Signed-iff-by: David Gibson <david(a)gibson.dropbear.id.au> --- avocado/tasst/ndp.py | 129 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 129 insertions(+) create mode 100644 avocado/tasst/ndp.py diff --git a/avocado/tasst/ndp.py b/avocado/tasst/ndp.py new file mode 100644 index 0000000..5d9c01c --- /dev/null +++ b/avocado/tasst/ndp.py @@ -0,0 +1,129 @@ +#! /usr/bin/python3 + +# SPDX-License-Identifier: GPL-2.0-or-later +# +# tasst - Test A Simple Socket Transport +# library of test helpers for passt & pasta +# +# tasst/ndp.py - Helpers for testing NDP +# +# Copyright Red Hat +# Author: David Gibson <david(a)gibson.dropbear.id.au> + +import ipaddress +import os + +from tasst import Tasst, TasstSubData +from tasst.address import IpiAllocator, TEST_NET6_TASST_A +from tasst.nstool import UnshareSite + +class BaseNdpTasst(Tasst): + """ + Test NDP behaviour. + + :avocado: disable + """ + + def subsetup(self, site, ifname, net, gw): + Tasst.subsetup(self, BaseNdpTasst, + TasstSubData(site=site, ifname=ifname, net=net, gw=gw)) + + def test_addr(self): + sub = self.get_subsetup(BaseNdpTasst) + + # Wait for NDP to do its thing + (addr,) = sub.site.addr_wait(sub.ifname, family='inet6', scope='global') + + # The SLAAC address is derived from the guest ns MAC, so + # probably won't exactly match the host address (we need + # DHCPv6 for that). It should be in the right network though. + self.assertEquals(addr.network, sub.net) + + def test_route(self): + sub = self.get_subsetup(BaseNdpTasst) + + defroutes = sub.site.routes6(dst='default') + while not defroutes: + defroutes = sub.site.routes6(dst='default') + + self.assertEquals(len(defroutes), 1) + gateway = ipaddress.ip_address(defroutes[0]['gateway']) + self.assertEquals(gateway, sub.gw) + + +class MetaNdpTasst(BaseNdpTasst): + """Ugly workaround for + https://github.com/avocado-framework/avocado/issues/5680. + Explicitly apply the "meta" tag to inherited tests + + :avocado: disable + :avocado: tags=meta + + """ + + def test_addr(self): + super().test_addr() + + def test_route(self): + super().test_route() + + +class RadvdNdpTasst(MetaNdpTasst): + timeout = 15.0 + + def setUp(self): + super().setUp() + + ifname = 'clientif' + router_ifname = 'routerif' + prefix = TEST_NET6_TASST_A + + self.client = UnshareSite(self.__class__.__name__ + '.client', '-Un') + self.router = UnshareSite(self.__class__.__name__ + '.router', '-n', + parent=self.client, sudo=True) + + self.router.require_cmds('radvd') + + self.client.veth(ifname, router_ifname, self.router) + + # Configure the simulated router + ipa = IpiAllocator(prefix) + (router_ip6,) = ipa.next_ipis() + + confpath = os.path.join(self.workdir, 'radvd.conf') + self.pidpath = os.path.join(self.workdir, 'radvd.pid') + open(confpath, 'w').write( + ''' + interface {} {{ + AdvSendAdvert on; + prefix {} {{ + }}; + }}; + '''.format(router_ifname, prefix)) + + self.router.ifup('lo') + self.router.ifup('routerif', router_ip6) + + # Configure the client + self.client.ifup('lo') + self.client.ifup(ifname) + + # Get the router's link-local-address + (self.router_ll,) = self.router.addr_wait(router_ifname, + family='inet6', scope='link') + + # Run radvd + self.router.fg('radvd -c -C {}'.format(confpath)) + self.radvd = self.router.bg('radvd -C {} -p {} -n -d 5'.format(confpath, self.pidpath), + sudo=True) + + BaseNdpTasst.subsetup(self, self.client, ifname, prefix, self.router_ll.ip) + + def tearDown(self): + pid = int(open(self.pidpath).read()) + self.router.fg('kill {}'.format(pid)) + status = self.radvd.wait() + self.assertEquals(status, 0) + self.router.close() + self.client.close() + super().tearDown() -- 2.40.1