tuple

package
v1.14.0 Latest Latest
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 Go to latest Published: Mar 14, 2023 License: Apache-2.0 Imports: 7 Imported by: 0

Documentation

Overview

Package tuple defines keys used for connection tuples in multiple BPF maps. +groupName=maps

Index

Constants

View Source 
const (
	TUPLE_F_OUT     = 0
	TUPLE_F_IN      = 1
	TUPLE_F_RELATED = 2
	TUPLE_F_SERVICE = 4
)

Variables

This section is empty.

Functions

This section is empty.

Types

type TupleKey 

type TupleKey interface {
	bpf.MapKey

	// ToNetwork converts fields to network byte order.
	ToNetwork() TupleKey

	// ToHost converts fields to host byte order.
	ToHost() TupleKey

	// Dumps contents of key to sb. Returns true if successful.
	Dump(sb *strings.Builder, reverse bool) bool

	// Returns flags containing the direction of the tuple key.
	GetFlags() uint8
}

TupleKey is the interface describing keys to the conntrack and NAT maps.

type TupleKey4 

type TupleKey4 struct {
	DestAddr   types.IPv4      `align:"daddr"`
	SourceAddr types.IPv4      `align:"saddr"`
	DestPort   uint16          `align:"dport"`
	SourcePort uint16          `align:"sport"`
	NextHeader u8proto.U8proto `align:"nexthdr"`
	Flags      uint8           `align:"flags"`
}

TupleKey4 represents the key for IPv4 entries in the local BPF conntrack map. Address field names are correct for return traffic, i.e., they are reversed compared to the original direction traffic. +k8s:deepcopy-gen=true +k8s:deepcopy-gen:interfaces=github.com/go-faster/cilium/pkg/bpf.MapKey

func (*TupleKey4) DeepCopy added in v1.5.1 

func (in *TupleKey4) DeepCopy() *TupleKey4

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TupleKey4.

func (*TupleKey4) DeepCopyInto added in v1.5.1 

func (in *TupleKey4) DeepCopyInto(out *TupleKey4)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*TupleKey4) DeepCopyMapKey added in v1.5.1 

func (in *TupleKey4) DeepCopyMapKey() bpf.MapKey

DeepCopyMapKey is an autogenerated deepcopy function, copying the receiver, creating a new bpf.MapKey.

func (TupleKey4) Dump 

func (k TupleKey4) Dump(sb *strings.Builder, reverse bool) bool

Dump writes the contents of key to sb and returns true if the value for next header in the key is nonzero.

func (*TupleKey4) GetFlags 

func (k *TupleKey4) GetFlags() uint8

GetFlags returns the tuple's flags.

func (*TupleKey4) GetKeyPtr 

func (k *TupleKey4) GetKeyPtr() unsafe.Pointer

GetKeyPtr returns the unsafe.Pointer for k.

func (*TupleKey4) NewValue 

func (k *TupleKey4) NewValue() bpf.MapValue

NewValue creates a new bpf.MapValue.

func (*TupleKey4) String 

func (k *TupleKey4) String() string

String returns the tuple's string representation, doh.

func (*TupleKey4) SwapAddresses added in v1.14.0 

func (t *TupleKey4) SwapAddresses()

SwapAddresses swaps the tuple source and destination addresses.

func (*TupleKey4) ToHost 

func (k *TupleKey4) ToHost() TupleKey

ToHost converts TupleKey4 ports to host byte order.

func (*TupleKey4) ToNetwork 

func (k *TupleKey4) ToNetwork() TupleKey

ToNetwork converts TupleKey4 ports to network byte order.

type TupleKey4Global 

type TupleKey4Global struct {
	TupleKey4
}

TupleKey4Global represents the key for IPv4 entries in the global BPF conntrack map. +k8s:deepcopy-gen=true +k8s:deepcopy-gen:interfaces=github.com/go-faster/cilium/pkg/bpf.MapKey

func (*TupleKey4Global) DeepCopy added in v1.5.1 

func (in *TupleKey4Global) DeepCopy() *TupleKey4Global

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TupleKey4Global.

func (*TupleKey4Global) DeepCopyInto added in v1.5.1 

func (in *TupleKey4Global) DeepCopyInto(out *TupleKey4Global)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*TupleKey4Global) DeepCopyMapKey added in v1.5.1 

func (in *TupleKey4Global) DeepCopyMapKey() bpf.MapKey

DeepCopyMapKey is an autogenerated deepcopy function, copying the receiver, creating a new bpf.MapKey.

func (TupleKey4Global) Dump 

func (k TupleKey4Global) Dump(sb *strings.Builder, reverse bool) bool

Dump writes the contents of key to sb and returns true if the value for next header in the key is nonzero.

func (*TupleKey4Global) GetFlags 

func (k *TupleKey4Global) GetFlags() uint8

GetFlags returns the tuple's flags.

func (*TupleKey4Global) String 

func (k *TupleKey4Global) String() string

String returns the tuple's string representation, doh.

func (*TupleKey4Global) ToHost 

func (k *TupleKey4Global) ToHost() TupleKey

ToHost converts ports to host byte order.

This is necessary to prevent callers from implicitly converting the TupleKey4Global type here into a local key type in the nested TupleKey4 field.

func (*TupleKey4Global) ToNetwork 

func (k *TupleKey4Global) ToNetwork() TupleKey

ToNetwork converts ports to network byte order.

This is necessary to prevent callers from implicitly converting the TupleKey4Global type here into a local key type in the nested TupleKey4 field.

type TupleKey6 

type TupleKey6 struct {
	DestAddr   types.IPv6      `align:"daddr"`
	SourceAddr types.IPv6      `align:"saddr"`
	DestPort   uint16          `align:"dport"`
	SourcePort uint16          `align:"sport"`
	NextHeader u8proto.U8proto `align:"nexthdr"`
	Flags      uint8           `align:"flags"`
}

TupleKey6 represents the key for IPv6 entries in the local BPF conntrack map. Address field names are correct for return traffic, i.e., they are reversed compared to the original direction traffic. +k8s:deepcopy-gen=true +k8s:deepcopy-gen:interfaces=github.com/go-faster/cilium/pkg/bpf.MapKey

func (*TupleKey6) DeepCopy added in v1.5.1 

func (in *TupleKey6) DeepCopy() *TupleKey6

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TupleKey6.

func (*TupleKey6) DeepCopyInto added in v1.5.1 

func (in *TupleKey6) DeepCopyInto(out *TupleKey6)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*TupleKey6) DeepCopyMapKey added in v1.5.1 

func (in *TupleKey6) DeepCopyMapKey() bpf.MapKey

DeepCopyMapKey is an autogenerated deepcopy function, copying the receiver, creating a new bpf.MapKey.

func (TupleKey6) Dump 

func (k TupleKey6) Dump(sb *strings.Builder, reverse bool) bool

Dump writes the contents of key to sb and returns true if the value for next header in the key is nonzero.

func (*TupleKey6) GetFlags 

func (k *TupleKey6) GetFlags() uint8

GetFlags returns the tuple's flags.

func (*TupleKey6) GetKeyPtr 

func (k *TupleKey6) GetKeyPtr() unsafe.Pointer

GetKeyPtr returns the unsafe.Pointer for k.

func (*TupleKey6) NewValue 

func (k *TupleKey6) NewValue() bpf.MapValue

NewValue creates a new bpf.MapValue.

func (*TupleKey6) String 

func (k *TupleKey6) String() string

String returns the tuple's string representation, doh.

func (*TupleKey6) SwapAddresses added in v1.14.0 

func (t *TupleKey6) SwapAddresses()

SwapAddresses swaps the tuple source and destination addresses.

func (*TupleKey6) ToHost 

func (k *TupleKey6) ToHost() TupleKey

ToHost converts TupleKey6 ports to network byte order.

func (*TupleKey6) ToNetwork 

func (k *TupleKey6) ToNetwork() TupleKey

ToNetwork converts TupleKey6 ports to network byte order.

type TupleKey6Global 

type TupleKey6Global struct {
	TupleKey6
}

TupleKey6Global represents the key for IPv6 entries in the global BPF conntrack map. +k8s:deepcopy-gen=true +k8s:deepcopy-gen:interfaces=github.com/go-faster/cilium/pkg/bpf.MapKey

func (*TupleKey6Global) DeepCopy added in v1.5.1 

func (in *TupleKey6Global) DeepCopy() *TupleKey6Global

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TupleKey6Global.

func (*TupleKey6Global) DeepCopyInto added in v1.5.1 

func (in *TupleKey6Global) DeepCopyInto(out *TupleKey6Global)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*TupleKey6Global) DeepCopyMapKey added in v1.5.1 

func (in *TupleKey6Global) DeepCopyMapKey() bpf.MapKey

DeepCopyMapKey is an autogenerated deepcopy function, copying the receiver, creating a new bpf.MapKey.

func (TupleKey6Global) Dump 

func (k TupleKey6Global) Dump(sb *strings.Builder, reverse bool) bool

Dump writes the contents of key to sb and returns true if the value for next header in the key is nonzero.

func (*TupleKey6Global) GetFlags 

func (k *TupleKey6Global) GetFlags() uint8

GetFlags returns the tuple's flags.

func (*TupleKey6Global) String 

func (k *TupleKey6Global) String() string

String returns the tuple's string representation, doh.

func (*TupleKey6Global) ToHost 

func (k *TupleKey6Global) ToHost() TupleKey

ToHost converts ports to host byte order.

This is necessary to prevent callers from implicitly converting the TupleKey6Global type here into a local key type in the nested TupleKey6 field.

func (*TupleKey6Global) ToNetwork 

func (k *TupleKey6Global) ToNetwork() TupleKey

ToNetwork converts ports to network byte order.

This is necessary to prevent callers from implicitly converting the TupleKey6Global type here into a local key type in the nested TupleKey6 field.

type TupleValStub 

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

TupleValStub is a dummy, unused. +k8s:deepcopy-gen=true +k8s:deepcopy-gen:interfaces=github.com/go-faster/cilium/pkg/bpf.MapValue

func (*TupleValStub) DeepCopy added in v1.5.1 

func (in *TupleValStub) DeepCopy() *TupleValStub

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TupleValStub.

func (*TupleValStub) DeepCopyInto added in v1.5.1 

func (in *TupleValStub) DeepCopyInto(out *TupleValStub)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*TupleValStub) DeepCopyMapValue added in v1.5.1 

func (in *TupleValStub) DeepCopyMapValue() bpf.MapValue

DeepCopyMapValue is an autogenerated deepcopy function, copying the receiver, creating a new bpf.MapValue.

func (*TupleValStub) GetValuePtr 

func (t *TupleValStub) GetValuePtr() unsafe.Pointer

GetValuePtr returns the unsafe.Pointer for s.

func (*TupleValStub) String 

func (t *TupleValStub) String() string

String stub method.

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