diff options
| -rw-r--r-- | test/test_l2bd_arp_term.py | 125 |
1 files changed, 119 insertions, 6 deletions
diff --git a/test/test_l2bd_arp_term.py b/test/test_l2bd_arp_term.py index 52c1ad32ea2..80a7ff84678 100644 --- a/test/test_l2bd_arp_term.py +++ b/test/test_l2bd_arp_term.py @@ -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 @@ -81,6 +91,16 @@ class TestL2bdArpTerm(VppTestCase): 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 start = (b - 1) * n @@ -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) |