7f9b7f9f49
Continuation/Part 2 of https://gerrit.fd.io/r/#/c/17092/ Change-Id: Id0122d84eaf2c05d29e5be63a594d5e528ee7c9a Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
1864 lines
63 KiB
Python
1864 lines
63 KiB
Python
#!/usr/bin/env python
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import binascii
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import random
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import socket
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import unittest
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import scapy.compat
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from scapy.contrib.mpls import MPLS
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from scapy.layers.inet import IP, UDP, TCP, ICMP, icmptypes, icmpcodes
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from scapy.layers.l2 import Ether, Dot1Q, ARP
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from scapy.packet import Raw
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from six import moves
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from framework import VppTestCase, VppTestRunner
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from util import ppp
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from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpMRoute, \
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VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \
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VppMplsTable, VppIpTable
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from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
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class TestIPv4(VppTestCase):
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""" IPv4 Test Case """
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@classmethod
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def setUpClass(cls):
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super(TestIPv4, cls).setUpClass()
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@classmethod
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def tearDownClass(cls):
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super(TestIPv4, cls).tearDownClass()
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def setUp(self):
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"""
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Perform test setup before test case.
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**Config:**
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- create 3 pg interfaces
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- untagged pg0 interface
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- Dot1Q subinterface on pg1
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- Dot1AD subinterface on pg2
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- setup interfaces:
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- put it into UP state
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- set IPv4 addresses
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- resolve neighbor address using ARP
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- configure 200 fib entries
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:ivar list interfaces: pg interfaces and subinterfaces.
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:ivar dict flows: IPv4 packet flows in test.
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"""
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super(TestIPv4, self).setUp()
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# create 3 pg interfaces
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self.create_pg_interfaces(range(3))
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# create 2 subinterfaces for pg1 and pg2
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self.sub_interfaces = [
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VppDot1QSubint(self, self.pg1, 100),
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VppDot1ADSubint(self, self.pg2, 200, 300, 400)]
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# packet flows mapping pg0 -> pg1.sub, pg2.sub, etc.
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self.flows = dict()
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self.flows[self.pg0] = [self.pg1.sub_if, self.pg2.sub_if]
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self.flows[self.pg1.sub_if] = [self.pg0, self.pg2.sub_if]
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self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
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# packet sizes
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self.pg_if_packet_sizes = [64, 1500, 9020]
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self.interfaces = list(self.pg_interfaces)
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self.interfaces.extend(self.sub_interfaces)
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# setup all interfaces
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for i in self.interfaces:
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i.admin_up()
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i.config_ip4()
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i.resolve_arp()
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# config 2M FIB entries
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self.config_fib_entries(200)
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def tearDown(self):
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"""Run standard test teardown and log ``show ip arp``."""
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super(TestIPv4, self).tearDown()
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if not self.vpp_dead:
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self.logger.info(self.vapi.cli("show ip arp"))
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# info(self.vapi.cli("show ip fib")) # many entries
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def config_fib_entries(self, count):
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"""For each interface add to the FIB table *count* routes to
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"10.0.0.1/32" destination with interface's local address as next-hop
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address.
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:param int count: Number of FIB entries.
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- *TODO:* check if the next-hop address shouldn't be remote address
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instead of local address.
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"""
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n_int = len(self.interfaces)
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percent = 0
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counter = 0.0
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dest_addr = socket.inet_pton(socket.AF_INET, "10.0.0.1")
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dest_addr_len = 32
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for i in self.interfaces:
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next_hop_address = i.local_ip4n
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for j in range(count / n_int):
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self.vapi.ip_add_del_route(dst_address=dest_addr,
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dst_address_length=dest_addr_len,
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next_hop_address=next_hop_address)
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counter += 1
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if counter / count * 100 > percent:
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self.logger.info("Configure %d FIB entries .. %d%% done" %
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(count, percent))
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percent += 1
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def modify_packet(self, src_if, packet_size, pkt):
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"""Add load, set destination IP and extend packet to required packet
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size for defined interface.
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:param VppInterface src_if: Interface to create packet for.
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:param int packet_size: Required packet size.
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:param Scapy pkt: Packet to be modified.
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"""
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dst_if_idx = packet_size / 10 % 2
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dst_if = self.flows[src_if][dst_if_idx]
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info = self.create_packet_info(src_if, dst_if)
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payload = self.info_to_payload(info)
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p = pkt/Raw(payload)
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p[IP].dst = dst_if.remote_ip4
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info.data = p.copy()
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if isinstance(src_if, VppSubInterface):
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p = src_if.add_dot1_layer(p)
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self.extend_packet(p, packet_size)
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return p
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def create_stream(self, src_if):
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"""Create input packet stream for defined interface.
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:param VppInterface src_if: Interface to create packet stream for.
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"""
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hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
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pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
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IP(src=src_if.remote_ip4) /
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UDP(sport=1234, dport=1234))
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pkts = [self.modify_packet(src_if, i, pkt_tmpl)
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for i in moves.range(self.pg_if_packet_sizes[0],
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self.pg_if_packet_sizes[1], 10)]
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pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
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for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
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self.pg_if_packet_sizes[2] + hdr_ext,
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50)]
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pkts.extend(pkts_b)
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return pkts
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def verify_capture(self, dst_if, capture):
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"""Verify captured input packet stream for defined interface.
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:param VppInterface dst_if: Interface to verify captured packet stream
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for.
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:param list capture: Captured packet stream.
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"""
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self.logger.info("Verifying capture on interface %s" % dst_if.name)
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last_info = dict()
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for i in self.interfaces:
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last_info[i.sw_if_index] = None
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is_sub_if = False
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dst_sw_if_index = dst_if.sw_if_index
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if hasattr(dst_if, 'parent'):
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is_sub_if = True
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for packet in capture:
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if is_sub_if:
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# Check VLAN tags and Ethernet header
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packet = dst_if.remove_dot1_layer(packet)
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self.assertTrue(Dot1Q not in packet)
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try:
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ip = packet[IP]
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udp = packet[UDP]
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payload_info = self.payload_to_info(packet[Raw])
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packet_index = payload_info.index
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self.assertEqual(payload_info.dst, dst_sw_if_index)
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self.logger.debug(
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"Got packet on port %s: src=%u (id=%u)" %
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(dst_if.name, payload_info.src, packet_index))
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next_info = self.get_next_packet_info_for_interface2(
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payload_info.src, dst_sw_if_index,
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last_info[payload_info.src])
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last_info[payload_info.src] = next_info
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self.assertTrue(next_info is not None)
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self.assertEqual(packet_index, next_info.index)
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saved_packet = next_info.data
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# Check standard fields
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self.assertEqual(ip.src, saved_packet[IP].src)
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self.assertEqual(ip.dst, saved_packet[IP].dst)
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self.assertEqual(udp.sport, saved_packet[UDP].sport)
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self.assertEqual(udp.dport, saved_packet[UDP].dport)
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except:
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self.logger.error(ppp("Unexpected or invalid packet:", packet))
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raise
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for i in self.interfaces:
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remaining_packet = self.get_next_packet_info_for_interface2(
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i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
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self.assertTrue(remaining_packet is None,
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"Interface %s: Packet expected from interface %s "
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"didn't arrive" % (dst_if.name, i.name))
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def test_fib(self):
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""" IPv4 FIB test
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Test scenario:
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- Create IPv4 stream for pg0 interface
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- Create IPv4 tagged streams for pg1's and pg2's sub-interface.
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- Send and verify received packets on each interface.
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"""
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pkts = self.create_stream(self.pg0)
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self.pg0.add_stream(pkts)
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for i in self.sub_interfaces:
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pkts = self.create_stream(i)
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i.parent.add_stream(pkts)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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pkts = self.pg0.get_capture()
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self.verify_capture(self.pg0, pkts)
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for i in self.sub_interfaces:
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pkts = i.parent.get_capture()
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self.verify_capture(i, pkts)
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class TestICMPEcho(VppTestCase):
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""" ICMP Echo Test Case """
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@classmethod
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def setUpClass(cls):
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super(TestICMPEcho, cls).setUpClass()
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@classmethod
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def tearDownClass(cls):
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super(TestICMPEcho, cls).tearDownClass()
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def setUp(self):
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super(TestICMPEcho, self).setUp()
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# create 1 pg interface
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self.create_pg_interfaces(range(1))
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for i in self.pg_interfaces:
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i.admin_up()
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i.config_ip4()
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i.resolve_arp()
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def tearDown(self):
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super(TestICMPEcho, self).tearDown()
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for i in self.pg_interfaces:
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i.unconfig_ip4()
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i.admin_down()
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def test_icmp_echo(self):
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""" VPP replies to ICMP Echo Request
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Test scenario:
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- Receive ICMP Echo Request message on pg0 interface.
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- Check outgoing ICMP Echo Reply message on pg0 interface.
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"""
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icmp_id = 0xb
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icmp_seq = 5
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icmp_load = '\x0a' * 18
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p_echo_request = (Ether(src=self.pg0.remote_mac,
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dst=self.pg0.local_mac) /
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IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
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ICMP(id=icmp_id, seq=icmp_seq) /
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Raw(load=icmp_load))
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self.pg0.add_stream(p_echo_request)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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rx = self.pg0.get_capture(1)
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rx = rx[0]
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ether = rx[Ether]
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ipv4 = rx[IP]
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icmp = rx[ICMP]
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self.assertEqual(ether.src, self.pg0.local_mac)
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self.assertEqual(ether.dst, self.pg0.remote_mac)
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self.assertEqual(ipv4.src, self.pg0.local_ip4)
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self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
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self.assertEqual(icmptypes[icmp.type], "echo-reply")
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self.assertEqual(icmp.id, icmp_id)
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self.assertEqual(icmp.seq, icmp_seq)
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self.assertEqual(icmp[Raw].load, icmp_load)
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class TestIPv4FibCrud(VppTestCase):
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""" FIB - add/update/delete - ip4 routes
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Test scenario:
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- add 1k,
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- del 100,
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- add new 1k,
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- del 1.5k
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..note:: Python API is too slow to add many routes, needs replacement.
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"""
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def config_fib_many_to_one(self, start_dest_addr, next_hop_addr, count):
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"""
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:param start_dest_addr:
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:param next_hop_addr:
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:param count:
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:return list: added ips with 32 prefix
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"""
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added_ips = []
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dest_addr = int(binascii.hexlify(socket.inet_pton(socket.AF_INET,
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start_dest_addr)), 16)
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dest_addr_len = 32
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n_next_hop_addr = socket.inet_pton(socket.AF_INET, next_hop_addr)
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for _ in range(count):
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n_dest_addr = binascii.unhexlify('{:08x}'.format(dest_addr))
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self.vapi.ip_add_del_route(dst_address=n_dest_addr,
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dst_address_length=dest_addr_len,
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next_hop_address=n_next_hop_addr)
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added_ips.append(socket.inet_ntoa(n_dest_addr))
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dest_addr += 1
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return added_ips
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def unconfig_fib_many_to_one(self, start_dest_addr, next_hop_addr, count):
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removed_ips = []
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dest_addr = int(binascii.hexlify(socket.inet_pton(socket.AF_INET,
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start_dest_addr)), 16)
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dest_addr_len = 32
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n_next_hop_addr = socket.inet_pton(socket.AF_INET, next_hop_addr)
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for _ in range(count):
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n_dest_addr = binascii.unhexlify('{:08x}'.format(dest_addr))
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self.vapi.ip_add_del_route(dst_address=n_dest_addr,
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dst_address_length=dest_addr_len,
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next_hop_address=n_next_hop_addr,
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is_add=0)
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removed_ips.append(socket.inet_ntoa(n_dest_addr))
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dest_addr += 1
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return removed_ips
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def create_stream(self, src_if, dst_if, dst_ips, count):
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pkts = []
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for _ in range(count):
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dst_addr = random.choice(dst_ips)
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info = self.create_packet_info(src_if, dst_if)
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payload = self.info_to_payload(info)
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p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
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IP(src=src_if.remote_ip4, dst=dst_addr) /
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UDP(sport=1234, dport=1234) /
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Raw(payload))
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info.data = p.copy()
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self.extend_packet(p, random.choice(self.pg_if_packet_sizes))
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pkts.append(p)
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return pkts
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def _find_ip_match(self, find_in, pkt):
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for p in find_in:
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if self.payload_to_info(p[Raw]) == \
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self.payload_to_info(pkt[Raw]):
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if p[IP].src != pkt[IP].src:
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break
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if p[IP].dst != pkt[IP].dst:
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break
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if p[UDP].sport != pkt[UDP].sport:
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break
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if p[UDP].dport != pkt[UDP].dport:
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break
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return p
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return None
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@staticmethod
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def _match_route_detail(route_detail, ip, address_length=32, table_id=0):
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if route_detail.address == socket.inet_pton(socket.AF_INET, ip):
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if route_detail.table_id != table_id:
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return False
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elif route_detail.address_length != address_length:
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return False
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else:
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return True
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else:
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return False
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def verify_capture(self, dst_interface, received_pkts, expected_pkts):
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self.assertEqual(len(received_pkts), len(expected_pkts))
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to_verify = list(expected_pkts)
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for p in received_pkts:
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self.assertEqual(p.src, dst_interface.local_mac)
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self.assertEqual(p.dst, dst_interface.remote_mac)
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x = self._find_ip_match(to_verify, p)
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to_verify.remove(x)
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self.assertListEqual(to_verify, [])
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def verify_route_dump(self, fib_dump, ips):
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def _ip_in_route_dump(ip, fib_dump):
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return next((route for route in fib_dump
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if self._match_route_detail(route, ip)),
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False)
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for ip in ips:
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self.assertTrue(_ip_in_route_dump(ip, fib_dump),
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'IP {!s} is not in fib dump.'.format(ip))
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def verify_not_in_route_dump(self, fib_dump, ips):
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def _ip_in_route_dump(ip, fib_dump):
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return next((route for route in fib_dump
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if self._match_route_detail(route, ip)),
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False)
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for ip in ips:
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self.assertFalse(_ip_in_route_dump(ip, fib_dump),
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'IP {!s} is in fib dump.'.format(ip))
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|
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@classmethod
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def setUpClass(cls):
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"""
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#. Create and initialize 3 pg interfaces.
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#. initialize class attributes configured_routes and deleted_routes
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to store information between tests.
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"""
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super(TestIPv4FibCrud, cls).setUpClass()
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try:
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# create 3 pg interfaces
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cls.create_pg_interfaces(range(3))
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cls.interfaces = list(cls.pg_interfaces)
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# setup all interfaces
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for i in cls.interfaces:
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i.admin_up()
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i.config_ip4()
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i.resolve_arp()
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cls.configured_routes = []
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cls.deleted_routes = []
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cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
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except Exception:
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super(TestIPv4FibCrud, cls).tearDownClass()
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raise
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|
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@classmethod
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def tearDownClass(cls):
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super(TestIPv4FibCrud, cls).tearDownClass()
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def setUp(self):
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super(TestIPv4FibCrud, self).setUp()
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self.reset_packet_infos()
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self.configured_routes = []
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self.deleted_routes = []
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def test_1_add_routes(self):
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""" Add 1k routes
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- add 100 routes check with traffic script.
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"""
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# config 1M FIB entries
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self.configured_routes.extend(self.config_fib_many_to_one(
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"10.0.0.0", self.pg0.remote_ip4, 100))
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fib_dump = self.vapi.ip_fib_dump()
|
|
self.verify_route_dump(fib_dump, self.configured_routes)
|
|
|
|
self.stream_1 = self.create_stream(
|
|
self.pg1, self.pg0, self.configured_routes, 100)
|
|
self.stream_2 = self.create_stream(
|
|
self.pg2, self.pg0, self.configured_routes, 100)
|
|
self.pg1.add_stream(self.stream_1)
|
|
self.pg2.add_stream(self.stream_2)
|
|
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
|
|
pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
|
|
self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
|
|
|
|
def test_2_del_routes(self):
|
|
""" Delete 100 routes
|
|
|
|
- delete 10 routes check with traffic script.
|
|
"""
|
|
# config 1M FIB entries
|
|
self.configured_routes.extend(self.config_fib_many_to_one(
|
|
"10.0.0.0", self.pg0.remote_ip4, 100))
|
|
self.deleted_routes.extend(self.unconfig_fib_many_to_one(
|
|
"10.0.0.10", self.pg0.remote_ip4, 10))
|
|
for x in self.deleted_routes:
|
|
self.configured_routes.remove(x)
|
|
|
|
fib_dump = self.vapi.ip_fib_dump()
|
|
self.verify_route_dump(fib_dump, self.configured_routes)
|
|
|
|
self.stream_1 = self.create_stream(
|
|
self.pg1, self.pg0, self.configured_routes, 100)
|
|
self.stream_2 = self.create_stream(
|
|
self.pg2, self.pg0, self.configured_routes, 100)
|
|
self.stream_3 = self.create_stream(
|
|
self.pg1, self.pg0, self.deleted_routes, 100)
|
|
self.stream_4 = self.create_stream(
|
|
self.pg2, self.pg0, self.deleted_routes, 100)
|
|
self.pg1.add_stream(self.stream_1 + self.stream_3)
|
|
self.pg2.add_stream(self.stream_2 + self.stream_4)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
|
|
pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
|
|
self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
|
|
|
|
def test_3_add_new_routes(self):
|
|
""" Add 1k routes
|
|
|
|
- re-add 5 routes check with traffic script.
|
|
- add 100 routes check with traffic script.
|
|
"""
|
|
# config 1M FIB entries
|
|
self.configured_routes.extend(self.config_fib_many_to_one(
|
|
"10.0.0.0", self.pg0.remote_ip4, 100))
|
|
self.deleted_routes.extend(self.unconfig_fib_many_to_one(
|
|
"10.0.0.10", self.pg0.remote_ip4, 10))
|
|
for x in self.deleted_routes:
|
|
self.configured_routes.remove(x)
|
|
|
|
tmp = self.config_fib_many_to_one(
|
|
"10.0.0.10", self.pg0.remote_ip4, 5)
|
|
self.configured_routes.extend(tmp)
|
|
for x in tmp:
|
|
self.deleted_routes.remove(x)
|
|
|
|
self.configured_routes.extend(self.config_fib_many_to_one(
|
|
"10.0.1.0", self.pg0.remote_ip4, 100))
|
|
|
|
fib_dump = self.vapi.ip_fib_dump()
|
|
self.verify_route_dump(fib_dump, self.configured_routes)
|
|
|
|
self.stream_1 = self.create_stream(
|
|
self.pg1, self.pg0, self.configured_routes, 300)
|
|
self.stream_2 = self.create_stream(
|
|
self.pg2, self.pg0, self.configured_routes, 300)
|
|
self.stream_3 = self.create_stream(
|
|
self.pg1, self.pg0, self.deleted_routes, 100)
|
|
self.stream_4 = self.create_stream(
|
|
self.pg2, self.pg0, self.deleted_routes, 100)
|
|
|
|
self.pg1.add_stream(self.stream_1 + self.stream_3)
|
|
self.pg2.add_stream(self.stream_2 + self.stream_4)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
|
|
pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
|
|
self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
|
|
|
|
def test_4_del_routes(self):
|
|
""" Delete 1.5k routes
|
|
|
|
- delete 5 routes check with traffic script.
|
|
- add 100 routes check with traffic script.
|
|
"""
|
|
self.deleted_routes.extend(self.unconfig_fib_many_to_one(
|
|
"10.0.0.0", self.pg0.remote_ip4, 15))
|
|
self.deleted_routes.extend(self.unconfig_fib_many_to_one(
|
|
"10.0.0.20", self.pg0.remote_ip4, 85))
|
|
self.deleted_routes.extend(self.unconfig_fib_many_to_one(
|
|
"10.0.1.0", self.pg0.remote_ip4, 100))
|
|
fib_dump = self.vapi.ip_fib_dump()
|
|
self.verify_not_in_route_dump(fib_dump, self.deleted_routes)
|
|
|
|
|
|
class TestIPNull(VppTestCase):
|
|
""" IPv4 routes via NULL """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPNull, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPNull, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPNull, self).setUp()
|
|
|
|
# create 2 pg interfaces
|
|
self.create_pg_interfaces(range(2))
|
|
|
|
for i in self.pg_interfaces:
|
|
i.admin_up()
|
|
i.config_ip4()
|
|
i.resolve_arp()
|
|
|
|
def tearDown(self):
|
|
super(TestIPNull, self).tearDown()
|
|
for i in self.pg_interfaces:
|
|
i.unconfig_ip4()
|
|
i.admin_down()
|
|
|
|
def test_ip_null(self):
|
|
""" IP NULL route """
|
|
|
|
#
|
|
# A route via IP NULL that will reply with ICMP unreachables
|
|
#
|
|
ip_unreach = VppIpRoute(self, "10.0.0.1", 32, [], is_unreach=1)
|
|
ip_unreach.add_vpp_config()
|
|
|
|
p_unreach = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4, dst="10.0.0.1") /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
self.pg0.add_stream(p_unreach)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
|
|
rx = self.pg0.get_capture(1)
|
|
rx = rx[0]
|
|
icmp = rx[ICMP]
|
|
|
|
self.assertEqual(icmptypes[icmp.type], "dest-unreach")
|
|
self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-unreachable")
|
|
self.assertEqual(icmp.src, self.pg0.remote_ip4)
|
|
self.assertEqual(icmp.dst, "10.0.0.1")
|
|
|
|
#
|
|
# ICMP replies are rate limited. so sit and spin.
|
|
#
|
|
self.sleep(1)
|
|
|
|
#
|
|
# A route via IP NULL that will reply with ICMP prohibited
|
|
#
|
|
ip_prohibit = VppIpRoute(self, "10.0.0.2", 32, [], is_prohibit=1)
|
|
ip_prohibit.add_vpp_config()
|
|
|
|
p_prohibit = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4, dst="10.0.0.2") /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
self.pg0.add_stream(p_prohibit)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
|
|
rx = self.pg0.get_capture(1)
|
|
|
|
rx = rx[0]
|
|
icmp = rx[ICMP]
|
|
|
|
self.assertEqual(icmptypes[icmp.type], "dest-unreach")
|
|
self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-prohibited")
|
|
self.assertEqual(icmp.src, self.pg0.remote_ip4)
|
|
self.assertEqual(icmp.dst, "10.0.0.2")
|
|
|
|
def test_ip_drop(self):
|
|
""" IP Drop Routes """
|
|
|
|
p = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4, dst="1.1.1.1") /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
r1 = VppIpRoute(self, "1.1.1.0", 24,
|
|
[VppRoutePath(self.pg1.remote_ip4,
|
|
self.pg1.sw_if_index)])
|
|
r1.add_vpp_config()
|
|
|
|
rx = self.send_and_expect(self.pg0, p * 65, self.pg1)
|
|
|
|
#
|
|
# insert a more specific as a drop
|
|
#
|
|
r2 = VppIpRoute(self, "1.1.1.1", 32, [], is_drop=1)
|
|
r2.add_vpp_config()
|
|
|
|
self.send_and_assert_no_replies(self.pg0, p * 65, "Drop Route")
|
|
r2.remove_vpp_config()
|
|
rx = self.send_and_expect(self.pg0, p * 65, self.pg1)
|
|
|
|
|
|
class TestIPDisabled(VppTestCase):
|
|
""" IPv4 disabled """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPDisabled, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPDisabled, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPDisabled, self).setUp()
|
|
|
|
# create 2 pg interfaces
|
|
self.create_pg_interfaces(range(2))
|
|
|
|
# PG0 is IP enalbed
|
|
self.pg0.admin_up()
|
|
self.pg0.config_ip4()
|
|
self.pg0.resolve_arp()
|
|
|
|
# PG 1 is not IP enabled
|
|
self.pg1.admin_up()
|
|
|
|
def tearDown(self):
|
|
super(TestIPDisabled, self).tearDown()
|
|
for i in self.pg_interfaces:
|
|
i.unconfig_ip4()
|
|
i.admin_down()
|
|
|
|
def test_ip_disabled(self):
|
|
""" IP Disabled """
|
|
|
|
#
|
|
# An (S,G).
|
|
# one accepting interface, pg0, 2 forwarding interfaces
|
|
#
|
|
route_232_1_1_1 = VppIpMRoute(
|
|
self,
|
|
"0.0.0.0",
|
|
"232.1.1.1", 32,
|
|
MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
|
|
[VppMRoutePath(self.pg1.sw_if_index,
|
|
MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
|
|
VppMRoutePath(self.pg0.sw_if_index,
|
|
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
|
|
route_232_1_1_1.add_vpp_config()
|
|
|
|
pu = (Ether(src=self.pg1.remote_mac,
|
|
dst=self.pg1.local_mac) /
|
|
IP(src="10.10.10.10", dst=self.pg0.remote_ip4) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
pm = (Ether(src=self.pg1.remote_mac,
|
|
dst=self.pg1.local_mac) /
|
|
IP(src="10.10.10.10", dst="232.1.1.1") /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
#
|
|
# PG1 does not forward IP traffic
|
|
#
|
|
self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
|
|
self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
|
|
|
|
#
|
|
# IP enable PG1
|
|
#
|
|
self.pg1.config_ip4()
|
|
|
|
#
|
|
# Now we get packets through
|
|
#
|
|
self.pg1.add_stream(pu)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rx = self.pg0.get_capture(1)
|
|
|
|
self.pg1.add_stream(pm)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rx = self.pg0.get_capture(1)
|
|
|
|
#
|
|
# Disable PG1
|
|
#
|
|
self.pg1.unconfig_ip4()
|
|
|
|
#
|
|
# PG1 does not forward IP traffic
|
|
#
|
|
self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
|
|
self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
|
|
|
|
|
|
class TestIPSubNets(VppTestCase):
|
|
""" IPv4 Subnets """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPSubNets, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPSubNets, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPSubNets, self).setUp()
|
|
|
|
# create a 2 pg interfaces
|
|
self.create_pg_interfaces(range(2))
|
|
|
|
# pg0 we will use to experiment
|
|
self.pg0.admin_up()
|
|
|
|
# pg1 is setup normally
|
|
self.pg1.admin_up()
|
|
self.pg1.config_ip4()
|
|
self.pg1.resolve_arp()
|
|
|
|
def tearDown(self):
|
|
super(TestIPSubNets, self).tearDown()
|
|
for i in self.pg_interfaces:
|
|
i.admin_down()
|
|
|
|
def test_ip_sub_nets(self):
|
|
""" IP Sub Nets """
|
|
|
|
#
|
|
# Configure a covering route to forward so we know
|
|
# when we are dropping
|
|
#
|
|
cover_route = VppIpRoute(self, "10.0.0.0", 8,
|
|
[VppRoutePath(self.pg1.remote_ip4,
|
|
self.pg1.sw_if_index)])
|
|
cover_route.add_vpp_config()
|
|
|
|
p = (Ether(src=self.pg1.remote_mac,
|
|
dst=self.pg1.local_mac) /
|
|
IP(dst="10.10.10.10", src=self.pg0.local_ip4) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
self.pg1.add_stream(p)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rx = self.pg1.get_capture(1)
|
|
|
|
#
|
|
# Configure some non-/24 subnets on an IP interface
|
|
#
|
|
ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
|
|
|
|
self.vapi.sw_interface_add_del_address(
|
|
sw_if_index=self.pg0.sw_if_index, address=ip_addr_n,
|
|
address_length=16)
|
|
|
|
pn = (Ether(src=self.pg1.remote_mac,
|
|
dst=self.pg1.local_mac) /
|
|
IP(dst="10.10.0.0", src=self.pg0.local_ip4) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
pb = (Ether(src=self.pg1.remote_mac,
|
|
dst=self.pg1.local_mac) /
|
|
IP(dst="10.10.255.255", src=self.pg0.local_ip4) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
self.send_and_assert_no_replies(self.pg1, pn, "IP Network address")
|
|
self.send_and_assert_no_replies(self.pg1, pb, "IP Broadcast address")
|
|
|
|
# remove the sub-net and we are forwarding via the cover again
|
|
self.vapi.sw_interface_add_del_address(
|
|
sw_if_index=self.pg0.sw_if_index, address=ip_addr_n,
|
|
address_length=16, is_add=0)
|
|
self.pg1.add_stream(pn)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rx = self.pg1.get_capture(1)
|
|
self.pg1.add_stream(pb)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rx = self.pg1.get_capture(1)
|
|
|
|
#
|
|
# A /31 is a special case where the 'other-side' is an attached host
|
|
# packets to that peer generate ARP requests
|
|
#
|
|
ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
|
|
|
|
self.vapi.sw_interface_add_del_address(
|
|
sw_if_index=self.pg0.sw_if_index, address=ip_addr_n,
|
|
address_length=31)
|
|
|
|
pn = (Ether(src=self.pg1.remote_mac,
|
|
dst=self.pg1.local_mac) /
|
|
IP(dst="10.10.10.11", src=self.pg0.local_ip4) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
self.pg1.add_stream(pn)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rx = self.pg0.get_capture(1)
|
|
rx[ARP]
|
|
|
|
# remove the sub-net and we are forwarding via the cover again
|
|
self.vapi.sw_interface_add_del_address(
|
|
sw_if_index=self.pg0.sw_if_index, address=ip_addr_n,
|
|
address_length=31, is_add=0)
|
|
self.pg1.add_stream(pn)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rx = self.pg1.get_capture(1)
|
|
|
|
|
|
class TestIPLoadBalance(VppTestCase):
|
|
""" IPv4 Load-Balancing """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPLoadBalance, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPLoadBalance, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPLoadBalance, self).setUp()
|
|
|
|
self.create_pg_interfaces(range(5))
|
|
mpls_tbl = VppMplsTable(self, 0)
|
|
mpls_tbl.add_vpp_config()
|
|
|
|
for i in self.pg_interfaces:
|
|
i.admin_up()
|
|
i.config_ip4()
|
|
i.resolve_arp()
|
|
i.enable_mpls()
|
|
|
|
def tearDown(self):
|
|
for i in self.pg_interfaces:
|
|
i.disable_mpls()
|
|
i.unconfig_ip4()
|
|
i.admin_down()
|
|
super(TestIPLoadBalance, self).tearDown()
|
|
|
|
def send_and_expect_load_balancing(self, input, pkts, outputs):
|
|
input.add_stream(pkts)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rxs = []
|
|
for oo in outputs:
|
|
rx = oo._get_capture(1)
|
|
self.assertNotEqual(0, len(rx))
|
|
for r in rx:
|
|
rxs.append(r)
|
|
return rxs
|
|
|
|
def send_and_expect_one_itf(self, input, pkts, itf):
|
|
input.add_stream(pkts)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
rx = itf.get_capture(len(pkts))
|
|
|
|
def test_ip_load_balance(self):
|
|
""" IP Load-Balancing """
|
|
|
|
#
|
|
# An array of packets that differ only in the destination port
|
|
#
|
|
port_ip_pkts = []
|
|
port_mpls_pkts = []
|
|
|
|
#
|
|
# An array of packets that differ only in the source address
|
|
#
|
|
src_ip_pkts = []
|
|
src_mpls_pkts = []
|
|
|
|
for ii in range(65):
|
|
port_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.1") /
|
|
UDP(sport=1234, dport=1234 + ii) /
|
|
Raw('\xa5' * 100))
|
|
port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
port_ip_hdr))
|
|
port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
MPLS(label=66, ttl=2) /
|
|
port_ip_hdr))
|
|
|
|
src_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.%d" % ii) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
src_ip_hdr))
|
|
src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
MPLS(label=66, ttl=2) /
|
|
src_ip_hdr))
|
|
|
|
route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
|
|
[VppRoutePath(self.pg1.remote_ip4,
|
|
self.pg1.sw_if_index),
|
|
VppRoutePath(self.pg2.remote_ip4,
|
|
self.pg2.sw_if_index)])
|
|
route_10_0_0_1.add_vpp_config()
|
|
|
|
binding = VppMplsIpBind(self, 66, "10.0.0.1", 32)
|
|
binding.add_vpp_config()
|
|
|
|
#
|
|
# inject the packet on pg0 - expect load-balancing across the 2 paths
|
|
# - since the default hash config is to use IP src,dst and port
|
|
# src,dst
|
|
# We are not going to ensure equal amounts of packets across each link,
|
|
# since the hash algorithm is statistical and therefore this can never
|
|
# be guaranteed. But with 64 different packets we do expect some
|
|
# balancing. So instead just ensure there is traffic on each link.
|
|
#
|
|
self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
|
|
[self.pg1, self.pg2])
|
|
self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
|
|
[self.pg1, self.pg2])
|
|
self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
|
|
[self.pg1, self.pg2])
|
|
self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
|
|
[self.pg1, self.pg2])
|
|
|
|
#
|
|
# change the flow hash config so it's only IP src,dst
|
|
# - now only the stream with differing source address will
|
|
# load-balance
|
|
#
|
|
self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0)
|
|
|
|
self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
|
|
[self.pg1, self.pg2])
|
|
self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
|
|
[self.pg1, self.pg2])
|
|
|
|
self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
|
|
|
|
#
|
|
# change the flow hash config back to defaults
|
|
#
|
|
self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1)
|
|
|
|
#
|
|
# Recursive prefixes
|
|
# - testing that 2 stages of load-balancing occurs and there is no
|
|
# polarisation (i.e. only 2 of 4 paths are used)
|
|
#
|
|
port_pkts = []
|
|
src_pkts = []
|
|
|
|
for ii in range(257):
|
|
port_pkts.append((Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(dst="1.1.1.1", src="20.0.0.1") /
|
|
UDP(sport=1234, dport=1234 + ii) /
|
|
Raw('\xa5' * 100)))
|
|
src_pkts.append((Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(dst="1.1.1.1", src="20.0.0.%d" % ii) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100)))
|
|
|
|
route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
|
|
[VppRoutePath(self.pg3.remote_ip4,
|
|
self.pg3.sw_if_index),
|
|
VppRoutePath(self.pg4.remote_ip4,
|
|
self.pg4.sw_if_index)])
|
|
route_10_0_0_2.add_vpp_config()
|
|
|
|
route_1_1_1_1 = VppIpRoute(self, "1.1.1.1", 32,
|
|
[VppRoutePath("10.0.0.2", 0xffffffff),
|
|
VppRoutePath("10.0.0.1", 0xffffffff)])
|
|
route_1_1_1_1.add_vpp_config()
|
|
|
|
#
|
|
# inject the packet on pg0 - expect load-balancing across all 4 paths
|
|
#
|
|
self.vapi.cli("clear trace")
|
|
self.send_and_expect_load_balancing(self.pg0, port_pkts,
|
|
[self.pg1, self.pg2,
|
|
self.pg3, self.pg4])
|
|
self.send_and_expect_load_balancing(self.pg0, src_pkts,
|
|
[self.pg1, self.pg2,
|
|
self.pg3, self.pg4])
|
|
|
|
#
|
|
# bring down pg1 expect LB to adjust to use only those that are pu
|
|
#
|
|
self.pg1.link_down()
|
|
|
|
rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
|
|
[self.pg2, self.pg3,
|
|
self.pg4])
|
|
self.assertEqual(len(src_pkts), len(rx))
|
|
|
|
#
|
|
# bring down pg2 expect LB to adjust to use only those that are pu
|
|
#
|
|
self.pg2.link_down()
|
|
|
|
rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
|
|
[self.pg3, self.pg4])
|
|
self.assertEqual(len(src_pkts), len(rx))
|
|
|
|
#
|
|
# bring the links back up - expect LB over all again
|
|
#
|
|
self.pg1.link_up()
|
|
self.pg2.link_up()
|
|
|
|
rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
|
|
[self.pg1, self.pg2,
|
|
self.pg3, self.pg4])
|
|
self.assertEqual(len(src_pkts), len(rx))
|
|
|
|
#
|
|
# The same link-up/down but this time admin state
|
|
#
|
|
self.pg1.admin_down()
|
|
self.pg2.admin_down()
|
|
rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
|
|
[self.pg3, self.pg4])
|
|
self.assertEqual(len(src_pkts), len(rx))
|
|
self.pg1.admin_up()
|
|
self.pg2.admin_up()
|
|
self.pg1.resolve_arp()
|
|
self.pg2.resolve_arp()
|
|
rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
|
|
[self.pg1, self.pg2,
|
|
self.pg3, self.pg4])
|
|
self.assertEqual(len(src_pkts), len(rx))
|
|
|
|
#
|
|
# Recursive prefixes
|
|
# - testing that 2 stages of load-balancing, no choices
|
|
#
|
|
port_pkts = []
|
|
|
|
for ii in range(257):
|
|
port_pkts.append((Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(dst="1.1.1.2", src="20.0.0.2") /
|
|
UDP(sport=1234, dport=1234 + ii) /
|
|
Raw('\xa5' * 100)))
|
|
|
|
route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
|
|
[VppRoutePath(self.pg3.remote_ip4,
|
|
self.pg3.sw_if_index)])
|
|
route_10_0_0_3.add_vpp_config()
|
|
|
|
route_1_1_1_2 = VppIpRoute(self, "1.1.1.2", 32,
|
|
[VppRoutePath("10.0.0.3", 0xffffffff)])
|
|
route_1_1_1_2.add_vpp_config()
|
|
|
|
#
|
|
# inject the packet on pg0 - rx only on via routes output interface
|
|
#
|
|
self.vapi.cli("clear trace")
|
|
self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
|
|
|
|
#
|
|
# Add a LB route in the presence of a down link - expect no
|
|
# packets over the down link
|
|
#
|
|
self.pg3.link_down()
|
|
|
|
route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
|
|
[VppRoutePath(self.pg3.remote_ip4,
|
|
self.pg3.sw_if_index),
|
|
VppRoutePath(self.pg4.remote_ip4,
|
|
self.pg4.sw_if_index)])
|
|
route_10_0_0_3.add_vpp_config()
|
|
|
|
port_pkts = []
|
|
for ii in range(257):
|
|
port_pkts.append(Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(dst="10.0.0.3", src="20.0.0.2") /
|
|
UDP(sport=1234, dport=1234 + ii) /
|
|
Raw('\xa5' * 100))
|
|
|
|
self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4)
|
|
|
|
# bring the link back up
|
|
self.pg3.link_up()
|
|
|
|
rx = self.send_and_expect_load_balancing(self.pg0, port_pkts,
|
|
[self.pg3, self.pg4])
|
|
self.assertEqual(len(src_pkts), len(rx))
|
|
|
|
|
|
class TestIPVlan0(VppTestCase):
|
|
""" IPv4 VLAN-0 """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPVlan0, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPVlan0, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPVlan0, self).setUp()
|
|
|
|
self.create_pg_interfaces(range(2))
|
|
mpls_tbl = VppMplsTable(self, 0)
|
|
mpls_tbl.add_vpp_config()
|
|
|
|
for i in self.pg_interfaces:
|
|
i.admin_up()
|
|
i.config_ip4()
|
|
i.resolve_arp()
|
|
i.enable_mpls()
|
|
|
|
def tearDown(self):
|
|
for i in self.pg_interfaces:
|
|
i.disable_mpls()
|
|
i.unconfig_ip4()
|
|
i.admin_down()
|
|
super(TestIPVlan0, self).tearDown()
|
|
|
|
def test_ip_vlan_0(self):
|
|
""" IP VLAN-0 """
|
|
|
|
pkts = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
Dot1Q(vlan=0) /
|
|
IP(dst=self.pg1.remote_ip4,
|
|
src=self.pg0.remote_ip4) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100)) * 65
|
|
|
|
#
|
|
# Expect that packets sent on VLAN-0 are forwarded on the
|
|
# main interface.
|
|
#
|
|
self.send_and_expect(self.pg0, pkts, self.pg1)
|
|
|
|
|
|
class TestIPPunt(VppTestCase):
|
|
""" IPv4 Punt Police/Redirect """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPPunt, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPPunt, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPPunt, self).setUp()
|
|
|
|
self.create_pg_interfaces(range(4))
|
|
|
|
for i in self.pg_interfaces:
|
|
i.admin_up()
|
|
i.config_ip4()
|
|
i.resolve_arp()
|
|
|
|
def tearDown(self):
|
|
super(TestIPPunt, self).tearDown()
|
|
for i in self.pg_interfaces:
|
|
i.unconfig_ip4()
|
|
i.admin_down()
|
|
|
|
def test_ip_punt(self):
|
|
""" IP punt police and redirect """
|
|
|
|
p = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
|
|
TCP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
pkts = p * 1025
|
|
|
|
#
|
|
# Configure a punt redirect via pg1.
|
|
#
|
|
nh_addr = self.pg1.remote_ip4
|
|
self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
|
|
self.pg1.sw_if_index,
|
|
nh_addr)
|
|
|
|
self.send_and_expect(self.pg0, pkts, self.pg1)
|
|
|
|
#
|
|
# add a policer
|
|
#
|
|
policer = self.vapi.policer_add_del(b"ip4-punt", 400, 0, 10, 0,
|
|
rate_type=1)
|
|
self.vapi.ip_punt_police(policer.policer_index)
|
|
|
|
self.vapi.cli("clear trace")
|
|
self.pg0.add_stream(pkts)
|
|
self.pg_enable_capture(self.pg_interfaces)
|
|
self.pg_start()
|
|
|
|
#
|
|
# the number of packet received should be greater than 0,
|
|
# but not equal to the number sent, since some were policed
|
|
#
|
|
rx = self.pg1._get_capture(1)
|
|
self.assertGreater(len(rx), 0)
|
|
self.assertLess(len(rx), len(pkts))
|
|
|
|
#
|
|
# remove the policer. back to full rx
|
|
#
|
|
self.vapi.ip_punt_police(policer.policer_index, is_add=0)
|
|
self.vapi.policer_add_del(b"ip4-punt", 400, 0, 10, 0,
|
|
rate_type=1, is_add=0)
|
|
self.send_and_expect(self.pg0, pkts, self.pg1)
|
|
|
|
#
|
|
# remove the redirect. expect full drop.
|
|
#
|
|
self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
|
|
self.pg1.sw_if_index,
|
|
nh_addr,
|
|
is_add=0)
|
|
self.send_and_assert_no_replies(self.pg0, pkts,
|
|
"IP no punt config")
|
|
|
|
#
|
|
# Add a redirect that is not input port selective
|
|
#
|
|
self.vapi.ip_punt_redirect(0xffffffff,
|
|
self.pg1.sw_if_index,
|
|
nh_addr)
|
|
self.send_and_expect(self.pg0, pkts, self.pg1)
|
|
|
|
self.vapi.ip_punt_redirect(0xffffffff,
|
|
self.pg1.sw_if_index,
|
|
nh_addr,
|
|
is_add=0)
|
|
|
|
def test_ip_punt_dump(self):
|
|
""" IP4 punt redirect dump"""
|
|
|
|
#
|
|
# Configure a punt redirects
|
|
#
|
|
nh_address = self.pg3.remote_ip4
|
|
self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
|
|
self.pg3.sw_if_index,
|
|
nh_address)
|
|
self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
|
|
self.pg3.sw_if_index,
|
|
nh_address)
|
|
self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
|
|
self.pg3.sw_if_index,
|
|
'0.0.0.0')
|
|
|
|
#
|
|
# Dump pg0 punt redirects
|
|
#
|
|
punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index)
|
|
for p in punts:
|
|
self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index)
|
|
|
|
#
|
|
# Dump punt redirects for all interfaces
|
|
#
|
|
punts = self.vapi.ip_punt_redirect_dump(0xffffffff)
|
|
self.assertEqual(len(punts), 3)
|
|
for p in punts:
|
|
self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
|
|
self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip4)
|
|
self.assertEqual(str(punts[2].punt.nh), '0.0.0.0')
|
|
|
|
|
|
class TestIPDeag(VppTestCase):
|
|
""" IPv4 Deaggregate Routes """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPDeag, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPDeag, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPDeag, self).setUp()
|
|
|
|
self.create_pg_interfaces(range(3))
|
|
|
|
for i in self.pg_interfaces:
|
|
i.admin_up()
|
|
i.config_ip4()
|
|
i.resolve_arp()
|
|
|
|
def tearDown(self):
|
|
super(TestIPDeag, self).tearDown()
|
|
for i in self.pg_interfaces:
|
|
i.unconfig_ip4()
|
|
i.admin_down()
|
|
|
|
def test_ip_deag(self):
|
|
""" IP Deag Routes """
|
|
|
|
#
|
|
# Create a table to be used for:
|
|
# 1 - another destination address lookup
|
|
# 2 - a source address lookup
|
|
#
|
|
table_dst = VppIpTable(self, 1)
|
|
table_src = VppIpTable(self, 2)
|
|
table_dst.add_vpp_config()
|
|
table_src.add_vpp_config()
|
|
|
|
#
|
|
# Add a route in the default table to point to a deag/
|
|
# second lookup in each of these tables
|
|
#
|
|
route_to_dst = VppIpRoute(self, "1.1.1.1", 32,
|
|
[VppRoutePath("0.0.0.0",
|
|
0xffffffff,
|
|
nh_table_id=1)])
|
|
route_to_src = VppIpRoute(self, "1.1.1.2", 32,
|
|
[VppRoutePath("0.0.0.0",
|
|
0xffffffff,
|
|
nh_table_id=2,
|
|
is_source_lookup=1)])
|
|
route_to_dst.add_vpp_config()
|
|
route_to_src.add_vpp_config()
|
|
|
|
#
|
|
# packets to these destination are dropped, since they'll
|
|
# hit the respective default routes in the second table
|
|
#
|
|
p_dst = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src="5.5.5.5", dst="1.1.1.1") /
|
|
TCP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
p_src = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src="2.2.2.2", dst="1.1.1.2") /
|
|
TCP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
pkts_dst = p_dst * 257
|
|
pkts_src = p_src * 257
|
|
|
|
self.send_and_assert_no_replies(self.pg0, pkts_dst,
|
|
"IP in dst table")
|
|
self.send_and_assert_no_replies(self.pg0, pkts_src,
|
|
"IP in src table")
|
|
|
|
#
|
|
# add a route in the dst table to forward via pg1
|
|
#
|
|
route_in_dst = VppIpRoute(self, "1.1.1.1", 32,
|
|
[VppRoutePath(self.pg1.remote_ip4,
|
|
self.pg1.sw_if_index)],
|
|
table_id=1)
|
|
route_in_dst.add_vpp_config()
|
|
self.send_and_expect(self.pg0, pkts_dst, self.pg1)
|
|
|
|
#
|
|
# add a route in the src table to forward via pg2
|
|
#
|
|
route_in_src = VppIpRoute(self, "2.2.2.2", 32,
|
|
[VppRoutePath(self.pg2.remote_ip4,
|
|
self.pg2.sw_if_index)],
|
|
table_id=2)
|
|
route_in_src.add_vpp_config()
|
|
self.send_and_expect(self.pg0, pkts_src, self.pg2)
|
|
|
|
#
|
|
# loop in the lookup DP
|
|
#
|
|
route_loop = VppIpRoute(self, "2.2.2.3", 32,
|
|
[VppRoutePath("0.0.0.0",
|
|
0xffffffff,
|
|
nh_table_id=0)])
|
|
route_loop.add_vpp_config()
|
|
|
|
p_l = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src="2.2.2.4", dst="2.2.2.3") /
|
|
TCP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
self.send_and_assert_no_replies(self.pg0, p_l * 257,
|
|
"IP lookup loop")
|
|
|
|
|
|
class TestIPInput(VppTestCase):
|
|
""" IPv4 Input Exceptions """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPInput, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPInput, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPInput, self).setUp()
|
|
|
|
self.create_pg_interfaces(range(2))
|
|
|
|
for i in self.pg_interfaces:
|
|
i.admin_up()
|
|
i.config_ip4()
|
|
i.resolve_arp()
|
|
|
|
def tearDown(self):
|
|
super(TestIPInput, self).tearDown()
|
|
for i in self.pg_interfaces:
|
|
i.unconfig_ip4()
|
|
i.admin_down()
|
|
|
|
def test_ip_input(self):
|
|
""" IP Input Exceptions """
|
|
|
|
# i can't find a way in scapy to construct an IP packet
|
|
# with a length less than the IP header length
|
|
|
|
#
|
|
# Packet too short - this is forwarded
|
|
#
|
|
p_short = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4,
|
|
dst=self.pg1.remote_ip4,
|
|
len=40) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
rx = self.send_and_expect(self.pg0, p_short * 65, self.pg1)
|
|
|
|
#
|
|
# Packet too long - this is dropped
|
|
#
|
|
p_long = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4,
|
|
dst=self.pg1.remote_ip4,
|
|
len=400) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
rx = self.send_and_assert_no_replies(self.pg0, p_long * 65,
|
|
"too long")
|
|
|
|
#
|
|
# bad chksum - this is dropped
|
|
#
|
|
p_chksum = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4,
|
|
dst=self.pg1.remote_ip4,
|
|
chksum=400) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
rx = self.send_and_assert_no_replies(self.pg0, p_chksum * 65,
|
|
"bad checksum")
|
|
|
|
#
|
|
# bad version - this is dropped
|
|
#
|
|
p_ver = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4,
|
|
dst=self.pg1.remote_ip4,
|
|
version=3) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
rx = self.send_and_assert_no_replies(self.pg0, p_ver * 65,
|
|
"funky version")
|
|
|
|
#
|
|
# fragment offset 1 - this is dropped
|
|
#
|
|
p_frag = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4,
|
|
dst=self.pg1.remote_ip4,
|
|
frag=1) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
rx = self.send_and_assert_no_replies(self.pg0, p_frag * 65,
|
|
"frag offset")
|
|
|
|
#
|
|
# TTL expired packet
|
|
#
|
|
p_ttl = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4,
|
|
dst=self.pg1.remote_ip4,
|
|
ttl=1) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 100))
|
|
|
|
rx = self.send_and_expect(self.pg0, p_ttl * 65, self.pg0)
|
|
|
|
rx = rx[0]
|
|
icmp = rx[ICMP]
|
|
|
|
self.assertEqual(icmptypes[icmp.type], "time-exceeded")
|
|
self.assertEqual(icmpcodes[icmp.type][icmp.code],
|
|
"ttl-zero-during-transit")
|
|
self.assertEqual(icmp.src, self.pg0.remote_ip4)
|
|
self.assertEqual(icmp.dst, self.pg1.remote_ip4)
|
|
|
|
#
|
|
# MTU exceeded
|
|
#
|
|
p_mtu = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src=self.pg0.remote_ip4,
|
|
dst=self.pg1.remote_ip4,
|
|
ttl=10, flags='DF') /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 2000))
|
|
|
|
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1500, 0, 0, 0])
|
|
|
|
rx = self.send_and_expect(self.pg0, p_mtu * 65, self.pg0)
|
|
rx = rx[0]
|
|
icmp = rx[ICMP]
|
|
|
|
self.assertEqual(icmptypes[icmp.type], "dest-unreach")
|
|
self.assertEqual(icmpcodes[icmp.type][icmp.code],
|
|
"fragmentation-needed")
|
|
self.assertEqual(icmp.src, self.pg0.remote_ip4)
|
|
self.assertEqual(icmp.dst, self.pg1.remote_ip4)
|
|
|
|
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [2500, 0, 0, 0])
|
|
rx = self.send_and_expect(self.pg0, p_mtu * 65, self.pg1)
|
|
|
|
# Reset MTU for subsequent tests
|
|
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
|
|
|
|
#
|
|
# source address 0.0.0.0 and 25.255.255.255 and for-us
|
|
#
|
|
p_s0 = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src="0.0.0.0",
|
|
dst=self.pg0.local_ip4) /
|
|
ICMP(id=4, seq=4) /
|
|
Raw(load='\x0a' * 18))
|
|
rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
|
|
|
|
p_s0 = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src="255.255.255.255",
|
|
dst=self.pg0.local_ip4) /
|
|
ICMP(id=4, seq=4) /
|
|
Raw(load='\x0a' * 18))
|
|
rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
|
|
|
|
|
|
class TestIPDirectedBroadcast(VppTestCase):
|
|
""" IPv4 Directed Broadcast """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPDirectedBroadcast, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPDirectedBroadcast, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPDirectedBroadcast, self).setUp()
|
|
|
|
self.create_pg_interfaces(range(2))
|
|
|
|
for i in self.pg_interfaces:
|
|
i.admin_up()
|
|
|
|
def tearDown(self):
|
|
super(TestIPDirectedBroadcast, self).tearDown()
|
|
for i in self.pg_interfaces:
|
|
i.admin_down()
|
|
|
|
def test_ip_input(self):
|
|
""" IP Directed Broadcast """
|
|
|
|
#
|
|
# set the directed broadcast on pg0 first, then config IP4 addresses
|
|
# for pg1 directed broadcast is always disabled
|
|
self.vapi.sw_interface_set_ip_directed_broadcast(
|
|
self.pg0.sw_if_index, 1)
|
|
|
|
p0 = (Ether(src=self.pg1.remote_mac,
|
|
dst=self.pg1.local_mac) /
|
|
IP(src="1.1.1.1",
|
|
dst=self.pg0._local_ip4_bcast) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 2000))
|
|
p1 = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src="1.1.1.1",
|
|
dst=self.pg1._local_ip4_bcast) /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 2000))
|
|
|
|
self.pg0.config_ip4()
|
|
self.pg0.resolve_arp()
|
|
self.pg1.config_ip4()
|
|
self.pg1.resolve_arp()
|
|
|
|
#
|
|
# test packet is L2 broadcast
|
|
#
|
|
rx = self.send_and_expect(self.pg1, p0 * 65, self.pg0)
|
|
self.assertTrue(rx[0][Ether].dst, "ff:ff:ff:ff:ff:ff")
|
|
|
|
self.send_and_assert_no_replies(self.pg0, p1 * 65,
|
|
"directed broadcast disabled")
|
|
|
|
#
|
|
# toggle directed broadcast on pg0
|
|
#
|
|
self.vapi.sw_interface_set_ip_directed_broadcast(
|
|
self.pg0.sw_if_index, 0)
|
|
self.send_and_assert_no_replies(self.pg1, p0 * 65,
|
|
"directed broadcast disabled")
|
|
|
|
self.vapi.sw_interface_set_ip_directed_broadcast(
|
|
self.pg0.sw_if_index, 1)
|
|
rx = self.send_and_expect(self.pg1, p0 * 65, self.pg0)
|
|
|
|
self.pg0.unconfig_ip4()
|
|
self.pg1.unconfig_ip4()
|
|
|
|
|
|
class TestIPLPM(VppTestCase):
|
|
""" IPv4 longest Prefix Match """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPLPM, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPLPM, cls).tearDownClass()
|
|
|
|
def setUp(self):
|
|
super(TestIPLPM, self).setUp()
|
|
|
|
self.create_pg_interfaces(range(4))
|
|
|
|
for i in self.pg_interfaces:
|
|
i.admin_up()
|
|
i.config_ip4()
|
|
i.resolve_arp()
|
|
|
|
def tearDown(self):
|
|
super(TestIPLPM, self).tearDown()
|
|
for i in self.pg_interfaces:
|
|
i.admin_down()
|
|
i.unconfig_ip4()
|
|
|
|
def test_ip_lpm(self):
|
|
""" IP longest Prefix Match """
|
|
|
|
s_24 = VppIpRoute(self, "10.1.2.0", 24,
|
|
[VppRoutePath(self.pg1.remote_ip4,
|
|
self.pg1.sw_if_index)])
|
|
s_24.add_vpp_config()
|
|
s_8 = VppIpRoute(self, "10.0.0.0", 8,
|
|
[VppRoutePath(self.pg2.remote_ip4,
|
|
self.pg2.sw_if_index)])
|
|
s_8.add_vpp_config()
|
|
|
|
p_8 = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src="1.1.1.1",
|
|
dst="10.1.1.1") /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 2000))
|
|
p_24 = (Ether(src=self.pg0.remote_mac,
|
|
dst=self.pg0.local_mac) /
|
|
IP(src="1.1.1.1",
|
|
dst="10.1.2.1") /
|
|
UDP(sport=1234, dport=1234) /
|
|
Raw('\xa5' * 2000))
|
|
|
|
self.logger.info(self.vapi.cli("sh ip fib mtrie"))
|
|
rx = self.send_and_expect(self.pg0, p_8 * 65, self.pg2)
|
|
rx = self.send_and_expect(self.pg0, p_24 * 65, self.pg1)
|
|
|
|
|
|
class TestIPv4Frag(VppTestCase):
|
|
""" IPv4 fragmentation """
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestIPv4Frag, cls).setUpClass()
|
|
|
|
cls.create_pg_interfaces([0, 1])
|
|
cls.src_if = cls.pg0
|
|
cls.dst_if = cls.pg1
|
|
|
|
# setup all interfaces
|
|
for i in cls.pg_interfaces:
|
|
i.admin_up()
|
|
i.config_ip4()
|
|
i.resolve_arp()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
super(TestIPv4Frag, cls).tearDownClass()
|
|
|
|
def test_frag_large_packets(self):
|
|
""" Fragmentation of large packets """
|
|
|
|
p = (Ether(dst=self.src_if.local_mac, src=self.src_if.remote_mac) /
|
|
IP(src=self.src_if.remote_ip4, dst=self.dst_if.remote_ip4) /
|
|
UDP(sport=1234, dport=5678) / Raw())
|
|
self.extend_packet(p, 6000, "abcde")
|
|
saved_payload = p[Raw].load
|
|
|
|
# Force fragmentation by setting MTU of output interface
|
|
# lower than packet size
|
|
self.vapi.sw_interface_set_mtu(self.dst_if.sw_if_index,
|
|
[5000, 0, 0, 0])
|
|
|
|
self.pg_enable_capture()
|
|
self.src_if.add_stream(p)
|
|
self.pg_start()
|
|
|
|
# Expecting 3 fragments because size of created fragments currently
|
|
# cannot be larger then VPP buffer size (which is 2048)
|
|
packets = self.dst_if.get_capture(3)
|
|
|
|
# Assume VPP sends the fragments in order
|
|
payload = ''
|
|
for p in packets:
|
|
payload_offset = p.frag * 8
|
|
if payload_offset > 0:
|
|
payload_offset -= 8 # UDP header is not in payload
|
|
self.assert_equal(payload_offset, len(payload))
|
|
payload += p[Raw].load
|
|
self.assert_equal(payload, saved_payload, "payload")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main(testRunner=VppTestRunner)
|