filters

package
v0.0.1 Latest Latest
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 Go to latest Published: Aug 14, 2023 License: Apache-2.0 Imports: 18 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	MaxNotSetUInt uint64 = 0
	MinNotSetUInt uint64 = math.MaxUint64
)

Variables

This section is empty.

Functions

func FailedToRetreiveHostNS 

func FailedToRetreiveHostNS() error

func InvalidContextField 

func InvalidContextField(field string) error

func InvalidEventArgument 

func InvalidEventArgument(argument string) error

func InvalidEventName 

func InvalidEventName(event string) error

func InvalidExpression 

func InvalidExpression(expression string) error

func InvalidPolicy 

func InvalidPolicy(policy string) error

func InvalidValue 

func InvalidValue(value string) error

func UnsupportedOperator 

func UnsupportedOperator(op Operator) error

Types

type ArgFilter 

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

func NewArgFilter 

func NewArgFilter() *ArgFilter

func (*ArgFilter) Disable 

func (filter *ArgFilter) Disable()

func (*ArgFilter) Enable 

func (filter *ArgFilter) Enable()

func (*ArgFilter) Enabled 

func (filter *ArgFilter) Enabled() bool

func (*ArgFilter) Filter 

func (filter *ArgFilter) Filter(eventID events.ID, args []trace.Argument) bool

func (*ArgFilter) GetEventFilters 

func (filter *ArgFilter) GetEventFilters(eventID events.ID) map[string]Filter

GetEventFilters returns the argument filters map for a specific event writing to the map may have unintentional consequences, avoid doing so

func (*ArgFilter) Parse 

func (filter *ArgFilter) Parse(filterName string, operatorAndValues string, eventsNameToID map[string]events.ID) error

type BPFBinaryFilter 

type BPFBinaryFilter struct {
	BinaryFilter
	// contains filtered or unexported fields
}

func NewBPFBinaryFilter 

func NewBPFBinaryFilter(binaryMapName, procInfoMap string) *BPFBinaryFilter

func (*BPFBinaryFilter) UpdateBPF 

func (f *BPFBinaryFilter) UpdateBPF(bpfModule *bpf.Module, policyID uint) error

type BPFStringFilter 

type BPFStringFilter struct {
	StringFilter
	// contains filtered or unexported fields
}

func NewBPFStringFilter 

func NewBPFStringFilter(mapName string) *BPFStringFilter

func (*BPFStringFilter) UpdateBPF 

func (filter *BPFStringFilter) UpdateBPF(bpfModule *bpf.Module, policyID uint) error

type BPFUIntFilter 

type BPFUIntFilter[T constraints.Unsigned] struct {
	UIntFilter[T]
	// contains filtered or unexported fields
}

func NewBPFUInt32Filter 

func NewBPFUInt32Filter(mapName string) *BPFUIntFilter[uint32]

func NewBPFUIntFilter 

func NewBPFUIntFilter(mapName string) *BPFUIntFilter[uint64]

func (*BPFUIntFilter[T]) UpdateBPF 

func (filter *BPFUIntFilter[T]) UpdateBPF(bpfModule *bpf.Module, policyID uint) error

type BinaryFilter 

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

func NewBinaryFilter 

func NewBinaryFilter() *BinaryFilter

func (*BinaryFilter) Disable 

func (f *BinaryFilter) Disable()

func (*BinaryFilter) Enable 

func (f *BinaryFilter) Enable()

func (*BinaryFilter) Enabled 

func (f *BinaryFilter) Enabled() bool

func (*BinaryFilter) FilterOut 

func (f *BinaryFilter) FilterOut() bool

func (*BinaryFilter) Parse 

func (f *BinaryFilter) Parse(operatorAndValues string) error

type BoolFilter 

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

func NewBoolFilter 

func NewBoolFilter() *BoolFilter

func (*BoolFilter) Disable 

func (f *BoolFilter) Disable()

func (*BoolFilter) Enable 

func (f *BoolFilter) Enable()

func (*BoolFilter) Enabled 

func (f *BoolFilter) Enabled() bool

func (*BoolFilter) Filter 

func (f *BoolFilter) Filter(val interface{}) bool

func (*BoolFilter) FilterOut 

func (f *BoolFilter) FilterOut() bool

func (*BoolFilter) Parse 

func (f *BoolFilter) Parse(operatorAndValues string) error

BoolFilter can support the following expressions values in <> are ignored field -> field=true !field -> field=false field=true field=false field!=true field!=false

func (*BoolFilter) Value 

func (f *BoolFilter) Value() bool

type ContainerFilter 

type ContainerFilter struct {
	*BPFStringFilter
}

func NewContainerFilter 

func NewContainerFilter(mapName string) *ContainerFilter

func (*ContainerFilter) UpdateBPF 

func (f *ContainerFilter) UpdateBPF(bpfModule *bpf.Module, cts *containers.Containers, policyID uint) error

type ContextFilter 

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

func NewContextFilter 

func NewContextFilter() *ContextFilter

func (*ContextFilter) Disable 

func (filter *ContextFilter) Disable()

func (*ContextFilter) Enable 

func (filter *ContextFilter) Enable()

func (*ContextFilter) Enabled 

func (filter *ContextFilter) Enabled() bool

func (*ContextFilter) Filter 

func (filter *ContextFilter) Filter(event trace.Event) bool

func (*ContextFilter) Parse 

func (filter *ContextFilter) Parse(filterName string, operatorAndValues string) error

type Filter 

type Filter interface {
	Filter(val interface{}) bool
	Parse(string) error
	Enable()
	Disable()
	Enabled() bool
}

This is a generic representation which cannot be implemented With generics this may be a viable interface, with T replacing interface{} Filters can be enabled or disabled - if a filter is enabled it will be skipped

type IntFilter 

type IntFilter[T constraints.Signed] struct {
	// contains filtered or unexported fields
}

func NewInt32Filter 

func NewInt32Filter() *IntFilter[int32]

func NewIntFilter 

func NewIntFilter() *IntFilter[int64]

func (*IntFilter[T]) Disable 

func (f *IntFilter[T]) Disable()

func (*IntFilter[T]) Enable 

func (f *IntFilter[T]) Enable()

func (*IntFilter[T]) Enabled 

func (f *IntFilter[T]) Enabled() bool

func (*IntFilter[T]) Filter 

func (f *IntFilter[T]) Filter(val interface{}) bool

func (*IntFilter[T]) Maximum 

func (f *IntFilter[T]) Maximum() int64

func (*IntFilter[T]) Minimum 

func (f *IntFilter[T]) Minimum() int64

func (*IntFilter[T]) Parse 

func (f *IntFilter[T]) Parse(operatorAndValues string) error

type Operator 

type Operator uint
const (
	Equal Operator = iota
	NotEqual
	Lower
	LowerEqual
	Greater
	GreaterEqual
)

func (Operator) String 

func (o Operator) String() string

type ProcessTreeFilter 

type ProcessTreeFilter struct {
	PIDs map[uint32]bool // PIDs is a map where k=pid and v represents whether it and its descendent should be traced or not
	// contains filtered or unexported fields
}

func NewProcessTreeFilter 

func NewProcessTreeFilter(mapName string) *ProcessTreeFilter

func (*ProcessTreeFilter) Disable 

func (f *ProcessTreeFilter) Disable()

func (*ProcessTreeFilter) Enable 

func (f *ProcessTreeFilter) Enable()

func (*ProcessTreeFilter) Enabled 

func (f *ProcessTreeFilter) Enabled() bool

func (*ProcessTreeFilter) FilterOut 

func (f *ProcessTreeFilter) FilterOut() bool

func (*ProcessTreeFilter) Parse 

func (f *ProcessTreeFilter) Parse(operatorAndValues string) error

func (*ProcessTreeFilter) UpdateBPF 

func (f *ProcessTreeFilter) UpdateBPF(bpfModule *bpf.Module, policyID uint) error

type RetFilter 

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

func NewRetFilter 

func NewRetFilter() *RetFilter

func (*RetFilter) Disable 

func (filter *RetFilter) Disable()

func (*RetFilter) Enable 

func (filter *RetFilter) Enable()

func (*RetFilter) Enabled 

func (filter *RetFilter) Enabled() bool

func (*RetFilter) Filter 

func (filter *RetFilter) Filter(eventID events.ID, retVal int64) bool

func (*RetFilter) Parse 

func (filter *RetFilter) Parse(filterName string, operatorAndValues string, eventsNameToID map[string]events.ID) error

type StringFilter 

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

func NewStringFilter 

func NewStringFilter() *StringFilter

func (*StringFilter) Disable 

func (f *StringFilter) Disable()

func (*StringFilter) Enable 

func (f *StringFilter) Enable()

func (*StringFilter) Enabled 

func (f *StringFilter) Enabled() bool

func (*StringFilter) Equal 

func (f *StringFilter) Equal() []string

Equals returns all equality check values - direct, prefixed and suffixed

func (*StringFilter) Filter 

func (f *StringFilter) Filter(val interface{}) bool

func (*StringFilter) FilterOut 

func (f *StringFilter) FilterOut() bool

func (*StringFilter) NotEqual 

func (f *StringFilter) NotEqual() []string

NotEquals returns all non-equality check values - direct, prefixed and suffixed

func (*StringFilter) Parse 

func (f *StringFilter) Parse(operatorAndValues string) error

type UIntFilter 

type UIntFilter[T constraints.Unsigned] struct {
	// contains filtered or unexported fields
}

func NewUInt32Filter 

func NewUInt32Filter() *UIntFilter[uint32]

func NewUIntFilter 

func NewUIntFilter() *UIntFilter[uint64]

func (*UIntFilter[T]) Disable 

func (f *UIntFilter[T]) Disable()

func (*UIntFilter[T]) Enable 

func (f *UIntFilter[T]) Enable()

func (*UIntFilter[T]) Enabled 

func (f *UIntFilter[T]) Enabled() bool

func (*UIntFilter[T]) Filter 

func (f *UIntFilter[T]) Filter(val interface{}) bool

func (*UIntFilter[T]) FilterOut 

func (f *UIntFilter[T]) FilterOut() bool

func (UIntFilter[T]) InMinMaxRange 

func (f UIntFilter[T]) InMinMaxRange(val T) bool

func (*UIntFilter[T]) Maximum 

func (f *UIntFilter[T]) Maximum() uint64

func (*UIntFilter[T]) Minimum 

func (f *UIntFilter[T]) Minimum() uint64

func (*UIntFilter[T]) Parse 

func (f *UIntFilter[T]) Parse(operatorAndValues string) error

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