func (h *handlerManager) DeleteDevice(ctx context.Context, in *pb.DeviceIdentifier) (*empty.Empty, error) {
if err := in.Validate(); err != nil {
return nil, errors.Wrap(err, "Invalid Device Identifier")
}
ctx, claims, err := h.validateTTNAuthAppContext(ctx, in.AppId)
if err != nil {
return nil, err
}
if !claims.AppRight(in.AppId, rights.Devices) {
return nil, errors.NewErrPermissionDenied(fmt.Sprintf(`No "devices" rights to application "%s"`, in.AppId))
}
if _, err := h.handler.applications.Get(in.AppId); err != nil {
return nil, errors.Wrap(err, "Application not registered to this Handler")
}
dev, err := h.handler.devices.Get(in.AppId, in.DevId)
if err != nil {
return nil, err
}
_, err = h.deviceManager.DeleteDevice(ctx, &pb_lorawan.DeviceIdentifier{AppEui: &dev.AppEUI, DevEui: &dev.DevEUI})
if err != nil && errors.GetErrType(errors.FromGRPCError(err)) != errors.NotFound {
return nil, errors.Wrap(errors.FromGRPCError(err), "Broker did not delete device")
}
err = h.handler.devices.Delete(in.AppId, in.DevId)
if err != nil {
return nil, err
}
return &empty.Empty{}, nil
}
func (cl *gatewayClient) monitorUplink() {
var retries int
newStream:
for {
ctx, cancel := context.WithCancel(cl.Context())
cl.uplink.Lock()
cl.uplink.cancel = cancel
cl.uplink.Unlock()
stream, err := cl.client.client.GatewayUplink(ctx)
if err != nil {
cl.Ctx.WithError(errors.FromGRPCError(err)).Warn("Failed to open new monitor uplink stream")
retries++
time.Sleep(backoff.Backoff(retries))
continue
}
retries = 0
cl.Ctx.Debug("Opened new monitor uplink stream")
// The actual stream
go func() {
for {
select {
case <-ctx.Done():
return
case uplink, ok := <-cl.uplink.ch:
if ok {
stream.Send(uplink)
cl.Ctx.Debug("Sent uplink to monitor")
}
}
}
}()
msg := new(empty.Empty)
for {
if err := stream.RecvMsg(&msg); err != nil {
cl.Ctx.WithError(errors.FromGRPCError(err)).Warn("Received error on monitor uplink stream, closing...")
stream.CloseSend()
cl.Ctx.Debug("Closed monitor uplink stream")
cl.uplink.Lock()
cl.uplink.cancel()
cl.uplink.cancel = nil
cl.uplink.Unlock()
retries++
time.Sleep(backoff.Backoff(retries))
continue newStream
}
}
}
}
func (b *brokerManager) GetPrefixes(ctx context.Context, in *lorawan.PrefixesRequest) (*lorawan.PrefixesResponse, error) {
res, err := b.devAddrManager.GetPrefixes(ctx, in)
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "NetworkServer did not return prefixes")
}
return res, nil
}
// GetHandlerManager gets a new HandlerManager for ttnctl
func GetHandlerManager(ctx log.Interface, appID string) (*grpc.ClientConn, *handler.ManagerClient) {
ctx.WithField("Handler", viper.GetString("handler-id")).Info("Discovering Handler...")
dscConn, client := GetDiscovery(ctx)
defer dscConn.Close()
handlerAnnouncement, err := client.Get(GetContext(ctx), &discovery.GetRequest{
ServiceName: "handler",
Id: viper.GetString("handler-id"),
})
if err != nil {
ctx.WithError(errors.FromGRPCError(err)).Fatal("Could not find Handler")
}
token := TokenForScope(ctx, scope.App(appID))
ctx.WithField("Handler", handlerAnnouncement.NetAddress).Info("Connecting with Handler...")
hdlConn, err := handlerAnnouncement.Dial()
if err != nil {
ctx.WithError(err).Fatal("Could not connect to Handler")
}
managerClient, err := handler.NewManagerClient(hdlConn, token)
if err != nil {
ctx.WithError(err).Fatal("Could not create Handler Manager")
}
return hdlConn, managerClient
}
// Discover is used to discover another component
func (c *Component) Discover(serviceName, id string) (*pb_discovery.Announcement, error) {
res, err := c.Discovery.Get(serviceName, id)
if err != nil {
return nil, errors.Wrapf(errors.FromGRPCError(err), "Failed to discover %s/%s", serviceName, id)
}
return res, nil
}
func (h *handlerManager) GetDevAddr(ctx context.Context, in *pb_lorawan.DevAddrRequest) (*pb_lorawan.DevAddrResponse, error) {
res, err := h.devAddrManager.GetDevAddr(ctx, in)
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "Broker did not return DevAddr")
}
return res, nil
}
func (h *handlerManager) DeleteApplication(ctx context.Context, in *pb.ApplicationIdentifier) (*empty.Empty, error) {
if err := in.Validate(); err != nil {
return nil, errors.Wrap(err, "Invalid Application Identifier")
}
ctx, claims, err := h.validateTTNAuthAppContext(ctx, in.AppId)
if err != nil {
return nil, err
}
if !claims.AppRight(in.AppId, rights.AppSettings) {
return nil, errors.NewErrPermissionDenied(`No "settings" rights to application`)
}
_, err = h.handler.applications.Get(in.AppId)
if err != nil {
return nil, err
}
// Get and delete all devices for this application
devices, err := h.handler.devices.ListForApp(in.AppId)
if err != nil {
return nil, err
}
for _, dev := range devices {
_, err = h.deviceManager.DeleteDevice(ctx, &pb_lorawan.DeviceIdentifier{AppEui: &dev.AppEUI, DevEui: &dev.DevEUI})
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "Broker did not delete device")
}
err = h.handler.devices.Delete(dev.AppID, dev.DevID)
if err != nil {
return nil, err
}
}
// Delete the Application
err = h.handler.applications.Delete(in.AppId)
if err != nil {
return nil, err
}
token, _ := api.TokenFromContext(ctx)
err = h.handler.Discovery.RemoveAppID(in.AppId, token)
if err != nil {
h.handler.Ctx.WithField("AppID", in.AppId).WithError(errors.FromGRPCError(err)).Warn("Could not unregister Application from Discovery")
}
return &empty.Empty{}, nil
}
func (b *brokerManager) DeleteDevice(ctx context.Context, in *lorawan.DeviceIdentifier) (*empty.Empty, error) {
if _, err := b.validateClient(ctx); err != nil {
return nil, err
}
res, err := b.deviceManager.DeleteDevice(ctx, in)
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "NetworkServer did not delete device")
}
return res, nil
}
// Announce the component to TTN discovery
func (c *Component) Announce() error {
if c.Identity.Id == "" {
return errors.NewErrInvalidArgument("Component ID", "can not be empty")
}
err := c.Discovery.Announce(c.AccessToken)
if err != nil {
return errors.Wrapf(errors.FromGRPCError(err), "Failed to announce this component to TTN discovery: %s", err.Error())
}
c.Ctx.Info("ttn: Announced to TTN discovery")
return nil
}
// GetRouter starts a connection with the router
func GetRouter(ctx log.Interface) (*grpc.ClientConn, router.RouterClient) {
ctx.Info("Discovering Router...")
dscConn, client := GetDiscovery(ctx)
defer dscConn.Close()
routerAnnouncement, err := client.Get(GetContext(ctx), &discovery.GetRequest{
ServiceName: "router",
Id: viper.GetString("router-id"),
})
if err != nil {
ctx.WithError(errors.FromGRPCError(err)).Fatal("Could not get Router from Discovery")
}
ctx.Info("Connecting with Router...")
rtrConn, err := routerAnnouncement.Dial()
ctx.Info("Connected to Router")
rtrClient := router.NewRouterClient(rtrConn)
return rtrConn, rtrClient
}
func (b *broker) HandleDownlink(downlink *pb.DownlinkMessage) error {
ctx := b.Ctx.WithFields(log.Fields{
"DevEUI": *downlink.DevEui,
"AppEUI": *downlink.AppEui,
})
var err error
start := time.Now()
defer func() {
if err != nil {
ctx.WithError(err).Warn("Could not handle downlink")
} else {
ctx.WithField("Duration", time.Now().Sub(start)).Info("Handled downlink")
}
}()
b.status.downlink.Mark(1)
downlink, err = b.ns.Downlink(b.Component.GetContext(b.nsToken), downlink)
if err != nil {
return errors.Wrap(errors.FromGRPCError(err), "NetworkServer did not handle downlink")
}
var routerID string
if id := strings.Split(downlink.DownlinkOption.Identifier, ":"); len(id) == 2 {
routerID = id[0]
} else {
return errors.NewErrInvalidArgument("DownlinkOption Identifier", "invalid format")
}
ctx = ctx.WithField("RouterID", routerID)
var router chan<- *pb.DownlinkMessage
router, err = b.getRouter(routerID)
if err != nil {
return err
}
router <- downlink
return nil
}
func (b *broker) checkPrefixAnnouncements() error {
// Get prefixes from NS
nsPrefixes := map[types.DevAddrPrefix]string{}
devAddrClient := pb_lorawan.NewDevAddrManagerClient(b.nsConn)
resp, err := devAddrClient.GetPrefixes(b.GetContext(""), &pb_lorawan.PrefixesRequest{})
if err != nil {
return errors.Wrap(errors.FromGRPCError(err), "NetworkServer did not return prefixes")
}
for _, mapping := range resp.Prefixes {
prefix, err := types.ParseDevAddrPrefix(mapping.Prefix)
if err != nil {
continue
}
nsPrefixes[prefix] = strings.Join(mapping.Usage, ",")
}
// Get self from Discovery
self, err := b.Component.Discover("broker", b.Component.Identity.Id)
if err != nil {
return err
}
announcedPrefixes := self.DevAddrPrefixes()
nextPrefix:
for nsPrefix, usage := range nsPrefixes {
if !strings.Contains(usage, "world") && !strings.Contains(usage, "local") {
continue
}
for _, announcedPrefix := range announcedPrefixes {
if nsPrefix.DevAddr == announcedPrefix.DevAddr && nsPrefix.Length == announcedPrefix.Length {
b.Ctx.WithField("NSPrefix", nsPrefix).WithField("DPrefix", announcedPrefix).Info("Prefix found in Discovery")
continue nextPrefix
}
}
b.Ctx.WithField("Prefix", nsPrefix).Warn("Prefix not announced in Discovery")
}
return nil
}
func (cl *Client) open() (err error) {
addr := cl.addr
ctx := cl.Ctx.WithField("addr", addr)
defer func() {
if err != nil {
ctx.Warn("Failed to open monitor connection")
} else {
ctx.Info("Monitor connection opened")
}
}()
ctx.Debug("Opening monitor connection...")
cl.conn, err = api.Dial(addr)
if err != nil {
ctx.WithError(errors.FromGRPCError(err)).Warn("Failed to establish connection to gRPC service")
return err
}
cl.client = NewMonitorClient(cl.conn)
return nil
}
func (h *handlerManager) GetDevice(ctx context.Context, in *pb.DeviceIdentifier) (*pb.Device, error) {
if err := in.Validate(); err != nil {
return nil, errors.Wrap(err, "Invalid Device Identifier")
}
ctx, claims, err := h.validateTTNAuthAppContext(ctx, in.AppId)
if err != nil {
return nil, err
}
if !claims.AppRight(in.AppId, rights.Devices) {
return nil, errors.NewErrPermissionDenied(fmt.Sprintf(`No "devices" rights to application "%s"`, in.AppId))
}
if _, err := h.handler.applications.Get(in.AppId); err != nil {
return nil, errors.Wrap(err, "Application not registered to this Handler")
}
dev, err := h.handler.devices.Get(in.AppId, in.DevId)
if err != nil {
return nil, err
}
pbDev := &pb.Device{
AppId: dev.AppID,
DevId: dev.DevID,
Device: &pb.Device_LorawanDevice{LorawanDevice: &pb_lorawan.Device{
AppId: dev.AppID,
AppEui: &dev.AppEUI,
DevId: dev.DevID,
DevEui: &dev.DevEUI,
DevAddr: &dev.DevAddr,
NwkSKey: &dev.NwkSKey,
AppSKey: &dev.AppSKey,
AppKey: &dev.AppKey,
DisableFCntCheck: dev.Options.DisableFCntCheck,
Uses32BitFCnt: dev.Options.Uses32BitFCnt,
ActivationConstraints: dev.Options.ActivationConstraints,
}},
}
nsDev, err := h.deviceManager.GetDevice(ctx, &pb_lorawan.DeviceIdentifier{
AppEui: &dev.AppEUI,
DevEui: &dev.DevEUI,
})
if errors.GetErrType(errors.FromGRPCError(err)) == errors.NotFound {
// Re-register the device in the Broker (NetworkServer)
h.handler.Ctx.WithFields(log.Fields{
"AppID": dev.AppID,
"DevID": dev.DevID,
"AppEUI": dev.AppEUI,
"DevEUI": dev.DevEUI,
}).Warn("Re-registering missing device to Broker")
nsDev = dev.GetLoRaWAN()
_, err = h.deviceManager.SetDevice(ctx, nsDev)
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "Could not re-register missing device to Broker")
}
} else if err != nil {
return pbDev, errors.Wrap(errors.FromGRPCError(err), "Broker did not return device")
}
pbDev.GetLorawanDevice().FCntUp = nsDev.FCntUp
pbDev.GetLorawanDevice().FCntDown = nsDev.FCntDown
pbDev.GetLorawanDevice().LastSeen = nsDev.LastSeen
return pbDev, nil
}
case "broker":
ctx.Info("Discovering brokers and their prefixes...")
case "handler":
ctx.Info("Discovering handlers and their apps...")
default:
ctx.Fatalf("Service type %s unknown", serviceType)
}
conn, client := util.GetDiscovery(ctx)
defer conn.Close()
res, err := client.GetAll(util.GetContext(ctx), &discovery.GetServiceRequest{
ServiceName: serviceType,
})
if err != nil {
ctx.WithError(errors.FromGRPCError(err)).Fatalf("Could not get %ss", serviceType)
}
ctx.Infof("Discovered %d %ss", len(res.Services), serviceType)
fmt.Printf(serviceFmt, "ID", "ADDRESS", "VERSION", "PUBLIC")
fmt.Printf(serviceFmt, "==", "=======", "=======", "======")
fmt.Println()
for _, service := range res.Services {
fmt.Printf(serviceFmt, service.Id, crop(service.NetAddress, 36), crop(service.ServiceVersion, 20), fmt.Sprintf("%v", service.Public))
if showMetadata, _ := cmd.Flags().GetBool("metadata"); showMetadata {
switch serviceType {
case "broker":
fmt.Println(" DevAddr Prefixes:")
for _, prefix := range service.DevAddrPrefixes() {
min := types.DevAddr{0x00, 0x00, 0x00, 0x00}.WithPrefix(prefix)
func (b *broker) HandleUplink(uplink *pb.UplinkMessage) (err error) {
ctx := b.Ctx.WithField("GatewayID", uplink.GatewayMetadata.GatewayId)
start := time.Now()
defer func() {
if err != nil {
ctx.WithError(err).Warn("Could not handle uplink")
} else {
ctx.WithField("Duration", time.Now().Sub(start)).Info("Handled uplink")
}
}()
time := time.Now()
b.status.uplink.Mark(1)
// De-duplicate uplink messages
duplicates := b.deduplicateUplink(uplink)
if len(duplicates) == 0 {
return nil
}
b.status.uplinkUnique.Mark(1)
ctx = ctx.WithField("Duplicates", len(duplicates))
base := duplicates[0]
if base.ProtocolMetadata.GetLorawan() == nil {
return errors.NewErrInvalidArgument("Uplink", "does not contain LoRaWAN metadata")
}
// LoRaWAN: Unmarshal
var phyPayload lorawan.PHYPayload
err = phyPayload.UnmarshalBinary(base.Payload)
if err != nil {
return err
}
macPayload, ok := phyPayload.MACPayload.(*lorawan.MACPayload)
if !ok {
return errors.NewErrInvalidArgument("Uplink", "does not contain a MAC payload")
}
// Request devices from NS
devAddr := types.DevAddr(macPayload.FHDR.DevAddr)
ctx = ctx.WithFields(log.Fields{
"DevAddr": devAddr,
"FCnt": macPayload.FHDR.FCnt,
})
var getDevicesResp *networkserver.DevicesResponse
getDevicesResp, err = b.ns.GetDevices(b.Component.GetContext(b.nsToken), &networkserver.DevicesRequest{
DevAddr: &devAddr,
FCnt: macPayload.FHDR.FCnt,
})
if err != nil {
return errors.Wrap(errors.FromGRPCError(err), "NetworkServer did not return devices")
}
b.status.deduplication.Update(int64(len(getDevicesResp.Results)))
if len(getDevicesResp.Results) == 0 {
return errors.NewErrNotFound(fmt.Sprintf("Device with DevAddr %s and FCnt <= %d", devAddr, macPayload.FHDR.FCnt))
}
ctx = ctx.WithField("DevAddrResults", len(getDevicesResp.Results))
// Sort by FCntUp to optimize the number of MIC checks
sort.Sort(ByFCntUp(getDevicesResp.Results))
// Find AppEUI/DevEUI through MIC check
var device *pb_lorawan.Device
var micChecks int
var originalFCnt uint32
for _, candidate := range getDevicesResp.Results {
nwkSKey := lorawan.AES128Key(*candidate.NwkSKey)
// First check with the 16 bit counter
micChecks++
ok, err = phyPayload.ValidateMIC(nwkSKey)
if err != nil {
return err
}
if ok {
device = candidate
break
}
originalFCnt = macPayload.FHDR.FCnt
if candidate.Uses32BitFCnt {
macPayload.FHDR.FCnt = fcnt.GetFull(candidate.FCntUp, uint16(originalFCnt))
// If 32 bit counter has different value, perform another MIC check
if macPayload.FHDR.FCnt != originalFCnt {
micChecks++
ok, err = phyPayload.ValidateMIC(nwkSKey)
if err != nil {
return err
}
if ok {
device = candidate
break
}
}
}
return errors.NewErrNotFound("device that validates MIC")
}
ctx = ctx.WithFields(log.Fields{
"MICChecks": micChecks,
"DevEUI": device.DevEui,
"AppEUI": device.AppEui,
"AppID": device.AppId,
"DevID": device.DevId,
"FCnt": originalFCnt,
})
if macPayload.FHDR.FCnt != originalFCnt {
ctx = ctx.WithField("RealFCnt", macPayload.FHDR.FCnt)
}
if device.DisableFCntCheck {
// TODO: Add warning to message?
} else if device.FCntUp == 0 {
} else if macPayload.FHDR.FCnt <= device.FCntUp || macPayload.FHDR.FCnt-device.FCntUp > maxFCntGap {
// Replay attack or FCnt gap too big
return errors.NewErrNotFound("device with matching FCnt")
}
// Add FCnt to Metadata (because it's not marshaled in lorawan payload)
base.ProtocolMetadata.GetLorawan().FCnt = macPayload.FHDR.FCnt
// Collect GatewayMetadata and DownlinkOptions
var gatewayMetadata []*gateway.RxMetadata
var downlinkOptions []*pb.DownlinkOption
var downlinkMessage *pb.DownlinkMessage
for _, duplicate := range duplicates {
gatewayMetadata = append(gatewayMetadata, duplicate.GatewayMetadata)
downlinkOptions = append(downlinkOptions, duplicate.DownlinkOptions...)
}
// Select best DownlinkOption
if len(downlinkOptions) > 0 {
downlinkMessage = &pb.DownlinkMessage{
DevEui: device.DevEui,
AppEui: device.AppEui,
AppId: device.AppId,
DevId: device.DevId,
DownlinkOption: selectBestDownlink(downlinkOptions),
}
}
// Build Uplink
deduplicatedUplink := &pb.DeduplicatedUplinkMessage{
Payload: base.Payload,
DevEui: device.DevEui,
DevId: device.DevId,
AppEui: device.AppEui,
AppId: device.AppId,
ProtocolMetadata: base.ProtocolMetadata,
GatewayMetadata: gatewayMetadata,
ServerTime: time.UnixNano(),
ResponseTemplate: downlinkMessage,
}
// Pass Uplink through NS
deduplicatedUplink, err = b.ns.Uplink(b.Component.GetContext(b.nsToken), deduplicatedUplink)
if err != nil {
return errors.Wrap(errors.FromGRPCError(err), "NetworkServer did not handle uplink")
}
var announcements []*pb_discovery.Announcement
announcements, err = b.Discovery.GetAllHandlersForAppID(device.AppId)
if err != nil {
return err
}
if len(announcements) == 0 {
return errors.NewErrNotFound(fmt.Sprintf("Handler for AppID %s", device.AppId))
}
if len(announcements) > 1 {
return errors.NewErrInternal(fmt.Sprintf("Multiple Handlers for AppID %s", device.AppId))
}
var handler chan<- *pb.DeduplicatedUplinkMessage
handler, err = b.getHandlerUplink(announcements[0].Id)
if err != nil {
return err
}
handler <- deduplicatedUplink
return nil
}
func (h *handlerManager) SetDevice(ctx context.Context, in *pb.Device) (*empty.Empty, error) {
if err := in.Validate(); err != nil {
return nil, errors.Wrap(err, "Invalid Device")
}
ctx, claims, err := h.validateTTNAuthAppContext(ctx, in.AppId)
if err != nil {
return nil, err
}
if !claims.AppRight(in.AppId, rights.Devices) {
return nil, errors.NewErrPermissionDenied(fmt.Sprintf(`No "devices" rights to application "%s"`, in.AppId))
}
if _, err := h.handler.applications.Get(in.AppId); err != nil {
return nil, errors.Wrap(err, "Application not registered to this Handler")
}
dev, err := h.handler.devices.Get(in.AppId, in.DevId)
if err != nil && errors.GetErrType(err) != errors.NotFound {
return nil, err
}
lorawan := in.GetLorawanDevice()
if lorawan == nil {
return nil, errors.NewErrInvalidArgument("Device", "No LoRaWAN Device")
}
if dev != nil { // When this is an update
if dev.AppEUI != *lorawan.AppEui || dev.DevEUI != *lorawan.DevEui {
// If the AppEUI or DevEUI is changed, we should remove the device from the NetworkServer and re-add it later
_, err = h.deviceManager.DeleteDevice(ctx, &pb_lorawan.DeviceIdentifier{
AppEui: &dev.AppEUI,
DevEui: &dev.DevEUI,
})
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "Broker did not delete device")
}
}
dev.StartUpdate()
} else { // When this is a create
existingDevices, err := h.handler.devices.ListForApp(in.AppId)
if err != nil {
return nil, err
}
for _, existingDevice := range existingDevices {
if existingDevice.AppEUI == *lorawan.AppEui && existingDevice.DevEUI == *lorawan.DevEui {
return nil, errors.NewErrAlreadyExists("Device with AppEUI and DevEUI")
}
}
dev = new(device.Device)
}
dev.AppID = in.AppId
dev.AppEUI = *lorawan.AppEui
dev.DevID = in.DevId
dev.DevEUI = *lorawan.DevEui
dev.Options = device.Options{
DisableFCntCheck: lorawan.DisableFCntCheck,
Uses32BitFCnt: lorawan.Uses32BitFCnt,
ActivationConstraints: lorawan.ActivationConstraints,
}
if dev.Options.ActivationConstraints == "" {
dev.Options.ActivationConstraints = "local"
}
if lorawan.DevAddr != nil {
dev.DevAddr = *lorawan.DevAddr
}
if lorawan.NwkSKey != nil {
dev.NwkSKey = *lorawan.NwkSKey
}
if lorawan.AppSKey != nil {
dev.AppSKey = *lorawan.AppSKey
}
if lorawan.AppKey != nil {
if dev.AppKey != *lorawan.AppKey { // When the AppKey of an existing device is changed
dev.UsedAppNonces = []device.AppNonce{}
dev.UsedDevNonces = []device.DevNonce{}
}
dev.AppKey = *lorawan.AppKey
}
// Update the device in the Broker (NetworkServer)
nsUpdated := dev.GetLoRaWAN()
nsUpdated.FCntUp = lorawan.FCntUp
nsUpdated.FCntDown = lorawan.FCntDown
_, err = h.deviceManager.SetDevice(ctx, nsUpdated)
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "Broker did not set device")
}
err = h.handler.devices.Set(dev)
if err != nil {
return nil, err
}
return &empty.Empty{}, nil
}
}
serviceID := args[1]
if !api.ValidID(serviceID) {
ctx.Fatalf("Service ID %s invalid", serviceID)
}
dscConn, client := util.GetDiscovery(ctx)
defer dscConn.Close()
res, err := client.Get(util.GetContext(ctx), &discovery.GetRequest{
ServiceName: serviceType,
Id: serviceID,
})
if err != nil {
ctx.WithError(errors.FromGRPCError(err)).Fatalf("Could not get %s %s", serviceType, serviceID)
}
conn, err := res.Dial()
if err != nil {
ctx.WithError(errors.FromGRPCError(err)).Fatalf("Could not dial %s %s", serviceType, serviceID)
}
defer conn.Close()
start := time.Now()
ok, err := health.Check(conn)
if err != nil {
ctx.WithError(errors.FromGRPCError(err)).Fatalf("Could not check %s %s", serviceType, serviceID)
}
ctx = ctx.WithField("Duration", time.Now().Sub(start))
func (b *broker) HandleActivation(activation *pb.DeviceActivationRequest) (res *pb.DeviceActivationResponse, err error) {
ctx := b.Ctx.WithFields(log.Fields{
"GatewayID": activation.GatewayMetadata.GatewayId,
"AppEUI": *activation.AppEui,
"DevEUI": *activation.DevEui,
})
start := time.Now()
defer func() {
if err != nil {
ctx.WithError(err).Warn("Could not handle activation")
} else {
ctx.WithField("Duration", time.Now().Sub(start)).Info("Handled activation")
}
}()
time := time.Now()
b.status.activations.Mark(1)
// De-duplicate uplink messages
duplicates := b.deduplicateActivation(activation)
if len(duplicates) == 0 {
return nil, errDuplicateActivation
}
b.status.activationsUnique.Mark(1)
base := duplicates[0]
// Collect GatewayMetadata and DownlinkOptions
var gatewayMetadata []*gateway.RxMetadata
var downlinkOptions []*pb.DownlinkOption
var deviceActivationResponse *pb.DeviceActivationResponse
for _, duplicate := range duplicates {
gatewayMetadata = append(gatewayMetadata, duplicate.GatewayMetadata)
downlinkOptions = append(downlinkOptions, duplicate.DownlinkOptions...)
}
// Select best DownlinkOption
if len(downlinkOptions) > 0 {
deviceActivationResponse = &pb.DeviceActivationResponse{
DownlinkOption: selectBestDownlink(downlinkOptions),
}
}
// Build Uplink
deduplicatedActivationRequest := &pb.DeduplicatedDeviceActivationRequest{
Payload: base.Payload,
DevEui: base.DevEui,
AppEui: base.AppEui,
ProtocolMetadata: base.ProtocolMetadata,
GatewayMetadata: gatewayMetadata,
ActivationMetadata: base.ActivationMetadata,
ServerTime: time.UnixNano(),
ResponseTemplate: deviceActivationResponse,
}
// Send Activate to NS
deduplicatedActivationRequest, err = b.ns.PrepareActivation(b.Component.GetContext(b.nsToken), deduplicatedActivationRequest)
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "NetworkServer refused to prepare activation")
}
ctx = ctx.WithFields(log.Fields{
"AppID": deduplicatedActivationRequest.AppId,
"DevID": deduplicatedActivationRequest.DevId,
})
// Find Handler (based on AppEUI)
var announcements []*pb_discovery.Announcement
announcements, err = b.Discovery.GetAllHandlersForAppID(deduplicatedActivationRequest.AppId)
if err != nil {
return nil, err
}
if len(announcements) == 0 {
return nil, errors.NewErrNotFound(fmt.Sprintf("Handler for AppID %s", deduplicatedActivationRequest.AppId))
}
ctx = ctx.WithField("NumHandlers", len(announcements))
// LoRaWAN: Unmarshal and prepare version without MIC
var phyPayload lorawan.PHYPayload
err = phyPayload.UnmarshalBinary(deduplicatedActivationRequest.Payload)
if err != nil {
return nil, err
}
correctMIC := phyPayload.MIC
phyPayload.MIC = [4]byte{0, 0, 0, 0}
phyPayloadWithoutMIC, err := phyPayload.MarshalBinary()
if err != nil {
return nil, err
}
// Build Challenge
challenge := &pb.ActivationChallengeRequest{
Payload: phyPayloadWithoutMIC,
AppId: deduplicatedActivationRequest.AppId,
DevId: deduplicatedActivationRequest.DevId,
AppEui: deduplicatedActivationRequest.AppEui,
DevEui: deduplicatedActivationRequest.DevEui,
}
// Send Challenge to all handlers and collect responses
var wg sync.WaitGroup
responses := make(chan *challengeResponseWithHandler, len(announcements))
for _, announcement := range announcements {
conn, err := b.getHandlerConn(announcement.Id)
if err != nil {
ctx.WithError(err).Warn("Could not dial handler for Activation")
continue
}
client := pb_handler.NewHandlerClient(conn)
// Do async request
wg.Add(1)
go func(announcement *pb_discovery.Announcement) {
res, err := client.ActivationChallenge(b.Component.GetContext(""), challenge)
if err == nil && res != nil {
responses <- &challengeResponseWithHandler{
handler: announcement,
client: client,
response: res,
}
}
wg.Done()
}(announcement)
}
// Make sure to close channel when all requests are done
go func() {
wg.Wait()
close(responses)
}()
var gotFirst bool
var joinHandler *pb_discovery.Announcement
var joinHandlerClient pb_handler.HandlerClient
for res := range responses {
var phyPayload lorawan.PHYPayload
err = phyPayload.UnmarshalBinary(res.response.Payload)
if err != nil {
continue
}
if phyPayload.MIC != correctMIC {
continue
}
if gotFirst {
ctx.Warn("Duplicate Activation Response")
} else {
gotFirst = true
joinHandler = res.handler
joinHandlerClient = res.client
}
}
// Activation not accepted by any broker
if !gotFirst {
ctx.Debug("Activation not accepted by any Handler")
return nil, errors.New("Activation not accepted by any Handler")
}
ctx.WithField("HandlerID", joinHandler.Id).Debug("Forward Activation")
handlerResponse, err := joinHandlerClient.Activate(b.Component.GetContext(""), deduplicatedActivationRequest)
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "Handler refused activation")
}
handlerResponse, err = b.ns.Activate(b.Component.GetContext(b.nsToken), handlerResponse)
if err != nil {
return nil, errors.Wrap(errors.FromGRPCError(err), "NetworkServer refused activation")
}
res = &pb.DeviceActivationResponse{
Payload: handlerResponse.Payload,
Message: handlerResponse.Message,
DownlinkOption: handlerResponse.DownlinkOption,
}
return res, nil
}
gtwID := args[0]
if !api.ValidID(gtwID) {
ctx.Fatal("Invalid Gateway ID")
}
conn, manager := util.GetRouterManager(ctx)
defer conn.Close()
ctx = ctx.WithField("GatewayID", gtwID)
resp, err := manager.GatewayStatus(util.GetContext(ctx), &router.GatewayStatusRequest{
GatewayId: gtwID,
})
if err != nil {
ctx.WithError(errors.FromGRPCError(err)).Fatal("Could not get status of gateway.")
}
ctx.Infof("Received status")
fmt.Println()
printKV("Last seen", time.Unix(0, resp.LastSeen))
printKV("Timestamp", resp.Status.Timestamp)
if t := resp.Status.Time; t != 0 {
printKV("Reported time", time.Unix(0, t))
}
printKV("Description", resp.Status.Description)
printKV("Platform", resp.Status.Platform)
printKV("Contact email", resp.Status.ContactEmail)
printKV("Region", resp.Status.Region)
printKV("IP Address", strings.Join(resp.Status.Ip, ", "))
printKV("GPS coordinates", func() interface{} {