v2ray-core/transport/internet/headers/utp/utp.go

39 lines
641 B
Go

package utp
import (
"context"
"v2ray.com/core/common"
"v2ray.com/core/common/dice"
"v2ray.com/core/common/serial"
)
type UTP struct {
header byte
extension byte
connectionId uint16
}
func (v *UTP) Size() int {
return 4
}
func (v *UTP) Write(b []byte) (int, error) {
serial.Uint16ToBytes(v.connectionId, b[:0])
b[2] = v.header
b[3] = v.extension
return 4, nil
}
func NewUTP(ctx context.Context, config interface{}) (interface{}, error) {
return &UTP{
header: 1,
extension: 0,
connectionId: dice.RandomUint16(),
}, nil
}
func init() {
common.Must(common.RegisterConfig((*Config)(nil), NewUTP))
}