binder: Add binder skeletal code for Android

Create the skeletal binder interface for wpa_supplicant. The interface
hierarchy is based off the existing dbus
interface(https://w1.fi/wpa_supplicant/devel/dbus.html).

Since we use libbinder, the binder interface codebase needs to be
written in C++ and can only be compiled on Android platform for now.

The aidl files define binder RPC interfaces. The Android build system
generates the corresponding C++ interface classes which needs to be
implemented by the server process.

The clients can obtain a reference to the binder service (root object)
using:
android::String16 service_name("fi.w1.wpa_supplicant");
android::sp<android::IBinder> binder =
  android::defaultServiceManager()->getService(service_name);

Once a reference to the root object is retrieved, the clients can
obtain references to other RPC objects using that root object methods.

Signed-off-by: Roshan Pius <rpius@google.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/wpa_supplicant/binder/fi/w1/wpa_supplicant/IIface.aidl b/wpa_supplicant/binder/fi/w1/wpa_supplicant/IIface.aidl
new file mode 100644
index 0000000..ea11d42
--- /dev/null
+++ b/wpa_supplicant/binder/fi/w1/wpa_supplicant/IIface.aidl
@@ -0,0 +1,16 @@
+/*
+ * binder interface for wpa_supplicant daemon
+ * Copyright (c) 2004-2016, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2016, Roshan Pius <rpius@google.com>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+package fi.w1.wpa_supplicant;
+
+/**
+ * Interface exposed by wpa_supplicant for each network interface it controls.
+ */
+interface IIface {
+}