diff options
Diffstat (limited to 'src/lib/tpm2_marshaling.c')
| -rw-r--r-- | src/lib/tpm2_marshaling.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/lib/tpm2_marshaling.c b/src/lib/tpm2_marshaling.c index 00c8f7d9f9..ab9a928444 100644 --- a/src/lib/tpm2_marshaling.c +++ b/src/lib/tpm2_marshaling.c @@ -201,6 +201,27 @@ static void marshal_TPMS_NV_PUBLIC(void **buffer, marshal_u16(buffer, nvpub->dataSize, buffer_space); } +static void marshal_TPMT_HA(void **buffer, + TPMT_HA *tpmtha, + size_t *buffer_space) +{ + marshal_TPMI_ALG_HASH(buffer, tpmtha->hashAlg, buffer_space); + marshal_blob(buffer, tpmtha->digest.sha256, + sizeof(tpmtha->digest.sha256), + buffer_space); +} + +static void marshal_TPML_DIGEST_VALUES(void **buffer, + TPML_DIGEST_VALUES *dvalues, + size_t *buffer_space) +{ + int i; + + marshal_u32(buffer, dvalues->count, buffer_space); + for (i = 0; i < dvalues->count; i++) + marshal_TPMT_HA(buffer, &dvalues->digests[i], buffer_space); +} + static void marshal_session_header(void **buffer, struct tpm2_session_header *session_header, size_t *buffer_space) @@ -312,6 +333,17 @@ static void marshal_nv_write_lock(void **buffer, ARRAY_SIZE(handles), buffer_space); } +static void marshal_pcr_extend(void **buffer, + struct tpm2_pcr_extend_cmd *command_body, + size_t *buffer_space) +{ + uint32_t handle = command_body->pcrHandle; + + marshal_common_session_header(buffer, &handle, 1, buffer_space); + marshal_TPML_DIGEST_VALUES(buffer, + &command_body->digests, buffer_space); +} + static void marshal_nv_read(void **buffer, struct tpm2_nv_read_cmd *command_body, size_t *buffer_space) @@ -385,6 +417,10 @@ int tpm_marshal_command(TPM_CC command, void *tpm_command_body, marshal_clear(&cmd_body, &body_size); break; + case TPM2_PCR_Extend: + marshal_pcr_extend(&cmd_body, tpm_command_body, &body_size); + break; + default: body_size = 0; printk(BIOS_INFO, "%s:%d:Request to marshal unsupported command %#x\n", @@ -547,6 +583,7 @@ struct tpm2_response *tpm_unmarshal_response(TPM_CC command, case TPM2_NV_DefineSpace: case TPM2_NV_Write: case TPM2_NV_WriteLock: + case TPM2_PCR_Extend: /* Session data included in response can be safely ignored. */ cr_size = 0; break; |