On 09/17/14 08:00, Andriy Gapon wrote:
Soliciting help.
-------- Forwarded Message --------
From my experience I think that cupsd executes backend tools with all uids and
gids set to cups and no supplementary groups. In the case of USB printers the
backends need to access /dev/usbctl and /dev/usb/foobar that corresponds to a
printer. That means that the access to those devices must be somehow granted to
cups:cups.
How do people solve this? What kind of permissions / configuration do you use?
P.S.
Maybe I over-generalized the issue to all USB printers. My personal experience
is with an HP printer handled by hplip / hplip-plugin.
Hi,
The /usr/ports/print/cups-base should be updated.
The pkg-message should not say that:
# FreeBSD 8.x
add path 'usb*' mode 0770 group cups
add path 'ugen*' mode 0660 group cups
add path 'usb/0.2.*' mode 0660 group cups
Is needed. This is wrong.
Instead make cups-base install the attached devd configuration file in
/usr/local/etc/devd/ which does the needed chown for printers only.
--HPS
# Generic USB printer devices
notify 100 {
match "system" "USB";
match "subsystem" "INTERFACE";
match "type" "ATTACH";
match "intclass" "0x07";
match "intsubclass" "0x01";
match "intprotocol" "(0x01|0x02|0x03)";
action "chown cups:cups /dev/$cdev";
};
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