2 files changed, 38 insertions, 2 deletions

diff --git a/tests/sys/netpfil/pf/nat64.py b/tests/sys/netpfil/pf/nat64.py
index ba0d2ae01a9e..990d99f57b08 100644
--- a/tests/sys/netpfil/pf/nat64.py
+++ b/tests/sys/netpfil/pf/nat64.py
@@ -33,7 +33,7 @@ from atf_python.sys.net.tools import ToolsHelper
 from atf_python.sys.net.vnet import VnetTestTemplate
 
 class TestNAT64(VnetTestTemplate):
-    REQUIRED_MODULES = [ "pf", "pflog" ]
+    REQUIRED_MODULES = [ "pf", "pflog", "pfsync" ]
     TOPOLOGY = {
         "vnet1": {"ifaces": ["if1"]},
         "vnet2": {"ifaces": ["if1", "if2"]},
@@ -101,7 +101,7 @@ class TestNAT64(VnetTestTemplate):
             "pass in on %s inet6 af-to inet from 192.0.2.1" % ifname,
         ])
 
-        vnet.pipe.send(socket.if_nametoindex("pflog0"))
+        vnet.pipe.send(socket.if_nametoindex("pfsync0"))
 
     @pytest.mark.require_user("root")
     @pytest.mark.require_progs(["scapy"])
diff --git a/tests/sys/netpfil/pf/pflog.sh b/tests/sys/netpfil/pf/pflog.sh
index 0b737a96791f..3b8221895146 100644
--- a/tests/sys/netpfil/pf/pflog.sh
+++ b/tests/sys/netpfil/pf/pflog.sh
@@ -459,6 +459,41 @@ rule_number_cleanup()
 	pft_cleanup
 }
 
+atf_test_case "create_destroy" "cleanup"
+create_destroy_head()
+{
+	atf_set descr 'Test adding/remove pflog interfaces'
+	atf_set require.user root
+}
+
+create_destroy_body()
+{
+	pflog_init
+
+	# Make sure pflog15 doesn't exist
+	atf_check -s exit:1 -e ignore timeout 3 \
+	    tcpdump -i pflog15
+
+	# Create more devices
+	sysctl net.pflog.if_count=16
+
+	# It does now
+	atf_check -s exit:124 -o ignore -e ignore timeout 3 \
+	    tcpdump -i pflog15
+
+	# Back down to the default 8 devices:
+	sysctl net.pflog.if_count=8
+
+	# And pflog15 no longer exists
+	atf_check -s exit:1 -e ignore timeout 3 \
+	    tcpdump -i pflog15
+}
+
+create_destroy_cleanup()
+{
+	pft_cleanup
+}
+
 atf_init_test_cases()
 {
 	atf_add_test_case "malformed"
@@ -469,4 +504,5 @@ atf_init_test_cases()
 	atf_add_test_case "unspecified_v6"
 	atf_add_test_case "rdr_action"
 	atf_add_test_case "rule_number"
+	atf_add_test_case "create_destroy"
 }