vpp/test/test_pppoe.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

650 lines
19 KiB
Python

#!/usr/bin/env python3
import socket
import unittest
from scapy.packet import Raw
from scapy.layers.l2 import Ether
from scapy.layers.ppp import PPPoE, PPPoED, PPP
from scapy.layers.inet import IP
from framework import VppTestCase
from asfframework import VppTestRunner
from vpp_ip_route import VppIpRoute, VppRoutePath
from vpp_pppoe_interface import VppPppoeInterface
from util import ppp
class TestPPPoE(VppTestCase):
"""PPPoE Test Case"""
@classmethod
def setUpClass(cls):
super(TestPPPoE, cls).setUpClass()
cls.session_id = 1
cls.dst_ip = "100.1.1.100"
cls.dst_ipn = socket.inet_pton(socket.AF_INET, cls.dst_ip)
@classmethod
def tearDownClass(cls):
super(TestPPPoE, cls).tearDownClass()
def setUp(self):
super(TestPPPoE, self).setUp()
# create 2 pg interfaces
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(TestPPPoE, self).tearDown()
for i in self.pg_interfaces:
i.unconfig_ip4()
i.admin_down()
def show_commands_at_teardown(self):
self.logger.info(self.vapi.cli("show int"))
self.logger.info(self.vapi.cli("show pppoe fib"))
self.logger.info(self.vapi.cli("show pppoe session"))
self.logger.info(self.vapi.cli("show ip fib"))
self.logger.info(self.vapi.cli("show trace"))
def create_stream_pppoe_discovery(self, src_if, dst_if, client_mac, count=1):
packets = []
for i in range(count):
# create packet info stored in the test case instance
info = self.create_packet_info(src_if, dst_if)
# convert the info into packet payload
payload = self.info_to_payload(info)
# create the packet itself
p = (
Ether(dst=src_if.local_mac, src=client_mac)
/ PPPoED(sessionid=0)
/ Raw(payload)
)
# store a copy of the packet in the packet info
info.data = p.copy()
# append the packet to the list
packets.append(p)
# return the created packet list
return packets
def create_stream_pppoe_lcp(self, src_if, dst_if, client_mac, session_id, count=1):
packets = []
for i in range(count):
# create packet info stored in the test case instance
info = self.create_packet_info(src_if, dst_if)
# convert the info into packet payload
payload = self.info_to_payload(info)
# create the packet itself
p = (
Ether(dst=src_if.local_mac, src=client_mac)
/ PPPoE(sessionid=session_id)
/ PPP(proto=0xC021)
/ Raw(payload)
)
# store a copy of the packet in the packet info
info.data = p.copy()
# append the packet to the list
packets.append(p)
# return the created packet list
return packets
def create_stream_pppoe_ip4(
self, src_if, dst_if, client_mac, session_id, client_ip, count=1
):
packets = []
for i in range(count):
# create packet info stored in the test case instance
info = self.create_packet_info(src_if, dst_if)
# convert the info into packet payload
payload = self.info_to_payload(info)
# create the packet itself
p = (
Ether(dst=src_if.local_mac, src=client_mac)
/ PPPoE(sessionid=session_id)
/ PPP(proto=0x0021)
/ IP(src=client_ip, dst=self.dst_ip)
/ Raw(payload)
)
# store a copy of the packet in the packet info
info.data = p.copy()
# append the packet to the list
packets.append(p)
# return the created packet list
return packets
def create_stream_ip4(self, src_if, dst_if, client_ip, dst_ip, count=1):
pkts = []
for i in range(count):
# create packet info stored in the test case instance
info = self.create_packet_info(src_if, dst_if)
# convert the info into packet payload
payload = self.info_to_payload(info)
# create the packet itself
p = (
Ether(dst=src_if.local_mac, src=src_if.remote_mac)
/ IP(src=dst_ip, dst=client_ip)
/ Raw(payload)
)
# store a copy of the packet in the packet info
info.data = p.copy()
# append the packet to the list
pkts.append(p)
# return the created packet list
return pkts
def verify_decapped_pppoe(self, src_if, capture, sent):
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
try:
tx = sent[i]
rx = capture[i]
tx_ip = tx[IP]
rx_ip = rx[IP]
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
except:
self.logger.error(ppp("Rx:", rx))
self.logger.error(ppp("Tx:", tx))
raise
def verify_encaped_pppoe(self, src_if, capture, sent, session_id):
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
try:
tx = sent[i]
rx = capture[i]
tx_ip = tx[IP]
rx_ip = rx[IP]
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
rx_pppoe = rx[PPPoE]
self.assertEqual(rx_pppoe.sessionid, session_id)
except:
self.logger.error(ppp("Rx:", rx))
self.logger.error(ppp("Tx:", tx))
raise
def test_PPPoE_Decap(self):
"""PPPoE Decap Test"""
self.vapi.cli("clear trace")
#
# Add a route that resolves the server's destination
#
route_sever_dst = VppIpRoute(
self,
"100.1.1.100",
32,
[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
)
route_sever_dst.add_vpp_config()
# Send PPPoE Discovery
tx0 = self.create_stream_pppoe_discovery(
self.pg0, self.pg1, self.pg0.remote_mac
)
self.pg0.add_stream(tx0)
self.pg_start()
# Send PPPoE PPP LCP
tx1 = self.create_stream_pppoe_lcp(
self.pg0, self.pg1, self.pg0.remote_mac, self.session_id
)
self.pg0.add_stream(tx1)
self.pg_start()
# Create PPPoE session
pppoe_if = VppPppoeInterface(
self, self.pg0.remote_ip4, self.pg0.remote_mac, self.session_id
)
pppoe_if.add_vpp_config()
pppoe_if.set_unnumbered(self.pg0.sw_if_index)
#
# Send tunneled packets that match the created tunnel and
# are decapped and forwarded
#
tx2 = self.create_stream_pppoe_ip4(
self.pg0,
self.pg1,
self.pg0.remote_mac,
self.session_id,
self.pg0.remote_ip4,
)
self.pg0.add_stream(tx2)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx2 = self.pg1.get_capture(len(tx2))
self.verify_decapped_pppoe(self.pg0, rx2, tx2)
self.logger.info(self.vapi.cli("show pppoe fib"))
self.logger.info(self.vapi.cli("show pppoe session"))
self.logger.info(self.vapi.cli("show ip fib"))
#
# test case cleanup
#
# Delete PPPoE session
pppoe_if.remove_vpp_config()
# Delete a route that resolves the server's destination
route_sever_dst.remove_vpp_config()
def test_PPPoE_Encap(self):
"""PPPoE Encap Test"""
self.vapi.cli("clear trace")
#
# Add a route that resolves the server's destination
#
route_sever_dst = VppIpRoute(
self,
"100.1.1.100",
32,
[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
)
route_sever_dst.add_vpp_config()
# Send PPPoE Discovery
tx0 = self.create_stream_pppoe_discovery(
self.pg0, self.pg1, self.pg0.remote_mac
)
self.pg0.add_stream(tx0)
self.pg_start()
# Send PPPoE PPP LCP
tx1 = self.create_stream_pppoe_lcp(
self.pg0, self.pg1, self.pg0.remote_mac, self.session_id
)
self.pg0.add_stream(tx1)
self.pg_start()
# Create PPPoE session
pppoe_if = VppPppoeInterface(
self, self.pg0.remote_ip4, self.pg0.remote_mac, self.session_id
)
pppoe_if.add_vpp_config()
pppoe_if.set_unnumbered(self.pg0.sw_if_index)
#
# Send a packet stream that is routed into the session
# - packets are PPPoE encapped
#
self.vapi.cli("clear trace")
tx2 = self.create_stream_ip4(
self.pg1, self.pg0, self.pg0.remote_ip4, self.dst_ip, 65
)
self.pg1.add_stream(tx2)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx2 = self.pg0.get_capture(len(tx2))
self.verify_encaped_pppoe(self.pg1, rx2, tx2, self.session_id)
self.logger.info(self.vapi.cli("show pppoe fib"))
self.logger.info(self.vapi.cli("show pppoe session"))
self.logger.info(self.vapi.cli("show ip fib"))
self.logger.info(self.vapi.cli("show adj"))
#
# test case cleanup
#
# Delete PPPoE session
pppoe_if.remove_vpp_config()
# Delete a route that resolves the server's destination
route_sever_dst.remove_vpp_config()
def test_PPPoE_Add_Twice(self):
"""PPPoE Add Same Session Twice Test"""
self.vapi.cli("clear trace")
#
# Add a route that resolves the server's destination
#
route_sever_dst = VppIpRoute(
self,
"100.1.1.100",
32,
[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
)
route_sever_dst.add_vpp_config()
# Send PPPoE Discovery
tx0 = self.create_stream_pppoe_discovery(
self.pg0, self.pg1, self.pg0.remote_mac
)
self.pg0.add_stream(tx0)
self.pg_start()
# Send PPPoE PPP LCP
tx1 = self.create_stream_pppoe_lcp(
self.pg0, self.pg1, self.pg0.remote_mac, self.session_id
)
self.pg0.add_stream(tx1)
self.pg_start()
# Create PPPoE session
pppoe_if = VppPppoeInterface(
self, self.pg0.remote_ip4, self.pg0.remote_mac, self.session_id
)
pppoe_if.add_vpp_config()
pppoe_if.set_unnumbered(self.pg0.sw_if_index)
#
# The double create (create the same session twice) should fail,
# and we should still be able to use the original
#
try:
pppoe_if.add_vpp_config()
except Exception:
pass
else:
self.fail("Double GRE tunnel add does not fail")
#
# test case cleanup
#
# Delete PPPoE session
pppoe_if.remove_vpp_config()
# Delete a route that resolves the server's destination
route_sever_dst.remove_vpp_config()
def test_PPPoE_Del_Twice(self):
"""PPPoE Delete Same Session Twice Test"""
self.vapi.cli("clear trace")
#
# Add a route that resolves the server's destination
#
route_sever_dst = VppIpRoute(
self,
"100.1.1.100",
32,
[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
)
route_sever_dst.add_vpp_config()
# Send PPPoE Discovery
tx0 = self.create_stream_pppoe_discovery(
self.pg0, self.pg1, self.pg0.remote_mac
)
self.pg0.add_stream(tx0)
self.pg_start()
# Send PPPoE PPP LCP
tx1 = self.create_stream_pppoe_lcp(
self.pg0, self.pg1, self.pg0.remote_mac, self.session_id
)
self.pg0.add_stream(tx1)
self.pg_start()
# Create PPPoE session
pppoe_if = VppPppoeInterface(
self, self.pg0.remote_ip4, self.pg0.remote_mac, self.session_id
)
pppoe_if.add_vpp_config()
# Delete PPPoE session
pppoe_if.remove_vpp_config()
#
# The double del (del the same session twice) should fail,
# and we should still be able to use the original
#
try:
pppoe_if.remove_vpp_config()
except Exception:
pass
else:
self.fail("Double GRE tunnel del does not fail")
#
# test case cleanup
#
# Delete a route that resolves the server's destination
route_sever_dst.remove_vpp_config()
def test_PPPoE_Decap_Multiple(self):
"""PPPoE Decap Multiple Sessions Test"""
self.vapi.cli("clear trace")
#
# Add a route that resolves the server's destination
#
route_sever_dst = VppIpRoute(
self,
"100.1.1.100",
32,
[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
)
route_sever_dst.add_vpp_config()
# Send PPPoE Discovery 1
tx0 = self.create_stream_pppoe_discovery(
self.pg0, self.pg1, self.pg0.remote_mac
)
self.pg0.add_stream(tx0)
self.pg_start()
# Send PPPoE PPP LCP 1
tx1 = self.create_stream_pppoe_lcp(
self.pg0, self.pg1, self.pg0.remote_mac, self.session_id
)
self.pg0.add_stream(tx1)
self.pg_start()
# Create PPPoE session 1
pppoe_if1 = VppPppoeInterface(
self, self.pg0.remote_ip4, self.pg0.remote_mac, self.session_id
)
pppoe_if1.add_vpp_config()
pppoe_if1.set_unnumbered(self.pg0.sw_if_index)
# Send PPPoE Discovery 2
tx3 = self.create_stream_pppoe_discovery(
self.pg2, self.pg1, self.pg2.remote_mac
)
self.pg2.add_stream(tx3)
self.pg_start()
# Send PPPoE PPP LCP 2
tx4 = self.create_stream_pppoe_lcp(
self.pg2, self.pg1, self.pg2.remote_mac, self.session_id + 1
)
self.pg2.add_stream(tx4)
self.pg_start()
# Create PPPoE session 2
pppoe_if2 = VppPppoeInterface(
self, self.pg2.remote_ip4, self.pg2.remote_mac, self.session_id + 1
)
pppoe_if2.add_vpp_config()
pppoe_if2.set_unnumbered(self.pg0.sw_if_index)
#
# Send tunneled packets that match the created tunnel and
# are decapped and forwarded
#
tx2 = self.create_stream_pppoe_ip4(
self.pg0,
self.pg1,
self.pg0.remote_mac,
self.session_id,
self.pg0.remote_ip4,
)
self.pg0.add_stream(tx2)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx2 = self.pg1.get_capture(len(tx2))
self.verify_decapped_pppoe(self.pg0, rx2, tx2)
tx5 = self.create_stream_pppoe_ip4(
self.pg2,
self.pg1,
self.pg2.remote_mac,
self.session_id + 1,
self.pg2.remote_ip4,
)
self.pg2.add_stream(tx5)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx5 = self.pg1.get_capture(len(tx5))
self.verify_decapped_pppoe(self.pg2, rx5, tx5)
self.logger.info(self.vapi.cli("show pppoe fib"))
self.logger.info(self.vapi.cli("show pppoe session"))
self.logger.info(self.vapi.cli("show ip fib"))
#
# test case cleanup
#
# Delete PPPoE session
pppoe_if1.remove_vpp_config()
pppoe_if2.remove_vpp_config()
# Delete a route that resolves the server's destination
route_sever_dst.remove_vpp_config()
def test_PPPoE_Encap_Multiple(self):
"""PPPoE Encap Multiple Sessions Test"""
self.vapi.cli("clear trace")
#
# Add a route that resolves the server's destination
#
route_sever_dst = VppIpRoute(
self,
"100.1.1.100",
32,
[VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)],
)
route_sever_dst.add_vpp_config()
# Send PPPoE Discovery 1
tx0 = self.create_stream_pppoe_discovery(
self.pg0, self.pg1, self.pg0.remote_mac
)
self.pg0.add_stream(tx0)
self.pg_start()
# Send PPPoE PPP LCP 1
tx1 = self.create_stream_pppoe_lcp(
self.pg0, self.pg1, self.pg0.remote_mac, self.session_id
)
self.pg0.add_stream(tx1)
self.pg_start()
# Create PPPoE session 1
pppoe_if1 = VppPppoeInterface(
self, self.pg0.remote_ip4, self.pg0.remote_mac, self.session_id
)
pppoe_if1.add_vpp_config()
# Send PPPoE Discovery 2
tx3 = self.create_stream_pppoe_discovery(
self.pg2, self.pg1, self.pg2.remote_mac
)
self.pg2.add_stream(tx3)
self.pg_start()
# Send PPPoE PPP LCP 2
tx4 = self.create_stream_pppoe_lcp(
self.pg2, self.pg1, self.pg2.remote_mac, self.session_id + 1
)
self.pg2.add_stream(tx4)
self.pg_start()
# Create PPPoE session 2
pppoe_if2 = VppPppoeInterface(
self, self.pg2.remote_ip4, self.pg2.remote_mac, self.session_id + 1
)
pppoe_if2.add_vpp_config()
#
# Send a packet stream that is routed into the session
# - packets are PPPoE encapped
#
self.vapi.cli("clear trace")
tx2 = self.create_stream_ip4(
self.pg1, self.pg0, self.pg0.remote_ip4, self.dst_ip
)
self.pg1.add_stream(tx2)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx2 = self.pg0.get_capture(len(tx2))
self.verify_encaped_pppoe(self.pg1, rx2, tx2, self.session_id)
tx5 = self.create_stream_ip4(
self.pg1, self.pg2, self.pg2.remote_ip4, self.dst_ip
)
self.pg1.add_stream(tx5)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx5 = self.pg2.get_capture(len(tx5))
self.verify_encaped_pppoe(self.pg1, rx5, tx5, self.session_id + 1)
self.logger.info(self.vapi.cli("show pppoe fib"))
self.logger.info(self.vapi.cli("show pppoe session"))
self.logger.info(self.vapi.cli("show ip fib"))
#
# test case cleanup
#
# Delete PPPoE session
pppoe_if1.remove_vpp_config()
pppoe_if2.remove_vpp_config()
# Delete a route that resolves the server's destination
route_sever_dst.remove_vpp_config()
if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)