PAL (Pcap Analysis Library)
PAL (Pcap Analysis Library) is a free Rust framework and command-line toolkit for analyzing PCAP files on Linux.
What PAL (Pcap Analysis Library) is
PAL (Pcap Analysis Library) is a free Rust framework and command-line toolkit for analyzing PCAP files on Linux. It reconstructs network data across layers, including fragmented, incomplete, or encapsulated traffic. The project includes an analyzer, reusable libraries, a PCAP rewrite tool, and a verbose test analyzer. Plugins can process packet data at network layers and react when flows start or end, but they must be embedded in the binary because dynamic libraries are unsupported. Worker threads are available, with packets from each connection kept on one worker; the documented default is one thread. Live capture is experimental, requires the live build feature and pcap library, and needs CAP_NET_RAW, with CAP_NET_ADMIN possibly required to list interfaces. PAL supports pcap and pcapng, includes protocol dissectors, and does not decrypt traffic. It is licensed under Apache 2.0 or MIT.
Good
- Free under Apache 2.0 or MIT
- Reconstructs fragmented and encapsulated data
- Includes analyzer and PCAP rewrite tools
- Supports pcap and pcapng files
- Worker threads preserve per-connection order
Watch out
- Linux platform only
- Live capture is experimental
- Dynamic plugin libraries are unsupported
- No traffic decryption
Who it suits
PAL suits Linux users analyzing packet captures and developers creating network-data plugins. Building and using it requires Rust Cargo, and live capture requires additional privileges.
Verdict
PAL provides a focused, programmable toolkit for offline PCAP analysis, with protocol dissectors and extensible plugins. Its command-line workflow and build requirements favor technical users comfortable with Rust and Linux.
The facts
Each one read from PAL (Pcap Analysis Library)'s own pages, with the date it was checked.
What it does
- Build
- The README describes building the tools with Cargo in release or debug mode.checked 8 Oct 2001
- Build and use
- The README describes building with Cargo and running the pcap-analyzer command on PCAP files.checked 7 Oct 2001
- Concurrency
- Analysis can use worker threads, with packets from a connection dispatched to the same worker to preserve order.checked 8 Oct 2001
- Intended users
- The project is aimed at users analyzing packet captures and developers building plugins for network data analysis.checked 7 Oct 2001
- License
- The project is offered under either the Apache License 2.0 or the MIT license.checked 8 Oct 2001
- Live capture
- Experimental live packet capture is available when built with the live feature and the required dependencies.checked 8 Oct 2001
- Live capture permissions
- Live capture requires CAP_NET_RAW and may require CAP_NET_ADMIN to list interfaces.checked 8 Oct 2001
- Packet reconstruction
- It reconstructs network data across layers and is designed to handle fragmentation, missing data, and encapsulation.checked 8 Oct 2001
- Parallelism
- The analyzer supports worker threads, while its documented default concurrency is one thread.checked 7 Oct 2001
- Plugin limitation
- Plugins are embedded in the resulting library, and dynamic libraries are not supported.checked 8 Oct 2001
- Plugins
- Plugins can process data at network layers and respond to flow creation and destruction events.checked 8 Oct 2001
- Purpose
- PAL is a Rust framework and toolset for analyzing Pcap files.checked 8 Oct 2001
- Release availability
- The GitHub Releases page says there are no releases for the repository.checked 8 Oct 2001
- Tools
- The project includes a main analyzer executable, libraries for analysis and file manipulation, a Pcap rewrite tool, and a debugging analyzer.checked 8 Oct 2001
Where it runs
- Linux dependency example
- The live-capture instructions show installing libpcap-dev with apt-get.checked 8 Oct 2001
The company
- Maker
- The GitHub organization describes rusticata as a safe parsers community.checked 8 Oct 2001
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