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P2PServer: support future major protocol changes

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SChernykh 2023-08-04 15:52:28 +02:00
parent 50e284357c
commit f4a18726b5
1 changed files with 11 additions and 1 deletions
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12
src/p2p_server.cpp
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@ -2312,7 +2312,17 @@ void P2PServer::P2PClient::on_peer_list_response(const uint8_t* buf)
// Check for protocol version message
if ((*reinterpret_cast<uint32_t*>(ip.data + 12) == 0xFFFFFFFFU) && (port == 0xFFFF)) {
m_protocolVersion = std::min(*reinterpret_cast<uint32_t*>(ip.data), SUPPORTED_PROTOCOL_VERSION);
const uint32_t version = *reinterpret_cast<uint32_t*>(ip.data);
// Clients with different major protocol versions communicate using v1.0 protocol
// to reduce backwards compatibility requirements for newer clients
if ((version >> 16) != (SUPPORTED_PROTOCOL_VERSION >> 16)) {
m_protocolVersion = PROTOCOL_VERSION_1_0;
}
else {
m_protocolVersion = std::min(version, SUPPORTED_PROTOCOL_VERSION);
}
m_SoftwareVersion = *reinterpret_cast<uint32_t*>(ip.data + 4);
m_SoftwareID = *reinterpret_cast<uint32_t*>(ip.data + 8);
LOGINFO(5, "peer " << log::Gray() << static_cast<char*>(m_addrString) << log::NoColor()