camera: Add AIDL interface for CameraServiceProxy.

- Adds an AIDL interface to allow the proxy camera service
  running in system server to accept RPCs from the camera
  service running in mediaserver.
- Request an update to the valid user set from the proxy
  camera service when mediaserver restarts to initialize
  properly + avoid DOS after a crash.

Bug: 21267484

Change-Id: Ib821582794ddd1e3574b5dc6c79f7cb197b57f10

1 files changed, 52 insertions, 0 deletions

diff --git a/include/camera/ICameraServiceProxy.h b/include/camera/ICameraServiceProxy.h
new file mode 100644
index 0000000..12a555f
--- /dev/null
+++ b/include/camera/ICameraServiceProxy.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERASERVICEPROXY_H
+#define ANDROID_HARDWARE_ICAMERASERVICEPROXY_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+class ICameraServiceProxy : public IInterface {
+public:
+    enum {
+        PING_FOR_USER_UPDATE = IBinder::FIRST_CALL_TRANSACTION,
+    };
+
+    DECLARE_META_INTERFACE(CameraServiceProxy);
+
+    virtual void pingForUserUpdate() = 0;
+};
+
+class BnCameraServiceProxy: public BnInterface<ICameraServiceProxy>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+
+
+}; // namespace android
+
+#endif // ANDROID_HARDWARE_ICAMERASERVICEPROXY_H
+
+