Re: [PATCH 04/10] security: keys: trusted: Allow storage of PCR values in creation data

[Eric Biggers]

On Wed, May 04, 2022 at 04:20:56PM -0700, Evan Green wrote:
> diff --git a/security/keys/trusted-keys/trusted_tpm1.c b/security/keys/trusted-keys/trusted_tpm1.c
> index aa108bea6739b3..2975827c01bec0 100644
> --- a/security/keys/trusted-keys/trusted_tpm1.c
> +++ b/security/keys/trusted-keys/trusted_tpm1.c
> @@ -713,6 +713,7 @@ enum {
>  	Opt_hash,
>  	Opt_policydigest,
>  	Opt_policyhandle,
> +	Opt_creationpcrs,
>  };
>  
>  static const match_table_t key_tokens = {
> @@ -725,6 +726,7 @@ static const match_table_t key_tokens = {
>  	{Opt_hash, "hash=%s"},
>  	{Opt_policydigest, "policydigest=%s"},
>  	{Opt_policyhandle, "policyhandle=%s"},
> +	{Opt_creationpcrs, "creationpcrs=%s"},
>  	{Opt_err, NULL}
>  };
>  
> @@ -858,6 +860,13 @@ static int getoptions(char *c, struct trusted_key_payload *pay,
>  				return -EINVAL;
>  			opt->policyhandle = handle;
>  			break;
> +		case Opt_creationpcrs:
> +			if (!tpm2)
> +				return -EINVAL;
> +			res = kstrtoint(args[0].from, 16, &opt->creation_pcrs);
> +			if (res < 0)
> +				return -EINVAL;
> +			break;

I thought that TPM1 is deprecated.  Are you sure you need more TPM1 features?

- Eric