Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
avocado/tasst/dhcp.py | 133 ++++++++++++++++++++++++++++++++++++++++
avocado/tasst/dhcpv6.py | 123 +++++++++++++++++++++++++++++++++++++
2 files changed, 256 insertions(+)
create mode 100644 avocado/tasst/dhcp.py
create mode 100644 avocado/tasst/dhcpv6.py
diff --git a/avocado/tasst/dhcp.py b/avocado/tasst/dhcp.py
new file mode 100644
index 0000000..071fc20
--- /dev/null
+++ b/avocado/tasst/dhcp.py
@@ -0,0 +1,133 @@
+#! /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/dhcp.py - Helpers for testing DHCP
+#
+# 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_NET_1
+from tasst.nstool import UnshareSite
+
+
+class BaseDhcpTasst(Tasst):
+ """
+ Test DHCP behaviour.
+
+ :avocado: disable
+ """
+
+ DHCLIENT = '/sbin/dhclient'
+
+ def subsetup(self, site, ifname, addr, gw, mtu):
+ site.require_cmds(self.DHCLIENT)
+
+ pidfile = os.path.join(self.workdir, 'dhclient.pid')
+ leasefile = os.path.join(self.workdir, 'dhclient.leases')
+
+ # We need '-nc' because we may be running with capabilities
+ # but not UID 0. Without -nc dhclient drops capabilities
+ # before invoking dhclient-script, so it's unable to actually
+ # configure the interface
+ site.fg('{} -4 -v -nc -pf {} -lf {} {}'
+ .format(self.DHCLIENT, pidfile, leasefile, ifname), sudo=True)
+
+ Tasst.subsetup(self, BaseDhcpTasst,
+ TasstSubData(site=site, ifname=ifname, addr=addr, gw=gw,
mtu=mtu))
+
+ def test_addr(self):
+ sub = self.get_subsetup(BaseDhcpTasst)
+ (addr,) = sub.site.addrs(sub.ifname, family='inet',
scope='global')
+ self.assertEquals(addr.ip, sub.addr)
+
+ def test_route(self):
+ sub = self.get_subsetup(BaseDhcpTasst)
+ (defroute,) = sub.site.routes4(dst='default')
+ self.assertEquals(ipaddress.ip_address(defroute['gateway']), sub.gw)
+
+ def test_mtu(self):
+ sub = self.get_subsetup(BaseDhcpTasst)
+ self.assertEquals(sub.site.mtu(sub.ifname), sub.mtu)
+
+
+class MetaDhcpTasst(BaseDhcpTasst):
+ """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()
+
+ def test_mtu(self):
+ super().test_mtu()
+
+
+class DhcpdTasst(MetaDhcpTasst):
+ DHCPD = 'dhcpd'
+ SUBNET = TEST_NET_1
+
+ def setUp(self):
+ super().setUp()
+
+ ifname = 'clientif'
+ server_ifname = 'serverif'
+
+ self.client = UnshareSite(self.__class__.__name__ + '.client',
'-Un')
+ self.server = UnshareSite(self.__class__.__name__ + '.server',
'-n',
+ parent=self.client, sudo=True)
+
+ self.server.require_cmds(self.DHCPD)
+
+ self.client.veth(ifname, server_ifname, self.server)
+
+ # Configure the DHCP server
+ ipa = IpiAllocator(self.SUBNET)
+ (server_ip4,) = ipa.next_ipis()
+ (client_ip4,) = ipa.next_ipis()
+
+ confpath = os.path.join(self.workdir, 'dhcpd.conf')
+ open(confpath, 'w').write('''
+ subnet {} netmask {} {{
+ option routers {};
+ range {} {};
+ }}
+ '''.format(self.SUBNET.network_address, self.SUBNET.netmask,
+ server_ip4.ip, client_ip4.ip, client_ip4.ip))
+ self.pidpath = os.path.join(self.workdir, 'dhcpd.pid')
+ leasepath = os.path.join(self.workdir, 'dhcpd.leases')
+ open(leasepath, 'w').write('')
+
+ self.server.ifup('lo')
+ self.server.ifup(server_ifname, server_ip4)
+
+ opts = ('-f -d -4 -cf {} -lf {} -pf {}'.format(confpath, leasepath,
self.pidpath))
+ self.server.fg('{} -t {}'.format(self.DHCPD, opts)) # test config
+ self.dhcpd = self.server.bg('{} {}'.format(self.DHCPD, opts),
sudo=True)
+
+ # Configure the client
+ self.client.ifup('lo')
+ BaseDhcpTasst.subsetup(self, self.client, ifname, client_ip4.ip, server_ip4.ip,
1500)
+
+ def tearDown(self):
+ pid = int(open(self.pidpath).read())
+ self.server.fg('kill {}'.format(pid))
+ status = self.dhcpd.wait()
+ self.server.close()
+ self.client.close()
+ super().tearDown()
diff --git a/avocado/tasst/dhcpv6.py b/avocado/tasst/dhcpv6.py
new file mode 100644
index 0000000..e885c06
--- /dev/null
+++ b/avocado/tasst/dhcpv6.py
@@ -0,0 +1,123 @@
+#! /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/dhcpv6.py - Helpers for testing DHCPv6
+#
+# 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 BaseDhcpv6Tasst(Tasst):
+ """
+ Test DHCPv6 behaviour.
+
+ :avocado: disable
+ """
+
+ DHCLIENT = '/sbin/dhclient'
+
+ def subsetup(self, site, ifname, addr):
+ site.require_cmds(self.DHCLIENT)
+
+ pidfile = os.path.join(self.workdir, 'dhclient.pid')
+ leasefile = os.path.join(self.workdir, 'dhclient.leases')
+
+ # We need '-nc' because we may be running with capabilities
+ # but not UID 0. Without -nc dhclient drops capabilities
+ # before invoking dhclient-script, so it's unable to actually
+ # configure the interface
+ site.fg('{} -6 -v -nc -pf {} -lf {} {}'
+ .format(self.DHCLIENT, pidfile, leasefile, ifname), sudo=True)
+
+ Tasst.subsetup(self, BaseDhcpv6Tasst,
+ TasstSubData(site=site, ifname=ifname, addr=addr))
+
+ def test_addr(self):
+ sub = self.get_subsetup(BaseDhcpv6Tasst)
+ addrs = [a.ip for a in sub.site.addrs(sub.ifname, family='inet6',
scope='global')]
+ self.assertIn(sub.addr, addrs) # Might also have a SLAAC address
+
+
+class MetaDhcpv6Tasst(BaseDhcpv6Tasst):
+ """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()
+
+
+class Dhcpd6Tasst(MetaDhcpv6Tasst):
+ """
+ :avocado: tags=meta
+ """
+
+ DHCPD = 'dhcpd'
+ SUBNET = TEST_NET6_TASST_A
+
+ def setUp(self):
+ super().setUp()
+
+ ifname = 'clientif'
+ server_ifname = 'serverif'
+
+ self.client = UnshareSite(self.__class__.__name__ + '.client',
'-Un')
+ self.server = UnshareSite(self.__class__.__name__ + '.server',
'-n',
+ parent=self.client, sudo=True)
+
+ self.server.require_cmds(self.DHCPD)
+
+ self.client.veth(ifname, server_ifname, self.server)
+
+ # Allocate IPs, and sort out link local addressing
+ ipa = IpiAllocator(self.SUBNET)
+ (server_ip6,) = ipa.next_ipis()
+ (client_ip6,) = ipa.next_ipis()
+
+ self.server.ifup('lo')
+ self.server.ifup(server_ifname, server_ip6)
+ self.client.ifup('lo')
+ self.client.ifup(ifname)
+ (server_ip6_ll,) = self.server.addr_wait(server_ifname, family='inet6',
scope='link')
+
+ # Configure the DHCP server
+ confpath = os.path.join(self.workdir, 'dhcpd.conf')
+ open(confpath, 'w').write('''
+ subnet6 {} {{
+ range6 {} {};
+ }}
+ '''.format(self.SUBNET, client_ip6.ip, client_ip6.ip))
+ self.pidpath = os.path.join(self.workdir, 'dhcpd.pid')
+ leasepath = os.path.join(self.workdir, 'dhcpd.leases')
+ open(leasepath, 'w').write('')
+
+ opts = ('-f -d -6 -cf {} -lf {} -pf {}'.format(confpath, leasepath,
self.pidpath))
+ self.server.fg('{} -t {}'.format(self.DHCPD, opts)) # test config
+ self.dhcpd = self.server.bg('{} {}'.format(self.DHCPD, opts),
sudo=True)
+
+ # Configure the client
+ BaseDhcpv6Tasst.subsetup(self, self.client, ifname, client_ip6.ip)
+
+ def tearDown(self):
+ pid = int(open(self.pidpath).read())
+ self.server.fg('kill {}'.format(pid))
+ status = self.dhcpd.wait()
+ self.server.close()
+ self.client.close()
+ super().tearDown()
--
2.40.1