear();
for(auto hexChar(hexStr.c_str()); nibbles ; nibbles -= 2)
{
auto high(hexCharVal[(uint8_t)*hexChar++]);
auto low(hexCharVal[(uint8_t)*hexChar++]);
if (high == 0xFF || low == 0xFF) {
return false;
}
dest.push_back((high << 4) | low);
}
return true;
}
// Scan input file that is assumed to come from the SyS-T library example platform.
// Extract the raw event HEX data lines that look like this
//
// SYS-T RAW DATA: 4202000B0...
//
// Then parse the hex portion of the line and try to decode it as a SyS-T message.
//
static void readAndPrint(std::istream& is, std::ostream& os,
bool payload_only,
const mipi::syst::decode_context * ctx,
const mipi::syst::decoder& decoder)
{
static const std::string pattern("SYS-T RAW DATA: ");
std::string line;
while (getline(is, line)) {
if (line.compare(0, pattern.size(), pattern)) {
continue; // not a raw dump of a SyS-T message
}
// sanitize line endings
//
while (line.size() &&
(line[line.size()-1] == '\r' ||
line[line.size()-1] == '\n'))
{
line.erase(line.size()-1);
}
std::vector<uint8_t> bytes;
if (!hex2bin(line.substr(pattern.size()), bytes)) {
continue;
}
mipi::syst::message msg;
decoder.decode(msg, bytes, ctx);
if (payload_only) {
os << msg.getPayload() << std::endl;
} else {
os << msg;
}
}
}
/// Simple GUID context wrapper
//
// This class implements a trivial decode context provider by just
// wrapping a guid set from the command line. A real implementation would
// encapsulate transport information here to build client identifying
// information. @see mipi::syst::decode_context
//
class short_guid_context : public mipi::syst::decode_context {
public:
short_guid_context(const mipi::syst::guid& g) : m_guid(g), m_fakeTS(0) {}
const mipi::syst::guid& getGuid() const {
return m_guid;
}
uint64_t getTS() const {
return m_fakeTS++; // replace with transport TS
}
private:
mipi::syst::guid m_guid;
mutable uint64_t m_fakeTS;
};
int main(int argc, char ** argv)
{
std::vector<std::string> inputs;
std::string output;
bool payload_only(false);
std::shared_ptr<short_guid_context> short_ctx(nullptr); // guid to use for short messages
mipi::syst::decoder decoder;
// parse & check arguments
//
for (auto i = 1; i < argc; ++i) {
const std::string arg(argv[i]);
if (arg == "-c" || arg == "--collateral") {
if (++i >= argc) {
usage("missing collateral file argument");
}
try {
decoder.loadCollateral(argv[i]);
}
catch (std::exception& e) {
std::cerr << "error loading '" << argv[i] << "': " << e.what();
exit(1);
}
} else if (arg == "-p" || arg == "--payload_only") {
payload_only = true;
} else if (arg == "-g" || arg == "--short_guid") {
if (++i >= argc) {
usage("missing guid argument for -g/--short_guid option");
}
try {
short_ctx = std::make_shared<short_guid_context>(
mipi::syst::guid(argv[i]));
} catch (std::exception& e) {
std::cerr << e.what();
exit(1);
}
} else if (arg == "-o" || arg == "--output") {
if (++i >= argc) {
usage("missing filename argument for -o/--output option");
}
output = argv[i];
} else if (arg == "-") { //stdin
inputs.push_back(arg);
} else if (arg[0] == '-') {
usage(std::string("unknown argument : ") + arg);
} else {
inputs.push_back(arg);
}
}
if (inputs.empty()) {
usage("no input provided");
}
// set output destination (default stdout)
//
std::ostream * os(&std::cout);
std::ofstream ofs;
if (!output.empty()) {
ofs.open(output.c_str(), std::ofstream::out);
if (!ofs.is_open()) {
std::cerr << "unable to open output file : " << output << std::endl;
exit(1);
}
os = &ofs;
}
if (!payload_only) {
*os << mipi::syst::message::csvHeaderString << std::endl;
}
for (auto input : inputs) {
if (input == "-") {
readAndPrint(std::cin, *os, payload_only, short_ctx.get(), decoder);
} else {
std::ifstream ifs(input);
if (!ifs.is_open()) {
std::cerr << "unable to open input file : " << input << std::endl;
exit(1);
}
readAndPrint(ifs, *os, payload_only, short_ctx.get(), decoder);
ifs.close();
}
}
if (ofs.is_open()) {
ofs.close();
}
return 0;
}
|
