Files
firezone/rust
Thomas Eizinger bed94a1d21 feat(gui-client): add MDM config for Windows (#9203)
This PR adds the equivalent MDM configuration that we already have for
MacOS & iOS for the GUI client on Windows. These options are retrieved
from the Windows registry when the Client is started. Specifically, the
key for these is: `HKEY_CURRENT_USER\Software\Policies\Firezone`.

At moment, these cannot be configured or seen by the user. They are also
not "watched" for whilst the Client is running. If an admin pushes a new
MDM configuration, the Client will have to be restarted in order for
that new config to take effect.

Windows Policy templates are structured into two files:

- An `.admx` file that defines the structure of the policy, like the
kinds of values it has, where it is stored, which versions it is
supported on and which category it belongs to.
- An `.adml` file that defines defines all strings and presentation
logic, like the actual text of the policies and how the values are
presented in the GUI in e.g. Intune.

Internally, we differentiate between `MdmSettings` and
`AdvancedSettings`. The `MdmSettings` are cross-platform, however on
Linux, we always fallback to the defaults and therefore, they are always
"unset". Eventually, it might make sense to wrap both of these into a
more general `Settings` struct that acts as as a proxy for the two.

Related: #4505
2025-05-27 01:33:51 +00:00
..
2023-05-10 07:58:32 -07:00

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

Benchmarking on Linux

The recommended way for benchmarking any of the Rust components is Linux' perf utility. For example, to attach to a running application, do:

  1. Ensure the binary you are profiling is compiled with the release profile.
  2. sudo perf record -g --freq 10000 --pid $(pgrep <your-binary>).
  3. Run the speed test or whatever load-inducing task you want to measure.
  4. sudo perf script > profile.perf
  5. Open profiler.firefox.com and load profile.perf

Instead of attaching to a process with --pid, you can also specify the path to executable directly. That is useful if you want to capture perf data for a test or a micro-benchmark.