github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/pkg/sentry/kernel/kernel_state.go (about)

     1  // Copyright 2018 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package kernel
    16  
    17  import (
    18  	"github.com/SagerNet/gvisor/pkg/sentry/device"
    19  	"github.com/SagerNet/gvisor/pkg/tcpip"
    20  )
    21  
    22  // saveDanglingEndpoints is invoked by stateify.
    23  func (k *Kernel) saveDanglingEndpoints() []tcpip.Endpoint {
    24  	return tcpip.GetDanglingEndpoints()
    25  }
    26  
    27  // loadDanglingEndpoints is invoked by stateify.
    28  func (k *Kernel) loadDanglingEndpoints(es []tcpip.Endpoint) {
    29  	for _, e := range es {
    30  		tcpip.AddDanglingEndpoint(e)
    31  	}
    32  }
    33  
    34  // saveDeviceRegistry is invoked by stateify.
    35  func (k *Kernel) saveDeviceRegistry() *device.Registry {
    36  	return device.SimpleDevices
    37  }
    38  
    39  // loadDeviceRegistry is invoked by stateify.
    40  func (k *Kernel) loadDeviceRegistry(r *device.Registry) {
    41  	device.SimpleDevices.LoadFrom(r)
    42  }