Separate the binder backend from android_engine
Create a pure virtual class "KeystoreBackend" which supplies the
crypto methods used by android_engine. Create a KestoreBackendBinder
class which implements the binder backend as a no-op change that
will allow future backends to be added.
Bug: 34603782
Test: Compiles
Change-Id: I16620aba569bd53290145b2b30242c4888106d0a
diff --git a/keystore-engine/keystore_backend_binder.h b/keystore-engine/keystore_backend_binder.h
new file mode 100644
index 0000000..0fcf8de
--- /dev/null
+++ b/keystore-engine/keystore_backend_binder.h
@@ -0,0 +1,34 @@
+/* Copyright 2017 The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
+
+#include "keystore_backend.h"
+
+class KeystoreBackendBinder : public KeystoreBackend {
+ public:
+ KeystoreBackendBinder() {}
+ virtual ~KeystoreBackendBinder() {}
+ int32_t sign(const char *key_id, const uint8_t* in, size_t len,
+ uint8_t** reply, size_t* reply_len) override;
+ int32_t get_pubkey(const char *key_id, uint8_t** pubkey,
+ size_t* reply_len) override;
+};
+