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vpp/test/test_dhcp6.py
Paul Vinciguerra 8feeaff56f Typos. A bunch of typos I've been collecting. 
Change-Id: I53ab8d17914e6563110354e4052109ac02bf8f3b
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-03-28 06:36:04 +00:00

773 lines
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Python
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from socket import AF_INET6
from scapy.layers.dhcp6 import DHCP6_Advertise, DHCP6OptClientId, \
DHCP6OptStatusCode, DHCP6OptPref, DHCP6OptIA_PD, DHCP6OptIAPrefix, \
DHCP6OptServerId, DHCP6_Solicit, DHCP6_Reply, DHCP6_Request, DHCP6_Renew, \
DHCP6_Rebind, DUID_LL, DHCP6_Release, DHCP6OptElapsedTime, DHCP6OptIA_NA, \
DHCP6OptIAAddress
from scapy.layers.inet6 import IPv6, Ether, UDP
from scapy.utils6 import in6_mactoifaceid
from scapy.utils import inet_ntop, inet_pton
from framework import VppTestCase
import util
def ip6_normalize(ip6):
return inet_ntop(AF_INET6, inet_pton(AF_INET6, ip6))
class TestDHCPv6DataPlane(VppTestCase):
""" DHCPv6 Data Plane Test Case """
@classmethod
def setUpClass(cls):
super(TestDHCPv6DataPlane, cls).setUpClass()
def setUp(self):
super(TestDHCPv6DataPlane, self).setUp()
self.create_pg_interfaces(range(1))
self.interfaces = list(self.pg_interfaces)
for i in self.interfaces:
i.admin_up()
i.config_ip6()
self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
def tearDown(self):
for i in self.interfaces:
i.unconfig_ip6()
i.admin_down()
super(TestDHCPv6DataPlane, self).tearDown()
def test_dhcp_ia_na_send_solicit_receive_advertise(self):
""" Verify DHCPv6 IA NA Solicit packet and Advertise event """
self.vapi.dhcp6_clients_enable_disable()
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
address_bin = '\00\01\00\02\00\03' + '\00' * 8 + '\00\05'
address = {'address': address_bin,
'preferred_time': 60,
'valid_time': 120}
self.vapi.dhcp6_send_client_message(msg_type=1,
sw_if_index=self.pg0.sw_if_index,
T1=20, T2=40, addresses=[address],
n_addresses=len([address]))
rx_list = self.pg0.get_capture(1)
self.assertEqual(len(rx_list), 1)
packet = rx_list[0]
self.assertEqual(packet.haslayer(IPv6), 1)
self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
client_duid = packet[DHCP6OptClientId].duid
trid = packet[DHCP6_Solicit].trid
dst = ip6_normalize(packet[IPv6].dst)
dst2 = ip6_normalize("ff02::1:2")
self.assert_equal(dst, dst2)
src = ip6_normalize(packet[IPv6].src)
src2 = ip6_normalize(self.pg0.local_ip6_ll)
self.assert_equal(src, src2)
ia_na = packet[DHCP6OptIA_NA]
self.assert_equal(ia_na.T1, 20)
self.assert_equal(ia_na.T2, 40)
self.assert_equal(len(ia_na.ianaopts), 1)
address = ia_na.ianaopts[0]
self.assert_equal(address.addr, '1:2:3::5')
self.assert_equal(address.preflft, 60)
self.assert_equal(address.validlft, 120)
self.vapi.want_dhcp6_reply_events()
try:
ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=60,
validlft=120)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
dst=self.pg0.local_ip6_ll) /
UDP(sport=547, dport=546) /
DHCP6_Advertise(trid=trid) /
DHCP6OptServerId(duid=self.server_duid) /
DHCP6OptClientId(duid=client_duid) /
DHCP6OptPref(prefval=7) /
DHCP6OptStatusCode(statuscode=1) /
DHCP6OptIA_NA(iaid=1, T1=20, T2=40, ianaopts=ia_na_opts)
)
self.pg0.add_stream([p])
self.pg_start()
ev = self.vapi.wait_for_event(1, "dhcp6_reply_event")
self.assert_equal(ev.preference, 7)
self.assert_equal(ev.status_code, 1)
self.assert_equal(ev.T1, 20)
self.assert_equal(ev.T2, 40)
reported_address = ev.addresses[0]
address = inet_pton(AF_INET6, ia_na_opts.getfieldval("addr"))
self.assert_equal(reported_address.address, address)
self.assert_equal(reported_address.preferred_time,
ia_na_opts.getfieldval("preflft"))
self.assert_equal(reported_address.valid_time,
ia_na_opts.getfieldval("validlft"))
finally:
self.vapi.want_dhcp6_reply_events(enable_disable=0)
def test_dhcp_pd_send_solicit_receive_advertise(self):
""" Verify DHCPv6 PD Solicit packet and Advertise event """
self.vapi.dhcp6_clients_enable_disable()
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
prefix_bin = '\00\01\00\02\00\03' + '\00' * 10
prefix = {'prefix': prefix_bin,
'prefix_length': 50,
'preferred_time': 60,
'valid_time': 120}
self.vapi.dhcp6_pd_send_client_message(1, self.pg0.sw_if_index,
T1=20, T2=40, prefixes=[prefix])
rx_list = self.pg0.get_capture(1)
self.assertEqual(len(rx_list), 1)
packet = rx_list[0]
self.assertEqual(packet.haslayer(IPv6), 1)
self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1)
client_duid = packet[DHCP6OptClientId].duid
trid = packet[DHCP6_Solicit].trid
dst = ip6_normalize(packet[IPv6].dst)
dst2 = ip6_normalize("ff02::1:2")
self.assert_equal(dst, dst2)
src = ip6_normalize(packet[IPv6].src)
src2 = ip6_normalize(self.pg0.local_ip6_ll)
self.assert_equal(src, src2)
ia_pd = packet[DHCP6OptIA_PD]
self.assert_equal(ia_pd.T1, 20)
self.assert_equal(ia_pd.T2, 40)
self.assert_equal(len(ia_pd.iapdopt), 1)
prefix = ia_pd.iapdopt[0]
self.assert_equal(prefix.prefix, '1:2:3::')
self.assert_equal(prefix.plen, 50)
self.assert_equal(prefix.preflft, 60)
self.assert_equal(prefix.validlft, 120)
self.vapi.want_dhcp6_pd_reply_events()
try:
ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=60,
validlft=120)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
dst=self.pg0.local_ip6_ll) /
UDP(sport=547, dport=546) /
DHCP6_Advertise(trid=trid) /
DHCP6OptServerId(duid=self.server_duid) /
DHCP6OptClientId(duid=client_duid) /
DHCP6OptPref(prefval=7) /
DHCP6OptStatusCode(statuscode=1) /
DHCP6OptIA_PD(iaid=1, T1=20, T2=40, iapdopt=ia_pd_opts)
)
self.pg0.add_stream([p])
self.pg_start()
ev = self.vapi.wait_for_event(1, "dhcp6_pd_reply_event")
self.assert_equal(ev.preference, 7)
self.assert_equal(ev.status_code, 1)
self.assert_equal(ev.T1, 20)
self.assert_equal(ev.T2, 40)
reported_prefix = ev.prefixes[0]
prefix = inet_pton(AF_INET6, ia_pd_opts.getfieldval("prefix"))
self.assert_equal(reported_prefix.prefix, prefix)
self.assert_equal(reported_prefix.prefix_length,
ia_pd_opts.getfieldval("plen"))
self.assert_equal(reported_prefix.preferred_time,
ia_pd_opts.getfieldval("preflft"))
self.assert_equal(reported_prefix.valid_time,
ia_pd_opts.getfieldval("validlft"))
finally:
self.vapi.want_dhcp6_pd_reply_events(enable_disable=0)
class TestDHCPv6IANAControlPlane(VppTestCase):
""" DHCPv6 IA NA Control Plane Test Case """
@classmethod
def setUpClass(cls):
super(TestDHCPv6IANAControlPlane, cls).setUpClass()
def setUp(self):
super(TestDHCPv6IANAControlPlane, self).setUp()
self.create_pg_interfaces(range(1))
self.interfaces = list(self.pg_interfaces)
for i in self.interfaces:
i.admin_up()
self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
self.client_duid = None
self.T1 = 1
self.T2 = 2
fib = self.vapi.ip6_fib_dump()
self.initial_addresses = set(self.get_interface_addresses(fib,
self.pg0))
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.vapi.dhcp6_client_enable_disable(self.pg0.sw_if_index)
def tearDown(self):
self.vapi.dhcp6_client_enable_disable(self.pg0.sw_if_index, enable=0)
for i in self.interfaces:
i.admin_down()
super(TestDHCPv6IANAControlPlane, self).tearDown()
@staticmethod
def get_interface_addresses(fib, pg):
lst = []
for entry in fib:
if entry.address_length == 128:
path = entry.path[0]
if path.sw_if_index == pg.sw_if_index:
lst.append(entry.address)
return lst
def get_addresses(self):
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg0))
return addresses.difference(self.initial_addresses)
def validate_duid_ll(self, duid):
DUID_LL(duid)
def validate_packet(self, packet, msg_type, is_resend=False):
try:
self.assertEqual(packet.haslayer(msg_type), 1)
client_duid = packet[DHCP6OptClientId].duid
if self.client_duid is None:
self.client_duid = client_duid
self.validate_duid_ll(client_duid)
else:
self.assertEqual(self.client_duid, client_duid)
if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
server_duid = packet[DHCP6OptServerId].duid
self.assertEqual(server_duid, self.server_duid)
if is_resend:
self.assertEqual(self.trid, packet[msg_type].trid)
else:
self.trid = packet[msg_type].trid
ip = packet[IPv6]
udp = packet[UDP]
self.assertEqual(ip.dst, 'ff02::1:2')
self.assertEqual(udp.sport, 546)
self.assertEqual(udp.dport, 547)
dhcpv6 = packet[msg_type]
elapsed_time = dhcpv6[DHCP6OptElapsedTime]
if (is_resend):
self.assertNotEqual(elapsed_time.elapsedtime, 0)
else:
self.assertEqual(elapsed_time.elapsedtime, 0)
except:
packet.show()
raise
def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
if timeout is None:
timeout = 3
rx_list = self.pg0.get_capture(1, timeout=timeout)
packet = rx_list[0]
self.validate_packet(packet, msg_type, is_resend=is_resend)
def wait_for_solicit(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
def wait_for_request(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
def wait_for_renew(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
def wait_for_rebind(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
def wait_for_release(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
def send_packet(self, msg_type, t1=None, t2=None, ianaopts=None):
if t1 is None:
t1 = self.T1
if t2 is None:
t2 = self.T2
if ianaopts is None:
opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2)
else:
opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2, ianaopts=ianaopts)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
dst=self.pg0.local_ip6_ll) /
UDP(sport=547, dport=546) /
msg_type(trid=self.trid) /
DHCP6OptServerId(duid=self.server_duid) /
DHCP6OptClientId(duid=self.client_duid) /
opt_ia_na
)
self.pg0.add_stream([p])
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
def send_advertise(self, t1=None, t2=None, ianaopts=None):
self.send_packet(DHCP6_Advertise, t1, t2, ianaopts)
def send_reply(self, t1=None, t2=None, ianaopts=None):
self.send_packet(DHCP6_Reply, t1, t2, ianaopts)
def test_T1_and_T2_timeouts(self):
""" Test T1 and T2 timeouts """
self.wait_for_solicit()
self.send_advertise()
self.wait_for_request()
self.send_reply()
self.sleep(1)
self.wait_for_renew()
self.pg_enable_capture(self.pg_interfaces)
self.sleep(1)
self.wait_for_rebind()
def test_addresses(self):
""" Test handling of addresses """
ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=1,
validlft=2)
self.wait_for_solicit()
self.send_advertise(t1=20, t2=40, ianaopts=ia_na_opts)
self.wait_for_request()
self.send_reply(t1=20, t2=40, ianaopts=ia_na_opts)
self.sleep(0.1)
# check FIB for new address
new_addresses = self.get_addresses()
self.assertEqual(len(new_addresses), 1)
addr = list(new_addresses)[0]
self.assertEqual(inet_ntop(AF_INET6, addr), '7:8::2')
self.sleep(2)
# check that the address is deleted
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg0))
new_addresses = addresses.difference(self.initial_addresses)
self.assertEqual(len(new_addresses), 0)
def test_sending_client_messages_solicit(self):
""" VPP receives messages from DHCPv6 client """
self.wait_for_solicit()
self.send_packet(DHCP6_Solicit)
self.send_packet(DHCP6_Request)
self.send_packet(DHCP6_Renew)
self.send_packet(DHCP6_Rebind)
self.sleep(1)
self.wait_for_solicit(is_resend=True)
def test_sending_inappropriate_packets(self):
""" Server sends messages with inappropriate message types """
self.wait_for_solicit()
self.send_reply()
self.wait_for_solicit(is_resend=True)
self.send_advertise()
self.wait_for_request()
self.send_advertise()
self.wait_for_request(is_resend=True)
self.send_reply()
self.wait_for_renew()
def test_no_address_available_in_advertise(self):
""" Advertise message contains NoAddrsAvail status code """
self.wait_for_solicit()
noavail = DHCP6OptStatusCode(statuscode=2) # NoAddrsAvail
self.send_advertise(ianaopts=noavail)
self.wait_for_solicit(is_resend=True)
def test_preferred_greater_than_valid_lifetime(self):
""" Preferred lifetime is greater than valid lifetime """
self.wait_for_solicit()
self.send_advertise()
self.wait_for_request()
ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=3)
self.send_reply(ianaopts=ia_na_opts)
self.sleep(0.5)
# check FIB contains no addresses
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg0))
new_addresses = addresses.difference(self.initial_addresses)
self.assertEqual(len(new_addresses), 0)
def test_T1_greater_than_T2(self):
""" T1 is greater than T2 """
self.wait_for_solicit()
self.send_advertise()
self.wait_for_request()
ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=8)
self.send_reply(t1=80, t2=40, ianaopts=ia_na_opts)
self.sleep(0.5)
# check FIB contains no addresses
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg0))
new_addresses = addresses.difference(self.initial_addresses)
self.assertEqual(len(new_addresses), 0)
class TestDHCPv6PDControlPlane(VppTestCase):
""" DHCPv6 PD Control Plane Test Case """
@classmethod
def setUpClass(cls):
super(TestDHCPv6PDControlPlane, cls).setUpClass()
def setUp(self):
super(TestDHCPv6PDControlPlane, self).setUp()
self.create_pg_interfaces(range(2))
self.interfaces = list(self.pg_interfaces)
for i in self.interfaces:
i.admin_up()
self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac)
self.client_duid = None
self.T1 = 1
self.T2 = 2
fib = self.vapi.ip6_fib_dump()
self.initial_addresses = set(self.get_interface_addresses(fib,
self.pg1))
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.prefix_group = 'my-pd-prefix-group'
self.vapi.dhcp6_pd_client_enable_disable(
self.pg0.sw_if_index,
prefix_group=self.prefix_group)
def tearDown(self):
self.vapi.dhcp6_pd_client_enable_disable(self.pg0.sw_if_index,
enable=0)
for i in self.interfaces:
i.admin_down()
super(TestDHCPv6PDControlPlane, self).tearDown()
@staticmethod
def get_interface_addresses(fib, pg):
lst = []
for entry in fib:
if entry.address_length == 128:
path = entry.path[0]
if path.sw_if_index == pg.sw_if_index:
lst.append(entry.address)
return lst
def get_addresses(self):
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg1))
return addresses.difference(self.initial_addresses)
def validate_duid_ll(self, duid):
DUID_LL(duid)
def validate_packet(self, packet, msg_type, is_resend=False):
try:
self.assertEqual(packet.haslayer(msg_type), 1)
client_duid = packet[DHCP6OptClientId].duid
if self.client_duid is None:
self.client_duid = client_duid
self.validate_duid_ll(client_duid)
else:
self.assertEqual(self.client_duid, client_duid)
if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind:
server_duid = packet[DHCP6OptServerId].duid
self.assertEqual(server_duid, self.server_duid)
if is_resend:
self.assertEqual(self.trid, packet[msg_type].trid)
else:
self.trid = packet[msg_type].trid
ip = packet[IPv6]
udp = packet[UDP]
self.assertEqual(ip.dst, 'ff02::1:2')
self.assertEqual(udp.sport, 546)
self.assertEqual(udp.dport, 547)
dhcpv6 = packet[msg_type]
elapsed_time = dhcpv6[DHCP6OptElapsedTime]
if (is_resend):
self.assertNotEqual(elapsed_time.elapsedtime, 0)
else:
self.assertEqual(elapsed_time.elapsedtime, 0)
except:
packet.show()
raise
def wait_for_packet(self, msg_type, timeout=None, is_resend=False):
if timeout is None:
timeout = 3
rx_list = self.pg0.get_capture(1, timeout=timeout)
packet = rx_list[0]
self.validate_packet(packet, msg_type, is_resend=is_resend)
def wait_for_solicit(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend)
def wait_for_request(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend)
def wait_for_renew(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend)
def wait_for_rebind(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend)
def wait_for_release(self, timeout=None, is_resend=False):
self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend)
def send_packet(self, msg_type, t1=None, t2=None, iapdopt=None):
if t1 is None:
t1 = self.T1
if t2 is None:
t2 = self.T2
if iapdopt is None:
opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2)
else:
opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2, iapdopt=iapdopt)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IPv6(src=util.mk_ll_addr(self.pg0.remote_mac),
dst=self.pg0.local_ip6_ll) /
UDP(sport=547, dport=546) /
msg_type(trid=self.trid) /
DHCP6OptServerId(duid=self.server_duid) /
DHCP6OptClientId(duid=self.client_duid) /
opt_ia_pd
)
self.pg0.add_stream([p])
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
def send_advertise(self, t1=None, t2=None, iapdopt=None):
self.send_packet(DHCP6_Advertise, t1, t2, iapdopt)
def send_reply(self, t1=None, t2=None, iapdopt=None):
self.send_packet(DHCP6_Reply, t1, t2, iapdopt)
def test_T1_and_T2_timeouts(self):
""" Test T1 and T2 timeouts """
self.wait_for_solicit()
self.send_advertise()
self.wait_for_request()
self.send_reply()
self.sleep(1)
self.wait_for_renew()
self.pg_enable_capture(self.pg_interfaces)
self.sleep(1)
self.wait_for_rebind()
def test_prefixes(self):
""" Test handling of prefixes """
address_bin_1 = None
address_bin_2 = None
try:
address_bin_1 = '\x00' * 6 + '\x00\x02' + '\x00' * 6 + '\x04\x05'
address_prefix_length_1 = 60
self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
address_bin_1,
address_prefix_length_1,
self.prefix_group)
ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=2,
validlft=3)
self.wait_for_solicit()
self.send_advertise(t1=20, t2=40, iapdopt=ia_pd_opts)
self.wait_for_request()
self.send_reply(t1=20, t2=40, iapdopt=ia_pd_opts)
self.sleep(0.1)
# check FIB for new address
new_addresses = self.get_addresses()
self.assertEqual(len(new_addresses), 1)
addr = list(new_addresses)[0]
self.assertEqual(inet_ntop(AF_INET6, addr), '7:8:0:2::405')
self.sleep(1)
address_bin_2 = '\x00' * 6 + '\x00\x76' + '\x00' * 6 + '\x04\x06'
address_prefix_length_2 = 62
self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
address_bin_2,
address_prefix_length_2,
self.prefix_group)
self.sleep(1)
# check FIB contains 2 addresses
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg1))
new_addresses = addresses.difference(self.initial_addresses)
self.assertEqual(len(new_addresses), 2)
addr1 = list(new_addresses)[0]
addr2 = list(new_addresses)[1]
if inet_ntop(AF_INET6, addr1) == '7:8:0:76::406':
addr1, addr2 = addr2, addr1
self.assertEqual(inet_ntop(AF_INET6, addr1), '7:8:0:2::405')
self.assertEqual(inet_ntop(AF_INET6, addr2), '7:8:0:76::406')
self.sleep(1)
# check that the addresses are deleted
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg1))
new_addresses = addresses.difference(self.initial_addresses)
self.assertEqual(len(new_addresses), 0)
finally:
if address_bin_1 is not None:
self.vapi.ip6_add_del_address_using_prefix(
self.pg1.sw_if_index, address_bin_1,
address_prefix_length_1, self.prefix_group, is_add=0)
if address_bin_2 is not None:
self.vapi.ip6_add_del_address_using_prefix(
self.pg1.sw_if_index, address_bin_2,
address_prefix_length_2, self.prefix_group, is_add=0)
def test_sending_client_messages_solicit(self):
""" VPP receives messages from DHCPv6 client """
self.wait_for_solicit()
self.send_packet(DHCP6_Solicit)
self.send_packet(DHCP6_Request)
self.send_packet(DHCP6_Renew)
self.send_packet(DHCP6_Rebind)
self.sleep(1)
self.wait_for_solicit(is_resend=True)
def test_sending_inappropriate_packets(self):
""" Server sends messages with inappropriate message types """
self.wait_for_solicit()
self.send_reply()
self.wait_for_solicit(is_resend=True)
self.send_advertise()
self.wait_for_request()
self.send_advertise()
self.wait_for_request(is_resend=True)
self.send_reply()
self.wait_for_renew()
def test_no_prefix_available_in_advertise(self):
""" Advertise message contains NoPrefixAvail status code """
self.wait_for_solicit()
noavail = DHCP6OptStatusCode(statuscode=6) # NoPrefixAvail
self.send_advertise(iapdopt=noavail)
self.wait_for_solicit(is_resend=True)
def test_preferred_greater_than_valid_lifetime(self):
""" Preferred lifetime is greater than valid lifetime """
try:
address_bin = '\x00' * 6 + '\x00\x02' + '\x00' * 6 + '\x04\x05'
address_prefix_length = 60
self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
address_bin,
address_prefix_length,
self.prefix_group)
self.wait_for_solicit()
self.send_advertise()
self.wait_for_request()
ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
validlft=3)
self.send_reply(iapdopt=ia_pd_opts)
self.sleep(0.5)
# check FIB contains no addresses
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg1))
new_addresses = addresses.difference(self.initial_addresses)
self.assertEqual(len(new_addresses), 0)
finally:
self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
address_bin,
address_prefix_length,
self.prefix_group,
is_add=0)
def test_T1_greater_than_T2(self):
""" T1 is greater than T2 """
try:
address_bin = '\x00' * 6 + '\x00\x02' + '\x00' * 6 + '\x04\x05'
address_prefix_length = 60
self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
address_bin,
address_prefix_length,
self.prefix_group)
self.wait_for_solicit()
self.send_advertise()
self.wait_for_request()
ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4,
validlft=8)
self.send_reply(t1=80, t2=40, iapdopt=ia_pd_opts)
self.sleep(0.5)
# check FIB contains no addresses
fib = self.vapi.ip6_fib_dump()
addresses = set(self.get_interface_addresses(fib, self.pg1))
new_addresses = addresses.difference(self.initial_addresses)
self.assertEqual(len(new_addresses), 0)
finally:
self.vapi.ip6_add_del_address_using_prefix(self.pg1.sw_if_index,
address_bin,
address_prefix_length,
self.prefix_group,
is_add=0)
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