{
    "info": {
        "author": "Diarmuid Collins",
        "author_email": "dcollins@curtisswright.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 3 - Alpha",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: GNU General Public License v2 (GPLv2)",
            "Operating System :: OS Independent",
            "Programming Language :: Python",
            "Topic :: Software Development :: Libraries :: Python Modules"
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        "description": "AcraNetwork [![Build Status](https://travis-ci.org/diarmuidcwc/AcraNetwork.svg?branch=master)](https://travis-ci.org/diarmuidcwc/AcraNetwork)\n===========\n\nA collection of classes that can be used to decom network or PCM based FTI traffic\n\n#Summary\n\n* iNetX : Class for packing and unpacking iNetX objects\n* IENA  : Class for packing and unpacking IENA objects\n* SimpleEthernet : A  simplified set of classes for Ethernet, IP and UDP packets. These are not fully featured is\nsufficient for the network systems used in the KAM500 networks\n* Pcap : Class and helper methods for reading pcap files\n* McastSocket : Class to bind to ports to capture multicast packets\n\n#Install\nInstall using the standard setuptools install method\n```shell\npython setup.py install\n```\nor clone this repository to your local directory\n\n```shell\ngit clone https://github.com/diarmuidcwc/AcraNetwork.git\n```\n\n#Classes\n\n##iNetx\nThis will create an iNetx object. Once you have an iNetX object you can then either\n* assign values to the various fields and then convert(pack) the object into a buffer that is suitable for transmission\nor writing to a file or\n* convert (unpack) a buffer containing an iNetX packet\n\n###Methods\n\n####pack()\n\nThis method will take an iNetX object and return a string buffer containing the binary representation of the iNetX packet\nThis method is typically run if you want to write an iNetX packet to a file or to transmit over the network\n\n####unpack(buffer)\n\nThis method will convert a binary buffer into an iNetX object. This is typically used to convert some data read from a\npcap file or captured from the network into the iNetX object.\n\n####setPacketTime(utctimeinseconds,timeinmicroseconds)\n\nThis method will accept two arguments, utctimeinseconds and nanoseconds and assign the time to the iNetX object\n\n\n##IENA\n\nThis will create an IENA object. Once you have an IENA object you can then either\n* assign values to the various fields and then convert(pack) the object into a buffer that is suitable for transmission\nor writing to a file or\n* convert (unpack) a buffer containing an IENA packet\n\n###Methods\n\n####pack()\n\nThis method will take an IENA object and return a string buffer containing the binary representation of the IENA packet.\nThis method is typically run if you want to write an IENA packet to a file or to transmit over the network\n\n####unpack(buffer)\n\nThis method will convert a binary buffer into an IENA object. This is typically used to convert some data read from a\npcap file or captured from the network into the IENA object.\n\n####setPacketTime(utctimeinseconds,timeinnanoseconds)\n\nThis method will accept two arguments, utctimeinseconds and microseconds and assign the time to the IENA object\n\n##Ethernet / IP / UDP\n\nEach of these classes will create the corresponding object. Once you create this object you can then either\n* assign values to the various fields and then convert(pack) the object into a buffer that is suitable for transmission\nor writing to a file or\n* convert (unpack) a buffer containing the packet\n\n###Methods\n\n####pack()\n\nThis method will take the object and return a string buffer containing the binary representation of the packet.\nThis method is typically run if you want to write a packet to a file or to transmit over the network\n\n####unpack(buffer)\n\nThis method will convert a binary buffer into an object. This is typically used to convert some data read from a\npcap file or captured from the network into the IENA object.\n\n##Pcap\n\nThis class will allow you to read and write to a Pcap file. Due to the potentially large size of pcap files, the complete\nfile is not read or written in one operation but in pieces. This keeps the memory usage to a minimum\n\n###Methods\n\n####__init__()\n\nTo create a new pcap object you need to supply a filename and a flag to indicate if you want to read or write to this\nfile. eg\n```python\npcap_for_reading = pcap.Pcap(\"input.pcap\") \t\t\t\t\t\t# Create a new Pcap object based on reading from the file\npcap_for_writing = pcap.Pcap(\"output.pcap\",mode='w')\t# Create a new Pcap object that will be writing to a file\npcap_for_appending = pcap.Pcap(\"output.pcap\",mode='a')\t# Open an existing pcap file for appending\n```\n\n####readGlobalHeader()\n\nWhen reading a pcap file this should be the first method called. This method will populate the fields in the Pcap object\nas described in the [Pcap Wiki](http://wiki.wireshark.org/Development/LibpcapFileFormat#Global_Header)\n\n####readAPacket()\n\nThis method is called when reading a pcap file. It can be called repeatedly until the end of the file is reached and\nthe method raises an IOError exception\nThis method will return a PcapRecord object which will contain one pcap record, containing the header and payload\n\n####writeGlobalHeader()\n\nWhen creating a new pcap file, this method should be called first. It will write a valid global header to the file.\nWhen creating a new Pcap object the defaults used in the object will generate a standard pcap file that will support\nEthernet packets\n\n####writeARecord(pcaprecord)\n\nWrite out one pcap record to the file. The argument is required to be a PcapRecord object\n\n####close()\n\nClose the pcap file\n\n\n\n\n#Usage\nHere are two brief examples on how to create and read a pcap file. Further examples can be viewed in the examples\ndirectory or in the unittest folder\n\nTo read in a pcap file with multiple ethernet packets all containing an iNetX packet wrapped in UDP\n\n```python\nimport sys\nsys.path.append(\"..\")\n\nimport AcraNetwork.iNetX as inetx\nimport AcraNetwork.SimpleEthernet as SimpleEthernet\nimport AcraNetwork.Pcap as pcap\n\nimport struct\nmypcap = pcap.Pcap(\"inetx_test.pcap\")       # Read the pcap file\nmypcap.readGlobalHeader()\nwhile True:\n\t# Loop through the pcap file reading one packet at a time\n\ttry:\n\t\tmypcaprecord = mypcap.readAPacket()\n\texcept IOError:\n\t\t# End of file reached\n\t\tbreak\n\n\tethpacket = SimpleEthernet.Ethernet()   # Create an Ethernet object\n\tethpacket.unpack(mypcaprecord.packet)   # Unpack the pcap record into the eth object\n\tippacket =  SimpleEthernet.IP()         # Create an IP packet\n\tippacket.unpack(ethpacket.payload)      # Unpack the ethernet payload into the IP packet\n\tudppacket = SimpleEthernet.UDP()        # Create a UDP packet\n\tudppacket.unpack(ippacket.payload)      # Unpack the IP payload into the UDP packet\n\tinetxpacket = inetx.iNetX()             # Create an iNetx object\n\tinetxpacket.unpack(udppacket.payload)   # Unpack the UDP payload into this iNetX object\n\tprint \"INETX: StreamID ={:08X} Sequence = {:8d} PTP Seconds = {}\".format(inetxpacket.streamid,inetxpacket.sequence,inetxpacket.ptptimeseconds)\n```\n\n#To Make a Distribution\n```\npython setup.py sdist bdist_wininst upload\n```",
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