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Pyshark- To Allowing Python Packet Parsing Using Wireshark


Python wrapper for tshark, allowing python packet parsing using wireshark dissectors.

See https://github.com/KimiNewt/pyshark/ for documentation.

Pyshark features a few "Capture" objects (Live, Remote, File, InMem). Each of those files read from their respective source and then can be used as an iterator to get their packets. Each capture object can also receive various filters so that only some of the incoming packets will be saved.

Installation

All Platforms

Simply run the following to install the latest from pypi

pip install pyshark

Or install from the git repository:

git clone https://github.com/KimiNewt/pyshark.git cd pyshark/src python setup.py install

Mac OS X

You may have to install libxml which can be unexpected. If you receive an error from clang or an error message about libxml, run the following:

xcode-select --install pip install libxml

You will probably have to accept a EULA for XCode so be ready to click an "Accept" dialog in the GUI.

Usage

Reading from a capture file:

>>> import pyshark >>> cap = pyshark.FileCapture('/tmp/mycapture.cap') >>> cap <FileCapture /tmp/mycapture.cap (589 packets)> >>> print cap[0] Packet (Length: 698) Layer ETH:         Destination: BLANKED         Source: BLANKED         Type: IP (0x0800) Layer IP:         Version: 4         Header Length: 20 bytes         Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00: Not-ECT (Not ECN-Capable Transport))         Total Length: 684         Identification: 0x254f (9551)         Flags: 0x00         Fragment offset: 0         Time to live: 1         Protocol: UDP (17)         Header checksum: 0xe148 [correct]         Source: BLANKED         Destination: BLANKED   ...

Other options

param keep_packets: Whether to keep packets after reading them via next(). Used to conserve memory when reading large caps.param input_file: Either a path or a file-like object containing either a packet capture file (PCAP, PCAP-NG..) or a TShark xml.param display_filter: A display (wireshark) filter to apply on the cap before reading it.param only_summaries: Only produce packet summaries, much faster but includes very little informationparam disable_protocol: Disable detection of a protocol (tshark > version 2)param decryption_key: Key used to encrypt and decrypt captured traffic.param encryption_type: Standard of encryption used in captured traffic (must be either 'WEP', 'WPA-PWD', or 'WPA-PWK'. Defaults to WPA-PWK.param tshark_path: Path of the tshark binary.

Reading from a live interface:

>>> capture = pyshark.LiveCapture(interface='eth0') >>> capture.sniff(timeout=50) >>> capture <LiveCapture (5 packets)> >>> capture[3] <UDP/HTTP Packet> for packet in capture.sniff_continuously(packet_count=5):     print 'Just arrived:', packet

Other options param interface: Name of the interface to sniff on. If not given, takes the first available.param bpf_filter: BPF filter to use on packets.param display_filter: Display (wireshark) filter to use.param only_summaries: Only produce packet summaries, much faster but includes very little informationparam disable_protocol: Disable detection of a protocol (tshark > version 2)param decryption_key: Key used to encrypt and decrypt captured traffic.param encryption_type: Standard of encryption used in captured traffic (must be either 'WEP', 'WPA-PWD', or 'WPA-PWK'. Defaults to WPA-PWK).param tshark_path: Path of the tshark binaryparam output_file: Additionally save captured packets to this file.

For more depth analysis visit SOURCE : 1


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