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/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <array>
#include <cstdint>
#include <string>
namespace dnsdist
{
class Protocol
{
public:
enum typeenum : uint8_t
{
DoUDP = 0,
DoTCP,
DNSCryptUDP,
DNSCryptTCP,
DoT,
DoH,
DoQ,
DoH3
};
Protocol(typeenum protocol = DoUDP) :
d_protocol(protocol)
{
if (protocol >= s_names.size()) {
throw std::runtime_error("Unknown protocol: '" + std::to_string(protocol) + "'");
}
}
explicit Protocol(const std::string& protocol);
bool operator==(typeenum) const;
bool operator!=(typeenum) const;
bool operator==(const Protocol& rhs) const;
bool operator!=(const Protocol& rhs) const;
const std::string& toString() const;
const std::string& toPrettyString() const;
bool isUDP() const;
bool isEncrypted() const;
uint8_t toNumber() const;
private:
typeenum d_protocol;
static constexpr size_t s_numberOfProtocols = 8;
static const std::array<std::string, s_numberOfProtocols> s_names;
static const std::array<std::string, s_numberOfProtocols> s_prettyNames;
};
}
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