Gabi 5b0aaa6f81 fix(connlib): protect all sockets from routing loops (#5797) ...

Currently, only connlib's UDP sockets for sending and receiving STUN &
WireGuard traffic are protected from routing loops. This is was done via
the `Sockets::with_protect` function. Connlib has additional sockets
though:

- A TCP socket to the portal.
- UDP & TCP sockets for DNS resolution via hickory.

Both of these can incur routing loops on certain platforms which becomes
evident as we try to implement #2667.

To fix this, we generalise the idea of "protecting" a socket via a
`SocketFactory` abstraction. By allowing the different platforms to
provide a specialised `SocketFactory`, anything Linux-based can give
special treatment to the socket before handing it to connlib.

As an additional benefit, this allows us to remove the `Sockets`
abstraction from connlib's API again because we can now initialise it
internally via the provided `SocketFactory` for UDP sockets.

---------

Signed-off-by: Gabi <gabrielalejandro7@gmail.com>
Co-authored-by: Thomas Eizinger <thomas@eizinger.io>

2024-07-16 00:40:05 +00:00

..

tun_device_manager

fix(connlib): protect all sockets from routing loops (#5797)

2024-07-16 00:40:05 +00:00

lib.rs

fix(connlib): protect all sockets from routing loops (#5797)

2024-07-16 00:40:05 +00:00

tun_device_manager.rs

refactor(connlib): move TunDeviceManager into firezone-bin-shared (#5843)

2024-07-11 23:42:33 +00:00