batch-ping

ICMP batch Ping library for Go, inspired by go-ping

Here is a very simple example :

package main

import (
	"log"

	"github.com/caucy/batch_ping"
)

func main() {
	ipSlice := []string{}
	// ip list should not more than 65535

	ipSlice = append(ipSlice, "2400:da00:2::29") //support ipv6
	ipSlice = append(ipSlice, "baidu.com")

	bp, err := ping.NewBatchPinger(ipSlice, false) // true will need to be root

	if err != nil {
		log.Fatalf("new batch ping err %v", err)
	}
	bp.SetDebug(false) // debug == true will fmt debug log

	bp.SetSource("") // if hava multi source ip, can use one isp
	bp.SetCount(10)

	bp.OnFinish = func(stMap map[string]*ping.Statistics) {
		for ip, st := range stMap {
			log.Printf("\n--- %s ping statistics ---\n", st.Addr)
			log.Printf("ip %s, %d packets transmitted, %d packets received, %v%% packet loss\n", ip,
				st.PacketsSent, st.PacketsRecv, st.PacketLoss)
			log.Printf("round-trip min/avg/max/stddev = %v/%v/%v/%v\n",
				st.MinRtt, st.AvgRtt, st.MaxRtt, st.StdDevRtt)
			log.Printf("rtts is %v \n", st.Rtts)
		}

	}

	err = bp.Run()
	if err != nil {
		log.Printf("run err %v \n", err)
	}
	bp.OnFinish(bp.Statistics())
}

It sends ICMP packet(s) and waits for a response. If it receives a response, it calls the "receive" callback. When it's finished, can call the "OnFinish" callback.

Installation:

go get github.com/caucy/batch_ping

Note on linux support :

On Mac, it can use unprivileged and privileged, but on Linux or docker, you should use privileged and have sudo permission.

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

feature:

1, bind source ip

bp.SetSource("") // if hava multi isp ip, can use one 

2, support ipv6

can support use ipv4 and ipv6 at the same time

3, support ping multi ip

NewBatchPinger can support multi ip ping

4, support two model

can use unprivileged mode , need not to be root

Attention:

ping can support ping many ip, id is pid，but should notice modify udp.sendspace , udp.recvspace and raw.recvspace and so on.

fix same bug of github.com/sparrc/go-ping, such as if the dst server use the iptable ban ping, go-ping will hang .