mirror of
https://github.com/outbackdingo/firezone.git
synced 2026-01-27 18:18:55 +00:00
Currently, an error returned by `Tunnel::poll_next_event` is only logged. In other words, they are never fatal. This creates a tricky to understand relationship on what kind of errors should be returned from callbacks. Because connlib is used on multiple operating systems, it has no idea how fatal a particular error is. This PR removes all of these `Result` return values with the following consequences: - For Android, we now panic when a callback fails. This is a slight change in behaviour. I believe that previously, any exception thrown by a callback into Android was caught and returned as an error. Now, we panic because in the FFI layer, we don't have any information on how fatal the error is. For non-fatal errors, the Android app should simply not throw an exception. The panics will cause the connlib task to be shut down which triggers an `on_disconnect`. - For Swift, there is no behaviour change. The FFI layer already did not support `Result`s for those callbacks. I don't know how exceptions from Swift are translated across the FFI layer but there is no change to what we had before. - For the Tauri client: - I chose to log errors on ERROR level and continue gracefully for the DNS resolvers. - We panic in case the controller channel is full / closed. That should really never happen in practice though unless we are currently shutting down the app. Resolves: #4064.
linux-client
This crate houses the Firezone linux client.
Building
Assuming you have Rust installed, you can build the Linux client from a Linux host with:
cargo build --release --bin firezone-linux-client
You should then find a binary in target/release/firezone-linux-client.
The releases on Github are built with musl. To build this way, use:
rustup target add x86_64-unknown-linux-musl
sudo apt-get install musl-tools
cargo build --release --bin firezone-linux-client --target x86_64-unknown-linux-musl
Running
To run the Linux client:
- Generate a new Service account token from the "Actors -> Service Accounts" section of the admin portal and save it in your secrets manager. The Firezone Linux client requires a service account at this time.
- Ensure the
FIREZONE_TOKEN=<service_account_token>environment variable is set securely in your client's shell environment. The client requires this variable at startup. - Set
FIREZONE_IDto a unique string to identify this client in the portal, e.g.export FIREZONE_ID=$(uuidgen). The client requires this variable at startup. - Set
LOG_DIRto a suitable directory for writing logsexport LOG_DIR=/tmp/firezone-logs mkdir $LOG_DIR - Now, you can start the client with:
./firezone-linux-client
If you're running as an unprivileged user, you'll need the CAP_NET_ADMIN
capability to open /dev/net/tun. You can add this to the client binary with:
sudo setcap 'cap_net_admin+eip' /path/to/firezone-linux-client