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Bug 1333248 - Libvirt rejects object name starting with '.'
Summary: Libvirt rejects object name starting with '.'
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libvirt
Version: 7.3
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Ján Tomko
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-05-05 05:54 UTC by Fangge Jin
Modified: 2016-11-03 18:44 UTC (History)
6 users (show)

Fixed In Version: libvirt-2.0.0-1.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-11-03 18:44:42 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:2577 0 normal SHIPPED_LIVE Moderate: libvirt security, bug fix, and enhancement update 2016-11-03 12:07:06 UTC

Description Fangge Jin 2016-05-05 05:54:59 UTC 
Description of problem:
Libvirt should reject domain name starting with '.', because file name starting with '.' is invisible in linux, the domain will disappear after restarting libvirtd.

Version-Release number of selected component:
libvirt-1.3.4-1.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
0.
# /usr/bin/virsh define /tmp/aaa.xml
Domain .aaa defined from /tmp/aaa.xml

1.
# /usr/bin/virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     .aaa                           shut off

2.
# ls /etc/libvirt/qemu/.aaa.xml
/etc/libvirt/qemu/.aaa.xml

3.
# systemctl restart libvirtd

# /usr/bin/virsh list --all
 Id    Name                           State
----------------------------------------------------


Actual results:
As step3, domain disappeared after restarting libvirtd

Expected results:
Libvirt reject object name starting with '.'.


Additional info:
The issue also exists with network/pool name
Comment 2 Ján Tomko 2016-06-21 16:06:05 UTC 
Upstream patches:
https://www.redhat.com/archives/libvir-list/2016-June/msg01388.html
Comment 3 Ján Tomko 2016-06-23 20:46:07 UTC 
Pushed upstream as:
commit 5217fe3db439e3dd66e2d657d2c0bebe0443ed22
Author:     Ján Tomko <jtomko>
CommitDate: 2016-06-23 21:58:38 +0200

    Allow configs to start with a dot
    
    This fixes the disappearance of domains and networks starting with a
    dot.
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1333248

git describe: v1.3.5-413-g5217fe3
Comment 5 zhe peng 2016-07-15 08:27:08 UTC 
I can reproduce this.
verify with build:
libvirt-2.0.0-1.el7.x86_64

step:
 1. define a guest which name staring with a dot 
# virsh define q35.xml 
Domain .q35 defined from q35.xml
# virsh list --all
 Id    Name                           State
----------------------------------------------------
 3     rhel7                          running
 -     .q35                           shut off

# systemctl restart libvirtd
[root@intel-e5530-8-1 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 3     rhel7                          running
 -     .q35                           shut off

test pool:
#virsh pool-define pool.xml 
Pool .test defined from pool.xml

# systemctl restart libvirtd
# virsh pool-list --all
 Name                 State      Autostart 
-------------------------------------------
 .test                active     no        
 default              active     yes    

test network:
# virsh net-define net.xml 
Network ..test defined from net.xml
# virsh net-list --all
 Name                 State      Autostart     Persistent
----------------------------------------------------------
 ..test               inactive   no            yes
 default              active     yes           yes

# systemctl restart libvirtd
# virsh net-list --all
 Name                 State      Autostart     Persistent
----------------------------------------------------------
 ..test               inactive   no            yes
 default              active     yes           yes

worked as expect, move to verified.
Comment 7 errata-xmlrpc 2016-11-03 18:44:42 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.

https://rhn.redhat.com/errata/RHSA-2016-2577.html
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