Method Readlink

pkg/sentry/fsimpl/fuse/inode.go:758–779

Readlink implements kernfs.Inode.Readlink.

(ctx context.Context, mnt *vfs.Mount)

// Readlink implements kernfs.Inode.Readlink.
func (i *inode) Readlink(ctx context.Context, mnt *vfs.Mount) (string, error) {
	i.attrMu.Lock()
	defer i.attrMu.Unlock()
	if i.filemode().FileType()&linux.S_IFLNK == 0 {
		return "", linuxerr.EINVAL
	}
	if len(i.link) == 0 {
		req := i.fs.conn.NewRequest(auth.CredentialsFromContext(ctx), pidFromContext(ctx), i.nodeID, linux.FUSE_READLINK, &linux.FUSEEmptyIn{})
		res, err := i.fs.conn.Call(ctx, req)
		if err != nil {
			return "", err
		}
		if err := res.Error(); err != nil {
			return "", err
		}
		i.link = string(res.data[res.hdr.SizeBytes():])
		if !mnt.Options().ReadOnly {
			i.attrTime = ktime.ZeroTime
		}
	}
	return i.link, nil
}

// Stat implements kernfs.Inode.Stat.
func (i *inode) Stat(ctx context.Context, fs *vfs.Filesystem, opts vfs.StatOptions) (linux.Statx, error) {