vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2020-04-23	misc: Markdown cleanups for the 20.01 release	Andrew Yourtchenko	1	-0/+1
2019-06-18	ipsec: ipsec-tun protect	Neale Ranns	1	-1/+0
2019-05-21	docs: add quic subpage to user docs	Vratko Polak	1	-1/+2
2019-05-14	rdma: update MAINTAINERS and add doc	Benoît Ganne	1	-0/+1
2019-04-19	Doxygen cleanup.	Dave Wallace	1	-0/+4
2018-04-04	Doc updates prior to branch	Chris Luke	1	-5/+8
2018-01-30	VPP-899: Run VPP under SELinux	Billy McFall	1	-0/+1
2018-01-24	docs: Clean up TOC	Dave Wallace	1	-0/+2
2017-09-28	General documentation updates	Chris Luke	1	-2/+0
2017-09-25	Add binary API documentation	Dave Barach	1	-0/+1
2017-06-22	NAT64: documentation	Matus Fabian	1	-0/+1
2017-06-09	Sample plugin: Add sample plugin documentation	Ray Kinsella	1	-0/+1
2017-05-30	Flowprobe: Stateful flows and IPv6, L4 recording	Ole Troan	1	-1/+1
2017-05-05	First commit SR MPLS	Pablo Camarillo	1	-0/+1
2017-03-29	Bugfixing and documentation for SRv6	Pablo Camarillo	1	-6/+7
2016-12-28	Repair Doxygen build infrastructure	Chris Luke	1	-0/+2
2016-11-28	dpdk: add ipsec cryptodev support	Sergio Gonzalez Monroy	1	-0/+1
2016-10-27	Per-packet IPFIX record generation plugin	Dave Barach	1	-0/+1
2016-10-04	Minor tweaks to hqos doc	Chris Luke	1	-3/+4
2016-09-21	Copy the 16.09 release notes to master	Chris Luke	1	-0/+1
2016-09-20	Add structure to some of the documentation; VPP-223	Chris Luke	1	-0/+10

#!/usr/bin/env python import unittest import socket from framework import VppTestCase, VppTestRunner from scapy.layers.l2 import Ether, getmacbyip from scapy.layers.inet import IP, UDP, ICMP from scapy.layers.inet6 import IPv6, in6_getnsmac, in6_mactoifaceid from scapy.layers.dhcp import DHCP, BOOTP, DHCPTypes from scapy.layers.dhcp6 import DHCP6, DHCP6_Solicit, DHCP6_RelayForward, \ DHCP6_RelayReply, DHCP6_Advertise, DHCP6OptRelayMsg, DHCP6OptIfaceId, \ DHCP6OptStatusCode, DHCP6OptVSS, DHCP6OptClientLinkLayerAddr from socket import AF_INET, AF_INET6 from scapy.utils import inet_pton, inet_ntop from scapy.utils6 import in6_ptop DHCP4_CLIENT_PORT = 68 DHCP4_SERVER_PORT = 67 DHCP6_CLIENT_PORT = 547 DHCP6_SERVER_PORT = 546 def mk_ll_addr(mac): euid = in6_mactoifaceid(mac) addr = "fe80::" + euid return addr class TestDHCP(VppTestCase): """ DHCP Test Case """ def setUp(self): super(TestDHCP, self).setUp() # create 3 pg interfaces self.create_pg_interfaces(range(4)) # pg0 and 1 are IP configured in VRF 0 and 1. # pg2 and 3 are non IP-configured in VRF 0 and 1 table_id = 0 for i in self.pg_interfaces[:2]: i.admin_up() i.set_table_ip4(table_id) i.set_table_ip6(table_id) i.config_ip4() i.resolve_arp() i.config_ip6() i.resolve_ndp() table_id += 1 table_id = 0 for i in self.pg_interfaces[2:]: i.admin_up() i.set_table_ip4(table_id) i.set_table_ip6(table_id) table_id += 1 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 validate_relay_options(self, pkt, intf, ip_addr, fib_id, oui): dhcp = pkt[DHCP] found = 0 data = [] for i in dhcp.options: if type(i) is tuple: if i[0] == "relay_agent_Information": # # There are two sb-options present - each of length 6. # data = i[1] if oui != 0: self.assertEqual(len(data), 24) else: self.assertEqual(len(data), 12) # # First sub-option is ID 1, len 4, then encoded # sw_if_index. This test uses low valued indicies # so [2:4] are 0. # The ID space is VPP internal - so no matching value # scapy # self.assertEqual(ord(data[0]), 1) self.assertEqual(ord(data[1]), 4) self.assertEqual(ord(data[2]), 0) self.assertEqual(ord(data[3]), 0) self.assertEqual(ord(data[4]), 0) self.assertEqual(ord(data[5]), intf._sw_if_index) # # next sub-option is the IP address of the client side # interface. # sub-option ID=5, length (of a v4 address)=4 # claddr = socket.inet_pton(AF_INET, ip_addr) self.assertEqual(ord(data[6]), 5) self.assertEqual(ord(data[7]), 4) self.assertEqual(data[8], claddr[0]) self.assertEqual(data[9], claddr[1]) self.assertEqual(data[10], claddr[2]) self.assertEqual(data[11], claddr[3]) if oui != 0: # sub-option 151 encodes the 3 byte oui # and the 4 byte fib_id self.assertEqual(ord(data[12]), 151) self.assertEqual(ord(data[13]), 8) self.assertEqual(ord(data[14]), 1) self.assertEqual(ord(data[15]), 0) self.assertEqual(ord(data[16]), 0) self.assertEqual(ord(data[17]), oui) self.assertEqual(ord(data[18]), 0) self.assertEqual(ord(data[19]), 0) self.assertEqual(ord(data[20]), 0) self.assertEqual(ord(data[21]), fib_id) # VSS control sub-option self.assertEqual(ord(data[22]), 152) self.assertEqual(ord(data[23]), 0) found = 1 self.assertTrue(found) return data def verify_dhcp_offer(self, pkt, intf): ether = pkt[Ether] self.assertEqual(ether.dst, "ff:ff:ff:ff:ff:ff") self.assertEqual(ether.src, intf.local_mac) ip = pkt[IP] self.assertEqual(ip.dst, "255.255.255.255") self.assertEqual(ip.src, intf.local_ip4) udp = pkt[UDP] self.assertEqual(udp.dport, DHCP4_CLIENT_PORT) self.assertEqual(udp.sport, DHCP4_SERVER_PORT) dhcp = pkt[DHCP] is_offer = False for o in dhcp.options: if type(o) is tuple: if o[0] == "message-type" \ and DHCPTypes[o[1]] == "offer": is_offer = True self.assertTrue(is_offer) data = self.validate_relay_options(pkt, intf, intf.local_ip4, 0, 0) def verify_dhcp_discover(self, pkt, intf, src_intf=None, fib_id=0, oui=0): ether = pkt[Ether] self.assertEqual(ether.dst, intf.remote_mac) self.assertEqual(ether.src, intf.local_mac) ip = pkt[IP] self.assertEqual(ip.dst, intf.remote_ip4) self.assertEqual(ip.src, intf.local_ip4) udp = pkt[UDP] self.assertEqual(udp.dport, DHCP4_SERVER_PORT) self.assertEqual(udp.sport, DHCP4_CLIENT_PORT) dhcp = pkt[DHCP] is_discover = False for o in dhcp.options: if type(o) is tuple: if o[0] == "message-type" \ and DHCPTypes[o[1]] == "discover": is_discover = True self.assertTrue(is_discover) data = self.validate_relay_options(pkt, src_intf, src_intf.local_ip4, fib_id, oui) return data def verify_dhcp6_solicit(self, pkt, intf, peer_ip, peer_mac, fib_id=0, oui=0): ether = pkt[Ether] self.assertEqual(ether.dst, intf.remote_mac) self.assertEqual(ether.src, intf.local_mac) ip = pkt[IPv6] self.assertEqual(in6_ptop(ip.dst), in6_ptop(intf.remote_ip6)) self.assertEqual(in6_ptop(ip.src), in6_ptop(intf.local_ip6)) udp = pkt[UDP] self.assertEqual(udp.dport, DHCP6_CLIENT_PORT) self.assertEqual(udp.sport, DHCP6_SERVER_PORT) relay = pkt[DHCP6_RelayForward] self.assertEqual(in6_ptop(relay.peeraddr), in6_ptop(peer_ip)) oid = pkt[DHCP6OptIfaceId] cll = pkt[DHCP6OptClientLinkLayerAddr] self.assertEqual(cll.optlen, 8) self.assertEqual(cll.lltype, 1) self.assertEqual(cll.clladdr, peer_mac) if fib_id != 0: vss = pkt[DHCP6OptVSS] self.assertEqual(vss.optlen, 8) self.assertEqual(vss.type, 1) # the OUI and FIB-id are really 3 and 4 bytes resp. # but the tested range is small self.assertEqual(ord(vss.data[0]), 0) self.assertEqual(ord(vss.data[1]), 0) self.assertEqual(ord(vss.data[2]), oui) self.assertEqual(ord(vss.data[3]), 0) self.assertEqual(ord(vss.data[4]), 0) self.assertEqual(ord(vss.data[5]), 0) self.assertEqual(ord(vss.data[6]), fib_id) # the relay message should be an encoded Solicit msg = pkt[DHCP6OptRelayMsg] sol = DHCP6_Solicit() self.assertEqual(msg.optlen, len(str(sol))) self.assertEqual(str(sol), (str(msg[1]))[:msg.optlen]) def verify_dhcp6_advert(self, pkt, intf, peer): ether = pkt[Ether] self.assertEqual(ether.dst, "ff:ff:ff:ff:ff:ff") self.assertEqual(ether.src, intf.local_mac) ip = pkt[IPv6] self.assertEqual(in6_ptop(ip.dst), in6_ptop(peer)) self.assertEqual(in6_ptop(ip.src), in6_ptop(intf.local_ip6)) udp = pkt[UDP] self.assertEqual(udp.dport, DHCP6_SERVER_PORT) self.assertEqual(udp.sport, DHCP6_CLIENT_PORT) # not sure why this is not decoding # adv = pkt[DHCP6_Advertise] def test_dhcp_proxy(self): """ DHCPv4 Proxy """ # # Verify no response to DHCP request without DHCP config # p_disc_vrf0 = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) / IP(src="0.0.0.0", dst="255.255.255.255") / UDP(sport=DHCP4_CLIENT_PORT, dport=DHCP4_SERVER_PORT) / BOOTP(op=1) / DHCP(options=[('message-type', 'discover'), ('end')])) pkts_disc_vrf0 = [p_disc_vrf0] p_disc_vrf1 = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg3.remote_mac) / IP(src="0.0.0.0", dst="255.255.255.255") / UDP(sport=DHCP4_CLIENT_PORT, dport=DHCP4_SERVER_PORT) / BOOTP(op=1) / DHCP(options=[('message-type', 'discover'), ('end')])) pkts_disc_vrf1 = [p_disc_vrf0] self.send_and_assert_no_replies(self.pg2, pkts_disc_vrf0, "DHCP with no configuration") self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1, "DHCP with no configuration") # # Enable DHCP proxy in VRF 0 # server_addr = self.pg0.remote_ip4n src_addr = self.pg0.local_ip4n self.vapi.dhcp_proxy_config(server_addr, src_addr, rx_table_id=0) # # Discover packets from the client are dropped because there is no # IP address configured on the client facing interface # self.send_and_assert_no_replies(self.pg2, pkts_disc_vrf0, "Discover DHCP no relay address") # # Inject a response from the server # dropped, because there is no IP addrees on the # client interfce to fill in the option. # 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=DHCP4_SERVER_PORT, dport=DHCP4_SERVER_PORT) / BOOTP(op=1) / DHCP(options=[('message-type', 'offer'), ('end')])) pkts = [p] self.send_and_assert_no_replies(self.pg2, pkts, "Offer DHCP no relay address") # # configure an IP address on the client facing interface # self.pg2.config_ip4() # # Try again with a discover packet # Rx'd packet should be to the server address and from the configured # source address # UDP source ports are unchanged # we've no option 82 config so that should be absent # self.pg2.add_stream(pkts_disc_vrf0) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg0.get_capture(1) rx = rx[0] option_82 = self.verify_dhcp_discover(rx, self.pg0, src_intf=self.pg2) # # Create an DHCP offer reply from the server with a correctly formatted # option 82. i.e. send back what we just captured # The offer, sent mcast to the client, still has option 82. # 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=DHCP4_SERVER_PORT, dport=DHCP4_SERVER_PORT) / BOOTP(op=1) / DHCP(options=[('message-type', 'offer'), ('relay_agent_Information', option_82), ('end')])) pkts = [p] self.pg0.add_stream(pkts) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg2.get_capture(1) rx = rx[0] self.verify_dhcp_offer(rx, self.pg2) # # Bogus Option 82: # # 1. not our IP address = not checked by VPP? so offer is replayed # to client bad_ip = option_82[0:8] + chr(33) + option_82[9:] 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=DHCP4_SERVER_PORT, dport=DHCP4_SERVER_PORT) / BOOTP(op=1) / DHCP(options=[('message-type', 'offer'), ('relay_agent_Information', bad_ip), ('end')])) pkts = [p] self.send_and_assert_no_replies(self.pg0, pkts, "DHCP offer option 82 bad address") # 2. Not a sw_if_index VPP knows bad_if_index = option_82[0:2] + chr(33) + option_82[3:] 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=DHCP4_SERVER_PORT, dport=DHCP4_SERVER_PORT) / BOOTP(op=1) / DHCP(options=[('message-type', 'offer'), ('relay_agent_Information', bad_if_index), ('end')])) pkts = [p] self.send_and_assert_no_replies(self.pg0, pkts, "DHCP offer option 82 bad if index") # # Send a DHCP request in VRF 1. should be dropped. # self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1, "DHCP with no configuration VRF 1") # # Delete the DHCP config in VRF 0 # Should now drop requests. # self.vapi.dhcp_proxy_config(server_addr, src_addr, rx_table_id=0, is_add=0) self.send_and_assert_no_replies(self.pg2, pkts_disc_vrf0, "DHCP config removed VRF 0") self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1, "DHCP config removed VRF 1") # # Add DHCP config for VRF 1 # server_addr = self.pg1.remote_ip4n src_addr = self.pg1.local_ip4n self.vapi.dhcp_proxy_config(server_addr, src_addr, rx_table_id=1, server_table_id=1) # # Confim DHCP requests ok in VRF 1. # - dropped on IP config on client interface # self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1, "DHCP config removed VRF 1") # # configure an IP address on the client facing interface # self.pg3.config_ip4() self.pg3.add_stream(pkts_disc_vrf1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg1.get_capture(1) rx = rx[0] self.verify_dhcp_discover(rx, self.pg1, src_intf=self.pg3) # # Add VSS config # table=1, fib=id=1, oui=4 self.vapi.dhcp_proxy_set_vss(1, 1, 4) self.pg3.add_stream(pkts_disc_vrf1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg1.get_capture(1) rx = rx[0] self.verify_dhcp_discover(rx, self.pg1, src_intf=self.pg3, fib_id=1, oui=4) # # Remove the VSS config # relayed DHCP has default vlaues in the option. # self.vapi.dhcp_proxy_set_vss(1, 1, 4, is_add=0) self.pg3.add_stream(pkts_disc_vrf1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg1.get_capture(1) rx = rx[0] self.verify_dhcp_discover(rx, self.pg1, src_intf=self.pg3) # # remove DHCP config to cleanup # self.vapi.dhcp_proxy_config(server_addr, src_addr, rx_table_id=1, server_table_id=11, is_add=0) self.send_and_assert_no_replies(self.pg2, pkts_disc_vrf0, "DHCP cleanup VRF 0") self.send_and_assert_no_replies(self.pg3, pkts_disc_vrf1, "DHCP cleanup VRF 1") def test_dhcp6_proxy(self): """ DHCPv6 Proxy""" # # Verify no response to DHCP request without DHCP config # dhcp_solicit_dst = "ff02::1:2" dhcp_solicit_src_vrf0 = mk_ll_addr(self.pg2.remote_mac) dhcp_solicit_src_vrf1 = mk_ll_addr(self.pg3.remote_mac) server_addr_vrf0 = self.pg0.remote_ip6n src_addr_vrf0 = self.pg0.local_ip6n server_addr_vrf1 = self.pg1.remote_ip6n src_addr_vrf1 = self.pg1.local_ip6n dmac = in6_getnsmac(inet_pton(socket.AF_INET6, dhcp_solicit_dst)) p_solicit_vrf0 = (Ether(dst=dmac, src=self.pg2.remote_mac) / IPv6(src=dhcp_solicit_src_vrf0, dst=dhcp_solicit_dst) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_CLIENT_PORT) / DHCP6_Solicit()) pkts_solicit_vrf0 = [p_solicit_vrf0] p_solicit_vrf1 = (Ether(dst=dmac, src=self.pg3.remote_mac) / IPv6(src=dhcp_solicit_src_vrf1, dst=dhcp_solicit_dst) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_CLIENT_PORT) / DHCP6_Solicit()) pkts_solicit_vrf1 = [p_solicit_vrf1] self.send_and_assert_no_replies(self.pg2, pkts_solicit_vrf0, "DHCP with no configuration") self.send_and_assert_no_replies(self.pg3, pkts_solicit_vrf1, "DHCP with no configuration") # # DHCPv6 config in VRF 0. # Packets still dropped because the client facing interface has no # IPv6 config # self.vapi.dhcp_proxy_config(server_addr_vrf0, src_addr_vrf0, rx_table_id=0, server_table_id=0, is_ipv6=1) self.send_and_assert_no_replies(self.pg2, pkts_solicit_vrf0, "DHCP with no configuration") self.send_and_assert_no_replies(self.pg3, pkts_solicit_vrf1, "DHCP with no configuration") # # configure an IP address on the client facing interface # self.pg2.config_ip6() # # Now the DHCP requests are relayed to the server # self.pg2.add_stream(pkts_solicit_vrf0) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg0.get_capture(1) rx = rx[0] self.verify_dhcp6_solicit(rx, self.pg0, dhcp_solicit_src_vrf0, self.pg2.remote_mac) # # Exception cases for rejected relay responses # # 1 - not a relay reply p_adv_vrf0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) / DHCP6_Advertise()) pkts_adv_vrf0 = [p_adv_vrf0] self.send_and_assert_no_replies(self.pg2, pkts_adv_vrf0, "DHCP6 not a relay reply") # 2 - no relay message option p_adv_vrf0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) / DHCP6_RelayReply() / DHCP6_Advertise()) pkts_adv_vrf0 = [p_adv_vrf0] self.send_and_assert_no_replies(self.pg2, pkts_adv_vrf0, "DHCP not a relay message") # 3 - no circuit ID p_adv_vrf0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) / DHCP6_RelayReply() / DHCP6OptRelayMsg(optlen=0) / DHCP6_Advertise()) pkts_adv_vrf0 = [p_adv_vrf0] self.send_and_assert_no_replies(self.pg2, pkts_adv_vrf0, "DHCP6 no circuit ID") # 4 - wrong circuit ID p_adv_vrf0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) / DHCP6_RelayReply() / DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x05') / DHCP6OptRelayMsg(optlen=0) / DHCP6_Advertise()) pkts_adv_vrf0 = [p_adv_vrf0] self.send_and_assert_no_replies(self.pg2, pkts_adv_vrf0, "DHCP6 wrong circuit ID") # # Send the relay response (the advertisement) # - no peer address p_adv_vrf0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) / DHCP6_RelayReply() / DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x03') / DHCP6OptRelayMsg(optlen=0) / DHCP6_Advertise(trid=1) / DHCP6OptStatusCode(statuscode=0)) pkts_adv_vrf0 = [p_adv_vrf0] self.pg0.add_stream(pkts_adv_vrf0) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg2.get_capture(1) rx = rx[0] self.verify_dhcp6_advert(rx, self.pg2, "::") # # Send the relay response (the advertisement) # - with peer address p_adv_vrf0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / IPv6(dst=self.pg0.local_ip6, src=self.pg0.remote_ip6) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) / DHCP6_RelayReply(peeraddr=dhcp_solicit_src_vrf0) / DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x03') / DHCP6OptRelayMsg(optlen=0) / DHCP6_Advertise(trid=1) / DHCP6OptStatusCode(statuscode=0)) pkts_adv_vrf0 = [p_adv_vrf0] self.pg0.add_stream(pkts_adv_vrf0) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg2.get_capture(1) rx = rx[0] self.verify_dhcp6_advert(rx, self.pg2, dhcp_solicit_src_vrf0) # # Add all the config for VRF 1 # self.vapi.dhcp_proxy_config(server_addr_vrf1, src_addr_vrf1, rx_table_id=1, server_table_id=1, is_ipv6=1) self.pg3.config_ip6() # # VRF 1 solicit # self.pg3.add_stream(pkts_solicit_vrf1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg1.get_capture(1) rx = rx[0] self.verify_dhcp6_solicit(rx, self.pg1, dhcp_solicit_src_vrf1, self.pg3.remote_mac) # # VRF 1 Advert # p_adv_vrf1 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / IPv6(dst=self.pg1.local_ip6, src=self.pg1.remote_ip6) / UDP(sport=DHCP6_SERVER_PORT, dport=DHCP6_SERVER_PORT) / DHCP6_RelayReply(peeraddr=dhcp_solicit_src_vrf1) / DHCP6OptIfaceId(optlen=4, ifaceid='\x00\x00\x00\x04') / DHCP6OptRelayMsg(optlen=0) / DHCP6_Advertise(trid=1) / DHCP6OptStatusCode(statuscode=0)) pkts_adv_vrf1 = [p_adv_vrf1] self.pg1.add_stream(pkts_adv_vrf1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg3.get_capture(1) rx = rx[0] self.verify_dhcp6_advert(rx, self.pg3, dhcp_solicit_src_vrf1) # # Add VSS config # table=1, fib=id=1, oui=4 self.vapi.dhcp_proxy_set_vss(1, 1, 4, is_ip6=1) self.pg3.add_stream(pkts_solicit_vrf1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg1.get_capture(1) rx = rx[0] self.verify_dhcp6_solicit(rx, self.pg1, dhcp_solicit_src_vrf1, self.pg3.remote_mac, fib_id=1, oui=4) # # Remove the VSS config # relayed DHCP has default vlaues in the option. # self.vapi.dhcp_proxy_set_vss(1, 1, 4, is_ip6=1, is_add=0) self.pg3.add_stream(pkts_solicit_vrf1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() rx = self.pg1.get_capture(1) rx = rx[0] self.verify_dhcp6_solicit(rx, self.pg1, dhcp_solicit_src_vrf1, self.pg3.remote_mac) # # Cleanup # self.vapi.dhcp_proxy_config(server_addr_vrf1, src_addr_vrf1, rx_table_id=1, server_table_id=1, is_ipv6=1, is_add=0) self.vapi.dhcp_proxy_config(server_addr_vrf1, src_addr_vrf1, rx_table_id=0, server_table_id=0, is_ipv6=1, is_add=0) if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)