1 files changed, 20 insertions, 0 deletions
diff --git a/tests/sys/netpfil/pf/rdr-srcport.py b/tests/sys/netpfil/pf/rdr-srcport.py
new file mode 100644
index 000000000000..633580582711
--- /dev/null
+++ b/tests/sys/netpfil/pf/rdr-srcport.py
@@ -0,0 +1,20 @@
+#
+# A helper script which accepts TCP connections and writes the remote port
+# number to the stream.
+#
+
+import socket
+
+def main():
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    s.bind(('0.0.0.0', 8888))
+    s.listen(5)
+
+    while True:
+        cs, addr = s.accept()
+        cs.sendall(str(addr[1]).encode())
+        cs.close()
+
+if __name__ == '__main__':
+    main()