mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-06-09 17:30:44 +00:00
98 lines
2.4 KiB
Go
98 lines
2.4 KiB
Go
// +build !confonly
|
|
|
|
package tcp
|
|
|
|
import (
|
|
"context"
|
|
gotls "crypto/tls"
|
|
"strings"
|
|
|
|
"v2ray.com/core/common"
|
|
"v2ray.com/core/common/net"
|
|
"v2ray.com/core/common/session"
|
|
"v2ray.com/core/transport/internet"
|
|
"v2ray.com/core/transport/internet/tls"
|
|
)
|
|
|
|
// Listener is an internet.Listener that listens for TCP connections.
|
|
type Listener struct {
|
|
listener net.Listener
|
|
tlsConfig *gotls.Config
|
|
authConfig internet.ConnectionAuthenticator
|
|
config *Config
|
|
addConn internet.ConnHandler
|
|
}
|
|
|
|
// ListenTCP creates a new Listener based on configurations.
|
|
func ListenTCP(ctx context.Context, address net.Address, port net.Port, streamSettings *internet.MemoryStreamConfig, handler internet.ConnHandler) (internet.Listener, error) {
|
|
listener, err := internet.ListenSystem(ctx, &net.TCPAddr{
|
|
IP: address.IP(),
|
|
Port: int(port),
|
|
}, streamSettings.SocketSettings)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
newError("listening TCP on ", address, ":", port).WriteToLog(session.ExportIDToError(ctx))
|
|
|
|
tcpSettings := streamSettings.ProtocolSettings.(*Config)
|
|
l := &Listener{
|
|
listener: listener,
|
|
config: tcpSettings,
|
|
addConn: handler,
|
|
}
|
|
|
|
if config := tls.ConfigFromStreamSettings(streamSettings); config != nil {
|
|
l.tlsConfig = config.GetTLSConfig(tls.WithNextProto("h2"))
|
|
}
|
|
|
|
if tcpSettings.HeaderSettings != nil {
|
|
headerConfig, err := tcpSettings.HeaderSettings.GetInstance()
|
|
if err != nil {
|
|
return nil, newError("invalid header settings").Base(err).AtError()
|
|
}
|
|
auth, err := internet.CreateConnectionAuthenticator(headerConfig)
|
|
if err != nil {
|
|
return nil, newError("invalid header settings.").Base(err).AtError()
|
|
}
|
|
l.authConfig = auth
|
|
}
|
|
go l.keepAccepting()
|
|
return l, nil
|
|
}
|
|
|
|
func (v *Listener) keepAccepting() {
|
|
for {
|
|
conn, err := v.listener.Accept()
|
|
if err != nil {
|
|
if strings.Contains(err.Error(), "closed") {
|
|
break
|
|
}
|
|
newError("failed to accepted raw connections").Base(err).AtWarning().WriteToLog()
|
|
continue
|
|
}
|
|
|
|
if v.tlsConfig != nil {
|
|
conn = tls.Server(conn, v.tlsConfig)
|
|
}
|
|
if v.authConfig != nil {
|
|
conn = v.authConfig.Server(conn)
|
|
}
|
|
|
|
v.addConn(internet.Connection(conn))
|
|
}
|
|
}
|
|
|
|
// Addr implements internet.Listener.Addr.
|
|
func (v *Listener) Addr() net.Addr {
|
|
return v.listener.Addr()
|
|
}
|
|
|
|
// Close implements internet.Listener.Close.
|
|
func (v *Listener) Close() error {
|
|
return v.listener.Close()
|
|
}
|
|
|
|
func init() {
|
|
common.Must(internet.RegisterTransportListener(protocolName, ListenTCP))
|
|
}
|