super scanner

Network_and_802.11/scapy/super_scanner.py

@@ -7,44 +7,55 @@
 import random
 
 RANGE = "192.168.1.0/24"
-PORTS = [22,23,80,443,449]
+PORTS = [22, 23, 80, 443, 449]
+CODES = [1, 2, 3, 9, 10, 13]
+RANGE_IP = netaddr.IPNetwork(RANGE)
 
-addresses = netaddr.IPNetwork(RANGE)
 
-def portScan(host, ports):
+def port_scanner(host, ports):
     for dstPort in ports:
         srcPort = random.randint(1025,65534)
         resp = sr1(IP(dst=host)/TCP(sport=srcPort,dport=dstPort,flags="S"),timeout=1,verbose=0)
 
         if (str(type(resp)) == "<type 'NoneType'>"):
-            print host + ":" + str(dstPort) + " is filtered (silently dropped)."
+            print host + ":" + str(dstPort) + " is filtered (dropped)."
 
         elif(resp.haslayer(TCP)):
+
             if(resp.getlayer(TCP).flags == 0x12):
-                send_rst = sr(IP(dst=host)/TCP(sport=srcPort,dport=dstPort,flags="R"),timeout=1,verbose=0)
+                send_rst = sr(IP(dst=host)/TCP(sport=srcPort, dport=dstPort, flags="R"),\
+                    timeout=1, verbose=0)
                 print host + ":" + str(dstPort) + " is open."
+
             elif (resp.getlayer(TCP).flags == 0x14):
                 print host + ":" + str(dstPort) + " is closed."
+
             elif(resp.haslayer(ICMP)):
-                if(int(resp.getlayer(ICMP).type)==3 and int(resp.getlayer(ICMP).code) in [1,2,3,9,10,13]):
-                    print host + ":" + str(dstPort) + " is filtered (silently dropped)."
+                if(int(resp.getlayer(ICMP).type) == 3 and int(resp.getlayer(ICMP).code) in \
+                    CODES):
+                    print host + ":" + str(dstPort) + " is filtered  dropped)."
+
 
 def super_scanner():
     liveCounter = 0
-    for addr in addresses:
-        if (addr == addresses.network or addr == addresses.broadcast):
+    for addr in RANGE_IP:
+        if (addr == RANGE_IP.network or addr == RANGE_IP.broadcast):
             continue
 
-        resp = sr1(IP(dst=str(addr))/ICMP(),timeout=2,verbose=0)
+        resp = sr1(IP(dst=str(addr))/ICMP(), timeout=2, verbose=0)
         if (str(type(resp)) == "<type 'NoneType'>"):
             print str(addr) + " is down or not responding."
-        elif (int(resp.getlayer(ICMP).type)==3 and int(resp.getlayer(ICMP).code) in [1,2,3,9,10,13]):
+
+        elif (int(resp.getlayer(ICMP).type) == 3 and int(resp.getlayer(ICMP).code) in CODES):
             print str(addr) + " is blocking ICMP."
+
         else:
-            portScan(str(addr),PORTS)
+            port_scanner(str(addr),PORTS)
             liveCounter += 1
 
-    print "Out of " + str(addresses.size) + " hosts, " + str(liveCounter) + " are online."
+    print "Scanned hosts: " + str(RANGE_IP.size)
+    print "Online hosts: " + str(liveCounter)
+
 
 if __name__ == '__main__':
     super_scanner()