From 5679752bf24c21135884e987c4077e2f71848971 Mon Sep 17 00:00:00 2001
From: Vadim Bendebury <vbendeb@chromium.org>
Date: Wed, 20 May 2015 10:32:25 -0700
Subject: Initial commit to seed TPM2.0 source code directory

LICENSE file text copied from TCG library specification. README
describes the procedure used to extract source code from parts 3 and 4
of the specification.

The python scripts and part{34}.txt files will be removed in the
following commits.

Change-Id: Ie281e6e988481831f33483053455e8aff8f3f75f
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
---
 Quote.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 Quote.c

(limited to 'Quote.c')

diff --git a/Quote.c b/Quote.c
new file mode 100644
index 0000000..d1c5298
--- /dev/null
+++ b/Quote.c
@@ -0,0 +1,90 @@
+// This file was extracted from the TCG Published
+// Trusted Platform Module Library
+// Part 3: Commands
+// Family "2.0"
+// Level 00 Revision 01.16
+// October 30, 2014
+
+#include "InternalRoutines.h"
+#include "Attest_spt_fp.h"
+#include "Quote_fp.h"
+//
+//
+//     Error Returns               Meaning
+//
+//     TPM_RC_KEY                  signHandle does not reference a signing key;
+//     TPM_RC_SCHEME               the scheme is not compatible with sign key type, or input scheme is
+//                                 not compatible with default scheme, or the chosen scheme is not a
+//                                 valid sign scheme
+//
+TPM_RC
+TPM2_Quote(
+   Quote_In        *in,             // IN: input parameter list
+   Quote_Out       *out             // OUT: output parameter list
+   )
+{
+   TPM_RC                  result;
+   TPMI_ALG_HASH           hashAlg;
+   TPMS_ATTEST             quoted;
+
+// Command Output
+
+   // Filling in attest information
+   // Common fields
+   // FillInAttestInfo may return TPM_RC_SCHEME or TPM_RC_KEY
+   result = FillInAttestInfo(in->signHandle,
+                             &in->inScheme,
+                             &in->qualifyingData,
+                             &quoted);
+   if(result != TPM_RC_SUCCESS)
+   {
+       if(result == TPM_RC_KEY)
+           return TPM_RC_KEY + RC_Quote_signHandle;
+       else
+           return RcSafeAddToResult(result, RC_Quote_inScheme);
+   }
+
+   // Quote specific fields
+   // Attestation type
+   quoted.type = TPM_ST_ATTEST_QUOTE;
+
+   // Get hash algorithm in sign scheme. This hash algorithm is used to
+   // compute PCR digest. If there is no algorithm, then the PCR cannot
+   // be digested and this command returns TPM_RC_SCHEME
+   hashAlg = in->inScheme.details.any.hashAlg;
+
+   if(hashAlg == TPM_ALG_NULL)
+       return TPM_RC_SCHEME + RC_Quote_inScheme;
+
+   // Compute PCR digest
+   PCRComputeCurrentDigest(hashAlg,
+                           &in->PCRselect,
+                           &quoted.attested.quote.pcrDigest);
+
+   // Copy PCR select. "PCRselect" is modified in PCRComputeCurrentDigest
+   // function
+   quoted.attested.quote.pcrSelect = in->PCRselect;
+
+   // Sign attestation structure. A NULL signature will be returned if
+   // signHandle is TPM_RH_NULL. TPM_RC_VALUE, TPM_RC_SCHEME or TPM_RC_ATTRIBUTES
+   // error may be returned by SignAttestInfo.
+   // NOTE: TPM_RC_ATTRIBUTES means that the key is not a signing key but that
+   // was checked above and TPM_RC_KEY was returned. TPM_RC_VALUE means that the
+   // value to sign is too large but that means that the digest is too big and
+   // that can't happen.
+   result = SignAttestInfo(in->signHandle,
+                           &in->inScheme,
+                           &quoted,
+                           &in->qualifyingData,
+                           &out->quoted,
+                           &out->signature);
+   if(result != TPM_RC_SUCCESS)
+       return result;
+
+   // orderly state should be cleared because of the reporting of clock info
+   // if signing happens
+   if(in->signHandle != TPM_RH_NULL)
+       g_clearOrderly = TRUE;
+
+   return TPM_RC_SUCCESS;
+}
-- 
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