SupplicantStaIfaceCallback: Refactor FILS connection event handling

The new FILS param in onStateChanged() callback in V3 HAL version
resulted in duplication of code in V10 & V13 HAL callback
implementation. Refactor the code to remove this duplication.

Changes:
a) Remove the new FILS_NETWORK_CONNECTION_EVENT message and instead add
a boolean in the regular NETWORK_CONNECTION_EVENT message to indicate
whether the connection used FILS or not.
b) Plumb the new filsHlpSent param from V13 callback all the way back to
V10 callback.

(cherry-picked from ag/11403532)

Bug: 135503681
Bug: 159687884
Test: atest com.android.server.wifi
Merged-In: I9a3694540e994c09a5268e0ae0b7722654a3384c
Change-Id: I9a3694540e994c09a5268e0ae0b7722654a3384c

6 files changed, 39 insertions, 77 deletions

diff --git a/service/java/com/android/server/wifi/ClientModeImpl.java b/service/java/com/android/server/wifi/ClientModeImpl.java
index e7371a9f1..f4e3ed5f3 100644
--- a/service/java/com/android/server/wifi/ClientModeImpl.java
+++ b/service/java/com/android/server/wifi/ClientModeImpl.java
@@ -910,8 +910,6 @@ public class ClientModeImpl extends StateMachine {
                 getHandler());
         mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_CONNECTION_EVENT,
                 getHandler());
-        mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.FILS_NETWORK_CONNECTION_EVENT,
-                getHandler());
         mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_DISCONNECTION_EVENT,
                 getHandler());
         mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.RX_HS20_ANQP_ICON_EVENT,
@@ -1998,7 +1996,6 @@ public class ClientModeImpl extends StateMachine {
                 }
                 sb.append(" blacklist=" + Boolean.toString(mDidBlackListBSSID));
                 break;
-            case WifiMonitor.FILS_NETWORK_CONNECTION_EVENT:
             case WifiMonitor.NETWORK_CONNECTION_EVENT:
                 sb.append(" ");
                 sb.append(Integer.toString(msg.arg1));
@@ -2264,9 +2261,6 @@ public class ClientModeImpl extends StateMachine {
             case WifiMonitor.NETWORK_CONNECTION_EVENT:
                 s = "NETWORK_CONNECTION_EVENT";
                 break;
-            case WifiMonitor.FILS_NETWORK_CONNECTION_EVENT:
-                s = "FILS_NETWORK_CONNECTION_EVENT";
-                break;
             case WifiMonitor.NETWORK_DISCONNECTION_EVENT:
                 s = "NETWORK_DISCONNECTION_EVENT";
                 break;
@@ -3456,7 +3450,6 @@ public class ClientModeImpl extends StateMachine {
                 case CMD_RECONNECT:
                 case CMD_REASSOCIATE:
                 case WifiMonitor.NETWORK_CONNECTION_EVENT:
-                case WifiMonitor.FILS_NETWORK_CONNECTION_EVENT:
                 case WifiMonitor.NETWORK_DISCONNECTION_EVENT:
                 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT:
                 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT:
@@ -4213,12 +4206,11 @@ public class ClientModeImpl extends StateMachine {
                     }
                     handleStatus = NOT_HANDLED;
                     break;
-                case WifiMonitor.FILS_NETWORK_CONNECTION_EVENT:
-                    mWifiMetrics.incrementL2ConnectionThroughFilsAuthCount();
-                    mSentHLPs = true;
                 case WifiMonitor.NETWORK_CONNECTION_EVENT:
                     if (mVerboseLoggingEnabled) log("Network connection established");
                     mLastNetworkId = message.arg1;
+                    mSentHLPs = message.arg2 == 1;
+                    if (mSentHLPs) mWifiMetrics.incrementL2ConnectionThroughFilsAuthCount();
                     mWifiConfigManager.clearRecentFailureReason(mLastNetworkId);
                     mLastBssid = (String) message.obj;
                     reasonCode = message.arg2;
@@ -4908,7 +4900,6 @@ public class ClientModeImpl extends StateMachine {
                     }
                     break;
                 case WifiMonitor.NETWORK_CONNECTION_EVENT:
-                case WifiMonitor.FILS_NETWORK_CONNECTION_EVENT:
                     mWifiInfo.setBSSID((String) message.obj);
                     mLastNetworkId = message.arg1;
                     mWifiInfo.setNetworkId(mLastNetworkId);
diff --git a/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackImpl.java b/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackImpl.java
index 9d69003cf..0e2189ba0 100644
--- a/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackImpl.java
+++ b/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackImpl.java
@@ -157,9 +157,11 @@ abstract class SupplicantStaIfaceCallbackImpl extends ISupplicantStaIfaceCallbac
         }
     }
 
-    @Override
-    public void onStateChanged(int newState, byte[/* 6 */] bssid, int id,
-                               ArrayList<Byte> ssid) {
+    /**
+     * Added to plumb the new {@code filsHlpSent} param from the V1.3 callback version.
+     */
+    public void onStateChanged(int newState, byte[/* 6 */] bssid, int id, ArrayList<Byte> ssid,
+            boolean filsHlpSent) {
         synchronized (mLock) {
             mStaIfaceHal.logCallback("onStateChanged");
             SupplicantState newSupplicantState =
@@ -174,7 +176,8 @@ abstract class SupplicantStaIfaceCallbackImpl extends ISupplicantStaIfaceCallbac
             }
             if (newState == State.COMPLETED) {
                 mWifiMonitor.broadcastNetworkConnectionEvent(
-                        mIfaceName, mStaIfaceHal.getCurrentNetworkId(mIfaceName), bssidStr);
+                        mIfaceName, mStaIfaceHal.getCurrentNetworkId(mIfaceName), filsHlpSent,
+                        bssidStr);
             }
             mWifiMonitor.broadcastSupplicantStateChangeEvent(
                     mIfaceName, mStaIfaceHal.getCurrentNetworkId(mIfaceName), wifiSsid,
@@ -183,6 +186,11 @@ abstract class SupplicantStaIfaceCallbackImpl extends ISupplicantStaIfaceCallbac
     }
 
     @Override
+    public void onStateChanged(int newState, byte[/* 6 */] bssid, int id, ArrayList<Byte> ssid) {
+        onStateChanged(newState, bssid, id, ssid, false);
+    }
+
+    @Override
     public void onAnqpQueryDone(byte[/* 6 */] bssid,
                                 ISupplicantStaIfaceCallback.AnqpData data,
                                 ISupplicantStaIfaceCallback.Hs20AnqpData hs20Data) {
diff --git a/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_1Impl.java b/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_1Impl.java
index 12e025e69..c4a3dda16 100644
--- a/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_1Impl.java
+++ b/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_1Impl.java
@@ -53,10 +53,18 @@ abstract class SupplicantStaIfaceCallbackV1_1Impl extends
         mCallbackV10.onNetworkRemoved(id);
     }
 
+    /**
+     * Added to plumb the new {@code filsHlpSent} param from the V1.3 callback version.
+     */
+    public void onStateChanged(int newState, byte[/* 6 */] bssid, int id, ArrayList<Byte> ssid,
+            boolean filsHlpSent) {
+        mCallbackV10.onStateChanged(newState, bssid, id, ssid, filsHlpSent);
+    }
+
     @Override
     public void onStateChanged(int newState, byte[/* 6 */] bssid, int id,
                                ArrayList<Byte> ssid) {
-        mCallbackV10.onStateChanged(newState, bssid, id, ssid);
+        onStateChanged(newState, bssid, id, ssid, false);
     }
 
     @Override
diff --git a/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_2Impl.java b/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_2Impl.java
index 89e66d22c..973e11a4a 100644
--- a/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_2Impl.java
+++ b/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_2Impl.java
@@ -59,10 +59,18 @@ abstract class SupplicantStaIfaceCallbackV1_2Impl extends
         mCallbackV11.onNetworkRemoved(id);
     }
 
+    /**
+     * Added to plumb the new {@code filsHlpSent} param from the V1.3 callback version.
+     */
+    public void onStateChanged(int newState, byte[/* 6 */] bssid, int id, ArrayList<Byte> ssid,
+            boolean filsHlpSent) {
+        mCallbackV11.onStateChanged(newState, bssid, id, ssid, filsHlpSent);
+    }
+
     @Override
     public void onStateChanged(int newState, byte[/* 6 */] bssid, int id,
             ArrayList<Byte> ssid) {
-        mCallbackV11.onStateChanged(newState, bssid, id, ssid);
+        onStateChanged(newState, bssid, id, ssid, false);
     }
 
     @Override
diff --git a/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_3Impl.java b/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_3Impl.java
index f293b9d7c..154fde40b 100644
--- a/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_3Impl.java
+++ b/service/java/com/android/server/wifi/SupplicantStaIfaceCallbackV1_3Impl.java
@@ -15,19 +15,13 @@
  */
 package com.android.server.wifi;
 
-import static com.android.server.wifi.SupplicantStaIfaceCallbackImpl.supplicantHidlStateToFrameworkState;
 
 import android.annotation.NonNull;
 import android.hardware.wifi.supplicant.V1_0.ISupplicantStaIfaceCallback;
-import android.hardware.wifi.supplicant.V1_3.ISupplicantStaIfaceCallback.BssTmData;
-import android.net.wifi.SupplicantState;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiManager;
-import android.net.wifi.WifiSsid;
 import android.util.Log;
 
-import com.android.server.wifi.util.NativeUtil;
-
 import java.util.ArrayList;
 
 abstract class SupplicantStaIfaceCallbackV1_3Impl extends
@@ -37,7 +31,6 @@ abstract class SupplicantStaIfaceCallbackV1_3Impl extends
     private final String mIfaceName;
     private final WifiMonitor mWifiMonitor;
     private final SupplicantStaIfaceHal.SupplicantStaIfaceHalCallbackV1_2 mCallbackV12;
-    private boolean mStateIsFourwayV13 = false; // Used to help check for PSK password mismatch
 
     SupplicantStaIfaceCallbackV1_3Impl(@NonNull SupplicantStaIfaceHal staIfaceHal,
             @NonNull String ifaceName,
@@ -57,9 +50,7 @@ abstract class SupplicantStaIfaceCallbackV1_3Impl extends
 
     @Override
     public void onNetworkRemoved(int id) {
-        mStaIfaceHal.logCallback("onNetworkRemoved");
-        // Reset 4way handshake state since network has been removed.
-        mStateIsFourwayV13 = false;
+        mCallbackV12.onNetworkRemoved(id);
     }
 
     @Override
@@ -96,20 +87,7 @@ abstract class SupplicantStaIfaceCallbackV1_3Impl extends
     @Override
     public void onDisconnected(byte[/* 6 */] bssid, boolean locallyGenerated,
             int reasonCode) {
-        mStaIfaceHal.logCallback("onDisconnected");
-        if (mStaIfaceHal.isVerboseLoggingEnabled()) {
-            Log.e(TAG, "onDisconnected 4way=" + mStateIsFourwayV13
-                    + " locallyGenerated=" + locallyGenerated
-                    + " reasonCode=" + reasonCode);
-        }
-        if (mStateIsFourwayV13
-                && (!locallyGenerated || reasonCode != ReasonCode.IE_IN_4WAY_DIFFERS)) {
-            mWifiMonitor.broadcastAuthenticationFailureEvent(
-                    mIfaceName, WifiManager.ERROR_AUTH_FAILURE_WRONG_PSWD, -1);
-        }
-        mWifiMonitor.broadcastNetworkDisconnectionEvent(
-                mIfaceName, locallyGenerated ? 1 : 0, reasonCode,
-                NativeUtil.macAddressFromByteArray(bssid));
+        mCallbackV12.onDisconnected(bssid, locallyGenerated, reasonCode);
     }
 
     @Override
@@ -365,25 +343,6 @@ abstract class SupplicantStaIfaceCallbackV1_3Impl extends
     @Override
     public void onStateChanged_1_3(int newState, byte[/* 6 */] bssid, int id,
             ArrayList<Byte> ssid, boolean filsHlpSent) {
-        mStaIfaceHal.logCallback("onStateChanged_1_3");
-        SupplicantState newSupplicantState =
-                supplicantHidlStateToFrameworkState(newState);
-        WifiSsid wifiSsid =
-                WifiSsid.createFromByteArray(NativeUtil.byteArrayFromArrayList(ssid));
-        String bssidStr = NativeUtil.macAddressFromByteArray(bssid);
-        mStateIsFourwayV13 =
-                (newState == ISupplicantStaIfaceCallback.State.FOURWAY_HANDSHAKE);
-        if (newSupplicantState == SupplicantState.COMPLETED) {
-            if (filsHlpSent) {
-                mWifiMonitor.broadcastFilsNetworkConnectionEvent(
-                        mIfaceName, mStaIfaceHal.getCurrentNetworkId(mIfaceName), bssidStr);
-            } else {
-                mWifiMonitor.broadcastNetworkConnectionEvent(
-                        mIfaceName, mStaIfaceHal.getCurrentNetworkId(mIfaceName), bssidStr);
-            }
-        }
-        mWifiMonitor.broadcastSupplicantStateChangeEvent(
-                mIfaceName, mStaIfaceHal.getCurrentNetworkId(mIfaceName),
-                wifiSsid, bssidStr, newSupplicantState);
+        mCallbackV12.onStateChanged(newState, bssid, id, ssid, filsHlpSent);
     }
 }
diff --git a/service/java/com/android/server/wifi/WifiMonitor.java b/service/java/com/android/server/wifi/WifiMonitor.java
index 7f620851d..32a96d0eb 100644
--- a/service/java/com/android/server/wifi/WifiMonitor.java
+++ b/service/java/com/android/server/wifi/WifiMonitor.java
@@ -100,9 +100,6 @@ public class WifiMonitor {
     /* MBO/OCE events */
     public static final int MBO_OCE_BSS_TM_HANDLING_DONE         = BASE + 71;
 
-    /* Fils network connection completed */
-    public static final int FILS_NETWORK_CONNECTION_EVENT        = BASE + 62;
-
     /* WPS config errrors */
     private static final int CONFIG_MULTIPLE_PBC_DETECTED = 12;
     private static final int CONFIG_AUTH_FAILURE = 18;
@@ -500,21 +497,12 @@ public class WifiMonitor {
      *
      * @param iface Name of iface on which this occurred.
      * @param networkId ID of the network in wpa_supplicant.
+     * @param filsHlpSent Whether the connection used FILS.
      * @param bssid BSSID of the access point.
      */
-    public void broadcastNetworkConnectionEvent(String iface, int networkId, String bssid) {
-        sendMessage(iface, NETWORK_CONNECTION_EVENT, networkId, 0, bssid);
-    }
-
-    /**
-     * Broadcast the fils network connection event to all the handlers registered for this event.
-     *
-     * @param iface Name of iface on which this occurred.
-     * @param networkId ID of the network in wpa_supplicant.
-     * @param bssid BSSID of the access point.
-     */
-    public void broadcastFilsNetworkConnectionEvent(String iface, int networkId, String bssid) {
-        sendMessage(iface, FILS_NETWORK_CONNECTION_EVENT, networkId, 0, bssid);
+    public void broadcastNetworkConnectionEvent(String iface, int networkId, boolean filsHlpSent,
+            String bssid) {
+        sendMessage(iface, NETWORK_CONNECTION_EVENT, networkId, filsHlpSent ? 1 : 0, bssid);
     }
 
     /**