vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2020-03-05	session: fix segment search on fifo alloc	Florin Coras	1	-30/+23
2020-02-26	svm: fix coverity warnings	Florin Coras	1	-2/+1
2020-02-25	svm: minimal initial fifo	Florin Coras	1	-0/+1
2020-02-25	session: basic fifo-tuning-logic	Ryujiro Shibuya	1	-9/+28
2020-02-25	session svm: tracking segment memory usage	Ryujiro Shibuya	1	-15/+74
2020-02-25	svm: refactor fifo	Florin Coras	1	-44/+0
2019-12-12	session svm: support for segments larger than 4GB	Florin Coras	1	-4/+4
2019-12-12	session svm: per thread fifo segment slices	Florin Coras	1	-50/+64
2019-08-01	vppinfra: refactor clib_rwlock_t to use single condition variable	jaszha03	1	-1/+0
2019-06-09	svm: improve fifo segment show	Florin Coras	1	-18/+5
2019-05-14	svm: improve fifo segment prealloc support	Florin Coras	1	-3/+8
2019-05-09	session: segment manager fixes	Florin Coras	1	-1/+3
2019-05-03	session/svm: apis for fifo shrinking	Florin Coras	1	-0/+31
2019-04-26	svm: fifo segment support for chunk allocation	Florin Coras	1	-1/+14
2019-04-25	session: cleanup segment manager and fifo segment	Florin Coras	1	-226/+321
2019-04-24	session: remove unused fifo allo return value	Florin Coras	1	-6/+5
2019-04-17	session: fix segment manager init condition	Florin Coras	1	-1/+1
2019-04-12	session: drop lock on segment allocation error	Florin Coras	1	-12/+9
2019-03-06	session: use vpp to switch io events for ct sessions	Florin Coras	1	-6/+4
2019-03-04	session: remove svm_segment_index from session struct	Florin Coras	1	-2/+3
2019-03-02	session: notify app of segment removal	Florin Coras	1	-1/+12
2019-03-01	session: refactor local connects	Florin Coras	1	-13/+12
2019-02-23	session: separate local session logic	Florin Coras	1	-0/+1
2019-02-05	session: cleanup part 2	Florin Coras	1	-1/+1
2019-02-04	session: cleanup part 1	Florin Coras	1	-2/+2
2019-01-17	tls: preallocate app sessions on connect/accept	Florin Coras	1	-0/+3
2019-01-02	Fixes for buliding for 32bit targets:	David Johnson	1	-3/+3
2018-12-28	session: free session after transport and app confirm	Florin Coras	1	-1/+1
2018-11-30	session: segment handle in accept/connect notifications	Florin Coras	1	-3/+39
2018-10-23	c11 safe string handling support	Dave Barach	1	-4/+4
2018-10-05	session: fix local session tagging and cleanup	Florin Coras	1	-2/+2
2018-09-19	session: improve close procedure	Florin Coras	1	-1/+3
2018-09-14	vcl: keep track of unexpected events	Florin Coras	1	-3/+2
2018-09-06	session: support multiple worker binds	Florin Coras	1	-1/+2
2018-08-24	session: add support for multiple app workers	Florin Coras	1	-8/+8
2018-08-10	vcl: support for eventfd mq signaling	Florin Coras	1	-9/+13
2018-07-17	session: send ctrl msg over mq	Florin Coras	1	-2/+2
2018-07-17	session: use msg queue for events	Florin Coras	1	-8/+35
2018-07-17	session: make sure segment sizes are page aligned	Florin Coras	1	-1/+3
2018-03-25	session: fix local session disconnects	Florin Coras	1	-0/+8
2018-02-15	session: fix fifo allocation for empty connect seg-managers	Florin Coras	1	-1/+0
2018-02-14	session: support local sessions and deprecate redirects	Florin Coras	1	-24/+29
2018-02-05	session: segment manager refactor	Florin Coras	1	-333/+413
2018-01-27	session: disconnect and echo client improvements	Florin Coras	1	-8/+3
2018-01-25	session: add support for memfd segments	Florin Coras	1	-108/+87
2018-01-09	api: refactor vlibmemory	Florin Coras	1	-9/+7
2017-12-14	session: cleanup attach flags	Florin Coras	1	-14/+7
2017-11-10	session: use pool for segment manager properties	Florin Coras	1	-22/+59
2017-11-07	session: fix v6 double binds	Florin Coras	1	-0/+7
2017-10-16	udp: refactor udp code	Florin Coras	1	-1/+1

from socket import AF_INET6 from scapy.layers.dhcp6 import DHCP6_Advertise, DHCP6OptClientId, \ DHCP6OptStatusCode, DHCP6OptPref, DHCP6OptIA_PD, DHCP6OptIAPrefix, \ DHCP6OptServerId, DHCP6_Solicit, DHCP6_Reply, DHCP6_Request, DHCP6_Renew, \ DHCP6_Rebind, DUID_LL, DHCP6_Release, DHCP6OptElapsedTime, DHCP6OptIA_NA, \ DHCP6OptIAAddress from scapy.layers.inet6 import IPv6, Ether, UDP from scapy.utils6 import in6_mactoifaceid from scapy.utils import inet_ntop, inet_pton from framework import VppTestCase from vpp_papi import VppEnum import util import os def ip6_normalize(ip6): return inet_ntop(AF_INET6, inet_pton(AF_INET6, ip6)) class TestDHCPv6DataPlane(VppTestCase): """ DHCPv6 Data Plane Test Case """ @classmethod def setUpClass(cls): super(TestDHCPv6DataPlane, cls).setUpClass() @classmethod def tearDownClass(cls): super(TestDHCPv6DataPlane, cls).tearDownClass() def setUp(self): super(TestDHCPv6DataPlane, self).setUp() self.create_pg_interfaces(range(1)) self.interfaces = list(self.pg_interfaces) for i in self.interfaces: i.admin_up() i.config_ip6() self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac) def tearDown(self): for i in self.interfaces: i.unconfig_ip6() i.admin_down() super(TestDHCPv6DataPlane, self).tearDown() def test_dhcp_ia_na_send_solicit_receive_advertise(self): """ Verify DHCPv6 IA NA Solicit packet and Advertise event """ self.vapi.dhcp6_clients_enable_disable(enable=1) self.pg_enable_capture(self.pg_interfaces) self.pg_start() address = {'address': '1:2:3::5', 'preferred_time': 60, 'valid_time': 120} self.vapi.dhcp6_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, addresses=[address], n_addresses=len( [address])) 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_na = packet[DHCP6OptIA_NA] self.assert_equal(ia_na.T1, 20) self.assert_equal(ia_na.T2, 40) self.assert_equal(len(ia_na.ianaopts), 1) address = ia_na.ianaopts[0] self.assert_equal(address.addr, '1:2:3::5') self.assert_equal(address.preflft, 60) self.assert_equal(address.validlft, 120) self.vapi.want_dhcp6_reply_events(enable_disable=1, pid=os.getpid()) try: ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', 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_NA(iaid=1, T1=20, T2=40, ianaopts=ia_na_opts) ) self.pg0.add_stream([p]) self.pg_start() ev = self.vapi.wait_for_event(1, "dhcp6_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_address = ev.addresses[0] address = ia_na_opts.getfieldval("addr") self.assert_equal(str(reported_address.address), address) self.assert_equal(reported_address.preferred_time, ia_na_opts.getfieldval("preflft")) self.assert_equal(reported_address.valid_time, ia_na_opts.getfieldval("validlft")) finally: self.vapi.want_dhcp6_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 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) class TestDHCPv6IANAControlPlane(VppTestCase): """ DHCPv6 IA NA Control Plane Test Case """ @classmethod def setUpClass(cls): super(TestDHCPv6IANAControlPlane, cls).setUpClass() @classmethod def tearDownClass(cls): super(TestDHCPv6IANAControlPlane, cls).tearDownClass() def setUp(self): super(TestDHCPv6IANAControlPlane, self).setUp() self.create_pg_interfaces(range(1)) self.interfaces = list(self.pg_interfaces) for i in self.interfaces: i.admin_up() self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac) self.client_duid = None self.T1 = 1 self.T2 = 2 fib = self.vapi.ip_route_dump(0, True) self.initial_addresses = set(self.get_interface_addresses(fib, self.pg0)) self.pg_enable_capture(self.pg_interfaces) self.pg_start() self.vapi.dhcp6_client_enable_disable(sw_if_index=self.pg0.sw_if_index, enable=1) def tearDown(self): self.vapi.dhcp6_client_enable_disable(sw_if_index=self.pg0.sw_if_index, enable=0) for i in self.interfaces: i.admin_down() super(TestDHCPv6IANAControlPlane, self).tearDown() @staticmethod def get_interface_addresses(fib, pg): lst = [] for entry in fib: if entry.route.prefix.prefixlen == 128: path = entry.route.paths[0] if path.sw_if_index == pg.sw_if_index: lst.append(str(entry.route.prefix.network_address)) return lst def get_addresses(self): fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg0)) return addresses.difference(self.initial_addresses) def validate_duid_ll(self, duid): DUID_LL(duid) def validate_packet(self, packet, msg_type, is_resend=False): try: self.assertEqual(packet.haslayer(msg_type), 1) client_duid = packet[DHCP6OptClientId].duid if self.client_duid is None: self.client_duid = client_duid self.validate_duid_ll(client_duid) else: self.assertEqual(self.client_duid, client_duid) if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind: server_duid = packet[DHCP6OptServerId].duid self.assertEqual(server_duid, self.server_duid) if is_resend: self.assertEqual(self.trid, packet[msg_type].trid) else: self.trid = packet[msg_type].trid ip = packet[IPv6] udp = packet[UDP] self.assertEqual(ip.dst, 'ff02::1:2') self.assertEqual(udp.sport, 546) self.assertEqual(udp.dport, 547) dhcpv6 = packet[msg_type] elapsed_time = dhcpv6[DHCP6OptElapsedTime] if (is_resend): self.assertNotEqual(elapsed_time.elapsedtime, 0) else: self.assertEqual(elapsed_time.elapsedtime, 0) except BaseException: packet.show() raise def wait_for_packet(self, msg_type, timeout=None, is_resend=False): if timeout is None: timeout = 3 rx_list = self.pg0.get_capture(1, timeout=timeout) packet = rx_list[0] self.validate_packet(packet, msg_type, is_resend=is_resend) def wait_for_solicit(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend) def wait_for_request(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend) def wait_for_renew(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend) def wait_for_rebind(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend) def wait_for_release(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend) def send_packet(self, msg_type, t1=None, t2=None, ianaopts=None): if t1 is None: t1 = self.T1 if t2 is None: t2 = self.T2 if ianaopts is None: opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2) else: opt_ia_na = DHCP6OptIA_NA(iaid=1, T1=t1, T2=t2, ianaopts=ianaopts) 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) / msg_type(trid=self.trid) / DHCP6OptServerId(duid=self.server_duid) / DHCP6OptClientId(duid=self.client_duid) / opt_ia_na ) self.pg0.add_stream([p]) self.pg_enable_capture(self.pg_interfaces) self.pg_start() def send_advertise(self, t1=None, t2=None, ianaopts=None): self.send_packet(DHCP6_Advertise, t1, t2, ianaopts) def send_reply(self, t1=None, t2=None, ianaopts=None): self.send_packet(DHCP6_Reply, t1, t2, ianaopts) def test_T1_and_T2_timeouts(self): """ Test T1 and T2 timeouts """ self.wait_for_solicit() self.send_advertise() self.wait_for_request() self.send_reply() self.sleep(1) self.wait_for_renew() self.pg_enable_capture(self.pg_interfaces) self.sleep(1) self.wait_for_rebind() def test_addresses(self): """ Test handling of addresses """ ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=1, validlft=2) self.wait_for_solicit() self.send_advertise(t1=20, t2=40, ianaopts=ia_na_opts) self.wait_for_request() self.send_reply(t1=20, t2=40, ianaopts=ia_na_opts) self.sleep(0.1) # check FIB for new address new_addresses = self.get_addresses() self.assertEqual(len(new_addresses), 1) addr = list(new_addresses)[0] self.assertEqual(addr, '7:8::2') self.sleep(2) # check that the address is deleted fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg0)) new_addresses = addresses.difference(self.initial_addresses) self.assertEqual(len(new_addresses), 0) def test_sending_client_messages_solicit(self): """ VPP receives messages from DHCPv6 client """ self.wait_for_solicit() self.send_packet(DHCP6_Solicit) self.send_packet(DHCP6_Request) self.send_packet(DHCP6_Renew) self.send_packet(DHCP6_Rebind) self.sleep(1) self.wait_for_solicit(is_resend=True) def test_sending_inappropriate_packets(self): """ Server sends messages with inappropriate message types """ self.wait_for_solicit() self.send_reply() self.wait_for_solicit(is_resend=True) self.send_advertise() self.wait_for_request() self.send_advertise() self.wait_for_request(is_resend=True) self.send_reply() self.wait_for_renew() def test_no_address_available_in_advertise(self): """ Advertise message contains NoAddrsAvail status code """ self.wait_for_solicit() noavail = DHCP6OptStatusCode(statuscode=2) # NoAddrsAvail self.send_advertise(ianaopts=noavail) self.wait_for_solicit(is_resend=True) def test_preferred_greater_than_valid_lifetime(self): """ Preferred lifetime is greater than valid lifetime """ self.wait_for_solicit() self.send_advertise() self.wait_for_request() ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=3) self.send_reply(ianaopts=ia_na_opts) self.sleep(0.5) # check FIB contains no addresses fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg0)) new_addresses = addresses.difference(self.initial_addresses) self.assertEqual(len(new_addresses), 0) def test_T1_greater_than_T2(self): """ T1 is greater than T2 """ self.wait_for_solicit() self.send_advertise() self.wait_for_request() ia_na_opts = DHCP6OptIAAddress(addr='7:8::2', preflft=4, validlft=8) self.send_reply(t1=80, t2=40, ianaopts=ia_na_opts) self.sleep(0.5) # check FIB contains no addresses fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg0)) new_addresses = addresses.difference(self.initial_addresses) self.assertEqual(len(new_addresses), 0) class TestDHCPv6PDControlPlane(VppTestCase): """ DHCPv6 PD Control Plane Test Case """ @classmethod def setUpClass(cls): super(TestDHCPv6PDControlPlane, cls).setUpClass() @classmethod def tearDownClass(cls): super(TestDHCPv6PDControlPlane, cls).tearDownClass() def setUp(self): super(TestDHCPv6PDControlPlane, self).setUp() self.create_pg_interfaces(range(2)) self.interfaces = list(self.pg_interfaces) for i in self.interfaces: i.admin_up() self.server_duid = DUID_LL(lladdr=self.pg0.remote_mac) self.client_duid = None self.T1 = 1 self.T2 = 2 fib = self.vapi.ip_route_dump(0, True) self.initial_addresses = set(self.get_interface_addresses(fib, self.pg1)) self.pg_enable_capture(self.pg_interfaces) self.pg_start() self.prefix_group = 'my-pd-prefix-group' self.vapi.dhcp6_pd_client_enable_disable( enable=1, sw_if_index=self.pg0.sw_if_index, prefix_group=self.prefix_group) def tearDown(self): self.vapi.dhcp6_pd_client_enable_disable(self.pg0.sw_if_index, enable=0) for i in self.interfaces: i.admin_down() super(TestDHCPv6PDControlPlane, self).tearDown() @staticmethod def get_interface_addresses(fib, pg): lst = [] for entry in fib: if entry.route.prefix.prefixlen == 128: path = entry.route.paths[0] if path.sw_if_index == pg.sw_if_index: lst.append(str(entry.route.prefix.network_address)) return lst def get_addresses(self): fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg1)) return addresses.difference(self.initial_addresses) def validate_duid_ll(self, duid): DUID_LL(duid) def validate_packet(self, packet, msg_type, is_resend=False): try: self.assertEqual(packet.haslayer(msg_type), 1) client_duid = packet[DHCP6OptClientId].duid if self.client_duid is None: self.client_duid = client_duid self.validate_duid_ll(client_duid) else: self.assertEqual(self.client_duid, client_duid) if msg_type != DHCP6_Solicit and msg_type != DHCP6_Rebind: server_duid = packet[DHCP6OptServerId].duid self.assertEqual(server_duid, self.server_duid) if is_resend: self.assertEqual(self.trid, packet[msg_type].trid) else: self.trid = packet[msg_type].trid ip = packet[IPv6] udp = packet[UDP] self.assertEqual(ip.dst, 'ff02::1:2') self.assertEqual(udp.sport, 546) self.assertEqual(udp.dport, 547) dhcpv6 = packet[msg_type] elapsed_time = dhcpv6[DHCP6OptElapsedTime] if (is_resend): self.assertNotEqual(elapsed_time.elapsedtime, 0) else: self.assertEqual(elapsed_time.elapsedtime, 0) except BaseException: packet.show() raise def wait_for_packet(self, msg_type, timeout=None, is_resend=False): if timeout is None: timeout = 3 rx_list = self.pg0.get_capture(1, timeout=timeout) packet = rx_list[0] self.validate_packet(packet, msg_type, is_resend=is_resend) def wait_for_solicit(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Solicit, timeout, is_resend=is_resend) def wait_for_request(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Request, timeout, is_resend=is_resend) def wait_for_renew(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Renew, timeout, is_resend=is_resend) def wait_for_rebind(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Rebind, timeout, is_resend=is_resend) def wait_for_release(self, timeout=None, is_resend=False): self.wait_for_packet(DHCP6_Release, timeout, is_resend=is_resend) 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=util.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 send_advertise(self, t1=None, t2=None, iapdopt=None): self.send_packet(DHCP6_Advertise, t1, t2, iapdopt) def send_reply(self, t1=None, t2=None, iapdopt=None): self.send_packet(DHCP6_Reply, t1, t2, iapdopt) def test_T1_and_T2_timeouts(self): """ Test T1 and T2 timeouts """ self.wait_for_solicit() self.send_advertise() self.wait_for_request() self.send_reply() self.sleep(1) self.wait_for_renew() self.pg_enable_capture(self.pg_interfaces) self.sleep(1) self.wait_for_rebind() def test_prefixes(self): """ Test handling of prefixes """ address1 = '::2:0:0:0:405/60' address2 = '::76:0:0:0:406/62' try: self.vapi.ip6_add_del_address_using_prefix( sw_if_index=self.pg1.sw_if_index, address_with_prefix=address1, prefix_group=self.prefix_group) ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=2, validlft=3) self.wait_for_solicit() self.send_advertise(t1=20, t2=40, iapdopt=ia_pd_opts) self.wait_for_request() self.send_reply(t1=20, t2=40, iapdopt=ia_pd_opts) self.sleep(0.1) # check FIB for new address new_addresses = self.get_addresses() self.assertEqual(len(new_addresses), 1) addr = list(new_addresses)[0] self.assertEqual(addr, '7:8:0:2::405') self.sleep(1) self.vapi.ip6_add_del_address_using_prefix( sw_if_index=self.pg1.sw_if_index, address_with_prefix=address2, prefix_group=self.prefix_group) self.sleep(1) # check FIB contains 2 addresses fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg1)) new_addresses = addresses.difference(self.initial_addresses) self.assertEqual(len(new_addresses), 2) addr1 = list(new_addresses)[0] addr2 = list(new_addresses)[1] if addr1 == '7:8:0:76::406': addr1, addr2 = addr2, addr1 self.assertEqual(addr1, '7:8:0:2::405') self.assertEqual(addr2, '7:8:0:76::406') self.sleep(1) # check that the addresses are deleted fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg1)) new_addresses = addresses.difference(self.initial_addresses) self.assertEqual(len(new_addresses), 0) finally: if address1 is not None: self.vapi.ip6_add_del_address_using_prefix( sw_if_index=self.pg1.sw_if_index, address_with_prefix=address1, prefix_group=self.prefix_group, is_add=0) if address2 is not None: self.vapi.ip6_add_del_address_using_prefix( sw_if_index=self.pg1.sw_if_index, address_with_prefix=address2, prefix_group=self.prefix_group, is_add=0) def test_sending_client_messages_solicit(self): """ VPP receives messages from DHCPv6 client """ self.wait_for_solicit() self.send_packet(DHCP6_Solicit) self.send_packet(DHCP6_Request) self.send_packet(DHCP6_Renew) self.send_packet(DHCP6_Rebind) self.sleep(1) self.wait_for_solicit(is_resend=True) def test_sending_inappropriate_packets(self): """ Server sends messages with inappropriate message types """ self.wait_for_solicit() self.send_reply() self.wait_for_solicit(is_resend=True) self.send_advertise() self.wait_for_request() self.send_advertise() self.wait_for_request(is_resend=True) self.send_reply() self.wait_for_renew() def test_no_prefix_available_in_advertise(self): """ Advertise message contains NoPrefixAvail status code """ self.wait_for_solicit() noavail = DHCP6OptStatusCode(statuscode=6) # NoPrefixAvail self.send_advertise(iapdopt=noavail) self.wait_for_solicit(is_resend=True) def test_preferred_greater_than_valid_lifetime(self): """ Preferred lifetime is greater than valid lifetime """ address1 = '::2:0:0:0:405/60' try: self.vapi.ip6_add_del_address_using_prefix( sw_if_index=self.pg1.sw_if_index, address_with_prefix=address1, prefix_group=self.prefix_group) self.wait_for_solicit() self.send_advertise() self.wait_for_request() ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4, validlft=3) self.send_reply(iapdopt=ia_pd_opts) self.sleep(0.5) # check FIB contains no addresses fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg1)) new_addresses = addresses.difference(self.initial_addresses) self.assertEqual(len(new_addresses), 0) finally: self.vapi.ip6_add_del_address_using_prefix( sw_if_index=self.pg1.sw_if_index, address_with_prefix=address1, prefix_group=self.prefix_group, is_add=0) def test_T1_greater_than_T2(self): """ T1 is greater than T2 """ address1 = '::2:0:0:0:405/60' try: self.vapi.ip6_add_del_address_using_prefix( sw_if_index=self.pg1.sw_if_index, address_with_prefix=address1, prefix_group=self.prefix_group) self.wait_for_solicit() self.send_advertise() self.wait_for_request() ia_pd_opts = DHCP6OptIAPrefix(prefix='7:8::', plen=56, preflft=4, validlft=8) self.send_reply(t1=80, t2=40, iapdopt=ia_pd_opts) self.sleep(0.5) # check FIB contains no addresses fib = self.vapi.ip_route_dump(0, True) addresses = set(self.get_interface_addresses(fib, self.pg1)) new_addresses = addresses.difference(self.initial_addresses) self.assertEqual(len(new_addresses), 0) finally: self.vapi.ip6_add_del_address_using_prefix( sw_if_index=self.pg1.sw_if_index, prefix_group=self.prefix_group, address_with_prefix=address1, is_add=False)