1 files changed, 82 insertions, 0 deletions
diff --git a/tests/sys/common/divert.py b/tests/sys/common/divert.py
new file mode 100755
index 000000000000..830b61a585a0
--- /dev/null
+++ b/tests/sys/common/divert.py
@@ -0,0 +1,82 @@
+#!/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.
+#
+#
+
+
+from socket import socket, PF_DIVERT, SOCK_RAW
+import logging
+logging.getLogger("scapy").setLevel(logging.CRITICAL)
+import scapy.all as sc
+import argparse
+
+
+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('--divert_port', type=int, default=6668,
+                        help='divert port to use')
+    parser.add_argument('--test_name', type=str, required=True,
+                        help='test name to run')
+    return parser.parse_args()
+
+
+def ipdivert_ip_output_remote_success(args):
+    packet = sc.IP(dst=args.dip) / sc.ICMP(type='echo-request')
+    with socket(PF_DIVERT, SOCK_RAW, 0) as s:
+        s.bind(('0.0.0.0', args.divert_port))
+        s.sendto(bytes(packet), ('0.0.0.0', 0))
+
+
+def ipdivert_ip6_output_remote_success(args):
+    packet = sc.IPv6(dst=args.dip) / sc.ICMPv6EchoRequest()
+    with socket(PF_DIVERT, SOCK_RAW, 0) as s:
+        s.bind(('0.0.0.0', args.divert_port))
+        s.sendto(bytes(packet), ('0.0.0.0', 0))
+
+
+def ipdivert_ip_input_local_success(args):
+    """Sends IPv4 packet to OS stack as inbound local packet."""
+    packet = sc.IP(dst=args.dip,src=args.sip) / sc.ICMP(type='echo-request')
+    with socket(PF_DIVERT, SOCK_RAW, 0) as s:
+        s.bind(('0.0.0.0', args.divert_port))
+        s.sendto(bytes(packet), (args.dip, 0))
+
+
+# XXX: IPv6 local divert is currently not supported
+# TODO: add IPv4 ifname output verification
+
+
+def main():
+    args = parse_args()
+    test_ptr = globals()[args.test_name]
+    test_ptr(args)
+
+
+if __name__ == '__main__':
+    main()