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| author | gVisor bot <gvisor-bot@google.com> | 2020-09-29 06:34:47 +0000 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-09-29 06:34:47 +0000 |
| commit | c56633d8504615721910f62b9fd236ce4a6a8ee7 (patch) | |
| tree | fca79af6281288732e524c150fed84e6de39a09f /pkg/tcpip | |
| parent | d99063318481128c2151cd1901bff5b4aa684c3e (diff) | |
| parent | 028e045da93b7c1c26417e80e4b4e388b86a713d (diff) | |
Merge release-20200921.0-59-g028e045da (automated)
Diffstat (limited to 'pkg/tcpip')
| -rw-r--r-- | pkg/tcpip/transport/tcp/rcv.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/pkg/tcpip/transport/tcp/rcv.go b/pkg/tcpip/transport/tcp/rcv.go index 4aafb4d22..48bf196d8 100644 --- a/pkg/tcpip/transport/tcp/rcv.go +++ b/pkg/tcpip/transport/tcp/rcv.go @@ -88,6 +88,13 @@ func (r *receiver) acceptable(segSeq seqnum.Value, segLen seqnum.Size) bool { // segments to send. func (r *receiver) getSendParams() (rcvNxt seqnum.Value, rcvWnd seqnum.Size) { avail := wndFromSpace(r.ep.receiveBufferAvailable()) + if avail == 0 { + // We have no space available to accept any data, move to zero window + // state. + r.rcvWnd = 0 + return r.rcvNxt, 0 + } + acc := r.rcvNxt.Add(seqnum.Size(avail)) newWnd := r.rcvNxt.Size(acc) curWnd := r.rcvNxt.Size(r.rcvAcc) |