Support backup/restore of FBE policies
Change-Id: Iba8ef20f57b0fb57bb9406c53148a806441d0b59
diff --git a/crypto/ext4crypt/ext4crypt_tar.h b/crypto/ext4crypt/ext4crypt_tar.h
new file mode 100644
index 0000000..1c9cef0
--- /dev/null
+++ b/crypto/ext4crypt/ext4crypt_tar.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2016 Team Win Recovery 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 __EXT4CRYPT_TAR_H
+#define __EXT4CRYPT_TAR_H
+
+#include <sys/cdefs.h>
+#include <stdbool.h>
+#include <cutils/multiuser.h>
+
+__BEGIN_DECLS
+
+bool lookup_ref_key(const char* policy, char* policy_type);
+bool lookup_ref_tar(const char* policy_type, char* policy);
+
+void policy_to_hex(const char* policy, char* hex);
+bool e4crypt_policy_set(const char *directory, const char *policy,
+ size_t policy_length, int contents_encryption_mode);
+bool e4crypt_policy_get(const char *directory, char *policy,
+ size_t policy_length, int contents_encryption_mode);
+
+bool e4crypt_set_mode();
+__END_DECLS
+
+#endif