package nested

import "gvisor.dev/gvisor/pkg/tcpip/link/nested"

Package nested provides helpers to implement the pattern of nested stack.LinkEndpoints.

Index ¶

• type Endpoint
• func (e *Endpoint) ARPHardwareType() header.ARPHardwareType
• func (e *Endpoint) AddHeader(pkt *stack.PacketBuffer)
• func (e *Endpoint) Attach(dispatcher stack.NetworkDispatcher)
• func (e *Endpoint) Capabilities() stack.LinkEndpointCapabilities
• func (e *Endpoint) Child() stack.LinkEndpoint
• func (e *Endpoint) Close()
• func (e *Endpoint) DeliverLinkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer)
• func (e *Endpoint) DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer)
• func (e *Endpoint) GSOMaxSize() uint32
• func (e *Endpoint) Init(child stack.LinkEndpoint, embedder stack.NetworkDispatcher)
• func (e *Endpoint) IsAttached() bool
• func (e *Endpoint) LinkAddress() tcpip.LinkAddress
• func (e *Endpoint) MTU() uint32
• func (e *Endpoint) MaxHeaderLength() uint16
• func (e *Endpoint) ParseHeader(pkt *stack.PacketBuffer) bool
• func (e *Endpoint) SetLinkAddress(addr tcpip.LinkAddress)
• func (e *Endpoint) SetMTU(mtu uint32)
• func (e *Endpoint) SetOnCloseAction(action func())
• func (e *Endpoint) SupportedGSO() stack.SupportedGSO
• func (e *Endpoint) Wait()
• func (e *Endpoint) WritePackets(pkts stack.PacketBufferList) (int, tcpip.Error)

Types ¶

type Endpoint ¶

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

Endpoint is a wrapper around stack.LinkEndpoint and stack.NetworkDispatcher that can be used to implement nesting safely by providing lifecycle concurrency guards.

See the tests in this package for example usage.

+stateify savable

func (*Endpoint) ARPHardwareType ¶

func (e *Endpoint) ARPHardwareType() header.ARPHardwareType

ARPHardwareType implements stack.LinkEndpoint.ARPHardwareType

func (*Endpoint) AddHeader ¶

func (e *Endpoint) AddHeader(pkt *stack.PacketBuffer)

AddHeader implements stack.LinkEndpoint.AddHeader.

func (*Endpoint) Attach ¶

func (e *Endpoint) Attach(dispatcher stack.NetworkDispatcher)

Attach implements stack.LinkEndpoint.

func (*Endpoint) Capabilities ¶

func (e *Endpoint) Capabilities() stack.LinkEndpointCapabilities

Capabilities implements stack.LinkEndpoint.

func (*Endpoint) Child ¶

func (e *Endpoint) Child() stack.LinkEndpoint

Child returns the child endpoint.

func (*Endpoint) Close ¶

func (e *Endpoint) Close()

Close implements stack.LinkEndpoint.

func (*Endpoint) DeliverLinkPacket ¶

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

DeliverLinkPacket implements stack.NetworkDispatcher.

func (*Endpoint) DeliverNetworkPacket ¶

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

DeliverNetworkPacket implements stack.NetworkDispatcher.

func (*Endpoint) GSOMaxSize ¶

func (e *Endpoint) GSOMaxSize() uint32

GSOMaxSize implements stack.GSOEndpoint.

func (*Endpoint) Init ¶

func (e *Endpoint) Init(child stack.LinkEndpoint, embedder stack.NetworkDispatcher)

Init initializes a nested.Endpoint that uses embedder as the dispatcher for child on Attach.

See the tests in this package for example usage.

func (*Endpoint) IsAttached ¶

func (e *Endpoint) IsAttached() bool

IsAttached implements stack.LinkEndpoint.

func (*Endpoint) LinkAddress ¶

func (e *Endpoint) LinkAddress() tcpip.LinkAddress

LinkAddress implements stack.LinkEndpoint.

func (*Endpoint) MTU ¶

func (e *Endpoint) MTU() uint32

MTU implements stack.LinkEndpoint.

func (*Endpoint) MaxHeaderLength ¶

func (e *Endpoint) MaxHeaderLength() uint16

MaxHeaderLength implements stack.LinkEndpoint.

func (*Endpoint) ParseHeader ¶

func (e *Endpoint) ParseHeader(pkt *stack.PacketBuffer) bool

ParseHeader implements stack.LinkEndpoint.ParseHeader.

func (*Endpoint) SetLinkAddress ¶

func (e *Endpoint) SetLinkAddress(addr tcpip.LinkAddress)

SetLinkAddress implements stack.LinkEndpoint.SetLinkAddress.

func (*Endpoint) SetMTU ¶

func (e *Endpoint) SetMTU(mtu uint32)

SetMTU implements stack.LinkEndpoint.

func (*Endpoint) SetOnCloseAction ¶

func (e *Endpoint) SetOnCloseAction(action func())

SetOnCloseAction implement stack.LinkEndpoints.

func (*Endpoint) SupportedGSO ¶

func (e *Endpoint) SupportedGSO() stack.SupportedGSO

SupportedGSO implements stack.GSOEndpoint.

func (*Endpoint) Wait ¶

func (e *Endpoint) Wait()

Wait implements stack.LinkEndpoint.

func (*Endpoint) WritePackets ¶

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

WritePackets implements stack.LinkEndpoint.

Source Files ¶

nested.go