def add_del_mcast_tunnels_load(cls, is_add):
"""
add or del tunnels to test vxlan stability
"""
n_distinct_dst_tunnels = 200
ip_range_start = 10
ip_range_end = ip_range_start + n_distinct_dst_tunnels
for dest_ip4 in ip4_range(cls.mcast_ip4, ip_range_start, ip_range_end):
vni = bytearray(socket.inet_pton(socket.AF_INET, dest_ip4))[3]
r = VppVxlanTunnel(cls,
src=cls.pg0.local_ip4,
dst=dest_ip4,
mcast_sw_if_index=1,
vni=vni)
if is_add:
r.add_vpp_config()
else:
r.remove_vpp_config()
def add_del_shared_mcast_dst_load(cls, is_add):
"""
add or del tunnels sharing the same mcast dst
to test vxlan ref_count mechanism
"""
n_shared_dst_tunnels = 20
vni_start = 10000
vni_end = vni_start + n_shared_dst_tunnels
for vni in range(vni_start, vni_end):
r = VppVxlanTunnel(cls,
src=cls.pg0.local_ip4,
dst=cls.mcast_ip4,
mcast_sw_if_index=1,
vni=vni)
if is_add:
r.add_vpp_config()
if r.sw_if_index == 0xffffffff:
raise ValueError("bad sw_if_index: ~0")
else:
r.remove_vpp_config()
class TestGSO(VppTestCase):
""" GSO Test Case """
def __init__(self, *args):
VppTestCase.__init__(self, *args)
@classmethod
def setUpClass(self):
super(TestGSO, self).setUpClass()
res = self.create_pg_interfaces(range(2))
res_gso = self.create_pg_interfaces(range(2, 4), 1, 1460)
self.create_pg_interfaces(range(4, 5), 1, 8940)
self.pg_interfaces.append(res[0])
self.pg_interfaces.append(res[1])
self.pg_interfaces.append(res_gso[0])
self.pg_interfaces.append(res_gso[1])
@classmethod
def tearDownClass(self):
super(TestGSO, self).tearDownClass()
def setUp(self):
super(TestGSO, self).setUp()
for i in self.pg_interfaces:
i.admin_up()
i.config_ip4()
i.config_ip6()
i.disable_ipv6_ra()
i.resolve_arp()
i.resolve_ndp()
self.single_tunnel_bd = 10
self.vxlan = VppVxlanTunnel(self,
src=self.pg0.local_ip4,
dst=self.pg0.remote_ip4,
vni=self.single_tunnel_bd)
self.vxlan2 = VppVxlanTunnel(self,
src=self.pg0.local_ip6,
dst=self.pg0.remote_ip6,
vni=self.single_tunnel_bd)
self.ipip4 = VppIpIpTunInterface(self, self.pg0, self.pg0.local_ip4,
self.pg0.remote_ip4)
self.ipip6 = VppIpIpTunInterface(self, self.pg0, self.pg0.local_ip6,
self.pg0.remote_ip6)
def tearDown(self):
super(TestGSO, self).tearDown()
if not self.vpp_dead:
for i in self.pg_interfaces:
i.unconfig_ip4()
i.unconfig_ip6()
i.admin_down()
def test_gso(self):
""" GSO test """
#
# Send jumbo frame with gso disabled and DF bit is set
#
p4 = (
Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg0, [p4], self.pg0)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assertEqual(rx[ICMP].type, 3) # "dest-unreach"
self.assertEqual(rx[ICMP].code, 4) # "fragmentation-needed"
#
# Send checksum offload frames
#
p40 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_ip4, dst=self.pg0.remote_ip4, flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 1460))
rxs = self.send_and_expect(self.pg2, 100 * [p40], self.pg0)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
payload_len = rx[IP].len - 20 - 20
self.assert_ip_checksum_valid(rx)
self.assert_tcp_checksum_valid(rx)
self.assertEqual(payload_len, len(rx[Raw]))
p60 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IPv6(src=self.pg2.remote_ip6, dst=self.pg0.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 1440))
rxs = self.send_and_expect(self.pg2, 100 * [p60], self.pg0)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
payload_len = rx[IPv6].plen - 20
self.assert_tcp_checksum_valid(rx)
self.assertEqual(payload_len, len(rx[Raw]))
#
# Send jumbo frame with gso enabled and DF bit is set
# input and output interfaces support GSO
#
self.vapi.feature_gso_enable_disable(self.pg3.sw_if_index)
p41 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4, flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 100 * [p41], self.pg3, 100)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg3.local_mac)
self.assertEqual(rx[Ether].dst, self.pg3.remote_mac)
self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg3.remote_ip4)
self.assertEqual(rx[IP].len, 65240) # 65200 + 20 (IP) + 20 (TCP)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
#
# ipv6
#
p61 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IPv6(src=self.pg2.remote_ip6, dst=self.pg3.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 100 * [p61], self.pg3, 100)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg3.local_mac)
self.assertEqual(rx[Ether].dst, self.pg3.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg3.remote_ip6)
self.assertEqual(rx[IPv6].plen, 65220) # 65200 + 20 (TCP)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
#
# Send jumbo frame with gso enabled only on input interface
# and DF bit is set. GSO packet will be chunked into gso_size
# data payload
#
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
p42 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_ip4, dst=self.pg0.remote_ip4, flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p42], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
payload_len = rx[IP].len - 20 - 20 # len - 20 (IP4) - 20 (TCP)
self.assert_ip_checksum_valid(rx)
self.assert_tcp_checksum_valid(rx)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
self.assertEqual(payload_len, len(rx[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# ipv6
#
p62 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IPv6(src=self.pg2.remote_ip6, dst=self.pg0.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p62], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
payload_len = rx[IPv6].plen - 20
self.assert_tcp_checksum_valid(rx)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
self.assertEqual(payload_len, len(rx[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# Send jumbo frame with gso enabled only on input interface
# and DF bit is unset. GSO packet will be fragmented.
#
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [576, 0, 0, 0])
self.vapi.feature_gso_enable_disable(self.pg1.sw_if_index)
p43 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_ip4, dst=self.pg1.remote_ip4) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p43], self.pg1, 5 * 119)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg1.local_mac)
self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg1.remote_ip4)
self.assert_ip_checksum_valid(rx)
size += rx[IP].len - 20
size -= 20 * 5 # TCP header
self.assertEqual(size, 65200 * 5)
#
# IPv6
# Send jumbo frame with gso enabled only on input interface.
# ICMPv6 Packet Too Big will be sent back to sender.
#
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1280, 0, 0, 0])
p63 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IPv6(src=self.pg2.remote_ip6, dst=self.pg1.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p63], self.pg2, 5)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg2.local_mac)
self.assertEqual(rx[Ether].dst, self.pg2.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg2.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg2.remote_ip6)
self.assertEqual(rx[IPv6].plen, 1240) # MTU - IPv6 header
self.assertEqual(ipv6nh[rx[IPv6].nh], "ICMPv6")
self.assertEqual(rx[ICMPv6PacketTooBig].mtu, 1280)
self.assertEqual(rx[IPerror6].src, self.pg2.remote_ip6)
self.assertEqual(rx[IPerror6].dst, self.pg1.remote_ip6)
self.assertEqual(rx[IPerror6].plen - 20, 65200)
#
# Send jumbo frame with gso enabled only on input interface with 9K MTU
# and DF bit is unset. GSO packet will be fragmented. MSS is 8960. GSO
# size will be min(MSS, 2048 - 14 - 20) vlib_buffer_t size
#
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
self.vapi.sw_interface_set_mtu(self.pg4.sw_if_index, [9000, 0, 0, 0])
p44 = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) /
IP(src=self.pg4.remote_ip4, dst=self.pg1.remote_ip4) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg4, 5 * [p44], self.pg1, 165)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg1.local_mac)
self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
self.assertEqual(rx[IP].src, self.pg4.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg1.remote_ip4)
payload_len = rx[IP].len - 20 - 20 # len - 20 (IP4) - 20 (TCP)
self.assert_ip_checksum_valid(rx)
self.assert_tcp_checksum_valid(rx)
self.assertEqual(payload_len, len(rx[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# IPv6
#
p64 = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) /
IPv6(src=self.pg4.remote_ip6, dst=self.pg1.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg4, 5 * [p64], self.pg1, 170)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg1.local_mac)
self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg4.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg1.remote_ip6)
payload_len = rx[IPv6].plen - 20
self.assert_tcp_checksum_valid(rx)
self.assertEqual(payload_len, len(rx[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
enable_disable=0)
self.vapi.feature_gso_enable_disable(self.pg1.sw_if_index,
enable_disable=0)
def test_gso_vxlan(self):
""" GSO VXLAN test """
self.logger.info(self.vapi.cli("sh int addr"))
#
# Send jumbo frame with gso enabled only on input interface and
# create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg2
# into BD.
#
#
# enable ipv4/vxlan
#
self.vxlan.add_vpp_config()
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.vxlan.sw_if_index, bd_id=self.single_tunnel_bd)
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.pg2.sw_if_index, bd_id=self.single_tunnel_bd)
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
#
# IPv4/IPv4 - VXLAN
#
p45 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IP(src=self.pg2.remote_ip4, dst="172.16.3.3", flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p45], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assert_ip_checksum_valid(rx)
self.assert_udp_checksum_valid(rx)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(rx[IP].len - 20 - 8 - 8, len(inner))
self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.3.3")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# IPv4/IPv6 - VXLAN
#
p65 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IPv6(src=self.pg2.remote_ip6, dst="fd01:3::3") /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p65], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assert_ip_checksum_valid(rx)
self.assert_udp_checksum_valid(rx)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(rx[IP].len - 20 - 8 - 8, len(inner))
self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:3::3")
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IPv6].plen - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# disable ipv4/vxlan
#
self.vxlan.remove_vpp_config()
#
# enable ipv6/vxlan
#
self.vxlan2.add_vpp_config()
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.vxlan2.sw_if_index,
bd_id=self.single_tunnel_bd)
#
# IPv6/IPv4 - VXLAN
#
p46 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IP(src=self.pg2.remote_ip4, dst="172.16.3.3", flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p46], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assert_udp_checksum_valid(rx)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(rx[IPv6].plen - 8 - 8, len(inner))
self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.3.3")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# IPv6/IPv6 - VXLAN
#
p66 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IPv6(src=self.pg2.remote_ip6, dst="fd01:3::3") /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p66], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assert_udp_checksum_valid(rx)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(rx[IPv6].plen - 8 - 8, len(inner))
self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:3::3")
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IPv6].plen - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# disable ipv4/vxlan
#
self.vxlan2.remove_vpp_config()
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
enable_disable=0)
def test_gso_ipip(self):
""" GSO IPIP test """
self.logger.info(self.vapi.cli("sh int addr"))
#
# Send jumbo frame with gso enabled only on input interface and
# create IPIP tunnel on VPP pg0.
#
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
#
# enable ipip4
#
self.ipip4.add_vpp_config()
# Set interface up and enable IP on it
self.ipip4.admin_up()
self.ipip4.set_unnumbered(self.pg0.sw_if_index)
# Add IPv4 routes via tunnel interface
self.ip4_via_ip4_tunnel = VppIpRoute(self, "172.16.10.0", 24, [
VppRoutePath("0.0.0.0",
self.ipip4.sw_if_index,
proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)
])
self.ip4_via_ip4_tunnel.add_vpp_config()
#
# IPv4/IPv4 - IPIP
#
p47 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p47], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assert_ip_checksum_valid(rx)
self.assertEqual(rx[IP].proto, 4) # ipencap
inner = rx[IP].payload
self.assertEqual(rx[IP].len - 20, len(inner))
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.10.3")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
self.ip6_via_ip4_tunnel = VppIpRoute(self, "fd01:10::", 64, [
VppRoutePath("::",
self.ipip4.sw_if_index,
proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)
])
self.ip6_via_ip4_tunnel.add_vpp_config()
#
# IPv4/IPv6 - IPIP
#
p67 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p67], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assert_ip_checksum_valid(rx)
self.assertEqual(rx[IP].proto, 41) # ipv6
inner = rx[IP].payload
self.assertEqual(rx[IP].len - 20, len(inner))
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:10::3")
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IPv6].plen - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# Send jumbo frame with gso enabled only on input interface and
# create IPIP tunnel on VPP pg0. Enable gso feature node on ipip
# tunnel - IPSec use case
#
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
enable_disable=0)
self.vapi.feature_gso_enable_disable(self.ipip4.sw_if_index)
rxs = self.send_and_expect(self.pg2, 5 * [p47], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assert_ip_checksum_valid(rx)
self.assertEqual(rx[IP].proto, 4) # ipencap
inner = rx[IP].payload
self.assertEqual(rx[IP].len - 20, len(inner))
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.10.3")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# disable ipip4
#
self.vapi.feature_gso_enable_disable(self.ipip4.sw_if_index,
enable_disable=0)
self.ip4_via_ip4_tunnel.remove_vpp_config()
self.ip6_via_ip4_tunnel.remove_vpp_config()
self.ipip4.remove_vpp_config()
#
# enable ipip6
#
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
self.ipip6.add_vpp_config()
# Set interface up and enable IP on it
self.ipip6.admin_up()
self.ipip6.set_unnumbered(self.pg0.sw_if_index)
# Add IPv4 routes via tunnel interface
self.ip4_via_ip6_tunnel = VppIpRoute(self, "172.16.10.0", 24, [
VppRoutePath("0.0.0.0",
self.ipip6.sw_if_index,
proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)
])
self.ip4_via_ip6_tunnel.add_vpp_config()
#
# IPv6/IPv4 - IPIP
#
p48 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p48], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assertEqual(ipv6nh[rx[IPv6].nh], "IP")
inner = rx[IPv6].payload
self.assertEqual(rx[IPv6].plen, len(inner))
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.10.3")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
self.ip6_via_ip6_tunnel = VppIpRoute(self, "fd01:10::", 64, [
VppRoutePath("::",
self.ipip6.sw_if_index,
proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)
])
self.ip6_via_ip6_tunnel.add_vpp_config()
#
# IPv6/IPv6 - IPIP
#
p68 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, 5 * [p68], self.pg0, 225)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assertEqual(ipv6nh[rx[IPv6].nh], "IPv6")
inner = rx[IPv6].payload
self.assertEqual(rx[IPv6].plen, len(inner))
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:10::3")
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IPv6].plen - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# disable ipip6
#
self.ip4_via_ip6_tunnel.remove_vpp_config()
self.ip6_via_ip6_tunnel.remove_vpp_config()
self.ipip6.remove_vpp_config()
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
enable_disable=0)
class TestGSO(VppTestCase):
""" GSO Test Case """
def __init__(self, *args):
VppTestCase.__init__(self, *args)
@classmethod
def setUpClass(self):
super(TestGSO, self).setUpClass()
res = self.create_pg_interfaces(range(2))
res_gso = self.create_pg_interfaces(range(2, 4), 1, 1460)
self.create_pg_interfaces(range(4, 5), 1, 8940)
self.pg_interfaces.append(res[0])
self.pg_interfaces.append(res[1])
self.pg_interfaces.append(res_gso[0])
self.pg_interfaces.append(res_gso[1])
@classmethod
def tearDownClass(self):
super(TestGSO, self).tearDownClass()
def setUp(self):
super(TestGSO, self).setUp()
for i in self.pg_interfaces:
i.admin_up()
i.config_ip4()
i.config_ip6()
i.disable_ipv6_ra()
i.resolve_arp()
i.resolve_ndp()
self.single_tunnel_bd = 10
self.vxlan = VppVxlanTunnel(self,
src=self.pg0.local_ip4,
dst=self.pg0.remote_ip4,
vni=self.single_tunnel_bd)
self.vxlan.add_vpp_config()
self.vxlan2 = VppVxlanTunnel(self,
src=self.pg0.local_ip6,
dst=self.pg0.remote_ip6,
vni=self.single_tunnel_bd)
self.vxlan2.add_vpp_config()
def tearDown(self):
super(TestGSO, self).tearDown()
if not self.vpp_dead:
for i in self.pg_interfaces:
i.unconfig_ip4()
i.unconfig_ip6()
i.admin_down()
def test_gso(self):
""" GSO test """
#
# Send jumbo frame with gso disabled and DF bit is set
#
p4 = (
Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg0, [p4], self.pg0)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assertEqual(rx[ICMP].type, 3) # "dest-unreach"
self.assertEqual(rx[ICMP].code, 4) # "fragmentation-needed"
#
# Send jumbo frame with gso enabled and DF bit is set
# input and output interfaces support GSO
#
p41 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4, flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [p41], self.pg3)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg3.local_mac)
self.assertEqual(rx[Ether].dst, self.pg3.remote_mac)
self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg3.remote_ip4)
self.assertEqual(rx[IP].len, 65240) # 65200 + 20 (IP) + 20 (TCP)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
#
# ipv6
#
p61 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IPv6(src=self.pg2.remote_ip6, dst=self.pg3.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [p61], self.pg3)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg3.local_mac)
self.assertEqual(rx[Ether].dst, self.pg3.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg3.remote_ip6)
self.assertEqual(rx[IPv6].plen, 65220) # 65200 + 20 (TCP)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
#
# Send jumbo frame with gso enabled only on input interface
# and DF bit is set. GSO packet will be chunked into gso_size
# data payload
#
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
p42 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_ip4, dst=self.pg0.remote_ip4, flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [p42], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
size = rxs[44][TCP].seq + rxs[44][IP].len - 20 - 20
self.assertEqual(size, 65200)
#
# ipv6
#
p62 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IPv6(src=self.pg2.remote_ip6, dst=self.pg0.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [p62], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
size = rxs[44][TCP].seq + rxs[44][IPv6].plen - 20
self.assertEqual(size, 65200)
#
# Send jumbo frame with gso enabled only on input interface
# and DF bit is unset. GSO packet will be fragmented.
#
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [576, 0, 0, 0])
self.vapi.feature_gso_enable_disable(self.pg1.sw_if_index)
p43 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IP(src=self.pg2.remote_ip4, dst=self.pg1.remote_ip4) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [p43], self.pg1, 119)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg1.local_mac)
self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg1.remote_ip4)
size += rx[IP].len - 20
size -= 20 # TCP header
self.assertEqual(size, 65200)
#
# IPv6
# Send jumbo frame with gso enabled only on input interface.
# ICMPv6 Packet Too Big will be sent back to sender.
#
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1280, 0, 0, 0])
p63 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
IPv6(src=self.pg2.remote_ip6, dst=self.pg1.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [p63], self.pg2, 1)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg2.local_mac)
self.assertEqual(rx[Ether].dst, self.pg2.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg2.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg2.remote_ip6)
self.assertEqual(rx[IPv6].plen, 1240) # MTU - IPv6 header
self.assertEqual(ipv6nh[rx[IPv6].nh], "ICMPv6")
self.assertEqual(rx[ICMPv6PacketTooBig].mtu, 1280)
self.assertEqual(rx[IPerror6].src, self.pg2.remote_ip6)
self.assertEqual(rx[IPerror6].dst, self.pg1.remote_ip6)
self.assertEqual(rx[IPerror6].plen - 20, 65200)
#
# Send jumbo frame with gso enabled only on input interface with 9K MTU
# and DF bit is unset. GSO packet will be fragmented. MSS is 8960. GSO
# size will be min(MSS, 2048 - 14 - 20) vlib_buffer_t size
#
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
self.vapi.sw_interface_set_mtu(self.pg4.sw_if_index, [9000, 0, 0, 0])
p44 = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) /
IP(src=self.pg4.remote_ip4, dst=self.pg1.remote_ip4) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
self.pg1.enable_capture()
rxs = self.send_and_expect(self.pg4, [p44], self.pg1, 33)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg1.local_mac)
self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
self.assertEqual(rx[IP].src, self.pg4.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg1.remote_ip4)
size = rxs[32][TCP].seq + rxs[32][IP].len - 20 - 20
self.assertEqual(size, 65200)
#
# IPv6
#
p64 = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) /
IPv6(src=self.pg4.remote_ip6, dst=self.pg1.remote_ip6) /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
self.pg1.enable_capture()
rxs = self.send_and_expect(self.pg4, [p64], self.pg1, 34)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg1.local_mac)
self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg4.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg1.remote_ip6)
size = rxs[33][TCP].seq + rxs[33][IPv6].plen - 20
self.assertEqual(size, 65200)
def test_gso_vxlan(self):
""" GSO VXLAN test """
self.logger.info(self.vapi.cli("sh int addr"))
#
# Send jumbo frame with gso enabled only on input interface and
# create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg2
# into BD.
#
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.vxlan.sw_if_index, bd_id=self.single_tunnel_bd)
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.pg2.sw_if_index, bd_id=self.single_tunnel_bd)
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
#
# IPv4/IPv4 - VXLAN
#
p45 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IP(src=self.pg2.remote_ip4, dst="172.16.3.3", flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
self.pg0.enable_capture()
rxs = self.send_and_expect(self.pg2, [p45], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.3.3")
size += inner[IP].len - 20 - 20
self.assertEqual(size, 65200)
#
# IPv4/IPv6 - VXLAN
#
p65 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IPv6(src=self.pg2.remote_ip6, dst="fd01:3::3") /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
self.pg0.enable_capture()
rxs = self.send_and_expect(self.pg2, [p65], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:3::3")
size += inner[IPv6].plen - 20
self.assertEqual(size, 65200)
#
# disable ipv4/vxlan
#
self.vxlan.remove_vpp_config()
#
# enable ipv6/vxlan
#
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.vxlan2.sw_if_index,
bd_id=self.single_tunnel_bd)
#
# IPv6/IPv4 - VXLAN
#
p46 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IP(src=self.pg2.remote_ip4, dst="172.16.3.3", flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
self.pg0.enable_capture()
rxs = self.send_and_expect(self.pg2, [p46], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.3.3")
size += inner[IP].len - 20 - 20
self.assertEqual(size, 65200)
#
# IPv6/IPv6 - VXLAN
#
p66 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IPv6(src=self.pg2.remote_ip6, dst="fd01:3::3") /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
self.pg0.enable_capture()
rxs = self.send_and_expect(self.pg2, [p66], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:3::3")
size += inner[IPv6].plen - 20
self.assertEqual(size, 65200)
