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Added IPv6 support, added option to disable IPv6 (IPv4-Only mode)

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This commit is contained in:
DcruBro
2025-11-12 09:07:22 +01:00
parent fbafeafc9f
commit e695008e10
4 changed files with 73 additions and 7 deletions
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34
include/columnlynx/server/net/tcp/tcp_server.hpp
View File

@@ -21,9 +21,39 @@ namespace ColumnLynx::Net::TCP {
class TCPServer {
public:
TCPServer(asio::io_context& ioContext, uint16_t port, Utils::LibSodiumWrapper* sodiumWrapper, bool* hostRunning)
: mIoContext(ioContext), mAcceptor(ioContext, asio::ip::tcp::endpoint(asio::ip::tcp::v4(), port)), mSodiumWrapper(sodiumWrapper), mHostRunning(hostRunning)
TCPServer(asio::io_context& ioContext,
uint16_t port,
Utils::LibSodiumWrapper* sodiumWrapper,
bool* hostRunning, bool ipv4Only = false)
: mIoContext(ioContext),
mAcceptor(ioContext),
mSodiumWrapper(sodiumWrapper),
mHostRunning(hostRunning)
{
asio::error_code ec;
if (!ipv4Only) {
// Try IPv6 first (dual-stack check)
asio::ip::tcp::endpoint endpoint_v6(asio::ip::tcp::v6(), port);
mAcceptor.open(endpoint_v6.protocol(), ec);
if (!ec) {
mAcceptor.set_option(asio::ip::v6_only(false), ec); // Allow dual-stack if possible
mAcceptor.bind(endpoint_v6, ec);
}
}
// Fallback to IPv4 if anything failed
if (ec || ipv4Only) {
Utils::warn("TCP: IPv6 unavailable (" + ec.message() + "), falling back to IPv4 only");
asio::ip::tcp::endpoint endpoint_v4(asio::ip::tcp::v4(), port);
mAcceptor.close(); // ensure clean state
mAcceptor.open(endpoint_v4.protocol());
mAcceptor.bind(endpoint_v4);
}
// Start listening
mAcceptor.listen();
Utils::log("Started TCP server on port " + std::to_string(port));
mStartAccept();
}

26
include/columnlynx/server/net/udp/udp_server.hpp
View File

@@ -12,9 +12,31 @@
namespace ColumnLynx::Net::UDP {
class UDPServer {
public:
UDPServer(asio::io_context& ioContext, uint16_t port, bool* hostRunning)
: mSocket(ioContext, asio::ip::udp::endpoint(asio::ip::udp::v4(), port)), mHostRunning(hostRunning)
UDPServer(asio::io_context& ioContext, uint16_t port, bool* hostRunning, bool ipv4Only = false)
: mSocket(ioContext), mHostRunning(hostRunning)
{
asio::error_code ec;
if (!ipv4Only) {
// Try IPv6 first (dual-stack check)
asio::ip::udp::endpoint endpoint_v6(asio::ip::udp::v6(), port);
mSocket.open(endpoint_v6.protocol(), ec);
if (!ec) {
mSocket.set_option(asio::ip::v6_only(false), ec); // Allow dual-stack if possible
mSocket.bind(endpoint_v6, ec);
}
}
// Fallback to IPv4 if anything failed
if (ec || ipv4Only) {
Utils::warn("UDP: IPv6 unavailable (" + ec.message() + "), falling back to IPv4 only");
asio::ip::udp::endpoint endpoint_v4(asio::ip::udp::v4(), port);
mSocket.close(); // ensure clean state
mSocket.open(endpoint_v4.protocol());
mSocket.bind(endpoint_v4);
}
Utils::log("Started UDP server on port " + std::to_string(port));
mStartReceive();
}