func (s *networkServerRPC) PrepareActivation(ctx context.Context, activation *broker.DeduplicatedDeviceActivationRequest) (*broker.DeduplicatedDeviceActivationRequest, error) {
if err := s.ValidateContext(ctx); err != nil {
return nil, err
}
if err := activation.Validate(); err != nil {
return nil, errors.Wrap(err, "Invalid Activation Request")
}
res, err := s.networkServer.HandlePrepareActivation(activation)
if err != nil {
return nil, err
}
return res, nil
}
func (h *handlerRPC) Activate(ctx context.Context, activation *pb_broker.DeduplicatedDeviceActivationRequest) (*pb.DeviceActivationResponse, error) {
_, err := h.handler.ValidateNetworkContext(ctx)
if err != nil {
return nil, err
}
if err := activation.Validate(); err != nil {
return nil, errors.Wrap(err, "Invalid Activation Request")
}
res, err := h.handler.HandleActivation(activation)
if err != nil {
return nil, err
}
return res, nil
}
func (n *networkServer) HandlePrepareActivation(activation *pb_broker.DeduplicatedDeviceActivationRequest) (*pb_broker.DeduplicatedDeviceActivationRequest, error) {
if activation.AppEui == nil || activation.DevEui == nil {
return nil, errors.NewErrInvalidArgument("Activation", "missing AppEUI or DevEUI")
}
dev, err := n.devices.Get(*activation.AppEui, *activation.DevEui)
if err != nil {
return nil, err
}
activation.AppId = dev.AppID
activation.DevId = dev.DevID
// Get activation constraints (for DevAddr prefix selection)
activationConstraints := strings.Split(dev.Options.ActivationConstraints, ",")
if len(activationConstraints) == 1 && activationConstraints[0] == "" {
activationConstraints = []string{}
}
activationConstraints = append(activationConstraints, "otaa")
// Build activation metadata if not present
if meta := activation.GetActivationMetadata(); meta == nil {
activation.ActivationMetadata = &pb_protocol.ActivationMetadata{}
}
// Build lorawan metadata if not present
if lorawan := activation.ActivationMetadata.GetLorawan(); lorawan == nil {
return nil, errors.NewErrInvalidArgument("Activation", "missing LoRaWAN metadata")
}
// Build response template if not present
if pld := activation.GetResponseTemplate(); pld == nil {
return nil, errors.NewErrInvalidArgument("Activation", "missing response template")
}
lorawanMeta := activation.ActivationMetadata.GetLorawan()
// Get a random device address
devAddr, err := n.getDevAddr(activationConstraints...)
if err != nil {
return nil, err
}
// Set the DevAddr in the Activation Metadata
lorawanMeta.DevAddr = &devAddr
// Build JoinAccept Payload
phy := lorawan.PHYPayload{
MHDR: lorawan.MHDR{
MType: lorawan.JoinAccept,
Major: lorawan.LoRaWANR1,
},
MACPayload: &lorawan.JoinAcceptPayload{
NetID: n.netID,
DLSettings: lorawan.DLSettings{RX2DataRate: uint8(lorawanMeta.Rx2Dr), RX1DROffset: uint8(lorawanMeta.Rx1DrOffset)},
RXDelay: uint8(lorawanMeta.RxDelay),
DevAddr: lorawan.DevAddr(devAddr),
},
}
if lorawanMeta.CfList != nil {
var cfList lorawan.CFList
for i, cfListItem := range lorawanMeta.CfList.Freq {
cfList[i] = cfListItem
}
phy.MACPayload.(*lorawan.JoinAcceptPayload).CFList = &cfList
}
// Set the Payload
phyBytes, err := phy.MarshalBinary()
if err != nil {
return nil, err
}
activation.ResponseTemplate.Payload = phyBytes
return activation, nil
}