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The form checked both with re.match("^[0-9a-f./:]+|^$"), which tests
only how a value starts: "2001:db8::10/64'/><evil/>" passed and went
into the interface XML, which is built with f-strings, while upper-case
hex was refused. An address without a prefix passed too and then failed
with a ValueError when the XML was built.
The address is parsed with ipaddress.IPv6Interface and stored as
address/prefix (/128 when none is given), the gateway with
IPv6Address. A static configuration needs an address, and the XML gets
a route only when a gateway is given instead of gateway=''. The HTML
patterns accept upper-case hex.
Eight of the ten form and XML checks fail on the previous code.
69 lines
2.7 KiB
Python
69 lines
2.7 KiB
Python
"""Host interface form: IPv6 values are validated before they go into the interface XML."""
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from unittest.mock import MagicMock
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from django.test import SimpleTestCase
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from lxml import etree
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from vrtManager.interface import wvmInterfaces
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from interfaces.forms import AddInterface
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BASE = {
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"name": "br1", "itype": "bridge", "start_mode": "onboot", "netdev": "eth1",
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"ipv4_type": "static", "ipv4_addr": "192.0.2.10/24", "ipv4_gw": "192.0.2.1",
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"ipv6_type": "static", "stp": "on", "delay": 0,
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}
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def form(**ipv6):
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return AddInterface(data={**BASE, **ipv6})
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class Ipv6FormTestCase(SimpleTestCase):
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def test_valid_addresses_are_normalized(self):
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f = form(ipv6_addr="2001:DB8::10/64", ipv6_gw="2001:DB8::1")
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self.assertTrue(f.is_valid(), f.errors)
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self.assertEqual(f.cleaned_data["ipv6_addr"], "2001:db8::10/64")
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self.assertEqual(f.cleaned_data["ipv6_gw"], "2001:db8::1")
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def test_address_without_prefix_gets_one(self):
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f = form(ipv6_addr="2001:db8::10", ipv6_gw="")
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self.assertTrue(f.is_valid(), f.errors)
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self.assertEqual(f.cleaned_data["ipv6_addr"], "2001:db8::10/128")
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def test_values_that_only_start_like_an_address_are_rejected(self):
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for field, value in (
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("ipv6_addr", "2001:db8::10/64'/><evil/>"),
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("ipv6_gw", "2001:db8::1'/><evil/>"),
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("ipv6_addr", "2001:db8::zz/64"),
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("ipv6_addr", "192.0.2.10/24"),
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):
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with self.subTest(field=field, value=value):
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f = form(**{"ipv6_addr": "2001:db8::10/64", "ipv6_gw": "", field: value})
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self.assertFalse(f.is_valid())
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self.assertIn(field, f.errors)
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def test_static_needs_an_address(self):
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f = form(ipv6_addr="", ipv6_gw="")
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self.assertFalse(f.is_valid())
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self.assertIn("ipv6_addr", f.errors)
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def test_dhcp_needs_no_address(self):
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self.assertTrue(form(ipv6_type="dhcp", ipv6_addr="", ipv6_gw="").is_valid())
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class Ipv6XmlTestCase(SimpleTestCase):
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def xml(self, gw):
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conn = wvmInterfaces.__new__(wvmInterfaces)
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conn.define_iface = MagicMock()
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conn.get_iface = MagicMock()
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conn.create_iface("br1", "bridge", "onboot", "eth1", "none", "", "", "static", "2001:db8::10/64", gw, "on", 0)
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return etree.fromstring(conn.define_iface.call_args[0][0])
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def test_static_address_with_gateway(self):
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proto = self.xml("2001:db8::1").find("protocol[@family='ipv6']")
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self.assertEqual(proto.find("ip").attrib, {"address": "2001:db8::10", "prefix": "64"})
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self.assertEqual(proto.find("route").get("gateway"), "2001:db8::1")
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def test_no_empty_route_without_gateway(self):
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self.assertIsNone(self.xml("").find("protocol[@family='ipv6']/route"))
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