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#!/usr/bin/env python3
import unittest
import pexpect
import time
import signal
from config import config
from framework import VppTestCase, VppTestRunner
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath
from scapy.layers.inet import IP, ICMP
from scapy.layers.l2 import Ether
from scapy.packet import Raw
@unittest.skipUnless(config.gcov, "part of code coverage tests")
class TestVlib(VppTestCase):
"""Vlib Unit Test Cases"""
vpp_worker_count = 1
@classmethod
def setUpClass(cls):
super(TestVlib, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestVlib, cls).tearDownClass()
def setUp(self):
super(TestVlib, self).setUp()
def tearDown(self):
super(TestVlib, self).tearDown()
def test_vlib_main_unittest(self):
"""Vlib main.c Code Coverage Test"""
cmds = [
"loopback create",
"packet-generator new {\n"
" name vlib\n"
" limit 15\n"
" size 128-128\n"
" interface loop0\n"
" node ethernet-input\n"
" data {\n"
" IP6: 00:d0:2d:5e:86:85 -> 00:0d:ea:d0:00:00\n"
" ICMP: db00::1 -> db00::2\n"
" incrementing 30\n"
" }\n"
"}\n",
"event-logger trace dispatch",
"event-logger stop",
"event-logger clear",
"event-logger resize 102400",
"event-logger restart",
"pcap dispatch trace on max 100 buffer-trace pg-input 15",
"pa en",
"show event-log 100 all",
"event-log save",
"event-log save foo",
"pcap dispatch trace",
"pcap dispatch trace status",
"pcap dispatch trace off",
"show vlib frame-allocation",
]
for cmd in cmds:
r = self.vapi.cli_return_response(cmd)
if r.retval != 0:
if hasattr(r, "reply"):
self.logger.info(cmd + " FAIL reply " + r.reply)
else:
self.logger.info(cmd + " FAIL retval " + str(r.retval))
def test_vlib_node_cli_unittest(self):
"""Vlib node_cli.c Code Coverage Test"""
cmds = [
"loopback create",
"packet-generator new {\n"
" name vlib\n"
" limit 15\n"
" size 128-128\n"
" interface loop0\n"
" node ethernet-input\n"
" data {\n"
" IP6: 00:d0:2d:5e:86:85 -> 00:0d:ea:d0:00:00\n"
" ICMP: db00::1 -> db00::2\n"
" incrementing 30\n"
" }\n"
"}\n",
"show vlib graph",
"show vlib graph ethernet-input",
"show vlib graphviz",
"show vlib graphviz graphviz.dot",
"pa en",
"show runtime ethernet-input",
"show runtime brief verbose max summary",
"clear runtime",
"show node index 1",
"show node ethernet-input",
"show node pg-input",
"set node function",
"set node function no-such-node",
"set node function cdp-input default",
"set node function ethernet-input default",
"set node function ethernet-input bozo",
"set node function ethernet-input",
"show \t",
]
for cmd in cmds:
r = self.vapi.cli_return_response(cmd)
if r.retval != 0:
if hasattr(r, "reply"):
self.logger.info(cmd + " FAIL reply " + r.reply)
else:
self.logger.info(cmd + " FAIL retval " + str(r.retval))
def test_vlib_buffer_c_unittest(self):
"""Vlib buffer.c Code Coverage Test"""
cmds = [
"loopback create",
"packet-generator new {\n"
" name vlib\n"
" limit 15\n"
" size 128-128\n"
" interface loop0\n"
" node ethernet-input\n"
" data {\n"
" IP6: 00:d0:2d:5e:86:85 -> 00:0d:ea:d0:00:00\n"
" ICMP: db00::1 -> db00::2\n"
" incrementing 30\n"
" }\n"
"}\n",
"event-logger trace",
"event-logger trace enable",
"event-logger trace api cli barrier",
"pa en",
"show interface bogus",
"event-logger trace disable api cli barrier",
"event-logger trace circuit-node ethernet-input",
"event-logger trace circuit-node ethernet-input disable",
"clear interfaces",
"test vlib",
"test vlib2",
"show memory api-segment stats-segment main-heap verbose",
"leak-check { show memory }",
"show cpu",
"memory-trace main-heap",
"memory-trace main-heap api-segment stats-segment",
"leak-check { show version }",
"show version ?",
"comment { show version }",
"uncomment { show version }",
"show memory main-heap",
"show memory bogus",
"choices",
"test heap-validate",
"memory-trace main-heap disable",
"show buffers",
"show eve",
"show help",
"show ip ",
]
for cmd in cmds:
r = self.vapi.cli_return_response(cmd)
if r.retval != 0:
if hasattr(r, "reply"):
self.logger.info(cmd + " FAIL reply " + r.reply)
else:
self.logger.info(cmd + " FAIL retval " + str(r.retval))
def test_vlib_format_unittest(self):
"""Vlib format.c Code Coverage Test"""
cmds = [
"loopback create",
"classify filter pcap mask l2 proto match l2 proto 0x86dd",
"classify filter pcap del",
"test format-vlib",
]
for cmd in cmds:
r = self.vapi.cli_return_response(cmd)
if r.retval != 0:
if hasattr(r, "reply"):
self.logger.info(cmd + " FAIL reply " + r.reply)
else:
self.logger.info(cmd + " FAIL retval " + str(r.retval))
def test_vlib_main_unittest(self):
"""Private Binary API Segment Test (takes 70 seconds)"""
vat_path = config.vpp + "_api_test"
vat = pexpect.spawn(vat_path, ["socket-name", self.get_api_sock_path()])
vat.expect("vat# ", timeout=10)
vat.sendline("sock_init_shm")
vat.expect("vat# ", timeout=10)
vat.sendline("sh api cli")
vat.kill(signal.SIGKILL)
vat.wait()
self.logger.info("vat terminated, 70 second wait for the Reaper")
time.sleep(70)
self.logger.info("Reaper should be complete...")
def test_pool(self):
"""Fixed-size Pool Test"""
cmds = [
"test pool",
]
for cmd in cmds:
r = self.vapi.cli_return_response(cmd)
if r.retval != 0:
if hasattr(r, "reply"):
self.logger.info(cmd + " FAIL reply " + r.reply)
else:
self.logger.info(cmd + " FAIL retval " + str(r.retval))
class TestVlibFrameLeak(VppTestCase):
"""Vlib Frame Leak Test Cases"""
vpp_worker_count = 1
@classmethod
def setUpClass(cls):
super(TestVlibFrameLeak, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestVlibFrameLeak, cls).tearDownClass()
def setUp(self):
super(TestVlibFrameLeak, self).setUp()
# create 1 pg interface
self.create_pg_interfaces(range(1))
for i in self.pg_interfaces:
i.admin_up()
i.config_ip4()
i.resolve_arp()
def tearDown(self):
super(TestVlibFrameLeak, self).tearDown()
for i in self.pg_interfaces:
i.unconfig_ip4()
i.admin_down()
def test_vlib_mw_refork_frame_leak(self):
"""Vlib worker thread refork leak test case"""
icmp_id = 0xB
icmp_seq = 5
icmp_load = b"\x0a" * 18
pkt = (
Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
/ IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4)
/ ICMP(id=icmp_id, seq=icmp_seq)
/ Raw(load=icmp_load)
)
# Send a packet
self.pg0.add_stream(pkt)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture(1)
self.assertEquals(len(rx), 1)
rx = rx[0]
ether = rx[Ether]
ipv4 = rx[IP]
self.assertEqual(ether.src, self.pg0.local_mac)
self.assertEqual(ether.dst, self.pg0.remote_mac)
self.assertEqual(ipv4.src, self.pg0.local_ip4)
self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
# Save allocated frame count
frame_allocated = {}
for fs in self.vapi.cli("show vlib frame-allocation").splitlines()[1:]:
spl = fs.split()
thread = int(spl[0])
size = int(spl[1])
alloc = int(spl[2])
key = (thread, size)
frame_allocated[key] = alloc
# cause reforks
_ = self.create_loopback_interfaces(1)
# send the same packet
self.pg0.add_stream(pkt)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture(1)
self.assertEquals(len(rx), 1)
rx = rx[0]
ether = rx[Ether]
ipv4 = rx[IP]
self.assertEqual(ether.src, self.pg0.local_mac)
self.assertEqual(ether.dst, self.pg0.remote_mac)
self.assertEqual(ipv4.src, self.pg0.local_ip4)
self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
# Check that no frame were leaked during refork
for fs in self.vapi.cli("show vlib frame-allocation").splitlines()[1:]:
spl = fs.split()
thread = int(spl[0])
size = int(spl[1])
alloc = int(spl[2])
key = (thread, size)
self.assertEqual(frame_allocated[key], alloc)
if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
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