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Diffstat (limited to 'pkg/sentry/socket/rpcinet/stack.go')
-rw-r--r--pkg/sentry/socket/rpcinet/stack.go167
1 files changed, 0 insertions, 167 deletions
diff --git a/pkg/sentry/socket/rpcinet/stack.go b/pkg/sentry/socket/rpcinet/stack.go
deleted file mode 100644
index 5dcb6b455..000000000
--- a/pkg/sentry/socket/rpcinet/stack.go
+++ /dev/null
@@ -1,167 +0,0 @@
-// 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 rpcinet
-
-import (
- "fmt"
- "syscall"
-
- "gvisor.dev/gvisor/pkg/sentry/inet"
- "gvisor.dev/gvisor/pkg/sentry/socket/hostinet"
- "gvisor.dev/gvisor/pkg/sentry/socket/rpcinet/conn"
- "gvisor.dev/gvisor/pkg/sentry/socket/rpcinet/notifier"
- "gvisor.dev/gvisor/pkg/syserr"
- "gvisor.dev/gvisor/pkg/unet"
-)
-
-// Stack implements inet.Stack for RPC backed sockets.
-type Stack struct {
- interfaces map[int32]inet.Interface
- interfaceAddrs map[int32][]inet.InterfaceAddr
- routes []inet.Route
- rpcConn *conn.RPCConnection
- notifier *notifier.Notifier
-}
-
-// NewStack returns a Stack containing the current state of the host network
-// stack.
-func NewStack(fd int32) (*Stack, error) {
- sock, err := unet.NewSocket(int(fd))
- if err != nil {
- return nil, err
- }
-
- stack := &Stack{
- interfaces: make(map[int32]inet.Interface),
- interfaceAddrs: make(map[int32][]inet.InterfaceAddr),
- rpcConn: conn.NewRPCConnection(sock),
- }
-
- var e error
- stack.notifier, e = notifier.NewRPCNotifier(stack.rpcConn)
- if e != nil {
- return nil, e
- }
-
- links, err := stack.DoNetlinkRouteRequest(syscall.RTM_GETLINK)
- if err != nil {
- return nil, fmt.Errorf("RTM_GETLINK failed: %v", err)
- }
-
- addrs, err := stack.DoNetlinkRouteRequest(syscall.RTM_GETADDR)
- if err != nil {
- return nil, fmt.Errorf("RTM_GETADDR failed: %v", err)
- }
-
- e = hostinet.ExtractHostInterfaces(links, addrs, stack.interfaces, stack.interfaceAddrs)
- if e != nil {
- return nil, e
- }
-
- routes, err := stack.DoNetlinkRouteRequest(syscall.RTM_GETROUTE)
- if err != nil {
- return nil, fmt.Errorf("RTM_GETROUTE failed: %v", err)
- }
-
- stack.routes, e = hostinet.ExtractHostRoutes(routes)
- if e != nil {
- return nil, e
- }
-
- return stack, nil
-}
-
-// RPCReadFile will execute the ReadFile helper RPC method which avoids the
-// common pattern of open(2), read(2), close(2) by doing all three operations
-// as a single RPC. It will read the entire file or return EFBIG if the file
-// was too large.
-func (s *Stack) RPCReadFile(path string) ([]byte, *syserr.Error) {
- return s.rpcConn.RPCReadFile(path)
-}
-
-// RPCWriteFile will execute the WriteFile helper RPC method which avoids the
-// common pattern of open(2), write(2), write(2), close(2) by doing all
-// operations as a single RPC.
-func (s *Stack) RPCWriteFile(path string, data []byte) (int64, *syserr.Error) {
- return s.rpcConn.RPCWriteFile(path, data)
-}
-
-// Interfaces implements inet.Stack.Interfaces.
-func (s *Stack) Interfaces() map[int32]inet.Interface {
- interfaces := make(map[int32]inet.Interface)
- for k, v := range s.interfaces {
- interfaces[k] = v
- }
- return interfaces
-}
-
-// InterfaceAddrs implements inet.Stack.InterfaceAddrs.
-func (s *Stack) InterfaceAddrs() map[int32][]inet.InterfaceAddr {
- addrs := make(map[int32][]inet.InterfaceAddr)
- for k, v := range s.interfaceAddrs {
- addrs[k] = append([]inet.InterfaceAddr(nil), v...)
- }
- return addrs
-}
-
-// SupportsIPv6 implements inet.Stack.SupportsIPv6.
-func (s *Stack) SupportsIPv6() bool {
- panic("rpcinet handles procfs directly this method should not be called")
-}
-
-// TCPReceiveBufferSize implements inet.Stack.TCPReceiveBufferSize.
-func (s *Stack) TCPReceiveBufferSize() (inet.TCPBufferSize, error) {
- panic("rpcinet handles procfs directly this method should not be called")
-}
-
-// SetTCPReceiveBufferSize implements inet.Stack.SetTCPReceiveBufferSize.
-func (s *Stack) SetTCPReceiveBufferSize(size inet.TCPBufferSize) error {
- panic("rpcinet handles procfs directly this method should not be called")
-
-}
-
-// TCPSendBufferSize implements inet.Stack.TCPSendBufferSize.
-func (s *Stack) TCPSendBufferSize() (inet.TCPBufferSize, error) {
- panic("rpcinet handles procfs directly this method should not be called")
-
-}
-
-// SetTCPSendBufferSize implements inet.Stack.SetTCPSendBufferSize.
-func (s *Stack) SetTCPSendBufferSize(size inet.TCPBufferSize) error {
- panic("rpcinet handles procfs directly this method should not be called")
-}
-
-// TCPSACKEnabled implements inet.Stack.TCPSACKEnabled.
-func (s *Stack) TCPSACKEnabled() (bool, error) {
- panic("rpcinet handles procfs directly this method should not be called")
-}
-
-// SetTCPSACKEnabled implements inet.Stack.SetTCPSACKEnabled.
-func (s *Stack) SetTCPSACKEnabled(enabled bool) error {
- panic("rpcinet handles procfs directly this method should not be called")
-}
-
-// Statistics implements inet.Stack.Statistics.
-func (s *Stack) Statistics(stat interface{}, arg string) error {
- return syserr.ErrEndpointOperation.ToError()
-}
-
-// RouteTable implements inet.Stack.RouteTable.
-func (s *Stack) RouteTable() []inet.Route {
- return append([]inet.Route(nil), s.routes...)
-}
-
-// Resume implements inet.Stack.Resume.
-func (s *Stack) Resume() {}