1 files changed, 37 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/empty_skb.c b/tools/testing/selftests/bpf/progs/empty_skb.c
new file mode 100644
index 000000000000..4b0cd6753251
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/empty_skb.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+char _license[] SEC("license") = "GPL";
+
+int ifindex;
+int ret;
+
+SEC("lwt_xmit")
+int redirect_ingress(struct __sk_buff *skb)
+{
+	ret = bpf_clone_redirect(skb, ifindex, BPF_F_INGRESS);
+	return 0;
+}
+
+SEC("lwt_xmit")
+int redirect_egress(struct __sk_buff *skb)
+{
+	ret = bpf_clone_redirect(skb, ifindex, 0);
+	return 0;
+}
+
+SEC("tc")
+int tc_redirect_ingress(struct __sk_buff *skb)
+{
+	ret = bpf_clone_redirect(skb, ifindex, BPF_F_INGRESS);
+	return 0;
+}
+
+SEC("tc")
+int tc_redirect_egress(struct __sk_buff *skb)
+{
+	ret = bpf_clone_redirect(skb, ifindex, 0);
+	return 0;
+}