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// Copyright 2018 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 inet
// TestStack is a dummy implementation of Stack for tests.
type TestStack struct {
InterfacesMap map[int32]Interface
InterfaceAddrsMap map[int32][]InterfaceAddr
SupportsIPv6Flag bool
TCPRecvBufSize TCPBufferSize
TCPSendBufSize TCPBufferSize
TCPSACKFlag bool
}
// NewTestStack returns a TestStack with no network interfaces. The value of
// all other options is unspecified; tests that rely on specific values must
// set them explicitly.
func NewTestStack() *TestStack {
return &TestStack{
InterfacesMap: make(map[int32]Interface),
InterfaceAddrsMap: make(map[int32][]InterfaceAddr),
}
}
// Interfaces implements Stack.Interfaces.
func (s *TestStack) Interfaces() map[int32]Interface {
return s.InterfacesMap
}
// InterfaceAddrs implements Stack.InterfaceAddrs.
func (s *TestStack) InterfaceAddrs() map[int32][]InterfaceAddr {
return s.InterfaceAddrsMap
}
// SupportsIPv6 implements Stack.SupportsIPv6.
func (s *TestStack) SupportsIPv6() bool {
return s.SupportsIPv6Flag
}
// TCPReceiveBufferSize implements Stack.TCPReceiveBufferSize.
func (s *TestStack) TCPReceiveBufferSize() (TCPBufferSize, error) {
return s.TCPRecvBufSize, nil
}
// SetTCPReceiveBufferSize implements Stack.SetTCPReceiveBufferSize.
func (s *TestStack) SetTCPReceiveBufferSize(size TCPBufferSize) error {
s.TCPRecvBufSize = size
return nil
}
// TCPSendBufferSize implements Stack.TCPSendBufferSize.
func (s *TestStack) TCPSendBufferSize() (TCPBufferSize, error) {
return s.TCPSendBufSize, nil
}
// SetTCPSendBufferSize implements Stack.SetTCPSendBufferSize.
func (s *TestStack) SetTCPSendBufferSize(size TCPBufferSize) error {
s.TCPSendBufSize = size
return nil
}
// TCPSACKEnabled implements Stack.TCPSACKEnabled.
func (s *TestStack) TCPSACKEnabled() (bool, error) {
return s.TCPSACKFlag, nil
}
// SetTCPSACKEnabled implements Stack.SetTCPSACKEnabled.
func (s *TestStack) SetTCPSACKEnabled(enabled bool) error {
s.TCPSACKFlag = enabled
return nil
}
// Statistics implements inet.Stack.Statistics.
func (s *TestStack) Statistics(stat interface{}, arg string) error {
return nil
}
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