| Methods Summary |
|---|
| public boolean | acquireWifiLock(android.os.IBinder binder, int lockMode, java.lang.String tag)
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null);
if (lockMode != WifiManager.WIFI_MODE_FULL && lockMode != WifiManager.WIFI_MODE_SCAN_ONLY) {
return false;
}
WifiLock wifiLock = new WifiLock(lockMode, tag, binder);
synchronized (mLocks) {
return acquireWifiLockLocked(wifiLock);
}
|
| private boolean | acquireWifiLockLocked(com.android.server.WifiService$WifiLock wifiLock)
mLocks.addLock(wifiLock);
int uid = Binder.getCallingUid();
long ident = Binder.clearCallingIdentity();
try {
switch(wifiLock.mLockMode) {
case WifiManager.WIFI_MODE_FULL:
++mFullLocksAcquired;
mBatteryStats.noteFullWifiLockAcquired(uid);
break;
case WifiManager.WIFI_MODE_SCAN_ONLY:
++mScanLocksAcquired;
mBatteryStats.noteScanWifiLockAcquired(uid);
break;
}
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(ident);
}
updateWifiState();
return true;
|
| private synchronized void | addOrUpdateHiddenNetwork(int netId, boolean present)Updates the netId network presence status if netId is an existing
hidden network. If the network does not exist, adds the network.
if (0 <= netId) {
// If we are adding a new entry or modifying an existing one
Boolean isPresent = mIsHiddenNetworkPresent.get(netId);
if (isPresent == null || isPresent != present) {
if (present) {
incrementHiddentNetworkPresentCounter();
} else {
// If we add a new hidden network, no need to change
// the counter (it must be 0)
if (isPresent != null) {
decrementHiddentNetworkPresentCounter();
}
}
mIsHiddenNetworkPresent.put(netId, present);
}
} else {
Log.e(TAG, "addOrUpdateHiddenNetwork(): Invalid (negative) network id!");
}
|
| public synchronized int | addOrUpdateNetwork(android.net.wifi.WifiConfiguration config)see {@link android.net.wifi.WifiManager#addOrUpdateNetwork(WifiConfiguration)}
enforceChangePermission();
/*
* If the supplied networkId is -1, we create a new empty
* network configuration. Otherwise, the networkId should
* refer to an existing configuration.
*/
int netId = config.networkId;
boolean newNetwork = netId == -1;
boolean doReconfig;
int currentPriority;
// networkId of -1 means we want to create a new network
if (newNetwork) {
netId = WifiNative.addNetworkCommand();
if (netId < 0) {
if (DBG) {
Log.d(TAG, "Failed to add a network!");
}
return -1;
}
doReconfig = true;
} else {
String priorityVal = WifiNative.getNetworkVariableCommand(netId, WifiConfiguration.priorityVarName);
currentPriority = -1;
if (!TextUtils.isEmpty(priorityVal)) {
try {
currentPriority = Integer.parseInt(priorityVal);
} catch (NumberFormatException ignore) {
}
}
doReconfig = currentPriority != config.priority;
}
mNeedReconfig = mNeedReconfig || doReconfig;
/*
* If we have hidden networks, we may have to change the scan mode
*/
if (config.hiddenSSID) {
// Mark the network as present unless it is disabled
addOrUpdateHiddenNetwork(
netId, config.status != WifiConfiguration.Status.DISABLED);
}
setVariables: {
/*
* Note that if a networkId for a non-existent network
* was supplied, then the first setNetworkVariableCommand()
* will fail, so we don't bother to make a separate check
* for the validity of the ID up front.
*/
if (config.SSID != null &&
!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.ssidVarName,
config.SSID)) {
if (DBG) {
Log.d(TAG, "failed to set SSID: "+config.SSID);
}
break setVariables;
}
if (config.BSSID != null &&
!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.bssidVarName,
config.BSSID)) {
if (DBG) {
Log.d(TAG, "failed to set BSSID: "+config.BSSID);
}
break setVariables;
}
String allowedKeyManagementString =
makeString(config.allowedKeyManagement, WifiConfiguration.KeyMgmt.strings);
if (config.allowedKeyManagement.cardinality() != 0 &&
!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.KeyMgmt.varName,
allowedKeyManagementString)) {
if (DBG) {
Log.d(TAG, "failed to set key_mgmt: "+
allowedKeyManagementString);
}
break setVariables;
}
String allowedProtocolsString =
makeString(config.allowedProtocols, WifiConfiguration.Protocol.strings);
if (config.allowedProtocols.cardinality() != 0 &&
!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.Protocol.varName,
allowedProtocolsString)) {
if (DBG) {
Log.d(TAG, "failed to set proto: "+
allowedProtocolsString);
}
break setVariables;
}
String allowedAuthAlgorithmsString =
makeString(config.allowedAuthAlgorithms, WifiConfiguration.AuthAlgorithm.strings);
if (config.allowedAuthAlgorithms.cardinality() != 0 &&
!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.AuthAlgorithm.varName,
allowedAuthAlgorithmsString)) {
if (DBG) {
Log.d(TAG, "failed to set auth_alg: "+
allowedAuthAlgorithmsString);
}
break setVariables;
}
String allowedPairwiseCiphersString =
makeString(config.allowedPairwiseCiphers, WifiConfiguration.PairwiseCipher.strings);
if (config.allowedPairwiseCiphers.cardinality() != 0 &&
!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.PairwiseCipher.varName,
allowedPairwiseCiphersString)) {
if (DBG) {
Log.d(TAG, "failed to set pairwise: "+
allowedPairwiseCiphersString);
}
break setVariables;
}
String allowedGroupCiphersString =
makeString(config.allowedGroupCiphers, WifiConfiguration.GroupCipher.strings);
if (config.allowedGroupCiphers.cardinality() != 0 &&
!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.GroupCipher.varName,
allowedGroupCiphersString)) {
if (DBG) {
Log.d(TAG, "failed to set group: "+
allowedGroupCiphersString);
}
break setVariables;
}
// Prevent client screw-up by passing in a WifiConfiguration we gave it
// by preventing "*" as a key.
if (config.preSharedKey != null && !config.preSharedKey.equals("*") &&
!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.pskVarName,
config.preSharedKey)) {
if (DBG) {
Log.d(TAG, "failed to set psk: "+config.preSharedKey);
}
break setVariables;
}
boolean hasSetKey = false;
if (config.wepKeys != null) {
for (int i = 0; i < config.wepKeys.length; i++) {
// Prevent client screw-up by passing in a WifiConfiguration we gave it
// by preventing "*" as a key.
if (config.wepKeys[i] != null && !config.wepKeys[i].equals("*")) {
if (!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.wepKeyVarNames[i],
config.wepKeys[i])) {
if (DBG) {
Log.d(TAG,
"failed to set wep_key"+i+": " +
config.wepKeys[i]);
}
break setVariables;
}
hasSetKey = true;
}
}
}
if (hasSetKey) {
if (!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.wepTxKeyIdxVarName,
Integer.toString(config.wepTxKeyIndex))) {
if (DBG) {
Log.d(TAG,
"failed to set wep_tx_keyidx: "+
config.wepTxKeyIndex);
}
break setVariables;
}
}
if (!WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.priorityVarName,
Integer.toString(config.priority))) {
if (DBG) {
Log.d(TAG, config.SSID + ": failed to set priority: "
+config.priority);
}
break setVariables;
}
if (config.hiddenSSID && !WifiNative.setNetworkVariableCommand(
netId,
WifiConfiguration.hiddenSSIDVarName,
Integer.toString(config.hiddenSSID ? 1 : 0))) {
if (DBG) {
Log.d(TAG, config.SSID + ": failed to set hiddenSSID: "+
config.hiddenSSID);
}
break setVariables;
}
return netId;
}
/*
* For an update, if one of the setNetworkVariable operations fails,
* we might want to roll back all the changes already made. But the
* chances are that if anything is going to go wrong, it'll happen
* the first time we try to set one of the variables.
*/
if (newNetwork) {
removeNetwork(netId);
if (DBG) {
Log.d(TAG,
"Failed to set a network variable, removed network: "
+ netId);
}
}
return -1;
|
| private void | decrementHiddentNetworkPresentCounter()Decrements the present (enabled) hidden networks counter. If the
counter goes from 1 to 0, changes the scan mode back to passive.
if (0 < mNumHiddenNetworkPresent) {
--mNumHiddenNetworkPresent;
if (0 == mNumHiddenNetworkPresent) {
// Switch the scan mode to "passive"
mWifiStateTracker.setScanMode(false, SET_DUE_TO_A_HIDDEN_NETWORK);
}
} else {
Log.e(TAG, "Hidden-network counter invariant violation!");
}
|
| public boolean | disableNetwork(int netId)See {@link android.net.wifi.WifiManager#disableNetwork(int)}
enforceChangePermission();
/*
* If we have hidden networks, we may have to change the scan mode
*/
updateNetworkIfHidden(netId, false);
synchronized (mWifiStateTracker) {
return WifiNative.disableNetworkCommand(netId);
}
|
| public boolean | disconnect()see {@link android.net.wifi.WifiManager#disconnect()}
enforceChangePermission();
synchronized (mWifiStateTracker) {
return WifiNative.disconnectCommand();
}
|
| protected void | dump(java.io.FileDescriptor fd, java.io.PrintWriter pw, java.lang.String[] args)
if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump WifiService from from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid());
return;
}
pw.println("Wi-Fi is " + stateName(mWifiState));
pw.println("Stay-awake conditions: " +
Settings.System.getInt(mContext.getContentResolver(),
Settings.System.STAY_ON_WHILE_PLUGGED_IN, 0));
pw.println();
pw.println("Internal state:");
pw.println(mWifiStateTracker);
pw.println();
pw.println("Latest scan results:");
List<ScanResult> scanResults = mWifiStateTracker.getScanResultsList();
if (scanResults != null && scanResults.size() != 0) {
pw.println(" BSSID Frequency RSSI Flags SSID");
for (ScanResult r : scanResults) {
pw.printf(" %17s %9d %5d %-16s %s%n",
r.BSSID,
r.frequency,
r.level,
r.capabilities,
r.SSID == null ? "" : r.SSID);
}
}
pw.println();
pw.println("Locks acquired: " + mFullLocksAcquired + " full, " +
mScanLocksAcquired + " scan");
pw.println("Locks released: " + mFullLocksReleased + " full, " +
mScanLocksReleased + " scan");
pw.println();
pw.println("Locks held:");
mLocks.dump(pw);
|
| public boolean | enableNetwork(int netId, boolean disableOthers)See {@link android.net.wifi.WifiManager#enableNetwork(int, boolean)}
enforceChangePermission();
/*
* If we have hidden networks, we may have to change the scan mode
*/
synchronized(this) {
if (disableOthers) {
markAllHiddenNetworksButOneAsNotPresent(netId);
}
updateNetworkIfHidden(netId, true);
}
synchronized (mWifiStateTracker) {
return WifiNative.enableNetworkCommand(netId, disableOthers);
}
|
| private void | enforceAccessPermission()
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.ACCESS_WIFI_STATE,
"WifiService");
|
| private void | enforceChangePermission()
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.CHANGE_WIFI_STATE,
"WifiService");
|
| public java.util.List | getConfiguredNetworks()see {@link android.net.wifi.WifiManager#getConfiguredNetworks()}
enforceAccessPermission();
String listStr;
/*
* We don't cache the list, because we want to allow
* for the possibility that the configuration file
* has been modified through some external means,
* such as the wpa_cli command line program.
*/
synchronized (mWifiStateTracker) {
listStr = WifiNative.listNetworksCommand();
}
List<WifiConfiguration> networks =
new ArrayList<WifiConfiguration>();
if (listStr == null)
return networks;
String[] lines = listStr.split("\n");
// Skip the first line, which is a header
for (int i = 1; i < lines.length; i++) {
String[] result = lines[i].split("\t");
// network-id | ssid | bssid | flags
WifiConfiguration config = new WifiConfiguration();
try {
config.networkId = Integer.parseInt(result[0]);
} catch(NumberFormatException e) {
continue;
}
if (result.length > 3) {
if (result[3].indexOf("[CURRENT]") != -1)
config.status = WifiConfiguration.Status.CURRENT;
else if (result[3].indexOf("[DISABLED]") != -1)
config.status = WifiConfiguration.Status.DISABLED;
else
config.status = WifiConfiguration.Status.ENABLED;
} else
config.status = WifiConfiguration.Status.ENABLED;
synchronized (mWifiStateTracker) {
readNetworkVariables(config);
}
networks.add(config);
}
return networks;
|
| public android.net.wifi.WifiInfo | getConnectionInfo()See {@link android.net.wifi.WifiManager#getConnectionInfo()}
enforceAccessPermission();
/*
* Make sure we have the latest information, by sending
* a status request to the supplicant.
*/
return mWifiStateTracker.requestConnectionInfo();
|
| public android.net.DhcpInfo | getDhcpInfo()Return the DHCP-assigned addresses from the last successful DHCP request,
if any.
enforceAccessPermission();
return mWifiStateTracker.getDhcpInfo();
|
| android.net.NetworkStateTracker | getNetworkStateTracker()
return mWifiStateTracker;
|
| public int | getNumAllowedChannels()Return the number of frequency channels that are allowed
to be used in the current regulatory domain.
int numChannels;
enforceAccessPermission();
synchronized (mWifiStateTracker) {
/*
* If we can't get the value from the driver (e.g., because
* Wi-Fi is not currently enabled), get the value from
* Settings.
*/
numChannels = WifiNative.getNumAllowedChannelsCommand();
if (numChannels < 0) {
numChannels = Settings.Secure.getInt(mContext.getContentResolver(),
Settings.Secure.WIFI_NUM_ALLOWED_CHANNELS,
-1);
}
}
return numChannels;
|
| private boolean | getPersistedWifiEnabled()
final ContentResolver cr = mContext.getContentResolver();
try {
return Settings.Secure.getInt(cr, Settings.Secure.WIFI_ON) == 1;
} catch (Settings.SettingNotFoundException e) {
Settings.Secure.putInt(cr, Settings.Secure.WIFI_ON, 0);
return false;
}
|
| public java.util.List | getScanResults()Return the results of the most recent access point scan, in the form of
a list of {@link ScanResult} objects.
enforceAccessPermission();
String reply;
synchronized (mWifiStateTracker) {
reply = WifiNative.scanResultsCommand();
}
if (reply == null) {
return null;
}
List<ScanResult> scanList = new ArrayList<ScanResult>();
int lineCount = 0;
int replyLen = reply.length();
// Parse the result string, keeping in mind that the last line does
// not end with a newline.
for (int lineBeg = 0, lineEnd = 0; lineEnd <= replyLen; ++lineEnd) {
if (lineEnd == replyLen || reply.charAt(lineEnd) == '\n") {
++lineCount;
/*
* Skip the first line, which is a header
*/
if (lineCount == 1) {
lineBeg = lineEnd + 1;
continue;
}
int lineLen = lineEnd - lineBeg;
if (0 < lineLen && lineLen <= SCAN_RESULT_BUFFER_SIZE) {
int scanResultLevel = 0;
/*
* At most one thread should have access to the buffer at a time!
*/
synchronized(mScanResultBuffer) {
boolean parsingScanResultLevel = false;
for (int i = lineBeg; i < lineEnd; ++i) {
char ch = reply.charAt(i);
/*
* Assume that the signal level starts with a '-'
*/
if (ch == '-") {
/*
* Skip whatever instances of '-' we may have
* after we parse the signal level
*/
parsingScanResultLevel = (scanResultLevel == 0);
} else if (parsingScanResultLevel) {
int digit = Character.digit(ch, 10);
if (0 <= digit) {
scanResultLevel =
10 * scanResultLevel + digit;
/*
* Replace the signal level number in
* the string with 0's for caching
*/
ch = '0";
} else {
/*
* Reset the flag if we meet a non-digit
* character
*/
parsingScanResultLevel = false;
}
}
mScanResultBuffer[i - lineBeg] = ch;
}
if (scanResultLevel != 0) {
ScanResult scanResult = parseScanResult(
new String(mScanResultBuffer, 0, lineLen));
if (scanResult != null) {
scanResult.level = -scanResultLevel;
scanList.add(scanResult);
}
} else if (DBG) {
Log.w(TAG,
"ScanResult.level=0: misformatted scan result?");
}
}
} else if (0 < lineLen) {
if (DBG) {
Log.w(TAG, "Scan result line is too long: " +
(lineEnd - lineBeg) + ", skipping the line!");
}
}
lineBeg = lineEnd + 1;
}
}
mWifiStateTracker.setScanResultsList(scanList);
return scanList;
|
| public int[] | getValidChannelCounts()Return the list of valid values for the number of allowed radio channels
for various regulatory domains.
enforceAccessPermission();
return sValidRegulatoryChannelCounts;
|
| public int | getWifiEnabledState()see {@link WifiManager#getWifiState()}
enforceAccessPermission();
return mWifiState;
|
| private void | incrementHiddentNetworkPresentCounter()Increments the present (enabled) hidden networks counter. If the
counter value goes from 0 to 1, changes the scan mode to active.
++mNumHiddenNetworkPresent;
if (1 == mNumHiddenNetworkPresent) {
// Switch the scan mode to "active"
mWifiStateTracker.setScanMode(true, SET_DUE_TO_A_HIDDEN_NETWORK);
}
|
| private synchronized void | initializeHiddenNetworksState()Initializes the hidden networks state. Must be called when we
enable Wi-Fi.
// First, reset the state
resetHiddenNetworksState();
// ... then add networks that are marked as hidden
List<WifiConfiguration> networks = getConfiguredNetworks();
if (!networks.isEmpty()) {
for (WifiConfiguration config : networks) {
if (config != null && config.hiddenSSID) {
addOrUpdateHiddenNetwork(
config.networkId,
config.status != WifiConfiguration.Status.DISABLED);
}
}
}
|
| private boolean | isAirplaneModeOn()Returns true if Wi-Fi is sensitive to airplane mode, and airplane mode is
currently on.
return isAirplaneSensitive() && Settings.System.getInt(mContext.getContentResolver(),
Settings.System.AIRPLANE_MODE_ON, 0) == 1;
|
| private boolean | isAirplaneSensitive()
String airplaneModeRadios = Settings.System.getString(mContext.getContentResolver(),
Settings.System.AIRPLANE_MODE_RADIOS);
return airplaneModeRadios == null
|| airplaneModeRadios.contains(Settings.System.RADIO_WIFI);
|
| private synchronized boolean | isHiddenNetwork(int netId)Returns true if netId is an existing hidden network.
return mIsHiddenNetworkPresent.containsKey(netId);
|
| private static int | lookupString(java.lang.String string, java.lang.String[] strings)
int size = strings.length;
string = string.replace('-", '_");
for (int i = 0; i < size; i++)
if (string.equals(strings[i]))
return i;
if (DBG) {
// if we ever get here, we should probably add the
// value to WifiConfiguration to reflect that it's
// supported by the WPA supplicant
Log.w(TAG, "Failed to look-up a string: " + string);
}
return -1;
|
| private static java.lang.String | makeString(java.util.BitSet set, java.lang.String[] strings)
StringBuffer buf = new StringBuffer();
int nextSetBit = -1;
/* Make sure all set bits are in [0, strings.length) to avoid
* going out of bounds on strings. (Shouldn't happen, but...) */
set = set.get(0, strings.length);
while ((nextSetBit = set.nextSetBit(nextSetBit + 1)) != -1) {
buf.append(strings[nextSetBit].replace('_", '-")).append(' ");
}
// remove trailing space
if (set.cardinality() > 0) {
buf.setLength(buf.length() - 1);
}
return buf.toString();
|
| private synchronized void | markAllHiddenNetworksButOneAsNotPresent(int netId)Marks all but netId network as not present.
for (Map.Entry<Integer, Boolean> entry : mIsHiddenNetworkPresent.entrySet()) {
if (entry != null) {
Integer networkId = entry.getKey();
if (networkId != netId) {
updateNetworkIfHidden(
networkId, false);
}
}
}
|
| android.net.wifi.WifiConfiguration | parseScanFlags(java.lang.String flags)Parse the "flags" field passed back in a scan result by wpa_supplicant,
and construct a {@code WifiConfiguration} that describes the encryption,
key management, and authenticaion capabilities of the access point.
WifiConfiguration config = new WifiConfiguration();
if (flags.length() == 0) {
config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
}
// ... to be implemented
return config;
|
| private android.net.wifi.ScanResult | parseScanResult(java.lang.String line)Parse the scan result line passed to us by wpa_supplicant (helper).
ScanResult scanResult = null;
if (line != null) {
/*
* Cache implementation (LinkedHashMap) is not synchronized, thus,
* must synchronized here!
*/
synchronized (mScanResultCache) {
scanResult = mScanResultCache.get(line);
if (scanResult == null) {
String[] result = scanResultPattern.split(line);
if (3 <= result.length && result.length <= 5) {
// bssid | frequency | level | flags | ssid
int frequency;
int level;
try {
frequency = Integer.parseInt(result[1]);
level = Integer.parseInt(result[2]);
} catch (NumberFormatException e) {
frequency = 0;
level = 0;
}
/*
* The formatting of the results returned by
* wpa_supplicant is intended to make the fields
* line up nicely when printed,
* not to make them easy to parse. So we have to
* apply some heuristics to figure out which field
* is the SSID and which field is the flags.
*/
String ssid;
String flags;
if (result.length == 4) {
if (result[3].charAt(0) == '[") {
flags = result[3];
ssid = "";
} else {
flags = "";
ssid = result[3];
}
} else if (result.length == 5) {
flags = result[3];
ssid = result[4];
} else {
// Here, we must have 3 fields: no flags and ssid
// set
flags = "";
ssid = "";
}
// Do not add scan results that have no SSID set
if (0 < ssid.trim().length()) {
scanResult =
new ScanResult(
ssid, result[0], flags, level, frequency);
mScanResultCache.put(line, scanResult);
}
} else {
Log.w(TAG, "Misformatted scan result text with " +
result.length + " fields: " + line);
}
}
}
}
return scanResult;
|
| private void | persistWifiEnabled(boolean enabled)
final ContentResolver cr = mContext.getContentResolver();
Settings.Secure.putInt(cr, Settings.Secure.WIFI_ON, enabled ? 1 : 0);
|
| public boolean | pingSupplicant()see {@link android.net.wifi.WifiManager#pingSupplicant()}
enforceChangePermission();
synchronized (mWifiStateTracker) {
return WifiNative.pingCommand();
}
|
| private static void | readNetworkVariables(android.net.wifi.WifiConfiguration config)Read the variables from the supplicant daemon that are needed to
fill in the WifiConfiguration object.
The caller must hold the synchronization monitor.
int netId = config.networkId;
if (netId < 0)
return;
/*
* TODO: maybe should have a native method that takes an array of
* variable names and returns an array of values. But we'd still
* be doing a round trip to the supplicant daemon for each variable.
*/
String value;
value = WifiNative.getNetworkVariableCommand(netId, WifiConfiguration.ssidVarName);
if (!TextUtils.isEmpty(value)) {
config.SSID = value;
} else {
config.SSID = null;
}
value = WifiNative.getNetworkVariableCommand(netId, WifiConfiguration.bssidVarName);
if (!TextUtils.isEmpty(value)) {
config.BSSID = value;
} else {
config.BSSID = null;
}
value = WifiNative.getNetworkVariableCommand(netId, WifiConfiguration.priorityVarName);
config.priority = -1;
if (!TextUtils.isEmpty(value)) {
try {
config.priority = Integer.parseInt(value);
} catch (NumberFormatException ignore) {
}
}
value = WifiNative.getNetworkVariableCommand(netId, WifiConfiguration.hiddenSSIDVarName);
config.hiddenSSID = false;
if (!TextUtils.isEmpty(value)) {
try {
config.hiddenSSID = Integer.parseInt(value) != 0;
} catch (NumberFormatException ignore) {
}
}
value = WifiNative.getNetworkVariableCommand(netId, WifiConfiguration.wepTxKeyIdxVarName);
config.wepTxKeyIndex = -1;
if (!TextUtils.isEmpty(value)) {
try {
config.wepTxKeyIndex = Integer.parseInt(value);
} catch (NumberFormatException ignore) {
}
}
/*
* Get up to 4 WEP keys. Note that the actual keys are not passed back,
* just a "*" if the key is set, or the null string otherwise.
*/
for (int i = 0; i < 4; i++) {
value = WifiNative.getNetworkVariableCommand(netId, WifiConfiguration.wepKeyVarNames[i]);
if (!TextUtils.isEmpty(value)) {
config.wepKeys[i] = value;
} else {
config.wepKeys[i] = null;
}
}
/*
* Get the private shared key. Note that the actual keys are not passed back,
* just a "*" if the key is set, or the null string otherwise.
*/
value = WifiNative.getNetworkVariableCommand(netId, WifiConfiguration.pskVarName);
if (!TextUtils.isEmpty(value)) {
config.preSharedKey = value;
} else {
config.preSharedKey = null;
}
value = WifiNative.getNetworkVariableCommand(config.networkId,
WifiConfiguration.Protocol.varName);
if (!TextUtils.isEmpty(value)) {
String vals[] = value.split(" ");
for (String val : vals) {
int index =
lookupString(val, WifiConfiguration.Protocol.strings);
if (0 <= index) {
config.allowedProtocols.set(index);
}
}
}
value = WifiNative.getNetworkVariableCommand(config.networkId,
WifiConfiguration.KeyMgmt.varName);
if (!TextUtils.isEmpty(value)) {
String vals[] = value.split(" ");
for (String val : vals) {
int index =
lookupString(val, WifiConfiguration.KeyMgmt.strings);
if (0 <= index) {
config.allowedKeyManagement.set(index);
}
}
}
value = WifiNative.getNetworkVariableCommand(config.networkId,
WifiConfiguration.AuthAlgorithm.varName);
if (!TextUtils.isEmpty(value)) {
String vals[] = value.split(" ");
for (String val : vals) {
int index =
lookupString(val, WifiConfiguration.AuthAlgorithm.strings);
if (0 <= index) {
config.allowedAuthAlgorithms.set(index);
}
}
}
value = WifiNative.getNetworkVariableCommand(config.networkId,
WifiConfiguration.PairwiseCipher.varName);
if (!TextUtils.isEmpty(value)) {
String vals[] = value.split(" ");
for (String val : vals) {
int index =
lookupString(val, WifiConfiguration.PairwiseCipher.strings);
if (0 <= index) {
config.allowedPairwiseCiphers.set(index);
}
}
}
value = WifiNative.getNetworkVariableCommand(config.networkId,
WifiConfiguration.GroupCipher.varName);
if (!TextUtils.isEmpty(value)) {
String vals[] = value.split(" ");
for (String val : vals) {
int index =
lookupString(val, WifiConfiguration.GroupCipher.strings);
if (0 <= index) {
config.allowedGroupCiphers.set(index);
}
}
}
|
| public boolean | reassociate()see {@link android.net.wifi.WifiManager#reassociate()}
enforceChangePermission();
synchronized (mWifiStateTracker) {
return WifiNative.reassociateCommand();
}
|
| public boolean | reconnect()see {@link android.net.wifi.WifiManager#reconnect()}
enforceChangePermission();
synchronized (mWifiStateTracker) {
return WifiNative.reconnectCommand();
}
|
| private void | registerForBroadcasts()
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(Intent.ACTION_SCREEN_ON);
intentFilter.addAction(Intent.ACTION_SCREEN_OFF);
intentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
intentFilter.addAction(ACTION_DEVICE_IDLE);
intentFilter.addAction(BluetoothA2dp.SINK_STATE_CHANGED_ACTION);
mContext.registerReceiver(mReceiver, intentFilter);
|
| public boolean | releaseWifiLock(android.os.IBinder lock)
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null);
synchronized (mLocks) {
return releaseWifiLockLocked(lock);
}
|
| private boolean | releaseWifiLockLocked(android.os.IBinder lock)
boolean hadLock;
WifiLock wifiLock = mLocks.removeLock(lock);
hadLock = (wifiLock != null);
if (hadLock) {
int uid = Binder.getCallingUid();
long ident = Binder.clearCallingIdentity();
try {
switch(wifiLock.mLockMode) {
case WifiManager.WIFI_MODE_FULL:
++mFullLocksReleased;
mBatteryStats.noteFullWifiLockReleased(uid);
break;
case WifiManager.WIFI_MODE_SCAN_ONLY:
++mScanLocksReleased;
mBatteryStats.noteScanWifiLockReleased(uid);
break;
}
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(ident);
}
}
updateWifiState();
return hadLock;
|
| private synchronized void | removeHiddenNetwork(int netId)Removes the netId network. For the call to be successful, the network
must be hidden.
if (0 <= netId) {
Boolean isPresent =
mIsHiddenNetworkPresent.remove(netId);
if (isPresent != null) {
// If we remove an existing hidden network that is not
// present, no need to change the counter
if (isPresent) {
decrementHiddentNetworkPresentCounter();
}
} else {
if (DBG) {
Log.d(TAG, "removeHiddenNetwork(): Removing a non-existent network!");
}
}
} else {
Log.e(TAG, "removeHiddenNetwork(): Invalid (negative) network id!");
}
|
| public boolean | removeNetwork(int netId)See {@link android.net.wifi.WifiManager#removeNetwork(int)}
enforceChangePermission();
/*
* If we have hidden networks, we may have to change the scan mode
*/
removeNetworkIfHidden(netId);
return mWifiStateTracker.removeNetwork(netId);
|
| private synchronized void | removeNetworkIfHidden(int netId)Removes the netId network if it is hidden (being kept track of).
if (isHiddenNetwork(netId)) {
removeHiddenNetwork(netId);
}
|
| private synchronized void | resetHiddenNetworksState()Resets the hidden networks state.
mNumHiddenNetworkPresent = 0;
mIsHiddenNetworkPresent.clear();
|
| public boolean | saveConfiguration()Tell the supplicant to persist the current list of configured networks.
boolean result;
enforceChangePermission();
synchronized (mWifiStateTracker) {
result = WifiNative.saveConfigCommand();
if (result && mNeedReconfig) {
mNeedReconfig = false;
result = WifiNative.reloadConfigCommand();
if (result) {
Intent intent = new Intent(WifiManager.NETWORK_IDS_CHANGED_ACTION);
mContext.sendBroadcast(intent);
}
}
}
return result;
|
| private void | sendEnableMessage(boolean enable, boolean persist, int uid)
Message msg = Message.obtain(mWifiHandler,
(enable ? MESSAGE_ENABLE_WIFI : MESSAGE_DISABLE_WIFI),
(persist ? 1 : 0), uid);
msg.sendToTarget();
|
| private void | sendStartMessage(boolean scanOnlyMode)
Message.obtain(mWifiHandler, MESSAGE_START_WIFI, scanOnlyMode ? 1 : 0, 0).sendToTarget();
|
| public boolean | setNumAllowedChannels(int numChannels)Set the number of radio frequency channels that are allowed to be used
in the current regulatory domain. This method should be used only
if the correct number of channels cannot be determined automatically
for some reason. If the operation is successful, the new value is
persisted as a Secure setting.
enforceChangePermission();
/*
* Validate the argument. We'd like to let the Wi-Fi driver do this,
* but if Wi-Fi isn't currently enabled, that's not possible, and
* we want to persist the setting anyway,so that it will take
* effect when Wi-Fi does become enabled.
*/
boolean found = false;
for (int validChan : sValidRegulatoryChannelCounts) {
if (validChan == numChannels) {
found = true;
break;
}
}
if (!found) {
return false;
}
Settings.Secure.putInt(mContext.getContentResolver(),
Settings.Secure.WIFI_NUM_ALLOWED_CHANNELS,
numChannels);
mWifiStateTracker.setNumAllowedChannels(numChannels);
return true;
|
| public boolean | setWifiEnabled(boolean enable)see {@link android.net.wifi.WifiManager#setWifiEnabled(boolean)}
enforceChangePermission();
if (mWifiHandler == null) return false;
synchronized (mWifiHandler) {
sWakeLock.acquire();
mLastEnableUid = Binder.getCallingUid();
sendEnableMessage(enable, true, Binder.getCallingUid());
}
return true;
|
| private boolean | setWifiEnabledBlocking(boolean enable, boolean persist, int uid)Enables/disables Wi-Fi synchronously.
final int eventualWifiState = enable ? WIFI_STATE_ENABLED : WIFI_STATE_DISABLED;
if (mWifiState == eventualWifiState) {
return true;
}
if (enable && isAirplaneModeOn()) {
return false;
}
setWifiEnabledState(enable ? WIFI_STATE_ENABLING : WIFI_STATE_DISABLING, uid);
if (enable) {
if (!WifiNative.loadDriver()) {
Log.e(TAG, "Failed to load Wi-Fi driver.");
setWifiEnabledState(WIFI_STATE_UNKNOWN, uid);
return false;
}
if (!WifiNative.startSupplicant()) {
WifiNative.unloadDriver();
Log.e(TAG, "Failed to start supplicant daemon.");
setWifiEnabledState(WIFI_STATE_UNKNOWN, uid);
return false;
}
registerForBroadcasts();
mWifiStateTracker.startEventLoop();
} else {
mContext.unregisterReceiver(mReceiver);
// Remove notification (it will no-op if it isn't visible)
mWifiStateTracker.setNotificationVisible(false, 0, false, 0);
boolean failedToStopSupplicantOrUnloadDriver = false;
if (!WifiNative.stopSupplicant()) {
Log.e(TAG, "Failed to stop supplicant daemon.");
setWifiEnabledState(WIFI_STATE_UNKNOWN, uid);
failedToStopSupplicantOrUnloadDriver = true;
}
// We must reset the interface before we unload the driver
mWifiStateTracker.resetInterface();
if (!WifiNative.unloadDriver()) {
Log.e(TAG, "Failed to unload Wi-Fi driver.");
if (!failedToStopSupplicantOrUnloadDriver) {
setWifiEnabledState(WIFI_STATE_UNKNOWN, uid);
failedToStopSupplicantOrUnloadDriver = true;
}
}
if (failedToStopSupplicantOrUnloadDriver) {
return false;
}
}
// Success!
if (persist) {
persistWifiEnabled(enable);
}
setWifiEnabledState(eventualWifiState, uid);
/*
* Initialize the hidden networks state and the number of allowed
* radio channels if Wi-Fi is being turned on.
*/
if (enable) {
mWifiStateTracker.setNumAllowedChannels();
initializeHiddenNetworksState();
}
return true;
|
| private void | setWifiEnabledState(int wifiState, int uid)
final int previousWifiState = mWifiState;
long ident = Binder.clearCallingIdentity();
try {
if (wifiState == WIFI_STATE_ENABLED) {
mBatteryStats.noteWifiOn(uid);
} else if (wifiState == WIFI_STATE_DISABLED) {
mBatteryStats.noteWifiOff(uid);
}
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(ident);
}
// Update state
mWifiState = wifiState;
// Broadcast
final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
intent.putExtra(WifiManager.EXTRA_WIFI_STATE, wifiState);
intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, previousWifiState);
mContext.sendStickyBroadcast(intent);
|
| public boolean | startScan()see {@link android.net.wifi.WifiManager#startScan()}
enforceChangePermission();
synchronized (mWifiStateTracker) {
switch (mWifiStateTracker.getSupplicantState()) {
case DISCONNECTED:
case INACTIVE:
case SCANNING:
case DORMANT:
break;
default:
WifiNative.setScanResultHandlingCommand(
WifiStateTracker.SUPPL_SCAN_HANDLING_LIST_ONLY);
break;
}
return WifiNative.scanCommand();
}
|
| private static java.lang.String | stateName(int wifiState)
switch (wifiState) {
case WIFI_STATE_DISABLING:
return "disabling";
case WIFI_STATE_DISABLED:
return "disabled";
case WIFI_STATE_ENABLING:
return "enabling";
case WIFI_STATE_ENABLED:
return "enabled";
case WIFI_STATE_UNKNOWN:
return "unknown state";
default:
return "[invalid state]";
}
|
| private synchronized void | updateNetworkIfHidden(int netId, boolean present)Updates the netId network presence status if netId is an existing
hidden network.
if (isHiddenNetwork(netId)) {
addOrUpdateHiddenNetwork(netId, present);
}
|
| private void | updateWifiState()
boolean wifiEnabled = getPersistedWifiEnabled();
boolean airplaneMode = isAirplaneModeOn();
boolean lockHeld = mLocks.hasLocks();
int strongestLockMode;
boolean wifiShouldBeEnabled = wifiEnabled && !airplaneMode;
boolean wifiShouldBeStarted = !mDeviceIdle || lockHeld;
if (mDeviceIdle && lockHeld) {
strongestLockMode = mLocks.getStrongestLockMode();
} else {
strongestLockMode = WifiManager.WIFI_MODE_FULL;
}
synchronized (mWifiHandler) {
if (mWifiState == WIFI_STATE_ENABLING && !airplaneMode) {
return;
}
if (wifiShouldBeEnabled) {
if (wifiShouldBeStarted) {
sWakeLock.acquire();
sendEnableMessage(true, false, mLastEnableUid);
sWakeLock.acquire();
sendStartMessage(strongestLockMode == WifiManager.WIFI_MODE_SCAN_ONLY);
} else {
int wakeLockTimeout =
Settings.Secure.getInt(
mContext.getContentResolver(),
Settings.Secure.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS,
DEFAULT_WAKELOCK_TIMEOUT);
/*
* The following wakelock is held in order to ensure
* that the connectivity manager has time to fail over
* to the mobile data network. The connectivity manager
* releases it once mobile data connectivity has been
* established. If connectivity cannot be established,
* the wakelock is released after wakeLockTimeout
* milliseconds have elapsed.
*/
sDriverStopWakeLock.acquire();
mWifiHandler.sendEmptyMessage(MESSAGE_STOP_WIFI);
mWifiHandler.sendEmptyMessageDelayed(MESSAGE_RELEASE_WAKELOCK, wakeLockTimeout);
}
} else {
sWakeLock.acquire();
sendEnableMessage(false, false, mLastEnableUid);
}
}
|
