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Add Filtering for snoop logs based on L2CAP and RFCOMM Channels (3/4)

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* Change btsnoop logging into disabled, filtered, and full modes
* When ro.isdebuggable is 1, filtered logging is enabled by default
* Otherwise, disabled by default
* When legacy mode is enabled, translate it to full and reset legacy
  property to empty

Bug: 112970672
Bug: 67669544
Test: See that the snoop file always exists but is filtered when
snooplogs are disabled and unfiltered when enabled. Unit tests.
Change-Id: Icec8c4f2f01138b8858765f6f1c1318e1f005135
This commit is contained in:
Ajay Panicker
2018-11-30 15:26:02 -08:00
parent f57f490aa6
commit fc4d53c24a
3 changed files with 131 additions and 47 deletions
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6
res/xml/development_settings.xml
View File

@@ -59,10 +59,12 @@
android:entries="@array/hdcp_checking_titles"
android:entryValues="@array/hdcp_checking_values" />
<SwitchPreference
<ListPreference
android:key="bt_hci_snoop_log"
android:title="@string/bt_hci_snoop_log"
android:summary="@string/bt_hci_snoop_log_summary" />
android:dialogTitle="@string/bt_hci_snoop_log_summary"
android:entries="@array/bt_hci_snoop_log_entries"
android:entryValues="@array/bt_hci_snoop_log_values" />
<com.android.settingslib.RestrictedSwitchPreference
android:key="oem_unlock_enable"

65
src/com/android/settings/development/BluetoothSnoopLogPreferenceController.java
View File

@@ -17,12 +17,19 @@
package com.android.settings.development;
import android.content.Context;
import android.os.Build;
import android.os.SystemProperties;
import android.provider.Settings;
import android.text.TextUtils;
import android.util.Log;
import androidx.annotation.VisibleForTesting;
import androidx.preference.ListPreference;
import androidx.preference.Preference;
import androidx.preference.SwitchPreference;
import com.android.settings.R;
import com.android.settings.core.PreferenceControllerMixin;
import com.android.settingslib.development.DeveloperOptionsPreferenceController;
@@ -31,11 +38,40 @@ public class BluetoothSnoopLogPreferenceController extends DeveloperOptionsPrefe
private static final String PREFERENCE_KEY = "bt_hci_snoop_log";
@VisibleForTesting
static final String BLUETOOTH_BTSNOOP_ENABLE_PROPERTY =
"persist.bluetooth.btsnoopenable";
static final int BTSNOOP_LOG_MODE_DISABLED_INDEX = 0;
@VisibleForTesting
static final int BTSNOOP_LOG_MODE_FILTERED_INDEX = 1;
@VisibleForTesting
static final int BTSNOOP_LOG_MODE_FULL_INDEX = 2;
@VisibleForTesting
static final String BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY = "persist.bluetooth.btsnooplogmode";
private final String[] mListValues;
private final String[] mListEntries;
public BluetoothSnoopLogPreferenceController(Context context) {
super(context);
mListValues = context.getResources().getStringArray(R.array.bt_hci_snoop_log_values);
mListEntries = context.getResources().getStringArray(R.array.bt_hci_snoop_log_entries);
}
// Default mode is FILTERED on userdebug/eng build, DISABLED on user build,
// or can be changed by modifying the global setting.
public int getDefaultModeIndex() {
if (!Build.IS_DEBUGGABLE) {
return BTSNOOP_LOG_MODE_DISABLED_INDEX;
}
final String default_mode = Settings.Global.getString(mContext.getContentResolver(),
Settings.Global.BLUETOOTH_BTSNOOP_DEFAULT_MODE);
for (int i = 0; i < mListValues.length; i++) {
if (TextUtils.equals(default_mode, mListValues[i])) {
return i;
}
}
return BTSNOOP_LOG_MODE_FILTERED_INDEX;
}
@Override
@@ -45,23 +81,32 @@ public class BluetoothSnoopLogPreferenceController extends DeveloperOptionsPrefe
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
final boolean enableBtSnoopLog = (Boolean) newValue;
SystemProperties.set(BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, Boolean.toString(enableBtSnoopLog));
SystemProperties.set(BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY, newValue.toString());
updateState(mPreference);
return true;
}
@Override
public void updateState(Preference preference) {
super.updateState(preference);
final boolean enableBtSnoopLog = SystemProperties.getBoolean(
BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, false /* def */);
((SwitchPreference) mPreference).setChecked(enableBtSnoopLog);
final ListPreference listPreference = (ListPreference) preference;
final String currentValue = SystemProperties.get(BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY);
int index = getDefaultModeIndex();
for (int i = 0; i < mListValues.length; i++) {
if (TextUtils.equals(currentValue, mListValues[i])) {
index = i;
break;
}
}
listPreference.setValue(mListValues[index]);
listPreference.setSummary(mListEntries[index]);
}
@Override
protected void onDeveloperOptionsSwitchDisabled() {
super.onDeveloperOptionsSwitchDisabled();
SystemProperties.set(BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, Boolean.toString(false));
((SwitchPreference) mPreference).setChecked(false);
SystemProperties.set(BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY, null);
((ListPreference) mPreference).setValue(mListValues[getDefaultModeIndex()]);
((ListPreference) mPreference).setSummary(mListEntries[getDefaultModeIndex()]);
}
}

107
tests/robotests/src/com/android/settings/development/BluetoothSnoopLogPreferenceControllerTest.java
View File

@@ -16,86 +16,123 @@
package com.android.settings.development;
import static com.android.settings.development.BluetoothSnoopLogPreferenceController
.BLUETOOTH_BTSNOOP_ENABLE_PROPERTY;
import static com.android.settings.development.BluetoothSnoopLogPreferenceController.BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY;
import static com.google.common.truth.Truth.assertThat;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import android.content.Context;
import android.content.res.Resources;
import android.os.SystemProperties;
import androidx.preference.ListPreference;
import androidx.preference.PreferenceScreen;
import androidx.preference.SwitchPreference;
import com.android.settings.R;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.mockito.Spy;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.RuntimeEnvironment;
@RunWith(RobolectricTestRunner.class)
public class BluetoothSnoopLogPreferenceControllerTest {
@Mock
private Context mContext;
@Mock
private SwitchPreference mPreference;
@Spy
private Context mSpyContext = RuntimeEnvironment.application;
@Spy
private Resources mSpyResources = RuntimeEnvironment.application.getResources();
private ListPreference mPreference;
@Mock
private PreferenceScreen mPreferenceScreen;
private BluetoothSnoopLogPreferenceController mController;
private CharSequence[] mListValues;
private CharSequence[] mListEntries;
@Before
public void setup() {
MockitoAnnotations.initMocks(this);
mController = new BluetoothSnoopLogPreferenceController(mContext);
doReturn(mSpyResources).when(mSpyContext).getResources();
// Get XML values without mock
// Setup test list preference using XML values
mPreference = new ListPreference(mSpyContext);
mPreference.setEntries(R.array.bt_hci_snoop_log_entries);
mPreference.setEntryValues(R.array.bt_hci_snoop_log_values);
// Init the actual controller
mController = new BluetoothSnoopLogPreferenceController(mSpyContext);
// Construct preference in the controller via a mocked preference screen object
when(mPreferenceScreen.findPreference(mController.getPreferenceKey()))
.thenReturn(mPreference);
mController.displayPreference(mPreferenceScreen);
mListValues = mPreference.getEntryValues();
mListEntries = mPreference.getEntries();
}
@Test
public void onPreferenceChanged_turnOnBluetoothSnoopLog() {
mController.onPreferenceChange(null, true);
public void verifyResourceSizeAndRange() {
// Verify normal list entries and default preference entries have the same size
assertThat(mListEntries.length).isEqualTo(mListValues.length);
// Update the preference
mController.updateState(mPreference);
// Verify default preference value, entry and summary
final int defaultIndex = mController.getDefaultModeIndex();
assertThat(mPreference.getValue()).isEqualTo(mListValues[defaultIndex]);
assertThat(mPreference.getEntry()).isEqualTo(mListEntries[defaultIndex]);
assertThat(mPreference.getSummary()).isEqualTo(mListEntries[defaultIndex]);
}
final boolean mode = SystemProperties.getBoolean(BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, false);
@Test
public void onPreferenceChanged_turnOnFullBluetoothSnoopLog() {
mController.onPreferenceChange(null,
mListValues[BluetoothSnoopLogPreferenceController.BTSNOOP_LOG_MODE_FULL_INDEX]);
final String mode = SystemProperties.get(BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY);
// "full" is hard-coded between Settings and system/bt
assertThat(mode).isEqualTo("full");
}
assertThat(mode).isTrue();
@Test
public void onPreferenceChanged_turnOnFilteredBluetoothSnoopLog() {
mController.onPreferenceChange(null,
mListValues[BluetoothSnoopLogPreferenceController.BTSNOOP_LOG_MODE_FILTERED_INDEX]);
final String mode = SystemProperties.get(BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY);
// "filtered" is hard-coded between Settings and system/bt
assertThat(mode).isEqualTo("filtered");
}
@Test
public void onPreferenceChanged_turnOffBluetoothSnoopLog() {
mController.onPreferenceChange(null, false);
final boolean mode = SystemProperties.getBoolean(BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, false);
assertThat(mode).isFalse();
mController.onPreferenceChange(null,
mListValues[BluetoothSnoopLogPreferenceController.BTSNOOP_LOG_MODE_DISABLED_INDEX]);
final String mode = SystemProperties.get(BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY);
// "disabled" is hard-coded between Settings and system/bt
assertThat(mode).isEqualTo("disabled");
}
@Test
public void updateState_preferenceShouldBeChecked() {
SystemProperties.set(BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, Boolean.toString(true));
mController.updateState(mPreference);
verify(mPreference).setChecked(true);
}
@Test
public void updateState_preferenceShouldNotBeChecked() {
SystemProperties.set(BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, Boolean.toString(false));
mController.updateState(mPreference);
verify(mPreference).setChecked(false);
public void updateState_preferenceShouldBeSetToRightValue() {
for (int i = 0; i < mListValues.length; ++i) {
SystemProperties.set(BLUETOOTH_BTSNOOP_LOG_MODE_PROPERTY, mListValues[i].toString());
mController.updateState(mPreference);
assertThat(mPreference.getValue()).isEqualTo(mListValues[i].toString());
assertThat(mPreference.getSummary()).isEqualTo(mListEntries[i].toString());
}
}
@Test
public void onDeveloperOptionsDisabled_shouldDisablePreference() {
mController.onDeveloperOptionsDisabled();
verify(mPreference).setEnabled(false);
verify(mPreference).setChecked(false);
assertThat(mPreference.isEnabled()).isFalse();
assertThat(mPreference.getValue()).isEqualTo(
mListValues[mController.getDefaultModeIndex()]
.toString());
assertThat(mPreference.getSummary()).isEqualTo(
mListEntries[mController.getDefaultModeIndex()]
.toString());
}
}