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Add documentation for the seclabel XML element

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The domain XML documentation is missing information about the
<seclabel> element used by security drivers

* formatdomain.html.in: Document <seclabel>
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Daniel P. Berrange 2011-06-27 12:31:36 +01:00
parent 6321fd9798
commit 6bcd732ead
1 changed files with 76 additions and 0 deletions
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@ -2614,6 +2614,82 @@ qemu-kvm -net nic,model=? /dev/null
</dd>
</dl>
<h3><a name="seclabel">Security label</a></h3>
<p>
The <code>seclabel</code> element allows control over the
operation of the security drivers. There are two basic
modes of operation, dynamic where libvirt automatically
generates a unique security label, or static where the
application/administrator chooses the labels. With dynamic
label generation, libvirt will always automatically
relabel any resources associated with the virtual machine.
With static label assignment, by default, the administrator
or application must ensure labels are set correctly on any
resources, however, automatic relabeling can be enabled
if desired
</p>
<p>
Valid input XML configurations for the security label
are:
</p>
<pre>
&lt;seclabel type='dynamic' model='selinux'/&gt;
&lt;seclabel type='dynamic' model='selinux'&gt;
&lt;baselabel&gt;system_u:system_r:my_svirt_t:s0&lt;/baselabel&gt;
&lt;/seclabel&gt;
&lt;seclabel type='static' model='selinux' relabel='no'&gt;
&lt;label&gt;system_u:system_r:svirt_t:s0:c392,c662&lt;/label&gt;
&lt;/seclabel&gt;
&lt;seclabel type='static' model='selinux' relabel='yes'&gt;
&lt;label&gt;system_u:system_r:svirt_t:s0:c392,c662&lt;/label&gt;
&lt;/seclabel&gt;
</pre>
<p>
When viewing the XML for a running guest with automatic
resource relabeling active, an additional XML element,
<code>imagelabel</code>, will be included. This is an
output-only element, so will be ignored in user supplied
XML documents
</p>
<dl>
<dt><code>type</code></dt>
<dd>Either <code>static</code> or <code>dynamic</code> to determine
whether libvirt automatically generates a unique security label
or not.
</dd>
<dt><code>model</code></dt>
<dd>A valid security model name, matching the currently
activated security model
</dd>
<dt><code>relabel</code></dt>
<dd>Either <code>yes</code> or <code>no</code>. This must always
be <code>yes</code> if dynamic label assignment is used. With
static label assignment it will default to <code>no</code>.
</dd>
<dt><code>label</code></dt>
<dd>If static labelling is used, this must specify the full
security label to assign to the virtual domain. The format
of the content depends on the security driver in use
</dd>
<dt><code>baselabel</code></dt>
<dd>If dynamic labelling is used, this can optionally be
used to specify the base security label. The format
of the content depends on the security driver in use
</dd>
<dt><code>imagelabel</code></dt>
<dd>This is an output only element, which shows the
security label used on resources associated with the virtual domain.
The format of the content depends on the security driver in use
</dd>
</dl>
<h2><a name="examples">Example configs</a></h2>
<p>