mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-12-11 17:04:22 -05:00
41 lines
705 B
Go
41 lines
705 B
Go
/*
|
|
Copyright (c) Edgeless Systems GmbH
|
|
|
|
SPDX-License-Identifier: AGPL-3.0-only
|
|
*/
|
|
|
|
package vtpm
|
|
|
|
import (
|
|
"io"
|
|
|
|
"github.com/google/go-tpm/tpm2"
|
|
)
|
|
|
|
// TPMOpenFunc opens a TPM device.
|
|
type TPMOpenFunc func() (io.ReadWriteCloser, error)
|
|
|
|
// OpenVTPM opens the vTPM at `TPMPath`.
|
|
func OpenVTPM() (io.ReadWriteCloser, error) {
|
|
return tpm2.OpenTPM()
|
|
}
|
|
|
|
type nopTPM struct{}
|
|
|
|
// OpenNOPTPM returns a NOP io.ReadWriteCloser that can be used as a TPM.
|
|
func OpenNOPTPM() (io.ReadWriteCloser, error) {
|
|
return &nopTPM{}, nil
|
|
}
|
|
|
|
func (t nopTPM) Read(p []byte) (int, error) {
|
|
return len(p), nil
|
|
}
|
|
|
|
func (t nopTPM) Write(p []byte) (int, error) {
|
|
return len(p), nil
|
|
}
|
|
|
|
func (t nopTPM) Close() error {
|
|
return nil
|
|
}
|