vpp - Vector Packet Processing

Age	Commit message (Collapse)	Author	Files	Lines
2020-04-30	misc: add Matt Smith to the committer list	Dave Barach	1	-0/+5
	In hopes of restoring his +2 button... Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I2600daab5afa4334713695d1074706fbb287832f
2020-04-23	misc: update INFO.yaml	Dave Barach	1	-34/+34
	Add Benoit Ganne to the committer list, remove committers who have resigned, list committers in alphabetical order. Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Ic51092df774464e228cd875acf118827e9cd1923
2018-08-31	Add INFO.yaml file	Vanessa Rene Valderrama	1	-0/+106
	Add INFO.yaml to list: - Project description - Properties - Issue Tracking - Contacts - PTL information - Meeting information - Committer information Change-Id: Ifed54c1cc648dc3dc7e276c63d87144812197505 Signed-off-by: Vanessa Rene Valderrama <vvalderrama@linuxfoundation.org>

='#n119'>119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263

#!/usr/bin/env python

import socket
from util import ip4n_range, ip4_range
import unittest
from framework import VppTestCase, VppTestRunner, running_extended_tests
from template_bd import BridgeDomain

from scapy.layers.l2 import Ether, Raw
from scapy.layers.inet import IP, UDP
from scapy.layers.vxlan import VXLAN
from scapy.utils import atol
from vpp_ip_route import VppIpRoute, VppRoutePath
from vpp_ip import INVALID_INDEX


@unittest.skipUnless(running_extended_tests, "part of extended tests")
class TestVxlanGpe(BridgeDomain, VppTestCase):
    """ VXLAN-GPE Test Case """

    def __init__(self, *args):
        BridgeDomain.__init__(self)
        VppTestCase.__init__(self, *args)

    def encapsulate(self, pkt, vni):
        """
        Encapsulate the original payload frame by adding VXLAN-GPE header
        with its UDP, IP and Ethernet fields
        """
        return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
                IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
                UDP(sport=self.dport, dport=self.dport, chksum=0) /
                VXLAN(vni=vni, flags=self.flags) /
                pkt)

    def ip_range(self, start, end):
        """ range of remote ip's """
        return ip4_range(self.pg0.remote_ip4, start, end)

    def encap_mcast(self, pkt, src_ip, src_mac, vni):
        """
        Encapsulate the original payload frame by adding VXLAN-GPE header
        with its UDP, IP and Ethernet fields
        """
        return (Ether(src=src_mac, dst=self.mcast_mac) /
                IP(src=src_ip, dst=self.mcast_ip4) /
                UDP(sport=self.dport, dport=self.dport, chksum=0) /
                VXLAN(vni=vni, flags=self.flags) /
                pkt)

    def decapsulate(self, pkt):
        """
        Decapsulate the original payload frame by removing VXLAN-GPE header
        """
        # check if is set I and P flag
        self.assertEqual(pkt[VXLAN].flags, 0x0c)
        return pkt[VXLAN].payload

    # Method for checking VXLAN-GPE encapsulation.
    #
    def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False):
        # Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved
        #  by VPP using ARP.
        self.assertEqual(pkt[Ether].src, self.pg0.local_mac)
        if not local_only:
            if not mcast_pkt:
                self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
            else:
                self.assertEqual(pkt[Ether].dst, type(self).mcast_mac)
        # Verify VXLAN-GPE tunnel src IP is VPP_IP and dst IP is MY_IP.
        self.assertEqual(pkt[IP].src, self.pg0.local_ip4)
        if not local_only:
            if not mcast_pkt:
                self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4)
            else:
                self.assertEqual(pkt[IP].dst, type(self).mcast_ip4)
        # Verify UDP destination port is VXLAN-GPE 4790, source UDP port
        #  could be arbitrary.
        self.assertEqual(pkt[UDP].dport, type(self).dport)
        # Verify VNI
        self.assertEqual(pkt[VXLAN].vni, vni)

    @classmethod
    def create_vxlan_gpe_flood_test_bd(cls, vni, n_ucast_tunnels):
        # Create 10 ucast vxlan tunnels under bd
        ip_range_start = 10
        ip_range_end = ip_range_start + n_ucast_tunnels
        next_hop_address = cls.pg0.remote_ip4
        for dest_ip4 in ip4_range(next_hop_address, ip_range_start,
                                  ip_range_end):
            # add host route so dest_ip4n will not be resolved
            rip = VppIpRoute(cls, dest_ip4, 32,
                             [VppRoutePath(next_hop_address,
                                           INVALID_INDEX)],
                             register=False)
            rip.add_vpp_config()
            dest_ip4n = socket.inet_pton(socket.AF_INET, dest_ip4)

            r = cls.vapi.vxlan_gpe_add_del_tunnel(
                src_addr=cls.pg0.local_ip4n,
                dst_addr=dest_ip4n,
                vni=vni)
            cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
                                                bd_id=vni)

    @classmethod
    def add_del_shared_mcast_dst_load(cls, is_add):
        """
        add or del tunnels sharing the same mcast dst
        to test vxlan_gpe ref_count mechanism
        """
        n_shared_dst_tunnels = 20
        vni_start = 1000
        vni_end = vni_start + n_shared_dst_tunnels
        for vni in range(vni_start, vni_end):
            r = cls.vapi.vxlan_gpe_add_del_tunnel(
                src_addr=cls.pg0.local_ip4n,
                dst_addr=cls.mcast_ip4n,
                mcast_sw_if_index=1,
                vni=vni,
                is_add=is_add)
            if r.sw_if_index == 0xffffffff:
                raise ValueError("bad sw_if_index: ~0")

    @classmethod
    def add_shared_mcast_dst_load(cls):
        cls.add_del_shared_mcast_dst_load(is_add=1)

    @classmethod
    def del_shared_mcast_dst_load(cls):
        cls.add_del_shared_mcast_dst_load(is_add=0)

    @classmethod
    def add_del_mcast_tunnels_load(cls, is_add):
        """
        add or del tunnels to test vxlan_gpe stability
        """
        n_distinct_dst_tunnels = 20
        ip_range_start = 10
        ip_range_end = ip_range_start + n_distinct_dst_tunnels
        for dest_ip4n in ip4n_range(cls.mcast_ip4n, ip_range_start,
                                    ip_range_end):
            vni = bytearray(dest_ip4n)[3]
            cls.vapi.vxlan_gpe_add_del_tunnel(
                src_addr=cls.pg0.local_ip4n,
                dst_addr=dest_ip4n,
                mcast_sw_if_index=1,
                vni=vni,
                is_add=is_add)

    @classmethod
    def add_mcast_tunnels_load(cls):
        cls.add_del_mcast_tunnels_load(is_add=1)

    @classmethod
    def del_mcast_tunnels_load(cls):
        cls.add_del_mcast_tunnels_load(is_add=0)

    # Class method to start the VXLAN-GPE test case.
    #  Overrides setUpClass method in VppTestCase class.
    #  Python try..except statement is used to ensure that the tear down of
    #  the class will be executed even if exception is raised.
    #  @param cls The class pointer.
    @classmethod
    def setUpClass(cls):
        super(TestVxlanGpe, cls).setUpClass()

        try:
            cls.dport = 4790
            cls.flags = 0x0c

            # Create 2 pg interfaces.
            cls.create_pg_interfaces(range(4))
            for pg in cls.pg_interfaces:
                pg.admin_up()

            # Configure IPv4 addresses on VPP pg0.
            cls.pg0.config_ip4()

            # Resolve MAC address for VPP's IP address on pg0.
            cls.pg0.resolve_arp()

            # Our Multicast address
            cls.mcast_ip4 = '239.1.1.1'
            cls.mcast_ip4n = socket.inet_pton(socket.AF_INET, cls.mcast_ip4)
            iplong = atol(cls.mcast_ip4)
            cls.mcast_mac = "01:00:5e:%02x:%02x:%02x" % (
                (iplong >> 16) & 0x7F, (iplong >> 8) & 0xFF, iplong & 0xFF)

            # Create VXLAN-GPE VTEP on VPP pg0, and put vxlan_gpe_tunnel0
            # and pg1 into BD.
            cls.single_tunnel_bd = 11
            r = cls.vapi.vxlan_gpe_add_del_tunnel(
                src_addr=cls.pg0.local_ip4n,
                dst_addr=cls.pg0.remote_ip4n,
                vni=cls.single_tunnel_bd)
            cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
                                                bd_id=cls.single_tunnel_bd)
            cls.vapi.sw_interface_set_l2_bridge(
                rx_sw_if_index=cls.pg1.sw_if_index, bd_id=cls.single_tunnel_bd)

            # Setup vni 2 to test multicast flooding
            cls.n_ucast_tunnels = 10
            cls.mcast_flood_bd = 12
            cls.create_vxlan_gpe_flood_test_bd(cls.mcast_flood_bd,
                                               cls.n_ucast_tunnels)
            r = cls.vapi.vxlan_gpe_add_del_tunnel(
                src_addr=cls.pg0.local_ip4n,
                dst_addr=cls.mcast_ip4n,
                mcast_sw_if_index=1,
                vni=cls.mcast_flood_bd)
            cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index,
                                                bd_id=cls.mcast_flood_bd)
            cls.vapi.sw_interface_set_l2_bridge(
                rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd)

            # Add and delete mcast tunnels to check stability
            cls.add_shared_mcast_dst_load()
            cls.add_mcast_tunnels_load()
            cls.del_shared_mcast_dst_load()
            cls.del_mcast_tunnels_load()

            # Setup vni 3 to test unicast flooding
            cls.ucast_flood_bd = 13
            cls.create_vxlan_gpe_flood_test_bd(cls.ucast_flood_bd,
                                               cls.n_ucast_tunnels)
            cls.vapi.sw_interface_set_l2_bridge(
                rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd)
        except Exception:
            super(TestVxlanGpe, cls).tearDownClass()
            raise

    @classmethod
    def tearDownClass(cls):
        super(TestVxlanGpe, cls).tearDownClass()

    @unittest.skip("test disabled for vxlan-gpe")
    def test_mcast_flood(self):
        """ inherited from BridgeDomain """
        pass

    @unittest.skip("test disabled for vxlan-gpe")
    def test_mcast_rcv(self):
        """ inherited from BridgeDomain """
        pass

    # Method to define VPP actions before tear down of the test case.
    #  Overrides tearDown method in VppTestCase class.
    #  @param self The object pointer.
    def tearDown(self):
        super(TestVxlanGpe, self).tearDown()

    def show_commands_at_teardown(self):
        self.logger.info(self.vapi.cli("show bridge-domain 11 detail"))
        self.logger.info(self.vapi.cli("show bridge-domain 12 detail"))
        self.logger.info(self.vapi.cli("show bridge-domain 13 detail"))
        self.logger.info(self.vapi.cli("show int"))
        self.logger.info(self.vapi.cli("show vxlan-gpe"))
        self.logger.info(self.vapi.cli("show trace"))


if __name__ == '__main__':
    unittest.main(testRunner=VppTestRunner)