Bug 841951

After disabling SElinux and reinstalling HPLIP fax ringing ok, however fails to sen properly with the error message:

-error: Pixels per line (width) must be 1728!

Any ideas?
Thanks.

Let's try to narrow down exactly what problems you are seeing.

Firstly, how have you installed HPLIP?  Did you install the Fedora packages (using Add/Remove Packages), or did you install it directly from HP?  What does 'rpm -q hplip' say?

Next, to determine whether SELinux is the problem, can you please re-enable it (setenforce 1) and try faxing again?  Do you see the original error message ("no communication with fax") or the new error message ("pixels per line ...")?

Now disable SELinux again (setenforce 0), and try to fax. Are there AVC messages logged in /var/log/audit/audit.log when you try faxing? What are they?

Hi Tim Waugh,

Thank you for your reply. I could not find the hplip-3.12.6 using Add/Remove Packages so I installed it directly from HP. HP OFFICEJET 4620 AIO printer requires the latest version. Please, let me know if 3.12.6 version is available via Add/Remove.

rpm -q hplip
package hplip is not installed

Meantime I remove and re-configure the print, fax using hp-toolbox. This time I used option 2) in hp-setup:
Network/Ethernet/Wireless network (direct connect or JetDirect)
Apparently option 3-Wireless/802.11 is not helpfull. Any way with this setup and SELinux in Permissive mode fax works fine. 

With SELinux in Enforcing mode the fax goes into the infinite loop:
hp-sendfax[5273]: debug: Waiting for fax...
hp-sendfax[5273]: debug: [dbus.String(u'hpfax:/net/Officejet_4620_series?zc=HPB4B52F1D2587'), dbus.String(u''), dbus.Int32(0), dbus.String(u'akavalov'), dbus.Int32(82), dbus.String(u''), dbus.Double(0.0), dbus.String(u'')]

I found the following messages in /var/log/audit/audit.log:
type=USER_AVC msg=audit(1343056666.598:15082): pid=0 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { send_msg } for msgtype=signal interface=com.hplip.StatusService member=Event dest=org.freedesktop.DBus spid=5703 tpid=4788 scontext=system_u:system_r:hplip_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=dbus  exe="/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'
type=USER_AVC msg=audit(1343056666.598:15083): pid=0 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { send_msg } for msgtype=signal interface=com.hplip.StatusService member=Event dest=org.freedesktop.DBus spid=5703 tpid=4788 scontext=system_u:system_r:hplip_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=dbus  exe="/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'


How i can fix this?
Thanks again

I think this is the Fedora version of bug #839608.

(In reply to comment #3)
> Please, let me know if 3.12.6 version is available via Add/Remove.

I've just created an hplip testing update,
but it will take a few days before you'll be able to update with:
yum --enablerepo=updates-testing update 'hplip*'

Miroslav lets add

userdom_dbus_send_all_users(hplip_t)

Tim,
So, i guess, extra policy rule in next selinux update should fix the problem?

Jiri,
I installed hplip-3.12.6 manually using the tar ball from HP's web site. Can i update it via 
yum --enablerepo=updates-testing update 'hplip*'
as you suggested?

Thanks all,
An

Well, you already have 3.12.6 so you don't need to update :)
But the answer is: no, this way you can update only packages from Fedora repositories, i.e. packages installed with yum, Add/Remove atc.

Jiri,

I would certainly prefer to have it installed correctly via Add/Remove. So i guess my option here is to uninstall it manually and then reinstall via

yum --enablerepo=updates-testing install hplip-3.12.6

correct? 

Thanks.

That's right.
I think there could be something like /usr/share/hplip/uninstall.py to uninstall the HP provided hplip. Then (after the 3.12.6 update populates the testing repository) you can install it with:
yum --enablerepo=updates-testing install hplip-gui

Yes, i do see it: 
/usr/bin/hp-uninstall -> ../share/hplip/uninstall.py

Thanks all for the guidance and advise.

(In reply to comment #7)
> Tim,
> So, i guess, extra policy rule in next selinux update should fix the problem?

Yes, I think it will fix at least one of the problems you're having.

(In reply to comment #6)
> Miroslav lets add
> 
> userdom_dbus_send_all_users(hplip_t)

Added to F16.

Also needed for all subsequent releases.

Yes. Add also to F17, rawhide.

selinux-policy-3.10.0-91.fc16 has been submitted as an update for Fedora 16.
https://admin.fedoraproject.org/updates/selinux-policy-3.10.0-91.fc16

Package selinux-policy-3.10.0-91.fc16:
* should fix your issue,
* was pushed to the Fedora 16 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.10.0-91.fc16'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2012-11411/selinux-policy-3.10.0-91.fc16
then log in and leave karma (feedback).

I want to confirm and summarize that the following resolved all faxing problems mentioned above:
1) su -
2) hp-uninstall
3) yum --enablerepo=updates-testing install hplip-gui
3) yum update --enablerepo=updates-testing selinux-policy-3.10.0-91.fc16

This is great! 
Thanks a lot.

selinux-policy-3.10.0-91.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.