def send_packet(self, msg_type, t1=None, t2=None, iapdopt=None): if t1 is None: t1 = self.T1 if t2 is None: t2 = self.T2 if iapdopt is None: opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2) else: opt_ia_pd = DHCP6OptIA_PD(iaid=1, T1=t1, T2=t2, iapdopt=iapdopt) p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / IPv6( src=mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll) / UDP(sport=547, dport=546) / msg_type(trid=self.trid) / DHCP6OptServerId(duid=self.server_duid) / DHCP6OptClientId(duid=self.client_duid) / opt_ia_pd) self.pg0.add_stream([p]) self.pg_enable_capture(self.pg_interfaces) self.pg_start()
def test_dhcp_pd_send_solicit_receive_advertise(self): """Verify DHCPv6 PD Solicit packet and Advertise event""" self.vapi.dhcp6_clients_enable_disable(enable=1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() prefix = { "prefix": {"address": "1:2:3::", "len": 50}, "preferred_time": 60, "valid_time": 120, } prefixes = [prefix] self.vapi.dhcp6_pd_send_client_message( server_index=0xFFFFFFFF, mrc=1, msg_type=VppEnum.vl_api_dhcpv6_msg_type_t.DHCPV6_MSG_API_SOLICIT, sw_if_index=self.pg0.sw_if_index, T1=20, T2=40, prefixes=prefixes, n_prefixes=len(prefixes), ) rx_list = self.pg0.get_capture(1) self.assertEqual(len(rx_list), 1) packet = rx_list[0] self.assertEqual(packet.haslayer(IPv6), 1) self.assertEqual(packet[IPv6].haslayer(DHCP6_Solicit), 1) client_duid = packet[DHCP6OptClientId].duid trid = packet[DHCP6_Solicit].trid dst = ip6_normalize(packet[IPv6].dst) dst2 = ip6_normalize("ff02::1:2") self.assert_equal(dst, dst2) src = ip6_normalize(packet[IPv6].src) src2 = ip6_normalize(self.pg0.local_ip6_ll) self.assert_equal(src, src2) ia_pd = packet[DHCP6OptIA_PD] self.assert_equal(ia_pd.T1, 20) self.assert_equal(ia_pd.T2, 40) self.assert_equal(len(ia_pd.iapdopt), 1) prefix = ia_pd.iapdopt[0] self.assert_equal(prefix.prefix, "1:2:3::") self.assert_equal(prefix.plen, 50) self.assert_equal(prefix.preflft, 60) self.assert_equal(prefix.validlft, 120) self.vapi.want_dhcp6_pd_reply_events(enable_disable=1, pid=os.getpid()) try: ia_pd_opts = DHCP6OptIAPrefix( prefix="7:8::", plen=56, preflft=60, validlft=120 ) p = ( Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / IPv6( src=util.mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll ) / UDP(sport=547, dport=546) / DHCP6_Advertise(trid=trid) / DHCP6OptServerId(duid=self.server_duid) / DHCP6OptClientId(duid=client_duid) / DHCP6OptPref(prefval=7) / DHCP6OptStatusCode(statuscode=1) / DHCP6OptIA_PD(iaid=1, T1=20, T2=40, iapdopt=ia_pd_opts) ) self.pg0.add_stream([p]) self.pg_start() ev = self.vapi.wait_for_event(1, "dhcp6_pd_reply_event") self.assert_equal(ev.preference, 7) self.assert_equal(ev.status_code, 1) self.assert_equal(ev.T1, 20) self.assert_equal(ev.T2, 40) reported_prefix = ev.prefixes[0] prefix = ia_pd_opts.getfieldval("prefix") self.assert_equal(str(reported_prefix.prefix).split("/")[0], prefix) self.assert_equal( int(str(reported_prefix.prefix).split("/")[1]), ia_pd_opts.getfieldval("plen"), ) self.assert_equal( reported_prefix.preferred_time, ia_pd_opts.getfieldval("preflft") ) self.assert_equal( reported_prefix.valid_time, ia_pd_opts.getfieldval("validlft") ) finally: self.vapi.want_dhcp6_pd_reply_events(enable_disable=0) self.vapi.dhcp6_clients_enable_disable(enable=0)
def test_dhcp_pd_send_solicit_receive_advertise(self): """ Verify DHCPv6 PD Solicit packet and Advertise envent """ self.vapi.dhcp6_clients_enable_disable() self.pg_enable_capture(self.pg_interfaces) self.pg_start() prefix_bin = '\00\01\00\02\00\03' + '\00' * 10 prefix = {'prefix': prefix_bin, 'prefix_length': 50, 'preferred_time': 60, 'valid_time': 120} self.vapi.dhcp6_pd_send_client_message(1, self.pg0.sw_if_index, T1=20, T2=40, prefixes=[prefix]) rx_list = self.pg0.get_capture(1) self.assertEqual(len(rx_list), 1) packet = rx_list[0] self.assertTrue(packet.haslayer(IPv6)) self.assertTrue(packet[IPv6].haslayer(DHCP6_Solicit)) client_duid = packet[DHCP6OptClientId].duid trid = packet[DHCP6_Solicit].trid dst = ip6_normalize(packet[IPv6].dst) dst2 = ip6_normalize("ff02::1:2") self.assert_equal(dst, dst2) src = ip6_normalize(packet[IPv6].src) src2 = ip6_normalize(self.pg0.local_ip6_ll) self.assert_equal(src, src2) ia_pd = packet[DHCP6OptIA_PD] self.assert_equal(ia_pd.T1, 20) self.assert_equal(ia_pd.T2, 40) self.assert_equal(len(ia_pd.iapdopt), 1) prefix = ia_pd.iapdopt[0] self.assert_equal(prefix.prefix, '1:2:3::') self.assert_equal(prefix.plen, 50) self.assert_equal(prefix.preflft, 60) self.assert_equal(prefix.validlft, 120) self.vapi.want_dhcp6_pd_reply_events() try: ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=60, validlft=120) p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / IPv6(src=mk_ll_addr(self.pg0.remote_mac), dst=self.pg0.local_ip6_ll) / UDP(sport=547, dport=546) / DHCP6_Advertise(trid=trid) / DHCP6OptServerId(duid=self.server_duid) / DHCP6OptClientId(duid=client_duid) / DHCP6OptPref(prefval=7) / DHCP6OptStatusCode(statuscode=1) / DHCP6OptIA_PD(iaid=1, T1=20, T2=40, iapdopt=ia_pd_opts) ) self.pg0.add_stream([p]) self.pg_start() ev = self.vapi.wait_for_event(1, "dhcp6_pd_reply_event") self.assert_equal(ev.preference, 7) self.assert_equal(ev.status_code, 1) self.assert_equal(ev.T1, 20) self.assert_equal(ev.T2, 40) reported_prefix = ev.prefixes[0] prefix = inet_pton(AF_INET6, ia_pd_opts.getfieldval("prefix")) self.assert_equal(reported_prefix.prefix, prefix) self.assert_equal(reported_prefix.prefix_length, ia_pd_opts.getfieldval("plen")) self.assert_equal(reported_prefix.preferred_time, ia_pd_opts.getfieldval("preflft")) self.assert_equal(reported_prefix.valid_time, ia_pd_opts.getfieldval("validlft")) finally: self.vapi.want_dhcp6_pd_reply_events(enable_disable=0)