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libtpmtss: Extend TPM 2.0 capability info

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This commit is contained in:
Andreas Steffen
2017-12-05 21:31:31 +01:00
parent 0729be1bfe
commit fb1cf320a2
1 changed files with 43 additions and 2 deletions
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src/libtpmtss/tpm_tss_tss2.c
+43 -2
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@@ -150,14 +150,55 @@ static bool is_supported_alg(private_tpm_tss_tss2_t *this, TPM_ALG_ID alg_id)
static bool get_algs_capability(private_tpm_tss_tss2_t *this)
{
TPMS_CAPABILITY_DATA cap_data;
TPMS_TAGGED_PROPERTY tp;
TPMI_YES_NO more_data;
TPM_ALG_ID alg;
uint32_t rval, i;
uint32_t rval, i, offset, revision = 0, year = 0;
size_t len = BUF_LEN;
char buf[BUF_LEN];
char buf[BUF_LEN], manufacturer[5], vendor_string[17];
char *pos = buf;
int written;
/* get fixed properties */
rval = Tss2_Sys_GetCapability(this->sys_context, 0, TPM_CAP_TPM_PROPERTIES,
PT_FIXED, MAX_TPM_PROPERTIES, &more_data, &cap_data, 0);
if (rval != TPM_RC_SUCCESS)
{
DBG1(DBG_PTS, "%s GetCapability failed for TPM_CAP_TPM_PROPERTIES: 0x%06x",
LABEL, rval);
}
memset(manufacturer, '\0', sizeof(manufacturer));
memset(vendor_string, '\0', sizeof(vendor_string));
/* print fixed properties */
for (i = 0; i < cap_data.data.tpmProperties.count; i++)
{
tp = cap_data.data.tpmProperties.tpmProperty[i];
switch (tp.property)
{
case TPM_PT_REVISION:
revision = tp.value;
break;
case TPM_PT_YEAR:
year = tp.value;
break;
case TPM_PT_MANUFACTURER:
htoun32(manufacturer, tp.value);
break;
case TPM_PT_VENDOR_STRING_1:
case TPM_PT_VENDOR_STRING_2:
case TPM_PT_VENDOR_STRING_3:
case TPM_PT_VENDOR_STRING_4:
offset = 4 * (tp.property - TPM_PT_VENDOR_STRING_1);
htoun32(vendor_string + offset, tp.value);
break;
default:
break;
}
}
DBG2(DBG_PTS, "%s manufacturer: %s (%s) rev: %05.2f %u", LABEL, manufacturer,
vendor_string, (float)revision/100, year);
/* get supported algorithms */
rval = Tss2_Sys_GetCapability(this->sys_context, 0, TPM_CAP_ALGS,
0, TPM_PT_ALGORITHM_SET, &more_data, &cap_data, 0);