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-rw-r--r--include/linux/tcp.h1
-rw-r--r--include/net/tcp.h6
-rw-r--r--include/uapi/linux/snmp.h1
3 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index cfc2d9506ce8..cbe5b602a2d3 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -233,6 +233,7 @@ struct tcp_sock {
u8 syn_data:1, /* SYN includes data */
syn_fastopen:1, /* SYN includes Fast Open option */
syn_fastopen_exp:1,/* SYN includes Fast Open exp. option */
+ syn_fastopen_ch:1, /* Active TFO re-enabling probe */
syn_data_acked:1,/* data in SYN is acked by SYN-ACK */
save_syn:1, /* Save headers of SYN packet */
is_cwnd_limited:1;/* forward progress limited by snd_cwnd? */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index cc6ae0a95201..da28bef1d82b 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1506,6 +1506,12 @@ struct tcp_fastopen_context {
struct rcu_head rcu;
};
+extern unsigned int sysctl_tcp_fastopen_blackhole_timeout;
+void tcp_fastopen_active_disable(struct sock *sk);
+bool tcp_fastopen_active_should_disable(struct sock *sk);
+void tcp_fastopen_active_disable_ofo_check(struct sock *sk);
+void tcp_fastopen_active_timeout_reset(void);
+
/* Latencies incurred by various limits for a sender. They are
* chronograph-like stats that are mutually exclusive.
*/
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index cec0e171d20c..95cffcb21dfd 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -259,6 +259,7 @@ enum
LINUX_MIB_TCPFASTOPENPASSIVEFAIL, /* TCPFastOpenPassiveFail */
LINUX_MIB_TCPFASTOPENLISTENOVERFLOW, /* TCPFastOpenListenOverflow */
LINUX_MIB_TCPFASTOPENCOOKIEREQD, /* TCPFastOpenCookieReqd */
+ LINUX_MIB_TCPFASTOPENBLACKHOLE, /* TCPFastOpenBlackholeDetect */
LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES, /* TCPSpuriousRtxHostQueues */
LINUX_MIB_BUSYPOLLRXPACKETS, /* BusyPollRxPackets */
LINUX_MIB_TCPAUTOCORKING, /* TCPAutoCorking */