使用 google 提高的 gopacket 库包进行抓包, 拿到的数据往一个 channel 里面怼,如果队列满,则直接抛弃,可以理解为采样。...如何监听多个网卡 google golang gopacket 库默认只能 openlive 一个网卡,没找到可以 openlive 多个设备网卡的相关方法。...那么在 gopacket 如何实现多个设备网卡监听?实例化多个 openlive 实例不就行了,我居然还还提了 issue 询问该问题,当然没人回复我了。...CPU的开销主要在 google gopacket 调用上, cgo 的调用一点也不便宜, 暂时没有好的方法来优化。另外, 进程的流量监控无需太细致,粗粒度采样足够了。 ----
Capturing How can it be used What is libpcap Debug Tools: tcpdump & WinPcap & snoop What is BPF What is gopacket..." "github.com/google/gopacket/layers" "github.com/google/gopacket/pcap" ) func main() { fmt.Println..." "github.com/google/gopacket/layers" "github.com/google/gopacket/pcap" ) func main(){ handle, err..." "github.com/google/gopacket/layers" "github.com/google/gopacket/pcap" "log" "net"...buffer = gopacket.NewSerializeBuffer() gopacket.SerializeLayers(buffer, options, &layers.Ethernet
gopacket是什么? gopacket是google出品的golang三方库,质量还是靠的住,项目地址为:github.com/google/gopacket gopacket到底是什么呢?...打开一个设备进行抓包 package main import ( "fmt" "github.com/google/gopacket" "github.com/google/gopacket...Layers包是gopacket的Go库中的新功能,在底层libpcap库中不存在。它是gopacket库的非常有用的一部分。它允许我们轻松地识别数据包是否包含特定类型的层。...package main import ( "fmt" "github.com/google/gopacket" "github.com/google/gopacket/layers.../gopacket/pcap" "github.com/google/gopacket/tcpassembly" "github.com/google/gopacket/tcpassembly/tcpreader
/content/packet-capture-injection-and-analysis-gopacket 子包: github.com/google/gopacket github.com/google.../gopacket/pcap github.com/google/gopacket/layers :解析包用的最多的就是这个包 github.com/google/gopacket/pcapgo 类型:...( packet, layers.LayerTypeEthernet, gopacket.Default) // 复制一份包 // 解析 IP 层 ipPacket := gopacket.NewPacket...( packet, layers.LayerTypeIPv6, gopacket.NoCopy) // 不复制,所以不要修改 // 解析 TCP 层 tcpPacket := gopacket.NewPacket...( data, MyLayerType, gopacket.Default, ) 构造包 buffer = gopacket.NewSerializeBuffer() options := gopacket.SerializeOptions
源码相关: https://github.com/timest/goscan 文章关键词 go/golang gopacket 抓包 pcap/libpcap arp nbns mdns manuf...gopacket有封装好的ARP报文: type ARP struct { BaseLayer AddrType LinkType // 硬件类型 Protocol...net.HardwareAddr{0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, DstProtAddress: dstIp, } buffer := gopacket.NewSerializeBuffer...() var opt gopacket.SerializeOptions gopacket.SerializeLayers(buffer, opt, ether, a) outgoingPacket...log.Fatal("pcap打开失败:", err) } defer handle.Close() handle.SetBPFFilter("arp") ps := gopacket.NewPacketSource
得益于谷歌的包: github.com/google/gopacket github.com/google/gopacket/layers github.com/google/gopacket/pcap...} else { log.Infoln("Start listen the device ", device) packetSource := gopacket.NewPacketSource...tcp := &layers.TCP{} err := tcp.DecodeFromBytes(tran.LayerContents(), gopacket.NilDecodeFeedback
下面是其架构图,主要分为5大功能模块: 1. probe probe意为探针,采用了gopacket作为抓包方案,它是谷歌开源的一个Go抓包库,封装了pcap。...3.2 基础性能测试 抓包库gopacket的性能直接决定了系统性能上限,为了探究问题是否出在gopacket上,我们编写了简易的tcp-client和tcp-server,单独对gopacket在数据流向图中涉及到的前三个步骤...(如下图所示)进行了性能测试,从下面的测试结果数据上看,性能瓶颈点不在gopacket。
在上面分析中知道了,Masscan和Zmap都使用了pcap,pfring这些组件来原生发包,值得高兴的是go官方也有原生支持这些的包 https://github.com/google/gopacket...package main import ( "fmt" "github.com/google/gopacket" "github.com/google/gopacket/layers..." "github.com/google/gopacket/pcap" "log" "net" "sync" "time" ) var ( SrcIP...promiscuous, timeout) // Use the handle as a packet source to process all packets packetSource := gopacket.NewPacketSource...() err := gopacket.SerializeLayers( buf, gopacket.SerializeOptions{
在上面分析中知道了,Masscan和Zmap都使用了pcap,pfring这些组件来原生发包,值得高兴的是go官方也有原生支持这些的包 https://github.com/google/gopacket...package main import ( "fmt" "github.com/google/gopacket" "github.com/google/gopacket/layers" "github.com.../google/gopacket/pcap" "log" "net" "sync" "time" ) var ( SrcIP string = "10.x.x.x" //...promiscuous, timeout) // Use the handle as a packet source to process all packets packetSource := gopacket.NewPacketSource...() err := gopacket.SerializeLayers( buf, gopacket.SerializeOptions{
go-internals - 深入理解Go语言 The Little Go Book - Google Go语言编程书 book - 雨痕Go 学习笔记 Hacking-with-Go - Golang黑客编程 库 gopacket
其抓包原理是基于https://github.com/google/gopacket包实现的。
Cyber-Security: IPv6 & Security Cyber-Security: 中国香港警务处网络安全与科技罪案调查科 浅谈基于数据分析的网络态势感知 网络数据包的捕获与分析(libpcap、BPF及gopacket
介绍 k8spacket 是用 Golang 编写的一个工具,它使用 gopacket 第三方库来嗅探工作负载上的 TCP 数据包(传入和传出),它在运行的容器网络接口上创建 TCP 监听器。
以然后安装gopacket,即针对libpcap的Go封装器。
goreplay(https://github.com/buger/goreplay)是基于libpcap的流量录制工具,它依赖包https://github.com/google/gopacket...,而gopacket是对libpcap和npcap的go封装。
使用 GoPacket 从 libpcap 主线程上捕获原始数据包; 2.
废话少说,下面简单说说如何使用这个小工具: 编译 编译就十分轻松了,go 自带了编译工具,只需要将包里的依赖库取回本地,直接编译就可以了 >go get github.com/google/gopacket
一个开源的流量回放工具,支持多种类型流量的实时及离线回放; Sharingan:基于Golang的流量录制回放工具,通过修改Golang源码,加钩子拦截并镜像流量; GoReplay:Golang编写的开源工具,利用gopacket
cd $GOPATH"/src/vxlan-to-http-request" go mod init vxlan-to-http-request go get "github.com/google/gopacket
kubernetes 的TCP 数据包可视化介绍k8spacket是用 Golang 编写的工具,它使用gopacket第三方库来嗅探工作负载(传入和传出)上的 TCP 数据包。...listen refreshPeriod: "10s" assembler: ## See: https://pkg.go.dev/github.com/google/gopacket
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