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-rw-r--r--include/linux/tcp.h3
-rw-r--r--include/uapi/linux/tcp.h1
-rw-r--r--net/core/skbuff.c2
-rw-r--r--net/ipv4/tcp.c6
4 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 527d668a5275..14b62d7df942 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -484,7 +484,8 @@ 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);
+struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk,
+ const struct sk_buff *orig_skb);
static inline u16 tcp_mss_clamp(const struct tcp_sock *tp, u16 mss)
{
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index f2acb2566333..cfcb10b75483 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -313,6 +313,7 @@ enum {
TCP_NLA_SRTT, /* smoothed RTT in usecs */
TCP_NLA_TIMEOUT_REHASH, /* Timeout-triggered rehash attempts */
TCP_NLA_BYTES_NOTSENT, /* Bytes in write queue not yet sent */
+ TCP_NLA_EDT, /* Earliest departure time (CLOCK_MONOTONIC) */
};
/* for TCP_MD5SIG socket option */
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b8afefe6f6b6..4e2edfbe0e19 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4692,7 +4692,7 @@ void __skb_tstamp_tx(struct sk_buff *orig_skb,
if ((sk->sk_tsflags & SOF_TIMESTAMPING_OPT_STATS) &&
sk->sk_protocol == IPPROTO_TCP &&
sk->sk_type == SOCK_STREAM) {
- skb = tcp_get_timestamping_opt_stats(sk);
+ skb = tcp_get_timestamping_opt_stats(sk, orig_skb);
opt_stats = true;
} else
#endif
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 4afec552f211..c06d2bfd2ec4 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3501,10 +3501,12 @@ static size_t tcp_opt_stats_get_size(void)
nla_total_size(sizeof(u32)) + /* TCP_NLA_SRTT */
nla_total_size(sizeof(u16)) + /* TCP_NLA_TIMEOUT_REHASH */
nla_total_size(sizeof(u32)) + /* TCP_NLA_BYTES_NOTSENT */
+ nla_total_size_64bit(sizeof(u64)) + /* TCP_NLA_EDT */
0;
}
-struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk)
+struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk,
+ const struct sk_buff *orig_skb)
{
const struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *stats;
@@ -3558,6 +3560,8 @@ struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk)
nla_put_u16(stats, TCP_NLA_TIMEOUT_REHASH, tp->timeout_rehash);
nla_put_u32(stats, TCP_NLA_BYTES_NOTSENT,
max_t(int, 0, tp->write_seq - tp->snd_nxt));
+ nla_put_u64_64bit(stats, TCP_NLA_EDT, orig_skb->skb_mstamp_ns,
+ TCP_NLA_PAD);
return stats;
}