diff --git a/libs/binder/IPermissionController.cpp b/libs/binder/IPermissionController.cpp
new file mode 100644
index 0000000..bff4c9b
--- /dev/null
+++ b/libs/binder/IPermissionController.cpp
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2005 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.
+ */
+
+#define LOG_TAG "PermissionController"
+
+#include <binder/IPermissionController.h>
+
+#include <utils/Debug.h>
+#include <utils/Log.h>
+#include <binder/Parcel.h>
+#include <utils/String8.h>
+
+#include <private/binder/Static.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+class BpPermissionController : public BpInterface<IPermissionController>
+{
+public:
+    BpPermissionController(const sp<IBinder>& impl)
+        : BpInterface<IPermissionController>(impl)
+    {
+    }
+        
+    virtual bool checkPermission(const String16& permission, int32_t pid, int32_t uid)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IPermissionController::getInterfaceDescriptor());
+        data.writeString16(permission);
+        data.writeInt32(pid);
+        data.writeInt32(uid);
+        remote()->transact(CHECK_PERMISSION_TRANSACTION, data, &reply);
+        // fail on exception
+        if (reply.readInt32() != 0) return 0;
+        return reply.readInt32() != 0;
+    }
+};
+
+IMPLEMENT_META_INTERFACE(PermissionController, "android.os.IPermissionController");
+
+// ----------------------------------------------------------------------
+
+status_t BnPermissionController::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    //printf("PermissionController received: "); data.print();
+    switch(code) {
+        case CHECK_PERMISSION_TRANSACTION: {
+            CHECK_INTERFACE(IPermissionController, data, reply);
+            String16 permission = data.readString16();
+            int32_t pid = data.readInt32();
+            int32_t uid = data.readInt32();
+            bool res = checkPermission(permission, pid, uid);
+            // write exception
+            reply->writeInt32(0);
+            reply->writeInt32(res ? 1 : 0);
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+}; // namespace android
+