diff options
Diffstat (limited to 'pkg/tcpip/stack/stack.go')
| -rw-r--r-- | pkg/tcpip/stack/stack.go | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go index c82822ee2..9d8e8cda5 100644 --- a/pkg/tcpip/stack/stack.go +++ b/pkg/tcpip/stack/stack.go @@ -102,6 +102,18 @@ type TCPFastRecoveryState struct { // MaxCwnd is the maximum value we are permitted to grow the congestion // window during recovery. This is set at the time we enter recovery. MaxCwnd int + + // HighRxt is the highest sequence number which has been retransmitted + // during the current loss recovery phase. + // See: RFC 6675 Section 2 for details. + HighRxt seqnum.Value + + // RescueRxt is the highest sequence number which has been + // optimistically retransmitted to prevent stalling of the ACK clock + // when there is loss at the end of the window and no new data is + // available for transmission. + // See: RFC 6675 Section 2 for details. + RescueRxt seqnum.Value } // TCPReceiverState holds a copy of the internal state of the receiver for @@ -1024,7 +1036,7 @@ func (s *Stack) TransportProtocolInstance(num tcpip.TransportProtocolNumber) Tra // AddTCPProbe installs a probe function that will be invoked on every segment // received by a given TCP endpoint. The probe function is passed a copy of the -// TCP endpoint state. +// TCP endpoint state before and after processing of the segment. // // NOTE: TCPProbe is added only to endpoints created after this call. Endpoints // created prior to this call will not call the probe function. |