diff options
Diffstat (limited to 'pkg/tcpip/transport/tcp/snd.go')
| -rw-r--r-- | pkg/tcpip/transport/tcp/snd.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/pkg/tcpip/transport/tcp/snd.go b/pkg/tcpip/transport/tcp/snd.go index 1f9b1e0ef..8332a0179 100644 --- a/pkg/tcpip/transport/tcp/snd.go +++ b/pkg/tcpip/transport/tcp/snd.go @@ -417,6 +417,7 @@ func (s *sender) resendSegment() { s.fr.rescueRxt = seg.sequenceNumber.Add(seqnum.Size(seg.data.Size())) - 1 s.sendSegment(seg) s.ep.stack.Stats().TCP.FastRetransmit.Increment() + s.ep.stats.SendErrors.FastRetransmit.Increment() // Run SetPipe() as per RFC 6675 section 5 Step 4.4 s.SetPipe() @@ -435,6 +436,7 @@ func (s *sender) retransmitTimerExpired() bool { } s.ep.stack.Stats().TCP.Timeouts.Increment() + s.ep.stats.SendErrors.Timeouts.Increment() // Give up if we've waited more than a minute since the last resend. if s.rto >= 60*time.Second { @@ -664,7 +666,14 @@ func (s *sender) maybeSendSegment(seg *segment, limit int, end seqnum.Value) (se segEnd = seg.sequenceNumber.Add(1) // Transition to FIN-WAIT1 state since we're initiating an active close. s.ep.mu.Lock() - s.ep.state = StateFinWait1 + switch s.ep.state { + case StateCloseWait: + // We've already received a FIN and are now sending our own. The + // sender is now awaiting a final ACK for this FIN. + s.ep.state = StateLastAck + default: + s.ep.state = StateFinWait1 + } s.ep.mu.Unlock() } else { // We're sending a non-FIN segment. @@ -1181,6 +1190,7 @@ func (s *sender) handleRcvdSegment(seg *segment) { func (s *sender) sendSegment(seg *segment) *tcpip.Error { if !seg.xmitTime.IsZero() { s.ep.stack.Stats().TCP.Retransmits.Increment() + s.ep.stats.SendErrors.Retransmits.Increment() if s.sndCwnd < s.sndSsthresh { s.ep.stack.Stats().TCP.SlowStartRetransmits.Increment() } |