diff options
| author | Nayana Bidari <nybidari@google.com> | 2021-01-28 20:05:49 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-01-28 20:08:23 -0800 |
| commit | ff4fc42784cfbc271f55da36da84d39cf9d7bb7d (patch) | |
| tree | 2ecdbfa00ab1390bbe8c93624d6e59ac65e937c1 /pkg/tcpip/stack | |
| parent | b81b5883c747dcd019a228e109dbe52514710a88 (diff) | |
RACK: Update reorder window.
After receiving an ACK(cumulative or selective), RACK will update the reorder
window which is used as a settling time before marking the packet as lost.
This change will add an init function to initialize the variables in RACK and
also store the reference to sender in rackControl.
The reorder window is calculated as per rfc:
https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2 Step 4.
PiperOrigin-RevId: 354453528
Diffstat (limited to 'pkg/tcpip/stack')
| -rw-r--r-- | pkg/tcpip/stack/stack.go | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go index e56183e71..119c4c505 100644 --- a/pkg/tcpip/stack/stack.go +++ b/pkg/tcpip/stack/stack.go @@ -76,12 +76,16 @@ type TCPCubicState struct { // TCPRACKState is used to hold a copy of the internal RACK state when the // TCPProbeFunc is invoked. type TCPRACKState struct { - XmitTime time.Time - EndSequence seqnum.Value - FACK seqnum.Value - RTT time.Duration - Reord bool - DSACKSeen bool + XmitTime time.Time + EndSequence seqnum.Value + FACK seqnum.Value + RTT time.Duration + Reord bool + DSACKSeen bool + ReoWnd time.Duration + ReoWndIncr uint8 + ReoWndPersist int8 + RTTSeq seqnum.Value } // TCPEndpointID is the unique 4 tuple that identifies a given endpoint. |