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eec615eddb
Currently, `snownet` tries to be very clever in how it roams connections. This is/was necessary because we associated DNS-specific state with a connection. More specifically, the assigned proxy IPs for a DNS resource are stored as part of a connection with the gateway. As a result, DNS resources would always break if the underlying connection in `snownet` failed. This is quite error prone and means, `snownet` must be very careful to never-ever fail a connection erroneously. With #5049, we no longer store any important state with a connection and thus, can implement roaming in much simpler way: Drop all connections and let the incoming packets create new ones. This is much more robust as we don't have to "patch" existing state in `snownet` as part of roaming. We test this new functionality by adding a `RoamClient` transition to `tunnel_test`. This ensures roaming works in a lot of scenarios, including relayed and non-relayed situations as well as roaming between either of them. As a result, we can delete several of the more specific test cases of `snownet`. Depends-On: #5049. Replaces: #5060. Resolves: #5080.
Rust development guide
Firezone uses Rust for all data plane components. This directory contains the Linux and Windows clients, and low-level networking implementations related to STUN/TURN.
We target the last stable release of Rust using rust-toolchain.toml.
If you are using rustup, that is automatically handled for you.
Otherwise, ensure you have the latest stable version of Rust installed.
Reading Client logs
The Client logs are written as JSONL for machine-readability.
To make them more human-friendly, pipe them through jq like this:
cd path/to/logs # e.g. `$HOME/.cache/dev.firezone.client/data/logs` on Linux
cat *.log | jq -r '"\(.time) \(.severity) \(.message)"'
Resulting in, e.g.
2024-04-01T18:25:47.237661392Z INFO started log
2024-04-01T18:25:47.238193266Z INFO GIT_VERSION = 1.0.0-pre.11-35-gcc0d43531
2024-04-01T18:25:48.295243016Z INFO No token / actor_name on disk, starting in signed-out state
2024-04-01T18:25:48.295360641Z INFO null