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| author | Frans Hendriks <fhendriks@eltan.com> | 2019-06-28 10:18:22 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2019-09-03 23:48:58 +0000 |
| commit | 7e220cac2d9a7065442ea0d757e424b17cd06961 (patch) | |
| tree | 2aac622ab2f97f44b85d0afbf54126b43885b940 /src/security/tpm/tss/tcg-2.0/tss.c | |
| parent | 63f73f2a60ab6ed8b45c0e8d3ad985f8fa4184ab (diff) | |
security/tpm/tss/tcg-2.0: Use tlcl_get_hash_size_from_algo() for hash size
mashal_TPMT_HA() uses size of SHA-256 hash.
Use tlcll_get_hash_size_from_algo() to determince the hash size.
BUG=N/A
TEST=Build binary and verified logging on Facebook FBG-1701
Change-Id: I739260e13e9cd10a61d52e13e8741b12ec868d7f
Signed-off-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lance Zhao <lance.zhao@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/security/tpm/tss/tcg-2.0/tss.c')
| -rw-r--r-- | src/security/tpm/tss/tcg-2.0/tss.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/security/tpm/tss/tcg-2.0/tss.c b/src/security/tpm/tss/tcg-2.0/tss.c index 08a7caa1a9..16e40fe569 100644 --- a/src/security/tpm/tss/tcg-2.0/tss.c +++ b/src/security/tpm/tss/tcg-2.0/tss.c @@ -352,6 +352,38 @@ uint32_t tlcl_define_space(uint32_t space_index, size_t space_size, } } +uint16_t tlcl_get_hash_size_from_algo(TPMI_ALG_HASH hash_algo) +{ + uint16_t value; + + switch (hash_algo) { + case TPM_ALG_ERROR: + value = 1; + break; + case TPM_ALG_SHA1: + value = SHA1_DIGEST_SIZE; + break; + case TPM_ALG_SHA256: + value = SHA256_DIGEST_SIZE; + break; + case TPM_ALG_SHA384: + value = SHA384_DIGEST_SIZE; + break; + case TPM_ALG_SHA512: + value = SHA512_DIGEST_SIZE; + break; + case TPM_ALG_SM3_256: + value = SM3_256_DIGEST_SIZE; + break; + default: + printk(BIOS_SPEW, "%s: unknown hash algorithm %d\n", __func__, + hash_algo); + value = 0; + }; + + return value; +} + uint32_t tlcl_disable_platform_hierarchy(void) { struct tpm2_response *response; |