diff options
Diffstat (limited to 'pkg/tcpip/transport/tcp/snd.go')
| -rw-r--r-- | pkg/tcpip/transport/tcp/snd.go | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/pkg/tcpip/transport/tcp/snd.go b/pkg/tcpip/transport/tcp/snd.go index 122c52f32..5c9e76fa1 100644 --- a/pkg/tcpip/transport/tcp/snd.go +++ b/pkg/tcpip/transport/tcp/snd.go @@ -635,14 +635,15 @@ func (s *sender) checkDuplicateAck(seg *segment) (rtx bool) { // updating the send-related state. func (s *sender) handleRcvdSegment(seg *segment) { // Check if we can extract an RTT measurement from this ack. - if !s.ep.sendTSOk && s.rttMeasureSeqNum.LessThan(seg.ackNumber) { + if !seg.parsedOptions.TS && s.rttMeasureSeqNum.LessThan(seg.ackNumber) { s.updateRTO(time.Now().Sub(s.rttMeasureTime)) s.rttMeasureSeqNum = s.sndNxt } // Update Timestamp if required. See RFC7323, section-4.3. - s.ep.updateRecentTimestamp(seg.parsedOptions.TSVal, s.maxSentAck, seg.sequenceNumber) - + if s.ep.sendTSOk && seg.parsedOptions.TS { + s.ep.updateRecentTimestamp(seg.parsedOptions.TSVal, s.maxSentAck, seg.sequenceNumber) + } // Count the duplicates and do the fast retransmit if needed. rtx := s.checkDuplicateAck(seg) |