Use ServiceState to get data cell ID
ServiceState now contains a CellIdentity that can be obtained
specifically from the data subscription, and for PS on cell
only.
This should be used for connectivity level network monitoring
info.
Bug: 123893112
Test: 1. atest NetworkMonitorTest
2. Verify if cell id is correct
Change-Id: Ieb00de84a0d518e3197e3884f946b872e998304a
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e4d3591..860ebfb 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -31,6 +31,7 @@
<uses-permission android:name="android.permission.INTERACT_ACROSS_USERS" />
<uses-permission android:name="android.permission.NETWORK_STACK" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
+ <uses-permission android:name="android.permission.READ_PRIVILEGED_PHONE_STATE" />
<application
android:label="NetworkStack"
android:defaultToDeviceProtectedStorage="true"
diff --git a/src/com/android/server/connectivity/NetworkMonitor.java b/src/com/android/server/connectivity/NetworkMonitor.java
index 2e72d82..e91b739 100644
--- a/src/com/android/server/connectivity/NetworkMonitor.java
+++ b/src/com/android/server/connectivity/NetworkMonitor.java
@@ -67,15 +67,9 @@
import android.os.SystemClock;
import android.os.UserHandle;
import android.provider.Settings;
-import android.telephony.CellIdentityCdma;
-import android.telephony.CellIdentityGsm;
-import android.telephony.CellIdentityLte;
-import android.telephony.CellIdentityWcdma;
-import android.telephony.CellInfo;
-import android.telephony.CellInfoCdma;
-import android.telephony.CellInfoGsm;
-import android.telephony.CellInfoLte;
-import android.telephony.CellInfoWcdma;
+import android.telephony.AccessNetworkConstants;
+import android.telephony.NetworkRegistrationState;
+import android.telephony.ServiceState;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
@@ -1485,10 +1479,6 @@
*/
private void sendNetworkConditionsBroadcast(boolean responseReceived, boolean isCaptivePortal,
long requestTimestampMs, long responseTimestampMs) {
- if (!mWifiManager.isScanAlwaysAvailable()) {
- return;
- }
-
if (!mSystemReady) {
return;
}
@@ -1496,6 +1486,10 @@
Intent latencyBroadcast =
new Intent(NetworkMonitorUtils.ACTION_NETWORK_CONDITIONS_MEASURED);
if (mNetworkCapabilities.hasTransport(TRANSPORT_WIFI)) {
+ if (!mWifiManager.isScanAlwaysAvailable()) {
+ return;
+ }
+
WifiInfo currentWifiInfo = mWifiManager.getConnectionInfo();
if (currentWifiInfo != null) {
// NOTE: getSSID()'s behavior changed in API 17; before that, SSIDs were not
@@ -1515,39 +1509,21 @@
}
latencyBroadcast.putExtra(NetworkMonitorUtils.EXTRA_CONNECTIVITY_TYPE, TYPE_WIFI);
} else if (mNetworkCapabilities.hasTransport(TRANSPORT_CELLULAR)) {
+ // TODO(b/123893112): Support multi-sim.
latencyBroadcast.putExtra(NetworkMonitorUtils.EXTRA_NETWORK_TYPE,
mTelephonyManager.getNetworkType());
- List<CellInfo> info = mTelephonyManager.getAllCellInfo();
- if (info == null) return;
- int numRegisteredCellInfo = 0;
- for (CellInfo cellInfo : info) {
- if (cellInfo.isRegistered()) {
- numRegisteredCellInfo++;
- if (numRegisteredCellInfo > 1) {
- if (VDBG) {
- logw("more than one registered CellInfo."
- + " Can't tell which is active. Bailing.");
- }
- return;
- }
- if (cellInfo instanceof CellInfoCdma) {
- CellIdentityCdma cellId = ((CellInfoCdma) cellInfo).getCellIdentity();
- latencyBroadcast.putExtra(NetworkMonitorUtils.EXTRA_CELL_ID, cellId);
- } else if (cellInfo instanceof CellInfoGsm) {
- CellIdentityGsm cellId = ((CellInfoGsm) cellInfo).getCellIdentity();
- latencyBroadcast.putExtra(NetworkMonitorUtils.EXTRA_CELL_ID, cellId);
- } else if (cellInfo instanceof CellInfoLte) {
- CellIdentityLte cellId = ((CellInfoLte) cellInfo).getCellIdentity();
- latencyBroadcast.putExtra(NetworkMonitorUtils.EXTRA_CELL_ID, cellId);
- } else if (cellInfo instanceof CellInfoWcdma) {
- CellIdentityWcdma cellId = ((CellInfoWcdma) cellInfo).getCellIdentity();
- latencyBroadcast.putExtra(NetworkMonitorUtils.EXTRA_CELL_ID, cellId);
- } else {
- if (VDBG) logw("Registered cellinfo is unrecognized");
- return;
- }
- }
+ final ServiceState dataSs = mTelephonyManager.getServiceState();
+ if (dataSs == null) {
+ logw("failed to retrieve ServiceState");
+ return;
}
+ // See if the data sub is registered for PS services on cell.
+ final NetworkRegistrationState nrs = dataSs.getNetworkRegistrationState(
+ NetworkRegistrationState.DOMAIN_PS,
+ AccessNetworkConstants.TransportType.WWAN);
+ latencyBroadcast.putExtra(
+ NetworkMonitorUtils.EXTRA_CELL_ID,
+ nrs == null ? null : nrs.getCellIdentity());
latencyBroadcast.putExtra(NetworkMonitorUtils.EXTRA_CONNECTIVITY_TYPE, TYPE_MOBILE);
} else {
return;