HPLIP

HPLIP 3.18.7 installer issue for Digital Signature

Bug #1794842 reported by Aaron Bohannon
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HPLIP
In Progress
Undecided
Unassigned

Bug Description

We tried to install the 3.18.7 printer driver package and the install would not complete. We then decided to research why and found that may other engineers/customers are having the same problem. See URL below.
  The problem if we proceed, what happens if we finally install printer driver and other printers stop working? We then have to revert back to the older printer version. The bottom line, there is no good work around.

https://bbs.archlinux.org/viewtopic.php?id=239363

We found a difference in Linux between a plugin and print driver and the plugin could “possible” resolve the issue. We have not found the exact plugin but wanted to ask if you have the details. The checking writing/signature printer we have documented is HP LaserJet Enterprise M607.

Aaron Bohannon (abohannon90)
information type: Private Security → Public
Revision history for this message
srinivas (srinivas5) wrote :

Hi,

Arch linux distro is not supported by the HPLIP driver.
We have added CDS feature as part of HPLIP 3.18.7 version. This feature changes are incompatible with Arch linux distro.
So kindly install supported distro's for the HPLIP 3.18.7 driver or use HPLIP 3.18.6 driver in Arch linux which doesnot have CDS feature changes.

Thanks,
Srinivas Teja.

Changed in hplip:
status: New → In Progress
Revision history for this message
brian_p (claremont102) wrote :

> We have added CDS feature as part of HPLIP 3.18.7 version.

What does "CDS" stand for and what is it intended to do?

--
Brian.

Revision history for this message
Aaron Bohannon (abohannon90) wrote :

I noticed that there is a new release labeled 3.18.9. Does this have the CDS feature included in it?

Revision history for this message
brian_p (claremont102) wrote :

> What does "CDS" stand for and what is it intended to do?

I thought that was a really easy question for someone to answer; maybe someone at HP? :)

--
Brian.

Revision history for this message
Monzo Remb (monzr) wrote :

> > What does "CDS" stand for and what is it intended to do?
>
> I thought that was a really easy question for someone to answer; maybe someone at HP?

One thing related to printing that matches the acronym is the "Counterfeit Deterrence System". I wouldn't be surprised if this is the reason for the closed source blob without real information.

https://en.wikipedia.org/wiki/Central_Bank_Counterfeit_Deterrence_Group

Revision history for this message
brian_p (claremont102) wrote :

The only place I can find any mention of "cds" is in installer/text_install.py:

https://fossies.org/linux/hplip/installer/text_install.py

 if core.distro_name.lower() == 'fedora' and core.distro_version < '28':
 #print("SELinux enabling the 'cups_execmem' boolean ")
 cds_cmd = 'su -c "setsebool -P cups_execmem 1"

setsebool is an selinux command, so cds_cmd just looks like a way to ensure problems for printing on Fedora are minimized. Perhaps cds is "core distro selinux"?

--
Brian.

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