import unittest
import socket
-from framework import VppTestCase, VppTestRunner
+from framework import VppTestCase, VppTestRunner, running_extended_tests
+from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \
VppMplsTable, VppIpMRoute, VppMRoutePath, VppIpTable, \
- MRouteEntryFlags, MRouteItfFlags, MPLS_LABEL_INVALID, DpoProto
+ MRouteEntryFlags, MRouteItfFlags, MPLS_LABEL_INVALID, \
+ VppMplsLabel
from vpp_bier import *
+from vpp_udp_encap import *
from scapy.packet import Raw
from scapy.layers.l2 import Ether
i.admin_down()
super(TestBier, self).tearDown()
- def send_and_assert_no_replies(self, intf, pkts, remark):
- intf.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- for i in self.pg_interfaces:
- i.assert_nothing_captured(remark=remark)
-
- def send_and_expect(self, input, pkts, output):
- self.vapi.cli("trace add bier-mpls-lookup 10")
- input.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- rx = output.get_capture(len(pkts))
-
- def test_bier_midpoint(self):
+ def bier_midpoint(self, hdr_len_id, n_bytes, max_bp):
"""BIER midpoint"""
#
# Add a BIER table for sub-domain 0, set 0, and BSL 256
#
- bti = VppBierTableID(0, 0, BIERLength.BIER_LEN_256)
+ bti = VppBierTableID(0, 0, hdr_len_id)
bt = VppBierTable(self, bti, 77)
bt.add_vpp_config()
#
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
MPLS(label=77, ttl=255) /
- BIER(length=BIERLength.BIER_LEN_256,
- BitString=chr(0)*64) /
+ BIER(length=hdr_len_id) /
IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6) /
UDP(sport=1234, dport=1234) /
Raw())
#
nh_routes = []
bier_routes = []
- for i in range(1, 256):
+ for i in range(1, max_bp+1):
nh = "10.0.%d.%d" % (i / 255, i % 255)
- nh_routes.append(VppIpRoute(self, nh, 32,
- [VppRoutePath(self.pg1.remote_ip4,
- self.pg1.sw_if_index,
- labels=[2000+i])]))
+ nh_routes.append(
+ VppIpRoute(self, nh, 32,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index,
+ labels=[VppMplsLabel(2000+i)])]))
nh_routes[-1].add_vpp_config()
- bier_routes.append(VppBierRoute(self, bti, i, nh, 100+i))
+ bier_routes.append(
+ VppBierRoute(self, bti, i,
+ [VppRoutePath(nh, 0xffffffff,
+ labels=[VppMplsLabel(100+i)])]))
bier_routes[-1].add_vpp_config()
#
- # A packet with all bits set gets spat out to BP:1
+ # A packet with all bits set gets replicated once for each bit
#
- p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
- MPLS(label=77, ttl=255) /
- BIER(length=BIERLength.BIER_LEN_256) /
- IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6) /
- UDP(sport=1234, dport=1234) /
- Raw())
- pkts = [p]
+ pkt_sizes = [64, 1400]
- self.pg0.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ for pkt_size in pkt_sizes:
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ MPLS(label=77, ttl=255) /
+ BIER(length=hdr_len_id, BitString=chr(255)*n_bytes) /
+ IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6) /
+ UDP(sport=1234, dport=1234) /
+ Raw(chr(5) * pkt_size))
+ pkts = p
+
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg1.get_capture(max_bp)
+
+ for rxp in rx:
+ #
+ # The packets are not required to be sent in bit-position order
+ # when we setup the routes above we used the bit-position to
+ # construct the out-label. so use that here to determine the BP
+ #
+ olabel = rxp[MPLS]
+ bp = olabel.label - 2000
+
+ blabel = olabel[MPLS].payload
+ self.assertEqual(blabel.label, 100+bp)
+ self.assertEqual(blabel.ttl, 254)
+
+ bier_hdr = blabel[MPLS].payload
+
+ self.assertEqual(bier_hdr.id, 5)
+ self.assertEqual(bier_hdr.version, 0)
+ self.assertEqual(bier_hdr.length, hdr_len_id)
+ self.assertEqual(bier_hdr.entropy, 0)
+ self.assertEqual(bier_hdr.OAM, 0)
+ self.assertEqual(bier_hdr.RSV, 0)
+ self.assertEqual(bier_hdr.DSCP, 0)
+ self.assertEqual(bier_hdr.Proto, 5)
+
+ # The bit-string should consist only of the BP given by i.
+ byte_array = ['\0'] * (n_bytes)
+ byte_val = chr(1 << (bp - 1) % 8)
+ byte_pos = n_bytes - (((bp - 1) / 8) + 1)
+ byte_array[byte_pos] = byte_val
+ bitstring = ''.join(byte_array)
+
+ self.assertEqual(len(bitstring), len(bier_hdr.BitString))
+ self.assertEqual(bitstring, bier_hdr.BitString)
- rx = self.pg1.get_capture(255)
-
- for rxp in rx:
- #
- # The packets are not required to be sent in bit-position order
- # when we setup the routes above we used the bit-position to
- # construct the out-label. so use that here to determine the BP
- #
- olabel = rxp[MPLS]
- bp = olabel.label - 2000
-
- blabel = olabel[MPLS].payload
- self.assertEqual(blabel.label, 100+bp)
-
- bier_hdr = blabel[MPLS].payload
-
- self.assertEqual(bier_hdr.id, 5)
- self.assertEqual(bier_hdr.version, 0)
- self.assertEqual(bier_hdr.length, BIERLength.BIER_LEN_256)
- self.assertEqual(bier_hdr.entropy, 0)
- self.assertEqual(bier_hdr.OAM, 0)
- self.assertEqual(bier_hdr.RSV, 0)
- self.assertEqual(bier_hdr.DSCP, 0)
- self.assertEqual(bier_hdr.Proto, 5)
-
- # The bit-string should consist only of the BP given by i.
- i = 0
- bitstring = ""
- bpi = bp - 1
- while (i < bpi/8):
- bitstring = chr(0) + bitstring
- i += 1
- bitstring = chr(1 << bpi % 8) + bitstring
-
- while len(bitstring) < 32:
- bitstring = chr(0) + bitstring
-
- self.assertEqual(len(bitstring), len(bier_hdr.BitString))
- self.assertEqual(bitstring, bier_hdr.BitString)
+ #
+ # cleanup. not strictly necessary, but it's much quicker this way
+ # becuase the bier_fib_dump and ip_fib_dump will be empty when the
+ # auto-cleanup kicks in
+ #
+ for br in bier_routes:
+ br.remove_vpp_config()
+ for nhr in nh_routes:
+ nhr.remove_vpp_config()
+
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_bier_midpoint_1024(self):
+ """BIER midpoint BSL:1024"""
+ self.bier_midpoint(BIERLength.BIER_LEN_1024, 128, 1024)
+
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_bier_midpoint_512(self):
+ """BIER midpoint BSL:512"""
+ self.bier_midpoint(BIERLength.BIER_LEN_512, 64, 512)
+
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_bier_midpoint_256(self):
+ """BIER midpoint BSL:256"""
+ self.bier_midpoint(BIERLength.BIER_LEN_256, 32, 256)
+
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_bier_midpoint_128(self):
+ """BIER midpoint BSL:128"""
+ self.bier_midpoint(BIERLength.BIER_LEN_128, 16, 128)
+
+ def test_bier_midpoint_64(self):
+ """BIER midpoint BSL:64"""
+ self.bier_midpoint(BIERLength.BIER_LEN_64, 8, 64)
+
+ def test_bier_load_balance(self):
+ """BIER load-balance"""
+
+ #
+ # Add a BIER table for sub-domain 0, set 0, and BSL 256
+ #
+ bti = VppBierTableID(0, 0, BIERLength.BIER_LEN_64)
+ bt = VppBierTable(self, bti, 77)
+ bt.add_vpp_config()
+
+ #
+ # packets with varying entropy
+ #
+ pkts = []
+ for ii in range(257):
+ pkts.append((Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ MPLS(label=77, ttl=255) /
+ BIER(length=BIERLength.BIER_LEN_64,
+ entropy=ii,
+ BitString=chr(255)*16) /
+ IPv6(src=self.pg0.remote_ip6,
+ dst=self.pg0.remote_ip6) /
+ UDP(sport=1234, dport=1234) /
+ Raw()))
+
+ #
+ # 4 next hops
+ #
+ nhs = [{'ip': "10.0.0.1", 'label': 201},
+ {'ip': "10.0.0.2", 'label': 202},
+ {'ip': "10.0.0.3", 'label': 203},
+ {'ip': "10.0.0.4", 'label': 204}]
+
+ for nh in nhs:
+ ipr = VppIpRoute(
+ self, nh['ip'], 32,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index,
+ labels=[VppMplsLabel(nh['label'])])])
+ ipr.add_vpp_config()
+
+ bier_route = VppBierRoute(
+ self, bti, 1,
+ [VppRoutePath(nhs[0]['ip'], 0xffffffff,
+ labels=[VppMplsLabel(101)]),
+ VppRoutePath(nhs[1]['ip'], 0xffffffff,
+ labels=[VppMplsLabel(101)])])
+ bier_route.add_vpp_config()
+
+ rx = self.send_and_expect(self.pg0, pkts, self.pg1)
+
+ #
+ # we should have recieved a packet from each neighbor
+ #
+ for nh in nhs[:2]:
+ self.assertTrue(sum(p[MPLS].label == nh['label'] for p in rx))
+
+ #
+ # add the other paths
+ #
+ bier_route.update_paths(
+ [VppRoutePath(nhs[0]['ip'], 0xffffffff,
+ labels=[VppMplsLabel(101)]),
+ VppRoutePath(nhs[1]['ip'], 0xffffffff,
+ labels=[VppMplsLabel(101)]),
+ VppRoutePath(nhs[2]['ip'], 0xffffffff,
+ labels=[VppMplsLabel(101)]),
+ VppRoutePath(nhs[3]['ip'], 0xffffffff,
+ labels=[VppMplsLabel(101)])])
+
+ rx = self.send_and_expect(self.pg0, pkts, self.pg1)
+ for nh in nhs:
+ self.assertTrue(sum(p[MPLS].label == nh['label'] for p in rx))
+
+ #
+ # remove first two paths
+ #
+ bier_route.remove_path(VppRoutePath(nhs[0]['ip'], 0xffffffff,
+ labels=[VppMplsLabel(101)]))
+ bier_route.remove_path(VppRoutePath(nhs[1]['ip'], 0xffffffff,
+ labels=[VppMplsLabel(101)]))
+
+ rx = self.send_and_expect(self.pg0, pkts, self.pg1)
+ for nh in nhs[2:]:
+ self.assertTrue(sum(p[MPLS].label == nh['label'] for p in rx))
+
+ #
+ # remove the last of the paths, deleteing the entry
+ #
+ bier_route.remove_all_paths()
+
+ self.send_and_assert_no_replies(self.pg0, pkts)
def test_bier_head(self):
"""BIER head"""
ip_route_1 = VppIpRoute(self, nh1, 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
- labels=[2001])])
+ labels=[VppMplsLabel(2001)])])
ip_route_2 = VppIpRoute(self, nh2, 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
- labels=[2002])])
+ labels=[VppMplsLabel(2002)])])
ip_route_1.add_vpp_config()
ip_route_2.add_vpp_config()
- bier_route_1 = VppBierRoute(self, bti, 1, nh1, 101)
- bier_route_2 = VppBierRoute(self, bti, 2, nh2, 102)
+ bier_route_1 = VppBierRoute(self, bti, 1,
+ [VppRoutePath(nh1, 0xffffffff,
+ labels=[VppMplsLabel(101)])])
+ bier_route_2 = VppBierRoute(self, bti, 2,
+ [VppRoutePath(nh2, 0xffffffff,
+ labels=[VppMplsLabel(102)])])
bier_route_1.add_vpp_config()
bier_route_2.add_vpp_config()
route_ing_232_1_1_1.add_vpp_config()
#
- # inject a packet an IP. We expect it to be BIER encapped,
+ # inject an IP packet. We expect it to be BIER encapped and
# replicated.
#
p = (Ether(dst=self.pg0.local_mac,
rx = self.pg1.get_capture(2)
+ #
+ # Encap Stack is; eth, MPLS, MPLS, BIER
+ #
+ igp_mpls = rx[0][MPLS]
+ self.assertEqual(igp_mpls.label, 2001)
+ self.assertEqual(igp_mpls.ttl, 64)
+ self.assertEqual(igp_mpls.s, 0)
+ bier_mpls = igp_mpls[MPLS].payload
+ self.assertEqual(bier_mpls.label, 101)
+ self.assertEqual(bier_mpls.ttl, 64)
+ self.assertEqual(bier_mpls.s, 1)
+ self.assertEqual(rx[0][BIER].length, 2)
+
+ igp_mpls = rx[1][MPLS]
+ self.assertEqual(igp_mpls.label, 2002)
+ self.assertEqual(igp_mpls.ttl, 64)
+ self.assertEqual(igp_mpls.s, 0)
+ bier_mpls = igp_mpls[MPLS].payload
+ self.assertEqual(bier_mpls.label, 102)
+ self.assertEqual(bier_mpls.ttl, 64)
+ self.assertEqual(bier_mpls.s, 1)
+ self.assertEqual(rx[0][BIER].length, 2)
+
def test_bier_tail(self):
"""BIER Tail"""
#
# BIER route in table that's for-us
#
- bier_route_1 = VppBierRoute(self, bti, 1, "0.0.0.0", 0,
- disp_table=8)
+ bier_route_1 = VppBierRoute(
+ self, bti, 1,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ proto=DpoProto.DPO_PROTO_BIER,
+ nh_table_id=8)])
bier_route_1.add_vpp_config()
#
#
bier_de_1 = VppBierDispEntry(self, bdt.id, 99,
BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ DpoProto.DPO_PROTO_BIER,
"0.0.0.0", 0, rpf_id=8192)
bier_de_1.add_vpp_config()
#
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
MPLS(label=77, ttl=255) /
- BIER(length=BIERLength.BIER_LEN_256, BFRID=99) /
+ BIER(length=BIERLength.BIER_LEN_256,
+ BitString=chr(255)*32,
+ BFRID=99) /
IP(src="1.1.1.1", dst="232.1.1.1") /
UDP(sport=1234, dport=1234) /
Raw())
self.send_and_expect(self.pg0, [p], self.pg1)
- def test_bier_e2e(self):
- """ BIER end-to-end """
+ #
+ # A packet that does not match the Disposition entry gets dropped
+ #
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ MPLS(label=77, ttl=255) /
+ BIER(length=BIERLength.BIER_LEN_256,
+ BitString=chr(255)*32,
+ BFRID=77) /
+ IP(src="1.1.1.1", dst="232.1.1.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+ self.send_and_assert_no_replies(self.pg0, p*2,
+ "no matching disposition entry")
+
+ #
+ # Add the default route to the disposition table
+ #
+ bier_de_2 = VppBierDispEntry(self, bdt.id, 0,
+ BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ DpoProto.DPO_PROTO_BIER,
+ "0.0.0.0", 0, rpf_id=8192)
+ bier_de_2.add_vpp_config()
+
+ #
+ # now the previous packet is forwarded
+ #
+ self.send_and_expect(self.pg0, [p], self.pg1)
+
+ def bier_e2e(self, hdr_len_id, n_bytes, max_bp):
+ """ BIER end-to-end"""
#
# Add a BIER table for sub-domain 0, set 0, and BSL 256
#
- bti = VppBierTableID(0, 0, BIERLength.BIER_LEN_256)
+ bti = VppBierTableID(0, 0, hdr_len_id)
bt = VppBierTable(self, bti, 77)
bt.add_vpp_config()
+ lowest = ['\0'] * (n_bytes)
+ lowest[-1] = chr(1)
+ highest = ['\0'] * (n_bytes)
+ highest[0] = chr(128)
+
#
- # Impostion Sets bit string 101010101....
- # sender 333
+ # Impostion Sets bit strings
#
- bi = VppBierImp(self, bti, 333, chr(0x5) * 32)
- bi.add_vpp_config()
+ bi_low = VppBierImp(self, bti, 333, lowest)
+ bi_low.add_vpp_config()
+ bi_high = VppBierImp(self, bti, 334, highest)
+ bi_high.add_vpp_config()
#
# Add a multicast route that will forward into the BIER doamin
VppMRoutePath(0xffffffff,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
proto=DpoProto.DPO_PROTO_BIER,
- bier_imp=bi.bi_index)])
+ bier_imp=bi_low.bi_index)])
route_ing_232_1_1_1.add_vpp_config()
+ route_ing_232_1_1_2 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.2", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ paths=[VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(0xffffffff,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_BIER,
+ bier_imp=bi_high.bi_index)])
+ route_ing_232_1_1_2.add_vpp_config()
#
# disposition table 8
bdt.add_vpp_config()
#
- # BIER route in table that's for-us, resolving through
+ # BIER routes in table that are for-us, resolving through
# disp table 8.
#
- bier_route_1 = VppBierRoute(self, bti, 1, "0.0.0.0",
- MPLS_LABEL_INVALID,
- disp_table=8)
+ bier_route_1 = VppBierRoute(
+ self, bti, 1,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ proto=DpoProto.DPO_PROTO_BIER,
+ nh_table_id=8)])
bier_route_1.add_vpp_config()
+ bier_route_max = VppBierRoute(self, bti, max_bp,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ nh_table_id=8)])
+ bier_route_max.add_vpp_config()
#
# An entry in the disposition table for sender 333
#
bier_de_1 = VppBierDispEntry(self, bdt.id, 333,
BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ DpoProto.DPO_PROTO_BIER,
"0.0.0.0", 10, rpf_id=8192)
bier_de_1.add_vpp_config()
+ bier_de_1 = VppBierDispEntry(self, bdt.id, 334,
+ BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ DpoProto.DPO_PROTO_BIER,
+ "0.0.0.0", 10, rpf_id=8193)
+ bier_de_1.add_vpp_config()
#
- # Add a multicast route that will forward the traffic
+ # Add a multicast routes that will forward the traffic
# post-disposition
#
route_eg_232_1_1_1 = VppIpMRoute(
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
route_eg_232_1_1_1.add_vpp_config()
route_eg_232_1_1_1.update_rpf_id(8192)
+ route_eg_232_1_1_2 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.2", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ table_id=10,
+ paths=[VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ route_eg_232_1_1_2.add_vpp_config()
+ route_eg_232_1_1_2.update_rpf_id(8193)
#
# inject a packet in VRF-0. We expect it to be BIER encapped,
# replicated, then hit the disposition and be forwarded
# out of VRF 10, i.e. on pg1
#
+ p = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src="1.1.1.1", dst="232.1.1.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw(chr(5) * 32))
+
+ rx = self.send_and_expect(self.pg0, p*65, self.pg1)
+
+ self.assertEqual(rx[0][IP].src, "1.1.1.1")
+ self.assertEqual(rx[0][IP].dst, "232.1.1.1")
+
+ p = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src="1.1.1.1", dst="232.1.1.2") /
+ UDP(sport=1234, dport=1234) /
+ Raw(chr(5) * 512))
+
+ rx = self.send_and_expect(self.pg0, p*65, self.pg1)
+ self.assertEqual(rx[0][IP].src, "1.1.1.1")
+ self.assertEqual(rx[0][IP].dst, "232.1.1.2")
+
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_bier_e2e_1024(self):
+ """ BIER end-to-end BSL:1024"""
+ self.bier_e2e(BIERLength.BIER_LEN_1024, 128, 1024)
+
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_bier_e2e_512(self):
+ """ BIER end-to-end BSL:512"""
+ self.bier_e2e(BIERLength.BIER_LEN_512, 64, 512)
+
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_bier_e2e_256(self):
+ """ BIER end-to-end BSL:256"""
+ self.bier_e2e(BIERLength.BIER_LEN_256, 32, 256)
+
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_bier_e2e_128(self):
+ """ BIER end-to-end BSL:128"""
+ self.bier_e2e(BIERLength.BIER_LEN_128, 16, 128)
+
+ def test_bier_e2e_64(self):
+ """ BIER end-to-end BSL:64"""
+ self.bier_e2e(BIERLength.BIER_LEN_64, 8, 64)
+
+ def test_bier_head_o_udp(self):
+ """BIER head over UDP"""
+
+ #
+ # Add a BIER table for sub-domain 1, set 0, and BSL 256
+ #
+ bti = VppBierTableID(1, 0, BIERLength.BIER_LEN_256)
+ bt = VppBierTable(self, bti, 77)
+ bt.add_vpp_config()
+
+ #
+ # 1 bit positions via 1 next hops
+ #
+ nh1 = "10.0.0.1"
+ ip_route = VppIpRoute(self, nh1, 32,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index,
+ labels=[VppMplsLabel(2001)])])
+ ip_route.add_vpp_config()
+
+ udp_encap = VppUdpEncap(self, 4,
+ self.pg0.local_ip4,
+ nh1,
+ 330, 8138)
+ udp_encap.add_vpp_config()
+
+ bier_route = VppBierRoute(
+ self, bti, 1,
+ [VppRoutePath("0.0.0.0",
+ 0xFFFFFFFF,
+ is_udp_encap=1,
+ next_hop_id=4)])
+ bier_route.add_vpp_config()
+
+ #
+ # An 2 imposition objects with all bit-positions set
+ # only use the second, but creating 2 tests with a non-zero
+ # value index in the route add
+ #
+ bi = VppBierImp(self, bti, 333, chr(0xff) * 32)
+ bi.add_vpp_config()
+ bi2 = VppBierImp(self, bti, 334, chr(0xff) * 32)
+ bi2.add_vpp_config()
+
+ #
+ # Add a multicast route that will forward into the BIER doamin
+ #
+ route_ing_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ paths=[VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(0xffffffff,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_BIER,
+ bier_imp=bi2.bi_index)])
+ route_ing_232_1_1_1.add_vpp_config()
+
+ #
+ # inject a packet an IP. We expect it to be BIER and UDP encapped,
+ #
p = (Ether(dst=self.pg0.local_mac,
src=self.pg0.remote_mac) /
IP(src="1.1.1.1", dst="232.1.1.1") /
UDP(sport=1234, dport=1234))
- self.send_and_expect(self.pg0, p*65, self.pg1)
+ self.pg0.add_stream([p])
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg1.get_capture(1)
+
+ #
+ # Encap Stack is, eth, IP, UDP, BIFT, BIER
+ #
+ self.assertEqual(rx[0][IP].src, self.pg0.local_ip4)
+ self.assertEqual(rx[0][IP].dst, nh1)
+ self.assertEqual(rx[0][UDP].sport, 330)
+ self.assertEqual(rx[0][UDP].dport, 8138)
+ self.assertEqual(rx[0][BIFT].bsl, 2)
+ self.assertEqual(rx[0][BIFT].sd, 1)
+ self.assertEqual(rx[0][BIFT].set, 0)
+ self.assertEqual(rx[0][BIFT].ttl, 64)
+ self.assertEqual(rx[0][BIER].length, 2)
+
+ def test_bier_tail_o_udp(self):
+ """BIER Tail over UDP"""
+
+ #
+ # Add a BIER table for sub-domain 0, set 0, and BSL 256
+ #
+ bti = VppBierTableID(1, 0, BIERLength.BIER_LEN_256)
+ bt = VppBierTable(self, bti, MPLS_LABEL_INVALID)
+ bt.add_vpp_config()
+
+ #
+ # disposition table
+ #
+ bdt = VppBierDispTable(self, 8)
+ bdt.add_vpp_config()
+
+ #
+ # BIER route in table that's for-us
+ #
+ bier_route_1 = VppBierRoute(
+ self, bti, 1,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ proto=DpoProto.DPO_PROTO_BIER,
+ nh_table_id=8)])
+ bier_route_1.add_vpp_config()
+
+ #
+ # An entry in the disposition table
+ #
+ bier_de_1 = VppBierDispEntry(self, bdt.id, 99,
+ BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ DpoProto.DPO_PROTO_BIER,
+ "0.0.0.0", 0, rpf_id=8192)
+ bier_de_1.add_vpp_config()
+
+ #
+ # A multicast route to forward post BIER disposition
+ #
+ route_eg_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ paths=[VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ route_eg_232_1_1_1.add_vpp_config()
+ route_eg_232_1_1_1.update_rpf_id(8192)
+
+ #
+ # A packet with all bits set gets spat out to BP:1
+ #
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
+ UDP(sport=333, dport=8138) /
+ BIFT(sd=1, set=0, bsl=2, ttl=255) /
+ BIER(length=BIERLength.BIER_LEN_256,
+ BitString=chr(255)*32,
+ BFRID=99) /
+ IP(src="1.1.1.1", dst="232.1.1.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+
+ rx = self.send_and_expect(self.pg0, [p], self.pg1)
if __name__ == '__main__':
Code Review / vpp.git / blobdiff