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authorDave Wallace <dwallacelf@gmail.com>2019-08-22 00:32:29 +0000
committerDave Wallace <dwallacelf@gmail.com>2019-08-23 17:31:08 -0400
commit9e25c7723d96412a139d4f1b73f9fad020f3e7a9 (patch)
tree1a39ac7b3965afbfa25ffd9f9f2437bab0c7a7f8 /src/plugins/srv6-ad
parent46441cb9cde2044c4e3e743d69418cecc897a63a (diff)
tests: move plugin tests to src/plugins/*/test
- Relocate plugin tests for 'make test' into src/plugins/*/test so that plugin test cases are co-located with the plugin source code. Type: refactor Ticket: VPP-1754 Signed-off-by: Dave Wallace <dwallacelf@gmail.com> Change-Id: I503e6a43528e14981799b735fa65674155713f67 (cherry picked from commit a43c93f8554ad7418e31be3791b3fb71232f60ac)
Diffstat (limited to 'src/plugins/srv6-ad')
-rw-r--r--src/plugins/srv6-ad/test/test_srv6_ad.py811
-rw-r--r--src/plugins/srv6-ad/test/vpp_srv6.py222
2 files changed, 1033 insertions, 0 deletions
diff --git a/src/plugins/srv6-ad/test/test_srv6_ad.py b/src/plugins/srv6-ad/test/test_srv6_ad.py
new file mode 100644
index 00000000000..aa4b8d3c088
--- /dev/null
+++ b/src/plugins/srv6-ad/test/test_srv6_ad.py
@@ -0,0 +1,811 @@
+#!/usr/bin/env python
+
+import unittest
+import binascii
+from socket import AF_INET6
+
+from framework import VppTestCase, VppTestRunner
+from vpp_ip import DpoProto
+from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable
+from vpp_srv6 import SRv6LocalSIDBehaviors, VppSRv6LocalSID, VppSRv6Policy, \
+ SRv6PolicyType, VppSRv6Steering, SRv6PolicySteeringTypes
+
+import scapy.compat
+from scapy.packet import Raw
+from scapy.layers.l2 import Ether, Dot1Q
+from scapy.layers.inet6 import IPv6, UDP, IPv6ExtHdrSegmentRouting
+from scapy.layers.inet import IP, UDP
+
+from scapy.utils import inet_pton, inet_ntop
+
+from util import ppp
+
+
+class TestSRv6(VppTestCase):
+ """ SRv6 Dynamic Proxy plugin Test Case """
+
+ @classmethod
+ def setUpClass(self):
+ super(TestSRv6, self).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestSRv6, cls).tearDownClass()
+
+ def setUp(self):
+ """ Perform test setup before each test case.
+ """
+ super(TestSRv6, self).setUp()
+
+ # packet sizes, inclusive L2 overhead
+ self.pg_packet_sizes = [64, 512, 1518, 9018]
+
+ # reset packet_infos
+ self.reset_packet_infos()
+
+ def tearDown(self):
+ """ Clean up test setup after each test case.
+ """
+ self.teardown_interfaces()
+
+ super(TestSRv6, self).tearDown()
+
+ def configure_interface(self,
+ interface,
+ ipv6=False, ipv4=False,
+ ipv6_table_id=0, ipv4_table_id=0):
+ """ Configure interface.
+ :param ipv6: configure IPv6 on interface
+ :param ipv4: configure IPv4 on interface
+ :param ipv6_table_id: FIB table_id for IPv6
+ :param ipv4_table_id: FIB table_id for IPv4
+ """
+ self.logger.debug("Configuring interface %s" % (interface.name))
+ if ipv6:
+ self.logger.debug("Configuring IPv6")
+ interface.set_table_ip6(ipv6_table_id)
+ interface.config_ip6()
+ interface.resolve_ndp(timeout=5)
+ if ipv4:
+ self.logger.debug("Configuring IPv4")
+ interface.set_table_ip4(ipv4_table_id)
+ interface.config_ip4()
+ interface.resolve_arp()
+ interface.admin_up()
+
+ def setup_interfaces(self, ipv6=[], ipv4=[],
+ ipv6_table_id=[], ipv4_table_id=[]):
+ """ Create and configure interfaces.
+
+ :param ipv6: list of interface IPv6 capabilities
+ :param ipv4: list of interface IPv4 capabilities
+ :param ipv6_table_id: list of intf IPv6 FIB table_ids
+ :param ipv4_table_id: list of intf IPv4 FIB table_ids
+ :returns: List of created interfaces.
+ """
+ # how many interfaces?
+ if len(ipv6):
+ count = len(ipv6)
+ else:
+ count = len(ipv4)
+ self.logger.debug("Creating and configuring %d interfaces" % (count))
+
+ # fill up ipv6 and ipv4 lists if needed
+ # not enabled (False) is the default
+ if len(ipv6) < count:
+ ipv6 += (count - len(ipv6)) * [False]
+ if len(ipv4) < count:
+ ipv4 += (count - len(ipv4)) * [False]
+
+ # fill up table_id lists if needed
+ # table_id 0 (global) is the default
+ if len(ipv6_table_id) < count:
+ ipv6_table_id += (count - len(ipv6_table_id)) * [0]
+ if len(ipv4_table_id) < count:
+ ipv4_table_id += (count - len(ipv4_table_id)) * [0]
+
+ # create 'count' pg interfaces
+ self.create_pg_interfaces(range(count))
+
+ # setup all interfaces
+ for i in range(count):
+ intf = self.pg_interfaces[i]
+ self.configure_interface(intf,
+ ipv6[i], ipv4[i],
+ ipv6_table_id[i], ipv4_table_id[i])
+
+ if any(ipv6):
+ self.logger.debug(self.vapi.cli("show ip6 neighbors"))
+ if any(ipv4):
+ self.logger.debug(self.vapi.cli("show ip arp"))
+ self.logger.debug(self.vapi.cli("show interface"))
+ self.logger.debug(self.vapi.cli("show hardware"))
+
+ return self.pg_interfaces
+
+ def teardown_interfaces(self):
+ """ Unconfigure and bring down interface.
+ """
+ self.logger.debug("Tearing down interfaces")
+ # tear down all interfaces
+ # AFAIK they cannot be deleted
+ for i in self.pg_interfaces:
+ self.logger.debug("Tear down interface %s" % (i.name))
+ i.admin_down()
+ i.unconfig()
+ i.set_table_ip4(0)
+ i.set_table_ip6(0)
+
+ def test_SRv6_End_AD_IPv6(self):
+ """ Test SRv6 End.AD behavior with IPv6 traffic.
+ """
+ self.src_addr = 'a0::'
+ self.sid_list = ['a1::', 'a2::a6', 'a3::']
+ self.test_sid_index = 1
+
+ # send traffic to one destination interface
+ # source and destination interfaces are IPv6 only
+ self.setup_interfaces(ipv6=[True, True])
+
+ # configure route to next segment
+ route = VppIpRoute(self, self.sid_list[self.test_sid_index + 1], 128,
+ [VppRoutePath(self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ proto=DpoProto.DPO_PROTO_IP6)])
+ route.add_vpp_config()
+
+ # configure SRv6 localSID behavior
+ cli_str = "sr localsid address " + \
+ self.sid_list[self.test_sid_index] + \
+ " behavior end.ad" + \
+ " nh " + self.pg1.remote_ip6 + \
+ " oif " + self.pg1.name + \
+ " iif " + self.pg1.name
+ self.vapi.cli(cli_str)
+
+ # log the localsids
+ self.logger.debug(self.vapi.cli("show sr localsid"))
+
+ # send one packet per packet size
+ count = len(self.pg_packet_sizes)
+
+ # prepare IPv6 in SRv6 headers
+ packet_header1 = self.create_packet_header_IPv6_SRH_IPv6(
+ srcaddr=self.src_addr,
+ sidlist=self.sid_list[::-1],
+ segleft=len(self.sid_list) - self.test_sid_index - 1)
+
+ # generate packets (pg0->pg1)
+ pkts1 = self.create_stream(self.pg0, self.pg1, packet_header1,
+ self.pg_packet_sizes, count)
+
+ # send packets and verify received packets
+ self.send_and_verify_pkts(self.pg0, pkts1, self.pg1,
+ self.compare_rx_tx_packet_End_AD_IPv6_out)
+
+ # log the localsid counters
+ self.logger.info(self.vapi.cli("show sr localsid"))
+
+ # prepare IPv6 header for returning packets
+ packet_header2 = self.create_packet_header_IPv6()
+
+ # generate returning packets (pg1->pg0)
+ pkts2 = self.create_stream(self.pg1, self.pg0, packet_header2,
+ self.pg_packet_sizes, count)
+
+ # send packets and verify received packets
+ self.send_and_verify_pkts(self.pg1, pkts2, self.pg0,
+ self.compare_rx_tx_packet_End_AD_IPv6_in)
+
+ # log the localsid counters
+ self.logger.info(self.vapi.cli("show sr localsid"))
+
+ # remove SRv6 localSIDs
+ cli_str = "sr localsid del address " + \
+ self.sid_list[self.test_sid_index]
+ self.vapi.cli(cli_str)
+
+ # cleanup interfaces
+ self.teardown_interfaces()
+
+ def compare_rx_tx_packet_End_AD_IPv6_out(self, tx_pkt, rx_pkt):
+ """ Compare input and output packet after passing End.AD with IPv6
+
+ :param tx_pkt: transmitted packet
+ :param rx_pkt: received packet
+ """
+
+ # get first (outer) IPv6 header of rx'ed packet
+ rx_ip = rx_pkt.getlayer(IPv6)
+
+ tx_ip = tx_pkt.getlayer(IPv6)
+ tx_ip2 = tx_pkt.getlayer(IPv6, 2)
+
+ # verify if rx'ed packet has no SRH
+ self.assertFalse(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
+
+ # the whole rx_ip pkt should be equal to tx_ip2
+ # except for the hlim field
+ # -> adjust tx'ed hlim to expected hlim
+ tx_ip2.hlim = tx_ip2.hlim - 1
+
+ self.assertEqual(rx_ip, tx_ip2)
+
+ self.logger.debug("packet verification: SUCCESS")
+
+ def compare_rx_tx_packet_End_AD_IPv6_in(self, tx_pkt, rx_pkt):
+ """ Compare input and output packet after passing End.AD
+
+ :param tx_pkt: transmitted packet
+ :param rx_pkt: received packet
+ """
+
+ # get first (outer) IPv6 header of rx'ed packet
+ rx_ip = rx_pkt.getlayer(IPv6)
+ # received ip.src should be equal to SR Policy source
+ self.assertEqual(rx_ip.src, self.src_addr)
+ # received ip.dst should be equal to expected sidlist next segment
+ self.assertEqual(rx_ip.dst, self.sid_list[self.test_sid_index + 1])
+
+ # rx'ed packet should have SRH
+ self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
+
+ # get SRH
+ rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
+ # rx'ed seglist should be equal to SID-list in reversed order
+ self.assertEqual(rx_srh.addresses, self.sid_list[::-1])
+ # segleft should be equal to previous segleft value minus 1
+ self.assertEqual(rx_srh.segleft,
+ len(self.sid_list) - self.test_sid_index - 2)
+ # lastentry should be equal to the SID-list length minus 1
+ self.assertEqual(rx_srh.lastentry, len(self.sid_list) - 1)
+
+ # the whole rx'ed pkt beyond SRH should be equal to tx'ed pkt
+ # except for the hop-limit field
+ tx_ip = tx_pkt.getlayer(IPv6)
+ # -> update tx'ed hlim to the expected hlim
+ tx_ip.hlim -= 1
+ # -> check payload
+ self.assertEqual(rx_srh.payload, tx_ip)
+
+ self.logger.debug("packet verification: SUCCESS")
+
+ def test_SRv6_End_AD_IPv4(self):
+ """ Test SRv6 End.AD behavior with IPv4 traffic.
+ """
+ self.src_addr = 'a0::'
+ self.sid_list = ['a1::', 'a2::a4', 'a3::']
+ self.test_sid_index = 1
+
+ # send traffic to one destination interface
+ # source and destination interfaces are IPv6 only
+ self.setup_interfaces(ipv6=[True, False], ipv4=[False, True])
+
+ # configure route to next segment
+ route = VppIpRoute(self, self.sid_list[self.test_sid_index + 1], 128,
+ [VppRoutePath(self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ proto=DpoProto.DPO_PROTO_IP6)])
+ route.add_vpp_config()
+
+ # configure SRv6 localSID behavior
+ cli_str = "sr localsid address " + \
+ self.sid_list[self.test_sid_index] + \
+ " behavior end.ad" + \
+ " nh " + self.pg1.remote_ip4 + \
+ " oif " + self.pg1.name + \
+ " iif " + self.pg1.name
+ self.vapi.cli(cli_str)
+
+ # log the localsids
+ self.logger.debug(self.vapi.cli("show sr localsid"))
+
+ # send one packet per packet size
+ count = len(self.pg_packet_sizes)
+
+ # prepare IPv4 in SRv6 headers
+ packet_header1 = self.create_packet_header_IPv6_SRH_IPv4(
+ srcaddr=self.src_addr,
+ sidlist=self.sid_list[::-1],
+ segleft=len(self.sid_list) - self.test_sid_index - 1)
+
+ # generate packets (pg0->pg1)
+ pkts1 = self.create_stream(self.pg0, self.pg1, packet_header1,
+ self.pg_packet_sizes, count)
+
+ # send packets and verify received packets
+ self.send_and_verify_pkts(self.pg0, pkts1, self.pg1,
+ self.compare_rx_tx_packet_End_AD_IPv4_out)
+
+ # log the localsid counters
+ self.logger.info(self.vapi.cli("show sr localsid"))
+
+ # prepare IPv6 header for returning packets
+ packet_header2 = self.create_packet_header_IPv4()
+
+ # generate returning packets (pg1->pg0)
+ pkts2 = self.create_stream(self.pg1, self.pg0, packet_header2,
+ self.pg_packet_sizes, count)
+
+ # send packets and verify received packets
+ self.send_and_verify_pkts(self.pg1, pkts2, self.pg0,
+ self.compare_rx_tx_packet_End_AD_IPv4_in)
+
+ # log the localsid counters
+ self.logger.info(self.vapi.cli("show sr localsid"))
+
+ # remove SRv6 localSIDs
+ cli_str = "sr localsid del address " + \
+ self.sid_list[self.test_sid_index]
+ self.vapi.cli(cli_str)
+
+ # cleanup interfaces
+ self.teardown_interfaces()
+
+ def compare_rx_tx_packet_End_AD_IPv4_out(self, tx_pkt, rx_pkt):
+ """ Compare input and output packet after passing End.AD with IPv4
+
+ :param tx_pkt: transmitted packet
+ :param rx_pkt: received packet
+ """
+
+ # get IPv4 header of rx'ed packet
+ rx_ip = rx_pkt.getlayer(IP)
+
+ tx_ip = tx_pkt.getlayer(IPv6)
+ tx_ip2 = tx_pkt.getlayer(IP)
+
+ # verify if rx'ed packet has no SRH
+ self.assertFalse(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
+
+ # the whole rx_ip pkt should be equal to tx_ip2
+ # except for the ttl field and ip checksum
+ # -> adjust tx'ed ttl to expected ttl
+ tx_ip2.ttl = tx_ip2.ttl - 1
+ # -> set tx'ed ip checksum to None and let scapy recompute
+ tx_ip2.chksum = None
+ # read back the pkt (with str()) to force computing these fields
+ # probably other ways to accomplish this are possible
+ tx_ip2 = IP(scapy.compat.raw(tx_ip2))
+
+ self.assertEqual(rx_ip, tx_ip2)
+
+ self.logger.debug("packet verification: SUCCESS")
+
+ def compare_rx_tx_packet_End_AD_IPv4_in(self, tx_pkt, rx_pkt):
+ """ Compare input and output packet after passing End.AD
+
+ :param tx_pkt: transmitted packet
+ :param rx_pkt: received packet
+ """
+
+ # get first (outer) IPv6 header of rx'ed packet
+ rx_ip = rx_pkt.getlayer(IPv6)
+ # received ip.src should be equal to SR Policy source
+ self.assertEqual(rx_ip.src, self.src_addr)
+ # received ip.dst should be equal to expected sidlist next segment
+ self.assertEqual(rx_ip.dst, self.sid_list[self.test_sid_index + 1])
+
+ # rx'ed packet should have SRH
+ self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
+
+ # get SRH
+ rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
+ # rx'ed seglist should be equal to SID-list in reversed order
+ self.assertEqual(rx_srh.addresses, self.sid_list[::-1])
+ # segleft should be equal to previous segleft value minus 1
+ self.assertEqual(rx_srh.segleft,
+ len(self.sid_list) - self.test_sid_index - 2)
+ # lastentry should be equal to the SID-list length minus 1
+ self.assertEqual(rx_srh.lastentry, len(self.sid_list) - 1)
+
+ # the whole rx'ed pkt beyond SRH should be equal to tx'ed pkt
+ # except for the ttl field and ip checksum
+ tx_ip = tx_pkt.getlayer(IP)
+ # -> adjust tx'ed ttl to expected ttl
+ tx_ip.ttl = tx_ip.ttl - 1
+ # -> set tx'ed ip checksum to None and let scapy recompute
+ tx_ip.chksum = None
+ # -> read back the pkt (with str()) to force computing these fields
+ # probably other ways to accomplish this are possible
+ self.assertEqual(rx_srh.payload, IP(scapy.compat.raw(tx_ip)))
+
+ self.logger.debug("packet verification: SUCCESS")
+
+ def test_SRv6_End_AD_L2(self):
+ """ Test SRv6 End.AD behavior with L2 traffic.
+ """
+ self.src_addr = 'a0::'
+ self.sid_list = ['a1::', 'a2::a4', 'a3::']
+ self.test_sid_index = 1
+
+ # send traffic to one destination interface
+ # source and destination interfaces are IPv6 only
+ self.setup_interfaces(ipv6=[True, False])
+
+ # configure route to next segment
+ route = VppIpRoute(self, self.sid_list[self.test_sid_index + 1], 128,
+ [VppRoutePath(self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ proto=DpoProto.DPO_PROTO_IP6)])
+ route.add_vpp_config()
+
+ # configure SRv6 localSID behavior
+ cli_str = "sr localsid address " + \
+ self.sid_list[self.test_sid_index] + \
+ " behavior end.ad" + \
+ " oif " + self.pg1.name + \
+ " iif " + self.pg1.name
+ self.vapi.cli(cli_str)
+
+ # log the localsids
+ self.logger.debug(self.vapi.cli("show sr localsid"))
+
+ # send one packet per packet size
+ count = len(self.pg_packet_sizes)
+
+ # prepare L2 in SRv6 headers
+ packet_header1 = self.create_packet_header_IPv6_SRH_L2(
+ srcaddr=self.src_addr,
+ sidlist=self.sid_list[::-1],
+ segleft=len(self.sid_list) - self.test_sid_index - 1,
+ vlan=0)
+
+ # generate packets (pg0->pg1)
+ pkts1 = self.create_stream(self.pg0, self.pg1, packet_header1,
+ self.pg_packet_sizes, count)
+
+ # send packets and verify received packets
+ self.send_and_verify_pkts(self.pg0, pkts1, self.pg1,
+ self.compare_rx_tx_packet_End_AD_L2_out)
+
+ # log the localsid counters
+ self.logger.info(self.vapi.cli("show sr localsid"))
+
+ # prepare L2 header for returning packets
+ packet_header2 = self.create_packet_header_L2()
+
+ # generate returning packets (pg1->pg0)
+ pkts2 = self.create_stream(self.pg1, self.pg0, packet_header2,
+ self.pg_packet_sizes, count)
+
+ # send packets and verify received packets
+ self.send_and_verify_pkts(self.pg1, pkts2, self.pg0,
+ self.compare_rx_tx_packet_End_AD_L2_in)
+
+ # log the localsid counters
+ self.logger.info(self.vapi.cli("show sr localsid"))
+
+ # remove SRv6 localSIDs
+ cli_str = "sr localsid del address " + \
+ self.sid_list[self.test_sid_index]
+ self.vapi.cli(cli_str)
+
+ # cleanup interfaces
+ self.teardown_interfaces()
+
+ def compare_rx_tx_packet_End_AD_L2_out(self, tx_pkt, rx_pkt):
+ """ Compare input and output packet after passing End.AD with L2
+
+ :param tx_pkt: transmitted packet
+ :param rx_pkt: received packet
+ """
+
+ # get IPv4 header of rx'ed packet
+ rx_eth = rx_pkt.getlayer(Ether)
+
+ tx_ip = tx_pkt.getlayer(IPv6)
+ # we can't just get the 2nd Ether layer
+ # get the Raw content and dissect it as Ether
+ tx_eth1 = Ether(scapy.compat.raw(tx_pkt[Raw]))
+
+ # verify if rx'ed packet has no SRH
+ self.assertFalse(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
+
+ # the whole rx_eth pkt should be equal to tx_eth1
+ self.assertEqual(rx_eth, tx_eth1)
+
+ self.logger.debug("packet verification: SUCCESS")
+
+ def compare_rx_tx_packet_End_AD_L2_in(self, tx_pkt, rx_pkt):
+ """ Compare input and output packet after passing End.AD
+
+ :param tx_pkt: transmitted packet
+ :param rx_pkt: received packet
+ """
+
+ ####
+ # get first (outer) IPv6 header of rx'ed packet
+ rx_ip = rx_pkt.getlayer(IPv6)
+ # received ip.src should be equal to SR Policy source
+ self.assertEqual(rx_ip.src, self.src_addr)
+ # received ip.dst should be equal to expected sidlist next segment
+ self.assertEqual(rx_ip.dst, self.sid_list[self.test_sid_index + 1])
+
+ # rx'ed packet should have SRH
+ self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
+
+ # get SRH
+ rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
+ # rx'ed seglist should be equal to SID-list in reversed order
+ self.assertEqual(rx_srh.addresses, self.sid_list[::-1])
+ # segleft should be equal to previous segleft value minus 1
+ self.assertEqual(rx_srh.segleft,
+ len(self.sid_list) - self.test_sid_index - 2)
+ # lastentry should be equal to the SID-list length minus 1
+ self.assertEqual(rx_srh.lastentry, len(self.sid_list) - 1)
+
+ # the whole rx'ed pkt beyond SRH should be equal to tx'ed pkt
+ tx_ether = tx_pkt.getlayer(Ether)
+ self.assertEqual(Ether(scapy.compat.raw(rx_srh.payload)), tx_ether)
+
+ self.logger.debug("packet verification: SUCCESS")
+
+ def create_stream(self, src_if, dst_if, packet_header, packet_sizes,
+ count):
+ """Create SRv6 input packet stream for defined interface.
+
+ :param VppInterface src_if: Interface to create packet stream for
+ :param VppInterface dst_if: destination interface of packet stream
+ :param packet_header: Layer3 scapy packet headers,
+ L2 is added when not provided,
+ Raw(payload) with packet_info is added
+ :param list packet_sizes: packet stream pckt sizes,sequentially applied
+ to packets in stream have
+ :param int count: number of packets in packet stream
+ :return: list of packets
+ """
+ self.logger.info("Creating packets")
+ pkts = []
+ for i in range(0, count - 1):
+ payload_info = self.create_packet_info(src_if, dst_if)
+ self.logger.debug(
+ "Creating packet with index %d" % (payload_info.index))
+ payload = self.info_to_payload(payload_info)
+ # add L2 header if not yet provided in packet_header
+ if packet_header.getlayer(0).name == 'Ethernet':
+ p = packet_header / Raw(payload)
+ else:
+ p = Ether(dst=src_if.local_mac, src=src_if.remote_mac) / \
+ packet_header / Raw(payload)
+ size = packet_sizes[i % len(packet_sizes)]
+ self.logger.debug("Packet size %d" % (size))
+ self.extend_packet(p, size)
+ # we need to store the packet with the automatic fields computed
+ # read back the dumped packet (with str())
+ # to force computing these fields
+ # probably other ways are possible
+ p = Ether(scapy.compat.raw(p))
+ payload_info.data = p.copy()
+ self.logger.debug(ppp("Created packet:", p))
+ pkts.append(p)
+ self.logger.info("Done creating packets")
+ return pkts
+
+ def send_and_verify_pkts(self, input, pkts, output, compare_func):
+ """Send packets and verify received packets using compare_func
+
+ :param input: ingress interface of DUT
+ :param pkts: list of packets to transmit
+ :param output: egress interface of DUT
+ :param compare_func: function to compare in and out packets
+ """
+ # add traffic stream to input interface
+ input.add_stream(pkts)
+
+ # enable capture on all interfaces
+ self.pg_enable_capture(self.pg_interfaces)
+
+ # start traffic
+ self.logger.info("Starting traffic")
+ self.pg_start()
+
+ # get output capture
+ self.logger.info("Getting packet capture")
+ capture = output.get_capture()
+
+ # assert nothing was captured on input interface
+ # input.assert_nothing_captured()
+
+ # verify captured packets
+ self.verify_captured_pkts(output, capture, compare_func)
+
+ def create_packet_header_IPv6(self):
+ """Create packet header: IPv6 header, UDP header
+
+ :param dst: IPv6 destination address
+
+ IPv6 source address is 1234::1
+ IPv6 destination address is 4321::1
+ UDP source port and destination port are 1234
+ """
+
+ p = IPv6(src='1234::1', dst='4321::1') / UDP(sport=1234, dport=1234)
+ return p
+
+ def create_packet_header_IPv6_SRH_IPv6(self, srcaddr, sidlist, segleft):
+ """Create packet header: IPv6 encapsulated in SRv6:
+ IPv6 header with SRH, IPv6 header, UDP header
+
+ :param int srcaddr: outer source address
+ :param list sidlist: segment list of outer IPv6 SRH
+ :param int segleft: segments-left field of outer IPv6 SRH
+
+ Outer IPv6 source address is set to srcaddr
+ Outer IPv6 destination address is set to sidlist[segleft]
+ Inner IPv6 source addresses is 1234::1
+ Inner IPv6 destination address is 4321::1
+ UDP source port and destination port are 1234
+ """
+
+ p = IPv6(src=srcaddr, dst=sidlist[segleft]) / \
+ IPv6ExtHdrSegmentRouting(addresses=sidlist,
+ segleft=segleft, nh=41) / \
+ IPv6(src='1234::1', dst='4321::1') / \
+ UDP(sport=1234, dport=1234)
+ return p
+
+ def create_packet_header_IPv4(self):
+ """Create packet header: IPv4 header, UDP header
+
+ :param dst: IPv4 destination address
+
+ IPv4 source address is 123.1.1.1
+ IPv4 destination address is 124.1.1.1
+ UDP source port and destination port are 1234
+ """
+
+ p = IP(src='123.1.1.1', dst='124.1.1.1') / UDP(sport=1234, dport=1234)
+ return p
+
+ def create_packet_header_IPv6_SRH_IPv4(self, srcaddr, sidlist, segleft):
+ """Create packet header: IPv4 encapsulated in SRv6:
+ IPv6 header with SRH, IPv4 header, UDP header
+
+ :param int srcaddr: outer source address
+ :param list sidlist: segment list of outer IPv6 SRH
+ :param int segleft: segments-left field of outer IPv6 SRH
+
+ Outer IPv6 source address is set to srcaddr
+ Outer IPv6 destination address is set to sidlist[segleft]
+ Inner IPv4 source address is 123.1.1.1
+ Inner IPv4 destination address is 124.1.1.1
+ UDP source port and destination port are 1234
+ """
+
+ p = IPv6(src=srcaddr, dst=sidlist[segleft]) / \
+ IPv6ExtHdrSegmentRouting(addresses=sidlist,
+ segleft=segleft, nh=4) / \
+ IP(src='123.1.1.1', dst='124.1.1.1') / \
+ UDP(sport=1234, dport=1234)
+ return p
+
+ def create_packet_header_L2(self, vlan=0):
+ """Create packet header: L2 header
+
+ :param vlan: if vlan!=0 then add 802.1q header
+ """
+ # Note: the dst addr ('00:55:44:33:22:11') is used in
+ # the compare function compare_rx_tx_packet_T_Encaps_L2
+ # to detect presence of L2 in SRH payload
+ p = Ether(src='00:11:22:33:44:55', dst='00:55:44:33:22:11')
+ etype = 0x8137 # IPX
+ if vlan:
+ # add 802.1q layer
+ p /= Dot1Q(vlan=vlan, type=etype)
+ else:
+ p.type = etype
+ return p
+
+ def create_packet_header_IPv6_SRH_L2(self, srcaddr, sidlist, segleft,
+ vlan=0):
+ """Create packet header: L2 encapsulated in SRv6:
+ IPv6 header with SRH, L2
+
+ :param int srcaddr: IPv6 source address
+ :param list sidlist: segment list of outer IPv6 SRH
+ :param int segleft: segments-left field of outer IPv6 SRH
+ :param vlan: L2 vlan; if vlan!=0 then add 802.1q header
+
+ IPv6 source address is set to srcaddr
+ IPv6 destination address is set to sidlist[segleft]
+ """
+ eth = Ether(src='00:11:22:33:44:55', dst='00:55:44:33:22:11')
+ etype = 0x8137 # IPX
+ if vlan:
+ # add 802.1q layer
+ eth /= Dot1Q(vlan=vlan, type=etype)
+ else:
+ eth.type = etype
+
+ p = IPv6(src=srcaddr, dst=sidlist[segleft]) / \
+ IPv6ExtHdrSegmentRouting(addresses=sidlist,
+ segleft=segleft, nh=59) / \
+ eth
+ return p
+
+ def get_payload_info(self, packet):
+ """ Extract the payload_info from the packet
+ """
+ # in most cases, payload_info is in packet[Raw]
+ # but packet[Raw] gives the complete payload
+ # (incl L2 header) for the T.Encaps L2 case
+ try:
+ payload_info = self.payload_to_info(packet[Raw])
+
+ except:
+ # remote L2 header from packet[Raw]:
+ # take packet[Raw], convert it to an Ether layer
+ # and then extract Raw from it
+ payload_info = self.payload_to_info(
+ Ether(scapy.compat.raw(packet[Raw]))[Raw])
+
+ return payload_info
+
+ def verify_captured_pkts(self, dst_if, capture, compare_func):
+ """
+ Verify captured packet stream for specified interface.
+ Compare ingress with egress packets using the specified compare fn
+
+ :param dst_if: egress interface of DUT
+ :param capture: captured packets
+ :param compare_func: function to compare in and out packet
+ """
+ self.logger.info("Verifying capture on interface %s using function %s"
+ % (dst_if.name, compare_func.__name__))
+
+ last_info = dict()
+ for i in self.pg_interfaces:
+ last_info[i.sw_if_index] = None
+ dst_sw_if_index = dst_if.sw_if_index
+
+ for packet in capture:
+ try:
+ # extract payload_info from packet's payload
+ payload_info = self.get_payload_info(packet)
+ packet_index = payload_info.index
+
+ self.logger.debug("Verifying packet with index %d"
+ % (packet_index))
+ # packet should have arrived on the expected interface
+ self.assertEqual(payload_info.dst, dst_sw_if_index)
+ self.logger.debug(
+ "Got packet on interface %s: src=%u (idx=%u)" %
+ (dst_if.name, payload_info.src, packet_index))
+
+ # search for payload_info with same src and dst if_index
+ # this will give us the transmitted packet
+ next_info = self.get_next_packet_info_for_interface2(
+ payload_info.src, dst_sw_if_index,
+ last_info[payload_info.src])
+ last_info[payload_info.src] = next_info
+ # next_info should not be None
+ self.assertTrue(next_info is not None)
+ # index of tx and rx packets should be equal
+ self.assertEqual(packet_index, next_info.index)
+ # data field of next_info contains the tx packet
+ txed_packet = next_info.data
+
+ self.logger.debug(ppp("Transmitted packet:",
+ txed_packet)) # ppp=Pretty Print Packet
+
+ self.logger.debug(ppp("Received packet:", packet))
+
+ # compare rcvd packet with expected packet using compare_func
+ compare_func(txed_packet, packet)
+
+ except:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+
+ # have all expected packets arrived?
+ for i in self.pg_interfaces:
+ remaining_packet = self.get_next_packet_info_for_interface2(
+ i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
+ self.assertTrue(remaining_packet is None,
+ "Interface %s: Packet expected from interface %s "
+ "didn't arrive" % (dst_if.name, i.name))
+
+
+if __name__ == '__main__':
+ unittest.main(testRunner=VppTestRunner)
diff --git a/src/plugins/srv6-ad/test/vpp_srv6.py b/src/plugins/srv6-ad/test/vpp_srv6.py
new file mode 100644
index 00000000000..b6dbc014207
--- /dev/null
+++ b/src/plugins/srv6-ad/test/vpp_srv6.py
@@ -0,0 +1,222 @@
+"""
+ SRv6 LocalSIDs
+
+ object abstractions for representing SRv6 localSIDs in VPP
+"""
+
+from vpp_object import VppObject
+from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
+
+
+class SRv6LocalSIDBehaviors():
+ # from src/vnet/srv6/sr.h
+ SR_BEHAVIOR_END = 1
+ SR_BEHAVIOR_X = 2
+ SR_BEHAVIOR_T = 3
+ SR_BEHAVIOR_D_FIRST = 4 # Unused. Separator in between regular and D
+ SR_BEHAVIOR_DX2 = 5
+ SR_BEHAVIOR_DX6 = 6
+ SR_BEHAVIOR_DX4 = 7
+ SR_BEHAVIOR_DT6 = 8
+ SR_BEHAVIOR_DT4 = 9
+ SR_BEHAVIOR_LAST = 10 # Must always be the last one
+
+
+class SRv6PolicyType():
+ # from src/vnet/srv6/sr.h
+ SR_POLICY_TYPE_DEFAULT = 0
+ SR_POLICY_TYPE_SPRAY = 1
+
+
+class SRv6PolicySteeringTypes():
+ # from src/vnet/srv6/sr.h
+ SR_STEER_L2 = 2
+ SR_STEER_IPV4 = 4
+ SR_STEER_IPV6 = 6
+
+
+class VppSRv6LocalSID(VppObject):
+ """
+ SRv6 LocalSID
+ """
+
+ def __init__(self, test, localsid, behavior, nh_addr4, nh_addr6,
+ end_psp, sw_if_index, vlan_index, fib_table):
+ self._test = test
+ self.localsid = localsid
+ # keep binary format in _localsid
+ self.localsid["addr"] = inet_pton(AF_INET6, self.localsid["addr"])
+ self.behavior = behavior
+ self.nh_addr4 = inet_pton(AF_INET, nh_addr4)
+ self.nh_addr6 = inet_pton(AF_INET6, nh_addr6)
+ self.end_psp = end_psp
+ self.sw_if_index = sw_if_index
+ self.vlan_index = vlan_index
+ self.fib_table = fib_table
+ self._configured = False
+
+ def add_vpp_config(self):
+ self._test.vapi.sr_localsid_add_del(
+ self.localsid,
+ self.behavior,
+ self.nh_addr4,
+ self.nh_addr6,
+ is_del=0,
+ end_psp=self.end_psp,
+ sw_if_index=self.sw_if_index,
+ vlan_index=self.vlan_index,
+ fib_table=self.fib_table)
+ self._configured = True
+
+ def remove_vpp_config(self):
+ self._test.vapi.sr_localsid_add_del(
+ self.localsid,
+ self.behavior,
+ self.nh_addr4,
+ self.nh_addr6,
+ is_del=1,
+ end_psp=self.end_psp,
+ sw_if_index=self.sw_if_index,
+ vlan_index=self.vlan_index,
+ fib_table=self.fib_table)
+ self._configured = False
+
+ def query_vpp_config(self):
+ # sr_localsids_dump API is disabled
+ # use _configured flag for now
+ return self._configured
+
+ def object_id(self):
+ return ("%d;%s,%d"
+ % (self.fib_table,
+ self.localsid,
+ self.behavior))
+
+
+class VppSRv6Policy(VppObject):
+ """
+ SRv6 Policy
+ """
+
+ def __init__(self, test, bsid,
+ is_encap, sr_type, weight, fib_table,
+ segments, source):
+ self._test = test
+ self.bsid = bsid
+ # keep binary format in _bsid
+ self._bsid = inet_pton(AF_INET6, bsid)
+ self.is_encap = is_encap
+ self.sr_type = sr_type
+ self.weight = weight
+ self.fib_table = fib_table
+ self.segments = segments
+ # keep binary format in _segments
+ self._segments = []
+ for seg in segments:
+ self._segments.extend(inet_pton(AF_INET6, seg))
+ self.n_segments = len(segments)
+ # source not passed to API
+ # self.source = inet_pton(AF_INET6, source)
+ self.source = source
+ self._configured = False
+
+ def add_vpp_config(self):
+ self._test.vapi.sr_policy_add(
+ self._bsid,
+ self.weight,
+ self.is_encap,
+ self.sr_type,
+ self.fib_table,
+ self.n_segments,
+ self._segments)
+ self._configured = True
+
+ def remove_vpp_config(self):
+ self._test.vapi.sr_policy_del(
+ self._bsid)
+ self._configured = False
+
+ def query_vpp_config(self):
+ # no API to query SR Policies
+ # use _configured flag for now
+ return self._configured
+
+ def object_id(self):
+ return ("%d;%s-><%s>;%d"
+ % (self.sr_type,
+ self.bsid,
+ ','.join(self.segments),
+ self.is_encap))
+
+
+class VppSRv6Steering(VppObject):
+ """
+ SRv6 Steering
+ """
+
+ def __init__(self, test,
+ bsid,
+ prefix,
+ mask_width,
+ traffic_type,
+ sr_policy_index,
+ table_id,
+ sw_if_index):
+ self._test = test
+ self.bsid = bsid
+ # keep binary format in _bsid
+ self._bsid = inet_pton(AF_INET6, bsid)
+ self.prefix = prefix
+ # keep binary format in _prefix
+ if ':' in prefix:
+ # IPv6
+ self._prefix = inet_pton(AF_INET6, prefix)
+ else:
+ # IPv4
+ # API expects 16 octets (128 bits)
+ # last 4 octets are used for IPv4
+ # --> prepend 12 octets
+ self._prefix = ('\x00' * 12) + inet_pton(AF_INET, prefix)
+ self.mask_width = mask_width
+ self.traffic_type = traffic_type
+ self.sr_policy_index = sr_policy_index
+ self.sw_if_index = sw_if_index
+ self.table_id = table_id
+ self._configured = False
+
+ def add_vpp_config(self):
+ self._test.vapi.sr_steering_add_del(
+ 0,
+ self._bsid,
+ self.sr_policy_index,
+ self.table_id,
+ self._prefix,
+ self.mask_width,
+ self.sw_if_index,
+ self.traffic_type)
+ self._configured = True
+
+ def remove_vpp_config(self):
+ self._test.vapi.sr_steering_add_del(
+ 1,
+ self._bsid,
+ self.sr_policy_index,
+ self.table_id,
+ self._prefix,
+ self.mask_width,
+ self.sw_if_index,
+ self.traffic_type)
+ self._configured = False
+
+ def query_vpp_config(self):
+ # no API to query steering entries
+ # use _configured flag for now
+ return self._configured
+
+ def object_id(self):
+ return ("%d;%d;%s/%d->%s"
+ % (self.table_id,
+ self.traffic_type,
+ self.prefix,
+ self.mask_width,
+ self.bsid))