cbpf_filter

package
v0.0.0-...-027dd2a Latest Latest
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Published: Jan 10, 2025 License: Apache-2.0 Imports: 8 Imported by: 0

Documentation

Overview

Copyright 2024 ByteDance and/or its affiliates.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func TcpdumpExprToBPF

func TcpdumpExprToBPF(filterExpr string, linkType layers.LinkType) ([]bpf.Instruction, error)

tcpdumpExprToBPF converts a tcpdump / libpcap filter expression to cBPF using libpcap

Types

type CbpfFilter

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

func New

func New(expr string, linkType layers.LinkType) (*CbpfFilter, error)

func (*CbpfFilter) ToC

func (p *CbpfFilter) ToC() (string, error)

func (*CbpfFilter) ToCWithOption

func (p *CbpfFilter) ToCWithOption(opts cbpfc.COpts) (string, error)

func (*CbpfFilter) ToEbpf

func (p *CbpfFilter) ToEbpf() (asm.Instructions, error)

func (*CbpfFilter) ToEbpfWithOption

func (p *CbpfFilter) ToEbpfWithOption(opts cbpfc.EBPFOpts) (asm.Instructions, error)

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