Automated rollback of changelist 261191548

PiperOrigin-RevId: 261373749

1 files changed, 0 insertions, 30 deletions

diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go
index 7c31cf493..6156c3f46 100644
--- a/pkg/tcpip/stack/stack.go
+++ b/pkg/tcpip/stack/stack.go
@@ -208,10 +208,6 @@ type TCPSenderState struct {
 
 	// Cubic holds the state related to CUBIC congestion control.
 	Cubic TCPCubicState
-
-	// MSS is the size of the largest segment that can be sent without
-	// fragmentation.
-	MSS int
 }
 
 // TCPSACKInfo holds TCP SACK related information for a given TCP endpoint.
@@ -224,9 +220,6 @@ type TCPSACKInfo struct {
 	// from the peer endpoint.
 	ReceivedBlocks []header.SACKBlock
 
-	// Sacked is the current number of bytes held in the SACK scoreboard.
-	Sacked seqnum.Size
-
 	// MaxSACKED is the highest sequence number that has been SACKED
 	// by the peer.
 	MaxSACKED seqnum.Value
@@ -276,14 +269,6 @@ type TCPEndpointState struct {
 	// ID is a copy of the TransportEndpointID for the endpoint.
 	ID TCPEndpointID
 
-	// ProtocolState denotes the TCP state the endpoint is currently
-	// in, encoded in a netstack-specific manner. Should be translated
-	// to the Linux ABI before exposing to userspace.
-	ProtocolState uint32
-
-	// AMSS is the MSS advertised to the peer by this endpoint.
-	AMSS uint16
-
 	// SegTime denotes the absolute time when this segment was received.
 	SegTime time.Time
 
@@ -301,18 +286,6 @@ type TCPEndpointState struct {
 	// RcvClosed if true, indicates the endpoint has been closed for reading.
 	RcvClosed bool
 
-	// RcvLastAck is the time of receipt of the last packet with the
-	// ACK flag set.
-	RcvLastAckNanos int64
-
-	// RcvLastData is the time of reciept of the last packet
-	// containing data.
-	RcvLastDataNanos int64
-
-	// RcvMSS is the size of the largest segment the receiver is willing to
-	// accept, not including TCP headers and options.
-	RcvMSS int
-
 	// SendTSOk is used to indicate when the TS Option has been negotiated.
 	// When sendTSOk is true every non-RST segment should carry a TS as per
 	// RFC7323#section-1.1.
@@ -353,9 +326,6 @@ type TCPEndpointState struct {
 	// SndMTU is the smallest MTU seen in the control packets received.
 	SndMTU int
 
-	// MaxOptionSize is the maximum size of TCP options.
-	MaxOptionSize int
-
 	// Receiver holds variables related to the TCP receiver for the endpoint.
 	Receiver TCPReceiverState