tss_esapi/constants/
startup_type.rs

1// Copyright 2021 Contributors to the Parsec project.
2// SPDX-License-Identifier: Apache-2.0
3use crate::{
4    constants::tss::{TPM2_SU_CLEAR, TPM2_SU_STATE},
5    tss2_esys::TPM2_SU,
6    Error, Result, WrapperErrorKind,
7};
8use log::error;
9use num_derive::{FromPrimitive, ToPrimitive};
10use num_traits::{FromPrimitive, ToPrimitive};
11use std::convert::TryFrom;
12/// Enum repsenting the different TPM Startup Type values.
13#[derive(FromPrimitive, ToPrimitive, Debug, Copy, Clone, PartialEq, Eq)]
14#[repr(u16)]
15pub enum StartupType {
16    Clear = TPM2_SU_CLEAR,
17    State = TPM2_SU_STATE,
18}
19
20impl From<StartupType> for TPM2_SU {
21    fn from(startup_type: StartupType) -> TPM2_SU {
22        // The values are well defined so this cannot fail.
23        startup_type.to_u16().unwrap()
24    }
25}
26
27impl TryFrom<TPM2_SU> for StartupType {
28    type Error = Error;
29    fn try_from(tpm_startup_type: TPM2_SU) -> Result<StartupType> {
30        StartupType::from_u16(tpm_startup_type).ok_or_else(|| {
31            error!(
32                "value = {} did not match any StartupType.",
33                tpm_startup_type
34            );
35            Error::local_error(WrapperErrorKind::InvalidParam)
36        })
37    }
38}
tss_esapi/constants/startup_type.rs

tss_esapi/constants/
startup_type.rs
