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# BSD LICENSE
#
# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
'''
'''
from test_case import TestCase
import dts
from time import sleep
from scapy.all import *
#
#
# Test class.
#
class TestPmdPcap(TestCase):
pcap_file_sizes = [1000, 500]
dut_pcap_files_path = '/root/'
def set_up_all(self):
self.check_scapy_in_dut()
self.memory_channel = self.dut.get_memory_channels()
# Enable PCAP features and rebuild the package
self.pcap_config = self.get_pcap_compile_config()
self.dut.send_expect(
"sed -i 's/CONFIG_RTE_LIBRTE_PMD_PCAP=n$/CONFIG_RTE_LIBRTE_PMD_PCAP=y/' config/%s" % self.pcap_config, "# ")
self.dut.build_install_dpdk(self.target)
# make sure there is no interface to bind
# because if there is any interface bonded to igb_uio,
# it will result in packet transmiting failed
self.dut.restore_interfaces()
def get_pcap_compile_config(self):
config_head = "common_"
os_type = self.dut.get_os_type()
if os_type == "linux":
config_tail = os_type + "app"
elif os_type == "freebsd":
config_tail = "bsdapp"
else:
raise Exception(
"Unknow os type, please check to make sure pcap can work in OS [ %s ]" % os_type)
return config_head + config_tail
def create_pcap_file(self, filename, number_of_packets):
flow = []
for pkt_id in range(number_of_packets):
pkt_id = str(hex(pkt_id % 256))
flow.append(Ether(src='00:00:00:00:00:%s' % pkt_id[2:], dst='00:00:00:00:00:00') / IP(
src='192.168.1.1', dst='192.168.1.2') / ("X" * 26))
wrpcap(filename, flow)
def check_scapy_in_dut(self):
try:
self.dut.send_expect('scapy', '>>> ')
self.dut.send_expect('quit()', '# ')
except:
self.verify(False, 'Scapy is required in dut.')
def check_pcap_files(self, in_pcap, out_pcap, expected_frames):
# Check if the number of expected frames are in the output
result = self.dut.send_expect(
'tcpdump -n -e -r %s | wc -l' % out_pcap, '# ')
self.verify(str(expected_frames) in result,
'Not all packets have been forwarded')
# Check if the frames in the input and output files match
self.dut.send_expect('scapy', '>>> ')
self.dut.send_expect('input=rdpcap("%s")' % in_pcap, '>>> ')
self.dut.send_expect('output=rdpcap("%s")' % out_pcap, '>>> ')
self.dut.send_expect(
'result=[input[i]==output[i] for i in xrange(len(input))]', '>>> ')
result = self.dut.send_expect('False in result', '>>> ')
self.dut.send_expect('quit()', '# ')
self.verify('True' not in result, 'In/Out packets do not match.')
def test_send_packets_with_one_device(self):
in_pcap = 'in_pmdpcap.pcap'
out_pcap = '/tmp/out_pmdpcap.pcap'
two_cores = self.dut.get_core_list("1S/2C/1T")
core_mask = dts.create_mask(two_cores)
self.create_pcap_file(in_pcap, TestPmdPcap.pcap_file_sizes[0])
self.dut.session.copy_file_to(in_pcap)
command = ("./{}/app/testpmd -c {} -n {} " +
"--vdev=eth_pcap0,rx_pcap={},tx_pcap={} " +
"-- -i --port-topology=chained")
self.dut.send_expect(command.format(self.target, core_mask,
self.memory_channel,
TestPmdPcap.dut_pcap_files_path + in_pcap,
out_pcap), 'testpmd> ', 15)
self.dut.send_expect('start', 'testpmd> ')
sleep(2)
self.dut.send_expect('stop', 'testpmd> ')
self.dut.send_expect('quit', '# ')
self.check_pcap_files(TestPmdPcap.dut_pcap_files_path + in_pcap,
out_pcap, TestPmdPcap.pcap_file_sizes[0])
def test_send_packets_with_two_devices(self):
in_pcap1 = 'in1_pmdpcap.pcap'
out_pcap1 = '/tmp/out1_pmdpcap.pcap'
in_pcap2 = 'in2_pmdpcap.pcap'
out_pcap2 = '/tmp/out2_pmdpcap.pcap'
four_cores = self.dut.get_core_list("1S/4C/1T")
core_mask = dts.create_mask(four_cores)
self.create_pcap_file(in_pcap1, TestPmdPcap.pcap_file_sizes[0])
self.dut.session.copy_file_to(in_pcap1)
self.create_pcap_file(in_pcap2, TestPmdPcap.pcap_file_sizes[1])
self.dut.session.copy_file_to(in_pcap2)
command = ("./{}/app/testpmd -c {} -n {} " +
"--vdev=eth_pcap0,rx_pcap={},tx_pcap={} " +
"--vdev=eth_pcap1,rx_pcap={},tx_pcap={} " +
"-- -i")
self.dut.send_expect(command.format(self.target, core_mask,
self.memory_channel,
TestPmdPcap.dut_pcap_files_path +
in_pcap1,
out_pcap1,
TestPmdPcap.dut_pcap_files_path +
in_pcap2,
out_pcap2), 'testpmd> ', 10)
self.dut.send_expect('start', 'testpmd> ')
sleep(2)
self.dut.send_expect('stop', 'testpmd> ')
self.dut.send_expect('quit', '# ')
self.check_pcap_files(TestPmdPcap.dut_pcap_files_path + in_pcap1,
out_pcap2, TestPmdPcap.pcap_file_sizes[0])
self.check_pcap_files(TestPmdPcap.dut_pcap_files_path + in_pcap2,
out_pcap1, TestPmdPcap.pcap_file_sizes[1])
def tear_down_all(self):
# Disable PCAP feature and rebuild the package
self.dut.send_expect(
"sed -i 's/CONFIG_RTE_LIBRTE_PMD_PCAP=y$/CONFIG_RTE_LIBRTE_PMD_PCAP=n/' config/%s" % self.pcap_config, "# ")
self.dut.set_target(self.target)
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