Automated rollback of changelist 336185457

PiperOrigin-RevId: 336304024

1 files changed, 0 insertions, 124 deletions

diff --git a/pkg/tcpip/link/pipe/pipe.go b/pkg/tcpip/link/pipe/pipe.go
deleted file mode 100644
index 76f563811..000000000
--- a/pkg/tcpip/link/pipe/pipe.go
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright 2020 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Package pipe provides the implementation of pipe-like data-link layer
-// endpoints. Such endpoints allow packets to be sent between two interfaces.
-package pipe
-
-import (
-	"gvisor.dev/gvisor/pkg/tcpip"
-	"gvisor.dev/gvisor/pkg/tcpip/buffer"
-	"gvisor.dev/gvisor/pkg/tcpip/header"
-	"gvisor.dev/gvisor/pkg/tcpip/stack"
-)
-
-var _ stack.LinkEndpoint = (*Endpoint)(nil)
-
-// New returns both ends of a new pipe.
-func New(linkAddr1, linkAddr2 tcpip.LinkAddress, capabilities stack.LinkEndpointCapabilities) (*Endpoint, *Endpoint) {
-	ep1 := &Endpoint{
-		linkAddr:     linkAddr1,
-		capabilities: capabilities,
-	}
-	ep2 := &Endpoint{
-		linkAddr:     linkAddr2,
-		linked:       ep1,
-		capabilities: capabilities,
-	}
-	ep1.linked = ep2
-	return ep1, ep2
-}
-
-// Endpoint is one end of a pipe.
-type Endpoint struct {
-	capabilities  stack.LinkEndpointCapabilities
-	linkAddr      tcpip.LinkAddress
-	dispatcher    stack.NetworkDispatcher
-	linked        *Endpoint
-	onWritePacket func(*stack.PacketBuffer)
-}
-
-// WritePacket implements stack.LinkEndpoint.
-func (e *Endpoint) WritePacket(r *stack.Route, _ *stack.GSO, proto tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) *tcpip.Error {
-	if !e.linked.IsAttached() {
-		return nil
-	}
-
-	// The pipe endpoint will accept all multicast/broadcast link traffic and only
-	// unicast traffic destined to itself.
-	if len(e.linked.linkAddr) != 0 &&
-		r.RemoteLinkAddress != e.linked.linkAddr &&
-		r.RemoteLinkAddress != header.EthernetBroadcastAddress &&
-		!header.IsMulticastEthernetAddress(r.RemoteLinkAddress) {
-		return nil
-	}
-
-	e.linked.dispatcher.DeliverNetworkPacket(e.linkAddr, r.RemoteLinkAddress, proto, stack.NewPacketBuffer(stack.PacketBufferOptions{
-		Data: buffer.NewVectorisedView(pkt.Size(), pkt.Views()),
-	}))
-
-	return nil
-}
-
-// WritePackets implements stack.LinkEndpoint.
-func (*Endpoint) WritePackets(*stack.Route, *stack.GSO, stack.PacketBufferList, tcpip.NetworkProtocolNumber) (int, *tcpip.Error) {
-	panic("not implemented")
-}
-
-// WriteRawPacket implements stack.LinkEndpoint.
-func (*Endpoint) WriteRawPacket(buffer.VectorisedView) *tcpip.Error {
-	panic("not implemented")
-}
-
-// Attach implements stack.LinkEndpoint.
-func (e *Endpoint) Attach(dispatcher stack.NetworkDispatcher) {
-	e.dispatcher = dispatcher
-}
-
-// IsAttached implements stack.LinkEndpoint.
-func (e *Endpoint) IsAttached() bool {
-	return e.dispatcher != nil
-}
-
-// Wait implements stack.LinkEndpoint.
-func (*Endpoint) Wait() {}
-
-// MTU implements stack.LinkEndpoint.
-func (*Endpoint) MTU() uint32 {
-	return header.IPv6MinimumMTU
-}
-
-// Capabilities implements stack.LinkEndpoint.
-func (e *Endpoint) Capabilities() stack.LinkEndpointCapabilities {
-	return e.capabilities
-}
-
-// MaxHeaderLength implements stack.LinkEndpoint.
-func (*Endpoint) MaxHeaderLength() uint16 {
-	return 0
-}
-
-// LinkAddress implements stack.LinkEndpoint.
-func (e *Endpoint) LinkAddress() tcpip.LinkAddress {
-	return e.linkAddr
-}
-
-// ARPHardwareType implements stack.LinkEndpoint.
-func (*Endpoint) ARPHardwareType() header.ARPHardwareType {
-	return header.ARPHardwareEther
-}
-
-// AddHeader implements stack.LinkEndpoint.
-func (*Endpoint) AddHeader(_, _ tcpip.LinkAddress, _ tcpip.NetworkProtocolNumber, _ *stack.PacketBuffer) {
-}