github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/pkg/sentry/syscalls/linux/sys_stat_amd64.go (about)

     1  // Copyright 2020 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  // +build amd64
    16  
    17  package linux
    18  
    19  import (
    20  	"github.com/SagerNet/gvisor/pkg/abi/linux"
    21  	"github.com/SagerNet/gvisor/pkg/sentry/fs"
    22  	"github.com/SagerNet/gvisor/pkg/sentry/kernel"
    23  )
    24  
    25  // LINT.IfChange
    26  
    27  func statFromAttrs(t *kernel.Task, sattr fs.StableAttr, uattr fs.UnstableAttr) linux.Stat {
    28  	return linux.Stat{
    29  		Dev:     sattr.DeviceID,
    30  		Ino:     sattr.InodeID,
    31  		Nlink:   uattr.Links,
    32  		Mode:    sattr.Type.LinuxType() | uint32(uattr.Perms.LinuxMode()),
    33  		UID:     uint32(uattr.Owner.UID.In(t.UserNamespace()).OrOverflow()),
    34  		GID:     uint32(uattr.Owner.GID.In(t.UserNamespace()).OrOverflow()),
    35  		Rdev:    uint64(linux.MakeDeviceID(sattr.DeviceFileMajor, sattr.DeviceFileMinor)),
    36  		Size:    uattr.Size,
    37  		Blksize: sattr.BlockSize,
    38  		Blocks:  uattr.Usage / 512,
    39  		ATime:   uattr.AccessTime.Timespec(),
    40  		MTime:   uattr.ModificationTime.Timespec(),
    41  		CTime:   uattr.StatusChangeTime.Timespec(),
    42  	}
    43  }
    44  
    45  // LINT.ThenChange(vfs2/stat_amd64.go)