loader

Documentation

Overview

Package loader provides accessors to compilation and BPF load routines necessary for creating datapath objects and attaching them to links.

Index

• Variables
• func DeviceHasSKBProgramLoaded(device string, checkEgress bool) (bool, error)
• func ELFMapSubstitutions(ep datapath.Endpoint) map[string]string
• func ELFVariableSubstitutions(ep datapath.Endpoint) map[string]uint64
• func NewCompilationLock() types.CompilationLock
• func NewLoader(p Params) datapath.Loader
• type Config
  • func (def Config) Flags(flags *pflag.FlagSet)
• type Params

Variables

var Cell = cell.Module(
	"loader",
	"Loader",

	cell.Config(DefaultConfig),
	cell.Provide(NewLoader),
	cell.Provide(NewCompilationLock),
)

var DefaultConfig = Config{

	DeriveMasqIPAddrFromDevice: "",
}

Functions

func DeviceHasSKBProgramLoaded

func DeviceHasSKBProgramLoaded(device string, checkEgress bool) (bool, error)

DeviceHasSKBProgramLoaded returns true if the given device has a tc(x) program attached.

If checkEgress is true, returns true if there's both an ingress and egress program attached.

func ELFMapSubstitutions

func ELFMapSubstitutions(ep datapath.Endpoint) map[string]string

ELFMapSubstitutions returns the set of map substitutions that must occur in an ELF template object file to update map references for the specified endpoint.

func ELFVariableSubstitutions

func ELFVariableSubstitutions(ep datapath.Endpoint) map[string]uint64

ELFVariableSubstitutions returns the set of data substitutions that must occur in an ELF template object file to update static data for the specified endpoint.

func NewCompilationLock

func NewCompilationLock() types.CompilationLock

func NewLoader

func NewLoader(p Params) datapath.Loader

NewLoader returns a new loader.

Types

type Config

type Config struct {
	// DeriveMasqIPAddrFromDevice specifies which device's IP addr is used for BPF masquerade.
	// This is a hidden option and by default not set. Only needed in very specific setups
	// with ECMP and multiple devices.
	// See commit d204d789746b1389cc2ba02fdd55b81a2f55b76e for original context.
	// This can be removed once https://github.com/cilium/cilium/issues/17158 is resolved.
	DeriveMasqIPAddrFromDevice string
}

func (Config) Flags

func (def Config) Flags(flags *pflag.FlagSet)

type Params

type Params struct {
	cell.In

	Config          Config
	Sysctl          sysctl.Sysctl
	Prefilter       datapath.PreFilter
	CompilationLock datapath.CompilationLock
	ConfigWriter    datapath.ConfigWriter
	NodeHandler     datapath.NodeHandler
}