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
|
/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include <gflags/gflags.h>
#include <cstdlib>
#include <functional>
#include <iostream>
#include <string>
#include <unordered_map>
#include <vector>
#include "host/libs/config/cuttlefish_config.h"
#include "host/libs/wmediumd_controller/wmediumd_controller.h"
const std::string usageMessage =
"wmediumd control commandline utility\n\n"
" Usage: wmediumd_control [option] command [args...]\n\n"
" Commands:\n\n"
" set_snr mac1 mac2 snr\n"
" set SNR between two nodes. (0 <= snr <= 255)\n\n"
" reload_config [path]\n"
" force reload wmediumd configuration file\n\n"
" if path is not specified, reload current configuration file\n\n"
" start_pcap path\n"
" start packet capture and save capture result to file.\n"
" file format is pcap capture format.\n\n"
" stop_pcap\n"
" stop packet capture\n\n";
DEFINE_string(wmediumd_api_server, "",
"Unix socket path of wmediumd api server");
const int kMacAddrStringSize = 17;
bool ValidMacAddr(const std::string& macAddr) {
if (macAddr.size() != kMacAddrStringSize) {
return false;
}
if (macAddr[2] != ':' || macAddr[5] != ':' || macAddr[8] != ':' ||
macAddr[11] != ':' || macAddr[14] != ':') {
return false;
}
for (int i = 0; i < kMacAddrStringSize; ++i) {
if ((i - 2) % 3 == 0) continue;
char c = macAddr[i];
if (isupper(c)) {
c = tolower(c);
}
if ((c < '0' || c > '9') && (c < 'a' || c > 'f')) return false;
}
return true;
}
bool HandleSetSnrCommand(cuttlefish::WmediumdController& client,
const std::vector<std::string>& args) {
if (args.size() != 4) {
LOG(ERROR) << "error: set_snr must provide 3 options";
return false;
}
if (!ValidMacAddr(args[1])) {
LOG(ERROR) << "error: invalid mac address " << args[1];
return false;
}
if (!ValidMacAddr(args[2])) {
LOG(ERROR) << "error: invalid mac address " << args[2];
return false;
}
uint8_t snr = 0;
auto parseResult =
android::base::ParseUint<decltype(snr)>(args[3].c_str(), &snr);
if (!parseResult) {
if (errno == EINVAL) {
LOG(ERROR) << "error: cannot parse snr: " << args[3];
} else if (errno == ERANGE) {
LOG(ERROR) << "error: snr exceeded range: " << args[3];
}
return false;
}
if (!client.SetSnr(args[1], args[2], snr)) {
return false;
}
return true;
}
bool HandleReloadConfigCommand(cuttlefish::WmediumdController& client,
const std::vector<std::string>& args) {
if (args.size() > 2) {
LOG(ERROR) << "error: reload_config must provide 0 or 1 option";
return false;
}
if (args.size() == 2) {
return client.ReloadConfig(args[1]);
} else {
return client.ReloadCurrentConfig();
}
}
bool HandleStartPcapCommand(cuttlefish::WmediumdController& client,
const std::vector<std::string>& args) {
if (args.size() != 2) {
LOG(ERROR) << "error: you must provide only 1 option(path)";
return false;
}
return client.StartPcap(args[1]);
}
bool HandleStopPcapCommand(cuttlefish::WmediumdController& client,
const std::vector<std::string>& args) {
if (args.size() != 1) {
LOG(ERROR) << "error: you must not provide option";
return false;
}
return client.StopPcap();
}
int main(int argc, char** argv) {
gflags::SetUsageMessage(usageMessage);
gflags::ParseCommandLineFlags(&argc, &argv, true);
std::vector<std::string> args;
for (int i = 1; i < argc; ++i) {
args.push_back(argv[i]);
}
if (args.size() == 0) {
LOG(ERROR) << "error: you must provide at least 1 argument";
gflags::ShowUsageWithFlags(argv[0]);
return -1;
}
std::string wmediumdApiServerPath(FLAGS_wmediumd_api_server);
if (wmediumdApiServerPath == "") {
const auto cuttlefishConfig = cuttlefish::CuttlefishConfig::Get();
if (!cuttlefishConfig) {
LOG(ERROR) << "error: cannot get global cuttlefish config";
return -1;
}
wmediumdApiServerPath = cuttlefishConfig->wmediumd_api_server_socket();
}
auto client = cuttlefish::WmediumdController::New(wmediumdApiServerPath);
if (!client) {
LOG(ERROR) << "error: cannot connect to " << wmediumdApiServerPath;
return -1;
}
auto commandMap =
std::unordered_map<std::string,
std::function<bool(cuttlefish::WmediumdController&,
const std::vector<std::string>&)>>{{
{"set_snr", HandleSetSnrCommand},
{"reload_config", HandleReloadConfigCommand},
{"start_pcap", HandleStartPcapCommand},
{"stop_pcap", HandleStopPcapCommand},
}};
if (commandMap.find(args[0]) == std::end(commandMap)) {
LOG(ERROR) << "error: command " << args[0] << " does not exist";
gflags::ShowUsageWithFlags(argv[0]);
return -1;
}
if (!commandMap[args[0]](*client, args)) {
LOG(ERROR) << "error: failed to execute command " << args[0];
return -1;
}
return 0;
}
|
