Implement Discovery PLATFORM logic in Rust

This commit introduces NativeRemoteAuthService used by ReamoteAuth as an
interface toward Rust platform and protocol implementation

Design doc: go/remote-auth-manager-fishfood-design

Test: built successfully.
Bug: : 291333048
Change-Id: If2fcfee1c637d17bbc417a26ea39dc97062e6bc3
diff --git a/remoteauth/service/jni/src/utils.rs b/remoteauth/service/jni/src/utils.rs
new file mode 100644
index 0000000..e61b895
--- /dev/null
+++ b/remoteauth/service/jni/src/utils.rs
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2023 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.
+ */
+
+use jni::sys::jboolean;
+use log::error;
+
+pub(crate) fn get_boolean_result<T>(result: anyhow::Result<T>, error_msg: &str) -> jboolean {
+    match result {
+        Ok(_) => true,
+        Err(e) => {
+            error!("{} failed with {:?}", error_msg, &e);
+            false
+        }
+    }
+    .into()
+}