A collection of classes that can be used to decom network or PCM based FTI traffic

• iNetX : Class for packing and unpacking iNetX objects
• IENA : Class for packing and unpacking IENA objects
• SimpleEthernet : A simplified set of classes for Ethernet, IP and UDP packets. These are not fully featured is sufficient for the network systems used in the KAM500 networks
• Pcap : Class and helper methods for reading pcap files
• McastSocket : Class to bind to ports to capture multicast packets

Install using the standard setuptools install method

python setup.py install

or clone this repository to your local directory

git clone https://github.com/diarmuidcwc/AcraNetwork.git

Here are two brief examples on how to create and read a pcap file. Further examples can be viewed in the examples directory or in the unittest folder

To read in a pcap file with multiple ethernet packets all containing an iNetX packet wrapped in UDP

import AcraNetwork.iNetX as inetx
import AcraNetwork.SimpleEthernet as SimpleEthernet
import AcraNetwork.Pcap as pcap

import struct
mypcap = pcap.Pcap("inetx_test.pcap")       # Read the pcap file
for mypcaprecord in mypcap:

        ethpacket = SimpleEthernet.Ethernet()   # Create an Ethernet object
        ethpacket.unpack(mypcaprecord.packet)   # Unpack the pcap record into the eth object
        ippacket =  SimpleEthernet.IP()         # Create an IP packet
        ippacket.unpack(ethpacket.payload)      # Unpack the ethernet payload into the IP packet
        udppacket = SimpleEthernet.UDP()        # Create a UDP packet
        udppacket.unpack(ippacket.payload)      # Unpack the IP payload into the UDP packet
        inetxpacket = inetx.iNetX()             # Create an iNetx object
        inetxpacket.unpack(udppacket.payload)   # Unpack the UDP payload into this iNetX object
        print("INETX: StreamID ={:08X} Sequence = {:8d} PTP Seconds = {}".format(inetxpacket.streamid,inetxpacket.sequence,inetxpacket.ptptimeseconds))

pip  install --upgrade pip wheel setuptools twine
rm dist/*
python ./setup.py sdist bdist_wheel --universal sdist
twine upload dist/*