From fb1cf320a28a4bb016234148f13dee0291efd5b6 Mon Sep 17 00:00:00 2001 From: Andreas Steffen Date: Mon, 4 Dec 2017 17:46:23 +0100 Subject: [PATCH] libtpmtss: Extend TPM 2.0 capability info --- src/libtpmtss/tpm_tss_tss2.c | 45 ++++++++++++++++++++++++++++++++++-- 1 file changed, 43 insertions(+), 2 deletions(-) diff --git a/src/libtpmtss/tpm_tss_tss2.c b/src/libtpmtss/tpm_tss_tss2.c index 4c0d95fe57..0136c27554 100644 --- a/src/libtpmtss/tpm_tss_tss2.c +++ b/src/libtpmtss/tpm_tss_tss2.c @@ -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); -- 2.47.2