|  | // Copyright 2019 The Chromium Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | #include "quic/masque/masque_utils.h" | 
|  |  | 
|  | namespace quic { | 
|  |  | 
|  | ParsedQuicVersionVector MasqueSupportedVersions() { | 
|  | QuicVersionInitializeSupportForIetfDraft(); | 
|  | ParsedQuicVersionVector versions; | 
|  | for (const ParsedQuicVersion& version : AllSupportedVersions()) { | 
|  | // Use all versions that support IETF QUIC. | 
|  | if (version.UsesHttp3()) { | 
|  | QuicEnableVersion(version); | 
|  | versions.push_back(version); | 
|  | } | 
|  | } | 
|  | QUICHE_CHECK(!versions.empty()); | 
|  | return versions; | 
|  | } | 
|  |  | 
|  | QuicConfig MasqueEncapsulatedConfig() { | 
|  | QuicConfig config; | 
|  | config.SetMaxPacketSizeToSend(kMasqueMaxEncapsulatedPacketSize); | 
|  | return config; | 
|  | } | 
|  |  | 
|  | std::string MasqueModeToString(MasqueMode masque_mode) { | 
|  | switch (masque_mode) { | 
|  | case MasqueMode::kInvalid: | 
|  | return "Invalid"; | 
|  | case MasqueMode::kLegacy: | 
|  | return "Legacy"; | 
|  | case MasqueMode::kOpen: | 
|  | return "Open"; | 
|  | } | 
|  | return absl::StrCat("Unknown(", static_cast<int>(masque_mode), ")"); | 
|  | } | 
|  |  | 
|  | std::ostream& operator<<(std::ostream& os, const MasqueMode& masque_mode) { | 
|  | os << MasqueModeToString(masque_mode); | 
|  | return os; | 
|  | } | 
|  |  | 
|  | }  // namespace quic |