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#!/usr/bin/env python3
import unittest
from framework import VppTestCase
from asfframework import VppTestRunner, tag_fixme_vpp_workers
from ipaddress import IPv4Network, IPv6Network
from vpp_ip_route import (
VppIpRoute,
VppRoutePath,
VppIpTable,
)
from vpp_papi import VppEnum
from vpp_session_sdl import VppSessionSdl
from vpp_session_sdl import SessionSdl
@tag_fixme_vpp_workers
class TestSessionSDL(VppTestCase):
"""Session SDL Test Case"""
@classmethod
def setUpClass(cls):
super(TestSessionSDL, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestSessionSDL, cls).tearDownClass()
def setUp(self):
super(TestSessionSDL, self).setUp()
self.create_loopback_interfaces(2)
table_id = 0
for i in self.lo_interfaces:
i.admin_up()
if table_id != 0:
tbl = VppIpTable(self, table_id)
tbl.add_vpp_config()
tbl = VppIpTable(self, table_id, is_ip6=1)
tbl.add_vpp_config()
i.set_table_ip4(table_id)
i.set_table_ip6(table_id)
i.config_ip4()
i.config_ip6()
table_id += 1
def tearDown(self):
for i in self.lo_interfaces:
i.unconfig_ip4()
i.set_table_ip4(0)
i.unconfig_ip6()
i.set_table_ip6(0)
i.admin_down()
self.loop0.remove_vpp_config()
self.loop1.remove_vpp_config()
super(TestSessionSDL, self).tearDown()
def create_rule(self, rmt, action_index, tag):
return SessionSdl(rmt=rmt, action_index=action_index, tag=tag)
def apply_rules(self, rules, is_add, appns_index):
r = VppSessionSdl(self, rules, is_add=is_add, appns_index=appns_index)
r.add_vpp_config()
def test_session_sdl_ip4(self):
"""Session SDL IP4 test"""
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_SDL
)
# Configure namespaces
self.vapi.app_namespace_add_del_v4(
namespace_id="0", sw_if_index=self.loop0.sw_if_index
)
self.vapi.app_namespace_add_del_v4(
namespace_id="1", sw_if_index=self.loop1.sw_if_index
)
# Add inter-table routes
uri = "tcp://" + self.loop0.local_ip4 + "/1234"
server_cmd = "test echo server appns 0 fifo-size 4k " + "uri " + uri
client_cmd = (
"test echo client bytes 100000 appns 1 "
+ "fifo-size 4k "
+ "syn-timeout 2 uri "
+ uri
)
ip_t01 = VppIpRoute(
self,
self.loop1.local_ip4,
32,
[VppRoutePath("0.0.0.0", 0xFFFFFFFF, nh_table_id=1)],
)
ip_t10 = VppIpRoute(
self,
self.loop0.local_ip4,
32,
[VppRoutePath("0.0.0.0", 0xFFFFFFFF, nh_table_id=0)],
table_id=1,
)
ip_t01.add_vpp_config()
ip_t10.add_vpp_config()
# Start builtin server for ip4 on loop0 appns 0
self.logger.info(self.vapi.cli(server_cmd))
# Add session filter to block loop1 (client on loop1 appns 1)
rules = []
rules.append(
self.create_rule(rmt=self.loop1.local_ip4 + "/32", action_index=0, tag="")
)
self.apply_rules(rules, is_add=1, appns_index=0)
filter = self.vapi.session_sdl_v2_dump()
self.assertEqual(filter[0].rmt, IPv4Network(self.loop1.local_ip4 + "/32"))
# irrelevant rules - add 64k entries in one API call
rules = []
for i in range(255):
for j in range(255):
prefix = "10.1.{0}.{1}/32".format(i, j)
rules.append(self.create_rule(rmt=prefix, action_index=0, tag=""))
self.apply_rules(rules, is_add=1, appns_index=0)
error = self.vapi.cli_return_response(client_cmd)
# Expecting an error because loop1 is blocked
self.assertEqual(-1, error.retval)
# Remove the session filter
rules = []
rules.append(
self.create_rule(rmt=self.loop1.local_ip4 + "/32", action_index=0, tag="")
)
self.apply_rules(rules, is_add=0, appns_index=0)
# Not expecting an error
self.logger.info(self.vapi.cli(client_cmd))
# Add a session filter not matching loop1
rules = []
rules.append(self.create_rule(rmt="172.100.1.0/24", action_index=0, tag=""))
self.apply_rules(rules, is_add=1, appns_index=0)
# Not expecting an error
self.logger.info(self.vapi.cli(client_cmd))
self.logger.info(self.vapi.cli(server_cmd + " stop"))
self.vapi.app_namespace_add_del_v4(
is_add=0, namespace_id="0", sw_if_index=self.loop0.sw_if_index
)
self.vapi.app_namespace_add_del_v4(
is_add=0, namespace_id="1", sw_if_index=self.loop1.sw_if_index
)
# Delete inter-table routes
ip_t01.remove_vpp_config()
ip_t10.remove_vpp_config()
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_DISABLE
)
def test_session_sdl_ip6(self):
"""Session SDL IP6 test"""
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_SDL
)
# Configure namespaces
self.vapi.app_namespace_add_del_v4(
namespace_id="0", sw_if_index=self.loop0.sw_if_index
)
self.vapi.app_namespace_add_del_v4(
namespace_id="1", sw_if_index=self.loop1.sw_if_index
)
# IP6 Test
# Add inter-table routes
uri = "tcp://" + self.loop0.local_ip6 + "/1235"
client_cmd = (
"test echo client bytes 100000 appns 1 "
+ "fifo-size 4k "
+ "syn-timeout 2 uri "
+ uri
)
server_cmd = "test echo server appns 0 fifo-size 4k " + "uri " + uri
ip_t01 = VppIpRoute(
self,
self.loop1.local_ip6,
128,
[VppRoutePath("0::0", 0xFFFFFFFF, nh_table_id=1)],
)
ip_t10 = VppIpRoute(
self,
self.loop0.local_ip6,
128,
[VppRoutePath("0::0", 0xFFFFFFFF, nh_table_id=0)],
table_id=1,
)
ip_t01.add_vpp_config()
ip_t10.add_vpp_config()
# Start builtin server for ip6 on loop0 appns 0
self.logger.info(self.vapi.cli(server_cmd))
# case 1: No filter
# Not expecting an error
self.logger.info(self.vapi.cli(client_cmd))
# case 2: filter to block
# Add session filter to block loop1, client appns 1
rules = []
rules.append(
self.create_rule(rmt=self.loop1.local_ip6 + "/128", action_index=0, tag="")
)
self.apply_rules(rules, is_add=1, appns_index=0)
filter = self.vapi.session_sdl_v2_dump()
self.assertEqual(filter[0].rmt, IPv6Network(self.loop1.local_ip6 + "/128"))
error = self.vapi.cli_return_response(client_cmd)
# Expecting an error because loop1 is blocked
self.assertEqual(-1, error.retval)
# case 3: remove filter to unblock
rules = []
rules.append(
self.create_rule(rmt=self.loop1.local_ip6 + "/128", action_index=0, tag="")
)
self.apply_rules(rules, is_add=0, appns_index=0)
# Not expecting an error
self.logger.info(self.vapi.cli(client_cmd))
# stop the server
self.logger.info(self.vapi.cli(server_cmd + " stop"))
self.vapi.app_namespace_add_del_v4(
is_add=0, namespace_id="0", sw_if_index=self.loop0.sw_if_index
)
self.vapi.app_namespace_add_del_v4(
is_add=0, namespace_id="1", sw_if_index=self.loop1.sw_if_index
)
# Delete inter-table routes
ip_t01.remove_vpp_config()
ip_t10.remove_vpp_config()
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_DISABLE
)
def test_session_enable_disable(self):
"""Session SDL enable/disable test"""
for i in range(10):
# Enable sdl
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_SDL
)
# Disable
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_DISABLE
)
# Enable rule-table
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_RULE_TABLE
)
# Disable
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_DISABLE
)
# Enable sdl
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_SDL
)
# Disable
self.vapi.session_enable_disable_v2(
rt_engine_type=VppEnum.vl_api_rt_backend_engine_t.RT_BACKEND_ENGINE_API_DISABLE
)
if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
|
