1 files changed, 0 insertions, 129 deletions
diff --git a/pkg/sentry/fsimpl/sys/sys.go b/pkg/sentry/fsimpl/sys/sys.go
deleted file mode 100644
index 9c8e63783..000000000
--- a/pkg/sentry/fsimpl/sys/sys.go
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright 2019 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 sys implements sysfs.
-package sys
-
-import (
-	"bytes"
-	"fmt"
-
-	"gvisor.dev/gvisor/pkg/abi/linux"
-	"gvisor.dev/gvisor/pkg/context"
-	"gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs"
-	"gvisor.dev/gvisor/pkg/sentry/kernel"
-	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
-	"gvisor.dev/gvisor/pkg/sentry/vfs"
-	"gvisor.dev/gvisor/pkg/syserror"
-)
-
-// Name is the default filesystem name.
-const Name = "sysfs"
-
-// FilesystemType implements vfs.FilesystemType.
-type FilesystemType struct{}
-
-// filesystem implements vfs.FilesystemImpl.
-type filesystem struct {
-	kernfs.Filesystem
-}
-
-// GetFilesystem implements vfs.FilesystemType.GetFilesystem.
-func (FilesystemType) GetFilesystem(ctx context.Context, vfsObj *vfs.VirtualFilesystem, creds *auth.Credentials, source string, opts vfs.GetFilesystemOptions) (*vfs.Filesystem, *vfs.Dentry, error) {
-	fs := &filesystem{}
-	fs.Filesystem.Init(vfsObj)
-	k := kernel.KernelFromContext(ctx)
-	maxCPUCores := k.ApplicationCores()
-	defaultSysDirMode := linux.FileMode(0755)
-
-	root := fs.newDir(creds, defaultSysDirMode, map[string]*kernfs.Dentry{
-		"block": fs.newDir(creds, defaultSysDirMode, nil),
-		"bus":   fs.newDir(creds, defaultSysDirMode, nil),
-		"class": fs.newDir(creds, defaultSysDirMode, map[string]*kernfs.Dentry{
-			"power_supply": fs.newDir(creds, defaultSysDirMode, nil),
-		}),
-		"dev": fs.newDir(creds, defaultSysDirMode, nil),
-		"devices": fs.newDir(creds, defaultSysDirMode, map[string]*kernfs.Dentry{
-			"system": fs.newDir(creds, defaultSysDirMode, map[string]*kernfs.Dentry{
-				"cpu": fs.newDir(creds, defaultSysDirMode, map[string]*kernfs.Dentry{
-					"online":   fs.newCPUFile(creds, maxCPUCores, linux.FileMode(0444)),
-					"possible": fs.newCPUFile(creds, maxCPUCores, linux.FileMode(0444)),
-					"present":  fs.newCPUFile(creds, maxCPUCores, linux.FileMode(0444)),
-				}),
-			}),
-		}),
-		"firmware": fs.newDir(creds, defaultSysDirMode, nil),
-		"fs":       fs.newDir(creds, defaultSysDirMode, nil),
-		"kernel":   fs.newDir(creds, defaultSysDirMode, nil),
-		"module":   fs.newDir(creds, defaultSysDirMode, nil),
-		"power":    fs.newDir(creds, defaultSysDirMode, nil),
-	})
-	return fs.VFSFilesystem(), root.VFSDentry(), nil
-}
-
-// dir implements kernfs.Inode.
-type dir struct {
-	kernfs.InodeAttrs
-	kernfs.InodeNoDynamicLookup
-	kernfs.InodeNotSymlink
-	kernfs.InodeDirectoryNoNewChildren
-
-	kernfs.OrderedChildren
-	dentry kernfs.Dentry
-}
-
-func (fs *filesystem) newDir(creds *auth.Credentials, mode linux.FileMode, contents map[string]*kernfs.Dentry) *kernfs.Dentry {
-	d := &dir{}
-	d.InodeAttrs.Init(creds, fs.NextIno(), linux.ModeDirectory|0755)
-	d.OrderedChildren.Init(kernfs.OrderedChildrenOptions{})
-	d.dentry.Init(d)
-
-	d.IncLinks(d.OrderedChildren.Populate(&d.dentry, contents))
-
-	return &d.dentry
-}
-
-// SetStat implements Inode.SetStat not allowing inode attributes to be changed.
-func (*dir) SetStat(*vfs.Filesystem, *auth.Credentials, vfs.SetStatOptions) error {
-	return syserror.EPERM
-}
-
-// Open implements kernfs.Inode.Open.
-func (d *dir) Open(rp *vfs.ResolvingPath, vfsd *vfs.Dentry, opts vfs.OpenOptions) (*vfs.FileDescription, error) {
-	fd := &kernfs.GenericDirectoryFD{}
-	if err := fd.Init(rp.Mount(), vfsd, &d.OrderedChildren, &opts); err != nil {
-		return nil, err
-	}
-	return fd.VFSFileDescription(), nil
-}
-
-// cpuFile implements kernfs.Inode.
-type cpuFile struct {
-	kernfs.DynamicBytesFile
-	maxCores uint
-}
-
-// Generate implements vfs.DynamicBytesSource.Generate.
-func (c *cpuFile) Generate(ctx context.Context, buf *bytes.Buffer) error {
-	fmt.Fprintf(buf, "0-%d", c.maxCores-1)
-	return nil
-}
-
-func (fs *filesystem) newCPUFile(creds *auth.Credentials, maxCores uint, mode linux.FileMode) *kernfs.Dentry {
-	c := &cpuFile{maxCores: maxCores}
-	c.DynamicBytesFile.Init(creds, fs.NextIno(), c, mode)
-	d := &kernfs.Dentry{}
-	d.Init(c)
-	return d
-}