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wifi: Provide Scan failure reason codes to application

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Bug: 239210046
Test: compile
Change-Id: Ief1dd64d187a3696dbec8e1f56a63ca39f8075b7
This commit is contained in:
Sunil Ravi
2022-12-06 04:14:39 +00:00
parent f6f0b58c20
commit 807f09cc79
2 changed files with 90 additions and 12 deletions
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6
core/api/system-current.txt
View File

@@ -9494,7 +9494,8 @@ package android.net.wifi.nl80211 {
method @Deprecated @Nullable public android.net.wifi.nl80211.WifiNl80211Manager.SignalPollResult signalPoll(@NonNull String);
method public boolean startPnoScan(@NonNull String, @NonNull android.net.wifi.nl80211.PnoSettings, @NonNull java.util.concurrent.Executor, @NonNull android.net.wifi.nl80211.WifiNl80211Manager.PnoScanRequestCallback);
method @Deprecated public boolean startScan(@NonNull String, int, @Nullable java.util.Set<java.lang.Integer>, @Nullable java.util.List<byte[]>);
method public boolean startScan(@NonNull String, int, @Nullable java.util.Set<java.lang.Integer>, @Nullable java.util.List<byte[]>, @Nullable android.os.Bundle);
method @Deprecated public boolean startScan(@NonNull String, int, @Nullable java.util.Set<java.lang.Integer>, @Nullable java.util.List<byte[]>, @Nullable android.os.Bundle);
method public int startScan2(@NonNull String, int, @Nullable java.util.Set<java.lang.Integer>, @Nullable java.util.List<byte[]>, @Nullable android.os.Bundle);
method public boolean stopPnoScan(@NonNull String);
method public boolean tearDownClientInterface(@NonNull String);
method public boolean tearDownInterfaces();
@@ -9528,7 +9529,8 @@ package android.net.wifi.nl80211 {
}
public static interface WifiNl80211Manager.ScanEventCallback {
method public void onScanFailed();
method @Deprecated public void onScanFailed();
method public default void onScanFailed(int);
method public void onScanResultReady();
}

96
wifi/java/src/android/net/wifi/nl80211/WifiNl80211Manager.java
View File

@@ -137,9 +137,17 @@ public class WifiNl80211Manager {
void onScanResultReady();
/**
* Deprecated in Android 14. Newer wificond implementation should call
* onScanRequestFailed().
* Called when a scan has failed.
* @deprecated The usage is replaced by {@link ScanEventCallback#onScanFailed(int)}
*/
void onScanFailed();
/**
* Called when a scan has failed with errorCode.
*/
default void onScanFailed(int errorCode) {}
}
/**
@@ -230,6 +238,18 @@ public class WifiNl80211Manager {
Binder.restoreCallingIdentity(token);
}
}
@Override
public void OnScanRequestFailed(int errorCode) {
Log.d(TAG, "Scan failed event with error code: " + errorCode);
final long token = Binder.clearCallingIdentity();
try {
mExecutor.execute(() -> mCallback.onScanFailed(
toFrameworkScanStatusCode(errorCode)));
} finally {
Binder.restoreCallingIdentity(token);
}
}
}
/**
@@ -1029,6 +1049,32 @@ public class WifiNl80211Manager {
return startScan(ifaceName, scanType, freqs, hiddenNetworkSSIDs, null);
}
/**
* @deprecated replaced by {@link #startScan2(String, int, Set, List, Bundle)}
*/
@Deprecated
public boolean startScan(@NonNull String ifaceName, @WifiAnnotations.ScanType int scanType,
@SuppressLint("NullableCollection") @Nullable Set<Integer> freqs,
@SuppressLint("NullableCollection") @Nullable List<byte[]> hiddenNetworkSSIDs,
@SuppressLint("NullableCollection") @Nullable Bundle extraScanningParams) {
IWifiScannerImpl scannerImpl = getScannerImpl(ifaceName);
if (scannerImpl == null) {
Log.e(TAG, "No valid wificond scanner interface handler for iface=" + ifaceName);
return false;
}
SingleScanSettings settings = createSingleScanSettings(scanType, freqs, hiddenNetworkSSIDs,
extraScanningParams);
if (settings == null) {
return false;
}
try {
return scannerImpl.scan(settings);
} catch (RemoteException e1) {
Log.e(TAG, "Failed to request scan due to remote exception");
}
return false;
}
/**
* Start a scan using the specified parameters. A scan is an asynchronous operation. The
* result of the operation is returned in the {@link ScanEventCallback} registered when
@@ -1049,24 +1095,41 @@ public class WifiNl80211Manager {
* @param hiddenNetworkSSIDs List of hidden networks to be scanned for, a null indicates that
* no hidden frequencies will be scanned for.
* @param extraScanningParams bundle of extra scanning parameters.
* @return Returns true on success, false on failure (e.g. when called before the interface
* has been set up).
* @return Returns one of the scan status codes defined in {@code WifiScanner#REASON_*}
*/
public boolean startScan(@NonNull String ifaceName, @WifiAnnotations.ScanType int scanType,
public int startScan2(@NonNull String ifaceName, @WifiAnnotations.ScanType int scanType,
@SuppressLint("NullableCollection") @Nullable Set<Integer> freqs,
@SuppressLint("NullableCollection") @Nullable List<byte[]> hiddenNetworkSSIDs,
@SuppressLint("NullableCollection") @Nullable Bundle extraScanningParams) {
IWifiScannerImpl scannerImpl = getScannerImpl(ifaceName);
if (scannerImpl == null) {
Log.e(TAG, "No valid wificond scanner interface handler for iface=" + ifaceName);
return false;
return WifiScanner.REASON_INVALID_ARGS;
}
SingleScanSettings settings = createSingleScanSettings(scanType, freqs, hiddenNetworkSSIDs,
extraScanningParams);
if (settings == null) {
return WifiScanner.REASON_INVALID_ARGS;
}
try {
int status = scannerImpl.scanRequest(settings);
return toFrameworkScanStatusCode(status);
} catch (RemoteException e1) {
Log.e(TAG, "Failed to request scan due to remote exception");
}
return WifiScanner.REASON_UNSPECIFIED;
}
private SingleScanSettings createSingleScanSettings(@WifiAnnotations.ScanType int scanType,
@SuppressLint("NullableCollection") @Nullable Set<Integer> freqs,
@SuppressLint("NullableCollection") @Nullable List<byte[]> hiddenNetworkSSIDs,
@SuppressLint("NullableCollection") @Nullable Bundle extraScanningParams) {
SingleScanSettings settings = new SingleScanSettings();
try {
settings.scanType = getScanType(scanType);
} catch (IllegalArgumentException e) {
Log.e(TAG, "Invalid scan type ", e);
return false;
return null;
}
settings.channelSettings = new ArrayList<>();
settings.hiddenNetworks = new ArrayList<>();
@@ -1094,12 +1157,25 @@ public class WifiNl80211Manager {
}
}
try {
return scannerImpl.scan(settings);
} catch (RemoteException e1) {
Log.e(TAG, "Failed to request scan due to remote exception");
return settings;
}
private int toFrameworkScanStatusCode(int scanStatus) {
switch(scanStatus) {
case IWifiScannerImpl.SCAN_STATUS_SUCCESS:
return WifiScanner.REASON_SUCCEEDED;
case IWifiScannerImpl.SCAN_STATUS_FAILED_BUSY:
return WifiScanner.REASON_BUSY;
case IWifiScannerImpl.SCAN_STATUS_FAILED_ABORT:
return WifiScanner.REASON_ABORT;
case IWifiScannerImpl.SCAN_STATUS_FAILED_NODEV:
return WifiScanner.REASON_NO_DEV;
case IWifiScannerImpl.SCAN_STATUS_FAILED_INVALID_ARGS:
return WifiScanner.REASON_INVALID_ARGS;
case IWifiScannerImpl.SCAN_STATUS_FAILED_GENERIC:
default:
return WifiScanner.REASON_UNSPECIFIED;
}
return false;
}
/**