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Bug 680539

Summary: dnsmasq supports enable-dbus, but selinux says no
Product: Red Hat Enterprise Linux 6 Reporter: Alex Williamson <alex.williamson>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED ERRATA QA Contact: Milos Malik <mmalik>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.2CC: dwalsh, mmalik
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: selinux-policy-3.7.19-74.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-05-19 11:57:54 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Alex Williamson 2011-02-25 20:31:00 UTC 
Description of problem:

/etc/init.d/dnsmasq.conf:
enable-dbus

$ service dnsmasq start
Starting dnsmasq: 
dnsmasq: DBus error: Connection ":1.83" is not allowed to own the service "uk.org.thekelleys.dnsmasq" due to SELinux policy
                                                           [FAILED]

Version-Release number of selected component (if applicable):
dnsmasq-2.48-4.el6.x86_64
libselinux-2.0.94-3.el6.x86_64
libselinux-devel-2.0.94-3.el6.x86_64
selinux-policy-3.7.19-71.el6.noarch
selinux-policy-targeted-3.7.19-71.el6.noarch
libselinux-python-2.0.94-3.el6.x86_64
libselinux-utils-2.0.94-3.el6.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Try to use enable-dbus option in dnsmasq
2.
3.
  
Actual results:
denied

Expected results:
supported

Additional info:
Comment 2 Daniel Walsh 2011-02-25 20:45:05 UTC 
Please attach the AVC messages you are seeing

ausearch -m avc -ts recent
Comment 3 Alex Williamson 2011-02-25 21:06:50 UTC 
ausearch just tells me:

# ausearch -m avc -ts recent
<no matches>

But here's what comes up in /var/log/audit/audit.log:

type=USER_AVC msg=audit(1298667909.962:1150): user pid=2153 uid=81 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { acquire_svc } for service=uk.org.thekelleys.dnsmasq spid=20227 scontext=unconfined_u:system_r:dnsmasq_t:s0 tcontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 tclass=dbus : exe="/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'
Comment 4 Daniel Walsh 2011-02-25 21:24:25 UTC 
Miroslav can you add:
	
dbus_connect_system_bus(dnsmasq_t)



Can dnsmasq be autostarted by dbus?
Comment 5 Alex Williamson 2011-02-28 13:43:37 UTC 
(In reply to comment #4)
> Can dnsmasq be autostarted by dbus?

I have no idea.  I'm just trying to run a local dns caching/multiplexing server, starting via normal init scripts and using dbus to set and clear servers.  I suppose it's possible to launch via dbus, but I've never tried it.
Comment 6 Daniel Walsh 2011-02-28 18:16:23 UTC 
Ok Miroslav lets just add the connect call.
Comment 8 Miroslav Grepl 2011-03-01 14:06:52 UTC 
Fixed in selinux-policy-3.7.19-74.el6
Comment 11 errata-xmlrpc 2011-05-19 11:57:54 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0526.html