Use "02:00:00:00:00:00" as default invalid mac

For Connected MAC Randomization, use "02:00:00:00:00:00" from WifiInfo
as the default invalid MAC address instead of "00:00:00:00:00:00" from
MacAddress.

Mask the device mac address to "02:00:00:00:00:00" when providing the
info through public WifiManager API's.

Bug: 74446723
Test: Unittest
Change-Id: Ib37ca2bb6e1e9aa584ad2349f38d97a0d334c1a2

2 files changed, 33 insertions, 2 deletions

diff --git a/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java b/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java
index 7ba8ef96e..4cccc88c9 100644
--- a/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java
@@ -33,6 +33,7 @@ import android.net.wifi.ScanResult;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiConfiguration.NetworkSelectionStatus;
 import android.net.wifi.WifiEnterpriseConfig;
+import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
 import android.net.wifi.WifiScanner;
 import android.os.Process;
@@ -1454,7 +1455,7 @@ public class WifiConfigManagerTest {
     }
 
     /**
-     * Verifies that randomized MAC address is masked out to "0:0:0:0:0:0" when we return
+     * Verifies that randomized MAC address is masked out when we return
      * external configs except when explicitly asked for MAC address.
      */
     @Test
@@ -3797,9 +3798,10 @@ public class WifiConfigManagerTest {
 
     private void assertRandomizedMacAddressMaskedInWifiConfiguration(
             WifiConfiguration configuration) {
+        MacAddress defaultMac = MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS);
         MacAddress randomizedMacAddress = configuration.getRandomizedMacAddress();
         if (randomizedMacAddress != null) {
-            assertEquals(MacAddress.ALL_ZEROS_ADDRESS, randomizedMacAddress);
+            assertEquals(defaultMac, randomizedMacAddress);
         }
     }
 
diff --git a/tests/wifitests/src/com/android/server/wifi/WifiStateMachineTest.java b/tests/wifitests/src/com/android/server/wifi/WifiStateMachineTest.java
index bc0958785..4cbc567d9 100644
--- a/tests/wifitests/src/com/android/server/wifi/WifiStateMachineTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/WifiStateMachineTest.java
@@ -2388,4 +2388,33 @@ public class WifiStateMachineTest {
         verify(mWifiNative, never()).setMacAddress(eq(WIFI_IFACE_NAME), any(MacAddress.class));
         assertEquals(mWsm.getWifiInfo().getMacAddress(), oldMac);
     }
+
+    /**
+     * Verifies that we don't set MAC address when config returns an invalid MAC address.
+     */
+    @Test
+    public void testDoNotSetMacWhenInvalid() throws Exception {
+        initializeAndAddNetworkAndVerifySuccess();
+        assertEquals(WifiStateMachine.CONNECT_MODE, mWsm.getOperationalModeForTest());
+        assertEquals(WifiManager.WIFI_STATE_ENABLED, mWsm.syncGetWifiState());
+
+        when(mFrameworkFacade.getIntegerSetting(mContext,
+                Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED, 0)).thenReturn(1);
+        mContentObserver.onChange(false);
+        when(mWifiNative.getMacAddress(WIFI_IFACE_NAME))
+                .thenReturn(TEST_GLOBAL_MAC_ADDRESS.toString());
+
+        WifiConfiguration config = mock(WifiConfiguration.class);
+        when(config.getOrCreateRandomizedMacAddress())
+                .thenReturn(MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS));
+        when(config.getNetworkSelectionStatus())
+                .thenReturn(new WifiConfiguration.NetworkSelectionStatus());
+        when(mWifiConfigManager.getConfiguredNetworkWithoutMasking(0)).thenReturn(config);
+
+        mWsm.sendMessage(WifiStateMachine.CMD_START_CONNECT, 0, 0, sBSSID);
+        mLooper.dispatchAll();
+
+        verify(config).getOrCreateRandomizedMacAddress();
+        verify(mWifiNative, never()).setMacAddress(eq(WIFI_IFACE_NAME), any(MacAddress.class));
+    }
 }