pipewire/spa/plugins/bluez5/README-MIDI.md

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BLE MIDI & SELinux

The SELinux configuration on Fedora 37 (as of 2022-11-10) does not permit access to the bluetoothd APIs needed for BLE MIDI.

As a workaround, hopefully to be not necessary in future, you can permit such access by creating a file blemidi.te with contents:

policy_module(blemidi, 1.0);

require {
    type system_dbusd_t;
    type unconfined_t;
    type unconfined_service_t;
    type bluetooth_t;
}

allow system_dbusd_t unconfined_service_t:unix_stream_socket { read write };
allow system_dbusd_t bluetooth_t:unix_stream_socket { read write };

Then having package selinux-policy-devel installed, running make -f /usr/share/selinux/devel/Makefile blemidi.pp, and finally to insert the rules via sudo semodule -i blemidi.pp.

The policy change can be removed by sudo semodule -r blemidi.