PasspointNetworkEvaluator: Ignore networks disconnected by user.

WifiConfigManager maintains a blacklist of all ephemeral networks that
the user decided to disconnect. Avoid connecting back to them in all the
evaluators (already handled in suggestion & scored evaluators).

Bug: 130309348
Test: ./frameworks/opt/net/wifi/tests/wifitests/runtests.sh
Change-Id: If72207b166b76bd32ad1bcfcd70fb069464d650f
Signed-off-by: Ecco Park <eccopark@google.com>

2 files changed, 54 insertions, 5 deletions

diff --git a/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java b/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java
index d21808981..2f73ca7f0 100644
--- a/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java
@@ -4415,8 +4415,7 @@ public class WifiConfigManagerTest {
      */
     @Test
     public void testDisableEphemeralNetwork() throws Exception {
-        WifiConfiguration ephemeralNetwork = WifiConfigurationTestUtil.createOpenNetwork();
-        ephemeralNetwork.ephemeral = true;
+        WifiConfiguration ephemeralNetwork = WifiConfigurationTestUtil.createEphemeralNetwork();
         List<WifiConfiguration> networks = new ArrayList<>();
         networks.add(ephemeralNetwork);
 
@@ -4427,21 +4426,46 @@ public class WifiConfigManagerTest {
         WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                 networks, retrievedNetworks);
 
+        verifyExpiryOfTimeout(ephemeralNetwork);
+    }
+
+    /**
+     * Verifies the disconnection of Passpoint network using
+     * {@link WifiConfigManager#disableEphemeralNetwork(String)}.
+     */
+    @Test
+    public void testDisablePasspointNetwork() throws Exception {
+        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();
+
+        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);
+
+        List<WifiConfiguration> networks = new ArrayList<>();
+        networks.add(passpointNetwork);
+
+        List<WifiConfiguration> retrievedNetworks =
+                mWifiConfigManager.getConfiguredNetworksWithPasswords();
+        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
+                networks, retrievedNetworks);
+
+        verifyExpiryOfTimeout(passpointNetwork);
+    }
+
+    private void verifyExpiryOfTimeout(WifiConfiguration config) {
         // Disable the ephemeral network.
         long disableTimeMs = 546643L;
         long currentTimeMs = disableTimeMs;
         when(mClock.getWallClockMillis()).thenReturn(currentTimeMs);
-        mWifiConfigManager.disableEphemeralNetwork(ephemeralNetwork.SSID);
+        mWifiConfigManager.disableEphemeralNetwork(config.SSID);
 
         // Before the expiry of timeout.
         currentTimeMs = disableTimeMs + WifiConfigManager.DELETED_EPHEMERAL_SSID_EXPIRY_MS - 1;
         when(mClock.getWallClockMillis()).thenReturn(currentTimeMs);
-        assertTrue(mWifiConfigManager.wasEphemeralNetworkDeleted(ephemeralNetwork.SSID));
+        assertTrue(mWifiConfigManager.wasEphemeralNetworkDeleted(config.SSID));
 
         // After the expiry of timeout.
         currentTimeMs = disableTimeMs + WifiConfigManager.DELETED_EPHEMERAL_SSID_EXPIRY_MS + 1;
         when(mClock.getWallClockMillis()).thenReturn(currentTimeMs);
-        assertFalse(mWifiConfigManager.wasEphemeralNetworkDeleted(ephemeralNetwork.SSID));
+        assertFalse(mWifiConfigManager.wasEphemeralNetworkDeleted(config.SSID));
     }
 
     private NetworkUpdateResult verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
diff --git a/tests/wifitests/src/com/android/server/wifi/hotspot2/PasspointNetworkEvaluatorTest.java b/tests/wifitests/src/com/android/server/wifi/hotspot2/PasspointNetworkEvaluatorTest.java
index 591db7d09..ce6aaf277 100644
--- a/tests/wifitests/src/com/android/server/wifi/hotspot2/PasspointNetworkEvaluatorTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/hotspot2/PasspointNetworkEvaluatorTest.java
@@ -637,4 +637,29 @@ public class PasspointNetworkEvaluatorTest {
                 anyInt());
         verify(mOnConnectableListener, never()).onConnectable(any(), any(), anyInt());
     }
+
+    /**
+     * Verify that when a network matching a home provider is found, but the network was
+     * disconnected previously by user, it returns {@code null} for candidate.
+     */
+    @Test
+    public void evaluateScanResultWithHomeMatchButPreviouslyUserDisconnected() {
+        List<ScanDetail> scanDetails = Arrays.asList(new ScanDetail[]{
+                generateScanDetail(TEST_SSID1, TEST_BSSID1)});
+
+        // Setup matching providers for ScanDetail with TEST_SSID1.
+        Pair<PasspointProvider, PasspointMatch> homeProvider = Pair.create(
+                TEST_PROVIDER1, PasspointMatch.HomeProvider);
+
+        // Return homeProvider for the first ScanDetail (TEST_SSID1).
+        when(mPasspointManager.matchProvider(any(ScanResult.class))).thenReturn(homeProvider);
+        when(mWifiConfigManager.addOrUpdateNetwork(any(WifiConfiguration.class), anyInt()))
+                .thenReturn(new NetworkUpdateResult(TEST_NETWORK_ID));
+        when(mWifiConfigManager.getConfiguredNetwork(TEST_NETWORK_ID)).thenReturn(TEST_CONFIG1);
+        when(mWifiConfigManager.wasEphemeralNetworkDeleted("\"" + TEST_SSID1 + "\""))
+                .thenReturn(true);
+        assertEquals(null, mEvaluator.evaluateNetworks(
+                scanDetails, null, null, false, false, mOnConnectableListener));
+        verify(mOnConnectableListener, never()).onConnectable(any(), any(), anyInt());
+    }
 }