libwifi: A C Library for 802.11 WiFi Frame Parsing and Generation
By
vitalnodo
Properly proved. Has structure, has flavour, has a point.
Summary
libwifi is a C library for parsing and generating 802.11 WiFi frames, providing functions and structs to simplify working with WiFi packet data. The article explains how to use the library, including linking with -lwifi, parsing frames from captured packets (such as via libpcap), and accessing frame-specific data through a structured parsing workflow.
Key quotes
· 3 pulledlibwifi exposes functions and structs to make parsing and generating WiFi frames very easy
When using libwifi, be sure to pass -lwifi to the linker, and make sure that the libwifi shared library is installed on the system
The generic flow of a program using libwifi to parse frames is a loop that reads captured packets as raw data, such as with libpcap from a file or monitor interface, then parse the frame into a common datatype, then parse again to retrieve frame specific data
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