50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
// 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 disklayout
|
|
|
|
import "gvisor.dev/gvisor/pkg/sentry/fs"
|
|
|
|
// DirentOld represents the old directory entry struct which does not contain
|
|
// the file type. This emulates Linux's ext4_dir_entry struct.
|
|
//
|
|
// Note: This struct can be of variable size on disk. The one described below
|
|
// is of maximum size and the FileName beyond NameLength bytes might contain
|
|
// garbage.
|
|
type DirentOld struct {
|
|
InodeNumber uint32
|
|
RecordLength uint16
|
|
NameLength uint16
|
|
FileNameRaw [MaxFileName]byte
|
|
}
|
|
|
|
// Compiles only if DirentOld implements Dirent.
|
|
var _ Dirent = (*DirentOld)(nil)
|
|
|
|
// Inode implements Dirent.Inode.
|
|
func (d *DirentOld) Inode() uint32 { return d.InodeNumber }
|
|
|
|
// RecordSize implements Dirent.RecordSize.
|
|
func (d *DirentOld) RecordSize() uint16 { return d.RecordLength }
|
|
|
|
// FileName implements Dirent.FileName.
|
|
func (d *DirentOld) FileName() string {
|
|
return string(d.FileNameRaw[:d.NameLength])
|
|
}
|
|
|
|
// FileType implements Dirent.FileType.
|
|
func (d *DirentOld) FileType() (fs.InodeType, bool) {
|
|
return fs.Anonymous, false
|
|
}
|