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-rw-r--r--include/linux/snmp.h1
-rw-r--r--include/linux/tcp.h6
-rw-r--r--include/net/tcp.h9
3 files changed, 15 insertions, 1 deletions
diff --git a/include/linux/snmp.h b/include/linux/snmp.h
index e5fcbd079e4..00bc189cb39 100644
--- a/include/linux/snmp.h
+++ b/include/linux/snmp.h
@@ -238,6 +238,7 @@ enum
LINUX_MIB_TCPOFOMERGE, /* TCPOFOMerge */
LINUX_MIB_TCPCHALLENGEACK, /* TCPChallengeACK */
LINUX_MIB_TCPSYNCHALLENGE, /* TCPSYNChallenge */
+ LINUX_MIB_TCPFASTOPENACTIVE, /* TCPFastOpenActive */
__LINUX_MIB_MAX
};
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 12948f54383..1edf96afab4 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -386,7 +386,8 @@ struct tcp_sock {
unused : 1;
u8 repair_queue;
u8 do_early_retrans:1,/* Enable RFC5827 early-retransmit */
- early_retrans_delayed:1; /* Delayed ER timer installed */
+ early_retrans_delayed:1, /* Delayed ER timer installed */
+ syn_fastopen:1; /* SYN includes Fast Open option */
/* RTT measurement */
u32 srtt; /* smoothed round trip time << 3 */
@@ -500,6 +501,9 @@ struct tcp_sock {
struct tcp_md5sig_info __rcu *md5sig_info;
#endif
+/* TCP fastopen related information */
+ struct tcp_fastopen_request *fastopen_req;
+
/* When the cookie options are generated and exchanged, then this
* object holds a reference to them (cookie_values->kref). Also
* contains related tcp_cookie_transactions fields.
diff --git a/include/net/tcp.h b/include/net/tcp.h
index e601da19736..867557b4244 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1289,6 +1289,15 @@ extern int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff
extern int tcp_md5_hash_key(struct tcp_md5sig_pool *hp,
const struct tcp_md5sig_key *key);
+struct tcp_fastopen_request {
+ /* Fast Open cookie. Size 0 means a cookie request */
+ struct tcp_fastopen_cookie cookie;
+ struct msghdr *data; /* data in MSG_FASTOPEN */
+ u16 copied; /* queued in tcp_connect() */
+};
+
+void tcp_free_fastopen_req(struct tcp_sock *tp);
+
/* write queue abstraction */
static inline void tcp_write_queue_purge(struct sock *sk)
{