quic: fix connection move with multiple workers - vpp

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author	Aloys Augustin <aloaugus@cisco.com>	2019-07-30 15:46:56 +0200
committer	Florin Coras <florin.coras@gmail.com>	2019-08-02 06:31:15 +0000
commit	2253abad90f9350fa7fff7e1e7a31963f16c30ca (patch)
tree	3a3a481bef6c8f55a47095ec2111f39e2f652c03 /src/plugins/quic/quic.c
parent	778ce573180618d4f694f91bd662d92b3eada725 (diff)

quic: fix connection move with multiple workers

Change-Id: Ibd1012c2c1382de442ed294dd9e8a0ec89349fa1 Type: fix Signed-off-by: Aloys Augustin <aloaugus@cisco.com>

Diffstat (limited to 'src/plugins/quic/quic.c')

-rw-r--r--

src/plugins/quic/quic.c

1 files changed, 35 insertions, 13 deletions

#!/usr/bin/env python """L2BD Multi-instance Test Case HLD: **NOTES:** - higher number of pg-l2 interfaces causes problems => only 15 pg-l2 \ interfaces in 5 bridge domains are tested - jumbo packets in configuration with 14 l2-pg interfaces leads to \ problems too **config 1** - add 15 pg-l2 interfaces - configure one host per pg-l2 interface - configure 5 bridge domains (BD) - add 3 pg-l2 interfaces per BD **test 1** - send L2 MAC frames between all pg-l2 interfaces of all BDs **verify 1** - check BD data by parsing output of bridge_domain_dump API command - all packets received correctly **config 2** - update data of 5 BD - disable learning, forwarding, flooding and uu_flooding for BD1 - disable forwarding for BD2 - disable flooding for BD3 - disable uu_flooding for BD4 - disable learning for BD5 **verify 2** - check BD data by parsing output of bridge_domain_dump API command **config 3** - delete 2 BDs **test 3** - send L2 MAC frames between all pg-l2 interfaces of all BDs - send L2 MAC frames between all pg-l2 interfaces formerly assigned to \ deleted BDs **verify 3** - check BD data by parsing output of bridge_domain_dump API command - all packets received correctly on all 3 pg-l2 interfaces assigned to BDs - no packet received on all 3 pg-l2 interfaces of all deleted BDs **config 4** - add 2 BDs - add 3 pg-l2 interfaces per BD **test 4** - send L2 MAC frames between all pg-l2 interfaces of all BDs **verify 4** - check BD data by parsing output of bridge_domain_dump API command - all packets received correctly **config 5** - delete 5 BDs **verify 5** - check BD data by parsing output of bridge_domain_dump API command """ import unittest import random from scapy.packet import Raw from scapy.layers.l2 import Ether from scapy.layers.inet import IP, UDP from framework import VppTestCase, VppTestRunner from util import Host, ppp class TestL2bdMultiInst(VppTestCase): """ L2BD Multi-instance Test Case """ @classmethod def setUpClass(cls): """ Perform standard class setup (defined by class method setUpClass in class VppTestCase) before running the test case, set test case related variables and configure VPP. """ super(TestL2bdMultiInst, cls).setUpClass() try: # Create pg interfaces n_bd = 5 cls.ifs_per_bd = ifs_per_bd = 3 n_ifs = n_bd * ifs_per_bd cls.create_pg_interfaces(range(n_ifs)) # Packet flows mapping pg0 -> pg1, pg2 etc. cls.flows = dict() for b in range(n_bd): bd_ifs = cls.bd_if_range(b + 1) for j in bd_ifs: cls.flows[cls.pg_interfaces[j]] = [ cls.pg_interfaces[x] for x in bd_ifs if x != j] assert( len(cls.flows[cls.pg_interfaces[j]]) == ifs_per_bd - 1) # Mapping between packet-generator index and lists of test hosts cls.hosts_by_pg_idx = dict() # Create test host entries cls.create_hosts(5) # Packet sizes - jumbo packet (9018 bytes) skipped cls.pg_if_packet_sizes = [64, 512, 1518] # Set up all interfaces for i in cls.pg_interfaces: i.admin_up() # Create list of BDs cls.bd_list = list() # Create list of deleted BDs cls.bd_deleted_list = list() # Create list of pg_interfaces in BDs cls.pg_in_bd = list() except Exception: super(TestL2bdMultiInst, cls).tearDownClass() raise def setUp(self): """ Clear trace and packet infos before running each test. """ self.reset_packet_infos() super(TestL2bdMultiInst, self).setUp() def tearDown(self): """ Show various debug prints after each test. """ super(TestL2bdMultiInst, self).tearDown() if not self.vpp_dead: self.logger.info(self.vapi.ppcli("show l2fib verbose")) self.logger.info(self.vapi.ppcli("show bridge-domain")) @classmethod def create_hosts(cls, hosts_per_if): """ Create required number of host MAC addresses and distribute them among interfaces. Create host IPv4 address for every host MAC address. :param int hosts_per_if: Number of hosts per if to create MAC/IPv4 addresses for. """ c = hosts_per_if assert(not cls.hosts_by_pg_idx) for i in range(len(cls.pg_interfaces)): pg_idx = cls.pg_interfaces[i].sw_if_index cls.hosts_by_pg_idx[pg_idx] = [Host( "00:00:00:ff:%02x:%02x" % (pg_idx, j + 1), "172.17.1%02u.%u" % (pg_idx, j + 1)) for j in range(c)] @classmethod def bd_if_range(cls, b): n = cls.ifs_per_bd start = (b - 1) * n return range(start, start + n) def create_bd_and_mac_learn(self, count, start=1): """ Create required number of bridge domains with MAC learning enabled, put 3 l2-pg interfaces to every bridge domain and send MAC learning packets. :param int count: Number of bridge domains to be created. :param int start: Starting number of the bridge domain ID. (Default value = 1) """ for b in range(start, start + count): self.vapi.bridge_domain_add_del(bd_id=b) self.logger.info("Bridge domain ID %d created" % b) if self.bd_list.count(b) == 0: self.bd_list.append(b) if self.bd_deleted_list.count(b) == 1: self.bd_deleted_list.remove(b) for j in self.bd_if_range(b): pg_if = self.pg_interfaces[j] self.vapi.sw_interface_set_l2_bridge(pg_if.sw_if_index, bd_id=b) self.logger.info("pg-interface %s added to bridge domain ID %d" % (pg_if.name, b)) self.pg_in_bd.append(pg_if) hosts = self.hosts_by_pg_idx[pg_if.sw_if_index] packets = [Ether(dst="ff:ff:ff:ff:ff:ff", src=host.mac) for host in hosts] pg_if.add_stream(packets) self.logger.info("Sending broadcast eth frames for MAC learning") self.pg_start() self.logger.info(self.vapi.ppcli("show bridge-domain")) self.logger.info(self.vapi.ppcli("show l2fib")) def delete_bd(self, count, start=1): """ Delete required number of bridge domains. :param int count: Number of bridge domains to be created. :param int start: Starting number of the bridge domain ID. (Default value = 1) """ for b in range(start, start + count): for j in self.bd_if_range(b): pg_if = self.pg_interfaces[j] self.vapi.sw_interface_set_l2_bridge(pg_if.sw_if_index, bd_id=b, enable=0) self.pg_in_bd.remove(pg_if) self.vapi.bridge_domain_add_del(bd_id=b, is_add=0) self.bd_list.remove(b) self.bd_deleted_list.append(b) self.logger.info("Bridge domain ID %d deleted" % b) def create_stream(self, src_if): """ Create input packet stream for defined interface using hosts list. :param object src_if: Interface to create packet stream for. :param list packet_sizes: List of required packet sizes. :return: Stream of packets. """ packet_sizes = self.pg_if_packet_sizes pkts = [] src_hosts = self.hosts_by_pg_idx[src_if.sw_if_index] for dst_if in self.flows[src_if]: dst_hosts = self.hosts_by_pg_idx[dst_if.sw_if_index] for dst_host in dst_hosts: pkt_info = self.create_packet_info(src_if, dst_if) payload = self.info_to_payload(pkt_info) src_host = random.choice(src_hosts) p = (Ether(dst=dst_host.mac, src=src_host.mac) / IP(src=src_host.ip4, dst=dst_host.ip4) / UDP(sport=1234, dport=1234) / Raw(payload)) pkt_info.data = p.copy() size = random.choice(packet_sizes) self.extend_packet(p, size) pkts.append(p) self.logger.debug("Input stream created for port %s. Length: %u pkt(s)" % (src_if.name, len(pkts))) return pkts def verify_capture(self, dst_if): """ Verify captured input packet stream for defined interface. :param object dst_if: Interface to verify captured packet stream for. """ last_info = dict() for i in self.flows[dst_if]: last_info[i.sw_if_index] = None dst = dst_if.sw_if_index for packet in dst_if.get_capture(): try: ip = packet[IP] udp = packet[UDP] info = self.payload_to_info(str(packet[Raw])) self.assertEqual(info.dst, dst) self.logger.debug("Got packet on port %s: src=%u (id=%u)" % (dst_if.name, info.src, info.index)) last_info[info.src] = self.get_next_packet_info_for_interface2( info.src, dst, last_info[info.src]) pkt_info = last_info[info.src] self.assertTrue(pkt_info is not None) self.assertEqual(info.index, pkt_info.index) # Check standard fields against saved data in pkt saved = pkt_info.data self.assertEqual(ip.src, saved[IP].src) self.assertEqual(ip.dst, saved[IP].dst) self.assertEqual(udp.sport, saved[UDP].sport) self.assertEqual(udp.dport, saved[UDP].dport) except: self.logger.error(ppp("Unexpected or invalid packet:", packet)) raise s = "" remaining = 0 for src in self.flows[dst_if]: remaining_packet = self.get_next_packet_info_for_interface2( src.sw_if_index, dst, last_info[src.sw_if_index]) if remaining_packet is None: s += "Port %u: Packet expected from source %u didn't arrive\n"\ % (dst, src.sw_if_index) remaining += 1 self.assertNotEqual(0, remaining, s) def set_bd_flags(self, bd_id, **args): """ Enable/disable defined feature(s) of the bridge domain. :param int bd_id: Bridge domain ID. :param list args: List of feature/status pairs. Allowed features: \ learn, forward, flood, uu_flood and arp_term. Status False means \ disable, status True means enable the feature. :raise: ValueError in case of unknown feature in the input. """ for flag in args: if flag == "learn": feature_bitmap = 1 << 0 elif flag == "forward": feature_bitmap = 1 << 1 elif flag == "flood": feature_bitmap = 1 << 2 elif flag == "uu_flood": feature_bitmap = 1 << 3 elif flag == "arp_term": feature_bitmap = 1 << 4 else: raise ValueError("Unknown feature used: %s" % flag) is_set = 1 if args[flag] else 0 self.vapi.bridge_flags(bd_id, is_set, feature_bitmap) self.logger.info("Bridge domain ID %d updated" % bd_id) def verify_bd(self, bd_id, **args): """ Check if the bridge domain is configured and verify expected status of listed features. :param int bd_id: Bridge domain ID. :param list args: List of feature/status pairs. Allowed features: \ learn, forward, flood, uu_flood and arp_term. Status False means \ disable, status True means enable the feature. :return: 1 if bridge domain is configured, otherwise return 0. :raise: ValueError in case of unknown feature in the input. """ bd_dump = self.vapi.bridge_domain_dump(bd_id) if len(bd_dump) == 0: self.logger.info("Bridge domain ID %d is not configured" % bd_id) return 0 else: bd_dump = bd_dump[0] if len(args) > 0: for flag in args: expected_status = 1 if args[flag] else 0 if flag == "learn": flag_status = bd_dump[6] elif flag == "forward": flag_status = bd_dump[5] elif flag == "flood": flag_status = bd_dump[3] elif flag == "uu_flood": flag_status = bd_dump[4] elif flag == "arp_term": flag_status = bd_dump[7] else: raise ValueError("Unknown feature used: %s" % flag) self.assertEqual(expected_status, flag_status) return 1 def run_verify_test(self): """ Create packet streams for all configured l2-pg interfaces, send all \ prepared packet streams and verify that: - all packets received correctly on all pg-l2 interfaces assigned to bridge domains - no packet received on all pg-l2 interfaces not assigned to bridge domains :raise RuntimeError: if no packet captured on l2-pg interface assigned to the bridge domain or if any packet is captured on l2-pg interface not assigned to the bridge domain. """ # Test # Create incoming packet streams for packet-generator interfaces # for pg_if in self.pg_interfaces: assert(len(self._packet_count_for_dst_if_idx) == 0) for pg_if in self.pg_in_bd: pkts = self.create_stream(pg_if) pg_if.add_stream(pkts) # Enable packet capture and start packet sending self.pg_enable_capture(self.pg_in_bd) self.pg_start() # Verify # Verify outgoing packet streams per packet-generator interface for pg_if in self.pg_in_bd: self.verify_capture(pg_if) def test_l2bd_inst_01(self): """ L2BD Multi-instance test 1 - create 5 BDs """ # Config 1 # Create 5 BDs, put interfaces to these BDs and send MAC learning # packets self.create_bd_and_mac_learn(5) # Verify 1 for bd_id in self.bd_list: self.assertEqual(self.verify_bd(bd_id), 1) # Test 1 # self.vapi.cli("clear trace") self.run_verify_test() def test_l2bd_inst_02(self): """ L2BD Multi-instance test 2 - update data of 5 BDs """ # Config 2 # Update data of 5 BDs (disable learn, forward, flood, uu-flood) self.set_bd_flags(self.bd_list[0], learn=False, forward=False, flood=False, uu_flood=False) self.set_bd_flags(self.bd_list[1], forward=False) self.set_bd_flags(self.bd_list[2], flood=False) self.set_bd_flags(self.bd_list[3], uu_flood=False) self.set_bd_flags(self.bd_list[4], learn=False) # Verify 2 # Skipping check of uu_flood as it is not returned by # bridge_domain_dump api command self.verify_bd(self.bd_list[0], learn=False, forward=False, flood=False, uu_flood=False) self.verify_bd(self.bd_list[1], learn=True, forward=False, flood=True, uu_flood=True) self.verify_bd(self.bd_list[2], learn=True, forward=True, flood=False, uu_flood=True) self.verify_bd(self.bd_list[3], learn=True, forward=True, flood=True, uu_flood=False) self.verify_bd(self.bd_list[4], learn=False, forward=True, flood=True, uu_flood=True) def test_l2bd_inst_03(self): """ L2BD Multi-instance 3 - delete 2 BDs """ # Config 3 # Delete 2 BDs self.delete_bd(2) # Verify 3 for bd_id in self.bd_deleted_list: self.assertEqual(self.verify_bd(bd_id), 0) for bd_id in self.bd_list: self.assertEqual(self.verify_bd(bd_id), 1) # Test 3 self.run_verify_test() def test_l2bd_inst_04(self): """ L2BD Multi-instance test 4 - add 2 BDs """ # Config 4 # Create 5 BDs, put interfaces to these BDs and send MAC learning # packets self.create_bd_and_mac_learn(2) # Verify 4 for bd_id in self.bd_list: self.assertEqual(self.verify_bd(bd_id), 1) # Test 4 # self.vapi.cli("clear trace") self.run_verify_test() def test_l2bd_inst_05(self): """ L2BD Multi-instance 5 - delete 5 BDs """ # Config 5 # Delete 5 BDs self.delete_bd(5) # Verify 5 for bd_id in self.bd_deleted_list: self.assertEqual(self.verify_bd(bd_id), 0) for bd_id in self.bd_list: self.assertEqual(self.verify_bd(bd_id), 1) if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)


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