Description of problem:
permission denied when issuing permanent allowance rules. selinux blocks access silently.

Version-Release number of selected component (if applicable):
usbguard-0.7.6-6.fc31.x86_64
usbguard-selinux-0.7.6-6.fc31.noarch
selinux-policy-3.14.4-47.fc31.noarch

How reproducible:
always

Steps to Reproduce:
# usbguard allow-device -p 43        
IPC ERROR: request id=1: FileRuleSet saving: /etc/usbguard/rules.conf: Permission denied
# semodule -DB
# usbguard allow-device -p 43
IPC ERROR: request id=1: FileRuleSet saving: /etc/usbguard/rules.conf: Permission denied
# setenforce 0
# usbguard allow-device -p 43
# ausearch -m avc -ts recent 
----
time->Wed Feb 19 14:46:56 2020
type=AVC msg=audit(1582120016.357:350): avc:  denied  { write } for  pid=1255 comm="usbguard-daemon" name="rules.conf" dev="dm-1" ino=17282452 scontext=system_u:system_r:usbguard_t:s0 tcontext=unconfined_u:object_r:usbguard_conf_t:s0 tclass=file permissive=0
----
time->Wed Feb 19 14:47:18 2020
type=AVC msg=audit(1582120038.061:355): avc:  denied  { write } for  pid=1255 comm="usbguard-daemon" name="rules.conf" dev="dm-1" ino=17282452 scontext=system_u:system_r:usbguard_t:s0 tcontext=unconfined_u:object_r:usbguard_conf_t:s0 tclass=file permissive=1

# ausearch -m avc -ts recent -r | audit2allow -R

require {
        type usbguard_conf_t;
        type usbguard_t;
        class file write;
}

#============= usbguard_t ==============

#!!!! This avc can be allowed using the boolean 'usbguard_daemon_write_conf'
allow usbguard_t usbguard_conf_t:file write;

Actual results:
present selinux boolean is hidden behind dontaudit rule, no usbguard_selinux page found. It is troublesome to debug unless (usually global) permissive mode is used.

Expected results:
forbidden access is audited and/or user properly informed from usbguard side that such tunable exists.

Additional info:
filed against usbguard as I suspect the fault is on it's own sepolicy package.