Add basic IPDIVERT tests.

Reviewed by:	lwhsu,kp
Differential Revision:	https://reviews.freebsd.org/D23316
This commit is contained in:
Alexander V. Chernikov 2020-02-14 09:36:35 +00:00
parent c27ac74f9c
commit 2207447bf4
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=357905
6 changed files with 340 additions and 2 deletions

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@ -3,5 +3,8 @@
PACKAGE= tests
TESTSDIR= ${TESTSBASE}/sys/common
${PACKAGE}FILES+= vnet.subr
${PACKAGE}FILES+= divert.py
${PACKAGE}FILESMODE_divert.py=0555
.include <bsd.test.mk>

83
tests/sys/common/divert.py Executable file
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@ -0,0 +1,83 @@
#!/usr/bin/env python
# -
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2020 Alexander V. Chernikov
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
#
# $FreeBSD$
#
import socket
import scapy.all as sc
import argparse
IPPROTO_DIVERT = 258
def parse_args():
parser = argparse.ArgumentParser(description='divert socket tester')
parser.add_argument('--dip', type=str, help='destination packet IP')
parser.add_argument('--divert_port', type=int, default=6668,
help='divert port to use')
parser.add_argument('--test_name', type=str, required=True,
help='test name to run')
return parser.parse_args()
def ipdivert_ip_output_remote_success(args):
packet = sc.IP(dst=args.dip) / sc.ICMP(type='echo-request')
with socket.socket(socket.AF_INET, socket.SOCK_RAW, IPPROTO_DIVERT) as s:
s.bind(('0.0.0.0', args.divert_port))
s.sendto(bytes(packet), ('0.0.0.0', 0))
def ipdivert_ip6_output_remote_success(args):
packet = sc.IPv6(dst=args.dip) / sc.ICMPv6EchoRequest()
with socket.socket(socket.AF_INET, socket.SOCK_RAW, IPPROTO_DIVERT) as s:
s.bind(('0.0.0.0', args.divert_port))
s.sendto(bytes(packet), ('0.0.0.0', 0))
def ipdivert_ip_input_local_success(args):
"""Sends IPv4 packet to OS stack as inbound local packet."""
packet = sc.IP(dst=args.dip) / sc.ICMP(type='echo-request')
with socket.socket(socket.AF_INET, socket.SOCK_RAW, IPPROTO_DIVERT) as s:
s.bind(('0.0.0.0', args.divert_port))
s.sendto(bytes(packet), (args.dip, 0))
# XXX: IPv6 local divert is currently not supported
# TODO: add IPv4 ifname output verification
def main():
args = parse_args()
test_ptr = globals()[args.test_name]
test_ptr(args)
if __name__ == '__main__':
main()

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@ -9,7 +9,7 @@ ATF_TESTS_C= ip_reass_test \
so_reuseport_lb_test \
socket_afinet
ATF_TESTS_SH= fibs_test redirect
ATF_TESTS_SH= fibs_test redirect divert
PROGS= udp_dontroute tcp_user_cookie

148
tests/sys/netinet/divert.sh Executable file
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@ -0,0 +1,148 @@
#!/usr/bin/env atf-sh
#-
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2020 Alexander V. Chernikov
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
#
# $FreeBSD$
#
. $(atf_get_srcdir)/../common/vnet.subr
load_divert_module() {
kldstat -q -n ipdivert
if [ $? -ne 0 ]; then
atf_skip "ipdivert module is not loaded"
fi
}
atf_test_case "ipdivert_ip_output_remote_success" "cleanup"
ipdivert_ip_output_remote_success_head() {
atf_set descr 'Test diverting IPv4 packet to remote destination'
atf_set require.user root
atf_set require.progs scapy
}
ipdivert_ip_output_remote_success_body() {
ids=65530
id=`printf "%x" ${ids}`
if [ $$ -gt 65535 ]; then
xl=`printf "%x" $(($$ - 65535))`
yl="1"
else
xl=`printf "%x" $$`
yl=""
fi
vnet_init
load_divert_module
ip4a="192.0.2.5"
ip4b="192.0.2.6"
script_name="../common/divert.py"
epair=$(vnet_mkepair)
ifconfig ${epair}a up
ifconfig ${epair}a inet ${ip4a}/30
jname="v4t-${id}-${yl}-${xl}"
vnet_mkjail ${jname} ${epair}b
jexec ${jname} ifconfig ${epair}b up
jexec ${jname} ifconfig ${epair}b inet ${ip4b}/30
atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
--dip ${ip4b} --test_name ipdivert_ip_output_remote_success
count=`jexec ${jname} netstat -s -p icmp | grep 'Input histogram:' -A8 | grep -c 'echo: '`
# Verify redirect got installed
atf_check_equal "1" "${count}"
}
ipdivert_ip_output_remote_success_cleanup() {
vnet_cleanup
}
atf_test_case "ipdivert_ip_input_local_success" "cleanup"
ipdivert_ip_input_local_success_head() {
atf_set descr 'Test diverting IPv4 packet to remote destination'
atf_set require.user root
atf_set require.progs scapy
}
ipdivert_ip_input_local_success_body() {
ids=65529
id=`printf "%x" ${ids}`
if [ $$ -gt 65535 ]; then
xl=`printf "%x" $(($$ - 65535))`
yl="1"
else
xl=`printf "%x" $$`
yl=""
fi
vnet_init
load_divert_module
ip4a="192.0.2.5"
ip4b="192.0.2.6"
script_name="../common/divert.py"
epair=$(vnet_mkepair)
ifconfig ${epair}a up
ifconfig ${epair}a inet ${ip4a}/30
jname="v4t-${id}-${yl}-${xl}"
vnet_mkjail ${jname} ${epair}b
jexec ${jname} ifconfig ${epair}b up
jexec ${jname} ifconfig ${epair}b inet ${ip4b}/30
atf_check -s exit:0 jexec ${jname} $(atf_get_srcdir)/${script_name} \
--dip ${ip4b} --test_name ipdivert_ip_input_local_success
count=`jexec ${jname} netstat -s -p icmp | grep 'Input histogram:' -A8 | grep -c 'echo: '`
# Verify redirect got installed
atf_check_equal "1" "${count}"
}
ipdivert_ip_input_local_success_cleanup() {
vnet_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "ipdivert_ip_output_remote_success"
atf_add_test_case "ipdivert_ip_input_local_success"
}
# end

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@ -9,7 +9,8 @@ ATF_TESTS_SH= \
exthdr \
mld \
scapyi386 \
redirect
redirect \
divert
${PACKAGE}FILES+= exthdr.py
${PACKAGE}FILES+= mld.py

103
tests/sys/netinet6/divert.sh Executable file
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@ -0,0 +1,103 @@
#!/usr/bin/env atf-sh
#-
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2020 Alexander V. Chernikov
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
#
# $FreeBSD$
#
. $(atf_get_srcdir)/../common/vnet.subr
load_divert_module() {
kldstat -q -n ipdivert
if [ $? -ne 0 ]; then
atf_skip "ipdivert module is not loaded"
fi
}
atf_test_case "ipdivert_ip6_output_remote_success" "cleanup"
ipdivert_ip6_output_remote_success_head() {
atf_set descr 'Test valid IPv6 redirect'
atf_set require.user root
atf_set require.progs scapy
}
ipdivert_ip6_output_remote_success_body() {
ids=65530
id=`printf "%x" ${ids}`
if [ $$ -gt 65535 ]; then
xl=`printf "%x" $(($$ - 65535))`
yl="1"
else
xl=`printf "%x" $$`
yl=""
fi
vnet_init
load_divert_module
ip6a="2001:db8:6666:0000:${yl}:${id}:1:${xl}"
ip6b="2001:db8:6666:0000:${yl}:${id}:2:${xl}"
script_name="../common/divert.py"
epair=$(vnet_mkepair)
ifconfig ${epair}a up
ifconfig ${epair}a inet6 ${ip6a}/64
jname="v6t-${id}-${yl}-${xl}"
vnet_mkjail ${jname} ${epair}b
jexec ${jname} ifconfig ${epair}b up
jexec ${jname} ifconfig ${epair}b inet6 ${ip6b}/64
# wait for DAD to complete
sleep 2
# echo "LOCAL: ${local_ll_ip} ${local_ll_mac}"
# echo "REMOTE: ${remote_rtr_ll_ip} ${remote_rtr_mac}"
atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
--dip ${ip6b} --test_name ipdivert_ip6_output_remote_success
count=`jexec ${jname} netstat -s -p icmp6 | grep 'Input histogram:' -A1 | grep -c 'echo:'`
# Verify redirect got installed
atf_check_equal "1" "${count}"
}
ipdivert_ip6_output_remote_success_cleanup() {
vnet_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "ipdivert_ip6_output_remote_success"
}
# end