1 files changed, 42 insertions, 0 deletions
diff --git a/grpc/src/core/lib/security/credentials/call_creds_util.h b/grpc/src/core/lib/security/credentials/call_creds_util.h
new file mode 100644
index 00000000..30b70dad
--- /dev/null
+++ b/grpc/src/core/lib/security/credentials/call_creds_util.h
@@ -0,0 +1,42 @@
+//
+// Copyright 2022 gRPC authors.
+//
+// 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 GRPC_CORE_LIB_SECURITY_CREDENTIALS_CALL_CREDS_UTIL_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_CALL_CREDS_UTIL_H
+
+#include <grpc/support/port_platform.h>
+
+#include <string>
+
+#include <grpc/grpc_security.h>
+
+#include "src/core/lib/security/credentials/credentials.h"
+
+namespace grpc_core {
+
+// Helper function to construct service URL for jwt call creds.
+std::string MakeJwtServiceUrl(
+    const ClientMetadataHandle& initial_metadata,
+    const grpc_call_credentials::GetRequestMetadataArgs* args);
+
+// Helper function to construct context for plugin call creds.
+grpc_auth_metadata_context MakePluginAuthMetadataContext(
+    const ClientMetadataHandle& initial_metadata,
+    const grpc_call_credentials::GetRequestMetadataArgs* args);
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_CALL_CREDS_UTIL_H */