调整portscan结构

Plugins/portscan.go

@@ -9,93 +9,58 @@ import (
 	"time"
 )
 
-func ProbeHosts(host string, ports <-chan int, respondingHosts chan<- string, done chan<- bool, adjustedTimeout int64) {
-	for port := range ports {
-		con, err := net.DialTimeout("tcp4", fmt.Sprintf("%s:%d", host, port), time.Duration(adjustedTimeout)*time.Second)
-		if err == nil {
-			con.Close()
-			address := host + ":" + strconv.Itoa(port)
-			result := fmt.Sprintf("%s open", address)
-			common.LogSuccess(result)
-			respondingHosts <- address
-		}
-	}
-	done <- true
+type Addr struct {
+	ip   string
+	port int
 }
 
-func ScanAllports(address string, probePorts []int, threads int, adjustedTimeout int64) ([]string, error) {
-	ports := make(chan int, 20)
-	results := make(chan string)
-	done := make(chan bool, threads)
-
-	for worker := 0; worker < threads; worker++ {
-		go ProbeHosts(address, ports, results, done, adjustedTimeout)
-	}
-
-	for _, port := range probePorts {
-		ports <- port
-	}
-	close(ports)
-
-	var responses = []string{}
-	for {
-		select {
-		case found := <-results:
-			responses = append(responses, found)
-		case <-done:
-			threads--
-			if threads == 0 {
-				return responses, nil
-			}
-		}
-	}
-}
-
-func TCPportScan(hostslist []string, ports string, timeout int64) []string {
+func PortScan(hostslist []string, ports string, timeout int64) []string {
 	var AliveAddress []string
 	probePorts := common.ParsePort(ports)
-	lm := 20
-	if len(hostslist) > 5 && len(hostslist) <= 50 {
-		lm = 40
-	} else if len(hostslist) > 50 && len(hostslist) <= 100 {
-		lm = 50
-	} else if len(hostslist) > 100 && len(hostslist) <= 150 {
-		lm = 60
-	} else if len(hostslist) > 150 && len(hostslist) <= 200 {
-		lm = 70
-	} else if len(hostslist) > 200 {
-		lm = 75
-	}
-
-	thread := 10
-	if len(probePorts) > 500 && len(probePorts) <= 4000 {
-		thread = len(probePorts) / 100
-	} else if len(probePorts) > 4000 && len(probePorts) <= 6000 {
-		thread = len(probePorts) / 200
-	} else if len(probePorts) > 6000 && len(probePorts) <= 10000 {
-		thread = len(probePorts) / 350
-	} else if len(probePorts) > 10000 && len(probePorts) < 50000 {
-		thread = len(probePorts) / 400
-	} else if len(probePorts) >= 50000 && len(probePorts) <= 65535 {
-		thread = len(probePorts) / 500
-	}
-
+	workers := common.Threads
+	Addrs := make(chan Addr)
+	results := make(chan string)
 	var wg sync.WaitGroup
-	mutex := &sync.Mutex{}
-	limiter := make(chan struct{}, lm)
-	for _, host := range hostslist {
-		wg.Add(1)
-		limiter <- struct{}{}
-		go func(host string) {
-			defer wg.Done()
-			if aliveAdd, err := ScanAllports(host, probePorts, thread, timeout); err == nil && len(aliveAdd) > 0 {
-				mutex.Lock()
-				AliveAddress = append(AliveAddress, aliveAdd...)
-				mutex.Unlock()
+
+	//接收结果
+	go func() {
+		for found := range results {
+			AliveAddress = append(AliveAddress, found)
+		}
+	}()
+
+	//多线程扫描
+	for i := 0; i < workers; i++ {
+		go func() {
+			for addr := range Addrs {
+				PortConnect(addr, results, timeout)
+				wg.Done()
 			}
-			<-limiter
-		}(host)
+		}()
 	}
+
+	//添加扫描目标
+	for _, host := range hostslist {
+		for _, port := range probePorts {
+			Addrs <- Addr{host, port}
+			wg.Add(1)
+		}
+	}
+
 	wg.Wait()
+	close(Addrs)
+	close(results)
 	return AliveAddress
 }
+
+func PortConnect(addr Addr, respondingHosts chan<- string, adjustedTimeout int64) {
+	host, port := addr.ip, addr.port
+	con, err := net.DialTimeout("tcp4", fmt.Sprintf("%s:%d", host, port), time.Duration(adjustedTimeout)*time.Second)
+	if err == nil {
+		con.Close()
+		address := host + ":" + strconv.Itoa(port)
+		result := fmt.Sprintf("%s open", address)
+		common.LogSuccess(result)
+		respondingHosts <- address
+	}
+}

Plugins/scanner.go

@@ -25,7 +25,7 @@ func Scan(info common.HostInfo) {
 		if info.Scantype == "icmp" {
 			return
 		}
-		AlivePorts := TCPportScan(Hosts, info.Ports, info.Timeout)
+		AlivePorts := PortScan(Hosts, info.Ports, info.Timeout)
 		if info.Scantype == "portscan" {
 			return
 		}

common/flag.go

@@ -27,7 +27,7 @@ func Flag(Info *HostInfo) {
 	flag.StringVar(&Info.Password, "pwd", "", "password")
 	flag.Int64Var(&Info.Timeout, "time", 3, "Set timeout")
 	flag.StringVar(&Info.Scantype, "m", "all", "Select scan type ,as: -m ssh")
-	flag.IntVar(&Threads, "t", 200, "Thread nums")
+	flag.IntVar(&Threads, "t", 600, "Thread nums")
 	flag.StringVar(&HostFile, "hf", "", "host file, -hs ip.txt")
 	flag.StringVar(&Userfile, "userf", "", "username file")
 	flag.StringVar(&Passfile, "pwdf", "", "password file")