filter

Documentation

Overview

Package filter provides the implementation of packet filter.

Index

• func AddOutgoingService(ctx *component.Context, f *Filter)
• type Filter
  • func New(s *stack.Stack) *Filter
  • func (f *Filter) RemovedNIC(id tcpip.NICID)
• type TCPDestinationPortMatcher
  • func NewTCPDestinationPortMatcher(start, end uint16) *TCPDestinationPortMatcher
  • func (m *TCPDestinationPortMatcher) Match(_ stack.Hook, pkt *stack.PacketBuffer, _, _ string) (matches bool, hotdrop bool)
  • func (*TCPDestinationPortMatcher) Name() string
• type TCPSourcePortMatcher
  • func NewTCPSourcePortMatcher(start, end uint16) *TCPSourcePortMatcher
  • func (m *TCPSourcePortMatcher) Match(_ stack.Hook, pkt *stack.PacketBuffer, _, _ string) (matches bool, hotdrop bool)
  • func (*TCPSourcePortMatcher) Name() string
• type UDPDestinationPortMatcher
  • func NewUDPDestinationPortMatcher(start, end uint16) *UDPDestinationPortMatcher
  • func (m *UDPDestinationPortMatcher) Match(_ stack.Hook, pkt *stack.PacketBuffer, _, _ string) (matches bool, hotdrop bool)
  • func (*UDPDestinationPortMatcher) Name() string
• type UDPSourcePortMatcher
  • func NewUDPSourcePortMatcher(start, end uint16) *UDPSourcePortMatcher
  • func (m *UDPSourcePortMatcher) Match(_ stack.Hook, pkt *stack.PacketBuffer, _, _ string) (matches bool, hotdrop bool)
  • func (*UDPSourcePortMatcher) Name() string

Functions

func AddOutgoingService

func AddOutgoingService(ctx *component.Context, f *Filter)

Types

type Filter

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

func New

func New(s *stack.Stack) *Filter

func (*Filter) RemovedNIC

func (f *Filter) RemovedNIC(id tcpip.NICID)

type TCPDestinationPortMatcher

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

TCPDestinationPortMatcher matches TCP packets and ports.

func NewTCPDestinationPortMatcher

func NewTCPDestinationPortMatcher(start, end uint16) *TCPDestinationPortMatcher

func (*TCPDestinationPortMatcher) Match

func (m *TCPDestinationPortMatcher) Match(_ stack.Hook, pkt *stack.PacketBuffer, _, _ string) (matches bool, hotdrop bool)

Match implements stack.Matcher.

func (*TCPDestinationPortMatcher) Name

func (*TCPDestinationPortMatcher) Name() string

Name implements stack.Matcher.

type TCPSourcePortMatcher

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

TCPSourcePortMatcher matches TCP packets and ports.

func NewTCPSourcePortMatcher

func NewTCPSourcePortMatcher(start, end uint16) *TCPSourcePortMatcher

func (*TCPSourcePortMatcher) Match

func (m *TCPSourcePortMatcher) Match(_ stack.Hook, pkt *stack.PacketBuffer, _, _ string) (matches bool, hotdrop bool)

Match implements stack.Matcher.

func (*TCPSourcePortMatcher) Name

func (*TCPSourcePortMatcher) Name() string

Name implements stack.Matcher.

type UDPDestinationPortMatcher

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

UDPDestinationPortMatcher matches UDP packets and ports.

func NewUDPDestinationPortMatcher

func NewUDPDestinationPortMatcher(start, end uint16) *UDPDestinationPortMatcher

func (*UDPDestinationPortMatcher) Match

func (m *UDPDestinationPortMatcher) Match(_ stack.Hook, pkt *stack.PacketBuffer, _, _ string) (matches bool, hotdrop bool)

Match implements stack.Matcher.

func (*UDPDestinationPortMatcher) Name

func (*UDPDestinationPortMatcher) Name() string

Name implements stack.Matcher.

type UDPSourcePortMatcher

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

UDPSourcePortMatcher matches UDP packets and ports.

func NewUDPSourcePortMatcher

func NewUDPSourcePortMatcher(start, end uint16) *UDPSourcePortMatcher

func (*UDPSourcePortMatcher) Match

func (m *UDPSourcePortMatcher) Match(_ stack.Hook, pkt *stack.PacketBuffer, _, _ string) (matches bool, hotdrop bool)

Match implements stack.Matcher.

func (*UDPSourcePortMatcher) Name

func (*UDPSourcePortMatcher) Name() string

Name implements stack.Matcher.