mirror of https://github.com/outbackdingo/firezone.git synced 2026-01-27 10:18:54 +00:00

Files

Reactor Scram 9bc60dc618 refactor(rust/gui-client): close callbacks when closing connlib (#6590 )

Closes #6576

This recreates the callback channel on every connect / disconnect cycle,
to prevent this sequence:

1. Start connlib
2. Fail in `make_tun`
3. Spend several seconds doing platform-specific things
4. Stop connlib (since `make_tun` failed)
5. Come back to the main loop to find a bunch of queued-up callbacks
even though connlib is supposed to be stopped.


Instead we get:

5\. Come back to the main loop and we've dropped the callback receiver,
so any callbacks that connlib sent while we were busy are either dropped
or not even sent.

2024-09-04 19:20:45 +00:00

docs

refactor(linux-client): replace client-tunnel with headless-client which is the same thing (#4516 )

2024-04-10 22:01:55 +00:00

src

refactor(rust/gui-client): close callbacks when closing connlib (#6590 )

2024-09-04 19:20:45 +00:00

Cargo.toml

chore(rust/gui-client): log the IPC message variant if the service can't handle it (#6571 )

2024-09-03 19:38:57 +00:00

README.md

refactor(headless-client): remove "linux-client" alias (#4933 )

2024-05-10 15:43:02 +00:00

README.md

headless-client

This crate acts as the CLI / headless Client, and the privileged tunnel service for the GUI Client, for both Linux and Windows.

It is built as:

headless-client to act as the Linux / Windows headless Client
firezone-headless-client to act as the Linux tunnel service, Windows headless Client, or Windows tunnel service

In general, the brand name should be part of the file name, but the OS name should not be.

Running

To run the headless 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 /etc/dev.firezone.client/token is only readable by root (i.e. chmod 400)
Ensure /etc/dev.firezone.client/token contains the Service account token. The Client needs this before it can start
Set FIREZONE_ID to 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_DIR to a suitable directory for writing logs

export LOG_DIR=/tmp/firezone-logs
mkdir $LOG_DIR

Now, you can start the client with:

./firezone-headless-client standalone

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-headless-client

Building

Assuming you have Rust installed, you can build the headless Client with:

cargo build --release -p firezone-headless-client

The binary will be in target/release/firezone-headless-client

The release 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 -p headless-client --target x86_64-unknown-linux-musl

Files

/etc/dev.firezone.client/token - The service account token, provided by the human administrator. Must be owned by root and have 600 permissions (r/w by owner, nobody else can read) If present, the tunnel will ignore any GUI Client and run as a headless Client. If absent, the tunnel will wait for commands from a GUI Client
/usr/bin/firezone-headless-client - The tunnel binary. This must run as root so it can modify the system's DNS settings. If DNS is not needed, it only needs CAP_NET_ADMIN.
/usr/lib/systemd/system/firezone-headless-client.service - A systemd service unit, installed by the deb package.
/var/lib/dev.firezone.client/config/firezone-id - The device ID, unique across an organization. The tunnel will generate this if it's not present.