diff options
Diffstat (limited to 'pkg/sentry/devices/memdev/memdev.go')
-rw-r--r-- | pkg/sentry/devices/memdev/memdev.go | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/pkg/sentry/devices/memdev/memdev.go b/pkg/sentry/devices/memdev/memdev.go deleted file mode 100644 index 5759900c4..000000000 --- a/pkg/sentry/devices/memdev/memdev.go +++ /dev/null @@ -1,59 +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 memdev implements "mem" character devices, as implemented in Linux -// by drivers/char/mem.c and drivers/char/random.c. -package memdev - -import ( - "gvisor.dev/gvisor/pkg/abi/linux" - "gvisor.dev/gvisor/pkg/context" - "gvisor.dev/gvisor/pkg/sentry/fsimpl/devtmpfs" - "gvisor.dev/gvisor/pkg/sentry/vfs" -) - -// Register registers all devices implemented by this package in vfsObj. -func Register(vfsObj *vfs.VirtualFilesystem) error { - for minor, dev := range map[uint32]vfs.Device{ - nullDevMinor: nullDevice{}, - zeroDevMinor: zeroDevice{}, - fullDevMinor: fullDevice{}, - randomDevMinor: randomDevice{}, - urandomDevMinor: randomDevice{}, - } { - if err := vfsObj.RegisterDevice(vfs.CharDevice, linux.MEM_MAJOR, minor, dev, &vfs.RegisterDeviceOptions{ - GroupName: "mem", - }); err != nil { - return err - } - } - return nil -} - -// CreateDevtmpfsFiles creates device special files in dev representing all -// devices implemented by this package. -func CreateDevtmpfsFiles(ctx context.Context, dev *devtmpfs.Accessor) error { - for minor, name := range map[uint32]string{ - nullDevMinor: "null", - zeroDevMinor: "zero", - fullDevMinor: "full", - randomDevMinor: "random", - urandomDevMinor: "urandom", - } { - if err := dev.CreateDeviceFile(ctx, name, vfs.CharDevice, linux.MEM_MAJOR, minor, 0666 /* mode */); err != nil { - return err - } - } - return nil -} |