107 lines
2.6 KiB
Go
107 lines
2.6 KiB
Go
package cmd
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import (
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"dtool/utils"
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"fmt"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/spf13/cobra"
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)
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// input parameters
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// var query_target string
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var query_port string
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var query_name string
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var query_type uint16
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var query_class uint16
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var query_rate int
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var query_packets int
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var query_random_prefix bool
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/*
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DNS请求测试功能，可设置参数包括域名（随机前缀），资源记录type/class，请求速率，请求数量
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*/
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var queryCmd = &cobra.Command{
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Use: "query",
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Short: "",
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Long: "",
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Run: queryTest,
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}
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func concurrent_request(ip, domain, port string, qtype, qclass uint16, result chan int, wg *sync.WaitGroup) {
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wg.Add(1)
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res, err := utils.SendQuery(ip, domain, port, qtype, qclass)
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if err != nil {
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result <- (-1)
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//fmt.Println(err)
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} else {
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rcode := utils.ParseRcode(res)
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result <- rcode
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}
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wg.Done()
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}
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func response_stat(stat []int, result chan int, wg *sync.WaitGroup) {
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wg.Add(1)
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defer wg.Done()
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for {
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if v, ok := <-result; ok {
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switch v {
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case 0:
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stat[0]++
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case 2:
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stat[1]++
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case 3:
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stat[2]++
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case -1:
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stat[3]++
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default:
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stat[4]++
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}
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} else {
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break
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}
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}
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}
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func queryTest(cmd *cobra.Command, args []string) {
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var wg1 sync.WaitGroup
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var wg2 sync.WaitGroup
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result := make(chan int)
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stat := make([]int, 5)
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if len(args) == 1 {
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if utils.IsValidIP(args[0]) {
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timestamp := strconv.FormatInt(time.Now().Unix(), 10)
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go response_stat(stat, result, &wg2)
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for i := 0; i < query_packets; i++ {
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var qname string
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if query_random_prefix {
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qname = strings.Join([]string{timestamp, strconv.Itoa(i)}, "-") + query_name
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} else {
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qname = query_name
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}
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go concurrent_request(args[0], qname, query_port, query_type, query_class, result, &wg1)
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time.Sleep(time.Second / time.Duration(query_rate))
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}
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wg1.Wait()
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close(result)
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wg2.Wait()
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fmt.Printf("total: %v noerr: %v servfail: %v nx: %v error: %v other: %v\n", query_packets, stat[0], stat[1], stat[2], stat[3], stat[4])
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}
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}
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}
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func init() {
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queryCmd.Flags().BoolVarP(&query_random_prefix, "random", "R", false, "random query name")
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queryCmd.Flags().StringVarP(&query_port, "port", "p", "53", "query target port")
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queryCmd.Flags().StringVarP(&query_name, "name", "d", ".example.com", "query name in DNS requests")
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queryCmd.Flags().Uint16VarP(&query_type, "type", "t", 1, "target record type")
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queryCmd.Flags().Uint16VarP(&query_class, "class", "c", 1, "target record class")
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queryCmd.Flags().IntVarP(&query_rate, "rate", "r", 10, "request rate (packets per second)")
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queryCmd.Flags().IntVarP(&query_packets, "packets", "n", 100, "total request number")
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rootCmd.AddCommand(queryCmd)
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}
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