arti/crates/tor-protover
Nick Mathewson 9ef115a7fb Patchlevel bumps for crates whose dependencies just changed.
These crates had no changes until just a moment ago. But since
we updated the versions on some of their dependents, they have now
changed themselves.  Thus they get patchlevel bumps.

```
tor-rtmock
tor-protover
tor-socksproto
tor-consdiff
tor-chanmgr
tor-dirclient
tor-hsservice
```
2023-03-31 08:30:14 -04:00
..
src
Cargo.toml
README.md

README.md

tor-protover

Implementation of Tor's "subprotocol versioning" feature.

Overview

The Tor system is built out of numerous "subprotocols" that are versioned more or less independently. The tor-protover crate implements parsing and handling for these subprotocol versions, so that different Tor instances know which parts of the protocol they support.

Subprotocol versions are also used to determine which versions of the protocol are required to connect to the network (or just recommended).

For more details, see tor-spec.txt section 9.

This crate is part of Arti, a project to implement Tor in Rust. It's unlikely to be of general interest unless you are writing a Tor implementation, or a program that needs to examine fine-grained details of the Tor network.

Design notes

We're giving tor-protover its own crate within arti because it needs to be used to multiple higher level crates that do not themselves depend on one another. (For example, [tor-proto] needs to know which variant of a subprotocol can be used with a given relay, whereas [tor-netdoc] needs to parse lists of subprotocol versions from directory documents. Eventually, [arti-client] will need to check its own list of supported protocols against the required list in the consensus.)

License: MIT OR Apache-2.0