0ad/source/network/NetProtocol.h
2026-07-23 16:11:04 +02:00

89 lines
2.6 KiB
C++

/* Copyright (C) 2026 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef NETPROTOCOL_H
#define NETPROTOCOL_H
#include "network/NetMessage.h"
#include "ps/Mod.h"
#include "ps/Pyrogenesis.h"
#include <optional>
#include <string>
#include <type_traits>
#include <vector>
#include <gnutls/gnutls.h>
/**
* Report the peer if we didn't receive a packet after this time (milliseconds).
*/
inline constexpr u32 NETWORK_WARNING_TIMEOUT{2000};
inline constexpr const char* TLS_PRIORITY{
"PERFORMANCE:-VERS-DTLS-ALL:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-TLS1.2:-SHA1:-AES-128-CBC:-AES-256-CBC:"
"-SIGN-RSA-SHA1:-SIGN-ECDSA-SHA1:%DISABLE_TLS13_COMPAT_MODE"};
struct HandshakeError
{
std::string componentType;
std::string clientComponent;
std::string serverComponent;
};
template <typename Message>
Message CreateHandshake() {
Message handshake;
if constexpr (std::is_same_v<Message, CCliHandshakeMessage>)
handshake.m_MagicResponse = PS_PROTOCOL_MAGIC_RESPONSE;
else
handshake.m_Magic = PS_PROTOCOL_MAGIC;
handshake.m_ProtocolVersion = PS_PROTOCOL_VERSION;
handshake.m_EngineVersion = PS_SERIALIZATION_VERSION;
for (const Mod::ModData* mod : Mod::Instance().GetEnabledModsData())
{
if (mod->m_IgnoreInCompatibilityChecks)
continue;
typename Message::S_m_EnabledMods enabledMod;
enabledMod.m_Name = mod->m_Name;
enabledMod.m_Version = mod->m_Version;
handshake.m_EnabledMods.push_back(enabledMod);
}
return handshake;
}
std::optional<HandshakeError> CheckHandshake(const CSrvHandshakeMessage& serverMessage, const CCliHandshakeMessage& clientMessage);
uint64_t timestamp();
struct ngtcp2_conn;
void increaseWindow(ngtcp2_conn* conn, const std::uint64_t streamId, const std::uint64_t size);
struct ngtcp2_rand_ctx;
void OnRandomRequest(std::uint8_t* destination, const std::size_t destinationLength,
const ngtcp2_rand_ctx*);
struct ngtcp2_cid;
int OnNewConnectionIdRequest(ngtcp2_conn*, ngtcp2_cid* cid, std::uint8_t *token, const std::size_t cidlen,
void* /*userData*/);
#endif