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feature: pcapConverter also decodes appHandshake

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uhi22 2024-08-06 00:14:13 +02:00
parent 9e3dc7ca04
commit fc5e2834f1
1 changed files with 11 additions and 0 deletions
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11
pcapConverter.py
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@ -87,6 +87,7 @@ def convertPcapToTxt(inputFileName):
t2PreChargeBegin = 0 t2PreChargeBegin = 0
t3CurrentDemandBegin = 0 t3CurrentDemandBegin = 0
numberOfPackets=0 numberOfPackets=0
decodeAlsoAsApplHandshake=0
for packet in cap: for packet in cap:
numberOfPackets+=1 numberOfPackets+=1
#print(packet) #print(packet)
@ -105,6 +106,16 @@ def convertPcapToTxt(inputFileName):
#print(decoded) #print(decoded)
print(sHeader, file=fileOut) print(sHeader, file=fileOut)
print(decoded, file=fileOut) print(decoded, file=fileOut)
if (decodeAlsoAsApplHandshake>0): # if it may be applHandShake, caused by the previous message, we decode also this.
print("Alternative decoding as applHandshake", file=fileOut)
decodeAlsoAsApplHandshake-=1
decoded=exiConnector.exiDecode(strExi, "DH")
print(decoded, file=fileOut)
if (decoded.find("error-")>0): # a decoding error usually points to wrong protocol, so most likely it is appHandShake.
print("maybe this is no DIN. Trying to decode as applHandshake", file=fileOut)
decodeAlsoAsApplHandshake=1
decoded=exiConnector.exiDecode(strExi, "DH")
print(decoded, file=fileOut)
if (decoded.find("SessionSetupReq")>0): if (decoded.find("SessionSetupReq")>0):
if ((t1CableCheckBegin>0) and (t2PreChargeBegin>t1CableCheckBegin) and (t3CurrentDemandBegin>t2PreChargeBegin)): if ((t1CableCheckBegin>0) and (t2PreChargeBegin>t1CableCheckBegin) and (t3CurrentDemandBegin>t2PreChargeBegin)):
print("charger MAC " + chargerMAC + " " + getManufacturerFromMAC(chargerMAC)) print("charger MAC " + chargerMAC + " " + getManufacturerFromMAC(chargerMAC))