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diff --git a/tests/sys/netpfil/common/Makefile b/tests/sys/netpfil/common/Makefile
--- a/tests/sys/netpfil/common/Makefile
+++ b/tests/sys/netpfil/common/Makefile
@@ -17,8 +17,10 @@
utils.subr \
runner.subr \
pft_ping.py \
+ pft_synflood.py \
sniffer.py
${PACKAGE}FILESMODE_pft_ping.py= 0555
+${PACKAGE}FILESMODE_pft_synflood.py= 0555
.include <bsd.test.mk>
diff --git a/tests/sys/netpfil/common/pft_synflood.py b/tests/sys/netpfil/common/pft_synflood.py
new file mode 100644
--- /dev/null
+++ b/tests/sys/netpfil/common/pft_synflood.py
@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2021 Rubicon Communications, LLC (Netgate)
+#
+# 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.
+
+import argparse
+import logging
+logging.getLogger("scapy").setLevel(logging.CRITICAL)
+import scapy.all as sp
+
+def syn_flood(args):
+ s = sp.conf.L2socket(iface=args.sendif[0])
+
+ # Set a src mac, to avoid doing lookups which really slow us down.
+ ether = sp.Ether(src='01:02:03:04:05')
+ ip = sp.IP(dst=args.to[0])
+ for i in range(int(args.count[0])):
+ tcp = sp.TCP(flags='S', sport=1+i, dport=22, seq=500+i)
+ pkt = ether / ip / tcp
+ s.send(pkt)
+
+def main():
+ parser = argparse.ArgumentParser("pft_synflood.py",
+ description="SYN flooding tool")
+ parser.add_argument('--sendif', nargs=1,
+ required=True,
+ help='The interface through which the packet(s) will be sent')
+ parser.add_argument('--to', nargs=1,
+ required=True,
+ help='The destination IP address for the SYN packets')
+ parser.add_argument('--count', nargs=1,
+ required=True,
+ help='The number of packets to send')
+
+ args = parser.parse_args()
+
+ syn_flood(args)
+
+if __name__ == '__main__':
+ main()
diff --git a/tests/sys/netpfil/pf/Makefile b/tests/sys/netpfil/pf/Makefile
--- a/tests/sys/netpfil/pf/Makefile
+++ b/tests/sys/netpfil/pf/Makefile
@@ -11,6 +11,7 @@
dup \
forward \
fragmentation \
+ get_state \
icmp \
killstate \
map_e \
diff --git a/tests/sys/netpfil/pf/get_state.sh b/tests/sys/netpfil/pf/get_state.sh
new file mode 100644
--- /dev/null
+++ b/tests/sys/netpfil/pf/get_state.sh
@@ -0,0 +1,81 @@
+# $FreeBSD$
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2021 Rubicon Communications, LLC (Netgate)
+#
+# 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.
+
+. $(atf_get_srcdir)/utils.subr
+
+common_dir=$(atf_get_srcdir)/../common
+
+atf_test_case "many" "cleanup"
+many_head()
+{
+ atf_set descr 'Test retrieving many states'
+ atf_set require.user root
+ atf_set require.progs scapy
+}
+
+many_body()
+{
+ pft_init
+
+ epair=$(vnet_mkepair)
+ ifconfig ${epair}a 192.0.2.1/24 up
+
+ vnet_mkjail alcatraz ${epair}b
+ jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
+ jexec alcatraz pfctl -e
+
+ pft_set_rules alcatraz "set timeout tcp.closed 60000" \
+ "pass in proto icmp" \
+ "pass in proto tcp"
+
+ # Sanity check
+ atf_check -s exit:0 -o ignore ping -c 1 -W 1 192.0.2.2
+
+ # Now syn flood to create many states
+ ${common_dir}/pft_synflood.py \
+ --sendif ${epair}a \
+ --to 192.0.2.2 \
+ --count 20000
+
+ count=$(time jexec alcatraz pfctl -ss | wc -l 2>time.txt)
+ echo "Found $count states in `cat time.txt`"
+ if [ $count -lt 20000 ];
+ then
+ atf_fail "Fail to retrieve states"
+ fi
+}
+
+many_cleanup()
+{
+ rm -f time.txt
+ pft_cleanup
+}
+
+atf_init_test_cases()
+{
+ atf_add_test_case "many"
+}

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