svn commit: r358853 - in head/tests/sys: common netinet netinet6

Alexander V. Chernikov melifaro at FreeBSD.org
Tue Mar 10 19:52:21 UTC 2020


Author: melifaro
Date: Tue Mar 10 19:52:19 2020
New Revision: 358853
URL: https://svnweb.freebsd.org/changeset/base/358853

Log:
  Add basic IPv4/IPv6 forwarding tests.
  
  MFC after:	2 weeks
  Differential Revision:	https://reviews.freebsd.org/D24002

Added:
  head/tests/sys/common/sender.py   (contents, props changed)
  head/tests/sys/netinet/forward.sh   (contents, props changed)
  head/tests/sys/netinet6/forward6.sh   (contents, props changed)
Modified:
  head/tests/sys/common/Makefile
  head/tests/sys/netinet/Makefile
  head/tests/sys/netinet6/Makefile

Modified: head/tests/sys/common/Makefile
==============================================================================
--- head/tests/sys/common/Makefile	Tue Mar 10 19:18:24 2020	(r358852)
+++ head/tests/sys/common/Makefile	Tue Mar 10 19:52:19 2020	(r358853)
@@ -4,7 +4,9 @@ PACKAGE=		tests
 TESTSDIR=		${TESTSBASE}/sys/common
 ${PACKAGE}FILES+=	vnet.subr
 ${PACKAGE}FILES+=	divert.py
+${PACKAGE}FILES+=	sender.py
 
 ${PACKAGE}FILESMODE_divert.py=0555
+${PACKAGE}FILESMODE_sender.py=0555
 
 .include <bsd.test.mk>

Added: head/tests/sys/common/sender.py
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/tests/sys/common/sender.py	Tue Mar 10 19:52:19 2020	(r358853)
@@ -0,0 +1,201 @@
+#!/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.
+#
+# $FreeBSD$
+#
+
+
+from functools import partial
+import socket
+import scapy.all as sc
+import argparse
+import time
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='divert socket tester')
+    parser.add_argument('--dip', type=str, help='destination packet IP')
+    parser.add_argument('--sip', type=str, help='source packet IP')
+    parser.add_argument('--dmac', type=str, help='packet dst mac')
+    parser.add_argument('--smac', type=str, help='packet src mac')
+    parser.add_argument('--iface', type=str, help='interface to use')
+    parser.add_argument('--test_name', type=str, required=True,
+                        help='test name to run')
+    return parser.parse_args()
+
+
+def send_packet(args, pkt):
+    sc.sendp(pkt, iface=args.iface, verbose=False)
+
+
+def is_icmp6_echo_request(pkt):
+    return pkt.type == 0x86DD and pkt.payload.nh == 58 and \
+            pkt.payload.payload.type == 128
+
+
+def check_forwarded_ip_packet(orig_pkt, fwd_pkt):
+    """
+    Checks that forwarded ICMP packet @fwd_ptk is the same as
+    @orig_pkt. Assumes router-on-the-stick forwarding behaviour:
+     * src/dst macs are swapped
+     * TTL is decremented
+    """
+    # Check ether fields
+    assert orig_pkt.src == fwd_pkt.dst
+    assert orig_pkt.dst == fwd_pkt.src
+    assert len(orig_pkt) == len(fwd_pkt)
+    # Check IP
+    fwd_ip = fwd_pkt[sc.IP]
+    orig_ip = orig_pkt[sc.IP]
+    assert orig_ip.src == orig_ip.src
+    assert orig_ip.dst == fwd_ip.dst
+    assert orig_ip.ttl == fwd_ip.ttl + 1
+    # Check ICMP
+    fwd_icmp = fwd_ip[sc.ICMP]
+    orig_icmp = orig_ip[sc.ICMP]
+    assert bytes(orig_ip.payload) == bytes(fwd_ip.payload)
+
+
+def fwd_ip_icmp_fast(args):
+    """
+    Sends ICMP packet via args.iface interface.
+    Receives and checks the forwarded packet.
+    Assumes forwarding router decrements TTL
+    """
+
+    def filter_f(x):
+        return x.src == args.dmac and x.type == 0x0800
+
+    e = sc.Ether(src=args.smac, dst=args.dmac)
+    ip = sc.IP(src=args.sip, dst=args.dip)
+    icmp = sc.ICMP(type='echo-request')
+    pkt = e / ip / icmp
+
+    send_cb = partial(send_packet, args, pkt)
+    packets = sc.sniff(iface=args.iface, started_callback=send_cb,
+                       stop_filter=filter_f, lfilter=filter_f, timeout=5)
+    assert len(packets) > 0
+    fwd_pkt = packets[-1]
+    try:
+        check_forwarded_ip_packet(pkt, fwd_pkt)
+    except Exception as e:
+        print('Original packet:')
+        pkt.show()
+        print('Forwarded packet:')
+        fwd_pkt.show()
+        for a_packet in packets:
+            a_packet.summary()
+        raise Exception from e
+
+
+def fwd_ip_icmp_slow(args):
+    """
+    Sends ICMP packet via args.iface interface.
+    Forces slow path processing by introducing IP option.
+    Receives and checks the forwarded packet.
+    Assumes forwarding router decrements TTL
+    """
+
+    def filter_f(x):
+        return x.src == args.dmac and x.type == 0x0800
+
+    e = sc.Ether(src=args.smac, dst=args.dmac)
+    # Add IP option to switch to 'normal' IP processing
+    stream_id = sc.IPOption_Stream_Id(security=0xFFFF)
+    ip = sc.IP(src=args.sip, dst=args.dip,
+               options=[sc.IPOption_Stream_Id(security=0xFFFF)])
+    icmp = sc.ICMP(type='echo-request')
+    pkt = e / ip / icmp
+
+    send_cb = partial(send_packet, args, pkt)
+    packets = sc.sniff(iface=args.iface, started_callback=send_cb,
+                       stop_filter=filter_f, lfilter=filter_f, timeout=5)
+    assert len(packets) > 0
+    check_forwarded_ip_packet(pkt, packets[-1])
+
+
+def check_forwarded_ip6_packet(orig_pkt, fwd_pkt):
+    """
+    Checks that forwarded ICMP packet @fwd_ptk is the same as
+    @orig_pkt. Assumes router-on-the-stick forwarding behaviour:
+     * src/dst macs are swapped
+     * TTL is decremented
+    """
+    # Check ether fields
+    assert orig_pkt.src == fwd_pkt.dst
+    assert orig_pkt.dst == fwd_pkt.src
+    assert len(orig_pkt) == len(fwd_pkt)
+    # Check IP
+    fwd_ip = fwd_pkt[sc.IPv6]
+    orig_ip = orig_pkt[sc.IPv6]
+    assert orig_ip.src == orig_ip.src
+    assert orig_ip.dst == fwd_ip.dst
+    assert orig_ip.hlim == fwd_ip.hlim + 1
+    # Check ICMPv6
+    assert bytes(orig_ip.payload) == bytes(fwd_ip.payload)
+
+
+def fwd_ip6_icmp(args):
+    """
+    Sends ICMPv6 packet via args.iface interface.
+    Receives and checks the forwarded packet.
+    Assumes forwarding router decrements TTL
+    """
+
+    def filter_f(x):
+        return x.src == args.dmac and is_icmp6_echo_request(x)
+
+    e = sc.Ether(src=args.smac, dst=args.dmac)
+    ip = sc.IPv6(src=args.sip, dst=args.dip)
+    icmp = sc.ICMPv6EchoRequest()
+    pkt = e / ip / icmp
+
+    send_cb = partial(send_packet, args, pkt)
+    packets = sc.sniff(iface=args.iface, started_callback=send_cb,
+                       stop_filter=filter_f, lfilter=filter_f, timeout=5)
+    assert len(packets) > 0
+    fwd_pkt = packets[-1]
+    try:
+        check_forwarded_ip6_packet(pkt, fwd_pkt)
+    except Exception as e:
+        print('Original packet:')
+        pkt.show()
+        print('Forwarded packet:')
+        fwd_pkt.show()
+        for idx, a_packet in enumerate(packets):
+            print('{}: {}'.format(idx, a_packet.summary()))
+        raise Exception from e
+
+
+def main():
+    args = parse_args()
+    test_ptr = globals()[args.test_name]
+    test_ptr(args)
+
+
+if __name__ == '__main__':
+    main()

Modified: head/tests/sys/netinet/Makefile
==============================================================================
--- head/tests/sys/netinet/Makefile	Tue Mar 10 19:18:24 2020	(r358852)
+++ head/tests/sys/netinet/Makefile	Tue Mar 10 19:52:19 2020	(r358853)
@@ -9,7 +9,7 @@ ATF_TESTS_C=	ip_reass_test \
 		so_reuseport_lb_test \
 		socket_afinet
 
-ATF_TESTS_SH=	fibs_test redirect divert
+ATF_TESTS_SH=	fibs_test redirect divert forward
 
 PROGS=	udp_dontroute tcp_user_cookie
 

Added: head/tests/sys/netinet/forward.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/tests/sys/netinet/forward.sh	Tue Mar 10 19:52:19 2020	(r358853)
@@ -0,0 +1,273 @@
+#!/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.
+#
+# $FreeBSD$
+#
+
+. $(atf_get_srcdir)/../common/vnet.subr
+
+atf_test_case "fwd_ip_icmp_iface_fast_success" "cleanup"
+fwd_ip_icmp_iface_fast_success_head() {
+
+	atf_set descr 'Test valid IPv4 on-stick fastforwarding to iface'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip_icmp_iface_fast_success_body() {
+
+	vnet_init
+
+	ip4a="192.0.2.1"
+	ip4b="192.0.2.2"
+	plen=29
+	src_ip="192.0.2.3"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet ${ip4a}/${plen}
+
+	jname="v4t-fwd_ip_icmp_iface_fast_success"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet ${ip4b}/${plen}
+
+	# Get router ip/mac
+	jail_ip=${ip4b}
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+
+	jexec ${jname} sysctl net.inet.ip.forwarding=1
+	# As we're doing router-on-the-stick, turn sending IP redirects off:
+	jexec ${jname} sysctl net.inet.ip.redirect=0
+
+	# echo "LOCAL: ${local_ip} ${local_mac}"
+	# echo "REMOTE: ${remote_rtr_ip} ${remote_rtr_mac}"
+
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip_icmp_fast \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${ip4a} \
+		--iface ${epair}a 
+
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded \(1 packet fast forwarded\)' jexec ${jname} netstat -sp ip
+}
+
+fwd_ip_icmp_iface_fast_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_test_case "fwd_ip_icmp_gw_fast_success" "cleanup"
+fwd_ip_icmp_gw_fast_success_head() {
+
+	atf_set descr 'Test valid IPv4 on-stick fastforwarding to gw'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip_icmp_gw_fast_success_body() {
+
+	vnet_init
+
+	ip4a="192.0.2.1"
+	ip4b="192.0.2.2"
+	plen=29
+	src_ip="192.0.2.3"
+	dst_ip="192.0.2.4"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet ${ip4a}/${plen}
+
+	jname="v4t-fwd_ip_icmp_gw_fast_success"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet ${ip4b}/${plen}
+
+	# Get router ip/mac
+	jail_ip=${ip4b}
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+
+	jexec ${jname} sysctl net.inet.ip.forwarding=1
+	# As we're doing router-on-the-stick, turn sending IP redirects off:
+	jexec ${jname} sysctl net.inet.ip.redirect=0
+
+	# Add host route
+	jexec ${jname} route -4 add -host ${dst_ip} ${ip4a}
+
+	# echo "LOCAL: ${local_ip} ${local_mac}"
+	# echo "REMOTE: ${remote_rtr_ip} ${remote_rtr_mac}"
+
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip_icmp_fast \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${dst_ip} \
+		--iface ${epair}a 
+
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded \(1 packet fast forwarded\)' jexec ${jname} netstat -sp ip
+}
+
+fwd_ip_icmp_gw_fast_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_test_case "fwd_ip_icmp_iface_slow_success" "cleanup"
+fwd_ip_icmp_iface_slow_success_head() {
+
+	atf_set descr 'Test valid IPv4 on-stick "slow" forwarding to iface'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip_icmp_iface_slow_success_body() {
+
+	vnet_init
+
+	ip4a="192.0.2.1"
+	ip4b="192.0.2.2"
+	plen=29
+	src_ip="192.0.2.3"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet ${ip4a}/${plen}
+
+	jname="v4t-fwd_ip_icmp_iface_slow_success"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet ${ip4b}/${plen}
+
+	# Get router ip/mac
+	jail_ip=${ip4b}
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+
+	jexec ${jname} sysctl net.inet.ip.forwarding=1
+	# As we're doing router-on-the-stick, turn sending IP redirects off:
+	jexec ${jname} sysctl net.inet.ip.redirect=0
+
+	# Generate packet with options to force slow-path
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip_icmp_slow \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${ip4a} \
+		--iface ${epair}a 
+
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded \(0 packets fast forwarded\)' jexec ${jname} netstat -sp ip
+}
+
+fwd_ip_icmp_iface_slow_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_test_case "fwd_ip_icmp_gw_slow_success" "cleanup"
+fwd_ip_icmp_gw_slow_success_head() {
+
+	atf_set descr 'Test valid IPv4 on-stick "slow" forwarding to gw'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip_icmp_gw_slow_success_body() {
+
+	vnet_init
+
+	ip4a="192.0.2.1"
+	ip4b="192.0.2.2"
+	plen=29
+	src_ip="192.0.2.3"
+	dst_ip="192.0.2.4"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet ${ip4a}/${plen}
+
+	jname="v4t-fwd_ip_icmp_gw_slow_success"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet ${ip4b}/${plen}
+
+	# Get router ip/mac
+	jail_ip=${ip4b}
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+
+	jexec ${jname} sysctl net.inet.ip.forwarding=1
+	# As we're doing router-on-the-stick, turn sending IP redirects off:
+	jexec ${jname} sysctl net.inet.ip.redirect=0
+
+	# Add host route
+	jexec ${jname} route -4 add -host ${dst_ip} ${ip4a}
+
+	# echo "LOCAL: ${local_ip} ${local_mac}"
+	# echo "REMOTE: ${remote_rtr_ip} ${remote_rtr_mac}"
+
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip_icmp_fast \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${dst_ip} \
+		--iface ${epair}a 
+
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded \(1 packet fast forwarded\)' jexec ${jname} netstat -sp ip
+}
+
+fwd_ip_icmp_gw_slow_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_init_test_cases()
+{
+
+	atf_add_test_case "fwd_ip_icmp_iface_fast_success"
+	atf_add_test_case "fwd_ip_icmp_gw_fast_success"
+	atf_add_test_case "fwd_ip_icmp_iface_slow_success"
+	atf_add_test_case "fwd_ip_icmp_gw_slow_success"
+}
+
+# end
+

Modified: head/tests/sys/netinet6/Makefile
==============================================================================
--- head/tests/sys/netinet6/Makefile	Tue Mar 10 19:18:24 2020	(r358852)
+++ head/tests/sys/netinet6/Makefile	Tue Mar 10 19:52:19 2020	(r358853)
@@ -10,7 +10,8 @@ ATF_TESTS_SH=			\
 				mld \
 				scapyi386 \
 				redirect \
-				divert
+				divert \
+				forward6
 
 ${PACKAGE}FILES+=		exthdr.py
 ${PACKAGE}FILES+=		mld.py

Added: head/tests/sys/netinet6/forward6.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/tests/sys/netinet6/forward6.sh	Tue Mar 10 19:52:19 2020	(r358853)
@@ -0,0 +1,482 @@
+#!/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
+
+atf_test_case "fwd_ip6_gu_icmp_iface_fast_success" "cleanup"
+fwd_ip6_gu_icmp_iface_fast_success_head() {
+
+	atf_set descr 'Test valid IPv6 global unicast fast-forwarding to interface'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip6_gu_icmp_iface_fast_success_body() {
+
+	ids=65529
+	id=`printf "%x" ${ids}`
+	if [ $$ -gt 65535 ]; then
+		xl=`printf "%x" $(($$ - 65535))`
+		yl="1"
+	else
+		xl=`printf "%x" $$`
+		yl=""
+	fi
+
+	vnet_init
+
+	ip6a="2001:db8:6666:0000:${yl}:${id}:1:${xl}"
+	ip6b="2001:db8:6666:0000:${yl}:${id}:2:${xl}"
+	plen=96
+
+	src_ip="2001:db8:6666:0000:${yl}:${id}:3:${xl}"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet6 ${ip6a}/${plen}
+
+	jname="v6t-${id}-${yl}-${xl}"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet6 ${ip6b}/${plen}
+
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+
+	# wait for DAD to complete
+	while [ `jexec ${jname} ifconfig ${epair}b inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+	while [ `ifconfig ${epair}a inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+
+	jexec ${jname} sysctl net.inet6.ip6.forwarding=1
+	# As we're doing router-on-the-stick, turn sending IP redirects off:
+	jexec ${jname} sysctl net.inet6.ip6.redirect=0
+
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip6_icmp \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${ip6a} \
+		--iface ${epair}a 
+	
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded' jexec ${jname} netstat -sp ip6
+}
+
+fwd_ip6_gu_icmp_iface_fast_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_test_case "fwd_ip6_gu_icmp_gw_gu_fast_success" "cleanup"
+fwd_ip6_gu_icmp_gw_gu_fast_success_head() {
+
+	atf_set descr 'Test valid IPv6 global unicast fast-forwarding to GU gw'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip6_gu_icmp_gw_gu_fast_success_body() {
+
+	ids=65528
+	id=`printf "%x" ${ids}`
+	if [ $$ -gt 65535 ]; then
+		xl=`printf "%x" $(($$ - 65535))`
+		yl="1"
+	else
+		xl=`printf "%x" $$`
+		yl=""
+	fi
+
+	vnet_init
+
+	ip6a="2001:db8:6666:0000:${yl}:${id}:1:${xl}"
+	ip6b="2001:db8:6666:0000:${yl}:${id}:2:${xl}"
+	plen=96
+
+	src_ip="2001:db8:6666:0000:${yl}:${id}:3:${xl}"
+	dst_ip="2001:db8:6666:0000:${yl}:${id}:4:${xl}"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet6 ${ip6a}/${plen}
+
+	jname="v6t-${id}-${yl}-${xl}"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet6 ${ip6b}/${plen}
+
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+
+	# wait for DAD to complete
+	while [ `jexec ${jname} ifconfig ${epair}b inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+	while [ `ifconfig ${epair}a inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+
+	# Add static route back to us
+	jexec ${jname} route add -6 -host ${dst_ip} ${ip6a}
+
+	jexec ${jname} sysctl net.inet6.ip6.forwarding=1
+	# As we're doing router-on-the-stick, turn sending IP redirects off:
+	jexec ${jname} sysctl net.inet6.ip6.redirect=0
+
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip6_icmp \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${dst_ip} \
+		--iface ${epair}a 
+	
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded' jexec ${jname} netstat -sp ip6
+}
+
+fwd_ip6_gu_icmp_gw_gu_fast_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_test_case "fwd_ip6_gu_icmp_gw_ll_fast_success" "cleanup"
+fwd_ip6_gu_icmp_gw_ll_fast_success_head() {
+
+	atf_set descr 'Test valid IPv6 global unicast fast-forwarding to LL gw'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip6_gu_icmp_gw_ll_fast_success_body() {
+
+	ids=65527
+	id=`printf "%x" ${ids}`
+	if [ $$ -gt 65535 ]; then
+		xl=`printf "%x" $(($$ - 65535))`
+		yl="1"
+	else
+		xl=`printf "%x" $$`
+		yl=""
+	fi
+
+	vnet_init
+
+	ip6a="2001:db8:6666:0000:${yl}:${id}:1:${xl}"
+	ip6b="2001:db8:6666:0000:${yl}:${id}:2:${xl}"
+	plen=96
+
+	src_ip="2001:db8:6666:0000:${yl}:${id}:3:${xl}"
+	dst_ip="2001:db8:6666:0000:${yl}:${id}:4:${xl}"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet6 ${ip6a}/${plen}
+
+	jname="v6t-${id}-${yl}-${xl}"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet6 ${ip6b}/${plen}
+
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+	our_ll_ip=`ifconfig ${epair}a inet6 | awk '$1~/inet6/&& $2~/^fe80:/{print$2}' | awk -F% '{print$1}'`
+
+	# wait for DAD to complete
+	while [ `jexec ${jname} ifconfig ${epair}b inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+	while [ `ifconfig ${epair}a inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+
+	# Add static route back to us
+	atf_check -s exit:0 -o ignore jexec ${jname} route add -6 -host ${dst_ip} ${our_ll_ip}%${epair}b
+
+	jexec ${jname} sysctl net.inet6.ip6.forwarding=1
+	# As we're doing router-on-the-stick, turn sending IP redirects off:
+	jexec ${jname} sysctl net.inet6.ip6.redirect=0
+
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip6_icmp \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${dst_ip} \
+		--iface ${epair}a 
+	
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded' jexec ${jname} netstat -sp ip6
+}
+
+fwd_ip6_gu_icmp_gw_ll_fast_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_test_case "fwd_ip6_gu_icmp_iface_slow_success" "cleanup"
+fwd_ip6_gu_icmp_iface_slow_success_head() {
+
+	atf_set descr 'Test valid IPv6 global unicast fast-forwarding to interface'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip6_gu_icmp_iface_slow_success_body() {
+
+	ids=65526
+	id=`printf "%x" ${ids}`
+	if [ $$ -gt 65535 ]; then
+		xl=`printf "%x" $(($$ - 65535))`
+		yl="1"
+	else
+		xl=`printf "%x" $$`
+		yl=""
+	fi
+
+	vnet_init
+
+	ip6a="2001:db8:6666:0000:${yl}:${id}:1:${xl}"
+	ip6b="2001:db8:6666:0000:${yl}:${id}:2:${xl}"
+	plen=96
+
+	src_ip="2001:db8:6666:0000:${yl}:${id}:3:${xl}"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet6 ${ip6a}/${plen}
+
+	jname="v6t-${id}-${yl}-${xl}"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet6 ${ip6b}/${plen}
+
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+
+	# wait for DAD to complete
+	while [ `jexec ${jname} ifconfig ${epair}b inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+	while [ `ifconfig ${epair}a inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+
+	jexec ${jname} sysctl net.inet6.ip6.forwarding=1
+	# Do not turn off route redirects to ensure slow path is on
+
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip6_icmp \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${ip6a} \
+		--iface ${epair}a 
+	
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded' jexec ${jname} netstat -sp ip6
+}
+
+fwd_ip6_gu_icmp_iface_slow_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_test_case "fwd_ip6_gu_icmp_gw_gu_slow_success" "cleanup"
+fwd_ip6_gu_icmp_gw_gu_slow_success_head() {
+
+	atf_set descr 'Test valid IPv6 global unicast fast-forwarding to GU gw'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip6_gu_icmp_gw_gu_slow_success_body() {
+
+	ids=65525
+	id=`printf "%x" ${ids}`
+	if [ $$ -gt 65535 ]; then
+		xl=`printf "%x" $(($$ - 65535))`
+		yl="1"
+	else
+		xl=`printf "%x" $$`
+		yl=""
+	fi
+
+	vnet_init
+
+	ip6a="2001:db8:6666:0000:${yl}:${id}:1:${xl}"
+	ip6b="2001:db8:6666:0000:${yl}:${id}:2:${xl}"
+	plen=96
+
+	src_ip="2001:db8:6666:0000:${yl}:${id}:3:${xl}"
+	dst_ip="2001:db8:6666:0000:${yl}:${id}:4:${xl}"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet6 ${ip6a}/${plen}
+
+	jname="v6t-${id}-${yl}-${xl}"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet6 ${ip6b}/${plen}
+
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+
+	# wait for DAD to complete
+	while [ `jexec ${jname} ifconfig ${epair}b inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+	while [ `ifconfig ${epair}a inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+
+	# Add static route back to us
+	jexec ${jname} route add -6 -host ${dst_ip} ${ip6a}
+
+	jexec ${jname} sysctl net.inet6.ip6.forwarding=1
+	# Do not turn off route redirects to ensure slow path is on
+
+	# atf_check -s exit:0
+		$(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip6_icmp \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${dst_ip} \
+		--iface ${epair}a 
+	jexec ${jname} netstat -sp ip6
+	
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded' jexec ${jname} netstat -sp ip6
+}
+
+fwd_ip6_gu_icmp_gw_gu_slow_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_test_case "fwd_ip6_gu_icmp_gw_ll_slow_success" "cleanup"
+fwd_ip6_gu_icmp_gw_ll_slow_success_head() {
+
+	atf_set descr 'Test valid IPv6 global unicast fast-forwarding to LL gw'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+fwd_ip6_gu_icmp_gw_ll_slow_success_body() {
+
+	ids=65524
+	id=`printf "%x" ${ids}`
+	if [ $$ -gt 65535 ]; then
+		xl=`printf "%x" $(($$ - 65535))`
+		yl="1"
+	else
+		xl=`printf "%x" $$`
+		yl=""
+	fi
+
+	vnet_init
+
+	ip6a="2001:db8:6666:0000:${yl}:${id}:1:${xl}"
+	ip6b="2001:db8:6666:0000:${yl}:${id}:2:${xl}"
+	plen=96
+
+	src_ip="2001:db8:6666:0000:${yl}:${id}:3:${xl}"
+	dst_ip="2001:db8:6666:0000:${yl}:${id}:4:${xl}"
+
+	script_name="../common/sender.py"
+
+	epair=$(vnet_mkepair)
+	ifconfig ${epair}a up
+	ifconfig ${epair}a inet6 ${ip6a}/${plen}
+
+	jname="v6t-${id}-${yl}-${xl}"
+	vnet_mkjail ${jname} ${epair}b
+	jexec ${jname} ifconfig ${epair}b up
+	jexec ${jname} ifconfig ${epair}b inet6 ${ip6b}/${plen}
+
+	jail_mac=`jexec ${jname} ifconfig ${epair}b ether | awk '$1~/ether/{print$2}'`
+
+	our_mac=`ifconfig ${epair}a ether | awk '$1~/ether/{print$2}'`
+	our_ll_ip=`ifconfig ${epair}a inet6 | awk '$1~/inet6/&& $2~/^fe80:/{print$2}' | awk -F% '{print$1}'`
+
+	# wait for DAD to complete
+	while [ `jexec ${jname} ifconfig ${epair}b inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+	while [ `ifconfig ${epair}a inet6 | grep -c tentative` != "0" ]; do
+		sleep 0.1
+	done
+
+	# Add static route back to us
+	atf_check -s exit:0 -o ignore jexec ${jname} route add -6 -host ${dst_ip} ${our_ll_ip}%${epair}b
+
+	jexec ${jname} sysctl net.inet6.ip6.forwarding=1
+	# Do not turn off route redirects to ensure slow path is on
+
+	atf_check -s exit:0 $(atf_get_srcdir)/${script_name} \
+		--test_name fwd_ip6_icmp \
+		--smac ${our_mac} --dmac ${jail_mac} \
+		--sip ${src_ip} --dip ${dst_ip} \
+		--iface ${epair}a 
+	
+	# check counters are valid
+	atf_check -o match:'1 packet forwarded' jexec ${jname} netstat -sp ip6
+}
+
+fwd_ip6_gu_icmp_gw_ll_slow_success_cleanup() {
+
+	vnet_cleanup
+}
+
+atf_init_test_cases()
+{
+
+	atf_add_test_case "fwd_ip6_gu_icmp_iface_fast_success"
+	atf_add_test_case "fwd_ip6_gu_icmp_gw_gu_fast_success"
+	atf_add_test_case "fwd_ip6_gu_icmp_gw_ll_fast_success"
+	atf_add_test_case "fwd_ip6_gu_icmp_iface_slow_success"
+	atf_add_test_case "fwd_ip6_gu_icmp_gw_gu_slow_success"
+	atf_add_test_case "fwd_ip6_gu_icmp_gw_ll_slow_success"
+}
+
+# end
+

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***


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