-#!/usr/bin/env python
+#!/usr/bin/env python3
import unittest
-import socket
+from config import config
from framework import VppTestCase, VppTestRunner
-from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \
- VppMplsTable, VppIpMRoute, VppMRoutePath, VppIpTable, \
- MRouteEntryFlags, MRouteItfFlags, MPLS_LABEL_INVALID, DpoProto
-from vpp_bier import *
-from vpp_udp_encap import *
-
+from vpp_ip import DpoProto
+from vpp_ip_route import (
+ VppIpRoute,
+ VppRoutePath,
+ VppMplsTable,
+ VppIpMRoute,
+ VppMRoutePath,
+ VppIpTable,
+ MPLS_LABEL_INVALID,
+ VppMplsLabel,
+ FibPathProto,
+ FibPathType,
+)
+from vpp_bier import (
+ BIER_HDR_PAYLOAD,
+ VppBierImp,
+ VppBierDispEntry,
+ VppBierDispTable,
+ VppBierTable,
+ VppBierTableID,
+ VppBierRoute,
+)
+from vpp_udp_encap import VppUdpEncap
+from vpp_papi import VppEnum
+
+import scapy.compat
from scapy.packet import Raw
from scapy.layers.l2 import Ether
-from scapy.layers.inet import IP, UDP, ICMP
+from scapy.layers.inet import IP, UDP
from scapy.layers.inet6 import IPv6
from scapy.contrib.mpls import MPLS
-from scapy.contrib.bier import *
+from scapy.contrib.bier import BIER, BIERLength, BIFT
+
+NUM_PKTS = 67
class TestBFIB(VppTestCase):
- """ BIER FIB Test Case """
+ """BIER FIB Test Case"""
def test_bfib(self):
- """ BFIB Unit Tests """
+ """BFIB Unit Tests"""
error = self.vapi.cli("test bier")
if error:
self.logger.critical(error)
- self.assertEqual(error.find("Failed"), -1)
+ self.assertNotIn("Failed", error)
class TestBier(VppTestCase):
- """ BIER Test Case """
+ """BIER Test Case"""
def setUp(self):
super(TestBier, self).setUp()
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))
- return rx
-
- 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()
#
# A packet with no bits set 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(0)*64) /
- IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6) /
- UDP(sport=1234, dport=1234) /
- Raw())
+ p = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=77, ttl=255)
+ / BIER(length=hdr_len_id)
+ / IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6)
+ / UDP(sport=1234, dport=1234)
+ / Raw()
+ )
pkts = [p]
- self.send_and_assert_no_replies(self.pg0, pkts,
- "Empty Bit-String")
+ self.send_and_assert_no_replies(self.pg0, pkts, "Empty Bit-String")
#
# Add a BIER route for each bit-position in the table via a different
#
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,
- [VppRoutePath(nh, 0xffffffff,
- labels=[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=scapy.compat.chb(255) * n_bytes)
+ / IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6)
+ / UDP(sport=1234, dport=1234)
+ / Raw(scapy.compat.chb(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 = [b"\0"] * (n_bytes)
+ byte_val = scapy.compat.chb(1 << (bp - 1) % 8)
+ byte_pos = n_bytes - (((bp - 1) // 8) + 1)
+ byte_array[byte_pos] = byte_val
+ bitstring = b"".join(byte_array)
+
+ 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
+ # because 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(config.extended, "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(config.extended, "part of extended tests")
+ def test_bier_midpoint_512(self):
+ """BIER midpoint BSL:512"""
+ self.bier_midpoint(BIERLength.BIER_LEN_512, 64, 512)
- 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)
- 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, 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)
+ @unittest.skipUnless(config.extended, "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(config.extended, "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=scapy.compat.chb(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"""
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
#
# Add a BIER table for sub-domain 0, set 0, and BSL 256
#
#
nh1 = "10.0.0.1"
nh2 = "10.0.0.2"
- ip_route_1 = VppIpRoute(self, nh1, 32,
- [VppRoutePath(self.pg1.remote_ip4,
- self.pg1.sw_if_index,
- labels=[2001])])
- ip_route_2 = VppIpRoute(self, nh2, 32,
- [VppRoutePath(self.pg1.remote_ip4,
- self.pg1.sw_if_index,
- labels=[2002])])
+ ip_route_1 = VppIpRoute(
+ self,
+ nh1,
+ 32,
+ [
+ VppRoutePath(
+ self.pg1.remote_ip4,
+ self.pg1.sw_if_index,
+ labels=[VppMplsLabel(2001)],
+ )
+ ],
+ )
+ ip_route_2 = VppIpRoute(
+ self,
+ nh2,
+ 32,
+ [
+ VppRoutePath(
+ self.pg1.remote_ip4,
+ self.pg1.sw_if_index,
+ labels=[VppMplsLabel(2002)],
+ )
+ ],
+ )
ip_route_1.add_vpp_config()
ip_route_2.add_vpp_config()
- bier_route_1 = VppBierRoute(self, bti, 1,
- [VppRoutePath(nh1, 0xffffffff,
- labels=[101])])
- bier_route_2 = VppBierRoute(self, bti, 2,
- [VppRoutePath(nh2, 0xffffffff,
- labels=[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()
#
# An imposition object with both bit-positions set
#
- bi = VppBierImp(self, bti, 333, chr(0x3) * 32)
+ bi = VppBierImp(self, bti, 333, scapy.compat.chb(0x3) * 32)
bi.add_vpp_config()
#
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=bi.bi_index)])
+ "232.1.1.1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ paths=[
+ VppMRoutePath(
+ self.pg0.sw_if_index, MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT
+ ),
+ VppMRoutePath(
+ 0xFFFFFFFF,
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_BIER,
+ type=FibPathType.FIB_PATH_TYPE_BIER_IMP,
+ bier_imp=bi.bi_index,
+ ),
+ ],
+ )
route_ing_232_1_1_1.add_vpp_config()
#
# inject an IP packet. We expect it to be BIER encapped and
# replicated.
#
- 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))
+ 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.pg0.add_stream([p])
self.pg_enable_capture(self.pg_interfaces)
def test_bier_tail(self):
"""BIER Tail"""
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
#
# Add a BIER table for sub-domain 0, set 0, and BSL 256
#
#
# BIER route in table that's for-us
#
- bier_route_1 = VppBierRoute(self, bti, 1,
- [VppRoutePath("0.0.0.0",
- 0xffffffff,
- nh_table_id=8)])
+ bier_route_1 = VppBierRoute(
+ self,
+ bti,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ 0xFFFFFFFF,
+ proto=FibPathProto.FIB_PATH_NH_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,
- "0.0.0.0", 0, rpf_id=8192)
+ bier_de_1 = VppBierDispEntry(
+ self,
+ bdt.id,
+ 99,
+ BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ FibPathProto.FIB_PATH_NH_PROTO_BIER,
+ "0.0.0.0",
+ 0,
+ rpf_id=8192,
+ )
bier_de_1.add_vpp_config()
#
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)])
+ "232.1.1.1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ paths=[
+ VppMRoutePath(
+ self.pg1.sw_if_index, MRouteItfFlags.MFIB_API_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) /
- MPLS(label=77, ttl=255) /
- BIER(length=BIERLength.BIER_LEN_256, BFRID=99) /
- IP(src="1.1.1.1", dst="232.1.1.1") /
- UDP(sport=1234, dport=1234) /
- Raw())
+ p = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=77, ttl=255)
+ / BIER(
+ length=BIERLength.BIER_LEN_256,
+ BitString=scapy.compat.chb(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)
#
# 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, 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")
+ p = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=77, ttl=255)
+ / BIER(
+ length=BIERLength.BIER_LEN_256,
+ BitString=scapy.compat.chb(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,
- "0.0.0.0", 0, rpf_id=8192)
+ bier_de_2 = VppBierDispEntry(
+ self,
+ bdt.id,
+ 0,
+ BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ FibPathProto.FIB_PATH_NH_PROTO_BIER,
+ "0.0.0.0",
+ 0,
+ rpf_id=8192,
+ )
bier_de_2.add_vpp_config()
#
#
self.send_and_expect(self.pg0, [p], self.pg1)
- def test_bier_e2e(self):
- """ BIER end-to-end """
+ #
+ # A multicast route to forward post BIER disposition that needs
+ # a check against sending back into the BIER core
+ #
+ bi = VppBierImp(self, bti, 333, scapy.compat.chb(0x3) * 32)
+ bi.add_vpp_config()
+
+ route_eg_232_1_1_2 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.2",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ paths=[
+ VppMRoutePath(
+ 0xFFFFFFFF,
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
+ proto=DpoProto.DPO_PROTO_BIER,
+ type=FibPathType.FIB_PATH_TYPE_BIER_IMP,
+ bier_imp=bi.bi_index,
+ ),
+ VppMRoutePath(
+ self.pg1.sw_if_index, MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD
+ ),
+ ],
+ )
+ route_eg_232_1_1_2.add_vpp_config()
+ route_eg_232_1_1_2.update_rpf_id(8192)
+
+ p = (
+ Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ / MPLS(label=77, ttl=255)
+ / BIER(
+ length=BIERLength.BIER_LEN_256,
+ BitString=scapy.compat.chb(255) * 32,
+ BFRID=77,
+ )
+ / IP(src="1.1.1.1", dst="232.1.1.2")
+ / UDP(sport=1234, dport=1234)
+ / Raw()
+ )
+ self.send_and_expect(self.pg0, [p], self.pg1)
+
+ def bier_e2e(self, hdr_len_id, n_bytes, max_bp):
+ """BIER end-to-end"""
+
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
#
# 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 = [b"\0"] * (n_bytes)
+ lowest[-1] = scapy.compat.chb(1)
+ highest = [b"\0"] * (n_bytes)
+ highest[0] = scapy.compat.chb(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
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=bi.bi_index)])
+ "232.1.1.1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ paths=[
+ VppMRoutePath(
+ self.pg0.sw_if_index, MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT
+ ),
+ VppMRoutePath(
+ 0xFFFFFFFF,
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_BIER,
+ type=FibPathType.FIB_PATH_TYPE_BIER_IMP,
+ 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_API_ENTRY_FLAG_NONE,
+ paths=[
+ VppMRoutePath(
+ self.pg0.sw_if_index, MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT
+ ),
+ VppMRoutePath(
+ 0xFFFFFFFF,
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_BIER,
+ type=FibPathType.FIB_PATH_TYPE_BIER_IMP,
+ 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,
- [VppRoutePath("0.0.0.0",
- 0xffffffff,
- nh_table_id=8)])
+ bier_route_1 = VppBierRoute(
+ self,
+ bti,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ 0xFFFFFFFF,
+ proto=FibPathProto.FIB_PATH_NH_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,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_BIER,
+ nh_table_id=8,
+ )
+ ],
+ )
+ bier_route_max.add_vpp_config()
#
# An entry in the disposition table for sender 333
# lookup in VRF 10
#
- bier_de_1 = VppBierDispEntry(self, bdt.id, 333,
- BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
- "0.0.0.0", 10, rpf_id=8192)
+ bier_de_1 = VppBierDispEntry(
+ self,
+ bdt.id,
+ 333,
+ BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ FibPathProto.FIB_PATH_NH_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,
+ FibPathProto.FIB_PATH_NH_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(
self,
"0.0.0.0",
- "232.1.1.1", 32,
- MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ "232.1.1.1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
table_id=10,
- paths=[VppMRoutePath(self.pg1.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ paths=[
+ VppMRoutePath(
+ self.pg1.sw_if_index, MRouteItfFlags.MFIB_API_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_API_ENTRY_FLAG_NONE,
+ table_id=10,
+ paths=[
+ VppMRoutePath(
+ self.pg1.sw_if_index, MRouteItfFlags.MFIB_API_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))
+ 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(scapy.compat.chb(5) * 32)
+ )
- rx = self.send_and_expect(self.pg0, p*65, self.pg1)
+ rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
- #
- # should be IP
- #
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(scapy.compat.chb(5) * 512)
+ )
+
+ rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
+ self.assertEqual(rx[0][IP].src, "1.1.1.1")
+ self.assertEqual(rx[0][IP].dst, "232.1.1.2")
+
+ @unittest.skipUnless(config.extended, "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(config.extended, "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(config.extended, "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(config.extended, "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"""
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
#
# Add a BIER table for sub-domain 1, set 0, and BSL 256
#
# 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=[2001])])
+ 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 = VppUdpEncap(self, 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 = VppBierRoute(
+ self,
+ bti,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ 0xFFFFFFFF,
+ type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP,
+ next_hop_id=udp_encap.id,
+ )
+ ],
+ )
bier_route.add_vpp_config()
#
- # An imposition object with all bit-positions set
+ # 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 = VppBierImp(self, bti, 333, scapy.compat.chb(0xFF) * 32)
bi.add_vpp_config()
+ bi2 = VppBierImp(self, bti, 334, scapy.compat.chb(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=bi.bi_index)])
+ "232.1.1.1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ paths=[
+ VppMRoutePath(
+ self.pg0.sw_if_index, MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT
+ ),
+ VppMRoutePath(
+ 0xFFFFFFFF,
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_BIER,
+ type=FibPathType.FIB_PATH_TYPE_BIER_IMP,
+ 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))
+ 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.pg0.add_stream([p])
self.pg_enable_capture(self.pg_interfaces)
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].bsl, BIERLength.BIER_LEN_256)
self.assertEqual(rx[0][BIFT].sd, 1)
self.assertEqual(rx[0][BIFT].set, 0)
self.assertEqual(rx[0][BIFT].ttl, 64)
def test_bier_tail_o_udp(self):
"""BIER Tail over UDP"""
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
#
# Add a BIER table for sub-domain 0, set 0, and BSL 256
#
#
# BIER route in table that's for-us
#
- bier_route_1 = VppBierRoute(self, bti, 1,
- [VppRoutePath("0.0.0.0",
- 0xffffffff,
- nh_table_id=8)])
+ bier_route_1 = VppBierRoute(
+ self,
+ bti,
+ 1,
+ [
+ VppRoutePath(
+ "0.0.0.0",
+ 0xFFFFFFFF,
+ proto=FibPathProto.FIB_PATH_NH_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,
- "0.0.0.0", 0, rpf_id=8192)
+ bier_de_1 = VppBierDispEntry(
+ self,
+ bdt.id,
+ 99,
+ BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
+ FibPathProto.FIB_PATH_NH_PROTO_BIER,
+ "0.0.0.0",
+ 0,
+ rpf_id=8192,
+ )
bier_de_1.add_vpp_config()
#
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)])
+ "232.1.1.1",
+ 32,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
+ paths=[
+ VppMRoutePath(
+ self.pg1.sw_if_index, MRouteItfFlags.MFIB_API_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, BFRID=99) /
- IP(src="1.1.1.1", dst="232.1.1.1") /
- UDP(sport=1234, dport=1234) /
- Raw())
+ 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=scapy.compat.chb(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__':
+if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)