1 files changed, 58 insertions, 0 deletions
diff --git a/dom/webauthn/CtapArgs.h b/dom/webauthn/CtapArgs.h
new file mode 100644
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+++ b/dom/webauthn/CtapArgs.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef CtapArgs_h
+#define CtapArgs_h
+
+#include "mozilla/dom/WebAuthnTransactionChild.h"
+#include "mozilla/ipc/BackgroundParent.h"
+#include "nsIWebAuthnController.h"
+
+namespace mozilla::dom {
+
+// These classes provide an FFI between C++ and Rust for the getters of IPC
+// objects (WebAuthnMakeCredentialInfo and WebAuthnGetAssertionInfo).  They hold
+// non-owning references to IPC objects, and must only be used within the
+// lifetime of the IPC transaction that created them. There are runtime
+// assertions to ensure that these types are created and used on the IPC
+// background thread, but that alone does not guarantee safety.
+
+class CtapRegisterArgs final : public nsICtapRegisterArgs {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICTAPREGISTERARGS
+
+  explicit CtapRegisterArgs(const WebAuthnMakeCredentialInfo& aInfo,
+                            bool aForceNoneAttestation)
+      : mInfo(aInfo), mForceNoneAttestation(aForceNoneAttestation) {
+    mozilla::ipc::AssertIsOnBackgroundThread();
+  }
+
+ private:
+  ~CtapRegisterArgs() = default;
+
+  const WebAuthnMakeCredentialInfo& mInfo;
+  const bool mForceNoneAttestation;
+};
+
+class CtapSignArgs final : public nsICtapSignArgs {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICTAPSIGNARGS
+
+  explicit CtapSignArgs(const WebAuthnGetAssertionInfo& aInfo) : mInfo(aInfo) {
+    mozilla::ipc::AssertIsOnBackgroundThread();
+  }
+
+ private:
+  ~CtapSignArgs() = default;
+
+  const WebAuthnGetAssertionInfo& mInfo;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // CtapArgs_h