diff options
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 9a3cf51eab78..0a660075add5 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -943,6 +943,12 @@ static unsigned int tcp_synack_options(const struct sock *sk, opts->options |= OPTION_TS; opts->tsval = tcp_skb_timestamp_ts(tcp_rsk(req)->req_usec_ts, skb) + tcp_rsk(req)->ts_off; + if (!tcp_rsk(req)->snt_tsval_first) { + if (!opts->tsval) + opts->tsval = ~0U; + tcp_rsk(req)->snt_tsval_first = opts->tsval; + } + WRITE_ONCE(tcp_rsk(req)->snt_tsval_last, opts->tsval); opts->tsecr = READ_ONCE(req->ts_recent); remaining -= TCPOLEN_TSTAMP_ALIGNED; } |