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a0b2ea4073
In case a configured DNS server is also a CIDR resource, DNS queries will be routed through the tunnel to the gateway. For this to work correctly, the destination of the request and the source of the response need to be mangled back to the originally configured DNS server. Currently, this mangling happens in the connection-specific `GatewayOnClient` state. More specifically, the state that we need to track are the IDs of the DNS queries that we actually mangled. This state isn't connection-specific and can thus be moved out of `GatewayOnClient` into `ClientState`. Removing this state is important because we will soon (#5080) implement roaming the client by simply dropping all connections and establishing new connections as the packets are flowing in. For this, we must store as little state as possible associated with each connection. Resolves: #5079.
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