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clientbot

Emulate Client (Python Script)

spykhanat.py

Convert pcap (capture network) on yaml file to see communication between server and client.

Usage

Launch network capture

sudo tcpdump -i [networkd card] -w [Pcap output]

ex.: sudo tcpdump -i eth0 -w capture-2020-11-28-17-37-57.pcap

Extract information

python3 spykhanat.py -m [localization msg.xml] --yaml [Yaml Output file] -w [localisation database.xml] -p [Pcap input] --filter-host-service='[Ip address: Port server khaganat]'

Ex.: python3 spykhanat.py -m ~/khanat/khanat-opennel-code/code/ryzom/common/data_common/msg.xml --yaml capture-2020-11-28-17-37-57.yml -w ~/khanat/khanat-opennel-code/code/ryzom/common/data_common/database.xml -p capture-2020-11-28-17-37-57.pcap --filter-host-service='127.0.0.1:47851'

Analyze result

you can see the result in yaml output

Field:

  • packet : raw data
  • block_Client : data sent by client
  • block_Server : data sent by server
  • state : message docoded or partially decoded)
  • impulse : impulse message
  • impulseserver : message impulse server decoded
  • Message : Message analyzed (one line by block)

Detail message format (ex.: <0:31> (Sint32) CurrentSendNumber => 42 : 00000000000000000000000000101010) (Type) [Function] => Value : [Value in binary] [(optional) value real]

  • position data : Begin:End
  • Format data (Signed/Unsigned Integer, String, Number of bit)
  • Function (type of value, function in khaganat)
  • Value : value in integer
  • Value in binary
  • Value convert for khaganat (sometimes is keyword)