diff options
Diffstat (limited to 'src/security/tpm/tss/tcg-1.2')
| -rw-r--r-- | src/security/tpm/tss/tcg-1.2/tss.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/src/security/tpm/tss/tcg-1.2/tss.c b/src/security/tpm/tss/tcg-1.2/tss.c index 52bc2722b2..6b79aabe87 100644 --- a/src/security/tpm/tss/tcg-1.2/tss.c +++ b/src/security/tpm/tss/tcg-1.2/tss.c @@ -331,25 +331,20 @@ uint32_t tlcl_set_global_lock(void) return tlcl_write(TPM_NV_INDEX0, NULL, 0); } -uint32_t tlcl_extend(int pcr_num, const uint8_t *in_digest, - uint8_t *out_digest) +uint32_t tlcl_extend(int pcr_num, const uint8_t *digest_data, + enum vb2_hash_algorithm digest_algo) { struct s_tpm_extend_cmd cmd; uint8_t response[kTpmResponseHeaderLength + kPcrDigestLength]; - uint32_t result; + + if (digest_algo != VB2_HASH_SHA1) + return TPM_E_INVALID_ARG; memcpy(&cmd, &tpm_extend_cmd, sizeof(cmd)); to_tpm_uint32(cmd.buffer + tpm_extend_cmd.pcrNum, pcr_num); - memcpy(cmd.buffer + cmd.inDigest, in_digest, kPcrDigestLength); - - result = tlcl_send_receive(cmd.buffer, response, sizeof(response)); - if (result != TPM_SUCCESS) - return result; + memcpy(cmd.buffer + cmd.inDigest, digest_data, kPcrDigestLength); - if (out_digest) - memcpy(out_digest, response + kTpmResponseHeaderLength, - kPcrDigestLength); - return result; + return tlcl_send_receive(cmd.buffer, response, sizeof(response)); } uint32_t tlcl_get_permissions(uint32_t index, uint32_t *permissions) |