vpp/test/vpp_interface.py
Dave Wallace 8800f732f8 tests: refactor asf framework code
- Make framework.py classes a subset of asfframework.py classes
- Remove all packet related code from asfframework.py
- Add test class and test case set up debug output to log
- Repatriate packet tests from asf to test directory
- Remove non-packet related code from framework.py and
  inherit them from asfframework.py classes
- Clean up unused import variables
- Re-enable BFD tests on Ubuntu 22.04 and fix
  intermittent test failures in echo_looped_back
  testcases (where # control packets verified but
  not guaranteed to be received during test)
- Re-enable Wireguard tests on Ubuntu 22.04 and fix
  intermittent test failures in handshake ratelimiting
  testcases and event testcase
- Run Wiregard testcase suites solo
- Improve debug output in log.txt
- Increase VCL/LDP post sleep timeout to allow iperf server
  to finish cleanly.
- Fix pcap history files to be sorted by suite and testcase
  and ensure order/timestamp is correct based on creation
  in the testcase.
- Decode pcap files for each suite and testcase for all
  errors or if configured via comandline option / env var
- Improve vpp corefile detection to allow complete corefile
  generation
- Disable vm vpp interfaces testcases on debian11
- Clean up failed unittest dir when retrying failed testcases
  and unify testname directory and failed linknames into
  framwork functions

Type: test

Change-Id: I0764f79ea5bb639d278bf635ed2408d4d5220e1e
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2023-11-03 05:06:43 +00:00

497 lines
16 KiB
Python

import socket
import abc
import reprlib
from util import Host, mk_ll_addr
from vpp_papi import VppEnum
from ipaddress import IPv4Network
try:
text_type = unicode
except NameError:
text_type = str
class VppInterface(metaclass=abc.ABCMeta):
"""Generic VPP interface."""
@property
def sw_if_index(self):
"""Interface index assigned by VPP."""
return self._sw_if_index
@property
def remote_mac(self):
"""MAC-address of the remote interface "connected" to this interface"""
return self._remote_hosts[0].mac
@property
def local_mac(self):
"""MAC-address of the VPP interface."""
return str(self._local_mac)
@property
def local_addr(self):
return self._local_addr
@property
def remote_addr(self):
return self._remote_addr
@property
def local_ip4(self):
"""Local IPv4 address on VPP interface (string)."""
return self._local_ip4
@local_ip4.setter
def local_ip4(self, value):
self._local_ip4 = value
@property
def local_ip4_prefix_len(self):
"""Local IPv4 prefix length"""
return self._local_ip4_len
@local_ip4_prefix_len.setter
def local_ip4_prefix_len(self, value):
self._local_ip4_len = value
@property
def local_ip4_prefix(self):
"""Local IPv4 prefix"""
return "%s/%d" % (self._local_ip4, self._local_ip4_len)
@property
def remote_ip4(self):
"""IPv4 address of remote peer "connected" to this interface."""
return self._remote_hosts[0].ip4
@property
def local_ip6(self):
"""Local IPv6 address on VPP interface (string)."""
return self._local_ip6
@local_ip6.setter
def local_ip6(self, value):
self._local_ip6 = value
@property
def local_ip6_prefix_len(self):
"""Local IPv6 prefix length"""
return self._local_ip6_len
@local_ip6_prefix_len.setter
def local_ip6_prefix_len(self, value):
self._local_ip6_len = value
@property
def local_ip6_prefix(self):
"""Local IPv4 prefix"""
return "%s/%d" % (self._local_ip6, self._local_ip6_len)
@property
def remote_ip6(self):
"""IPv6 address of remote peer "connected" to this interface."""
return self._remote_hosts[0].ip6
@property
def local_ip6_ll(self):
"""Local IPv6 link-local address on VPP interface (string)."""
if not self._local_ip6_ll:
self._local_ip6_ll = str(
self.test.vapi.sw_interface_ip6_get_link_local_address(
self.sw_if_index
).ip
)
return self._local_ip6_ll
@property
def remote_ip6_ll(self):
"""Link-local IPv6 address of remote peer
"connected" to this interface."""
return self._remote_ip6_ll
@property
def name(self):
"""Name of the interface."""
return self._name
@property
def dump(self):
"""RAW result of sw_interface_dump for this interface."""
return self._dump
@property
def test(self):
"""Test case creating this interface."""
return self._test
@property
def remote_hosts(self):
"""Remote hosts list"""
return self._remote_hosts
@remote_hosts.setter
def remote_hosts(self, value):
"""
:param list value: List of remote hosts.
"""
self._remote_hosts = value
self._hosts_by_mac = {}
self._hosts_by_ip4 = {}
self._hosts_by_ip6 = {}
for host in self._remote_hosts:
self._hosts_by_mac[host.mac] = host
self._hosts_by_ip4[host.ip4] = host
self._hosts_by_ip6[host.ip6] = host
def host_by_mac(self, mac):
"""
:param mac: MAC address to find host by.
:return: Host object assigned to interface.
"""
return self._hosts_by_mac[mac]
def host_by_ip4(self, ip):
"""
:param ip: IPv4 address to find host by.
:return: Host object assigned to interface.
"""
return self._hosts_by_ip4[ip]
def host_by_ip6(self, ip):
"""
:param ip: IPv6 address to find host by.
:return: Host object assigned to interface.
"""
return self._hosts_by_ip6[ip]
def generate_remote_hosts(self, count=1):
"""Generate and add remote hosts for the interface.
:param int count: Number of generated remote hosts.
"""
self._remote_hosts = []
self._hosts_by_mac = {}
self._hosts_by_ip4 = {}
self._hosts_by_ip6 = {}
for i in range(2, count + 2): # 0: network address, 1: local vpp address
mac = "02:%02x:00:00:ff:%02x" % (self.sw_if_index, i)
ip4 = "172.16.%u.%u" % (self.sw_if_index, i)
ip6 = "fd01:%x::%x" % (self.sw_if_index, i)
ip6_ll = mk_ll_addr(mac)
host = Host(mac, ip4, ip6, ip6_ll)
self._remote_hosts.append(host)
self._hosts_by_mac[mac] = host
self._hosts_by_ip4[ip4] = host
self._hosts_by_ip6[ip6] = host
@abc.abstractmethod
def __init__(self, test):
self._test = test
self._remote_hosts = []
self._hosts_by_mac = {}
self._hosts_by_ip4 = {}
self._hosts_by_ip6 = {}
def set_mac(self, mac):
self._local_mac = str(mac)
self.test.vapi.sw_interface_set_mac_address(self.sw_if_index, mac.packed)
return self
def set_sw_if_index(self, sw_if_index):
if sw_if_index > 255:
raise RuntimeError("Don't support sw_if_index values greater than 255.")
self._sw_if_index = sw_if_index
self.generate_remote_hosts()
self._local_ip4 = "172.16.%u.1" % self.sw_if_index
self._local_ip4_len = 24
self._local_ip4_subnet = "172.16.%u.0" % self.sw_if_index
self._local_ip4_bcast = "172.16.%u.255" % self.sw_if_index
self.has_ip4_config = False
self.ip4_table_id = 0
self._local_ip6 = "fd01:%x::1" % self.sw_if_index
self._local_ip6_len = 64
self.has_ip6_config = False
self.ip6_table_id = 0
self._local_addr = {
socket.AF_INET: self.local_ip4,
socket.AF_INET6: self.local_ip6,
}
self._remote_addr = {
socket.AF_INET: self.remote_ip4,
socket.AF_INET6: self.remote_ip6,
}
r = self.test.vapi.sw_interface_dump(sw_if_index=self.sw_if_index)
for intf in r:
if intf.sw_if_index == self.sw_if_index:
self._name = intf.interface_name
self._local_mac = intf.l2_address
self._dump = intf
break
else:
raise Exception(
"Could not find interface with sw_if_index %d "
"in interface dump %s" % (self.sw_if_index, reprlib.repr(r))
)
self._remote_ip6_ll = mk_ll_addr(self.remote_mac)
self._local_ip6_ll = None
def config_ip4(self):
"""Configure IPv4 address on the VPP interface."""
self.test.vapi.sw_interface_add_del_address(
sw_if_index=self.sw_if_index, prefix=self.local_ip4_prefix
)
self.has_ip4_config = True
return self
def unconfig_ip4(self):
"""Remove IPv4 address on the VPP interface."""
try:
if self.has_ip4_config:
self.test.vapi.sw_interface_add_del_address(
sw_if_index=self.sw_if_index, prefix=self.local_ip4_prefix, is_add=0
)
except AttributeError:
self.has_ip4_config = False
self.has_ip4_config = False
return self
def configure_ipv4_neighbors(self):
"""For every remote host assign neighbor's MAC to IPv4 addresses.
:param vrf_id: The FIB table / VRF ID. (Default value = 0)
"""
for host in self._remote_hosts:
self.test.vapi.ip_neighbor_add_del(self.sw_if_index, host.mac, host.ip4)
return self
def config_ip6(self):
"""Configure IPv6 address on the VPP interface."""
self.test.vapi.sw_interface_add_del_address(
sw_if_index=self.sw_if_index, prefix=self.local_ip6_prefix
)
self.has_ip6_config = True
return self
def unconfig_ip6(self):
"""Remove IPv6 address on the VPP interface."""
try:
if self.has_ip6_config:
self.test.vapi.sw_interface_add_del_address(
sw_if_index=self.sw_if_index, prefix=self.local_ip6_prefix, is_add=0
)
except AttributeError:
self.has_ip6_config = False
self.has_ip6_config = False
return self
def configure_ipv6_neighbors(self):
"""For every remote host assign neighbor's MAC to IPv6 addresses.
:param vrf_id: The FIB table / VRF ID. (Default value = 0)
"""
for host in self._remote_hosts:
self.test.vapi.ip_neighbor_add_del(self.sw_if_index, host.mac, host.ip6)
def unconfig(self):
"""Unconfigure IPv6 and IPv4 address on the VPP interface."""
self.unconfig_ip4()
self.unconfig_ip6()
return self
def set_table_ip4(self, table_id):
"""Set the interface in a IPv4 Table.
.. note:: Must be called before configuring IP4 addresses.
"""
self.ip4_table_id = table_id
self.test.vapi.sw_interface_set_table(self.sw_if_index, 0, self.ip4_table_id)
return self
def set_table_ip6(self, table_id):
"""Set the interface in a IPv6 Table.
.. note:: Must be called before configuring IP6 addresses.
"""
self.ip6_table_id = table_id
self.test.vapi.sw_interface_set_table(self.sw_if_index, 1, self.ip6_table_id)
return self
def disable_ipv6_ra(self):
"""Configure IPv6 RA suppress on the VPP interface."""
self.test.vapi.sw_interface_ip6nd_ra_config(
sw_if_index=self.sw_if_index, suppress=1
)
return self
def ip6_ra_config(self, no=0, suppress=0, send_unicast=0):
"""Configure IPv6 RA suppress on the VPP interface."""
self.test.vapi.sw_interface_ip6nd_ra_config(
sw_if_index=self.sw_if_index,
is_no=no,
suppress=suppress,
send_unicast=send_unicast,
)
return self
def ip6_ra_prefix(
self, prefix, is_no=0, off_link=0, no_autoconfig=0, use_default=0
):
"""Configure IPv6 RA suppress on the VPP interface.
prefix can be a string in the format of '<address>/<length_in_bits>'
or ipaddress.ipnetwork object (if strict.)"""
self.test.vapi.sw_interface_ip6nd_ra_prefix(
sw_if_index=self.sw_if_index,
prefix=prefix,
use_default=use_default,
off_link=off_link,
no_autoconfig=no_autoconfig,
is_no=is_no,
)
return self
def admin_up(self):
"""Put interface ADMIN-UP."""
self.test.vapi.sw_interface_set_flags(
self.sw_if_index,
flags=VppEnum.vl_api_if_status_flags_t.IF_STATUS_API_FLAG_ADMIN_UP,
)
return self
def admin_down(self):
"""Put interface ADMIN-down."""
self.test.vapi.sw_interface_set_flags(self.sw_if_index, flags=0)
return self
def link_up(self):
"""Put interface link-state-UP."""
self.test.vapi.cli("test interface link-state %s up" % self.name)
def link_down(self):
"""Put interface link-state-down."""
self.test.vapi.cli("test interface link-state %s down" % self.name)
def ip6_enable(self):
"""IPv6 Enable interface"""
self.test.vapi.sw_interface_ip6_enable_disable(self.sw_if_index, enable=1)
return self
def ip6_disable(self):
"""Put interface ADMIN-DOWN."""
self.test.vapi.sw_interface_ip6_enable_disable(self.sw_if_index, enable=0)
return self
def add_sub_if(self, sub_if):
"""Register a sub-interface with this interface.
:param sub_if: sub-interface
"""
if not hasattr(self, "sub_if"):
self.sub_if = sub_if
else:
if isinstance(self.sub_if, list):
self.sub_if.append(sub_if)
else:
self.sub_if = sub_if
return self
def enable_mpls(self):
"""Enable MPLS on the VPP interface."""
self.test.vapi.sw_interface_set_mpls_enable(self.sw_if_index)
return self
def disable_mpls(self):
"""Enable MPLS on the VPP interface."""
self.test.vapi.sw_interface_set_mpls_enable(self.sw_if_index, 0)
return self
def is_ip4_entry_in_fib_dump(self, dump):
for i in dump:
n = IPv4Network(
text_type("%s/%d" % (self.local_ip4, self.local_ip4_prefix_len))
)
if i.route.prefix == n and i.route.table_id == self.ip4_table_id:
return True
return False
def set_unnumbered(self, ip_sw_if_index):
"""Set the interface to unnumbered via ip_sw_if_index"""
self.test.vapi.sw_interface_set_unnumbered(ip_sw_if_index, self.sw_if_index)
return self
def unset_unnumbered(self, ip_sw_if_index):
"""Unset the interface to unnumbered via ip_sw_if_index"""
self.test.vapi.sw_interface_set_unnumbered(
ip_sw_if_index, self.sw_if_index, is_add=0
)
return self
def set_proxy_arp(self, enable=1):
"""Set the interface to enable/disable Proxy ARP"""
self.test.vapi.proxy_arp_intfc_enable_disable(
sw_if_index=self.sw_if_index, enable=enable
)
return self
def query_vpp_config(self):
dump = self.test.vapi.sw_interface_dump(sw_if_index=self.sw_if_index)
return self.is_interface_config_in_dump(dump)
def get_interface_config_from_dump(self, dump):
for i in dump:
if (
i.interface_name.rstrip(" \t\r\n\0") == self.name
and i.sw_if_index == self.sw_if_index
):
return i
else:
return None
def is_interface_config_in_dump(self, dump):
return self.get_interface_config_from_dump(dump) is not None
def assert_interface_state(self, admin_up_down, link_up_down, expect_event=False):
if expect_event:
event = self.test.vapi.wait_for_event(timeout=1, name="sw_interface_event")
self.test.assert_equal(event.sw_if_index, self.sw_if_index, "sw_if_index")
self.test.assert_equal((event.flags & 1), admin_up_down, "admin state")
self.test.assert_equal((event.flags & 2), link_up_down, "link state")
dump = self.test.vapi.sw_interface_dump()
if_state = self.get_interface_config_from_dump(dump)
self.test.assert_equal((if_state.flags & 1), admin_up_down, "admin state")
self.test.assert_equal((if_state.flags & 2), link_up_down, "link state")
def __str__(self):
return self.name
def get_rx_stats(self):
return self.test.statistics["/if/rx"][:, self.sw_if_index].sum_packets()
def get_tx_stats(self):
return self.test.statistics["/if/tx"][:, self.sw_if_index].sum_packets()
def set_l3_mtu(self, mtu):
self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [mtu, 0, 0, 0])
return self
def set_ip4_mtu(self, mtu):
self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, mtu, 0, 0])
return self
def set_ip6_mtu(self, mtu):
self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, 0, mtu, 0])
return self
def set_mpls_mtu(self, mtu):
self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, 0, 0, mtu])
return self