SSIA
The current "grandfathered" filter format behaves counter-intuitively.
Let me describe it based on my experiments:
1. there is a "hard default" that disables all devices (aka
-1,-1,-1,-1,0), it must be always overwritten if you wish to
auto-share anything. This is not advertised anywhere
2. there is a "soft default" that enables everything but HID
devices (aka 3,-1,-1,-1,0|-1,-1,-1,-1,1)
3. when user specifies a custom filter string, it
* replaces string from #2
* is based on top of #1
All combined together cause unexpected behaviours like the one described
in https://bugzilla.redhat.com/show_bug.cgi?id=823541 .
The most straightforward fix seems to get rid of "soft default" #2 and
use its value in "hard default" #1. That way, when user specifies
--spice-usbredir-filter="11,-1,-1,-1,0", the effective filter string
will be what user will expect:
"3,-1,-1,-1,0|11,-1,-1,-1,0|-1,-1,-1,-1,1"
instead of current behaviour where such string will become
"11,-1,-1,-1,0|-1,-1,-1,-1,0", effectively block-all "-1,-1,-1,-1,0"
Hans, do you think this is doable in a short time frame? If it is not
done this way soon, people will constantly ask about that...
David
--
David Jaša, RHCE
SPICE QE based in Brno
GPG Key: 22C33E24
Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24
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