func formSignalingPacket()

in cmd/ziffy/node/packets.go [28:59]

• 32 lines of code
• 1 McCabe index (conditional complexity)

func formSignalingPacket(hop int, routeIndex int) *ptp.Signaling {
	l := binary.Size(ptp.Header{}) + binary.Size(ptp.PortIdentity{}) + binary.Size(ptp.RequestUnicastTransmissionTLV{})
	return &ptp.Signaling{
		Header: ptp.Header{
			SdoIDAndMsgType: ptp.NewSdoIDAndMsgType(ptp.MessageSignaling, 0),
			Version:         ptp.Version,
			SequenceID:      uint16(hop),
			MessageLength:   uint16(l),
			FlagField:       ptp.FlagUnicast,
			SourcePortIdentity: ptp.PortIdentity{
				PortNumber: uint16(routeIndex),
			},
			ControlField:       ZiffyHexa, //identifier for zi(0xff)y
			LogMessageInterval: 0x7f,
		},
		TargetPortIdentity: ptp.PortIdentity{
			PortNumber:    0xffff,
			ClockIdentity: 0xffffffffffffffff,
		},
		TLVs: []ptp.TLV{
			&ptp.RequestUnicastTransmissionTLV{
				TLVHead: ptp.TLVHead{
					TLVType:     ptp.TLVRequestUnicastTransmission,
					LengthField: uint16(binary.Size(ptp.RequestUnicastTransmissionTLV{}) - binary.Size(ptp.TLVHead{})),
				},
				MsgTypeAndReserved:    ptp.NewUnicastMsgTypeAndFlags(ptp.MessageSync, 0),
				LogInterMessagePeriod: 1,
				DurationField:         0, // seconds
			},
		},
	}
}