Dean Deng d9a3f5d0c7 Add permission checks to vfs2 truncate. ...

- Check write permission on truncate(2). Unlike ftruncate(2),
  truncate(2) fails if the user does not have write permissions
  on the file.
- For gofers under InteropModeShared, check file type before
  making a truncate request. We should fail early and avoid
  making an rpc when possible. Furthermore, depending on the
  remote host's failure may give us unexpected behavior--if the
  host converts the truncate request to an ftruncate syscall on
  an open fd, we will get EINVAL instead of EISDIR.

Updates #2923.

PiperOrigin-RevId: 322913569

2020-07-23 18:52:44 -07:00

..

BUILD

Implement POSIX locks

2020-06-17 10:04:26 -07:00

copy_up.go

Add //pkg/sentry/fsimpl/overlay.

2020-06-11 18:34:53 -07:00

directory.go

Implement Sync() to directories

2020-06-17 21:22:16 -07:00

filesystem.go

Add permission checks to vfs2 truncate.

2020-07-23 18:52:44 -07:00

non_directory.go

Add permission checks to vfs2 truncate.

2020-07-23 18:52:44 -07:00

overlay.go

Support inotify in vfs2 gofer fs.

2020-06-23 16:14:56 -07:00