diff --git a/source/tools/test/bpf_test/bpf/bpftest3.bpf.c b/source/tools/test/bpf_test/bpf/bpftest3.bpf.c
new file mode 100644
index 0000000000000000000000000000000000000000..13d66fd951783d7101227818dfa389d456760f4e
--- /dev/null
+++ b/source/tools/test/bpf_test/bpf/bpftest3.bpf.c
@@ -0,0 +1,36 @@
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#ifndef __section
+# define __section(NAME)                  \
+    __attribute__((section(NAME), used))
+#endif
+
+#define SOL_TCP 6
+__section ("sockops")
+int adjust_rto(struct bpf_sock_ops *skops)
+{
+        int op = (int) skops->op;
+        int rv = -1;
+        if (op == BPF_SOCK_OPS_TIMEOUT_INIT) {
+	        bpf_printk("set init rto: done\n");
+	        rv = 2; // 2 jiffies
+        }
+        else if (op == BPF_SOCK_OPS_TCP_CONNECT_CB) {
+                bpf_sock_ops_cb_flags_set(skops, BPF_SOCK_OPS_RTO_CB_FLAG);
+                bpf_printk("set rto flag: done\n");
+                int rto_min_usecs = 8000;
+                rv = bpf_setsockopt(skops, SOL_TCP, TCP_BPF_RTO_MIN, &rto_min_usecs, sizeof(rto_min_usecs));
+                bpf_printk("set min rto: %d\n", rv);
+                return 1;
+        }
+        else if (op == BPF_SOCK_OPS_RTO_CB) {
+                int current_rto = skops->args[1];
+                bpf_printk("current rto: %d\n", current_rto);
+                rv = 1;
+        }
+        skops->reply = rv;
+        return 1;
+}
+
+char _license[] __section("license") = "GPL";