diff options
Diffstat (limited to 'drivers/char/tpm')
| -rw-r--r-- | drivers/char/tpm/tpm2-cmd.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c index 7d77f6fbc152..5532e53a2dd3 100644 --- a/drivers/char/tpm/tpm2-cmd.c +++ b/drivers/char/tpm/tpm2-cmd.c @@ -18,7 +18,7 @@ static bool disable_pcr_integrity; module_param(disable_pcr_integrity, bool, 0444); MODULE_PARM_DESC(disable_pcr_integrity, "Disable integrity protection of TPM2_PCR_Extend"); -static struct tpm2_hash tpm2_hash_map[] = { +struct tpm2_hash tpm2_hash_map[] = { {HASH_ALGO_SHA1, TPM_ALG_SHA1}, {HASH_ALGO_SHA256, TPM_ALG_SHA256}, {HASH_ALGO_SHA384, TPM_ALG_SHA384}, @@ -26,6 +26,18 @@ static struct tpm2_hash tpm2_hash_map[] = { {HASH_ALGO_SM3_256, TPM_ALG_SM3_256}, }; +int tpm2_find_hash_alg(unsigned int crypto_id) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(tpm2_hash_map); i++) + if (crypto_id == tpm2_hash_map[i].crypto_id) + return tpm2_hash_map[i].tpm_id; + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(tpm2_find_hash_alg); + int tpm2_get_timeouts(struct tpm_chip *chip) { chip->timeout_a = msecs_to_jiffies(TPM2_TIMEOUT_A); |