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https://github.com/v2fly/v2ray-core.git
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41 lines
718 B
Go
41 lines
718 B
Go
package utp
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import (
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"context"
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"v2ray.com/core/common"
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"v2ray.com/core/common/dice"
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"v2ray.com/core/common/serial"
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)
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type UTP struct {
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header byte
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extension byte
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connectionId uint16
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}
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func (*UTP) Size() int32 {
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return 4
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}
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// Write implements io.Writer.
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func (u *UTP) Write(b []byte) (int, error) {
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serial.Uint16ToBytes(u.connectionId, b[:0])
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b[2] = u.header
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b[3] = u.extension
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return 4, nil
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}
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// New creates a new UTP header for the given config.
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func New(ctx context.Context, config interface{}) (interface{}, error) {
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return &UTP{
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header: 1,
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extension: 0,
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connectionId: dice.RollUint16(),
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}, nil
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}
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func init() {
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common.Must(common.RegisterConfig((*Config)(nil), New))
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}
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