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
|
/*
* Copyright (C) 2008 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 <string.h>
#include <errno.h>
#define LOG_TAG "WifiController"
#include <cutils/log.h>
#include "Supplicant.h"
#include "WifiController.h"
#include "WifiScanner.h"
#include "NetworkManager.h"
#include "ErrorCode.h";
WifiController::WifiController(char *modpath, char *modname, char *modargs) :
Controller("WIFI") {
strncpy(mModulePath, modpath, sizeof(mModulePath));
strncpy(mModuleName, modname, sizeof(mModuleName));
strncpy(mModuleArgs, modargs, sizeof(mModuleArgs));
mSupplicant = new Supplicant();
mScanner = new WifiScanner(mSupplicant, 10);
mCurrentScanMode = 0;
}
int WifiController::start() {
return 0;
}
int WifiController::stop() {
errno = ENOSYS;
return -1;
}
int WifiController::enable() {
if (!isPoweredUp()) {
sendStatusBroadcast("POWERING_UP");
if (powerUp()) {
LOGE("Powerup failed (%s)", strerror(errno));
return -1;
}
}
if (mModuleName[0] != '\0' && !isKernelModuleLoaded(mModuleName)) {
sendStatusBroadcast("LOADING_DRIVER");
if (loadKernelModule(mModulePath, mModuleArgs)) {
LOGE("Kernel module load failed (%s)", strerror(errno));
goto out_powerdown;
}
}
if (!isFirmwareLoaded()) {
sendStatusBroadcast("LOADING_FIRMWARE");
if (loadFirmware()) {
LOGE("Firmware load failed (%s)", strerror(errno));
goto out_powerdown;
}
}
if (!mSupplicant->isStarted()) {
sendStatusBroadcast("STARTING_SUPPLICANT");
if (mSupplicant->start()) {
LOGE("Supplicant start failed (%s)", strerror(errno));
goto out_unloadmodule;
}
}
return 0;
out_unloadmodule:
if (mModuleName[0] != '\0' && !isKernelModuleLoaded(mModuleName)) {
if (unloadKernelModule(mModuleName)) {
LOGE("Unable to unload module after failure!");
}
}
out_powerdown:
if (powerDown()) {
LOGE("Unable to powerdown after failure!");
}
return -1;
}
void WifiController::sendStatusBroadcast(char *msg) {
NetworkManager::Instance()->
getBroadcaster()->
sendBroadcast(ErrorCode::UnsolicitedInformational, msg, false);
}
int WifiController::disable() {
if (mSupplicant->isStarted()) {
sendStatusBroadcast("STOPPING_SUPPLICANT");
if (mSupplicant->stop()) {
LOGE("Supplicant stop failed (%s)", strerror(errno));
return -1;
}
} else
LOGW("disable(): Supplicant not running?");
if (mModuleName[0] != '\0' && isKernelModuleLoaded(mModuleName)) {
sendStatusBroadcast("UNLOADING_DRIVER");
if (unloadKernelModule(mModuleName)) {
LOGE("Unable to unload module (%s)", strerror(errno));
return -1;
}
}
if (isPoweredUp()) {
sendStatusBroadcast("POWERING_DOWN");
if (powerDown()) {
LOGE("Powerdown failed (%s)", strerror(errno));
return -1;
}
}
return 0;
}
int WifiController::loadFirmware() {
return 0;
}
int WifiController::setScanMode(uint32_t mode) {
int rc = 0;
if (mCurrentScanMode == mode)
return 0;
if (!(mode & SCAN_ENABLE_MASK)) {
if (mCurrentScanMode & SCAN_REPEAT_MASK)
mScanner->stopPeriodicScan();
} else if (mode & SCAN_REPEAT_MASK)
rc = mScanner->startPeriodicScan(mode & SCAN_ACTIVE_MASK);
else
rc = mSupplicant->triggerScan(mode & SCAN_ACTIVE_MASK);
return rc;
}
ScanResultCollection *WifiController::createScanResults() {
return mSupplicant->createLatestScanResults();
}
|
