package internet import ( "crypto/tls" "errors" "net" v2net "github.com/v2ray/v2ray-core/common/net" v2tls "github.com/v2ray/v2ray-core/transport/internet/tls" ) var ( ErrUnsupportedStreamType = errors.New("Unsupported stream type.") ) type Dialer func(src v2net.Address, dest v2net.Destination) (Connection, error) var ( TCPDialer Dialer KCPDialer Dialer RawTCPDialer Dialer UDPDialer Dialer ) func Dial(src v2net.Address, dest v2net.Destination, settings *StreamSettings) (Connection, error) { var connection Connection var err error if dest.IsTCP() { switch { case settings.IsCapableOf(StreamConnectionTypeTCP): connection, err = TCPDialer(src, dest) case settings.IsCapableOf(StreamConnectionTypeKCP): connection, err = KCPDialer(src, dest) case settings.IsCapableOf(StreamConnectionTypeRawTCP): connection, err = RawTCPDialer(src, dest) default: return nil, ErrUnsupportedStreamType } if err != nil { return nil, err } if settings.Security == StreamSecurityTypeNone { return connection, nil } config := settings.TLSSettings.GetTLSConfig() if dest.Address().IsDomain() { config.ServerName = dest.Address().Domain() } tlsConn := tls.Client(connection, config) return v2tls.NewConnection(tlsConn), nil } return UDPDialer(src, dest) } func DialToDest(src v2net.Address, dest v2net.Destination) (net.Conn, error) { return effectiveSystemDialer.Dial(src, dest) }