First RelaxNG schema of qubes.xml

Schema is most likely incomplete.
This commit is contained in:
Wojciech Zygmunt Porczyk 2015-01-11 01:19:03 +01:00 committed by Wojtek Porczyk
parent 091ffa5444
commit 118edb6ac4
4 changed files with 364 additions and 1 deletions

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@ -3,6 +3,8 @@
import collections import collections
import unittest import unittest
import lxml.etree
import qubes.config import qubes.config
import qubes.events import qubes.events
@ -132,3 +134,44 @@ class QubesTestCase(unittest.TestCase):
self.fail('event {!r} did fire on {!r}'.format(event, emitter)) self.fail('event {!r} did fire on {!r}'.format(event, emitter))
return return
def assertXMLIsValid(self, xml, file=None, schema=None):
'''Check whether given XML fulfills Relax NG schema.
Schema can be given in a couple of ways:
- As separate file. This is most common, and also the only way to
handle file inclusion. Call with file name as second argument.
- As string containing actual schema. Put that string in *schema*
keyword argument.
:param lxml.etree._Element xml: XML element instance to check
:param str file: filename of Relax NG schema
:param str schema: optional explicit schema string
'''
if schema is not None and file is None:
relaxng = schema
if isinstance(relaxng, str):
relaxng = lxml.etree.XML(relaxng)
if isinstance(relaxng, lxml.etree._Element):
relaxng = lxml.etree.RelaxNG(relaxng)
elif file is not None and schema is None:
relaxng = lxml.etree.RelaxNG(file=file)
else:
raise TypeError("There should be excactly one of 'file' and "
"'schema' arguments specified.")
# We have to be extra careful here in case someone messed up with
# self.failureException. It should by default be AssertionError, just
# what is spewed by RelaxNG(), but who knows what might happen.
try:
relaxng.assert_(xml)
except self.failureException:
raise
except AssertionError as e:
self.fail(str(e))

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@ -131,7 +131,7 @@ class TC_10_BaseVM(qubes.tests.QubesTestCase):
'disabledservice': False, 'disabledservice': False,
}) })
lxml.etree.ElementTree(vm.__xml__()).write(sys.stderr, encoding='utf-8', pretty_print=True) self.assertXMLIsValid(vm.__xml__(), '../../relaxng/domain.rng')
def test_001_BaseVM_nxproperty(self): def test_001_BaseVM_nxproperty(self):
xml = lxml.etree.XML(''' xml = lxml.etree.XML('''

12
relaxng/domain.rng Normal file
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@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8" ?>
<grammar xmlns="http://relaxng.org/ns/structure/1.0">
<include href="qubes.rng">
<start>
<ref name="domain" />
</start>
</include>
</grammar>
<!--
vim: ts=4 sw=4 et
-->

308
relaxng/qubes.rng Normal file
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@ -0,0 +1,308 @@
<?xml version="1.0" encoding="utf-8" ?>
<!--
The Qubes OS Project, http://www.qubes-os.org
Copyright (C) 2015 Wojtek Porczyk <woju@invisiblethingslab.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-->
<!--
This is main specification of qubes.xml in RelaxNG. It should not <include> any
other file. If you need to extract some part of specification, just put the part
in question in separate <define> and create small boilerplate schema like this:
<?xml version="1.0" encoding="utf-8" ?>
<grammar xmlns="http://relaxng.org/ns/structure/1.0">
<include href="qubes.rng">
<start>
<ref name="domain" />
</start>
</include>
</grammar>
Don't forget to put <start> *inside* the <include>. If you'd put it outside,
the parser will complain about missing combine= attribute on the second <start>.
-->
<grammar xmlns="http://relaxng.org/ns/structure/1.0"
xmlns:q="http://qubes-os.org/qubes/3"
xmlns:doc="http://qubes-os.org/qubes-doc/1"
datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
<start>
<element name="qubes">
<doc:description>
This is root element of whole qubes tree.
</doc:description>
<attribute name="version">
<doc:description>
Specifies minimal Qubes OS version.
</doc:description>
<value>3.0</value>
<!--
<data type="decimal">
<param name="fractionDigits">1</param>
<param name="minInclusive">0</param>
</data>
-->
</attribute>
<ref name="properties" />
<element name="labels">
<doc:description>
Container for labels.
</doc:description>
<oneOrMore>
<element name="label">
<doc:description>
Label which can be used by domain. One choice of
colour for padlock icon.
</doc:description>
<attribute name="id">
<doc:description>
XML id attribute used for cross-referencing in
properties' ``ref`` attribute.
</doc:description>
<!-- TODO this should be "label-" + name -->
<data type="string">
<param name="pattern">label-[0-9]+</param>
</data>
</attribute>
<optional>
<attribute name="color">
<doc:description>
Label's colour, HTML-like.
</doc:description>
<data type="string">
<param name="pattern">#[0-9a-f]{6}</param>
</data>
</attribute>
</optional>
<data type="string">
<param name="pattern">[a-z0-9_-]+</param>
</data>
</element>
</oneOrMore>
</element>
<element name="domains">
<doc:description>
Container for domains.
</doc:description>
<zeroOrMore>
<ref name="domain" />
</zeroOrMore>
</element>
</element>
</start>
<define name="domain">
<element name="domain">
<doc:description>
One Qubes domain.
</doc:description>
<attribute name="class">
<doc:description>
Type of the domain. This specifies Python's class that is
used for instantiation of this VM.
</doc:description>
<data type="string" />
</attribute>
<attribute name="id">
<doc:description>
XML id attribute used for cross-referencing in properties'
``ref`` attribute.
<!-- TODO this should be "domain-" + domain's name -->
</doc:description>
<data type="string">
<param name="pattern">domain-[0-9]+</param>
</data>
</attribute>
<ref name="properties" />
<optional>
<element name="services">
<doc:description>
Container for services.
</doc:description>
<oneOrMore>
<element name="service">
<doc:description>
One service that is either enabled or disabled.
</doc:description>
<optional>
<attribute name="enabled">
<doc:description>
Whether service is enabled or disabled.
Default is ``true``.
</doc:description>
<doc:metavar>
true|false
</doc:metavar>
<data type="boolean" />
</attribute>
</optional>
<data type="string">
<param name="pattern">[a-z0-9_-]+</param>
</data>
</element>
</oneOrMore>
</element>
</optional>
<zeroOrMore>
<element name="devices">
<doc:description>
Container for devices of particular class.
</doc:description>
<attribute name="class">
<doc:description>
Class of devices in this container. Currently the
only supported is ``pci``.
</doc:description>
<!-- TODO: class can be specified only once -->
<value>pci</value>
<!--
<data type="string">
<param name="pattern">[a-z0-9]+</param>
</data>
-->
</attribute>
<oneOrMore>
<element name="device">
<doc:description>
One device. This tag should contain some
identifier, format of which depends on
particular device class.
</doc:description>
<!-- TODO: pattern dependent on class! -->
<data type="string">
<param name="pattern">[0-9a-f]{2}:[0-9a-f]{2}.[0-9a-f]{2}</param>
</data>
</element>
</oneOrMore>
</element>
</zeroOrMore>
<optional>
<element name="tags">
<doc:description>
Container for user-defined tags.
</doc:description>
<oneOrMore>
<element name="tag">
<doc:description>
Tag value.
Tags are not used anywhere by qubes core, they
are for users reference. In the future they
will be available for use in policies.
</doc:description>
<attribute name="name">
<doc:description>
Name of the tag.
</doc:description>
<data type="string">
<param name="pattern">[a-z0-9_-]+</param>
</data>
</attribute>
<data type="string" />
</element>
</oneOrMore>
</element>
</optional>
<!-- TODO: policy, incl. firewall -->
</element>
</define>
<define name="properties">
<element name="properties">
<doc:description>
Container for properties.
</doc:description>
<zeroOrMore>
<element name="property">
<doc:description>
One property and its value specified either directly
(as text contained in this tag) or as reference to
another XML element in the tree (by ``ref=``
attribute). How it is saved, it depends on particular
property.
</doc:description>
<attribute name="name">
<doc:description>
Property name.
</doc:description>
<data type="string">
<param name="pattern">[a-z0-9_]+</param>
</data>
</attribute>
<choice>
<attribute name="ref">
<doc:description>
Alternative property value, by reference to another XML element.
</doc:description>
<!-- TODO: IDREF (Schematron?) -->
<data type="string" />
</attribute>
<data type="string" />
</choice>
</element>
</zeroOrMore>
</element>
</define>
</grammar>
<!--
vim: ts=4 sw=4 et
-->