1 files changed, 38 insertions, 0 deletions
diff --git a/tests/sys/netinet6/ra.py b/tests/sys/netinet6/ra.py
new file mode 100644
index 000000000000..44814418da48
--- /dev/null
+++ b/tests/sys/netinet6/ra.py
@@ -0,0 +1,38 @@
+#-
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2024 Klara, Inc.
+#
+
+import argparse
+import scapy.all as sp
+import sys
+
+#
+# Emit a router advertisement with the specified prefix.
+#
+def main():
+    parser = argparse.ArgumentParser("ra.py",
+        description="Emits Router Advertisement packets")
+    parser.add_argument('--sendif', nargs=1, required=True,
+        help='The interface through which the packet will be sent')
+    parser.add_argument('--src', nargs=1, required=True,
+        help='The source IP address')
+    parser.add_argument('--dst', nargs=1, required=True,
+        help='The destination IP address')
+    parser.add_argument('--prefix', nargs=1, required=True,
+        help='The prefix to be advertised')
+    parser.add_argument('--prefixlen', nargs=1, required=True, type=int,
+        help='The prefix length to be advertised')
+
+    args = parser.parse_args()
+    pkt = sp.Ether() / \
+          sp.IPv6(src=args.src, dst=args.dst) / \
+          sp.ICMPv6ND_RA(chlim=64) / \
+          sp.ICMPv6NDOptPrefixInfo(prefix=args.prefix, prefixlen=args.prefixlen)
+
+    sp.sendp(pkt, iface=args.sendif[0], verbose=False)
+    sys.exit(0)
+
+if __name__ == '__main__':
+    main()