tcp: move fastopen functions to tcp_fastopen.c

Move common TFO functions that will be used by both v4 and v6
to tcp_fastopen.c. Create a helper tcp_fastopen_queue_check().

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Daniel Lee <longinus00@gmail.com>
Signed-off-by: Jerry Chu <hkchu@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 2 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 3c9418456640..012236838583 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1329,8 +1329,14 @@ void tcp_free_fastopen_req(struct tcp_sock *tp);
 
 extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
 int tcp_fastopen_reset_cipher(void *key, unsigned int len);
-void tcp_fastopen_cookie_gen(__be32 src, __be32 dst,
-                             struct tcp_fastopen_cookie *foc);
+int tcp_fastopen_create_child(struct sock *sk,
+                              struct sk_buff *skb,
+                              struct sk_buff *skb_synack,
+                              struct request_sock *req);
+bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb,
+                        struct request_sock *req,
+                        struct tcp_fastopen_cookie *foc,
+                        struct tcp_fastopen_cookie *valid_foc);
 void tcp_fastopen_init_key_once(bool publish);
 #define TCP_FASTOPEN_KEY_LENGTH 16