pcapgo

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Versions in this module

v1

v1.5.0

Nov 2, 2025

v1.4.0

Aug 1, 2025

Changes in this version

+ type NgEpbFlag uint32

+ const NgEpbFlagDirectionInbound

+ const NgEpbFlagDirectionMask

+ const NgEpbFlagDirectionOutbound

+ const NgEpbFlagDirectionUnknown

+ const NgEpbFlagFCSLengthMask

+ const NgEpbFlagFCSLengthNotAvailable

+ const NgEpbFlagLinkLayerDependentErrorCRC

+ const NgEpbFlagLinkLayerDependentErrorInterFrameGap

+ const NgEpbFlagLinkLayerDependentErrorMask

+ const NgEpbFlagLinkLayerDependentErrorPacketTooLong

+ const NgEpbFlagLinkLayerDependentErrorPacketTooShort

+ const NgEpbFlagLinkLayerDependentErrorPreamble

+ const NgEpbFlagLinkLayerDependentErrorStartFrameDelimiter

+ const NgEpbFlagLinkLayerDependentErrorSymbol

+ const NgEpbFlagLinkLayerDependentErrorUnalignedFrame

+ const NgEpbFlagReceptionTypeBroadcast

+ const NgEpbFlagReceptionTypeMask

+ const NgEpbFlagReceptionTypeMulticast

+ const NgEpbFlagReceptionTypeNotSpecified

+ const NgEpbFlagReceptionTypePromiscuous

+ const NgEpbFlagReceptionTypeUnicast

+ func NewNgEpbFlagFCSLength(n uint8) NgEpbFlag

+ type NgEpbFlags struct

+ Direction NgEpbFlag

+ FCSLen NgEpbFlag

+ LinkLayerErr NgEpbFlag

+ Reception NgEpbFlag

+ func (f *NgEpbFlags) FromUint32(value uint32)

+ func (f *NgEpbFlags) ToUint32() uint32

+ type NgEpbHash struct

+ Algorithm NgEpbHashAlgorithm

+ Hash []byte

+ type NgEpbHashAlgorithm uint8

+ const NgEpbHashAlgorithm2sComplement

+ const NgEpbHashAlgorithmCRC32

+ const NgEpbHashAlgorithmMD5

+ const NgEpbHashAlgorithmSHA1

+ const NgEpbHashAlgorithmToeplitz

+ const NgEpbHashAlgorithmXOR

+ type NgEpbVerdict struct

+ Data []byte

+ Type NgEpbVerdictType

+ type NgEpbVerdictType uint8

+ const NgEpbVerdictTypeHardware

+ const NgEpbVerdictTypeLinuxeBPFTC

+ const NgEpbVerdictTypeLinuxeBPFXDP

+ type NgPacketOptions struct

+ Comments []string

+ DropCount *uint64

+ Flags *NgEpbFlags

+ Hashes []NgEpbHash

+ PacketID *uint64

+ Queue *uint32

+ Verdicts []NgEpbVerdict

type NgReader

+ func (r *NgReader) ReadPacketDataWithOptions() (data []byte, ci gopacket.CaptureInfo, opts NgPacketOptions, err error)

+ func (r *NgReader) ZeroCopyReadPacketDataWithOptions() (data []byte, ci gopacket.CaptureInfo, opts NgPacketOptions, err error)

type NgWriter

+ func (w *NgWriter) WritePacketWithOptions(ci gopacket.CaptureInfo, data []byte, opts NgPacketOptions) error

v1.3.1

Nov 11, 2024

v1.3.0

Aug 24, 2024

Changes in this version

+ type NgAddress interface

+ Len func() int

+ type NgEUIAddress struct

+ Addr net.HardwareAddr

+ func (addr *NgEUIAddress) Len() int

+ type NgIPAddress struct

+ Addr netip.Addr

+ func (addr *NgIPAddress) Len() int

+ type NgNameRecord struct

+ Addr NgAddress

+ Names []string

type NgReader

+ func (r *NgReader) NNames() int

+ func (r *NgReader) Name(i int) (NgNameRecord, error)

v1.2.0

Nov 25, 2023

v1.1.1

Jun 27, 2023

v1.1.0

Mar 25, 2023

v1.0.0

Jan 20, 2023

v0

v0.1.0

Oct 6, 2022

Changes in this version

+ const DSB_SECRETS_TYPE_SSH

+ const DSB_SECRETS_TYPE_TLS

+ const DSB_SECRETS_TYPE_WIREGUARD

+ const DSB_SECRETS_TYPE_ZIGBEE_APS_KEY

+ const DSB_SECRETS_TYPE_ZIGBEE_NWK_KEY

+ const NgNoValue64

+ const PcapngBlockHeadersize

+ const PcapngDecryptionSecretsBlockSize

+ var DefaultNgInterface = NgInterface

+ var DefaultNgReaderOptions = NgReaderOptions

+ var DefaultNgWriterOptions = NgWriterOptions

+ var ErrNgLinkTypeMismatch = errors.New("Link type of current interface is different from first one")

+ var ErrNgVersionMismatch = errors.New("Unknown pcapng Version in Section Header")

+ var ErrUnknownSecretsType = errors.New("Unknown Decryption Secrets Block (DSB) type")

+ type EthernetHandle struct — linux/amd64

+ func NewEthernetHandle(ifname string) (*EthernetHandle, error)

+ func (h *EthernetHandle) Close()

+ func (h *EthernetHandle) GetCaptureLength() int

+ func (h *EthernetHandle) LocalAddr() net.HardwareAddr

+ func (h *EthernetHandle) ReadPacketData() ([]byte, gopacket.CaptureInfo, error)

+ func (h *EthernetHandle) SetBPF(filter []bpf.RawInstruction) error

+ func (h *EthernetHandle) SetCaptureLength(len int) error

+ func (h *EthernetHandle) SetPromiscuous(b bool) error

+ func (h *EthernetHandle) Stats() (*unix.TpacketStats, error)

+ func (h *EthernetHandle) ZeroCopyReadPacketData() ([]byte, gopacket.CaptureInfo, error)

+ type NgInterface struct

+ Comment string

+ Description string

+ Filter string

+ LinkType layers.LinkType

+ Name string

+ OS string

+ SnapLength uint32

+ Statistics NgInterfaceStatistics

+ TimestampOffset uint64

+ TimestampResolution NgResolution

+ func (i NgInterface) Resolution() gopacket.TimestampResolution

+ type NgInterfaceStatistics struct

+ Comment string

+ EndTime time.Time

+ LastUpdate time.Time

+ PacketsDropped uint64

+ PacketsReceived uint64

+ StartTime time.Time

+ type NgReader struct

+ func NewNgReader(r io.Reader, options NgReaderOptions) (*NgReader, error)

+ func (r *NgReader) Interface(i int) (NgInterface, error)

+ func (r *NgReader) LinkType() layers.LinkType

+ func (r *NgReader) NInterfaces() int

+ func (r *NgReader) ReadPacketData() (data []byte, ci gopacket.CaptureInfo, err error)

+ func (r *NgReader) Resolution() gopacket.TimestampResolution

+ func (r *NgReader) SectionInfo() NgSectionInfo

+ func (r *NgReader) SkipSection() error

+ func (r *NgReader) ZeroCopyReadPacketData() (data []byte, ci gopacket.CaptureInfo, err error)

+ type NgReaderOptions struct

+ ErrorOnMismatchingLinkType bool

+ SectionEndCallback func([]NgInterface, NgSectionInfo)

+ SkipUnknownVersion bool

+ StatisticsCallback func(int, NgInterfaceStatistics)

+ WantMixedLinkType bool

+ type NgResolution uint8

+ func (r NgResolution) Binary() bool

+ func (r NgResolution) Exponent() uint8

+ func (r NgResolution) ToTimestampResolution() (ret gopacket.TimestampResolution)

+ type NgSectionInfo struct

+ Application string

+ Comment string

+ Hardware string

+ OS string

+ type NgWriter struct

+ func NewNgWriter(w io.Writer, linkType layers.LinkType) (*NgWriter, error)

+ func NewNgWriterInterface(w io.Writer, intf NgInterface, options NgWriterOptions) (*NgWriter, error)

+ func (w *NgWriter) AddInterface(intf NgInterface) (id int, err error)

+ func (w *NgWriter) Flush() error

+ func (w *NgWriter) WriteDecryptionSecretsBlock(secretType uint32, secretPayload []byte) error

+ func (w *NgWriter) WriteInterfaceStats(intf int, stats NgInterfaceStatistics) error

+ func (w *NgWriter) WritePacket(ci gopacket.CaptureInfo, data []byte) error

+ type NgWriterOptions struct

+ SectionInfo NgSectionInfo

+ type Reader struct

+ func NewReader(r io.Reader) (*Reader, error)

+ func (r *Reader) LinkType() layers.LinkType

+ func (r *Reader) ReadPacketData() (data []byte, ci gopacket.CaptureInfo, err error)

+ func (r *Reader) Resolution() gopacket.TimestampResolution

+ func (r *Reader) SetSnaplen(newSnaplen uint32)

+ func (r *Reader) Snaplen() uint32

+ func (r *Reader) String() string

+ func (r *Reader) ZeroCopyReadPacketData() (data []byte, ci gopacket.CaptureInfo, err error)

+ type SnoopReader struct

+ func NewSnoopReader(r io.Reader) (*SnoopReader, error)

+ func (r *SnoopReader) LinkType() (*layers.LinkType, error)

+ func (r *SnoopReader) ReadPacketData() (data []byte, ci gopacket.CaptureInfo, err error)

+ func (r *SnoopReader) ZeroCopyReadPacketData() (data []byte, ci gopacket.CaptureInfo, err error)

+ type Writer struct

+ func NewWriter(w io.Writer) *Writer

+ func NewWriterNanos(w io.Writer) *Writer

+ func (w *Writer) WriteFileHeader(snaplen uint32, linktype layers.LinkType) error

+ func (w *Writer) WritePacket(ci gopacket.CaptureInfo, data []byte) error

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