Fast zero-copy packet creating and parsing module
Built around trying to minimize copying data by taking advantage of memoryviews for fast slicing and zero copy memory operations.
This library takes either a bytes or bytearray object and parses out various protocols in a similar fashion to the Rust library. The resulting packet objects can be inspected, or, in the case its backed by a bytearray, also written to. In this case, the backing memory is immediately updated.
Instead of mapping packet fields to attributes, I expose them instead with a collection-like API. This is my personal taste, as I don’t like how autogenerated attributes end up with akward names that can overlap with Python keywords.
Initial testing on my machine has shown that this library is about twice as fast at parsing packets, but I haven’t determined yet if this can be attributed to design differences, or if I’m just simply doing less.
This is one part of a slew of network inspecting code I’m releasing.
- rich BPF support and mini-language
- asyncio support for raw sockets and packet capturing
- asyncio based dhcp server and client library
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