Index: head/tests/sys/netpfil/pf/Makefile
===================================================================
--- head/tests/sys/netpfil/pf/Makefile	(revision 341998)
+++ head/tests/sys/netpfil/pf/Makefile	(revision 341999)
@@ -1,25 +1,26 @@
 # $FreeBSD$
 
 PACKAGE=	tests
 
 TESTSDIR=       ${TESTSBASE}/sys/netpfil/pf
 TESTS_SUBDIRS+=	ioctl
 
 ATF_TESTS_SH+=	anchor \
 		pass_block \
 		forward \
 		fragmentation \
 		names \
+		nat \
 		set_tos \
 		route_to \
 		synproxy \
 		set_skip \
 		pfsync
 
 ${PACKAGE}FILES+=	utils.subr \
 			echo_inetd.conf \
 			pft_ping.py
 
 ${PACKAGE}FILESMODE_pft_ping.py=	0555
 
 .include <bsd.test.mk>
Index: head/tests/sys/netpfil/pf/nat.sh
===================================================================
--- head/tests/sys/netpfil/pf/nat.sh	(nonexistent)
+++ head/tests/sys/netpfil/pf/nat.sh	(revision 341999)
@@ -0,0 +1,64 @@
+# $FreeBSD$
+
+. $(atf_get_srcdir)/utils.subr
+
+atf_test_case "exhaust" "cleanup"
+exhaust_head()
+{
+	atf_set descr 'Test exhausting the NAT pool'
+	atf_set require.user root
+}
+
+exhaust_body()
+{
+	pft_init
+
+	epair_nat=$(pft_mkepair)
+	epair_echo=$(pft_mkepair)
+
+	pft_mkjail nat ${epair_nat}b ${epair_echo}a
+	pft_mkjail echo ${epair_echo}b
+
+	ifconfig ${epair_nat}a 192.0.2.2/24 up
+	route add -net 198.51.100.0/24 192.0.2.1
+
+	jexec nat ifconfig ${epair_nat}b 192.0.2.1/24 up
+	jexec nat ifconfig ${epair_echo}a 198.51.100.1/24 up
+	jexec nat sysctl net.inet.ip.forwarding=1
+
+	jexec echo ifconfig ${epair_echo}b 198.51.100.2/24 up
+	jexec echo /usr/sbin/inetd $(atf_get_srcdir)/echo_inetd.conf
+
+	# Enable pf!
+	jexec nat pfctl -e
+	pft_set_rules nat \
+		"nat pass on ${epair_echo}a inet from 192.0.2.0/24 to any -> (${epair_echo}a) port 30000:30001 sticky-address"
+
+	# Sanity check
+	atf_check -s exit:0 -o ignore ping -c 3 198.51.100.2
+
+	echo "foo" | nc -N 198.51.100.2 7
+	echo "foo" | nc -N 198.51.100.2 7
+
+	# This one will fail, but that's expected
+	echo "foo" | nc -N 198.51.100.2 7 &
+
+	sleep 1
+
+	# If the kernel is stuck in pf_get_sport() this will not succeed either.
+	timeout 2 jexec nat pfctl -sa
+	if [ $? -eq 124 ]; then
+		# Timed out
+		atf_fail "pfctl timeout"
+	fi
+}
+
+exhaust_cleanup()
+{
+	pft_cleanup
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case "exhaust"
+}

Property changes on: head/tests/sys/netpfil/pf/nat.sh
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