-#!/usr/bin/env python
+#!/usr/bin/env python3
import unittest
-import socket
from framework import VppTestCase, VppTestRunner, running_extended_tests
-from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \
+from vpp_ip import DpoProto
+from vpp_ip_route import VppIpRoute, VppRoutePath, \
VppMplsTable, VppIpMRoute, VppMRoutePath, VppIpTable, \
- MRouteEntryFlags, MRouteItfFlags, MPLS_LABEL_INVALID, DpoProto
-from vpp_bier import *
-from vpp_udp_encap import *
+ MRouteEntryFlags, MRouteItfFlags, 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
+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):
if error:
self.logger.critical(error)
- self.assertEqual(error.find("Failed"), -1)
+ self.assertNotIn("Failed", error)
class TestBier(VppTestCase):
bier_routes = []
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()
#
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) /
+ 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(chr(5) * pkt_size))
+ Raw(scapy.compat.chb(5) * pkt_size))
pkts = p
self.pg0.add_stream(pkts)
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 = [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 = ''.join(byte_array)
+ 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
- # becuase the bier_fib_dump and ip_fib_dump will be empty when the
+ # because the bier_fib_dump and ip_fib_dump will be empty when the
# auto-cleanup kicks in
#
for br in bier_routes:
for nhr in nh_routes:
nhr.remove_vpp_config()
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @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")
+ @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")
+ @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")
+ @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)
"""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"""
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,
[VppRoutePath(nh1, 0xffffffff,
- labels=[101])])
+ labels=[VppMplsLabel(101)])])
bier_route_2 = VppBierRoute(self, bti, 2,
[VppRoutePath(nh2, 0xffffffff,
- labels=[102])])
+ 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()
#
MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
VppMRoutePath(0xffffffff,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
- proto=DpoProto.DPO_PROTO_BIER,
+ 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()
#
# 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()
#
#
bier_de_1 = VppBierDispEntry(self, bdt.id, 99,
BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
- DpoProto.DPO_PROTO_BIER,
+ FibPathProto.FIB_PATH_NH_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,
- BitString=chr(255)*32,
+ BitString=scapy.compat.chb(255)*32,
BFRID=99) /
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) /
MPLS(label=77, ttl=255) /
BIER(length=BIERLength.BIER_LEN_256,
- BitString=chr(255)*32,
+ BitString=scapy.compat.chb(255)*32,
BFRID=77) /
IP(src="1.1.1.1", dst="232.1.1.1") /
UDP(sport=1234, dport=1234) /
#
bier_de_2 = VppBierDispEntry(self, bdt.id, 0,
BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
- DpoProto.DPO_PROTO_BIER,
+ 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)
+ #
+ # 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_ENTRY_FLAG_NONE,
+ paths=[VppMRoutePath(0xffffffff,
+ MRouteItfFlags.MFIB_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_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"""
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)
+ 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 strings
MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
VppMRoutePath(0xffffffff,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
- proto=DpoProto.DPO_PROTO_BIER,
+ 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(
MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
VppMRoutePath(0xffffffff,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
- proto=DpoProto.DPO_PROTO_BIER,
+ 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()
# 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,
- nh_table_id=8)])
+ 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()
#
#
bier_de_1 = VppBierDispEntry(self, bdt.id, 333,
BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
- DpoProto.DPO_PROTO_BIER,
+ 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,
- DpoProto.DPO_PROTO_BIER,
+ FibPathProto.FIB_PATH_NH_PROTO_BIER,
"0.0.0.0", 10, rpf_id=8193)
bier_de_1.add_vpp_config()
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))
+ 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)
self.assertEqual(rx[0][IP].src, "1.1.1.1")
self.assertEqual(rx[0][IP].dst, "232.1.1.1")
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))
+ Raw(scapy.compat.chb(5) * 512))
- rx = self.send_and_expect(self.pg0, p*65, self.pg1)
+ 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(running_extended_tests(), "part of extended tests")
+ @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")
+ @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")
+ @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")
+ @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)
ip_route = VppIpRoute(self, nh1, 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
- labels=[2001])])
+ labels=[VppMplsLabel(2001)])])
ip_route.add_vpp_config()
- udp_encap = VppUdpEncap(self, 4,
+ 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()
#
# 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, chr(0xff) * 32)
+ bi2 = VppBierImp(self, bti, 334, scapy.compat.chb(0xff) * 32)
bi2.add_vpp_config()
#
MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
VppMRoutePath(0xffffffff,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
- proto=DpoProto.DPO_PROTO_BIER,
+ 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()
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)
#
# 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()
#
#
bier_de_1 = VppBierDispEntry(self, bdt.id, 99,
BIER_HDR_PAYLOAD.BIER_HDR_PROTO_IPV4,
- DpoProto.DPO_PROTO_BIER,
+ FibPathProto.FIB_PATH_NH_PROTO_BIER,
"0.0.0.0", 0, rpf_id=8192)
bier_de_1.add_vpp_config()
UDP(sport=333, dport=8138) /
BIFT(sd=1, set=0, bsl=2, ttl=255) /
BIER(length=BIERLength.BIER_LEN_256,
- BitString=chr(255)*32,
+ BitString=scapy.compat.chb(255)*32,
BFRID=99) /
IP(src="1.1.1.1", dst="232.1.1.1") /
UDP(sport=1234, dport=1234) /