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// Copyright (c) 2012 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.
#ifndef NET_SOCKET_NEXT_PROTO_H_
#define NET_SOCKET_NEXT_PROTO_H_
#include <vector>
#include "net/base/net_export.h"
namespace net {
// Next Protocol Negotiation (NPN), if successful, results in agreement on an
// application-level string that specifies the application level protocol to
// use over the TLS connection. NextProto enumerates the application level
// protocols that we recognize. Do not change or reuse values, because they
// are used to collect statistics on UMA. Also, values must be in [0,499),
// because of the way TLS protocol negotiation extension information is added to
// UMA histogram.
enum NextProto {
kProtoUnknown = 0,
kProtoHTTP11 = 1,
kProtoMinimumVersion = kProtoHTTP11,
kProtoDeprecatedSPDY2 = 100,
kProtoSPDYMinimumVersion = kProtoDeprecatedSPDY2,
kProtoSPDYHistogramOffset = kProtoDeprecatedSPDY2,
kProtoSPDY3 = 101,
kProtoSPDY31 = 102,
kProtoSPDY4_14 = 103, // HTTP/2 draft-14
kProtoSPDY4MinimumVersion = kProtoSPDY4_14,
kProtoSPDY4_15 = 104, // HTTP/2 draft-15
kProtoSPDY4MaximumVersion = kProtoSPDY4_15,
kProtoSPDYMaximumVersion = kProtoSPDY4MaximumVersion,
kProtoQUIC1SPDY3 = 200,
kProtoMaximumVersion = kProtoQUIC1SPDY3,
};
// List of protocols to use for NPN, used for configuring HttpNetworkSessions.
typedef std::vector<NextProto> NextProtoVector;
// Convenience functions to create NextProtoVector.
NET_EXPORT NextProtoVector NextProtosHttpOnly();
// Default values, which are subject to change over time. Currently just
// SPDY 3 and 3.1.
NET_EXPORT NextProtoVector NextProtosDefaults();
NET_EXPORT NextProtoVector NextProtosWithSpdyAndQuic(bool spdy_enabled,
bool quic_enabled);
// All of these also enable QUIC.
NET_EXPORT NextProtoVector NextProtosSpdy31();
NET_EXPORT NextProtoVector NextProtosSpdy4Http2();
} // namespace net
#endif // NET_SOCKET_NEXT_PROTO_H_
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