Metrics: number of IP renewal failures

Counts the number of times IP provisioning failure occurs in
ConnectedState.

Bug: 147448863
Test: atest FrameworksWifiTests
Change-Id: I4274bba5a82036d1b61affbfd027bba9371955aa

5 files changed, 38 insertions, 0 deletions

diff --git a/service/java/com/android/server/wifi/ClientModeImpl.java b/service/java/com/android/server/wifi/ClientModeImpl.java
index 8957f21fe..4f7fcf0ef 100644
--- a/service/java/com/android/server/wifi/ClientModeImpl.java
+++ b/service/java/com/android/server/wifi/ClientModeImpl.java
@@ -5158,6 +5158,10 @@ public class ClientModeImpl extends StateMachine {
                         break;
                     }
                     break;
+                case CMD_IP_CONFIGURATION_LOST:
+                    mWifiMetrics.incrementIpRenewalFailure();
+                    handleStatus = NOT_HANDLED;
+                    break;
                 default:
                     handleStatus = NOT_HANDLED;
                     break;
diff --git a/service/java/com/android/server/wifi/WifiMetrics.java b/service/java/com/android/server/wifi/WifiMetrics.java
index 1a0a13d35..f93a5cc9d 100644
--- a/service/java/com/android/server/wifi/WifiMetrics.java
+++ b/service/java/com/android/server/wifi/WifiMetrics.java
@@ -2853,6 +2853,8 @@ public class WifiMetrics {
                 pw.println("mWifiLogProto.rxLinkSpeedCount5gLow=" + mRxLinkSpeedCount5gLow);
                 pw.println("mWifiLogProto.rxLinkSpeedCount5gMid=" + mRxLinkSpeedCount5gMid);
                 pw.println("mWifiLogProto.rxLinkSpeedCount5gHigh=" + mRxLinkSpeedCount5gHigh);
+                pw.println("mWifiLogProto.numIpRenewalFailure="
+                        + mWifiLogProto.numIpRenewalFailure);
             }
         }
     }
@@ -5112,6 +5114,15 @@ public class WifiMetrics {
     }
 
     /**
+     * Increment number of IP renewal failures.
+     */
+    public void incrementIpRenewalFailure() {
+        synchronized (mLock) {
+            mWifiLogProto.numIpRenewalFailure++;
+        }
+    }
+
+    /**
      * Sets the duration for evaluating Wifi condition to trigger a data stall
      */
     public void setDataStallDurationMs(int duration) {
diff --git a/service/proto/src/metrics.proto b/service/proto/src/metrics.proto
index aa0b38e22..60dd432c4 100644
--- a/service/proto/src/metrics.proto
+++ b/service/proto/src/metrics.proto
@@ -573,6 +573,9 @@ message WifiLog {
 
   // Histogram of Rx link speed at 5G high band
   repeated Int32Count rx_link_speed_count_5g_high = 156;
+
+  // Count of IP renewal failures.
+  optional int32 num_ip_renewal_failure = 157;
 }
 
 // Information that gets logged for every WiFi connection.
diff --git a/tests/wifitests/src/com/android/server/wifi/ClientModeImplTest.java b/tests/wifitests/src/com/android/server/wifi/ClientModeImplTest.java
index cf893f494..4394c87b4 100644
--- a/tests/wifitests/src/com/android/server/wifi/ClientModeImplTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/ClientModeImplTest.java
@@ -1551,6 +1551,8 @@ public class ClientModeImplTest extends WifiBaseTest {
         mLooper.dispatchAll();
 
         assertEquals("DisconnectingState", getCurrentState().getName());
+        // Verify this is not counted as a IP renewal failure
+        verify(mWifiMetrics, never()).incrementIpRenewalFailure();
         // Verifies that WifiLastResortWatchdog be notified
         // by DHCP failure
         verify(mWifiLastResortWatchdog, times(2)).noteConnectionFailureAndTriggerIfNeeded(
@@ -1564,6 +1566,19 @@ public class ClientModeImplTest extends WifiBaseTest {
     }
 
     /**
+     * Verify that a IP renewal failure is logged when IP provisioning fail in the
+     * ConnectedState.
+     */
+    @Test
+    public void testDhcpRenewalMetrics() throws Exception {
+        connect();
+        injectDhcpFailure();
+        mLooper.dispatchAll();
+
+        verify(mWifiMetrics).incrementIpRenewalFailure();
+    }
+
+    /**
      * Verify that the network selection status will be updated with DISABLED_AUTHENTICATION_FAILURE
      * when wrong password authentication failure is detected and the network had been
      * connected previously.
diff --git a/tests/wifitests/src/com/android/server/wifi/WifiMetricsTest.java b/tests/wifitests/src/com/android/server/wifi/WifiMetricsTest.java
index d63ace814..497e1f59a 100644
--- a/tests/wifitests/src/com/android/server/wifi/WifiMetricsTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/WifiMetricsTest.java
@@ -410,6 +410,7 @@ public class WifiMetricsTest extends WifiBaseTest {
     private static final int NUM_ONESHOT_SCAN_REQUESTS_WITH_DFS_CHANNELS = 4;
     private static final int NUM_ADD_OR_UPDATE_NETWORK_CALLS = 5;
     private static final int NUM_ENABLE_NETWORK_CALLS = 6;
+    private static final long NUM_IP_RENEWAL_FAILURE = 7;
 
     /** Number of notifications per "Connect to Network" notification type. */
     private static final int[] NUM_CONNECT_TO_NETWORK_NOTIFICATIONS = {0, 10, 20, 30, 40};
@@ -869,6 +870,9 @@ public class WifiMetricsTest extends WifiBaseTest {
         for (int i = 0; i < NUM_ENABLE_NETWORK_CALLS; i++) {
             mWifiMetrics.incrementNumEnableNetworkCalls();
         }
+        for (int i = 0; i < NUM_IP_RENEWAL_FAILURE; i++) {
+            mWifiMetrics.incrementIpRenewalFailure();
+        }
 
         mWifiMetrics.setWatchdogSuccessTimeDurationMs(NUM_WATCHDOG_SUCCESS_DURATION_MS);
         mResources.setBoolean(R.bool.config_wifi_connected_mac_randomization_supported,
@@ -1208,6 +1212,7 @@ public class WifiMetricsTest extends WifiBaseTest {
                 mDecodedProto.numOneshotHasDfsChannelScans);
         assertEquals(NUM_ADD_OR_UPDATE_NETWORK_CALLS, mDecodedProto.numAddOrUpdateNetworkCalls);
         assertEquals(NUM_ENABLE_NETWORK_CALLS, mDecodedProto.numEnableNetworkCalls);
+        assertEquals(NUM_IP_RENEWAL_FAILURE, mDecodedProto.numIpRenewalFailure);
     }
 
     /**