On 08/31/2016 07:17 AM, fsmithred wrote:
> On 08/31/2016 05:03 AM, Ralph Ronnquist wrote:
>> Ralph Ronnquist wrote on 31/08/16 15:54:
>>> Ralph Ronnquist wrote on 31/08/16 10:21:
>>>>
>>>>
>>>> fsmithred wrote on 31/08/16 07:54:
>>>>> ...
>>>>> I got it to work. Here's the action file and the helper script. The
>>>>> helper
>>>>> script is a modified permissions.sh. I added a test for $VDEV_MAJOR and
>>>>> $VDEV_MINOR to trigger setfacl. Scanner now works on my installation.
>>>>> ...
>>>>
>>>> Great. I'll roll it into the package.
>>>
>>> On looking at this, I saw the action file was rather different from
>>> other action files, and (as I'm slowly picking on this up) I'd like to
>>> check with you whether the following action file might do the work:
>>>
>>> /etc/vdev/actions/scanner.act
>>> [vdev-action]
>>> event=add
>>> path=^bus/usb/*/[001-999]
>>> OS_SUBSYSTEM=usb
>>> VAR_PERMISSIONS_OWNER=root
>>> VAR_PERMISSIONS_GROUP=scanner
>>> VAR_PERMISSIONS_MODE=0664
>>> helper=permissions.sh
>>> daemonlet=true
>>>
>>> Afaict, the acls should follow the file permissions and you shouldn't
>>> need to set those.
>>>
>>> Ralph.
>>
>> oops, I seem to have lost the "OS_TYPE=255/255/255" line. Probably important.
>>
>> Ralph.
>
>
> That didn't work, even with the OS_TYPE=255/255/255. The file permissions
> get set, but not the acl. I played with some variations, and the following
> works, but only if I add the lines for setfacl to permissions.sh. (i.e.
> test for major and minor number then run setfacl)
>
> /etc/vdev/actions/scanner.act
> [vdev-action]
> event=add
> path=^bus/usb/*/[001-999]
> OS_SUBSYSTEM=usb
> OS_TYPE=255/255/255
> VAR_PERMISSIONS_OWNER=root
> VAR_PERMISSIONS_GROUP=scanner
> VAR_PERMISSIONS_MODE=0664
> helper=permissions.sh
> if_exists=run
>
>
> One other problem with all the ways I've tried is that if I unplug the
> scanner and plug it in again, the acl does not get set. A reboot is
> required for that.
>
> -fsr
>
>

Our discussion in irc was productive. The following works with the stock
permissions.sh (without the lines for setfacl). The acl does not get set,
but the scanner works. And if I unplug and re-plug the usb cable, the
scanner gets the next device number, and it works!

cat /etc/vdev/actions/scanner.act

[vdev-action]
event=add
path=^bus/usb/*/[001-999]
OS_SUBSYSTEM=usb
OS_TYPE=255/255/255
VAR_PERMISSIONS_OWNER=root
VAR_PERMISSIONS_GROUP=scanner
VAR_PERMISSIONS_MODE=0664
helper=permissions.sh
if_exists=run
daemonlet=true

-fsr