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Diffstat (limited to 'include/linux/tcp.h')
-rw-r--r--include/linux/tcp.h31
1 files changed, 24 insertions, 7 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index a17ae7b85218..c93f4b3a59cb 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -62,8 +62,13 @@ static inline unsigned int tcp_optlen(const struct sk_buff *skb)
/* TCP Fast Open Cookie as stored in memory */
struct tcp_fastopen_cookie {
+ union {
+ u8 val[TCP_FASTOPEN_COOKIE_MAX];
+#if IS_ENABLED(CONFIG_IPV6)
+ struct in6_addr addr;
+#endif
+ };
s8 len;
- u8 val[TCP_FASTOPEN_COOKIE_MAX];
bool exp; /* In RFC6994 experimental option format */
};
@@ -123,6 +128,7 @@ struct tcp_request_sock {
u32 txhash;
u32 rcv_isn;
u32 snt_isn;
+ u32 ts_off;
u32 last_oow_ack_time; /* last SYNACK */
u32 rcv_nxt; /* the ack # by SYNACK. For
* FastOpen it's the seq#
@@ -176,8 +182,6 @@ struct tcp_sock {
* sum(delta(snd_una)), or how many bytes
* were acked.
*/
- struct u64_stats_sync syncp; /* protects 64bit vars (cf tcp_get_info()) */
-
u32 snd_una; /* First byte we want an ack for */
u32 snd_sml; /* Last byte of the most recently transmitted small packet */
u32 rcv_tstamp; /* timestamp of last received ACK (for keepalives) */
@@ -187,7 +191,6 @@ struct tcp_sock {
u32 tsoffset; /* timestamp offset */
struct list_head tsq_node; /* anchor in tsq_tasklet.head list */
- unsigned long tsq_flags;
/* Data for direct copy to user */
struct {
@@ -213,8 +216,11 @@ struct tcp_sock {
u8 reord; /* reordering detected */
} rack;
u16 advmss; /* Advertised MSS */
- u8 rate_app_limited:1, /* rate_{delivered,interval_us} limited? */
- unused:7;
+ u32 chrono_start; /* Start time in jiffies of a TCP chrono */
+ u32 chrono_stat[3]; /* Time in jiffies for chrono_stat stats */
+ u8 chrono_type:2, /* current chronograph type */
+ rate_app_limited:1, /* rate_{delivered,interval_us} limited? */
+ unused:5;
u8 nonagle : 4,/* Disable Nagle algorithm? */
thin_lto : 1,/* Use linear timeouts for thin streams */
thin_dupack : 1,/* Fast retransmit on first dupack */
@@ -362,7 +368,7 @@ struct tcp_sock {
u32 *saved_syn;
};
-enum tsq_flags {
+enum tsq_enum {
TSQ_THROTTLED,
TSQ_QUEUED,
TCP_TSQ_DEFERRED, /* tcp_tasklet_func() found socket was owned */
@@ -373,6 +379,15 @@ enum tsq_flags {
*/
};
+enum tsq_flags {
+ TSQF_THROTTLED = (1UL << TSQ_THROTTLED),
+ TSQF_QUEUED = (1UL << TSQ_QUEUED),
+ TCPF_TSQ_DEFERRED = (1UL << TCP_TSQ_DEFERRED),
+ TCPF_WRITE_TIMER_DEFERRED = (1UL << TCP_WRITE_TIMER_DEFERRED),
+ TCPF_DELACK_TIMER_DEFERRED = (1UL << TCP_DELACK_TIMER_DEFERRED),
+ TCPF_MTU_REDUCED_DEFERRED = (1UL << TCP_MTU_REDUCED_DEFERRED),
+};
+
static inline struct tcp_sock *tcp_sk(const struct sock *sk)
{
return (struct tcp_sock *)sk;
@@ -427,4 +442,6 @@ static inline void tcp_saved_syn_free(struct tcp_sock *tp)
tp->saved_syn = NULL;
}
+struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk);
+
#endif /* _LINUX_TCP_H */