knxnet

package
v0.0.0-...-b41cad7 Latest Latest
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 Go to latest Published: Jun 27, 2023 License: MIT Imports: 10 Imported by: 0

Documentation

Overview

Package knxnet provides the means to parse and generate frames of the KNXnet/IP protocol.

Index

Constants

View Source 
const (
	// ServiceFamilyTypeIPCore is the KNXnet/IP Core family type.
	ServiceFamilyTypeIPCore = 0x02
	// ServiceFamilyTypeIPDeviceManagement is the KNXnet/IP Device Management family type.
	ServiceFamilyTypeIPDeviceManagement = 0x03
	// ServiceFamilyTypeIPTunnelling is the KNXnet/IP Tunnelling family type.
	ServiceFamilyTypeIPTunnelling = 0x04
	// ServiceFamilyTypeIPRouting is the KNXnet/IP Routing family type.
	ServiceFamilyTypeIPRouting = 0x05
	// ServiceFamilyTypeIPRemoteLogging is the KNXnet/IP Remote Logging family type.
	ServiceFamilyTypeIPRemoteLogging = 0x06
	// ServiceFamilyTypeIPRemoteConfigurationAndDiagnosis is the KNXnet/IP Remote Configuration and Diagnosis family type.
	ServiceFamilyTypeIPRemoteConfigurationAndDiagnosis = 0x07
	// ServiceFamilyTypeIPObjectServer is the KNXnet/IP Object Server family type.
	ServiceFamilyTypeIPObjectServer = 0x08
)
View Source 
const (
	// NoError indicates a successful operation.
	NoError = 0x00

	// ErrHostProtocolType indicates an unsupported host protocol.
	ErrHostProtocolType = 0x01

	// ErrVersionNotSupported indicates an unsupported KNXnet/IP protocol version.
	ErrVersionNotSupported = 0x02

	// ErrSequenceNumber indicates that an out-of-order sequence number has been received.
	ErrSequenceNumber = 0x04

	// ErrConnectionID indicates that there is no active data connection with given ID.
	ErrConnectionID = 0x21

	// ErrConnectionType indicates an unsupported connection type.
	ErrConnectionType = 0x22

	// ErrConnectionOption indicates an unsupported connection option.
	ErrConnectionOption = 0x23

	// ErrNoMoreConnections is returned by a Tunnelling Server when it cannot accept more
	// connections.
	ErrNoMoreConnections = 0x24

	// ErrNoMoreUniqueConnections is returned by a Tunnelling Server when it has no free Individual
	// Address available that could be used by the connection.
	ErrNoMoreUniqueConnections = 0x25

	// ErrDataConnection indicates an error with a data connection.
	ErrDataConnection = 0x26

	// ErrKNXConnection indicates an error with a KNX connection.
	ErrKNXConnection = 0x27

	// ErrTunnellingLayer indicates an unsupported tunnelling layer.
	ErrTunnellingLayer = 0x29
)

What follows are errors codes defined in the KNX standard.

Variables

View Source 
var (
	ErrHeaderLength  = errors.New("header length is not 6")
	ErrHeaderVersion = errors.New("protocol version is not 16")
)

These are errors that might occur during unpacking of the header.

Functions

func AllocAndPack 

func AllocAndPack(srv ServicePackable) []byte

AllocAndPack allocates a buffer and packs the KNXnet/IP packet into it.

func Pack 

func Pack(buffer []byte, srv ServicePackable)

Pack generates a KNXnet/IP packet. Utilize Size() to determine the required size of the buffer.

func Size 

func Size(service ServicePackable) uint

Size returns the size of a KNXnet/IP packet.

func Unpack 

func Unpack(data []byte, srv *Service) (uint, error)

Unpack parses a KNXnet/IP packet and retrieves its service payload.

On success, the variable pointed to by srv will contain a pointer to a service type. You can cast it to the matching against service type, like so: 

var srv Service

_, err := Unpack(r, &srv)
if err != nil {
	log.Fatal(err)
}

switch srv := srv.(type) {
	case *ConnRes:
		// ...

	case *TunnelReq:
		// ...

	// ...
}

func UnpackHeader 

func UnpackHeader(data []byte, serviceID *ServiceID, totalLen *uint16) (uint, error)

UnpackHeader extracts information from the KNXnet/IP packet header.

Types

type Address 

type Address [4]byte

Address is an IPv4 address.

func (Address) String 

func (addr Address) String() string

String formats the address.

type ConnReq 

type ConnReq struct {
	Control HostInfo
	Tunnel  HostInfo
	Layer   TunnelLayer
}

A ConnReq requests a connection to a gateway.

func (*ConnReq) Pack 

func (req *ConnReq) Pack(buffer []byte)

Pack assembles the service payload in the given buffer.

func (ConnReq) Service 

func (ConnReq) Service() ServiceID

Service returns the service identifier for connection requests.

func (ConnReq) Size 

func (ConnReq) Size() uint

Size returns the packed size.

func (*ConnReq) Unpack 

func (req *ConnReq) Unpack(data []byte) (n uint, err error)

Unpack parses the given service payload in order to initialize the structure.

type ConnRes 

type ConnRes struct {
	Channel uint8
	Status  ErrCode
	Control HostInfo
}

ConnRes is a response to a connection request.

func (*ConnRes) Pack 

func (res *ConnRes) Pack(buffer []byte)

Pack assembles the service payload in the given buffer.

func (ConnRes) Service 

func (ConnRes) Service() ServiceID

Service returns the service identifier for connection responses.

func (*ConnRes) Size 

func (res *ConnRes) Size() uint

Size returns the packed size.

func (*ConnRes) Unpack 

func (res *ConnRes) Unpack(data []byte) (n uint, err error)

Unpack parses the given service payload in order to initialize the structure.

type ConnStateReq 

type ConnStateReq struct {
	Channel uint8
	Status  ErrCode
	Control HostInfo
}

A ConnStateReq requests the connection state from a gateway.

func (*ConnStateReq) Pack 

func (req *ConnStateReq) Pack(buffer []byte)

Pack assembles the service payload in the given buffer.

func (ConnStateReq) Service 

func (ConnStateReq) Service() ServiceID

Service returns the service identifier for connection state requests.

func (ConnStateReq) Size 

func (ConnStateReq) Size() uint

Size returns the packed size.

func (*ConnStateReq) Unpack 

func (req *ConnStateReq) Unpack(data []byte) (uint, error)

Unpack parses the given service payload in order to initialize the structure.

type ConnStateRes 

type ConnStateRes struct {
	Channel uint8
	Status  ErrCode
}

A ConnStateRes is a response to a connection state request.

func (*ConnStateRes) Pack 

func (res *ConnStateRes) Pack(buffer []byte)

Pack assembles the service payload in the given buffer.

func (ConnStateRes) Service 

func (ConnStateRes) Service() ServiceID

Service returns the service identifier for connection state responses.

func (ConnStateRes) Size 

func (ConnStateRes) Size() uint

Size returns the packed size.

func (*ConnStateRes) Unpack 

func (res *ConnStateRes) Unpack(data []byte) (uint, error)

Unpack parses the given service payload in order to initialize the structure.

type DescriptionBlock 

type DescriptionBlock struct {
	DeviceHardware    DeviceInformationBlock
	SupportedServices SupportedServicesDIB
	UnknownBlocks     []UnknownDescriptionBlock
}

DescriptionBlock is returned by a Search Request or a Description Request.

func (*DescriptionBlock) Unpack 

func (di *DescriptionBlock) Unpack(data []byte) (n uint, err error)

Unpack parses the given service payload in order to initialize the Description Block. It can cope with not in sequence and unknown Device Information Blocks (DIB).

type DescriptionReq 

type DescriptionReq struct {
	HostInfo
}

A DescriptionReq requests a description from a particular KNXnet/IP server via unicast.

func NewDescriptionReq 

func NewDescriptionReq(addr net.Addr) (*DescriptionReq, error)

NewDescriptionReq creates a new Description Request, addr defines where KNXnet/IP server should send the response to.

func (DescriptionReq) Service 

func (DescriptionReq) Service() ServiceID

Service returns the service identifier for a Description Request.

type DescriptionRes 

type DescriptionRes DescriptionBlock

A DescriptionRes is a Description Response from a KNXnet/IP server.

func (*DescriptionRes) Pack 

func (res *DescriptionRes) Pack(buffer []byte)

Pack assembles the Description Response structure in the given buffer.

func (DescriptionRes) Service 

func (DescriptionRes) Service() ServiceID

Service returns the service identifier for Description Response.

func (DescriptionRes) Size 

func (res DescriptionRes) Size() uint

Size returns the packed size of a Description Response.

func (*DescriptionRes) Unpack 

func (res *DescriptionRes) Unpack(data []byte) (n uint, err error)

Unpack parses the given service payload in order to initialize the Description Response.

type DescriptionType 

type DescriptionType uint8

DescriptionType describes the type of a DeviceInformationBlock. 

const (
	// DescriptionTypeDeviceInfo describes Device information e.g. KNX medium.
	DescriptionTypeDeviceInfo DescriptionType = 0x01

	// DescriptionTypeSupportedServiceFamilies describes Service families supported by the device.
	DescriptionTypeSupportedServiceFamilies DescriptionType = 0x02

	// DescriptionTypeIPConfig describes IP configuration.
	DescriptionTypeIPConfig DescriptionType = 0x03

	// DescriptionTypeIPCurrentConfig describes current IP configuration.
	DescriptionTypeIPCurrentConfig DescriptionType = 0x04

	// DescriptionTypeKNXAddresses describes KNX addresses.
	DescriptionTypeKNXAddresses DescriptionType = 0x05

	// DescriptionTypeManufacturerData describes a DIB structure for further data defined by device manufacturer.
	DescriptionTypeManufacturerData DescriptionType = 0xfe
)

type DeviceInformationBlock 

type DeviceInformationBlock struct {
	Type                    DescriptionType
	Medium                  KNXMedium
	Status                  DeviceStatus
	Source                  cemi.IndividualAddr
	ProjectIdentifier       ProjectInstallationIdentifier
	SerialNumber            DeviceSerialNumber
	RoutingMulticastAddress Address
	HardwareAddr            net.HardwareAddr
	FriendlyName            string
}

DeviceInformationBlock contains information about a device.

func (*DeviceInformationBlock) Pack 

func (info *DeviceInformationBlock) Pack(buffer []byte)

Pack assembles the device information structure in the given buffer.

func (DeviceInformationBlock) Size 

func (DeviceInformationBlock) Size() uint

Size returns the packed size.

func (*DeviceInformationBlock) Unpack 

func (info *DeviceInformationBlock) Unpack(data []byte) (n uint, err error)

Unpack parses the given data in order to initialize the structure.

type DeviceSerialNumber 

type DeviceSerialNumber [6]byte

DeviceSerialNumber desribes the serial number of a device.

type DeviceState 

type DeviceState uint8

DeviceState indicates the state of a device. 

const (
	DeviceStateOk       DeviceState = 0x00
	DeviceStateKNXError DeviceState = 0x01
	DeviceStateIPError  DeviceState = 0x02
	DeviceStateReserved DeviceState = 0xfc
)

These are known device states.

func (DeviceState) String 

func (status DeviceState) String() string

String converts the device status to a string.

type DeviceStatus 

type DeviceStatus uint8

DeviceStatus describes the device status.

type DiscReq 

type DiscReq struct {
	Channel uint8
	Status  uint8
	Control HostInfo
}

A DiscReq requests a connection to be terminated.

func (*DiscReq) Pack 

func (req *DiscReq) Pack(buffer []byte)

Pack assembles the service payload in the given buffer.

func (DiscReq) Service 

func (DiscReq) Service() ServiceID

Service returns the service identifier for disconnect requests.

func (DiscReq) Size 

func (DiscReq) Size() uint

Size returns the packed size.

func (*DiscReq) Unpack 

func (req *DiscReq) Unpack(data []byte) (uint, error)

Unpack parses the given service payload in order to initialize the structure.

type DiscRes 

type DiscRes struct {
	Channel uint8
	Status  uint8
}

A DiscRes is a response to a disconnect request.

func (*DiscRes) Pack 

func (res *DiscRes) Pack(data []byte)

Pack assembles the service payload in the given buffer.

func (DiscRes) Service 

func (DiscRes) Service() ServiceID

Service returns the service identifier for disconnect responses.

func (DiscRes) Size 

func (DiscRes) Size() uint

Size returns the packed size.

func (*DiscRes) Unpack 

func (res *DiscRes) Unpack(data []byte) (uint, error)

Unpack parses the given service payload in order to initialize the structure.

type ErrCode 

type ErrCode uint8

A ErrCode identifies an error type.

func (ErrCode) Error 

func (err ErrCode) Error() string

Error implements the error interface

func (ErrCode) String 

func (err ErrCode) String() string

String returns a string representation of the error code.

type HostInfo 

type HostInfo struct {
	Protocol Protocol
	Address  Address
	Port     Port
}

HostInfo contains information about a host.

func HostInfoFromAddress 

func HostInfoFromAddress(address net.Addr) (HostInfo, error)

HostInfoFromAddress returns HostInfo from an address.

func (HostInfo) Equals 

func (info HostInfo) Equals(other HostInfo) bool

Equals checks whether both structures are equal.

func (*HostInfo) Pack 

func (info *HostInfo) Pack(buffer []byte)

Pack assembles the Host Info structure in the given buffer.

func (HostInfo) Size 

func (HostInfo) Size() uint

Size returns the packed size.

func (*HostInfo) Unpack 

func (info *HostInfo) Unpack(data []byte) (n uint, err error)

Unpack parses the given data in order to initialize the structure.

type KNXMedium 

type KNXMedium uint8

KNXMedium describes the KNX medium type. 

const (
	// KNXMediumTP1 is the TP1 medium
	KNXMediumTP1 KNXMedium = 0x02
	// KNXMediumPL110 is the PL110 medium
	KNXMediumPL110 KNXMedium = 0x04
	// KNXMediumRF is the RF medium
	KNXMediumRF KNXMedium = 0x10
	// KNXMediumIP is the IP medium
	KNXMediumIP KNXMedium = 0x20
)

type Port 

type Port uint16

Port is a port number.

type ProjectInstallationIdentifier 

type ProjectInstallationIdentifier uint16

ProjectInstallationIdentifier describes a KNX project installation identifier.

type Protocol 

type Protocol uint8

Protocol specifies a host protocol to use. 

const (
	// UDP4 indicates a communication using UDP over IPv4.
	UDP4 Protocol = 1

	// TCP4 indicates a communication using TCP over IPv4.
	TCP4 Protocol = 2
)

type RouterSocket 

type RouterSocket struct {
	// contains filtered or unexported fields
}

RouterSocket is a UDP socket for KNXnet/IP packet exchange.

func ListenRouter 

func ListenRouter(multicastAddress string) (*RouterSocket, error)

ListenRouter creates a new Socket which can be used to exchange KNXnet/IP packets with multiple endpoints.

func ListenRouterOnInterface 

func ListenRouterOnInterface(ifi *net.Interface, multicastAddress string, multicastLoopbackEnabled bool) (*RouterSocket, error)

ListenRouterOnInterface creates a new Socket which can be used to exchange KNXnet/IP packets with multiple endpoints. The interface is used to send or listen for KNXnet/IP packets. If the interface is nil, the system-assigned multicast interface is used.

func (*RouterSocket) Addr 

func (sock *RouterSocket) Addr() *net.UDPAddr

Addr returns the multicast destination address.

func (*RouterSocket) Close 

func (sock *RouterSocket) Close() error

Close shuts the socket down. This will indirectly terminate the associated workers.

func (*RouterSocket) Inbound 

func (sock *RouterSocket) Inbound() <-chan Service

Inbound provides a channel from which you can retrieve incoming packets.

func (*RouterSocket) LocalAddr 

func (sock *RouterSocket) LocalAddr() net.Addr

LocalAddr returns the local UDP address.

func (*RouterSocket) Send 

func (sock *RouterSocket) Send(payload ServicePackable) error

Send transmits a KNXnet/IP packet.

type RoutingBusy 

type RoutingBusy struct {
	// Device status
	Status DeviceState

	// Time to wait
	WaitTime time.Duration

	// If set to 0x00, must pause sending
	Control uint16
}

A RoutingBusy indicates that a router is busy.

func (RoutingBusy) Service 

func (RoutingBusy) Service() ServiceID

Service returns the service identifiers for routing busy indication.

func (*RoutingBusy) Unpack 

func (rl *RoutingBusy) Unpack(data []byte) (n uint, err error)

Unpack parses the given service payload in order to initialize the structure.

type RoutingInd 

type RoutingInd struct {
	Payload cemi.Message
}

A RoutingInd indicates to one or more routers that the contents shall be routed.

func (*RoutingInd) Pack 

func (ind *RoutingInd) Pack(buffer []byte)

Pack assembles the service payload in the given buffer.

func (RoutingInd) Service 

func (RoutingInd) Service() ServiceID

Service returns the service identifiers for routing indication.

func (*RoutingInd) Size 

func (ind *RoutingInd) Size() uint

Size returns the packed size.

func (*RoutingInd) Unpack 

func (ind *RoutingInd) Unpack(data []byte) (uint, error)

Unpack parses the given service payload in order to initialize the structure.

type RoutingLost 

type RoutingLost struct {
	// Device status
	Status DeviceState

	// Number of packets lost
	Count uint16
}

A RoutingLost indicates that a packet got lost.

func (RoutingLost) Service 

func (RoutingLost) Service() ServiceID

Service returns the service identifiers for routing lost indication.

func (*RoutingLost) Unpack 

func (rl *RoutingLost) Unpack(data []byte) (uint, error)

Unpack parses the given service payload in order to initialize the structure.

type SearchReq 

type SearchReq struct {
	HostInfo
}

A SearchReq requests a discovery from all KNXnet/IP servers via multicast.

func NewSearchReq 

func NewSearchReq(addr net.Addr) (*SearchReq, error)

NewSearchReq creates a new SearchReq, addr defines where KNXnet/IP server should send the reponse to.

func (SearchReq) Service 

func (SearchReq) Service() ServiceID

Service returns the service identifier for Search Request.

type SearchRes 

type SearchRes struct {
	Control      HostInfo
	DescriptionB DescriptionBlock
}

A SearchRes is a Search Response from a KNXnet/IP server.

func (*SearchRes) Pack 

func (res *SearchRes) Pack(buffer []byte)

Pack assembles the Search Response structure in the given buffer.

func (SearchRes) Service 

func (SearchRes) Service() ServiceID

Service returns the service identifier for the Search Response.

func (SearchRes) Size 

func (res SearchRes) Size() uint

Size returns the packed size.

func (*SearchRes) Unpack 

func (res *SearchRes) Unpack(data []byte) (n uint, err error)

Unpack parses the given service payload in order to initialize the Search Response structure.

type Service 

type Service interface {
	Service() ServiceID
}

Service describes a KNXnet/IP service.

type ServiceFamily 

type ServiceFamily struct {
	Type    ServiceFamilyType
	Version uint8
}

ServiceFamily describes a KNXnet service supported by a device.

func (*ServiceFamily) Pack 

func (f *ServiceFamily) Pack(buffer []byte)

Pack assembles the service family structure in the given buffer.

func (ServiceFamily) Size 

func (ServiceFamily) Size() uint

Size returns the packed size.

func (*ServiceFamily) Unpack 

func (f *ServiceFamily) Unpack(data []byte) (n uint, err error)

Unpack parses the given data in order to initialize the structure.

type ServiceFamilyType 

type ServiceFamilyType uint8

ServiceFamilyType describes a KNXnet service family type.

type ServiceID 

type ServiceID uint16

ServiceID identifies the service that is contained in a packet. 

const (
	SearchReqService    ServiceID = 0x0201
	SearchResService    ServiceID = 0x0202
	DescrReqService     ServiceID = 0x0203
	DescrResService     ServiceID = 0x0204
	ConnReqService      ServiceID = 0x0205
	ConnResService      ServiceID = 0x0206
	ConnStateReqService ServiceID = 0x0207
	ConnStateResService ServiceID = 0x0208
	DiscReqService      ServiceID = 0x0209
	DiscResService      ServiceID = 0x020a
	TunnelReqService    ServiceID = 0x0420
	TunnelResService    ServiceID = 0x0421
	RoutingIndService   ServiceID = 0x0530
	RoutingLostService  ServiceID = 0x0531
	RoutingBusyService  ServiceID = 0x0532
)

Currently supported services.

func (ServiceID) String 

func (srv ServiceID) String() string

String generates a string representation of the service.

type ServicePackable 

type ServicePackable interface {
	util.Packable
	Service
}

ServicePackable combines Packable and Service.

type Socket 

type Socket interface {
	Send(payload ServicePackable) error
	Inbound() <-chan Service
	Close() error
	LocalAddr() net.Addr
}

A Socket is a socket, duh.

type SupportedServicesDIB 

type SupportedServicesDIB struct {
	Type     DescriptionType
	Families []ServiceFamily
}

SupportedServicesDIB contains information about the supported services of a device.

func (*SupportedServicesDIB) Pack 

func (sdib *SupportedServicesDIB) Pack(buffer []byte)

Pack assembles the supported services structure in the given buffer.

func (SupportedServicesDIB) Size 

func (sdib SupportedServicesDIB) Size() uint

Size returns the packed size.

func (*SupportedServicesDIB) Unpack 

func (sdib *SupportedServicesDIB) Unpack(data []byte) (n uint, err error)

Unpack parses the given data in order to initialize the structure.

type TunnelLayer 

type TunnelLayer uint8

TunnelLayer identifies the tunnelling layer for a tunnelling connection. 

const (
	// TunnelLayerData establishes a data-link layer tunnel. Send and receive L_Data.* messages.
	TunnelLayerData TunnelLayer = 0x02

	// TunnelLayerRaw establishes a raw tunnel. Send and receive L_Raw.* messages.
	TunnelLayerRaw TunnelLayer = 0x04

	// TunnelLayerBusmon establishes a bus monitor tunnel. Receive L_Busmon.ind messages.
	TunnelLayerBusmon TunnelLayer = 0x80
)

type TunnelReq 

type TunnelReq struct {
	// Communication channel
	Channel uint8

	// Sequential number, used to track acknowledgements
	SeqNumber uint8

	// Data to be tunneled
	Payload cemi.Message
}

A TunnelReq asks a gateway to transmit data.

func (*TunnelReq) Pack 

func (req *TunnelReq) Pack(buffer []byte)

Pack assembles the service payload in the given buffer.

func (TunnelReq) Service 

func (TunnelReq) Service() ServiceID

Service returns the service identifiers for tunnel requests.

func (*TunnelReq) Size 

func (req *TunnelReq) Size() uint

Size returns the packed size.

func (*TunnelReq) Unpack 

func (req *TunnelReq) Unpack(data []byte) (n uint, err error)

Unpack parses the given service payload in order to initialize the structure.

type TunnelRes 

type TunnelRes struct {
	// Communication channel
	Channel uint8

	// Identifies the request that is being acknowledged
	SeqNumber uint8

	// Status code, determines whether the tunneling succeeded or not
	Status ErrCode
}

A TunnelRes is a response to a TunnelRequest. It acts as an acknowledgement.

func (*TunnelRes) Pack 

func (res *TunnelRes) Pack(buffer []byte)

Pack assembles the service payload in the given buffer.

func (TunnelRes) Service 

func (TunnelRes) Service() ServiceID

Service returns the service identifier for tunnel responses.

func (TunnelRes) Size 

func (TunnelRes) Size() uint

Size returns the packed size.

func (*TunnelRes) Unpack 

func (res *TunnelRes) Unpack(data []byte) (n uint, err error)

Unpack parses the given service payload in order to initialize the structure.

type TunnelSocket 

type TunnelSocket struct {
	// contains filtered or unexported fields
}

TunnelSocket is a UDP socket for KNXnet/IP packet exchange.

func DialTunnelTCP 

func DialTunnelTCP(address string) (*TunnelSocket, error)

DialTunnelTCP creates a new Socket which can used to exchange KNXnet/IP packets with a single endpoint through TCP.

func DialTunnelUDP 

func DialTunnelUDP(address string) (*TunnelSocket, error)

DialTunnelUDP creates a new Socket which can used to exchange KNXnet/IP packets with a single endpoint through UDP.

func (*TunnelSocket) Close 

func (sock *TunnelSocket) Close() error

Close shuts the socket down. This will indirectly terminate the associated workers.

func (*TunnelSocket) Inbound 

func (sock *TunnelSocket) Inbound() <-chan Service

Inbound provides a channel from which you can retrieve incoming packets.

func (*TunnelSocket) LocalAddr 

func (sock *TunnelSocket) LocalAddr() net.Addr

LocalAddr returns the local UDP address.

func (*TunnelSocket) Send 

func (sock *TunnelSocket) Send(payload ServicePackable) error

Send transmits a KNXnet/IP packet.

type UnknownDescriptionBlock 

type UnknownDescriptionBlock struct {
	Type DescriptionType
	Data []byte
}

UnknownDescriptionBlock is a placeholder for unknown DIBs.

func (*UnknownDescriptionBlock) Unpack 

func (u *UnknownDescriptionBlock) Unpack(data []byte) (n uint, err error)

Unpack Unknown Description Blocks into a buffer.

type UnknownService 

type UnknownService struct {
	Data []byte
	// contains filtered or unexported fields
}

UnknownService is the payload of an unknown service.

func (*UnknownService) Pack 

func (us *UnknownService) Pack(buffer []byte)

Pack the payload into the buffer.

func (*UnknownService) Service 

func (us *UnknownService) Service() ServiceID

Service returns the service identifier.

func (*UnknownService) Size 

func (us *UnknownService) Size() uint

Size returns the size of the payload.

func (*UnknownService) Unpack 

func (us *UnknownService) Unpack(data []byte) (uint, error)

Unpack copies the entire data.

Source Files

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