WifiNative: New interface setup/teardown stub methods

Adding stub methods for the new interface setup/teardown & status change
callbacks.

a) initialize() - Used to initialize and register for death
notifications from HAL & wificond.
b) setupInterfaceForClient/SoftApMode() - Used to configure an interface in
the specified mode. This method accepts a listener object which will be
invoked when the interface is up, down or destroyed. Based on the device
configuration (Iface combo supported) & HalDeviceManager policy, any
existing interface might be torn down. The method will return an interface
name on success which can be used as handle for further operations on
that interface.
c) teardownInterface() - Used to teardown an interface when the mode is
no longer needed (For ex: when the user turns off wifi/SoftAp). This
will also trigger the associated |destroyedListener|.
d) registerStatusListener - Used to listen for any change of status in
the native daemons. (For ex: wificond crashing).

Bug: 69265194
Test: Compiles
Change-Id: I405be2e5624444471faa09a358312ee02b5ee73b
diff --git a/service/java/com/android/server/wifi/WifiNative.java b/service/java/com/android/server/wifi/WifiNative.java
index 2f1b550..3118761 100644
--- a/service/java/com/android/server/wifi/WifiNative.java
+++ b/service/java/com/android/server/wifi/WifiNative.java
@@ -152,6 +152,105 @@
         }
     }
 
+    /**
+     * TODO(b/69426063): NEW API Surface for interface management. This will eventually
+     * deprecate the other interface management API's above. But, for now there will be
+     * some duplication to ease transition.
+     */
+    /**
+     * Initialize the native modules.
+     *
+     * @return true on success, false otherwise.
+     */
+    public boolean initialize() {
+        return false;
+    }
+
+    /**
+     * Callback to notify when the status of one of the native daemons
+     * (wificond, wpa_supplicant & vendor HAL) changes.
+     */
+    public interface StatusListener {
+        /**
+         * @param allReady Indicates if all the native daemons are ready for operation or not.
+         */
+        void onStatusChanged(boolean allReady);
+    }
+
+    /**
+     * Register a StatusListener to get notified about any status changes from the native daemons.
+     *
+     * It is safe to re-register the same callback object - duplicates are detected and only a
+     * single copy kept.
+     *
+     * @param listener StatusListener listener object.
+     */
+    public void registerStatusListener(@NonNull StatusListener listener) {
+    }
+
+    /**
+     * Callback to notify when the associated interface is destroyed, up or down.
+     */
+    public interface InterfaceCallback {
+        /**
+         * Interface destroyed by HalDeviceManager.
+         *
+         * @param ifaceName Name of the iface.
+         */
+        void onDestroyed(String ifaceName);
+
+        /**
+         * Interface is up.
+         *
+         * @param ifaceName Name of the iface.
+         */
+        void onUp(String ifaceName);
+
+        /**
+         * Interface is down.
+         *
+         * @param ifaceName Name of the iface.
+         */
+        void onDown(String ifaceName);
+    }
+
+    /**
+     * Setup an interface for Client mode operations.
+     *
+     * This method configures an interface in STA mode in all the native daemons
+     * (wificond, wpa_supplicant & vendor HAL).
+     *
+     * @param interfaceCallback Associated callback for notifying status changes for the iface.
+     * @return Returns the name of the allocated interface, will be null on failure.
+     */
+    public String setupInterfaceForClientMode(@NonNull InterfaceCallback interfaceCallback) {
+        return null;
+    }
+
+    /**
+     * Setup an interface for Soft AP mode operations.
+     *
+     * This method configures an interface in AP mode in all the native daemons
+     * (wificond, wpa_supplicant & vendor HAL).
+     *
+     * @param interfaceCallback Associated callback for notifying status changes for the iface.
+     * @return Returns the name of the allocated interface, will be null on failure.
+     */
+    public String setupInterfaceForSoftApMode(@NonNull InterfaceCallback interfaceCallback) {
+        return null;
+    }
+
+    /**
+     * Teardown an interface in Client/AP mode.
+     *
+     * This method tears down the associated interface from all the native daemons
+     * (wificond, wpa_supplicant & vendor HAL).
+     *
+     * @param ifaceName Name of the interface.
+     */
+    public void teardownInterface(@NonNull String ifaceName) {
+    }
+
     /********************************************************
      * Wificond operations
      ********************************************************/