mirror of
https://github.com/uhi22/pyPLC.git
synced 2024-11-10 01:05:42 +00:00
added tkinter top level module and submodules
This commit is contained in:
uhi22
parent
9b8734d4e7
commit
d29ca27a78
4 changed files with 259 additions and 72 deletions
58
pyPlc.py
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58
pyPlc.py
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# This is a simple Tkinter program, running a main loop and reacting on keys
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#
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# Tested on Windows10 with python 3.9
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#
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# https://groups.google.com/g/comp.lang.python/c/dldnjWRX3lE/m/cL69gG3fCAAJ
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#------------------------------------------------------------
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import tkinter as tk
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import time
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import pyPlcWorker
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def storekeyname(event):
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global nKeystrokes
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global lastKey
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nKeystrokes+=1
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lastKey = event.keysym
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worker.handleUserAction(lastKey)
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return 'break' # swallow the event
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def inkey():
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global lastKey
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return lastKey
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lastKey = ''
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def cbAddToTrace(s):
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print(s)
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def cbShowStatus(s):
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print(s)
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lblStatus['text']=s
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root.update()
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root = tk.Tk()
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lastKey = ''
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display = tk.Label(root, text='No Key', width=30) # A textual element in the graphical user interface
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display.pack()
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lblHelp = tk.Label(root, text="x=exit, t=testframe")
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lblHelp.pack()
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lblStatus = tk.Label(root, text="(Status)")
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lblStatus.pack()
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# Bind the keyboard handler to all relevant elements:
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display.bind('<Key>', storekeyname)
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root.bind('<Key>', storekeyname)
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cbShowStatus("initialized")
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root.update()
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worker=pyPlcWorker.pyPlcWorker(cbAddToTrace, cbShowStatus)
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nMainloops=0
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nKeystrokes=0
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while lastKey!="x":
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time.sleep(.3) # 'do some calculation'
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nMainloops+=1
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# print(str(nMainloops) + " " + str(nKeystrokes)) # show something in the console window
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root.update()
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worker.mainfunction()
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#---------------------------------------------------------------
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160
pyPlcHomeplug.py
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160
pyPlcHomeplug.py
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# Preconditions:
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# Library pcap-ct (not libpcap, not pylibpcap, not pypcap)
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#
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# Version 2022-08-14:
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# - Selection of interfaces ok
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# - Sniffing of the SLAC-request ok
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# - Transmission of a demo message ok
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#
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import pcap
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def twoCharHex(b):
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strHex = "%0.2X" % b
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return strHex
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def showAsHex(mybytearray):
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packetlength = len(mybytearray)
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strHex = ""
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for i in range(0, packetlength):
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strHex = strHex + twoCharHex(mybytearray[i]) + " "
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print("len " + str(packetlength) + " data " + strHex)
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class pyPlcHomeplug():
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def showIpAddresses(self, mybytearray):
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addr = lambda pkt, offset: '.'.join(str(pkt[i]) for i in range(offset, offset + 4))
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print('SRC %-16s\tDST %-16s' % (addr(mybytearray, self.sniffer.dloff + 12), addr(mybytearray, self.sniffer.dloff + 16)))
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def showMacAddresses(self, mybytearray):
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strDestMac = ""
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for i in range(0, 6):
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strDestMac = strDestMac + twoCharHex(mybytearray[i]) + ":"
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strSourceMac = ""
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for i in range(5, 12):
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strSourceMac = strSourceMac + twoCharHex(mybytearray[i]) + ":"
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lastThreeOfSource = mybytearray[6]*256*256 + mybytearray[7]*256 + mybytearray[8]
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strSourceFriendlyName = ""
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if (lastThreeOfSource == 0x0a663a):
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strSourceFriendlyName="Fritzbox"
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if (lastThreeOfSource == 0x0064c3):
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strSourceFriendlyName="Ioniq"
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print("From " + strSourceMac + strSourceFriendlyName + " to " + strDestMac)
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def isHomeplug(self, mybytearray):
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blIsHomePlug=False
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if len(mybytearray)>(6+6+2):
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protocol=mybytearray[12]*256 + mybytearray[13]
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if (protocol == 0x88E1):
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blIsHomePlug=True
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print("HomePlug protocol")
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return blIsHomePlug
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def composeTestFrame(self):
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self.mytransmitbuffer = bytearray(60)
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# Destination MAC
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self.mytransmitbuffer[0]=0x04 # Ioniq MAC
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self.mytransmitbuffer[1]=0x65
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self.mytransmitbuffer[2]=0x65
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self.mytransmitbuffer[3]=0x00
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self.mytransmitbuffer[4]=0x64
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self.mytransmitbuffer[5]=0xC3
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# Source MAC
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self.mytransmitbuffer[6]=0x0A # Alpi MAC
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self.mytransmitbuffer[7]=0x19
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self.mytransmitbuffer[8]=0x4A
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self.mytransmitbuffer[9]=0x39
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self.mytransmitbuffer[10]=0xD6
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self.mytransmitbuffer[11]=0x98
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# Protocol
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self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV
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self.mytransmitbuffer[13]=0xE1
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self.mytransmitbuffer[14]=0x01 # version
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self.mytransmitbuffer[15]=0x65 # SLAC_PARAM.confirm
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self.mytransmitbuffer[16]=0x60 #
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self.mytransmitbuffer[17]=0x00 #
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self.mytransmitbuffer[18]=0x00 #
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self.mytransmitbuffer[19]=0xff #
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self.mytransmitbuffer[20]=0xff #
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self.mytransmitbuffer[21]=0xff #
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self.mytransmitbuffer[22]=0xff #
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self.mytransmitbuffer[23]=0xff #
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self.mytransmitbuffer[24]=0xff #
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self.mytransmitbuffer[25]=0x0A #
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self.mytransmitbuffer[26]=0x06 #
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self.mytransmitbuffer[27]=0x01 #
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self.mytransmitbuffer[28]=0x04 #
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self.mytransmitbuffer[29]=0x65 #
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self.mytransmitbuffer[30]=0x65 #
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self.mytransmitbuffer[31]=0x00 #
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self.mytransmitbuffer[32]=0x64 #
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self.mytransmitbuffer[33]=0xC3 #
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self.mytransmitbuffer[34]=0x00 #
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self.mytransmitbuffer[35]=0x00 #
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self.mytransmitbuffer[36]=0x04 #
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self.mytransmitbuffer[37]=0x65 #
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self.mytransmitbuffer[38]=0x65 #
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self.mytransmitbuffer[39]=0x00 #
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self.mytransmitbuffer[40]=0x64 #
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self.mytransmitbuffer[41]=0xC3 #
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self.mytransmitbuffer[42]=0x0 #
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self.mytransmitbuffer[43]=0x0 #
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self.mytransmitbuffer[44]=0x0 #
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self.mytransmitbuffer[45]=0x0 #
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self.mytransmitbuffer[46]=0x0 #
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self.mytransmitbuffer[47]=0x0 #
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self.mytransmitbuffer[48]=0x0 #
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self.mytransmitbuffer[49]=0x0 #
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self.mytransmitbuffer[50]=0x0 #
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self.mytransmitbuffer[51]=0x0 #
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self.mytransmitbuffer[52]=0x0 #
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self.mytransmitbuffer[53]=0x0 #
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self.mytransmitbuffer[54]=0x0 #
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self.mytransmitbuffer[55]=0x0 #
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self.mytransmitbuffer[56]=0x0 #
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self.mytransmitbuffer[57]=0x0 #
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self.mytransmitbuffer[58]=0x0 #
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self.mytransmitbuffer[59]=0x0 #
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def sendTestFrame(self):
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addToTrace("transmitting test frame...")
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self.composeTestFrame()
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self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
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def __init__(self, callbackAddToTrace=None, callbackShowStatus=None):
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self.mytransmitbuffer = bytearray("Hallo das ist ein Test", 'UTF-8')
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self.callbackAddToTrace = callbackAddToTrace
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self.callbackShowStatus = callbackShowStatus #self.sniffer = pcap.pcap(name=None, promisc=True, immediate=True, timeout_ms=50)
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# eth3 bedeutet: Dritter Eintrag von hinten, in der Liste der Interfaces, die von pcap.findalldevs geliefert wird.
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# Verbesserungsbedarf: Interface namensbasiert auswählen.
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self.sniffer = pcap.pcap(name="eth3", promisc=True, immediate=True, timeout_ms=50)
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def addToTrace(s):
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self.callbackAddToTrace(s)
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def mainfunction(self):
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for ts, pkt in self.sniffer:
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#print('%d' % (ts))
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if (self.isHomeplug(pkt)):
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self.showMacAddresses(pkt)
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showAsHex(pkt)
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if (pkt[15]==0x64): #SLAC_Request
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self.sendTestFrame()
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else:
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addToTrace("(other)")
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def close(self):
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self.sniffer.close()
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#sn = pyPlcHomeplug()
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#while (1):
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# print("Press control-C to stop")
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# sn.mainfunction()
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41
pyPlcWorker.py
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41
pyPlcWorker.py
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# Worker for the pyPLC
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#
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# Tested on Windows10 with python 3.9
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#
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#------------------------------------------------------------
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import pyPlcHomeplug
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class pyPlcWorker():
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def __init__(self, callbackAddToTrace=None, callbackShowStatus=None):
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print("initializing pyPlcWorker")
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self.something = "Hallo das ist ein Test"
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self.nMainFunctionCalls=0
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self.strUserAction = ""
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self.callbackAddToTrace = callbackAddToTrace
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self.callbackShowStatus = callbackShowStatus
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self.hp = pyPlcHomeplug.pyPlcHomeplug(self.callbackAddToTrace, self.callbackShowStatus)
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def addToTrace(self, s):
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self.callbackAddToTrace(s)
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def showStatus(self, s):
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self.callbackShowStatus(s)
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def mainfunction(self):
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self.nMainFunctionCalls+=1
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self.showStatus("pyPlcWorker loop " + str(self.nMainFunctionCalls))
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#self.hp.mainfunction()
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def handleUserAction(self, strAction):
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self.strUserAction = strAction
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self.addToTrace("UserAction " + strAction)
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if (strAction == "t"):
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self.addToTrace("sending test frame")
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self.hp.sendTestFrame()
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72
test1.py
72
test1.py
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# Vorraussetzungen:
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# Library pcap-ct (nicht libpcap, nicht pylibpcap, nicht pypcap)
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#
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# Stand 2022-08-14:
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# - Auswahl des Interaces ok
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# - Sniffen des SLAC-request ok
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# - Aussenden eine Demo-Botschaft ok
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#
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import pcap
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def twoCharHex(b):
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strHex = "%0.2X" % b
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return strHex
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def showAsHex(mybytearray):
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packetlength = len(mybytearray)
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strHex = ""
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for i in range(0, packetlength):
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strHex = strHex + twoCharHex(mybytearray[i]) + " "
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print("len " + str(packetlength) + " data " + strHex)
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def showIpAddresses(mybytearray):
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addr = lambda pkt, offset: '.'.join(str(pkt[i]) for i in range(offset, offset + 4))
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print('SRC %-16s\tDST %-16s' % (addr(mybytearray, sniffer.dloff + 12), addr(mybytearray, sniffer.dloff + 16)))
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def showMacAddresses(mybytearray):
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strDestMac = ""
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for i in range(0, 6):
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strDestMac = strDestMac + twoCharHex(mybytearray[i]) + ":"
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strSourceMac = ""
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for i in range(5, 12):
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strSourceMac = strSourceMac + twoCharHex(mybytearray[i]) + ":"
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lastThreeOfSource = mybytearray[6]*256*256 + mybytearray[7]*256 + mybytearray[8]
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strSourceFriendlyName = ""
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if (lastThreeOfSource == 0x0a663a):
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strSourceFriendlyName="Fritzbox"
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if (lastThreeOfSource == 0x0064c3):
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strSourceFriendlyName="Ioniq"
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print("From " + strSourceMac + strSourceFriendlyName + " to " + strDestMac)
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def isHomeplug(mybytearray):
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blIsHomePlug=False
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if len(mybytearray)>(6+6+2):
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protocol=mybytearray[12]*256 + mybytearray[13]
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if (protocol == 0x88E1):
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blIsHomePlug=True
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print("HomePlug protocol")
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return blIsHomePlug
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def sendTestFrame():
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print("todo...")
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mytransmitbuffer = bytearray("Hallo das ist ein Test", 'UTF-8')
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#sniffer = pcap.pcap(name=None, promisc=True, immediate=True, timeout_ms=50)
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# eth3 bedeutet: Dritter Eintrag von hinten, in der Liste der Interfaces, die von pcap.findalldevs geliefert wird.
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# Verbesserungsbedarf: Interface namensbasiert auswählen.
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sniffer = pcap.pcap(name="eth3", promisc=True, immediate=True, timeout_ms=50)
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print("Press control-C to stop")
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for ts, pkt in sniffer:
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#print('%d' % (ts))
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if (isHomeplug(pkt)):
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showMacAddresses(pkt)
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showAsHex(pkt)
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sendTestFrame()
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sniffer.sendpacket(bytes(mytransmitbuffer))
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else:
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print("(other)")
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sniffer.close()
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