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Diffstat (limited to 'pkg/tcpip/transport/tcp/accept.go')
-rw-r--r--pkg/tcpip/transport/tcp/accept.go8
1 files changed, 6 insertions, 2 deletions
diff --git a/pkg/tcpip/transport/tcp/accept.go b/pkg/tcpip/transport/tcp/accept.go
index 844959fa0..1dd00d026 100644
--- a/pkg/tcpip/transport/tcp/accept.go
+++ b/pkg/tcpip/transport/tcp/accept.go
@@ -297,6 +297,7 @@ func (l *listenContext) createEndpointAndPerformHandshake(s *segment, opts *head
return nil, err
}
ep.mu.Lock()
+ ep.stack.Stats().TCP.CurrentEstablished.Increment()
ep.state = StateEstablished
ep.mu.Unlock()
@@ -399,6 +400,9 @@ func (e *endpoint) acceptQueueIsFull() bool {
// handleListenSegment is called when a listening endpoint receives a segment
// and needs to handle it.
func (e *endpoint) handleListenSegment(ctx *listenContext, s *segment) {
+ // TODO(b/143300739): Use the userMSS of the listening socket
+ // for accepted sockets.
+
switch s.flags {
case header.TCPFlagSyn:
opts := parseSynSegmentOptions(s)
@@ -433,13 +437,12 @@ func (e *endpoint) handleListenSegment(ctx *listenContext, s *segment) {
//
// Enable Timestamp option if the original syn did have
// the timestamp option specified.
- mss := mssForRoute(&s.route)
synOpts := header.TCPSynOptions{
WS: -1,
TS: opts.TS,
TSVal: tcpTimeStamp(timeStampOffset()),
TSEcr: opts.TSVal,
- MSS: uint16(mss),
+ MSS: mssForRoute(&s.route),
}
e.sendSynTCP(&s.route, s.id, e.ttl, e.sendTOS, header.TCPFlagSyn|header.TCPFlagAck, cookie, s.sequenceNumber+1, ctx.rcvWnd, synOpts)
e.stack.Stats().TCP.ListenOverflowSynCookieSent.Increment()
@@ -519,6 +522,7 @@ func (e *endpoint) handleListenSegment(ctx *listenContext, s *segment) {
n.tsOffset = 0
// Switch state to connected.
+ n.stack.Stats().TCP.CurrentEstablished.Increment()
n.state = StateEstablished
// Do the delivery in a separate goroutine so