gfw test
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MDK
15
go.mod
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15
go.mod
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module gfw_test
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go 1.20
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require github.com/miekg/dns v1.1.55
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require (
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github.com/mattn/go-colorable v0.1.13 // indirect
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github.com/mattn/go-isatty v0.0.19 // indirect
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github.com/rs/zerolog v1.29.1 // indirect
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golang.org/x/mod v0.7.0 // indirect
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golang.org/x/net v0.2.0 // indirect
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golang.org/x/sys v0.10.0 // indirect
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golang.org/x/tools v0.3.0 // indirect
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)
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30
go.sum
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30
go.sum
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github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
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github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
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github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
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github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
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github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
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github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
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github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
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github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
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github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
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github.com/miekg/dns v1.1.55 h1:GoQ4hpsj0nFLYe+bWiCToyrBEJXkQfOOIvFGFy0lEgo=
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github.com/miekg/dns v1.1.55/go.mod h1:uInx36IzPl7FYnDcMeVWxj9byh7DutNykX4G9Sj60FY=
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github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/rs/xid v1.4.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
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github.com/rs/zerolog v1.29.1 h1:cO+d60CHkknCbvzEWxP0S9K6KqyTjrCNUy1LdQLCGPc=
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github.com/rs/zerolog v1.29.1/go.mod h1:Le6ESbR7hc+DP6Lt1THiV8CQSdkkNrd3R0XbEgp3ZBU=
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golang.org/x/mod v0.7.0 h1:LapD9S96VoQRhi/GrNTqeBJFrUjs5UHCAtTlgwA5oZA=
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golang.org/x/mod v0.7.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
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golang.org/x/net v0.2.0 h1:sZfSu1wtKLGlWI4ZZayP0ck9Y73K1ynO6gqzTdBVdPU=
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golang.org/x/net v0.2.0/go.mod h1:KqCZLdyyvdV855qA2rE3GC2aiw5xGR5TEjj8smXukLY=
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golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
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golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
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golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
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golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/tools v0.3.0 h1:SrNbZl6ECOS1qFzgTdQfWXZM9XBkiA6tkFrH9YSTPHM=
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golang.org/x/tools v0.3.0/go.mod h1:/rWhSS2+zyEVwoJf8YAX6L2f0ntZ7Kn/mGgAWcipA5k=
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121
injection_probe.go
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121
injection_probe.go
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package main
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import (
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"flag"
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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/miekg/dns"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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)
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func dnsQuery(ip, domain string) (*dns.Msg, error) {
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domain = dns.Fqdn(domain)
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addr := ip + ":53"
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m := new(dns.Msg)
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m.SetQuestion(domain, dns.TypeA)
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m.RecursionDesired = true
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res, err := dns.Exchange(m, addr)
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return res, err
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}
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func main() {
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domain := flag.String("domain", "", "Target domain")
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targetIP := flag.String("server", "", "server IP address")
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packetsPerSecond := flag.Int("speed", 0, "Packets per second")
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packetNum := flag.Int("num", 1000, "total packets")
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expectedResult := flag.String("truth", "", "Expected result")
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random_flag := flag.Bool("random", false, "random subdomain")
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flag.Parse()
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if *domain == "" || *targetIP == "" || *packetsPerSecond == 0 {
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flag.Usage()
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return
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}
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currentTime := strconv.FormatInt(time.Now().Unix(), 10)
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totalRequests := *packetNum
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responseTimes := make([]int64, 0, totalRequests)
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successfulRequests := 0
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validResponses := 0
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zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
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var query_tasks sync.WaitGroup
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fmt.Println("testing......")
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for i := 0; i < totalRequests; i++ {
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query_tasks.Add(1)
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go func() {
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var prefix string
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start := time.Now()
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if *random_flag {
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prefix = strings.Join([]string{currentTime, strconv.Itoa(i), ""}, "-")
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} else {
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prefix = ""
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}
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query_dn := prefix + (*domain)
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res, err := dnsQuery(*targetIP, query_dn)
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elapsed := time.Since(start).Microseconds()
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if err == nil {
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successfulRequests += 1
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log.Log().Msg("gfw worked!")
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responseTimes = append(responseTimes, elapsed)
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if *expectedResult == "" {
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if *random_flag {
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if (len(res.Answer) != 1) || (res.MsgHdr.Rcode != dns.RcodeSuccess) {
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validResponses += 1
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log.Log().Msg("gfw escaped!")
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//fmt.Printf("answer: %d rcode: %d\n", len(res.Answer), res.MsgHdr.Rcode)
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}
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} else {
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if len(res.Answer) > 1 {
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validResponses += 1
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log.Log().Msg("gfw escaped!")
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//fmt.Println(elapsed)
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}
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}
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} else {
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if a, ok := res.Answer[0].(*dns.A); ok {
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//fmt.Println(a.A.String())
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if a.A.String() == *expectedResult {
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validResponses += 1
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log.Log().Msg("gfw escaped!")
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//fmt.Println(elapsed)
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}
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}
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}
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}
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query_tasks.Done()
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}()
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time.Sleep(time.Second / time.Duration(*packetsPerSecond))
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}
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query_tasks.Wait()
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var sum_rtt int64
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var max_rtt int64
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var min_rtt int64
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sum_rtt = 0
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max_rtt = 0
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min_rtt = 3000000
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for _, rtt := range responseTimes {
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sum_rtt += rtt
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if rtt < min_rtt {
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min_rtt = rtt
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}
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if rtt > max_rtt {
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max_rtt = rtt
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}
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}
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avg_rtt := float64(sum_rtt) / float64(len(responseTimes))
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valid_rate := float64(validResponses) / float64(successfulRequests)
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fmt.Println(avg_rtt, max_rtt, min_rtt, successfulRequests, validResponses, valid_rate)
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}
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