On Fri, 2015-10-30 at 13:35 +0200, Jarkko Sakkinen wrote:
> @@ -787,6 +791,20 @@ static int getoptions(char *c, struct trusted_key_payload *pay,
> return -EINVAL;
> opt->pcrlock = lock;
> break;
> + case Opt_hash:
> + for (i = 0; i < HASH_ALGO__LAST; i++) {
> + if (!strcmp(args[0].from, hash_algo_name[i])) {
> + opt->hash = i;
> + break;
> + }
> + }
> + res = tpm_is_tpm2(TPM_ANY_NUM);
While looking at this, I wanted to verify that chips are still added to
the tail of the tpm_chip_list. Unfortunately, commit "afb5abc tpm:
two-phase chip management functions" reverted David Howell's commit
"770ab65 TPM: Add new TPMs to the tail of the list to prevent
inadvertent change of dev".
> + if (res < 0)
> + return res;
> + if (i == HASH_ALGO__LAST ||
> + (!res && i != HASH_ALGO_SHA1))
> + return -EINVAL;
> + break;
If the first TPM registered is a TPM 1.2, then changing the default TPM
2.0 hash algorithm will fail.
Mimi
> default:
> return -EINVAL;
> }
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