mirror of
https://github.com/v2fly/v2ray-core.git
synced 2025-01-03 07:56:42 -05:00
106 lines
2.3 KiB
Go
106 lines
2.3 KiB
Go
package quic
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import (
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"context"
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quic "github.com/lucas-clemente/quic-go"
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"v2ray.com/core/common"
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"v2ray.com/core/common/net"
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"v2ray.com/core/transport/internet"
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"v2ray.com/core/transport/internet/tls"
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)
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// Listener is an internet.Listener that listens for TCP connections.
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type Listener struct {
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listener quic.Listener
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addConn internet.ConnHandler
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}
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func (l *Listener) acceptStreams(session quic.Session) {
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for {
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stream, err := session.AcceptStream()
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if err != nil {
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newError("failed to accept stream").Base(err).WriteToLog()
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session.Close()
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return
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}
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conn := &interConn{
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stream: stream,
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local: session.LocalAddr(),
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remote: session.RemoteAddr(),
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}
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l.addConn(conn)
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}
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}
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func (l *Listener) keepAccepting() {
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for {
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conn, err := l.listener.Accept()
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if err != nil {
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newError("failed to accept QUIC sessions").Base(err).WriteToLog()
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l.listener.Close()
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return
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}
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go l.acceptStreams(conn)
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}
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}
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// Addr implements internet.Listener.Addr.
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func (v *Listener) Addr() net.Addr {
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return v.listener.Addr()
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}
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// Close implements internet.Listener.Close.
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func (v *Listener) Close() error {
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return v.listener.Close()
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}
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// Listen creates a new Listener based on configurations.
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func Listen(ctx context.Context, address net.Address, port net.Port, streamSettings *internet.MemoryStreamConfig, handler internet.ConnHandler) (internet.Listener, error) {
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if address.Family().IsDomain() {
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return nil, newError("domain address is not allows for listening quic")
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}
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tlsConfig := tls.ConfigFromStreamSettings(streamSettings)
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if tlsConfig == nil {
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return nil, newError("TLS config not enabled for QUIC")
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}
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conn, err := internet.ListenSystemPacket(context.Background(), &net.UDPAddr{
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IP: address.IP(),
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Port: int(port),
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}, streamSettings.SocketSettings)
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if err != nil {
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return nil, err
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}
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config := &quic.Config{
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Versions: []quic.VersionNumber{quic.VersionMilestone0_10_0},
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ConnectionIDLength: 12,
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KeepAlive: true,
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AcceptCookie: func(net.Addr, *quic.Cookie) bool { return true },
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}
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qListener, err := quic.Listen(conn, tlsConfig.GetTLSConfig(), config)
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if err != nil {
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return nil, err
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}
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listener := &Listener{
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listener: qListener,
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addConn: handler,
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}
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go listener.keepAccepting()
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return listener, nil
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}
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func init() {
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common.Must(internet.RegisterTransportListener(protocolName, Listen))
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}
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