lorawan

package module
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 Go to latest Published: May 7, 2024 License: MIT Imports: 15 Imported by: 309

README

LoRaWAN (Go)

Tests GoDoc

Package lorawan provides structures and tools to read and write LoRaWAN 1.0 and 1.1 frames from and to a slice of bytes.

The following structures are implemented (+ fields):

PHYPayload    (MHDR | MACPayload | MIC)
MACPayload    (FHDR | FPort | FRMPayload)
FHDR          (DevAddr | FCtrl | FCnt | FOpts)

The Following message types (MType) are implemented:

  • JoinRequest
  • RejoinRequest
  • JoinAccept
  • UnconfirmedDataUp
  • UnconfirmedDataDown
  • ConfirmedDataUp
  • ConfirmedDataDown
  • Proprietary

The following MAC commands (and their optional payloads) are implemented:

  • ResetInd
  • ResetConf
  • LinkCheckReq
  • LinkCheckAns
  • LinkADRReq
  • LinkADRAns
  • DutyCycleReq
  • DutyCycleAns
  • RXParamSetupReq
  • RXParamSetupAns
  • DevStatusReq
  • DevStatusAns
  • NewChannelReq
  • NewChannelAns
  • RXTimingSetupReq
  • RXTimingSetupAns
  • TXParamSetupReq
  • TXParamSetupAns
  • DLChannelReq
  • DLChannelAns
  • RekeyInd
  • RekeyConf
  • ADRParamSetupReq
  • ADRParamSetupAns
  • DeviceTimeReq
  • DeviceTimeAns
  • ForceRejoinReq
  • RejoinParamSetupReq
  • RejoinParamSetupAns
  • PingSlotInfoReq
  • PingSlotInfoAns
  • PingSlotChannelReq
  • PingSlotChannelAns
  • BeaconFreqReq
  • BeaconFreqAns
  • DeviceModeInd
  • DeviceModeConf
  • Proprietary commands (0x80 - 0xFF) can be registered with RegisterProprietaryMACCommand

Sub-packages

  • airtime functions for calculating TX time-on-air
  • band ISM band configuration from the LoRaWAN Regional Parameters specification
  • backend Structs matching the LoRaWAN Backend Interface specification object
  • backend/joinserver LoRaWAN Backend Interface join-server interface implementation (http.Handler)
  • applayer/clocksync Application Layer Clock Synchronization over LoRaWAN
  • applayer/multicastsetup Application Layer Remote Multicast Setup over LoRaWAN
  • applayer/fragmentation Fragmented Data Block Transport over LoRaWAN
  • applayer/firmwaremanagement Firmware Management Protocol over LoRaWAN
  • gps functions to handle Time <> GPS Epoch time conversion

Documentation

See https://godoc.org/github.com/brocaar/lorawan. There is also an examples section with usage examples. When using this package, knowledge about the LoRaWAN specification is needed. You can download the LoRaWAN specification here: https://lora-alliance.org/lorawan-for-developers

Support

For questions, feedback or support, please refer to the ChirpStack Community Forum: https://forum.chirpstack.io.

License

This package is distributed under the MIT license which can be found in LICENSE. LoRaWAN is a trademark of the LoRa Alliance Inc. (https://www.lora-alliance.org/).

Documentation

Overview

Package lorawan provides structures and tools to read and write LoRaWAN 1.0 and 1.1 frames from and to a slice of bytes.

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

func EncryptFOpts 

func EncryptFOpts(nwkSEncKey AES128Key, aFCntDown, uplink bool, devAddr DevAddr, fCnt uint32, data []byte) ([]byte, error)

EncryptFOpts encrypts the FOpts mac-commands. For uplink: 

Set the aFCntDown to false and use the FCntUp

For downlink if FPort is not set or equals to 0: 

Set the aFCntDown to false and use the NFCntDown

For downlink if FPort > 0: 

Set the aFCntDown to true and use the AFCntDown

func EncryptFRMPayload 

func EncryptFRMPayload(key AES128Key, uplink bool, devAddr DevAddr, fCnt uint32, data []byte) ([]byte, error)

EncryptFRMPayload encrypts the FRMPayload (slice of bytes). Note that EncryptFRMPayload is used for both encryption and decryption.

func GetTXParamSetupEIRP 

func GetTXParamSetupEIRP(index uint8) (float32, error)

GetTXParamsetupEIRP returns the EIRP (dBm) for the coded value.

func GetTXParamSetupEIRPIndex 

func GetTXParamSetupEIRPIndex(eirp float32) uint8

GetTXParamSetupEIRPIndex returns the coded value for the given EIRP (dBm). Note that it returns the coded value that is closest to the given EIRP, without exceeding it.

func RegisterProprietaryMACCommand 

func RegisterProprietaryMACCommand(uplink bool, cid CID, payloadSize int) error

RegisterProprietaryMACCommand registers a proprietary MAC command. Note that there is no need to call this when the size of the payload is > 0 bytes.

Types

type ADRParam 

type ADRParam struct {
	LimitExp uint8 `json:"limitExp"`
	DelayExp uint8 `json:"delayExp"`
}

ADRParam defines the ADRParam field.

func (ADRParam) MarshalBinary 

func (p ADRParam) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*ADRParam) UnmarshalBinary 

func (p *ADRParam) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type ADRParamSetupReqPayload 

type ADRParamSetupReqPayload struct {
	ADRParam ADRParam `json:"adrParam"`
}

ADRParamSetupReqPayload represents the ADRParamReq payload.

func (ADRParamSetupReqPayload) MarshalBinary 

func (p ADRParamSetupReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*ADRParamSetupReqPayload) UnmarshalBinary 

func (p *ADRParamSetupReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type AES128Key 

type AES128Key [16]byte

AES128Key represents a 128 bit AES key.

func (AES128Key) MarshalBinary 

func (k AES128Key) MarshalBinary() ([]byte, error)

MarshalBinary encodes the key to a slice of bytes.

func (AES128Key) MarshalText 

func (k AES128Key) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (*AES128Key) Scan 

func (k *AES128Key) Scan(src interface{}) error

Scan implements sql.Scanner.

func (AES128Key) String 

func (k AES128Key) String() string

String implements fmt.Stringer.

func (*AES128Key) UnmarshalBinary 

func (k *AES128Key) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the key from a slice of bytes.

func (*AES128Key) UnmarshalText 

func (k *AES128Key) UnmarshalText(text []byte) error

UnmarshalText implements encoding.TextUnmarshaler.

func (AES128Key) Value 

func (k AES128Key) Value() (driver.Value, error)

Value implements driver.Valuer.

type BeaconFreqAnsPayload 

type BeaconFreqAnsPayload struct {
	BeaconFrequencyOK bool `json:"beaconFrequencyOK"`
}

BeaconFreqAnsPayload represents the BeaconFreqAns payload.

func (BeaconFreqAnsPayload) MarshalBinary 

func (p BeaconFreqAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*BeaconFreqAnsPayload) UnmarshalBinary 

func (p *BeaconFreqAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type BeaconFreqReqPayload 

type BeaconFreqReqPayload struct {
	Frequency uint32 `json:"frequency"`
}

BeaconFreqReqPayload represents the BeaconFreqReq payload.

func (BeaconFreqReqPayload) MarshalBinary 

func (p BeaconFreqReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*BeaconFreqReqPayload) UnmarshalBinary 

func (p *BeaconFreqReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type CFList 

type CFList struct {
	Payload    Payload    `json:"payload"`
	CFListType CFListType `json:"cFListType"`
}

CFList represents a list of channel frequencies or channel-masks.

func (CFList) MarshalBinary 

func (l CFList) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*CFList) UnmarshalBinary 

func (l *CFList) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type CFListChannelMaskPayload 

type CFListChannelMaskPayload struct {
	ChannelMasks []ChMask
}

CFListChannelMaskPayload holds a list of channel-masks.

func (CFListChannelMaskPayload) MarshalBinary 

func (p CFListChannelMaskPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*CFListChannelMaskPayload) UnmarshalBinary 

func (p *CFListChannelMaskPayload) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type CFListChannelPayload 

type CFListChannelPayload struct {
	Channels [5]uint32
}

CFListChannelPayload holds a list of (up to 5) channel frequencies. Each frequency is in Hz and must be a multiple of 100.

func (CFListChannelPayload) MarshalBinary 

func (p CFListChannelPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*CFListChannelPayload) UnmarshalBinary 

func (p *CFListChannelPayload) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type CFListType 

type CFListType uint8

CFListType defines the CFList payload type. 

const (
	CFListChannel     CFListType = 0
	CFListChannelMask CFListType = 1
)

Possible CFList types.

type CID 

type CID byte

CID defines the MAC command identifier. 

const (
	// Class-A
	ResetInd            CID = 0x01
	ResetConf           CID = 0x01
	LinkCheckReq        CID = 0x02
	LinkCheckAns        CID = 0x02
	LinkADRReq          CID = 0x03
	LinkADRAns          CID = 0x03
	DutyCycleReq        CID = 0x04
	DutyCycleAns        CID = 0x04
	RXParamSetupReq     CID = 0x05
	RXParamSetupAns     CID = 0x05
	DevStatusReq        CID = 0x06
	DevStatusAns        CID = 0x06
	NewChannelReq       CID = 0x07
	NewChannelAns       CID = 0x07
	RXTimingSetupReq    CID = 0x08
	RXTimingSetupAns    CID = 0x08
	TXParamSetupReq     CID = 0x09
	TXParamSetupAns     CID = 0x09
	DLChannelReq        CID = 0x0A
	DLChannelAns        CID = 0x0A
	RekeyInd            CID = 0x0B
	RekeyConf           CID = 0x0B
	ADRParamSetupReq    CID = 0x0C
	ADRParamSetupAns    CID = 0x0C
	DeviceTimeReq       CID = 0x0D
	DeviceTimeAns       CID = 0x0D
	ForceRejoinReq      CID = 0x0E
	RejoinParamSetupReq CID = 0x0F
	RejoinParamSetupAns CID = 0x0F

	// Class-B
	PingSlotInfoReq    CID = 0x10
	PingSlotInfoAns    CID = 0x10
	PingSlotChannelReq CID = 0x11
	PingSlotChannelAns CID = 0x11
	// 0x12 has been deprecated in 1.1
	BeaconFreqReq CID = 0x13
	BeaconFreqAns CID = 0x13

	// Class-C
	DeviceModeInd  CID = 0x20
	DeviceModeConf CID = 0x20
)

MAC commands as specified by the LoRaWAN R1.0 specs. Note that each *Req / *Ans has the same value. Based on the fact if a message is uplink or downlink you should use on or the other.

func (CID) MarshalText 

func (c CID) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (CID) String 

func (i CID) String() string

type ChMask 

type ChMask [16]bool

ChMask encodes the channels usable for uplink access. 0 = channel 1, 15 = channel 16.

func (ChMask) MarshalBinary 

func (m ChMask) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*ChMask) UnmarshalBinary 

func (m *ChMask) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type DLChannelAnsPayload 

type DLChannelAnsPayload struct {
	UplinkFrequencyExists bool `json:"uplinkFrequencyExists"`
	ChannelFrequencyOK    bool `json:"channelFrequencyOK"`
}

DLChannelAnsPayload represents the DLChannelAns payload.

func (DLChannelAnsPayload) MarshalBinary 

func (p DLChannelAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*DLChannelAnsPayload) UnmarshalBinary 

func (p *DLChannelAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type DLChannelReqPayload 

type DLChannelReqPayload struct {
	ChIndex uint8  `json:"chIndex"`
	Freq    uint32 `json:"freq"`
}

DLChannelReqPayload represents the DLChannelReq payload.

func (DLChannelReqPayload) MarshalBinary 

func (p DLChannelReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*DLChannelReqPayload) UnmarshalBinary 

func (p *DLChannelReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type DLSettings 

type DLSettings struct {
	OptNeg      bool  `json:"optNeg"`
	RX2DataRate uint8 `json:"rx2DataRate"`
	RX1DROffset uint8 `json:"rx1DROffset"`
}

DLSettings represents the DLSettings fields (downlink settings).

func (DLSettings) MarshalBinary 

func (s DLSettings) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (DLSettings) MarshalText 

func (s DLSettings) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (*DLSettings) UnmarshalBinary 

func (s *DLSettings) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

func (*DLSettings) UnmarshalText 

func (s *DLSettings) UnmarshalText(text []byte) error

UnmarshalText implements encoding.TextUnmarshaler.

type DataPayload 

type DataPayload struct {
	Bytes []byte `json:"bytes"`
}

DataPayload represents a slice of bytes.

func (DataPayload) MarshalBinary 

func (p DataPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*DataPayload) UnmarshalBinary 

func (p *DataPayload) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type DevAddr 

type DevAddr [4]byte

DevAddr represents the device address.

func (DevAddr) IsNetID 

func (a DevAddr) IsNetID(netID NetID) bool

IsNetID returns a bool indicating if the NwkID matches the given NetID.

func (DevAddr) MarshalBinary 

func (a DevAddr) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (DevAddr) MarshalText 

func (a DevAddr) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (DevAddr) NetIDType 

func (a DevAddr) NetIDType() int

NetIDType returns the NetID type of the DevAddr.

func (DevAddr) NwkID 

func (a DevAddr) NwkID() []byte

NwkID returns the NwkID bits of the DevAddr.

func (*DevAddr) Scan 

func (a *DevAddr) Scan(src interface{}) error

Scan implements sql.Scanner.

func (*DevAddr) SetAddrPrefix 

func (a *DevAddr) SetAddrPrefix(netID NetID)

SetAddrPrefix sets the NetID based AddrPrefix.

func (DevAddr) String 

func (a DevAddr) String() string

String implements fmt.Stringer.

func (*DevAddr) UnmarshalBinary 

func (a *DevAddr) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

func (*DevAddr) UnmarshalText 

func (a *DevAddr) UnmarshalText(text []byte) error

UnmarshalText implements encoding.TextUnmarshaler.

func (DevAddr) Value 

func (a DevAddr) Value() (driver.Value, error)

Value implements driver.Valuer.

type DevNonce 

type DevNonce uint16

DevNonce represents the dev-nonce.

func (DevNonce) MarshalBinary 

func (n DevNonce) MarshalBinary() ([]byte, error)

MarshalBinary implements encoding.BinaryMarshaler.

func (*DevNonce) UnmarshalBinary 

func (n *DevNonce) UnmarshalBinary(data []byte) error

UnmarshalBinary implements encoding.BinaryUnmarshaler.

type DevStatusAnsPayload 

type DevStatusAnsPayload struct {
	Battery uint8 `json:"battery"`
	Margin  int8  `json:"margin"`
}

DevStatusAnsPayload represents the DevStatusAns payload.

func (DevStatusAnsPayload) MarshalBinary 

func (p DevStatusAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*DevStatusAnsPayload) UnmarshalBinary 

func (p *DevStatusAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type DeviceModeClass 

type DeviceModeClass byte

DeviceModeIndClass defines the DeviceModeInd class. 

const (
	DeviceModeClassA DeviceModeClass = 0x00
	DeviceModeRFU    DeviceModeClass = 0x01
	DeviceModeClassC DeviceModeClass = 0x02
)

DeviceModeInd class options.

func (DeviceModeClass) String 

func (i DeviceModeClass) String() string

type DeviceModeConfPayload 

type DeviceModeConfPayload struct {
	Class DeviceModeClass
}

DeviceModeConfPayload represents the DeviceModeConf payload.

func (DeviceModeConfPayload) MarshalBinary 

func (p DeviceModeConfPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*DeviceModeConfPayload) UnmarshalBinary 

func (p *DeviceModeConfPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type DeviceModeIndPayload 

type DeviceModeIndPayload struct {
	Class DeviceModeClass
}

DeviceModeIndPayload represents the DeviceModeInd payload.

func (DeviceModeIndPayload) MarshalBinary 

func (p DeviceModeIndPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*DeviceModeIndPayload) UnmarshalBinary 

func (p *DeviceModeIndPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type DeviceTimeAnsPayload 

type DeviceTimeAnsPayload struct {
	TimeSinceGPSEpoch time.Duration `json:"timeSinceGPSEpoch"`
}

DeviceTimeAnsPayload represents the DeviceTimeAns payload.

func (DeviceTimeAnsPayload) MarshalBinary 

func (p DeviceTimeAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*DeviceTimeAnsPayload) UnmarshalBinary 

func (p *DeviceTimeAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type DutyCycleReqPayload 

type DutyCycleReqPayload struct {
	MaxDCycle uint8 `json:"maxDCycle"`
}

DutyCycleReqPayload represents the DutyCycleReq payload.

func (DutyCycleReqPayload) MarshalBinary 

func (p DutyCycleReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*DutyCycleReqPayload) UnmarshalBinary 

func (p *DutyCycleReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type DwellTime 

type DwellTime int

DwellTime defines the dwell time type. 

const (
	DwellTimeNoLimit DwellTime = iota
	DwellTime400ms
)

Possible dwell time options.

type EUI64 

type EUI64 [8]byte

EUI64 data type

func (EUI64) MarshalBinary 

func (e EUI64) MarshalBinary() ([]byte, error)

MarshalBinary implements encoding.BinaryMarshaler.

func (EUI64) MarshalText 

func (e EUI64) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (*EUI64) Scan 

func (e *EUI64) Scan(src interface{}) error

Scan implements sql.Scanner.

func (EUI64) String 

func (e EUI64) String() string

String implement fmt.Stringer.

func (*EUI64) UnmarshalBinary 

func (e *EUI64) UnmarshalBinary(data []byte) error

UnmarshalBinary implements encoding.BinaryUnmarshaler.

func (*EUI64) UnmarshalText 

func (e *EUI64) UnmarshalText(text []byte) error

UnmarshalText implements encoding.TextUnmarshaler.

func (EUI64) Value 

func (e EUI64) Value() (driver.Value, error)

Value implements driver.Valuer.

type FCtrl 

type FCtrl struct {
	ADR       bool `json:"adr"`
	ADRACKReq bool `json:"adrAckReq"`
	ACK       bool `json:"ack"`
	FPending  bool `json:"fPending"` // only used for downlink messages
	ClassB    bool `json:"classB"`   // only used for uplink messages
	// contains filtered or unexported fields
}

FCtrl represents the FCtrl (frame control) field. Please note that the FPending and ClassB are mapped to the same bit. This means that when unmarshaling from a byte-slice, both fields will contain the same value (either true or false).

func (FCtrl) MarshalBinary 

func (c FCtrl) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*FCtrl) UnmarshalBinary 

func (c *FCtrl) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type FHDR 

type FHDR struct {
	DevAddr DevAddr   `json:"devAddr"`
	FCtrl   FCtrl     `json:"fCtrl"`
	FCnt    uint32    `json:"fCnt"`  // only the least-significant 16 bits will be marshalled
	FOpts   []Payload `json:"fOpts"` // max. number of allowed bytes is 15
}

FHDR represents the frame header.

func (FHDR) MarshalBinary 

func (h FHDR) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*FHDR) UnmarshalBinary 

func (h *FHDR) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type ForceRejoinReqPayload 

type ForceRejoinReqPayload struct {
	Period     uint8 `json:"period"`
	MaxRetries uint8 `json:"maxRetries"`
	RejoinType uint8 `json:"rejoinType"`
	DR         uint8 `json:"dr"`
}

ForceRejoinReqPayload represents the ForceRejoinReq payload.

func (ForceRejoinReqPayload) MarshalBinary 

func (p ForceRejoinReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*ForceRejoinReqPayload) UnmarshalBinary 

func (p *ForceRejoinReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type JoinAcceptPayload 

type JoinAcceptPayload struct {
	JoinNonce  JoinNonce  `json:"joinNonce"`
	HomeNetID  NetID      `json:"homeNetID"`
	DevAddr    DevAddr    `json:"devAddr"`
	DLSettings DLSettings `json:"dlSettings"`
	RXDelay    uint8      `json:"rxDelay"` // 0=1s, 1=1s, 2=2s, ... 15=15s
	CFList     *CFList    `json:"cFlist"`
}

JoinAcceptPayload represents the join-accept message payload.

func (JoinAcceptPayload) MarshalBinary 

func (p JoinAcceptPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*JoinAcceptPayload) UnmarshalBinary 

func (p *JoinAcceptPayload) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type JoinNonce 

type JoinNonce uint32

JoinNonce represents the join-nonce. Note that the max value is 2^24 - 1 = 16777215.

func (JoinNonce) MarshalBinary 

func (n JoinNonce) MarshalBinary() ([]byte, error)

MarshalBinary implements encoding.BinaryMarshaler.

func (*JoinNonce) UnmarshalBinary 

func (n *JoinNonce) UnmarshalBinary(data []byte) error

UnmarshalBinary implements encoding.BinaryUnmarshaler.

type JoinRequestPayload 

type JoinRequestPayload struct {
	JoinEUI  EUI64    `json:"joinEUI"`
	DevEUI   EUI64    `json:"devEUI"`
	DevNonce DevNonce `json:"devNonce"`
}

JoinRequestPayload represents the join-request message payload.

func (JoinRequestPayload) MarshalBinary 

func (p JoinRequestPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*JoinRequestPayload) UnmarshalBinary 

func (p *JoinRequestPayload) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type JoinType 

type JoinType uint8

JoinType defines the join-request type. 

const (
	JoinRequestType    JoinType = 0xff
	RejoinRequestType0 JoinType = 0x00
	RejoinRequestType1 JoinType = 0x01
	RejoinRequestType2 JoinType = 0x02
)

Join-request types.

func (JoinType) String 

func (i JoinType) String() string

type LinkADRAnsPayload 

type LinkADRAnsPayload struct {
	ChannelMaskACK bool `json:"channelMaskAck"`
	DataRateACK    bool `json:"dataRateAck"`
	PowerACK       bool `json:"powerAck"`
}

LinkADRAnsPayload represents the LinkADRAns payload.

func (LinkADRAnsPayload) MarshalBinary 

func (p LinkADRAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*LinkADRAnsPayload) UnmarshalBinary 

func (p *LinkADRAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type LinkADRReqPayload 

type LinkADRReqPayload struct {
	DataRate   uint8      `json:"dataRate"`
	TXPower    uint8      `json:"txPower"`
	ChMask     ChMask     `json:"chMask"`
	Redundancy Redundancy `json:"redundancy"`
}

LinkADRReqPayload represents the LinkADRReq payload.

func (LinkADRReqPayload) MarshalBinary 

func (p LinkADRReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*LinkADRReqPayload) UnmarshalBinary 

func (p *LinkADRReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type LinkCheckAnsPayload 

type LinkCheckAnsPayload struct {
	Margin uint8 `json:"margin"`
	GwCnt  uint8 `json:"gwCnt"`
}

LinkCheckAnsPayload represents the LinkCheckAns payload.

func (LinkCheckAnsPayload) MarshalBinary 

func (p LinkCheckAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*LinkCheckAnsPayload) UnmarshalBinary 

func (p *LinkCheckAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type MACCommand 

type MACCommand struct {
	CID     CID               `json:"cid"`
	Payload MACCommandPayload `json:"payload"`
}

MACCommand represents a MAC command with optional payload.

func (MACCommand) MarshalBinary 

func (m MACCommand) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*MACCommand) UnmarshalBinary 

func (m *MACCommand) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type MACCommandPayload 

type MACCommandPayload interface {
	MarshalBinary() (data []byte, err error)
	UnmarshalBinary(data []byte) error
}

MACCommandPayload is the interface that every MACCommand payload must implement.

func GetMACPayloadAndSize 

func GetMACPayloadAndSize(uplink bool, c CID) (MACCommandPayload, int, error)

GetMACPayloadAndSize returns a new MACCommandPayload instance and it's size.

type MACPayload 

type MACPayload struct {
	FHDR       FHDR      `json:"fhdr"`
	FPort      *uint8    `json:"fPort"` // optional, but must be set when FRMPayload is set
	FRMPayload []Payload `json:"frmPayload"`
}

MACPayload represents the MAC payload. Use NewMACPayload for creating a new MACPayload.

func (MACPayload) MarshalBinary 

func (p MACPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*MACPayload) UnmarshalBinary 

func (p *MACPayload) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type MACVersion 

type MACVersion byte

MACVersion defines the LoRaWAN MAC version. 

const (
	LoRaWAN1_0 MACVersion = iota
	LoRaWAN1_1
)

Supported LoRaWAN MAC versions.

type MHDR 

type MHDR struct {
	MType MType `json:"mType"`
	Major Major `json:"major"`
}

MHDR represents the MAC header.

func (MHDR) MarshalBinary 

func (h MHDR) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*MHDR) UnmarshalBinary 

func (h *MHDR) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type MIC 

type MIC [4]byte

MIC represents the message integrity code.

func (MIC) MarshalText 

func (m MIC) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (MIC) String 

func (m MIC) String() string

String implements fmt.Stringer.

type MType 

type MType byte

MType represents the message type. 

const (
	JoinRequest MType = iota
	JoinAccept
	UnconfirmedDataUp
	UnconfirmedDataDown
	ConfirmedDataUp
	ConfirmedDataDown
	RejoinRequest
	Proprietary
)

Supported message types (MType)

func (MType) MarshalText 

func (m MType) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (MType) String 

func (i MType) String() string

type Major 

type Major byte

Major defines the major version of data message. 

const (
	LoRaWANR1 Major = 0
)

Supported major versions

func (Major) MarshalText 

func (m Major) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (Major) String 

func (i Major) String() string

type NetID 

type NetID [3]byte

NetID represents the NetID.

func (NetID) ID 

func (n NetID) ID() []byte

ID returns the NetID ID part.

func (NetID) MarshalBinary 

func (n NetID) MarshalBinary() ([]byte, error)

MarshalBinary implements encoding.BinaryMarshaler.

func (NetID) MarshalText 

func (n NetID) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (*NetID) Scan 

func (n *NetID) Scan(src interface{}) error

Scan implements sql.Scanner.

func (NetID) String 

func (n NetID) String() string

String implements fmt.Stringer.

func (NetID) Type 

func (n NetID) Type() int

Type returns the NetID type.

func (*NetID) UnmarshalBinary 

func (n *NetID) UnmarshalBinary(data []byte) error

UnmarshalBinary implements encoding.BinaryUnmarshaler.

func (*NetID) UnmarshalText 

func (n *NetID) UnmarshalText(text []byte) error

UnmarshalText implements encoding.TextUnmarshaler.

func (NetID) Value 

func (n NetID) Value() (driver.Value, error)

Value implements driver.Valuer.

type NewChannelAnsPayload 

type NewChannelAnsPayload struct {
	ChannelFrequencyOK bool `json:"channelFrequencyOK"`
	DataRateRangeOK    bool `json:"dataRateRangeOK"`
}

NewChannelAnsPayload represents the NewChannelAns payload.

func (NewChannelAnsPayload) MarshalBinary 

func (p NewChannelAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*NewChannelAnsPayload) UnmarshalBinary 

func (p *NewChannelAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type NewChannelReqPayload 

type NewChannelReqPayload struct {
	ChIndex uint8  `json:"chIndex"`
	Freq    uint32 `json:"freq"`
	MaxDR   uint8  `json:"maxDR"`
	MinDR   uint8  `json:"minDR"`
}

NewChannelReqPayload represents the NewChannelReq payload.

func (NewChannelReqPayload) MarshalBinary 

func (p NewChannelReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*NewChannelReqPayload) UnmarshalBinary 

func (p *NewChannelReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type PHYPayload 

type PHYPayload struct {
	MHDR       MHDR    `json:"mhdr"`
	MACPayload Payload `json:"macPayload"`
	MIC        MIC     `json:"mic"`
}

PHYPayload represents the physical payload.

Example (JoinAcceptSend) 
appKey := [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
joinEUI := EUI64{8, 7, 6, 5, 4, 3, 2, 1}
devNonce := DevNonce(258)

phy := PHYPayload{
	MHDR: MHDR{
		MType: JoinAccept,
		Major: LoRaWANR1,
	},
	MACPayload: &JoinAcceptPayload{
		JoinNonce:  65793,
		HomeNetID:  [3]byte{2, 2, 2},
		DevAddr:    DevAddr([4]byte{1, 2, 3, 4}),
		DLSettings: DLSettings{RX2DataRate: 0, RX1DROffset: 0},
		RXDelay:    0,
	},
}

// set the MIC before encryption
if err := phy.SetDownlinkJoinMIC(JoinRequestType, joinEUI, devNonce, appKey); err != nil {
	panic(err)
}
if err := phy.EncryptJoinAcceptPayload(appKey); err != nil {
	panic(err)
}

str, err := phy.MarshalText()
if err != nil {
	panic(err)
}

bytes, err := phy.MarshalBinary()
if err != nil {
	panic(err)
}

fmt.Println(string(str))
fmt.Println(bytes)

Output:

ICPPM1SJquMYPAvguqje5fM=
[32 35 207 51 84 137 170 227 24 60 11 224 186 168 222 229 243]
Example (JoinRequest) 
appKey := [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}

phy := PHYPayload{
	MHDR: MHDR{
		MType: JoinRequest,
		Major: LoRaWANR1,
	},
	MACPayload: &JoinRequestPayload{
		JoinEUI:  [8]byte{1, 1, 1, 1, 1, 1, 1, 1},
		DevEUI:   [8]byte{2, 2, 2, 2, 2, 2, 2, 2},
		DevNonce: 771,
	},
}

if err := phy.SetUplinkJoinMIC(appKey); err != nil {
	panic(err)
}

str, err := phy.MarshalText()
if err != nil {
	panic(err)
}

bytes, err := phy.MarshalBinary()
if err != nil {
	panic(err)
}

fmt.Println(string(str))
fmt.Println(bytes)

Output:

AAEBAQEBAQEBAgICAgICAgIDAwm5ezI=
[0 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 9 185 123 50]
Example (Lorawan10Decode) 
nwkSKey := [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
appSKey := [16]byte{16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1}

var phy PHYPayload
// use use UnmarshalBinary when decoding a byte-slice
if err := phy.UnmarshalText([]byte("gAQDAgEDAAAGcwcK4mTU9+EX0sA=")); err != nil {
	panic(err)
}

ok, err := phy.ValidateUplinkDataMIC(LoRaWAN1_0, 0, 0, 0, nwkSKey, AES128Key{})
if err != nil {
	panic(err)
}
if !ok {
	panic("invalid mic")
}

if err := phy.DecodeFOptsToMACCommands(); err != nil {
	panic(err)
}

phyJSON, err := phy.MarshalJSON()
if err != nil {
	panic(err)
}

if err := phy.DecryptFRMPayload(appSKey); err != nil {
	panic(err)
}
macPL, ok := phy.MACPayload.(*MACPayload)
if !ok {
	panic("*MACPayload expected")
}

pl, ok := macPL.FRMPayload[0].(*DataPayload)
if !ok {
	panic("*DataPayload expected")
}

fmt.Println(string(phyJSON))
fmt.Println(pl.Bytes)

Output:

{"mhdr":{"mType":"ConfirmedDataUp","major":"LoRaWANR1"},"macPayload":{"fhdr":{"devAddr":"01020304","fCtrl":{"adr":false,"adrAckReq":false,"ack":false,"fPending":false,"classB":false},"fCnt":0,"fOpts":[{"cid":"DevStatusReq","payload":{"battery":115,"margin":7}}]},"fPort":10,"frmPayload":[{"bytes":"4mTU9w=="}]},"mic":"e117d2c0"}
[1 2 3 4]
Example (Lorawan10Encode) 
nwkSKey := [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
appSKey := [16]byte{16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1}
fPort := uint8(10)

phy := PHYPayload{
	MHDR: MHDR{
		MType: ConfirmedDataUp,
		Major: LoRaWANR1,
	},
	MACPayload: &MACPayload{
		FHDR: FHDR{
			DevAddr: DevAddr([4]byte{1, 2, 3, 4}),
			FCtrl: FCtrl{
				ADR:       false,
				ADRACKReq: false,
				ACK:       false,
			},
			FCnt: 0,
			FOpts: []Payload{
				&MACCommand{
					CID: DevStatusAns,
					Payload: &DevStatusAnsPayload{
						Battery: 115,
						Margin:  7,
					},
				},
			},
		},
		FPort:      &fPort,
		FRMPayload: []Payload{&DataPayload{Bytes: []byte{1, 2, 3, 4}}},
	},
}

if err := phy.EncryptFRMPayload(appSKey); err != nil {
	panic(err)
}

if err := phy.SetUplinkDataMIC(LoRaWAN1_0, 0, 0, 0, nwkSKey, AES128Key{}); err != nil {
	panic(err)
}

str, err := phy.MarshalText()
if err != nil {
	panic(err)
}

bytes, err := phy.MarshalBinary()
if err != nil {
	panic(err)
}

phyJSON, err := phy.MarshalJSON()
if err != nil {
	panic(err)
}

fmt.Println(string(str))
fmt.Println(bytes)
fmt.Println(string(phyJSON))

Output:

gAQDAgEDAAAGcwcK4mTU9+EX0sA=
[128 4 3 2 1 3 0 0 6 115 7 10 226 100 212 247 225 23 210 192]
{"mhdr":{"mType":"ConfirmedDataUp","major":"LoRaWANR1"},"macPayload":{"fhdr":{"devAddr":"01020304","fCtrl":{"adr":false,"adrAckReq":false,"ack":false,"fPending":false,"classB":false},"fCnt":0,"fOpts":[{"cid":"DevStatusReq","payload":{"battery":115,"margin":7}}]},"fPort":10,"frmPayload":[{"bytes":"4mTU9w=="}]},"mic":"e117d2c0"}
Example (Lorawan11EncryptedFoptsDecode) 
sNwkSIntKey := [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
nwkSEncKey := [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2}
appSKey := [16]byte{16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1}

var phy PHYPayload
if err := phy.UnmarshalText([]byte("YAQDAgEDAAAirAoB8LRo3ape0To=")); err != nil {
	panic(err)
}

ok, err := phy.ValidateDownlinkDataMIC(LoRaWAN1_1, 0, sNwkSIntKey)
if err != nil {
	panic(err)
}
if !ok {
	panic("invalid mic")
}

if err := phy.DecryptFOpts(nwkSEncKey); err != nil {
	panic(err)
}

if err := phy.DecryptFRMPayload(appSKey); err != nil {
	panic(err)
}

phyJSON, err := phy.MarshalJSON()
if err != nil {
	panic(err)
}

fmt.Println(string(phyJSON))

Output:

{"mhdr":{"mType":"UnconfirmedDataDown","major":"LoRaWANR1"},"macPayload":{"fhdr":{"devAddr":"01020304","fCtrl":{"adr":false,"adrAckReq":false,"ack":false,"fPending":false,"classB":false},"fCnt":0,"fOpts":[{"cid":"LinkCheckReq","payload":{"margin":7,"gwCnt":1}}]},"fPort":1,"frmPayload":[{"bytes":"AQIDBA=="}]},"mic":"aa5ed13a"}
Example (Lorawan11EncryptedFoptsEncode) 
sNwkSIntKey := [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
nwkSEncKey := [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2}
appSKey := [16]byte{16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1}
var fport1 uint8 = 1

phy := PHYPayload{
	MHDR: MHDR{
		MType: UnconfirmedDataDown,
		Major: LoRaWANR1,
	},
	MACPayload: &MACPayload{
		FHDR: FHDR{
			DevAddr: DevAddr{1, 2, 3, 4},
			FOpts: []Payload{
				&MACCommand{
					CID: LinkCheckAns,
					Payload: &LinkCheckAnsPayload{
						Margin: 7,
						GwCnt:  1,
					},
				},
			},
		},
		FPort: &fport1,
		FRMPayload: []Payload{
			&DataPayload{Bytes: []byte{1, 2, 3, 4}},
		},
	},
}

if err := phy.EncryptFOpts(nwkSEncKey); err != nil {
	panic(err)
}

if err := phy.EncryptFRMPayload(appSKey); err != nil {
	panic(err)
}

if err := phy.SetDownlinkDataMIC(LoRaWAN1_1, 0, sNwkSIntKey); err != nil {
	panic(err)
}

str, err := phy.MarshalText()
if err != nil {
	panic(err)
}

bytes, err := phy.MarshalBinary()
if err != nil {
	panic(err)
}

phyJSON, err := phy.MarshalJSON()
if err != nil {
	panic(err)
}

fmt.Println(string(str))
fmt.Println(bytes)
fmt.Println(string(phyJSON))

Output:

YAQDAgEDAAAirAoB8LRo3ape0To=
[96 4 3 2 1 3 0 0 34 172 10 1 240 180 104 221 170 94 209 58]
{"mhdr":{"mType":"UnconfirmedDataDown","major":"LoRaWANR1"},"macPayload":{"fhdr":{"devAddr":"01020304","fCtrl":{"adr":false,"adrAckReq":false,"ack":false,"fPending":false,"classB":false},"fCnt":0,"fOpts":[{"bytes":"IqwK"}]},"fPort":1,"frmPayload":[{"bytes":"8LRo3Q=="}]},"mic":"aa5ed13a"}
Example (Lorawan11JoinAcceptSend) 
appKey := [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
joinEUI := EUI64{8, 7, 6, 5, 4, 3, 2, 1}
devNonce := DevNonce(258)

// note: the DLSettings OptNeg is set to true!
phy := PHYPayload{
	MHDR: MHDR{
		MType: JoinAccept,
		Major: LoRaWANR1,
	},
	MACPayload: &JoinAcceptPayload{
		JoinNonce:  65793,
		HomeNetID:  [3]byte{2, 2, 2},
		DevAddr:    DevAddr([4]byte{1, 2, 3, 4}),
		DLSettings: DLSettings{RX2DataRate: 0, RX1DROffset: 0, OptNeg: true},
		RXDelay:    0,
	},
}

// set the MIC before encryption
if err := phy.SetDownlinkJoinMIC(JoinRequestType, joinEUI, devNonce, appKey); err != nil {
	panic(err)
}
if err := phy.EncryptJoinAcceptPayload(appKey); err != nil {
	panic(err)
}

str, err := phy.MarshalText()
if err != nil {
	panic(err)
}

bytes, err := phy.MarshalBinary()
if err != nil {
	panic(err)
}

fmt.Println(string(str))
fmt.Println(bytes)

Output:

IHq+6gawKSDxHALQNI/PGBU=
[32 122 190 234 6 176 41 32 241 28 2 208 52 143 207 24 21]
Example (ProprietaryDecode) 
var phy PHYPayload

if err := phy.UnmarshalText([]byte("4AUGBwgJCgECAwQ=")); err != nil {
	panic(err)
}

phyJSON, err := phy.MarshalJSON()
if err != nil {
	panic(err)
}

pl, ok := phy.MACPayload.(*DataPayload)
if !ok {
	panic("*DataPayload expected")
}

fmt.Println(phy.MIC)
fmt.Println(pl.Bytes)
fmt.Println(string(phyJSON))

Output:

01020304
[5 6 7 8 9 10]
{"mhdr":{"mType":"Proprietary","major":"LoRaWANR1"},"macPayload":{"bytes":"BQYHCAkK"},"mic":"01020304"}
Example (ProprietaryEncode) 
phy := PHYPayload{
	MHDR: MHDR{
		MType: Proprietary,
		Major: LoRaWANR1,
	},
	MACPayload: &DataPayload{Bytes: []byte{5, 6, 7, 8, 9, 10}},
	MIC:        MIC{1, 2, 3, 4},
}

str, err := phy.MarshalText()
if err != nil {
	panic(err)
}

bytes, err := phy.MarshalBinary()
if err != nil {
	panic(err)
}

phyJSON, err := phy.MarshalJSON()
if err != nil {
	panic(err)
}

fmt.Println(string(str))
fmt.Println(bytes)
fmt.Println(string(phyJSON))

Output:

4AUGBwgJCgECAwQ=
[224 5 6 7 8 9 10 1 2 3 4]
{"mhdr":{"mType":"Proprietary","major":"LoRaWANR1"},"macPayload":{"bytes":"BQYHCAkK"},"mic":"01020304"}
Example (ReadJoinRequest) 
var phy PHYPayload
if err := phy.UnmarshalText([]byte("AAQDAgEEAwIBBQQDAgUEAwItEGqZDhI=")); err != nil {
	panic(err)
}

jrPL, ok := phy.MACPayload.(*JoinRequestPayload)
if !ok {
	panic("MACPayload must be a *JoinRequestPayload")
}

fmt.Println(phy.MHDR.MType)
fmt.Println(jrPL.JoinEUI)
fmt.Println(jrPL.DevEUI)
fmt.Println(jrPL.DevNonce)

Output:

JoinRequest
0102030401020304
0203040502030405
4141

func (*PHYPayload) DecodeFOptsToMACCommands 

func (p *PHYPayload) DecodeFOptsToMACCommands() error

DecodeFOptsToMACCommands decodes the (decrypted) FOpts bytes into MAC commands.

func (*PHYPayload) DecodeFRMPayloadToMACCommands 

func (p *PHYPayload) DecodeFRMPayloadToMACCommands() error

DecodeFRMPayloadToMACCommands decodes the (decrypted) FRMPayload bytes into MAC commands. Note that after calling DecryptFRMPayload, this method is called automatically when FPort=0.

func (*PHYPayload) DecryptFOpts 

func (p *PHYPayload) DecryptFOpts(nwkSEncKey AES128Key) error

DecryptFOpts decrypts the FOpts payload and decodes it into mac-command structures.

func (*PHYPayload) DecryptFRMPayload 

func (p *PHYPayload) DecryptFRMPayload(key AES128Key) error

DecryptFRMPayload decrypts the FRMPayload with the given key.

func (*PHYPayload) DecryptJoinAcceptPayload 

func (p *PHYPayload) DecryptJoinAcceptPayload(key AES128Key) error

DecryptJoinAcceptPayload decrypts the join-accept payload with the given key. Note that you need to decrypte before you can validate the MIC.

Note: for encrypting a join-request response, use NwkKey 

for rejoin-request 0, 1, 2 response, use JSEncKey

func (*PHYPayload) EncryptFOpts 

func (p *PHYPayload) EncryptFOpts(nwkSEncKey AES128Key) error

EncryptFOpts encrypts the FOpts with the given key.

func (*PHYPayload) EncryptFRMPayload 

func (p *PHYPayload) EncryptFRMPayload(key AES128Key) error

EncryptFRMPayload encrypts the FRMPayload with the given key.

func (*PHYPayload) EncryptJoinAcceptPayload 

func (p *PHYPayload) EncryptJoinAcceptPayload(key AES128Key) error

EncryptJoinAcceptPayload encrypts the join-accept payload with the given key. Note that encrypted must be performed after calling SetMIC (since the MIC is part of the encrypted payload).

Note: for encrypting a join-request response, use NwkKey 

for rejoin-request 0, 1, 2 response, use JSEncKey

func (PHYPayload) MarshalBinary 

func (p PHYPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (PHYPayload) MarshalJSON 

func (p PHYPayload) MarshalJSON() ([]byte, error)

MarshalJSON encodes the PHYPayload into JSON.

func (PHYPayload) MarshalText 

func (p PHYPayload) MarshalText() ([]byte, error)

MarshalText encodes the PHYPayload into base64.

func (*PHYPayload) SetDownlinkDataMIC 

func (p *PHYPayload) SetDownlinkDataMIC(macVersion MACVersion, confFCnt uint32, sNwkSIntKey AES128Key) error

SetDownlinkDataMIC calculates and sets the MIC field for downlink data frames. The confirmed frame-counter and is only required for LoRaWAN 1.1 and can be left blank otherwise.

func (*PHYPayload) SetDownlinkJoinMIC 

func (p *PHYPayload) SetDownlinkJoinMIC(joinReqType JoinType, joinEUI EUI64, devNonce DevNonce, key AES128Key) error

SetDownlinkJoinMIC calculates and sets the MIC field for downlink join requests.

func (*PHYPayload) SetUplinkDataMIC 

func (p *PHYPayload) SetUplinkDataMIC(macVersion MACVersion, confFCnt uint32, txDR, txCh uint8, fNwkSIntKey, sNwkSIntKey AES128Key) error

SetUplinkDataMIC calculates and sets the MIC field for uplink data frames. The confirmed frame-counter, TX data-rate TX channel index and SNwkSIntKey are only required for LoRaWAN 1.1 and can be left blank otherwise.

func (*PHYPayload) SetUplinkJoinMIC 

func (p *PHYPayload) SetUplinkJoinMIC(key AES128Key) error

SetUplinkJoinMIC calculates and sets the MIC field for uplink join requests.

func (*PHYPayload) UnmarshalBinary 

func (p *PHYPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

func (*PHYPayload) UnmarshalText 

func (p *PHYPayload) UnmarshalText(text []byte) error

UnmarshalText decodes the PHYPayload from base64.

func (PHYPayload) ValidateDownlinkDataMIC 

func (p PHYPayload) ValidateDownlinkDataMIC(macVersion MACVersion, confFCnt uint32, sNwkSIntKey AES128Key) (bool, error)

ValidateDownlinkDataMIC validates the MIC of a downlink data frame. In order to validate the MIC, the FCnt value must first be set to the full 32 bit frame-counter value, as only the 16 least-significant bits are transmitted. The confirmed frame-counter and is only required for LoRaWAN 1.1 and can be left blank otherwise.

func (PHYPayload) ValidateDownlinkJoinMIC 

func (p PHYPayload) ValidateDownlinkJoinMIC(joinReqType JoinType, joinEUI EUI64, devNonce DevNonce, key AES128Key) (bool, error)

ValidateDownlinkJoinMIC validates the MIC of a downlink join request.

func (PHYPayload) ValidateUplinkDataMIC 

func (p PHYPayload) ValidateUplinkDataMIC(macVersion MACVersion, confFCnt uint32, txDR, txCh uint8, fNwkSIntKey, sNwkSIntKey AES128Key) (bool, error)

ValidateUplinkDataMIC validates the MIC of an uplink data frame. In order to validate the MIC, the FCnt value must first be set to the full 32 bit frame-counter value, as only the 16 least-significant bits are transmitted. The confirmed frame-counter, TX data-rate TX channel index and SNwkSIntKey are only required for LoRaWAN 1.1 and can be left blank otherwise.

func (PHYPayload) ValidateUplinkDataMICF 

func (p PHYPayload) ValidateUplinkDataMICF(fNwkSIntKey AES128Key) (bool, error)

ValidateUplinkDataMICF validates the cmacF part of the uplink data MIC (LoRaWAN 1.1 only). In order to validate the MIC, the FCnt value must first be set to the full 32 bit frame-counter value, as only the 16 least-significant bits are transmitted.

func (PHYPayload) ValidateUplinkJoinMIC 

func (p PHYPayload) ValidateUplinkJoinMIC(key AES128Key) (bool, error)

ValidateUplinkJoinMIC validates the MIC of an uplink join request.

type Payload 

type Payload interface {
	MarshalBinary() (data []byte, err error)
	UnmarshalBinary(uplink bool, data []byte) error
}

Payload is the interface that every payload needs to implement. Since it might be a MACPayload, an indication must be given if the direction is uplink or downlink (it has different payloads for the same CID, based on direction).

type PingSlotChannelAnsPayload 

type PingSlotChannelAnsPayload struct {
	DataRateOK         bool `json:"dataRateOK"`
	ChannelFrequencyOK bool `json:"channelFrequencyOK"`
}

PingSlotChannelAnsPayload represents the PingSlotChannelAns payload.

func (PingSlotChannelAnsPayload) MarshalBinary 

func (p PingSlotChannelAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*PingSlotChannelAnsPayload) UnmarshalBinary 

func (p *PingSlotChannelAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type PingSlotChannelReqPayload 

type PingSlotChannelReqPayload struct {
	Frequency uint32 `json:"frequency"`
	DR        uint8  `json:"dr"`
}

PingSlotChannelReqPayload represents the PingSlotChannelReq payload.

func (PingSlotChannelReqPayload) MarshalBinary 

func (p PingSlotChannelReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*PingSlotChannelReqPayload) UnmarshalBinary 

func (p *PingSlotChannelReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type PingSlotInfoReqPayload 

type PingSlotInfoReqPayload struct {
	Periodicity uint8 `json:"periodicity"`
}

PingSlotInfoReqPayload represents the PingSlotInfoReq payload.

func (PingSlotInfoReqPayload) MarshalBinary 

func (p PingSlotInfoReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*PingSlotInfoReqPayload) UnmarshalBinary 

func (p *PingSlotInfoReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type ProprietaryMACCommandPayload 

type ProprietaryMACCommandPayload struct {
	Bytes []byte `json:"bytes"`
}

ProprietaryMACCommandPayload represents a proprietary payload.

func (ProprietaryMACCommandPayload) MarshalBinary 

func (p ProprietaryMACCommandPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object into a slice of bytes.

func (*ProprietaryMACCommandPayload) UnmarshalBinary 

func (p *ProprietaryMACCommandPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from a slice of bytes.

type RXParamSetupAnsPayload 

type RXParamSetupAnsPayload struct {
	ChannelACK     bool `json:"channelAck"`
	RX2DataRateACK bool `json:"rx2DataRateAck"`
	RX1DROffsetACK bool `json:"rx1DROffsetAck"`
}

RXParamSetupAnsPayload represents the RXParamSetupAns payload.

func (RXParamSetupAnsPayload) MarshalBinary 

func (p RXParamSetupAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*RXParamSetupAnsPayload) UnmarshalBinary 

func (p *RXParamSetupAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type RXParamSetupReqPayload 

type RXParamSetupReqPayload struct {
	Frequency  uint32     `json:"frequency"`
	DLSettings DLSettings `json:"dlSettings"`
}

RXParamSetupReqPayload represents the RXParamSetupReq payload.

func (RXParamSetupReqPayload) MarshalBinary 

func (p RXParamSetupReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*RXParamSetupReqPayload) UnmarshalBinary 

func (p *RXParamSetupReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type RXTimingSetupReqPayload 

type RXTimingSetupReqPayload struct {
	Delay uint8 `json:"delay"` // 0=1s, 1=1s, 2=2s, ... 15=15s
}

RXTimingSetupReqPayload represents the RXTimingSetupReq payload.

func (RXTimingSetupReqPayload) MarshalBinary 

func (p RXTimingSetupReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*RXTimingSetupReqPayload) UnmarshalBinary 

func (p *RXTimingSetupReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type Redundancy 

type Redundancy struct {
	ChMaskCntl uint8 `json:"chMaskCntl"`
	NbRep      uint8 `json:"nbRep"`
}

Redundancy represents the redundancy field.

func (Redundancy) MarshalBinary 

func (r Redundancy) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*Redundancy) UnmarshalBinary 

func (r *Redundancy) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from binary form.

type RejoinParamSetupAnsPayload 

type RejoinParamSetupAnsPayload struct {
	TimeOK bool `json:"timeOK"`
}

RejoinParamSetupAnsPayload represents the RejoinParamSetupAns payload.

func (RejoinParamSetupAnsPayload) MarshalBinary 

func (p RejoinParamSetupAnsPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*RejoinParamSetupAnsPayload) UnmarshalBinary 

func (p *RejoinParamSetupAnsPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type RejoinParamSetupReqPayload 

type RejoinParamSetupReqPayload struct {
	MaxTimeN  uint8 `json:"maxTimeN"`
	MaxCountN uint8 `json:"maxCountN"`
}

RejoinParamSetupReqPayload represents the RejoinParamSetupReq payload.

func (RejoinParamSetupReqPayload) MarshalBinary 

func (p RejoinParamSetupReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*RejoinParamSetupReqPayload) UnmarshalBinary 

func (p *RejoinParamSetupReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type RejoinRequestType02Payload 

type RejoinRequestType02Payload struct {
	RejoinType JoinType `json:"rejoinType"`
	NetID      NetID    `json:"netID"`
	DevEUI     EUI64    `json:"devEUI"`
	RJCount0   uint16   `json:"rjCount0"`
}

RejoinRequestType02Payload represents a rejoin-request of type 0 or 2.

func (RejoinRequestType02Payload) MarshalBinary 

func (p RejoinRequestType02Payload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*RejoinRequestType02Payload) UnmarshalBinary 

func (p *RejoinRequestType02Payload) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type RejoinRequestType1Payload 

type RejoinRequestType1Payload struct {
	RejoinType JoinType `json:"rejoinRequest"`
	JoinEUI    EUI64    `json:"joinEUI"`
	DevEUI     EUI64    `json:"devEUI"`
	RJCount1   uint16   `json:"rjCount1"`
}

RejoinRequestType1Payload represents a rejoin-request of type 1.

func (RejoinRequestType1Payload) MarshalBinary 

func (p RejoinRequestType1Payload) MarshalBinary() ([]byte, error)

MarshalBinary marshals the object in binary form.

func (*RejoinRequestType1Payload) UnmarshalBinary 

func (p *RejoinRequestType1Payload) UnmarshalBinary(uplink bool, data []byte) error

UnmarshalBinary decodes the object from binary form.

type RekeyConfPayload 

type RekeyConfPayload struct {
	ServLoRaWANVersion Version `json:"servLoRaWANVersion"`
}

RekeyConfPayload represents the RekeyConf payload.

func (RekeyConfPayload) MarshalBinary 

func (p RekeyConfPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*RekeyConfPayload) UnmarshalBinary 

func (p *RekeyConfPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type RekeyIndPayload 

type RekeyIndPayload struct {
	DevLoRaWANVersion Version `json:"devLoRaWANVersion"`
}

RekeyIndPayload represents the RekeyInd payload.

func (RekeyIndPayload) MarshalBinary 

func (p RekeyIndPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*RekeyIndPayload) UnmarshalBinary 

func (p *RekeyIndPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type ResetConfPayload 

type ResetConfPayload struct {
	ServLoRaWANVersion Version `json:"servLoRaWANVersion"`
}

ResetConfPayload represents the ResetConf payload.

func (ResetConfPayload) MarshalBinary 

func (p ResetConfPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*ResetConfPayload) UnmarshalBinary 

func (p *ResetConfPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type ResetIndPayload 

type ResetIndPayload struct {
	DevLoRaWANVersion Version `json:"devLoRaWANVersion"`
}

ResetIndPayload represents the ResetInd payload.

func (ResetIndPayload) MarshalBinary 

func (p ResetIndPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*ResetIndPayload) UnmarshalBinary 

func (p *ResetIndPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type TXParamSetupReqPayload 

type TXParamSetupReqPayload struct {
	DownlinkDwelltime DwellTime `json:"downlinkDwellTime"`
	UplinkDwellTime   DwellTime `json:"uplinkDwellTime"`
	MaxEIRP           uint8     `json:"maxEIRPCoded"`
}

TXParamSetupReqPayload represents the TXParamSetupReq payload. Note that the MaxEIRP holds the coded index value, not the actual EIRP. To translate from the actual EIRP to the coded index value, use the GetTXParamSetupEIRPIndex function. To translate a coded index value back to the actual EIRP, use the GetTXParamSetupEIRP function.

func (TXParamSetupReqPayload) MarshalBinary 

func (p TXParamSetupReqPayload) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into a bytes.

func (*TXParamSetupReqPayload) UnmarshalBinary 

func (p *TXParamSetupReqPayload) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

type Version 

type Version struct {
	Minor uint8 `json:"minor"`
}

Version defines LoRaWAN version field.

func (Version) MarshalBinary 

func (v Version) MarshalBinary() ([]byte, error)

MarshalBinary encodes the object into bytes.

func (*Version) UnmarshalBinary 

func (v *Version) UnmarshalBinary(data []byte) error

UnmarshalBinary decodes the object from bytes.

Source Files

View all Source files

Directories

Path Synopsis
Package airtime provides a function for calculating the time on air.
 Package airtime provides a function for calculating the time on air.
applayer
clocksync
Package clocksync implements the Application Layer Clock Synchronization v1.0.0 over LoRaWAN.
 Package clocksync implements the Application Layer Clock Synchronization v1.0.0 over LoRaWAN.
firmwaremanagement
Package firmwaremanagement implements the Firmware Management Protocol v1.0.0 over LoRaWAN.
 Package firmwaremanagement implements the Firmware Management Protocol v1.0.0 over LoRaWAN.
fragmentation
Package fragmentation implements the Fragmented Data Block Transport v1.0.0 over LoRaWAN.
 Package fragmentation implements the Fragmented Data Block Transport v1.0.0 over LoRaWAN.
multicastsetup
Package multicastsetup implements the Remote Multicast Setup v1.0.0 over LoRaWAN.
 Package multicastsetup implements the Remote Multicast Setup v1.0.0 over LoRaWAN.
Package backend provides the LoRaWAN backend interfaces structs.
 Package backend provides the LoRaWAN backend interfaces structs.
joinserver
Package joinserver provides a http.Handler interface which implements the join-server API as speficied by the LoRaWAN Backend Interfaces.
 Package joinserver provides a http.Handler interface which implements the join-server API as speficied by the LoRaWAN Backend Interfaces.
Package band provides band specific defaults and configuration for downlink communication with end-devices.
 Package band provides band specific defaults and configuration for downlink communication with end-devices.
Package gps provides functions to handle Time <> GPS Epoch time conversion.
 Package gps provides functions to handle Time <> GPS Epoch time conversion.
Package sensitivity provides functions for calculating the LoRa sensitivity.
 Package sensitivity provides functions for calculating the LoRa sensitivity.

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