device

package
v0.2.0 Latest Latest
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 Go to latest Published: Dec 2, 2025 License: GPL-3.0 Imports: 21 Imported by: 0

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Functions

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Types

type Device 

type Device interface {
	stack.LinkEndpoint

	// Name returns the current name of the device.
	Name() string

	// Type returns the driver type of the device.
	Type() string
}

Device is the interface that implemented by network layer devices (e.g. tun), and easy to use as stack.LinkEndpoint.

func Open 

func Open(captureCfg cfg.Capture, ifce net.Interface, netConfig *NetworkConfig, stacker func() Stacker) (_ Device, err error)

type Endpoint added in v0.2.0 

type Endpoint struct {
	nested.Endpoint
	// contains filtered or unexported fields
}

Endpoint wraps a LinkEndpoint and captures all packets to PCAP

func NewEthSniffer added in v0.2.0 

func NewEthSniffer(lower stack.LinkEndpoint, outputFile string) (*Endpoint, error)

NewEthSniffer creates a LinkEndpoint wrapper that captures packets to PCAP

func (*Endpoint) Close added in v0.2.0 

func (e *Endpoint) Close()

Close closes the PCAP capture

func (*Endpoint) DeliverNetworkPacket added in v0.2.0 

func (e *Endpoint) DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer)

DeliverNetworkPacket implements stack.NetworkDispatcher - captures incoming packets

func (*Endpoint) WritePackets added in v0.2.0 

func (e *Endpoint) WritePackets(pkts stack.PacketBufferList) (int, tcpip.Error)

WritePackets implements stack.LinkEndpoint - captures outgoing packets

type NetworkConfig added in v0.1.0 

type NetworkConfig struct {
	Network  *net.IPNet
	LocalIP  net.IP
	LocalMAC net.HardwareAddr
	MTU      uint32
}

NetworkConfig holds the parsed network configuration

type PCAP 

type PCAP struct {
	stack.LinkEndpoint

	Interface net.Interface
	// contains filtered or unexported fields
}

func (*PCAP) Close 

func (t *PCAP) Close()

func (*PCAP) Name 

func (t *PCAP) Name() string

func (*PCAP) Read 

func (t *PCAP) Read() []byte

func (*PCAP) SetHardwareAddr 

func (t *PCAP) SetHardwareAddr(srcIP net.IP, srcMAC net.HardwareAddr)

func (*PCAP) Type 

func (t *PCAP) Type() string

func (*PCAP) Write 

func (t *PCAP) Write(p []byte) (n int, err error)

type Stacker 

type Stacker interface {
	AddStaticNeighbor(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address, linkAddr tcpip.LinkAddress) tcpip.Error
	AddProtocolAddress(id tcpip.NICID, protocolAddress tcpip.ProtocolAddress, properties stack.AddressProperties) tcpip.Error
}

Source Files

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Directories

Path Synopsis
Package iobased provides the implementation of io.ReadWriter based data-link layer endpoints.
 Package iobased provides the implementation of io.ReadWriter based data-link layer endpoints.

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