go-ping库，用于golang中的非特权ICMP ping [英] go-ping library for unprivileged ICMP ping in golang

问题描述

我一直在使用go-ping库进行无特权的ping，并在golang中计算各种网络统计信息.代码段为->

I have been using go-ping library for the unprivileged ping and calculate various statistics of network in golang. code snippet is as->

func (p *Ping) doPing() (latency, jitter, packetLoss float64, err error) {

    timeout := time.Second*1000
    interval := time.Second
    count := 5
    host := p.ipAddr
    pinger, cmdErr := ping.NewPinger(host)
    if cmdErr != nil {
            glog.Error("Failed to ping " + p.ipAddr)
            err = cmdErr
            return
    }


    pinger.Count = count
    pinger.Interval = interval
    pinger.Timeout = timeout
    pinger.SetPrivileged(false)
    pinger.Run()
    stats := pinger.Statistics()
    latency = float64(stats.AvgRtt)   
    jitter = float64(stats.StdDevRtt) 
    packetLoss = stats.PacketLoss
    return
}

它工作正常，但现在开始抛出:-侦听ICMP数据包错误:套接字:权限被拒绝"错误.有人知道这背后的原因吗?我正在使用的Go版本是go1.7.4.

It was working fine but now it has started throwing :- "Error listening for ICMP packets: socket: permission denied" error. Anyone knows the reason behind this? Go version I am using is go1.7.4.

推荐答案

确保您的设置没有任何更改.如果我以前根据 Github上的说明.

Make sure your setting haven't changed in any way. Using ping from the package still works for me on a 32-bit Ubuntu 16.04 with Go 1.7.4 (linux/386) if I previousely set the net.ipv4.ping_group_range according to the instructions on Github.

关于Linux支持的说明:

此库尝试通过UDP发送非特权" ping.在Linux上，必须通过设置启用此功能

Note on Linux Support:

This library attempts to send an "unprivileged" ping via UDP. On linux, this must be enabled by setting

sudo sysctl -w net.ipv4.ping_group_range ="0 2147483647"

如果您不想这样做，可以设置 pinger.SetPrivileged(true)并使用setcap允许二进制文件使用go-ping绑定到原始套接字(或仅以超级用户身份运行):

If you do not wish to do this, you can set pinger.SetPrivileged(true) and use setcap to allow your binary using go-ping to bind to raw sockets (or just run as super-user):

setcap cap_net_raw = + ep/bin/goping-binary

请参见此博客和 Go icmp库更多细节.

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