X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_mpls.py;h=aa5e67439b70107fa4cdd9ba4792a84f21590e7d;hb=52fae862646e25bac6d1cd11b9fc7ac77299bc25;hp=24fc4129ecd8c2ee4d7e0205b40b35f7bd26aeb4;hpb=cb630ff691264f7ea4a0f52cc6faa87fcdaa1a40;p=vpp.git diff --git a/test/test_mpls.py b/test/test_mpls.py index 24fc4129ecd..aa5e67439b7 100644 --- a/test/test_mpls.py +++ b/test/test_mpls.py @@ -4,35 +4,79 @@ import unittest import socket from framework import VppTestCase, VppTestRunner -from vpp_ip_route import IpRoute, RoutePath, MplsRoute, MplsIpBind +from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \ + VppMplsIpBind, VppIpMRoute, VppMRoutePath, \ + MRouteItfFlags, MRouteEntryFlags, DpoProto, VppIpTable, VppMplsTable +from vpp_mpls_tunnel_interface import VppMPLSTunnelInterface from scapy.packet import Raw from scapy.layers.l2 import Ether from scapy.layers.inet import IP, UDP, ICMP -from scapy.layers.inet6 import IPv6 +from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded from scapy.contrib.mpls import MPLS -from util import ppp + + +def verify_filter(capture, sent): + if not len(capture) == len(sent): + # filter out any IPv6 RAs from the capture + for p in capture: + if p.haslayer(IPv6): + capture.remove(p) + return capture + + +def verify_mpls_stack(tst, rx, mpls_labels, ttl=255, num=0): + # the rx'd packet has the MPLS label popped + eth = rx[Ether] + tst.assertEqual(eth.type, 0x8847) + + rx_mpls = rx[MPLS] + + for ii in range(len(mpls_labels)): + tst.assertEqual(rx_mpls.label, mpls_labels[ii]) + tst.assertEqual(rx_mpls.cos, 0) + if ii == num: + tst.assertEqual(rx_mpls.ttl, ttl) + else: + tst.assertEqual(rx_mpls.ttl, 255) + if ii == len(mpls_labels) - 1: + tst.assertEqual(rx_mpls.s, 1) + else: + # not end of stack + tst.assertEqual(rx_mpls.s, 0) + # pop the label to expose the next + rx_mpls = rx_mpls[MPLS].payload class TestMPLS(VppTestCase): """ MPLS Test Case """ - @classmethod - def setUpClass(cls): - super(TestMPLS, cls).setUpClass() - def setUp(self): super(TestMPLS, self).setUp() # create 2 pg interfaces - self.create_pg_interfaces(range(2)) + self.create_pg_interfaces(range(4)) # setup both interfaces # assign them different tables. table_id = 0 + self.tables = [] + + tbl = VppMplsTable(self, 0) + tbl.add_vpp_config() + self.tables.append(tbl) for i in self.pg_interfaces: i.admin_up() + + if table_id != 0: + tbl = VppIpTable(self, table_id) + tbl.add_vpp_config() + self.tables.append(tbl) + tbl = VppIpTable(self, table_id, is_ip6=1) + tbl.add_vpp_config() + self.tables.append(tbl) + i.set_table_ip4(table_id) i.set_table_ip6(table_id) i.config_ip4() @@ -43,14 +87,31 @@ class TestMPLS(VppTestCase): table_id += 1 def tearDown(self): + for i in self.pg_interfaces: + i.unconfig_ip4() + i.unconfig_ip6() + i.ip6_disable() + i.set_table_ip4(0) + i.set_table_ip6(0) + i.disable_mpls() + i.admin_down() super(TestMPLS, self).tearDown() # the default of 64 matches the IP packet TTL default - def create_stream_labelled_ip4(self, src_if, mpls_labels, mpls_ttl=255, ping=0, ip_itf=None): + def create_stream_labelled_ip4( + self, + src_if, + mpls_labels, + mpls_ttl=255, + ping=0, + ip_itf=None, + dst_ip=None, + chksum=None, + n=257): + self.reset_packet_infos() pkts = [] - for i in range(0, 257): - info = self.create_packet_info(src_if.sw_if_index, - src_if.sw_if_index) + for i in range(0, n): + info = self.create_packet_info(src_if, src_if) payload = self.info_to_payload(info) p = Ether(dst=src_if.local_mac, src=src_if.remote_mac) @@ -60,23 +121,30 @@ class TestMPLS(VppTestCase): else: p = p / MPLS(label=mpls_labels[ii], ttl=mpls_ttl, s=0) if not ping: - p = (p / IP(src=src_if.local_ip4, dst=src_if.remote_ip4) / - UDP(sport=1234, dport=1234) / - Raw(payload)) + if not dst_ip: + p = (p / IP(src=src_if.local_ip4, dst=src_if.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(payload)) + else: + p = (p / IP(src=src_if.local_ip4, dst=dst_ip) / + UDP(sport=1234, dport=1234) / + Raw(payload)) else: p = (p / IP(src=ip_itf.remote_ip4, dst=ip_itf.local_ip4) / ICMP()) + if chksum: + p[IP].chksum = chksum info.data = p.copy() pkts.append(p) return pkts def create_stream_ip4(self, src_if, dst_ip): + self.reset_packet_infos() pkts = [] for i in range(0, 257): - info = self.create_packet_info(src_if.sw_if_index, - src_if.sw_if_index) + info = self.create_packet_info(src_if, src_if) payload = self.info_to_payload(info) p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / IP(src=src_if.remote_ip4, dst=dst_ip) / @@ -86,33 +154,27 @@ class TestMPLS(VppTestCase): pkts.append(p) return pkts - def create_stream_labelled_ip6(self, src_if, mpls_label, mpls_ttl): + def create_stream_labelled_ip6(self, src_if, mpls_label, mpls_ttl, + dst_ip=None, hlim=64): + if dst_ip is None: + dst_ip = src_if.remote_ip6 + self.reset_packet_infos() pkts = [] for i in range(0, 257): - info = self.create_packet_info(src_if.sw_if_index, - src_if.sw_if_index) + info = self.create_packet_info(src_if, src_if) payload = self.info_to_payload(info) p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / MPLS(label=mpls_label, ttl=mpls_ttl) / - IPv6(src=src_if.remote_ip6, dst=src_if.remote_ip6) / + IPv6(src=src_if.remote_ip6, dst=dst_ip, hlim=hlim) / UDP(sport=1234, dport=1234) / Raw(payload)) info.data = p.copy() pkts.append(p) return pkts - @staticmethod - def verify_filter(capture, sent): - if not len(capture) == len(sent): - # filter out any IPv6 RAs from the capture - for p in capture: - if p.haslayer(IPv6): - capture.remove(p) - return capture - def verify_capture_ip4(self, src_if, capture, sent, ping_resp=0): try: - capture = self.verify_filter(capture, sent) + capture = verify_filter(capture, sent) self.assertEqual(len(capture), len(sent)) @@ -139,33 +201,10 @@ class TestMPLS(VppTestCase): except: raise - def verify_mpls_stack(self, rx, mpls_labels, ttl=255, num=0): - # the rx'd packet has the MPLS label popped - eth = rx[Ether] - self.assertEqual(eth.type, 0x8847) - - rx_mpls = rx[MPLS] - - for ii in range(len(mpls_labels)): - self.assertEqual(rx_mpls.label, mpls_labels[ii]) - self.assertEqual(rx_mpls.cos, 0) - if ii == num: - self.assertEqual(rx_mpls.ttl, ttl) - else: - self.assertEqual(rx_mpls.ttl, 255) - - if ii == len(mpls_labels) - 1: - self.assertEqual(rx_mpls.s, 1) - else: - # not end of stack - self.assertEqual(rx_mpls.s, 0) - # pop the label to expose the next - rx_mpls = rx_mpls[MPLS].payload - def verify_capture_labelled_ip4(self, src_if, capture, sent, mpls_labels): try: - capture = self.verify_filter(capture, sent) + capture = verify_filter(capture, sent) self.assertEqual(len(capture), len(sent)) @@ -176,8 +215,8 @@ class TestMPLS(VppTestCase): rx_ip = rx[IP] # the MPLS TTL is copied from the IP - self.verify_mpls_stack( - rx, mpls_labels, rx_ip.ttl, len(mpls_labels) - 1) + verify_mpls_stack(self, rx, mpls_labels, rx_ip.ttl, + len(mpls_labels) - 1) self.assertEqual(rx_ip.src, tx_ip.src) self.assertEqual(rx_ip.dst, tx_ip.dst) @@ -187,9 +226,12 @@ class TestMPLS(VppTestCase): except: raise - def verify_capture_tunneled_ip4(self, src_if, capture, sent, mpls_labels): + def verify_capture_tunneled_ip4(self, src_if, capture, sent, mpls_labels, + ttl=255, top=None): + if top is None: + top = len(mpls_labels) - 1 try: - capture = self.verify_filter(capture, sent) + capture = verify_filter(capture, sent) self.assertEqual(len(capture), len(sent)) @@ -200,8 +242,7 @@ class TestMPLS(VppTestCase): rx_ip = rx[IP] # the MPLS TTL is 255 since it enters a new tunnel - self.verify_mpls_stack( - rx, mpls_labels, 255, len(mpls_labels) - 1) + verify_mpls_stack(self, rx, mpls_labels, ttl, top) self.assertEqual(rx_ip.src, tx_ip.src) self.assertEqual(rx_ip.dst, tx_ip.dst) @@ -214,13 +255,13 @@ class TestMPLS(VppTestCase): def verify_capture_labelled(self, src_if, capture, sent, mpls_labels, ttl=254, num=0): try: - capture = self.verify_filter(capture, sent) + capture = verify_filter(capture, sent) self.assertEqual(len(capture), len(sent)) for i in range(len(capture)): rx = capture[i] - self.verify_mpls_stack(rx, mpls_labels, ttl, num) + verify_mpls_stack(self, rx, mpls_labels, ttl, num) except: raise @@ -247,16 +288,42 @@ class TestMPLS(VppTestCase): except: raise + def verify_capture_ip6_icmp(self, src_if, capture, sent): + try: + self.assertEqual(len(capture), len(sent)) + + for i in range(len(capture)): + tx = sent[i] + rx = capture[i] + + # the rx'd packet has the MPLS label popped + eth = rx[Ether] + self.assertEqual(eth.type, 0x86DD) + + tx_ip = tx[IPv6] + rx_ip = rx[IPv6] + + self.assertEqual(rx_ip.dst, tx_ip.src) + # ICMP sourced from the interface's address + self.assertEqual(rx_ip.src, src_if.local_ip6) + # hop-limit reset to 255 for IMCP packet + self.assertEqual(rx_ip.hlim, 254) + + icmp = rx[ICMPv6TimeExceeded] + + except: + raise + def test_swap(self): """ MPLS label swap tests """ # # A simple MPLS xconnect - eos label in label out # - route_32_eos = MplsRoute(self, 32, 1, - [RoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index, - labels=[33])]) + route_32_eos = VppMplsRoute(self, 32, 1, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[33])]) route_32_eos.add_vpp_config() # @@ -271,15 +338,15 @@ class TestMPLS(VppTestCase): self.pg_start() rx = self.pg0.get_capture() - self.verify_capture_labelled_ip4(self.pg0, rx, tx, [33]) + self.verify_capture_labelled(self.pg0, rx, tx, [33]) # # A simple MPLS xconnect - non-eos label in label out # - route_32_neos = MplsRoute(self, 32, 0, - [RoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index, - labels=[33])]) + route_32_neos = VppMplsRoute(self, 32, 0, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[33])]) route_32_neos.add_vpp_config() # @@ -299,10 +366,10 @@ class TestMPLS(VppTestCase): # # An MPLS xconnect - EOS label in IP out # - route_33_eos = MplsRoute(self, 33, 1, - [RoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index, - labels=[])]) + route_33_eos = VppMplsRoute(self, 33, 1, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[])]) route_33_eos.add_vpp_config() self.vapi.cli("clear trace") @@ -315,14 +382,99 @@ class TestMPLS(VppTestCase): rx = self.pg0.get_capture() self.verify_capture_ip4(self.pg0, rx, tx) + # + # disposed packets have an invalid IPv4 checkusm + # + tx = self.create_stream_labelled_ip4(self.pg0, [33], + dst_ip=self.pg0.remote_ip4, + n=65, + chksum=1) + self.send_and_assert_no_replies(self.pg0, tx, "Invalid Checksum") + + # + # An MPLS xconnect - EOS label in IPv6 out + # + route_333_eos = VppMplsRoute( + self, 333, 1, + [VppRoutePath(self.pg0.remote_ip6, + self.pg0.sw_if_index, + labels=[], + proto=DpoProto.DPO_PROTO_IP6)]) + route_333_eos.add_vpp_config() + + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip6(self.pg0, [333], 64) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_ip6(self.pg0, rx, tx) + + # + # disposed packets have an TTL expired + # + tx = self.create_stream_labelled_ip6(self.pg0, [333], 64, + dst_ip=self.pg1.remote_ip6, + hlim=1) + + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip6(self.pg0, [333], 64, + dst_ip=self.pg1.remote_ip6, + hlim=0) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_ip6_icmp(self.pg0, rx, tx) + + # + # An MPLS xconnect - EOS label in IPv6 out w imp-null + # + route_334_eos = VppMplsRoute( + self, 334, 1, + [VppRoutePath(self.pg0.remote_ip6, + self.pg0.sw_if_index, + labels=[3], + proto=DpoProto.DPO_PROTO_IP6)]) + route_334_eos.add_vpp_config() + + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip6(self.pg0, [334], 64) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_ip6(self.pg0, rx, tx) + + # + # disposed packets have an TTL expired + # + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip6(self.pg0, [334], 64, + dst_ip=self.pg1.remote_ip6, + hlim=0) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_ip6_icmp(self.pg0, rx, tx) + # # An MPLS xconnect - non-EOS label in IP out - an invalid configuration # so this traffic should be dropped. # - route_33_neos = MplsRoute(self, 33, 0, - [RoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index, - labels=[])]) + route_33_neos = VppMplsRoute(self, 33, 0, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[])]) route_33_neos.add_vpp_config() self.vapi.cli("clear trace") @@ -331,26 +483,19 @@ class TestMPLS(VppTestCase): self.pg_enable_capture(self.pg_interfaces) self.pg_start() - - rx = self.pg0.get_capture() - try: - self.assertEqual(0, len(rx)) - except: - self.logger.error("MPLS non-EOS packets popped and forwarded") - self.logger.error(ppp("", rx)) - raise + self.pg0.assert_nothing_captured( + remark="MPLS non-EOS packets popped and forwarded") # # A recursive EOS x-connect, which resolves through another x-connect # - route_34_eos = MplsRoute(self, 34, 1, - [RoutePath("0.0.0.0", - 0xffffffff, - nh_via_label=32, - labels=[44, 45])]) + route_34_eos = VppMplsRoute(self, 34, 1, + [VppRoutePath("0.0.0.0", + 0xffffffff, + nh_via_label=32, + labels=[44, 45])]) route_34_eos.add_vpp_config() - self.vapi.cli("clear trace") tx = self.create_stream_labelled_ip4(self.pg0, [34]) self.pg0.add_stream(tx) @@ -358,17 +503,17 @@ class TestMPLS(VppTestCase): self.pg_start() rx = self.pg0.get_capture() - self.verify_capture_labelled_ip4(self.pg0, rx, tx, [33, 44, 45]) + self.verify_capture_labelled(self.pg0, rx, tx, [33, 44, 45], num=2) # # A recursive non-EOS x-connect, which resolves through another # x-connect # - route_34_neos = MplsRoute(self, 34, 0, - [RoutePath("0.0.0.0", - 0xffffffff, - nh_via_label=32, - labels=[44, 46])]) + route_34_neos = VppMplsRoute(self, 34, 0, + [VppRoutePath("0.0.0.0", + 0xffffffff, + nh_via_label=32, + labels=[44, 46])]) route_34_neos.add_vpp_config() self.vapi.cli("clear trace") @@ -386,11 +531,11 @@ class TestMPLS(VppTestCase): # an recursive IP route that resolves through the recursive non-eos # x-connect # - ip_10_0_0_1 = IpRoute(self, "10.0.0.1", 32, - [RoutePath("0.0.0.0", - 0xffffffff, - nh_via_label=34, - labels=[55])]) + ip_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32, + [VppRoutePath("0.0.0.0", + 0xffffffff, + nh_via_label=34, + labels=[55])]) ip_10_0_0_1.add_vpp_config() self.vapi.cli("clear trace") @@ -417,14 +562,14 @@ class TestMPLS(VppTestCase): # # Add a non-recursive route with a single out label # - route_10_0_0_1 = IpRoute(self, "10.0.0.1", 32, - [RoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index, - labels=[45])]) + route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[45])]) route_10_0_0_1.add_vpp_config() # bind a local label to the route - binding = MplsIpBind(self, 44, "10.0.0.1", 32) + binding = VppMplsIpBind(self, 44, "10.0.0.1", 32) binding.add_vpp_config() # non-EOS stream @@ -472,10 +617,10 @@ class TestMPLS(VppTestCase): # # Add a non-recursive route with a single out label # - route_10_0_0_1 = IpRoute(self, "10.0.0.1", 32, - [RoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index, - labels=[32])]) + route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[32])]) route_10_0_0_1.add_vpp_config() # @@ -495,10 +640,10 @@ class TestMPLS(VppTestCase): # # Add a non-recursive route with a 3 out labels # - route_10_0_0_2 = IpRoute(self, "10.0.0.2", 32, - [RoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index, - labels=[32, 33, 34])]) + route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[32, 33, 34])]) route_10_0_0_2.add_vpp_config() # @@ -518,10 +663,10 @@ class TestMPLS(VppTestCase): # # add a recursive path, with output label, via the 1 label route # - route_11_0_0_1 = IpRoute(self, "11.0.0.1", 32, - [RoutePath("10.0.0.1", - 0xffffffff, - labels=[44])]) + route_11_0_0_1 = VppIpRoute(self, "11.0.0.1", 32, + [VppRoutePath("10.0.0.1", + 0xffffffff, + labels=[44])]) route_11_0_0_1.add_vpp_config() # @@ -541,10 +686,10 @@ class TestMPLS(VppTestCase): # # add a recursive path, with 2 labels, via the 3 label route # - route_11_0_0_2 = IpRoute(self, "11.0.0.2", 32, - [RoutePath("10.0.0.2", - 0xffffffff, - labels=[44, 45])]) + route_11_0_0_2 = VppIpRoute(self, "11.0.0.2", 32, + [VppRoutePath("10.0.0.2", + 0xffffffff, + labels=[44, 45])]) route_11_0_0_2.add_vpp_config() # @@ -576,38 +721,20 @@ class TestMPLS(VppTestCase): # # Create a tunnel with a single out label # - nh_addr = socket.inet_pton(socket.AF_INET, self.pg0.remote_ip4) - - reply = self.vapi.mpls_tunnel_add_del( - 0xffffffff, # don't know the if index yet - 1, # IPv4 next-hop - nh_addr, - self.pg0.sw_if_index, - 0, # next-hop-table-id - 1, # next-hop-weight - 2, # num-out-labels, - [44, 46] - ) - self.vapi.sw_interface_set_flags(reply.sw_if_index, admin_up_down=1) + mpls_tun = VppMPLSTunnelInterface(self, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[44, 46])]) + mpls_tun.add_vpp_config() + mpls_tun.admin_up() # # add an unlabelled route through the new tunnel # - dest_addr = socket.inet_pton(socket.AF_INET, "10.0.0.3") - nh_addr = socket.inet_pton(socket.AF_INET, "0.0.0.0") - dest_addr_len = 32 - - self.vapi.ip_add_del_route( - dest_addr, - dest_addr_len, - nh_addr, # all zeros next-hop - tunnel is p2p - reply.sw_if_index, # sw_if_index of the new tunnel - 0, # table-id - 0, # next-hop-table-id - 1, # next-hop-weight - 0, # num-out-labels, - [] # out-label - ) + route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32, + [VppRoutePath("0.0.0.0", + mpls_tun._sw_if_index)]) + route_10_0_0_3.add_vpp_config() self.vapi.cli("clear trace") tx = self.create_stream_ip4(self.pg0, "10.0.0.3") @@ -619,6 +746,26 @@ class TestMPLS(VppTestCase): rx = self.pg0.get_capture() self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [44, 46]) + # + # add a labelled route through the new tunnel + # + route_10_0_0_4 = VppIpRoute(self, "10.0.0.4", 32, + [VppRoutePath("0.0.0.0", + mpls_tun._sw_if_index, + labels=[33])]) + route_10_0_0_4.add_vpp_config() + + self.vapi.cli("clear trace") + tx = self.create_stream_ip4(self.pg0, "10.0.0.4") + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [44, 46, 33], + ttl=63, top=2) + def test_v4_exp_null(self): """ MPLS V4 Explicit NULL test """ @@ -632,20 +779,12 @@ class TestMPLS(VppTestCase): self.pg_enable_capture(self.pg_interfaces) self.pg_start() - rx = self.pg0.get_capture() - - try: - self.assertEqual(0, len(rx)) - except: - self.logger.error("MPLS TTL=0 packets forwarded") - self.logger.error(ppp("", rx)) - raise + self.pg0.assert_nothing_captured(remark="MPLS TTL=0 packets forwarded") # # a stream with a non-zero MPLS TTL # PG0 is in the default table # - self.vapi.cli("clear trace") tx = self.create_stream_labelled_ip4(self.pg0, [0]) self.pg0.add_stream(tx) @@ -708,10 +847,10 @@ class TestMPLS(VppTestCase): # # A de-agg route - next-hop lookup in default table # - route_34_eos = MplsRoute(self, 34, 1, - [RoutePath("0.0.0.0", - 0xffffffff, - nh_table_id=0)]) + route_34_eos = VppMplsRoute(self, 34, 1, + [VppRoutePath("0.0.0.0", + 0xffffffff, + nh_table_id=0)]) route_34_eos.add_vpp_config() # @@ -732,10 +871,10 @@ class TestMPLS(VppTestCase): # # A de-agg route - next-hop lookup in non-default table # - route_35_eos = MplsRoute(self, 35, 1, - [RoutePath("0.0.0.0", - 0xffffffff, - nh_table_id=1)]) + route_35_eos = VppMplsRoute(self, 35, 1, + [VppRoutePath("0.0.0.0", + 0xffffffff, + nh_table_id=1)]) route_35_eos.add_vpp_config() # @@ -744,17 +883,1009 @@ class TestMPLS(VppTestCase): # default table and egress unlabelled in the non-default # self.vapi.cli("clear trace") - tx = self.create_stream_labelled_ip4(self.pg0, [35], ping=1, ip_itf=self.pg1) + tx = self.create_stream_labelled_ip4( + self.pg0, [35], ping=1, ip_itf=self.pg1) self.pg0.add_stream(tx) self.pg_enable_capture(self.pg_interfaces) self.pg_start() - rx = self.pg1.get_capture() + packet_count = self.get_packet_count_for_if_idx(self.pg0.sw_if_index) + rx = self.pg1.get_capture(packet_count) self.verify_capture_ip4(self.pg1, rx, tx, ping_resp=1) + # + # Double pop + # + route_36_neos = VppMplsRoute(self, 36, 0, + [VppRoutePath("0.0.0.0", + 0xffffffff)]) + route_36_neos.add_vpp_config() + + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip4(self.pg0, [36, 35], + ping=1, ip_itf=self.pg1) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(len(tx)) + self.verify_capture_ip4(self.pg1, rx, tx, ping_resp=1) + + route_36_neos.remove_vpp_config() route_35_eos.remove_vpp_config() route_34_eos.remove_vpp_config() + def test_interface_rx(self): + """ MPLS Interface Receive """ + + # + # Add a non-recursive route that will forward the traffic + # post-interface-rx + # + route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32, + table_id=1, + paths=[VppRoutePath(self.pg1.remote_ip4, + self.pg1.sw_if_index)]) + route_10_0_0_1.add_vpp_config() + + # + # An interface receive label that maps traffic to RX on interface + # pg1 + # by injecting the packet in on pg0, which is in table 0 + # doing an interface-rx on pg1 and matching a route in table 1 + # if the packet egresses, then we must have swapped to pg1 + # so as to have matched the route in table 1 + # + route_34_eos = VppMplsRoute(self, 34, 1, + [VppRoutePath("0.0.0.0", + self.pg1.sw_if_index, + is_interface_rx=1)]) + route_34_eos.add_vpp_config() + + # + # ping an interface in the default table + # PG0 is in the default table + # + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip4(self.pg0, [34], n=257, + dst_ip="10.0.0.1") + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(257) + self.verify_capture_ip4(self.pg1, rx, tx) + + def test_mcast_mid_point(self): + """ MPLS Multicast Mid Point """ + + # + # Add a non-recursive route that will forward the traffic + # post-interface-rx + # + route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32, + table_id=1, + paths=[VppRoutePath(self.pg1.remote_ip4, + self.pg1.sw_if_index)]) + route_10_0_0_1.add_vpp_config() + + # + # Add a mcast entry that replicate to pg2 and pg3 + # and replicate to a interface-rx (like a bud node would) + # + route_3400_eos = VppMplsRoute(self, 3400, 1, + [VppRoutePath(self.pg2.remote_ip4, + self.pg2.sw_if_index, + labels=[3401]), + VppRoutePath(self.pg3.remote_ip4, + self.pg3.sw_if_index, + labels=[3402]), + VppRoutePath("0.0.0.0", + self.pg1.sw_if_index, + is_interface_rx=1)], + is_multicast=1) + route_3400_eos.add_vpp_config() + + # + # ping an interface in the default table + # PG0 is in the default table + # + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip4(self.pg0, [3400], n=257, + dst_ip="10.0.0.1") + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(257) + self.verify_capture_ip4(self.pg1, rx, tx) + + rx = self.pg2.get_capture(257) + self.verify_capture_labelled(self.pg2, rx, tx, [3401]) + rx = self.pg3.get_capture(257) + self.verify_capture_labelled(self.pg3, rx, tx, [3402]) + + def test_mcast_head(self): + """ MPLS Multicast Head-end """ + + # + # Create a multicast tunnel with two replications + # + mpls_tun = VppMPLSTunnelInterface(self, + [VppRoutePath(self.pg2.remote_ip4, + self.pg2.sw_if_index, + labels=[42]), + VppRoutePath(self.pg3.remote_ip4, + self.pg3.sw_if_index, + labels=[43])], + is_multicast=1) + mpls_tun.add_vpp_config() + mpls_tun.admin_up() + + # + # add an unlabelled route through the new tunnel + # + route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32, + [VppRoutePath("0.0.0.0", + mpls_tun._sw_if_index)]) + route_10_0_0_3.add_vpp_config() + + self.vapi.cli("clear trace") + tx = self.create_stream_ip4(self.pg0, "10.0.0.3") + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg2.get_capture(257) + self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [42]) + rx = self.pg3.get_capture(257) + self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [43]) + + # + # An an IP multicast route via the tunnel + # A (*,G). + # one accepting interface, pg0, 1 forwarding interface via the tunnel + # + route_232_1_1_1 = VppIpMRoute( + self, + "0.0.0.0", + "232.1.1.1", 32, + MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, + [VppMRoutePath(self.pg0.sw_if_index, + MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT), + VppMRoutePath(mpls_tun._sw_if_index, + MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) + route_232_1_1_1.add_vpp_config() + + self.vapi.cli("clear trace") + tx = self.create_stream_ip4(self.pg0, "232.1.1.1") + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg2.get_capture(257) + self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [42]) + rx = self.pg3.get_capture(257) + self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [43]) + + def test_mcast_ip4_tail(self): + """ MPLS IPv4 Multicast Tail """ + + # + # Add a multicast route that will forward the traffic + # post-disposition + # + route_232_1_1_1 = VppIpMRoute( + self, + "0.0.0.0", + "232.1.1.1", 32, + MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, + table_id=1, + paths=[VppMRoutePath(self.pg1.sw_if_index, + MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)]) + route_232_1_1_1.add_vpp_config() + + # + # An interface receive label that maps traffic to RX on interface + # pg1 + # by injecting the packet in on pg0, which is in table 0 + # doing an rpf-id and matching a route in table 1 + # if the packet egresses, then we must have matched the route in + # table 1 + # + route_34_eos = VppMplsRoute(self, 34, 1, + [VppRoutePath("0.0.0.0", + self.pg1.sw_if_index, + nh_table_id=1, + rpf_id=55)], + is_multicast=1) + + route_34_eos.add_vpp_config() + + # + # Drop due to interface lookup miss + # + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip4(self.pg0, [34], + dst_ip="232.1.1.1", n=1) + self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop none") + + # + # set the RPF-ID of the enrtry to match the input packet's + # + route_232_1_1_1.update_rpf_id(55) + + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip4(self.pg0, [34], + dst_ip="232.1.1.1", n=257) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(257) + self.verify_capture_ip4(self.pg1, rx, tx) + + # + # disposed packets have an invalid IPv4 checkusm + # + tx = self.create_stream_labelled_ip4(self.pg0, [34], + dst_ip="232.1.1.1", n=65, + chksum=1) + self.send_and_assert_no_replies(self.pg0, tx, "Invalid Checksum") + + # + # set the RPF-ID of the enrtry to not match the input packet's + # + route_232_1_1_1.update_rpf_id(56) + tx = self.create_stream_labelled_ip4(self.pg0, [34], + dst_ip="232.1.1.1") + self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop 56") + + def test_mcast_ip6_tail(self): + """ MPLS IPv6 Multicast Tail """ + + # + # Add a multicast route that will forward the traffic + # post-disposition + # + route_ff = VppIpMRoute( + self, + "::", + "ff01::1", 32, + MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE, + table_id=1, + paths=[VppMRoutePath(self.pg1.sw_if_index, + MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)], + is_ip6=1) + route_ff.add_vpp_config() + + # + # An interface receive label that maps traffic to RX on interface + # pg1 + # by injecting the packet in on pg0, which is in table 0 + # doing an rpf-id and matching a route in table 1 + # if the packet egresses, then we must have matched the route in + # table 1 + # + route_34_eos = VppMplsRoute( + self, 34, 1, + [VppRoutePath("::", + self.pg1.sw_if_index, + nh_table_id=1, + rpf_id=55, + proto=DpoProto.DPO_PROTO_IP6)], + is_multicast=1) + + route_34_eos.add_vpp_config() + + # + # Drop due to interface lookup miss + # + tx = self.create_stream_labelled_ip6(self.pg0, [34], 255, + dst_ip="ff01::1") + + # + # set the RPF-ID of the enrtry to match the input packet's + # + route_ff.update_rpf_id(55) + + tx = self.create_stream_labelled_ip6(self.pg0, [34], 255, + dst_ip="ff01::1") + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(257) + self.verify_capture_ip6(self.pg1, rx, tx) + + # + # disposed packets have hop-limit = 1 + # + tx = self.create_stream_labelled_ip6(self.pg0, [34], 255, + dst_ip="ff01::1", hlim=1) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture(257) + self.verify_capture_ip6_icmp(self.pg0, rx, tx) + + # + # set the RPF-ID of the enrtry to not match the input packet's + # + route_ff.update_rpf_id(56) + tx = self.create_stream_labelled_ip6(self.pg0, [34], 225, + dst_ip="ff01::1") + self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop 56") + + +class TestMPLSDisabled(VppTestCase): + """ MPLS disabled """ + + def setUp(self): + super(TestMPLSDisabled, self).setUp() + + # create 2 pg interfaces + self.create_pg_interfaces(range(2)) + + self.tbl = VppMplsTable(self, 0) + self.tbl.add_vpp_config() + + # PG0 is MPLS enalbed + self.pg0.admin_up() + self.pg0.config_ip4() + self.pg0.resolve_arp() + self.pg0.enable_mpls() + + # PG 1 is not MPLS enabled + self.pg1.admin_up() + + def tearDown(self): + for i in self.pg_interfaces: + i.unconfig_ip4() + i.admin_down() + + self.pg0.disable_mpls() + super(TestMPLSDisabled, self).tearDown() + + def test_mpls_disabled(self): + """ MPLS Disabled """ + + tx = (Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) / + MPLS(label=32, ttl=64) / + IPv6(src="2001::1", dst=self.pg0.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + # + # A simple MPLS xconnect - eos label in label out + # + route_32_eos = VppMplsRoute(self, 32, 1, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[33])]) + route_32_eos.add_vpp_config() + + # + # PG1 does not forward IP traffic + # + self.send_and_assert_no_replies(self.pg1, tx, "MPLS disabled") + + # + # MPLS enable PG1 + # + self.pg1.enable_mpls() + + # + # Now we get packets through + # + self.pg1.add_stream(tx) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture(1) + + # + # Disable PG1 + # + self.pg1.disable_mpls() + + # + # PG1 does not forward IP traffic + # + self.send_and_assert_no_replies(self.pg1, tx, "IPv6 disabled") + self.send_and_assert_no_replies(self.pg1, tx, "IPv6 disabled") + + +class TestMPLSPIC(VppTestCase): + """ MPLS PIC edge convergence """ + + def setUp(self): + super(TestMPLSPIC, self).setUp() + + # create 2 pg interfaces + self.create_pg_interfaces(range(4)) + + mpls_tbl = VppMplsTable(self, 0) + mpls_tbl.add_vpp_config() + tbl4 = VppIpTable(self, 1) + tbl4.add_vpp_config() + tbl6 = VppIpTable(self, 1, is_ip6=1) + tbl6.add_vpp_config() + + # core links + self.pg0.admin_up() + self.pg0.config_ip4() + self.pg0.resolve_arp() + self.pg0.enable_mpls() + self.pg1.admin_up() + self.pg1.config_ip4() + self.pg1.resolve_arp() + self.pg1.enable_mpls() + + # VRF (customer facing) link + self.pg2.admin_up() + self.pg2.set_table_ip4(1) + self.pg2.config_ip4() + self.pg2.resolve_arp() + self.pg2.set_table_ip6(1) + self.pg2.config_ip6() + self.pg2.resolve_ndp() + self.pg3.admin_up() + self.pg3.set_table_ip4(1) + self.pg3.config_ip4() + self.pg3.resolve_arp() + self.pg3.set_table_ip6(1) + self.pg3.config_ip6() + self.pg3.resolve_ndp() + + def tearDown(self): + self.pg0.disable_mpls() + self.pg1.disable_mpls() + for i in self.pg_interfaces: + i.unconfig_ip4() + i.unconfig_ip6() + i.set_table_ip4(0) + i.set_table_ip6(0) + i.admin_down() + super(TestMPLSPIC, self).tearDown() + + def test_mpls_ibgp_pic(self): + """ MPLS iBGP PIC edge convergence + + 1) setup many iBGP VPN routes via a pair of iBGP peers. + 2) Check EMCP forwarding to these peers + 3) withdraw the IGP route to one of these peers. + 4) check forwarding continues to the remaining peer + """ + + # + # IGP+LDP core routes + # + core_10_0_0_45 = VppIpRoute(self, "10.0.0.45", 32, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[45])]) + core_10_0_0_45.add_vpp_config() + + core_10_0_0_46 = VppIpRoute(self, "10.0.0.46", 32, + [VppRoutePath(self.pg1.remote_ip4, + self.pg1.sw_if_index, + labels=[46])]) + core_10_0_0_46.add_vpp_config() + + # + # Lot's of VPN routes. We need more the 64 so VPP will build + # the fast convergence indirection + # + vpn_routes = [] + pkts = [] + for ii in range(64): + dst = "192.168.1.%d" % ii + vpn_routes.append(VppIpRoute(self, dst, 32, + [VppRoutePath("10.0.0.45", + 0xffffffff, + labels=[145], + is_resolve_host=1), + VppRoutePath("10.0.0.46", + 0xffffffff, + labels=[146], + is_resolve_host=1)], + table_id=1)) + vpn_routes[ii].add_vpp_config() + + pkts.append(Ether(dst=self.pg2.local_mac, + src=self.pg2.remote_mac) / + IP(src=self.pg2.remote_ip4, dst=dst) / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + # + # Send the packet stream (one pkt to each VPN route) + # - expect a 50-50 split of the traffic + # + self.pg2.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg0._get_capture(1) + rx1 = self.pg1._get_capture(1) + + # not testig the LB hashing algorithm so we're not concerned + # with the split ratio, just as long as neither is 0 + self.assertNotEqual(0, len(rx0)) + self.assertNotEqual(0, len(rx1)) + + # + # use a test CLI command to stop the FIB walk process, this + # will prevent the FIB converging the VPN routes and thus allow + # us to probe the interim (psot-fail, pre-converge) state + # + self.vapi.ppcli("test fib-walk-process disable") + + # + # Withdraw one of the IGP routes + # + core_10_0_0_46.remove_vpp_config() + + # + # now all packets should be forwarded through the remaining peer + # + self.vapi.ppcli("clear trace") + self.pg2.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg0.get_capture(len(pkts)) + + # + # enable the FIB walk process to converge the FIB + # + self.vapi.ppcli("test fib-walk-process enable") + + # + # packets should still be forwarded through the remaining peer + # + self.pg2.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg0.get_capture(64) + + # + # Add the IGP route back and we return to load-balancing + # + core_10_0_0_46.add_vpp_config() + + self.pg2.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg0._get_capture(1) + rx1 = self.pg1._get_capture(1) + self.assertNotEqual(0, len(rx0)) + self.assertNotEqual(0, len(rx1)) + + def test_mpls_ebgp_pic(self): + """ MPLS eBGP PIC edge convergence + + 1) setup many eBGP VPN routes via a pair of eBGP peers + 2) Check EMCP forwarding to these peers + 3) withdraw one eBGP path - expect LB across remaining eBGP + """ + + # + # Lot's of VPN routes. We need more the 64 so VPP will build + # the fast convergence indirection + # + vpn_routes = [] + vpn_bindings = [] + pkts = [] + for ii in range(64): + dst = "192.168.1.%d" % ii + local_label = 1600 + ii + vpn_routes.append(VppIpRoute(self, dst, 32, + [VppRoutePath(self.pg2.remote_ip4, + 0xffffffff, + nh_table_id=1, + is_resolve_attached=1), + VppRoutePath(self.pg3.remote_ip4, + 0xffffffff, + nh_table_id=1, + is_resolve_attached=1)], + table_id=1)) + vpn_routes[ii].add_vpp_config() + + vpn_bindings.append(VppMplsIpBind(self, local_label, dst, 32, + ip_table_id=1)) + vpn_bindings[ii].add_vpp_config() + + pkts.append(Ether(dst=self.pg0.local_mac, + src=self.pg0.remote_mac) / + MPLS(label=local_label, ttl=64) / + IP(src=self.pg0.remote_ip4, dst=dst) / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + self.pg0.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg2._get_capture(1) + rx1 = self.pg3._get_capture(1) + self.assertNotEqual(0, len(rx0)) + self.assertNotEqual(0, len(rx1)) + + # + # use a test CLI command to stop the FIB walk process, this + # will prevent the FIB converging the VPN routes and thus allow + # us to probe the interim (psot-fail, pre-converge) state + # + self.vapi.ppcli("test fib-walk-process disable") + + # + # withdraw the connected prefix on the interface. + # + self.pg2.unconfig_ip4() + + # + # now all packets should be forwarded through the remaining peer + # + self.pg0.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg3.get_capture(len(pkts)) + + # + # enable the FIB walk process to converge the FIB + # + self.vapi.ppcli("test fib-walk-process enable") + self.pg0.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg3.get_capture(len(pkts)) + + # + # put the connecteds back + # + self.pg2.config_ip4() + + self.pg0.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg2._get_capture(1) + rx1 = self.pg3._get_capture(1) + self.assertNotEqual(0, len(rx0)) + self.assertNotEqual(0, len(rx1)) + + def test_mpls_v6_ebgp_pic(self): + """ MPLSv6 eBGP PIC edge convergence + + 1) setup many eBGP VPNv6 routes via a pair of eBGP peers + 2) Check EMCP forwarding to these peers + 3) withdraw one eBGP path - expect LB across remaining eBGP + """ + + # + # Lot's of VPN routes. We need more the 64 so VPP will build + # the fast convergence indirection + # + vpn_routes = [] + vpn_bindings = [] + pkts = [] + for ii in range(64): + dst = "3000::%d" % ii + local_label = 1600 + ii + vpn_routes.append(VppIpRoute( + self, dst, 128, + [VppRoutePath(self.pg2.remote_ip6, + 0xffffffff, + nh_table_id=1, + is_resolve_attached=1, + proto=DpoProto.DPO_PROTO_IP6), + VppRoutePath(self.pg3.remote_ip6, + 0xffffffff, + nh_table_id=1, + proto=DpoProto.DPO_PROTO_IP6, + is_resolve_attached=1)], + table_id=1, + is_ip6=1)) + vpn_routes[ii].add_vpp_config() + + vpn_bindings.append(VppMplsIpBind(self, local_label, dst, 128, + ip_table_id=1, + is_ip6=1)) + vpn_bindings[ii].add_vpp_config() + + pkts.append(Ether(dst=self.pg0.local_mac, + src=self.pg0.remote_mac) / + MPLS(label=local_label, ttl=64) / + IPv6(src=self.pg0.remote_ip6, dst=dst) / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + self.pg0.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg2._get_capture(1) + rx1 = self.pg3._get_capture(1) + self.assertNotEqual(0, len(rx0)) + self.assertNotEqual(0, len(rx1)) + + # + # use a test CLI command to stop the FIB walk process, this + # will prevent the FIB converging the VPN routes and thus allow + # us to probe the interim (psot-fail, pre-converge) state + # + self.vapi.ppcli("test fib-walk-process disable") + + # + # withdraw the connected prefix on the interface. + # and shutdown the interface so the ND cache is flushed. + # + self.pg2.unconfig_ip6() + self.pg2.admin_down() + + # + # now all packets should be forwarded through the remaining peer + # + self.pg0.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg3.get_capture(len(pkts)) + + # + # enable the FIB walk process to converge the FIB + # + self.vapi.ppcli("test fib-walk-process enable") + self.pg0.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg3.get_capture(len(pkts)) + + # + # put the connecteds back + # + self.pg2.admin_up() + self.pg2.config_ip6() + + self.pg0.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg2._get_capture(1) + rx1 = self.pg3._get_capture(1) + self.assertNotEqual(0, len(rx0)) + self.assertNotEqual(0, len(rx1)) + + +class TestMPLSL2(VppTestCase): + """ MPLS-L2 """ + + def setUp(self): + super(TestMPLSL2, self).setUp() + + # create 2 pg interfaces + self.create_pg_interfaces(range(2)) + + # create the default MPLS table + self.tables = [] + tbl = VppMplsTable(self, 0) + tbl.add_vpp_config() + self.tables.append(tbl) + + # use pg0 as the core facing interface + self.pg0.admin_up() + self.pg0.config_ip4() + self.pg0.resolve_arp() + self.pg0.enable_mpls() + + # use the other 2 for customer facing L2 links + for i in self.pg_interfaces[1:]: + i.admin_up() + + def tearDown(self): + for i in self.pg_interfaces[1:]: + i.admin_down() + + self.pg0.disable_mpls() + self.pg0.unconfig_ip4() + self.pg0.admin_down() + super(TestMPLSL2, self).tearDown() + + def verify_capture_tunneled_ethernet(self, capture, sent, mpls_labels, + ttl=255, top=None): + if top is None: + top = len(mpls_labels) - 1 + + capture = verify_filter(capture, sent) + + self.assertEqual(len(capture), len(sent)) + + for i in range(len(capture)): + tx = sent[i] + rx = capture[i] + + # the MPLS TTL is 255 since it enters a new tunnel + verify_mpls_stack(self, rx, mpls_labels, ttl, top) + + tx_eth = tx[Ether] + rx_eth = Ether(str(rx[MPLS].payload)) + + self.assertEqual(rx_eth.src, tx_eth.src) + self.assertEqual(rx_eth.dst, tx_eth.dst) + + def test_vpws(self): + """ Virtual Private Wire Service """ + + # + # Create an MPLS tunnel that pushes 1 label + # + mpls_tun_1 = VppMPLSTunnelInterface(self, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[42])], + is_l2=1) + mpls_tun_1.add_vpp_config() + mpls_tun_1.admin_up() + + # + # Create a label entry to for 55 that does L2 input to the tunnel + # + route_55_eos = VppMplsRoute( + self, 55, 1, + [VppRoutePath("0.0.0.0", + mpls_tun_1.sw_if_index, + is_interface_rx=1, + proto=DpoProto.DPO_PROTO_ETHERNET)]) + route_55_eos.add_vpp_config() + + # + # Cross-connect the tunnel with one of the customers L2 interfaces + # + self.vapi.sw_interface_set_l2_xconnect(self.pg1.sw_if_index, + mpls_tun_1.sw_if_index, + enable=1) + self.vapi.sw_interface_set_l2_xconnect(mpls_tun_1.sw_if_index, + self.pg1.sw_if_index, + enable=1) + + # + # inject a packet from the core + # + pcore = (Ether(dst=self.pg0.local_mac, + src=self.pg0.remote_mac) / + MPLS(label=55, ttl=64) / + Ether(dst="00:00:de:ad:ba:be", + src="00:00:de:ad:be:ef") / + IP(src="10.10.10.10", dst="11.11.11.11") / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + self.pg0.add_stream(pcore * 65) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg1.get_capture(65) + tx = pcore[MPLS].payload + + self.assertEqual(rx0[0][Ether].dst, tx[Ether].dst) + self.assertEqual(rx0[0][Ether].src, tx[Ether].src) + + # + # Inject a packet from the custoer/L2 side + # + self.pg1.add_stream(tx * 65) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg0.get_capture(65) + + self.verify_capture_tunneled_ethernet(rx0, tx*65, [42]) + + def test_vpls(self): + """ Virtual Private LAN Service """ + # + # Create an L2 MPLS tunnel + # + mpls_tun = VppMPLSTunnelInterface(self, + [VppRoutePath(self.pg0.remote_ip4, + self.pg0.sw_if_index, + labels=[42])], + is_l2=1) + mpls_tun.add_vpp_config() + mpls_tun.admin_up() + + # + # Create a label entry to for 55 that does L2 input to the tunnel + # + route_55_eos = VppMplsRoute( + self, 55, 1, + [VppRoutePath("0.0.0.0", + mpls_tun.sw_if_index, + is_interface_rx=1, + proto=DpoProto.DPO_PROTO_ETHERNET)]) + route_55_eos.add_vpp_config() + + # + # add to tunnel to the customers bridge-domain + # + self.vapi.sw_interface_set_l2_bridge(mpls_tun.sw_if_index, + bd_id=1) + self.vapi.sw_interface_set_l2_bridge(self.pg1.sw_if_index, + bd_id=1) + + # + # Packet from the customer interface and from the core + # + p_cust = (Ether(dst="00:00:de:ad:ba:be", + src="00:00:de:ad:be:ef") / + IP(src="10.10.10.10", dst="11.11.11.11") / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + p_core = (Ether(src="00:00:de:ad:ba:be", + dst="00:00:de:ad:be:ef") / + IP(dst="10.10.10.10", src="11.11.11.11") / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + # + # The BD is learning, so send in one of each packet to learn + # + p_core_encap = (Ether(dst=self.pg0.local_mac, + src=self.pg0.remote_mac) / + MPLS(label=55, ttl=64) / + p_core) + + self.pg1.add_stream(p_cust) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + self.pg0.add_stream(p_core_encap) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + # we've learnt this so expect it be be forwarded + rx0 = self.pg1.get_capture(1) + + self.assertEqual(rx0[0][Ether].dst, p_core[Ether].dst) + self.assertEqual(rx0[0][Ether].src, p_core[Ether].src) + + # + # now a stream in each direction + # + self.pg1.add_stream(p_cust * 65) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx0 = self.pg0.get_capture(65) + + self.verify_capture_tunneled_ethernet(rx0, p_cust*65, [42]) + + # + # remove interfaces from customers bridge-domain + # + self.vapi.sw_interface_set_l2_bridge(mpls_tun.sw_if_index, + bd_id=1, + enable=0) + self.vapi.sw_interface_set_l2_bridge(self.pg1.sw_if_index, + bd_id=1, + enable=0) + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)