RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1125342 - Support remove_known_ca dbus call
Summary: Support remove_known_ca dbus call
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: certmonger
Version: 6.6
Hardware: Unspecified
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Nalin Dahyabhai
QA Contact: Kaleem
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-07-31 15:31 UTC by Keenan Brock
Modified: 2015-04-07 09:25 UTC (History)
3 users (show)

Fixed In Version: certmonger-0.75.9-1.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-10-14 07:12:49 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2014:1512 0 normal SHIPPED_LIVE certmonger bug fix and enhancement update 2014-10-14 01:22:25 UTC

Description Keenan Brock 2014-07-31 15:31:54 UTC 
Description of problem:

When I issue a remove_known_ca over dbus. certmonger throws an error.

Version-Release number of selected component (if applicable):

0.75.8-1

How reproducible:

Always

Steps to Reproduce:

First Register a helper

dbus-send --print-reply --system --dest=org.fedorahosted.certmonger \
    /org/fedorahosted/certmonger org.fedorahosted.certmonger.add_known_ca \
    string:sneakernet string:/usr/libexec/certmonger/sneakernet

Unregister that helper (bug is in here)

caname=`dbus-send --print-reply=literal --system \
  --dest=org.fedorahosted.certmonger \
  /org/fedorahosted/certmonger org.fedorahosted.certmonger.find_ca_by_nickname \
  string:sneakernet`

if [ -n "${caname}" ] ; then
  echo "oops didnt register the helper yet"
else
  # throws error:
  dbus-send --print-reply --system --dest=org.fedorahosted.certmonger \
  /org/fedorahosted/certmonger org.fedorahosted.certmonger.remove_known_ca \
  "objpath:${caname}"
fi

Actual results:

Error org.freedesktop.DBus.Error.Disconnected: Connection was disconnected
before a reply was received

Expected results:

true
Comment 2 Kaleem 2014-08-04 07:47:25 UTC 
Still observing the error message with latest build.

[root@rhel66-master ~]# rpm -q certmonger
certmonger-0.75.9-1.el6.x86_64
[root@rhel66-master ~]# 

[root@rhel66-master certmonger]# dbus-send --print-reply --system --dest=org.fedorahosted.certmonger     /org/fedorahosted/certmonger org.fedorahosted.certmonger.add_known_ca     string:sample-helper.rb string:/usr/libexec/certmonger/sample-helper.rb
method return sender=:1.13 -> dest=:1.14 reply_serial=2
   boolean true
   object path "/org/fedorahosted/certmonger/cas/CA8"
[root@rhel66-master certmonger]#

[root@rhel66-master certmonger]# caname=`dbus-send --print-reply=literal --system \
>   --dest=org.fedorahosted.certmonger \
>   /org/fedorahosted/certmonger org.fedorahosted.certmonger.find_ca_by_nickname \
>   string:sample-helper.rb`
[root@rhel66-master certmonger]# echo $caname
/org/fedorahosted/certmonger/cas/CA8
[root@rhel66-master certmonger]#

[root@rhel66-master certmonger]# dbus-send --print-reply --system --dest=org.fedorahosted.certmonger \
>   /org/fedorahosted/certmonger org.fedorahosted.certmonger.remove_known_ca \
>   "objpath:${caname}"
Error org.freedesktop.DBus.Error.Disconnected: Connection was disconnected before a reply was received
[root@rhel66-master certmonger]#
Comment 3 Nalin Dahyabhai 2014-08-04 15:16:51 UTC 
Hmm.  Keenan noted that the CA path you get back from the find_ca_by_nickname request has a literal tab at the start of it, which is stripped out by the command line if you don't quote it when passing it to the echo command.

An intermediate
  caname=`echo $caname`
should clear that out.

On my development box, attempting to pass in a path name with a tab as its first character triggers an assertion in dbus-send, but on EL6 it instead appears to cause the bus daemon to hang up on dbus-send.  On my boxes the certmonger daemon keeps running without issue either way.  Can you confirm that this is what you're seeing?
Comment 4 Kaleem 2014-08-05 07:16:57 UTC 
Yes workaround suggested for literal tab removal worked. Turning this to verified status.

certmonger version:
===================
[root@rhel66-master ~]# rpm -q certmonger
certmonger-0.75.9-1.el6.x86_64
[root@rhel66-master ~]# 

console output:
===============
[root@rhel66-master ~]# dbus-send --print-reply --system --dest=org.fedorahosted.certmonger     /org/fedorahosted/certmonger org.fedorahosted.certmonger.add_known_ca     string:sample-helper.rb string:/usr/libexec/certmonger/sample-helper.rb
method return sender=:1.72 -> dest=:1.73 reply_serial=2
   boolean true
   object path "/org/fedorahosted/certmonger/cas/CA6"
[root@rhel66-master ~]#  caname=`dbus-send --print-reply=literal --system --dest=org.fedorahosted.certmonger /org/fedorahosted/certmonger org.fedorahosted.certmonger.find_ca_by_nickname string:sample-helper.rb`
[root@rhel66-master ~]# echo $caname
/org/fedorahosted/certmonger/cas/CA6
[root@rhel66-master ~]# caname=`echo $caname`
[root@rhel66-master ~]# echo $caname
/org/fedorahosted/certmonger/cas/CA6
[root@rhel66-master ~]# dbus-send --print-reply --system --dest=org.fedorahosted.certmonger /org/fedorahosted/certmonger org.fedorahosted.certmonger.remove_known_ca "objpath:${caname}"
method return sender=:1.72 -> dest=:1.76 reply_serial=2
   boolean true
[root@rhel66-master ~]#
Comment 5 errata-xmlrpc 2014-10-14 07:12:49 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2014-1512.html
Note You need to log in before you can comment on or make changes to this bug.