gs105e.py

   1 #!/usr/bin/python
   2 import socket
   3 import time
   4 import binascii
   5 import pprint
   6 import struct
   7 import random
   8
   9 class gs105e:
  10         def __init__(self,host,port):
  11                 self.myhost = host
  12                 self.myport = port
  13                 self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
  14                 self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
  15                 self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
  16                 self.socket.bind((host, port))
  17                 self.seq = random.randint(100,2000)
  18                 self.srcmac = 0x00218698da1e
  19
  20         def recv(self,recvfunc,maxlen=8192,timeout=0.005):
  21                 self.socket.settimeout(timeout)
  22                 try:
  23                         message, address = self.socket.recvfrom(maxlen)
  24                 except socket.timeout:
  25                         return None
  26                 self.recvfunc(message,address)
  27                 self.recv(recvfunc,maxlen,timeout)
  28
  29         def parse_packet(self,p,hex=0):
  30                 data = {}
  31                 data["seq"]= p[22:24]
  32                 data["cmd"]= p[32:34]
  33                 data["mymac"]= p[8:14]
  34                 data["theirmac"]= p[14:20]
  35                 if hex == 1:
  36                         for a in data:
  37                                 data[a]=binascii.hexlify(data[a])
  38                 return data
  39
  40         def recvfunc(self,m,a):
  41                 hexdata = self.parse_packet(m,1)
  42                 data = self.parse_packet(m)
  43
  44                 if data["seq"] == "\x00\x01":
  45                         pass
  46                 print hexdata["theirmac"]
  47
  48         def send(self,host,port,data):
  49                 self.socket.sendto(data,(host,port))
  50                 self.seq+=1
  51
  52
  53         def baseudp(self,cmd,ctype=0x0101,destmac=0):
  54                 reserved = "\x00"
  55                 data = struct.pack(">h",ctype) + 6* reserved + struct.pack('>LHLH', self.srcmac >> 16, self.srcmac & 0xffff, destmac >> 16, destmac & 0xffff) + 2*reserved
  56                 data += struct.pack(">h",self.seq)
  57                 data +=  "NSDP" + 4 * reserved + cmd
  58                 return data
  59
  60         def discover(self):
  61                 reserved = "\x00"
  62                 cmd = "\x00\x01"
  63
  64                 data = self.baseudp(cmd)
  65                 data += 3 * "\x00" + "\x02"
  66                 data += 3 * "\x00" + "\x03" +  3 * "\x00" + "\x04" + 3* "\x00" + "\x05"
  67                 data += 3 * "\x00" + "\x06" +  3 * "\x00" + "\x07" + 3* "\x00" + "\x08"
  68                 data += 3 * "\x00" + "\x0b" +  3 * "\x00" + "\x0c" + 3* "\x00" + "\x0d"
  69                 data += 3 * "\x00" + "\x0e" +  3 * "\x00" + "\x0f" + 2 * "\x00"
  70                 data +=  "\x74" + 3 * "\x00"
  71                 data += 2* "\xff" + 2* "\x00"
  72 #               self.send("255.255.255.255",63322, data)
  73 #               time.sleep(1)
  74                 self.send("255.255.255.255",63322, data)
  75                 time.sleep(0.7)
  76
  77                 data = self.baseudp(cmd)
  78                 data += 3 * "\x00" + "\x02"
  79                 data += 3 * "\x00" + "\x03" +  3 * "\x00" + "\x04" + 3* "\x00" + "\x05"
  80                 data += 3 * "\x00" + "\x06" +  3 * "\x00" + "\x07" + 3* "\x00" + "\x08"
  81                 data += 3 * "\x00" + "\x0b" +  3 * "\x00" + "\x0c" + 3* "\x00" + "\x0d"
  82                 data += 3 * "\x00" + "\x0e" +  3 * "\x00" + "\x0f" + 2 * "\x00"
  83                 data += 2* "\xff" + 2* "\x00"
  84         #       self.send("255.255.255.255",63322, data)
  85                 self.recv(None)
  86
  87         def passwd(self, dest, oldpass, newpass):
  88                 reserved = "\x00"
  89                 cmd = "\x00\x0a"
  90
  91                 data = self.baseudp(cmd, destmac=dest, ctype=0x0103)
  92                 data += struct.pack(">h", len(oldpass))
  93                 data += oldpass
  94                 data += struct.pack(">h", 9)
  95                 data += struct.pack(">h", len(newpass))
  96                 data += newpass
  97                 data += 2* "\xff" + 2* "\x00"
  98                 self.send("255.255.255.255",63322, data)
  99                 time.sleep(0.2)
 100                 self.recv(None)
 101
 102 g = gs105e('',63321)
 103 #g.discover()
 104 g.passwd(0xe091f5936b94, 'kat', 'hemmeligt')