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TEST:add l2bd nd term tests

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Change-Id: I67633175d50a70a0b8ae4f85c659b93070f8e1fb
Signed-off-by: Eyal Bari <ebari@cisco.com>
This commit is contained in:
Eyal Bari
2017-07-05 14:31:30 +03:00
committed by John Lo
parent d756b35032
commit 758137a7b7
1 changed files with 119 additions and 6 deletions
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125
test/test_l2bd_arp_term.py
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@ -5,9 +5,18 @@ import unittest
import random
import copy
from socket import AF_INET6
from scapy.packet import Raw
from scapy.layers.l2 import Ether, ARP
from scapy.layers.inet import IP
from scapy.utils import inet_pton, inet_ntop
from scapy.utils6 import in6_getnsma, in6_getnsmac, in6_ptop, in6_islladdr, \
in6_mactoifaceid, in6_ismaddr
from scapy.layers.inet6 import IPv6, UDP, ICMPv6ND_NS, ICMPv6ND_RS, \
ICMPv6ND_RA, ICMPv6NDOptSrcLLAddr, getmacbyip6, ICMPv6MRD_Solicitation, \
ICMPv6NDOptMTU, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptPrefixInfo, \
ICMPv6ND_NA, ICMPv6NDOptDstLLAddr, ICMPv6DestUnreach, icmp6types
from framework import VppTestCase, VppTestRunner
from util import Host, ppp, mactobinary
@ -58,12 +67,13 @@ class TestL2bdArpTerm(VppTestCase):
self.logger.info(self.vapi.ppcli("show l2fib verbose"))
self.logger.info(self.vapi.ppcli("show bridge-domain 1 detail"))
def add_del_arp_term_hosts(self, entries, bd_id=1, is_add=1):
def add_del_arp_term_hosts(self, entries, bd_id=1, is_add=1, is_ipv6=0):
for e in entries:
ip = e.ip4n if is_ipv6 == 0 else e.ip6n
self.vapi.bd_ip_mac_add_del(bd_id=bd_id,
mac=e.bin_mac,
ip=e.ip4n,
is_ipv6=0,
ip=ip,
is_ipv6=is_ipv6,
is_add=is_add)
@classmethod
@ -80,6 +90,16 @@ class TestL2bdArpTerm(VppTestCase):
return {cls.ip4_host(subnet, start + j, mac_list[j])
for j in range(len(mac_list))}
@classmethod
def ip6_host(cls, subnet, host, mac):
return Host(mac=mac,
ip6="fd01:%x::%x" % (subnet, host))
@classmethod
def ip6_hosts(cls, subnet, start, mac_list):
return {cls.ip6_host(subnet, start + j, mac_list[j])
for j in range(len(mac_list))}
@classmethod
def bd_swifs(cls, b):
n = cls.ifs_per_bd
@ -108,7 +128,7 @@ class TestL2bdArpTerm(VppTestCase):
def arp_reqs(cls, src_host, entries):
return [cls.arp(src_host, e) for e in entries]
def response_host(self, src_host, arp_resp):
def arp_resp_host(self, src_host, arp_resp):
ether = arp_resp[Ether]
self.assertEqual(ether.dst, src_host.mac)
@ -121,10 +141,37 @@ class TestL2bdArpTerm(VppTestCase):
self.assertEqual(arp.op, arp_opts["is-at"])
self.assertEqual(arp.hwdst, src_host.mac)
self.assertEqual(arp.pdst, src_host.ip4)
return Host(arp.hwsrc, arp.psrc)
return Host(mac=arp.hwsrc, ip4=arp.psrc)
def arp_resp_hosts(self, src_host, pkts):
return {self.response_host(src_host, p) for p in pkts}
return {self.arp_resp_host(src_host, p) for p in pkts}
@classmethod
def ns_req(cls, src_host, host):
nsma = in6_getnsma(inet_pton(AF_INET6, "fd10::ffff"))
d = inet_ntop(AF_INET6, nsma)
return (Ether(dst="ff:ff:ff:ff:ff:ff", src=src_host.mac) /
IPv6(dst=d, src=src_host.ip6) /
ICMPv6ND_NS(tgt=host.ip6) /
ICMPv6NDOptSrcLLAddr(lladdr=src_host.mac))
@classmethod
def ns_reqs(cls, src_host, entries):
return [cls.ns_req(src_host, e) for e in entries]
def na_resp_host(self, src_host, rx):
self.assertEqual(rx[Ether].dst, src_host.mac)
self.assertEqual(in6_ptop(rx[IPv6].dst),
in6_ptop(src_host.ip6))
self.assertTrue(rx.haslayer(ICMPv6ND_NA))
self.assertTrue(rx.haslayer(ICMPv6NDOptDstLLAddr))
na = rx[ICMPv6ND_NA]
return Host(mac=na.lladdr, ip6=na.tgt)
def na_resp_hosts(self, src_host, pkts):
return {self.na_resp_host(src_host, p) for p in pkts}
def set_bd_flags(self, bd_id, **args):
"""
@ -167,6 +214,20 @@ class TestL2bdArpTerm(VppTestCase):
resps = self.arp_resp_hosts(src_host, resp_pkts)
self.assertEqual(len(resps ^ resp_hosts), 0)
def verify_nd(self, src_host, req_hosts, resp_hosts, bd_id=1):
reqs = self.ns_reqs(src_host, req_hosts)
for swif in self.bd_swifs(bd_id):
swif.add_stream(reqs)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
for swif in self.bd_swifs(bd_id):
resp_pkts = swif.get_capture(len(resp_hosts))
resps = self.na_resp_hosts(src_host, resp_pkts)
self.assertEqual(len(resps ^ resp_hosts), 0)
def test_l2bd_arp_term_01(self):
""" L2BD arp term - add 5 hosts, verify arp responses
"""
@ -234,6 +295,58 @@ class TestL2bdArpTerm(VppTestCase):
self.verify_arp(src_host, hosts1, hosts2)
self.bd_add_del(1, is_add=0)
def test_l2bd_arp_term_06(self):
""" L2BD arp/ND term - hosts with both ip4/ip6
"""
src_host4 = self.ip4_host(50, 50, "00:00:11:22:33:44")
src_host6 = self.ip6_host(50, 50, "00:00:11:22:33:44")
self.bd_add_del(1, is_add=1)
# enable flood to make sure requests are not flooded
self.set_bd_flags(1, arp_term=True, flood=True,
uu_flood=False, learn=False)
macs = self.mac_list(range(10, 20))
hosts6 = self.ip6_hosts(5, 1, macs)
hosts4 = self.ip4_hosts(5, 1, macs)
self.add_del_arp_term_hosts(hosts4, is_add=1)
self.add_del_arp_term_hosts(hosts6, is_add=1, is_ipv6=1)
self.verify_arp(src_host4, hosts4, hosts4)
self.verify_nd(src_host6, hosts6, hosts6)
self.bd_add_del(1, is_add=0)
def test_l2bd_arp_term_07(self):
""" L2BD ND term - Add and Del hosts, verify ND replies
"""
src_host6 = self.ip6_host(50, 50, "00:00:11:22:33:44")
self.bd_add_del(1, is_add=1)
self.set_bd_flags(1, arp_term=True, flood=False,
uu_flood=False, learn=False)
macs = self.mac_list(range(10, 20))
hosts6 = self.ip6_hosts(5, 1, macs)
self.add_del_arp_term_hosts(hosts6, is_add=1, is_ipv6=1)
self.verify_nd(src_host6, hosts6, hosts6)
del_macs = self.mac_list(range(10, 15))
deleted = self.ip6_hosts(5, 1, del_macs)
self.add_del_arp_term_hosts(deleted, is_add=0, is_ipv6=1)
self.verify_nd(src_host6, hosts6, hosts6 - deleted)
self.bd_add_del(1, is_add=0)
def test_l2bd_arp_term_08(self):
""" L2BD ND term - Add and update IP+mac, verify ND replies
"""
src_host = self.ip6_host(50, 50, "00:00:11:22:33:44")
self.bd_add_del(1, is_add=1)
self.set_bd_flags(1, arp_term=True, flood=False,
uu_flood=False, learn=False)
macs1 = self.mac_list(range(10, 20))
hosts = self.ip6_hosts(5, 1, macs1)
self.add_del_arp_term_hosts(hosts, is_add=1, is_ipv6=1)
self.verify_nd(src_host, hosts, hosts)
macs2 = self.mac_list(range(20, 30))
updated = self.ip6_hosts(5, 1, macs2)
self.add_del_arp_term_hosts(updated, is_add=1, is_ipv6=1)
self.verify_nd(src_host, hosts, updated)
self.bd_add_del(1, is_add=0)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)