1 files changed, 24 insertions, 0 deletions

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 2a480f6811ea..52b74e0eab2a 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5967,6 +5967,30 @@ static void tcp_openreq_init(struct request_sock *req,
         ireq->ir_mark = inet_request_mark(sk, skb);
 }
 
+struct request_sock *inet_reqsk_alloc(const struct request_sock_ops *ops,
+                                      struct sock *sk_listener)
+{
+        struct request_sock *req = reqsk_alloc(ops);
+
+        if (req) {
+                struct inet_request_sock *ireq = inet_rsk(req);
+
+                kmemcheck_annotate_bitfield(ireq, flags);
+                ireq->opt = NULL;
+                atomic64_set(&ireq->ir_cookie, 0);
+                ireq->ireq_state = TCP_NEW_SYN_RECV;
+                write_pnet(&ireq->ireq_net, sock_net(sk_listener));
+
+                /* Following is temporary. It is coupled with debugging
+                 * helpers in reqsk_put() & reqsk_free()
+                 */
+                atomic_set(&ireq->ireq_refcnt, 0);
+        }
+
+        return req;
+}
+EXPORT_SYMBOL(inet_reqsk_alloc);
+
 int tcp_conn_request(struct request_sock_ops *rsk_ops,
                      const struct tcp_request_sock_ops *af_ops,
                      struct sock *sk, struct sk_buff *skb)