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|
#!/usr/bin/env python
from framework import VppTestCase
from ipaddress import IPv4Address
from ipaddress import IPv6Address
from scapy.contrib.gtp import *
from scapy.all import *
class TestSRv6EndMGTP4E(VppTestCase):
""" SRv6 End.M.GTP4.E (SRv6 -> GTP-U) """
@classmethod
def setUpClass(cls):
super(TestSRv6EndMGTP4E, cls).setUpClass()
try:
cls.create_pg_interfaces(range(2))
cls.pg_if_i = cls.pg_interfaces[0]
cls.pg_if_o = cls.pg_interfaces[1]
cls.pg_if_i.config_ip6()
cls.pg_if_o.config_ip4()
cls.ip4_dst = cls.pg_if_o.remote_ip4
# cls.ip4_src = cls.pg_if_o.local_ip4
cls.ip4_src = "192.168.192.10"
for pg_if in cls.pg_interfaces:
pg_if.admin_up()
pg_if.resolve_arp()
except Exception:
super(TestSRv6EndMGTP4E, cls).tearDownClass()
raise
def create_packets(self, inner):
ip4_dst = IPv4Address(str(self.ip4_dst))
# 32bit prefix + 32bit IPv4 DA + 8bit + 32bit TEID + 24bit
dst = b'\xaa' * 4 + ip4_dst.packed + \
b'\x11' + b'\xbb' * 4 + b'\x11' * 3
ip6_dst = IPv6Address(dst)
ip4_src = IPv4Address(str(self.ip4_src))
# 64bit prefix + 32bit IPv4 SA + 16 bit port + 16bit
src = b'\xcc' * 8 + ip4_src.packed + \
b'\xdd' * 2 + b'\x11' * 2
ip6_src = IPv6Address(src)
self.logger.info("ip4 dst: {}".format(ip4_dst))
self.logger.info("ip4 src: {}".format(ip4_src))
self.logger.info("ip6 dst (remote srgw): {}".format(ip6_dst))
self.logger.info("ip6 src (local srgw): {}".format(ip6_src))
pkts = list()
for d, s in inner:
pkt = (Ether() /
IPv6(dst=str(ip6_dst), src=str(ip6_src)) /
IPv6ExtHdrSegmentRouting() /
IPv6(dst=d, src=s) /
UDP(sport=1000, dport=23))
self.logger.info(pkt.show2(dump=True))
pkts.append(pkt)
return pkts
def test_srv6_mobile(self):
""" test_srv6_mobile """
pkts = self.create_packets([("A::1", "B::1"), ("C::1", "D::1")])
self.vapi.cli(
"sr localsid address {} behavior end.m.gtp4.e v4src_position 64"
.format(pkts[0]['IPv6'].dst))
self.logger.info(self.vapi.cli("show sr localsids"))
self.vapi.cli("clear errors")
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.logger.info(self.vapi.cli("show errors"))
self.logger.info(self.vapi.cli("show int address"))
capture = self.pg1.get_capture(len(pkts))
for pkt in capture:
self.logger.info(pkt.show2(dump=True))
self.assertEqual(pkt[IP].dst, self.ip4_dst)
self.assertEqual(pkt[IP].src, self.ip4_src)
self.assertEqual(pkt[GTP_U_Header].teid, 0xbbbbbbbb)
class TestSRv6TMGTP4D(VppTestCase):
""" SRv6 T.M.GTP4.D (GTP-U -> SRv6) """
@classmethod
def setUpClass(cls):
super(TestSRv6TMGTP4D, cls).setUpClass()
try:
cls.create_pg_interfaces(range(2))
cls.pg_if_i = cls.pg_interfaces[0]
cls.pg_if_o = cls.pg_interfaces[1]
cls.pg_if_i.config_ip4()
cls.pg_if_i.config_ip6()
cls.pg_if_o.config_ip4()
cls.pg_if_o.config_ip6()
cls.ip4_dst = "1.1.1.1"
cls.ip4_src = "2.2.2.2"
cls.ip6_dst = cls.pg_if_o.remote_ip6
for pg_if in cls.pg_interfaces:
pg_if.admin_up()
pg_if.resolve_arp()
pg_if.resolve_ndp(timeout=5)
except Exception:
super(TestSRv6TMGTP4D, cls).tearDownClass()
raise
def create_packets(self, inner):
ip4_dst = IPv4Address(str(self.ip4_dst))
ip4_src = IPv4Address(str(self.ip4_src))
self.logger.info("ip4 dst: {}".format(ip4_dst))
self.logger.info("ip4 src: {}".format(ip4_src))
pkts = list()
for d, s in inner:
pkt = (Ether() /
IP(dst=str(ip4_dst), src=str(ip4_src)) /
UDP(sport=2152, dport=2152) /
GTP_U_Header(gtp_type="g_pdu", teid=200) /
IPv6(dst=d, src=s) /
UDP(sport=1000, dport=23))
self.logger.info(pkt.show2(dump=True))
pkts.append(pkt)
return pkts
def test_srv6_mobile(self):
""" test_srv6_mobile """
pkts = self.create_packets([("A::1", "B::1"), ("C::1", "D::1")])
self.vapi.cli("set sr encaps source addr A1::1")
self.vapi.cli("sr policy add bsid D4:: next D2:: next D3::")
self.vapi.cli(
"sr policy add bsid D5:: behavior t.m.gtp4.d"
"D4::/32 v6src_prefix C1::/64 nhtype ipv6")
self.vapi.cli("sr steer l3 {}/32 via bsid D5::".format(self.ip4_dst))
self.vapi.cli("ip route add D2::/32 via {}".format(self.ip6_dst))
self.logger.info(self.vapi.cli("show sr steer"))
self.logger.info(self.vapi.cli("show sr policies"))
self.vapi.cli("clear errors")
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.logger.info(self.vapi.cli("show errors"))
self.logger.info(self.vapi.cli("show int address"))
capture = self.pg1.get_capture(len(pkts))
for pkt in capture:
self.logger.info(pkt.show2(dump=True))
self.logger.info("GTP4.D Address={}".format(
str(pkt[IPv6ExtHdrSegmentRouting].addresses[0])))
self.assertEqual(
str(pkt[IPv6ExtHdrSegmentRouting].addresses[0]),
"d4:0:101:101::c800:0")
class TestSRv6EndMGTP6E(VppTestCase):
""" SRv6 End.M.GTP6.E """
@classmethod
def setUpClass(cls):
super(TestSRv6EndMGTP6E, cls).setUpClass()
try:
cls.create_pg_interfaces(range(2))
cls.pg_if_i = cls.pg_interfaces[0]
cls.pg_if_o = cls.pg_interfaces[1]
cls.pg_if_i.config_ip6()
cls.pg_if_o.config_ip6()
cls.ip6_nhop = cls.pg_if_o.remote_ip6
for pg_if in cls.pg_interfaces:
pg_if.admin_up()
pg_if.resolve_ndp(timeout=5)
except Exception:
super(TestSRv6EndMGTP6E, cls).tearDownClass()
raise
def create_packets(self, inner):
# 64bit prefix + 32bit TEID + 8bit QFI + 24bit
dst = b'\xaa' * 8 + b'\x00' + \
b'\xbb' * 4 + b'\x00' * 3
ip6_dst = IPv6Address(dst)
self.ip6_dst = ip6_dst
src = b'\xcc' * 8 + \
b'\xdd' * 4 + b'\x11' * 4
ip6_src = IPv6Address(src)
self.ip6_src = ip6_src
pkts = list()
for d, s in inner:
pkt = (Ether() /
IPv6(dst=str(ip6_dst),
src=str(ip6_src)) /
IPv6ExtHdrSegmentRouting(segleft=1,
lastentry=0,
tag=0,
addresses=["a1::1"]) /
IPv6(dst=d, src=s) / UDP(sport=1000, dport=23))
self.logger.info(pkt.show2(dump=True))
pkts.append(pkt)
return pkts
def test_srv6_mobile(self):
""" test_srv6_mobile """
pkts = self.create_packets([("A::1", "B::1"), ("C::1", "D::1")])
self.vapi.cli(
"sr localsid address {}/64 behavior end.m.gtp6.e"
.format(pkts[0]['IPv6'].dst))
self.vapi.cli(
"ip route add a1::/64 via {}".format(self.ip6_nhop))
self.logger.info(self.vapi.cli("show sr localsids"))
self.vapi.cli("clear errors")
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.logger.info(self.vapi.cli("show errors"))
self.logger.info(self.vapi.cli("show int address"))
capture = self.pg1.get_capture(len(pkts))
for pkt in capture:
self.logger.info(pkt.show2(dump=True))
self.assertEqual(pkt[IPv6].dst, "a1::1")
self.assertEqual(pkt[IPv6].src, str(self.ip6_src))
self.assertEqual(pkt[GTP_U_Header].teid, 0xbbbbbbbb)
class TestSRv6EndMGTP6D(VppTestCase):
""" SRv6 End.M.GTP6.D """
@classmethod
def setUpClass(cls):
super(TestSRv6EndMGTP6D, cls).setUpClass()
try:
cls.create_pg_interfaces(range(2))
cls.pg_if_i = cls.pg_interfaces[0]
cls.pg_if_o = cls.pg_interfaces[1]
cls.pg_if_i.config_ip6()
cls.pg_if_o.config_ip6()
cls.ip6_nhop = cls.pg_if_o.remote_ip6
cls.ip6_dst = "2001::1"
cls.ip6_src = "2002::1"
for pg_if in cls.pg_interfaces:
pg_if.admin_up()
pg_if.resolve_ndp(timeout=5)
except Exception:
super(TestSRv6EndMGTP6D, cls).tearDownClass()
raise
def create_packets(self, inner):
ip6_dst = IPv6Address(str(self.ip6_dst))
ip6_src = IPv6Address(str(self.ip6_src))
self.logger.info("ip6 dst: {}".format(ip6_dst))
self.logger.info("ip6 src: {}".format(ip6_src))
pkts = list()
for d, s in inner:
pkt = (Ether() /
IPv6(dst=str(ip6_dst), src=str(ip6_src)) /
UDP(sport=2152, dport=2152) /
GTP_U_Header(gtp_type="g_pdu", teid=200) /
IPv6(dst=d, src=s) /
UDP(sport=1000, dport=23))
self.logger.info(pkt.show2(dump=True))
pkts.append(pkt)
return pkts
def test_srv6_mobile(self):
""" test_srv6_mobile """
pkts = self.create_packets([("A::1", "B::1"), ("C::1", "D::1")])
self.vapi.cli("set sr encaps source addr A1::1")
self.vapi.cli("sr policy add bsid D4:: next D2:: next D3::")
self.vapi.cli(
"sr localsid address 2001::/64 behavior end.m.gtp6.d D4::/64")
self.vapi.cli("ip route add D2::/64 via {}".format(self.ip6_nhop))
self.logger.info(self.vapi.cli("show sr policies"))
self.vapi.cli("clear errors")
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.logger.info(self.vapi.cli("show errors"))
self.logger.info(self.vapi.cli("show int address"))
capture = self.pg1.get_capture(len(pkts))
for pkt in capture:
self.logger.info(pkt.show2(dump=True))
self.logger.info("GTP6.D Address={}".format(
str(pkt[IPv6ExtHdrSegmentRouting].addresses[0])))
self.assertEqual(
str(pkt[IPv6ExtHdrSegmentRouting].addresses[0]), "d4::c800:0")
|
