mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-07-11 04:15:49 +00:00
05b9b8fda3
Define an <encryption> tag specifying volume encryption format and format-depenedent parameters (e.g. passphrase, cipher name, key length, key). Currently the only defined parameter is a reference to a "secret" (passphrase/key) managed using the virSecret* API. Only the qcow/qcow2 encryption format, and a "default" format used to let libvirt choose the format during volume creation, is currently supported. This patch does not add any users; the <encryption> tag is added in the following patches to both volumes (to support encrypted volume creation) and domains. * docs/*.html: Re-generate * docs/formatstorageencryption.html.in, docs/sitemap.html.in: Add page describing storage encryption data format * docs/schemas/Makefile.am, docs/schemas/storageencryption.rng: Add RNG schema for storage encryption format * po/POTFILES.in: Add src/storage_encryption_conf.c * src/libvirt_private.syms: Export virStorageEncryption* functions * src/storage_encryption_conf.h, src/storage_encryption_conf.c: Internal helper APIs for dealing with storage encryption format * libvirt.spec.in, mingw32-libvirt.spec.in: Add storageencryption.rng RNG schema
333 lines
15 KiB
HTML
333 lines
15 KiB
HTML
<?xml version="1.0" encoding="ISO-8859-1"?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<!--
|
|
This file is autogenerated from formatnetwork.html.in
|
|
Do not edit this file. Changes will be lost.
|
|
-->
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
|
|
<link rel="stylesheet" type="text/css" href="main.css" />
|
|
<link rel="SHORTCUT ICON" href="32favicon.png" />
|
|
<title>libvirt: Network XML format</title>
|
|
<meta name="description" content="libvirt, virtualization, virtualization API" />
|
|
</head>
|
|
<body>
|
|
<div id="header">
|
|
<div id="headerLogo"></div>
|
|
<div id="headerSearch">
|
|
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><div>
|
|
<input id="query" name="query" type="text" size="12" value="" />
|
|
<input id="submit" name="submit" type="submit" value="Search" />
|
|
</div></form>
|
|
</div>
|
|
</div>
|
|
<div id="body">
|
|
<div id="menu">
|
|
<ul class="l0"><li>
|
|
<div>
|
|
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Information for users, administrators and developers" class="active" href="docs.html">Documentation</a>
|
|
<ul class="l1"><li>
|
|
<div>
|
|
<a title="Information about deploying and using libvirt" class="inactive" href="deployment.html">Deployment</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Overview of the logical subsystems in the libvirt API" class="inactive" href="intro.html">Architecture</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Description of the XML formats used in libvirt" class="active" href="format.html">XML format</a>
|
|
<ul class="l2"><li>
|
|
<div>
|
|
<a title="The domain XML format" class="inactive" href="formatdomain.html">Domains</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<span class="active">Networks</span>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="The storage pool and volume XML format" class="inactive" href="formatstorage.html">Storage</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Storage volume encryption XML format" class="inactive" href="formatstorageencryption.html">Storage Encryption</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="The driver capabilities XML format" class="inactive" href="formatcaps.html">Capabilities</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="The host device XML format" class="inactive" href="formatnode.html">Node Devices</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="The secret XML format" class="inactive" href="formatsecret.html">Secrets</a>
|
|
</div>
|
|
</li></ul>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Hypervisor specific driver information" class="inactive" href="drivers.html">Drivers</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Bindings of the libvirt API for other languages" class="inactive" href="bindings.html">Language bindings</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Working on the internals of libvirt API, driver and daemon code" class="inactive" href="internals.html">Internals</a>
|
|
</div>
|
|
</li></ul>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
|
|
</div>
|
|
</li><li>
|
|
<div>
|
|
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
|
|
</div>
|
|
</li></ul>
|
|
</div>
|
|
<div id="content">
|
|
<h1>Network XML format</h1>
|
|
<ul><li>
|
|
<a href="#elements">Element and attribute overview</a>
|
|
<ul><li>
|
|
<a href="#elementsMetadata">General metadata</a>
|
|
</li><li>
|
|
<a href="#elementsConnect">Connectivity</a>
|
|
</li><li>
|
|
<a href="#elementsAddress">Addressing</a>
|
|
</li></ul>
|
|
</li><li>
|
|
<a href="#examples">Example configuration</a>
|
|
<ul><li>
|
|
<a href="#examplesNAT">NAT based network</a>
|
|
</li><li>
|
|
<a href="#examplesRoute">Routed network config</a>
|
|
</li><li>
|
|
<a href="#examplesPrivate">Isolated network config</a>
|
|
</li></ul>
|
|
</li></ul>
|
|
<p>
|
|
This page provides an introduction to the network XML format. For background
|
|
information on the concepts referred to here, consult the <a href="archnetwork.html">network driver architecture</a>
|
|
page.
|
|
</p>
|
|
<h2>
|
|
<a name="elements" id="elements">Element and attribute overview</a>
|
|
</h2>
|
|
<p>
|
|
The root element required for all virtual networks is
|
|
named <code>network</code> and has no attributes.
|
|
The network XML format is available <span class="since">since 0.3.0</span>
|
|
</p>
|
|
<h3>
|
|
<a name="elementsMetadata" id="elementsMetadata">General metadata</a>
|
|
</h3>
|
|
<p>
|
|
The first elements provide basic metadata about the virtual
|
|
network.
|
|
</p>
|
|
<pre>
|
|
<network>
|
|
<name>default</name>
|
|
<uuid>3e3fce45-4f53-4fa7-bb32-11f34168b82b</uuid>
|
|
...</pre>
|
|
<dl><dt><code>name</code></dt><dd>The content of the <code>name</code> element provides
|
|
a short name for the virtual network. This name should
|
|
consist only of alpha-numeric characters and is required
|
|
to be unique within the scope of a single host. It is
|
|
used to form the filename for storing the persistent
|
|
configuration file. <span class="since">Since 0.3.0</span></dd><dt><code>uuid</code></dt><dd>The content of the <code>uuid</code> element provides
|
|
a globally unique identifier for the virtual network.
|
|
The format must be RFC 4122 compliant, eg <code>3e3fce45-4f53-4fa7-bb32-11f34168b82b</code>.
|
|
If omitted when defining/creating a new network, a random
|
|
UUID is generated. <span class="since">Since 0.3.0</span></dd></dl>
|
|
<h3>
|
|
<a name="elementsConnect" id="elementsConnect">Connectivity</a>
|
|
</h3>
|
|
<p>
|
|
The next set of elements control how a virtual network is
|
|
provided connectivity to the physical LAN (if at all).
|
|
</p>
|
|
<pre>
|
|
...
|
|
<bridge name="virbr0" />
|
|
<forward mode="nat" dev="eth0"/>
|
|
...</pre>
|
|
<dl><dt><code>bridge</code></dt><dd>The <code>name</code> attribute on the <code>bridge</code> element
|
|
defines the name of a bridge device which will be used to construct
|
|
the virtual network. The virtual machines will be connected to this
|
|
bridge device allowing them to talk to each other. The bridge device
|
|
may also be connected to the LAN. It is recommended that bridge
|
|
device names started with the prefix <code>vir</code>, but the name
|
|
<code>virbr0</code> is reserved for the "default" virtual network.
|
|
This element should always be provided when defining a new network.
|
|
<span class="since">Since 0.3.0</span>
|
|
</dd><dt><code>forward</code></dt><dd>Inclusion of the <code>forward</code> element indicates that
|
|
the virtual network is to be connected to the physical LAN. If
|
|
no attributes are set, NAT forwarding will be used for connectivity.
|
|
Firewall rules will allow forwarding to any other network device whether
|
|
ethernet, wireless, dialup, or VPN. If the <code>dev</code> attribute
|
|
is set, the firewall rules will restrict forwarding to the named
|
|
device only. If the <code>mode</code> attribute is set to <code>route</code>
|
|
then the traffic will not have NAT applied. This presumes that the
|
|
local LAN router has suitable routing table entries to return traffic
|
|
to this host. <span class="since">Since 0.3.0; 'mode' attribute since
|
|
0.4.2</span></dd></dl>
|
|
<h3>
|
|
<a name="elementsAddress" id="elementsAddress">Addressing</a>
|
|
</h3>
|
|
<p>
|
|
The final set of elements define the IPv4 address range available,
|
|
and optionally enable DHCP sevices.
|
|
</p>
|
|
<pre>
|
|
...
|
|
<ip address="192.168.122.1" netmask="255.255.255.0">
|
|
<dhcp>
|
|
<range start="192.168.122.100" end="192.168.122.254" />
|
|
<host mac="00:16:3e:77:e2:ed" name="foo.example.com" ip="192.168.122.10" />
|
|
<host mac="00:16:3e:3e:a9:1a" name="bar.example.com" ip="192.168.122.11" />
|
|
</dhcp>
|
|
</ip>
|
|
</network></pre>
|
|
<dl><dt><code>ip</code></dt><dd>The <code>address</code> attribute defines an IPv4 address in
|
|
dotted-decimal format, that will be configured on the bridge
|
|
device associated with the virtual network. To the guests this
|
|
address will be their default route. The <code>netmask</code>
|
|
attribute defines the significant bits of the network address,
|
|
again specified in dotted-decimal format. <span class="since">Since 0.3.0</span>
|
|
</dd><dt><code>dhcp</code></dt><dd>Immediately within the <code>ip</code> element there is an
|
|
optional <code>dhcp</code> element. The presence of this element
|
|
enables DHCP services on the virtual network. It will further
|
|
contain one or more <code>range</code> elements.
|
|
<span class="since">Since 0.3.0</span>
|
|
</dd><dt><code>range</code></dt><dd>The <code>start</code> and <code>end</code> attributes on the
|
|
<code>range</code> element specify the boundaries of a pool of
|
|
IPv4 addresses to be provided to DHCP clients. These two addresses
|
|
must lie within the scope of the network defined on the parent
|
|
<code>ip</code> element. <span class="since">Since 0.3.0</span>
|
|
</dd><dt><code>host</code></dt><dd>Within the <code>dhcp</code> element there may be zero or more
|
|
<code>host</code> elements; these specify hosts which will be given
|
|
names and predefined IP addresses by the built-in DHCP server. Any
|
|
such element must specify the MAC address of the host to be assigned
|
|
a given name (via the <code>mac</code> attribute), the IP to be
|
|
assigned to that host (via the <code>ip</code> attribute), and the
|
|
name to be given that host by the DHCP server (via the
|
|
<code>name</code> attribute). <span class="since">Since 0.4.5</span>
|
|
</dd></dl>
|
|
<h2>
|
|
<a name="examples" id="examples">Example configuration</a>
|
|
</h2>
|
|
<h3>
|
|
<a name="examplesNAT" id="examplesNAT">NAT based network</a>
|
|
</h3>
|
|
<p>
|
|
This example is the so called "default" virtual network. It is
|
|
provided and enabled out-of-the-box for all libvirt installations.
|
|
This is a configuration that allows guest OS to get outbound
|
|
connectivity regardless of whether the host uses ethernet, wireless,
|
|
dialup, or VPN networking without requiring any specific admin
|
|
configuration. In the absence of host networking, it at least allows
|
|
guests to talk directly to each other.
|
|
</p>
|
|
<pre>
|
|
<network>
|
|
<name>default</name>
|
|
<bridge name="virbr0" />
|
|
<forward mode="nat"/>
|
|
<ip address="192.168.122.1" netmask="255.255.255.0">
|
|
<dhcp>
|
|
<range start="192.168.122.2" end="192.168.122.254" />
|
|
</dhcp>
|
|
</ip>
|
|
</network></pre>
|
|
<h3>
|
|
<a name="examplesRoute" id="examplesRoute">Routed network config</a>
|
|
</h3>
|
|
<p>
|
|
This is a variant on the default network which routes traffic
|
|
from the virtual network to the LAN without applying any NAT.
|
|
It requires that the IP address range be pre-configured in the
|
|
routing tables of the router on the host network. This example
|
|
further specifies that guest traffic may only go out via the
|
|
<code>eth1</code> host network device.
|
|
</p>
|
|
<pre>
|
|
<network>
|
|
<name>local</name>
|
|
<bridge name="virbr1" />
|
|
<forward mode="route" dev="eth1"/>
|
|
<ip address="192.168.122.1" netmask="255.255.255.0">
|
|
<dhcp>
|
|
<range start="192.168.122.2" end="192.168.122.254" />
|
|
</dhcp>
|
|
</ip>
|
|
</network></pre>
|
|
<h3>
|
|
<a name="examplesPrivate" id="examplesPrivate">Isolated network config</a>
|
|
</h3>
|
|
<p>
|
|
This variant provides a completely isolated private network
|
|
for guests. The guests can talk to each other, and the host
|
|
OS, but cannot reach any other machines on the LAN, due to
|
|
the omission of the <code>forward</code> element in the XML
|
|
description.
|
|
</p>
|
|
<pre>
|
|
<network>
|
|
<name>private</name>
|
|
<bridge name="virbr2" />
|
|
<ip address="192.168.152.1" netmask="255.255.255.0">
|
|
<dhcp>
|
|
<range start="192.168.152.2" end="192.168.152.254" />
|
|
</dhcp>
|
|
</ip>
|
|
</network></pre>
|
|
</div>
|
|
</div>
|
|
<div id="footer">
|
|
<p id="sponsor">
|
|
Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
|
|
</div>
|
|
</body>
|
|
</html>
|