crimson/auth: add domain specific error types

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/crimson/auth/Errors.cc b/src/crimson/auth/Errors.cc
new file mode 100644 (file)
index 0000000..c5f1b8d
--- /dev/null
+++ b/src/crimson/auth/Errors.cc
@@ -0,0 +1,31 @@
+#include "Errors.h"
+
+namespace ceph::net {
+
+const std::error_category& auth_category()
+{
+  struct category : public std::error_category {
+    const char* name() const noexcept override {
+      return "ceph::auth";
+    }
+
+    std::string message(int ev) const override {
+      switch (static_cast<error>(ev)) {
+        case error::success:
+          return "success",
+        case error::key_not_found:
+          return "key not found";
+        case error::invalid_key:
+          return "corrupted key";
+        case error::unknown_service:
+          return "unknown service";
+        default:
+          return "unknown";
+      }
+    }
+  };
+  static category instance;
+  return instance;
+}
+
+} // namespace ceph::auth

diff --git a/src/crimson/auth/Errors.h b/src/crimson/auth/Errors.h
new file mode 100644 (file)
index 0000000..92f5c73
--- /dev/null
+++ b/src/crimson/auth/Errors.h
@@ -0,0 +1,37 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#pragma once
+
+namespace ceph::auth {
+
+enum class error {
+  success = 0,
+  key_not_found,
+  invalid_key,
+  unknown_service, // no ticket handler for required service
+};
+
+const std::error_category& auth_category();
+
+inline std::error_code make_error_code(error e)
+{
+  return {static_cast<int>(e), auth_category()};
+}
+
+inline std::error_condition make_error_condition(error e)
+{
+  return {static_cast<int>(e), auth_category()};
+}
+
+class auth_error : public std::runtime_error {};
+
+} // namespace ceph::auth
+
+namespace std {
+
+/// enables implicit conversion to std::error_condition
+template <>
+struct is_error_condition_enum<ceph::auth::error> : public true_type {};
+
+} // namespace std