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 <[email protected]>
diff --git a/PCR_Event.c b/PCR_Event.c
new file mode 100644
index 0000000..0010617
--- /dev/null
+++ b/PCR_Event.c
@@ -0,0 +1,66 @@
+// 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 "PCR_Event_fp.h"
+//
+//
+// Error Returns Meaning
+//
+// TPM_RC_LOCALITY current command locality is not allowed to extend the PCR
+// referenced by pcrHandle
+//
+TPM_RC
+TPM2_PCR_Event(
+ PCR_Event_In *in, // IN: input parameter list
+ PCR_Event_Out *out // OUT: output parameter list
+ )
+{
+ TPM_RC result;
+ HASH_STATE hashState;
+ UINT32 i;
+ UINT16 size;
+
+// Input Validation
+
+ // If a PCR extend is required
+ if(in->pcrHandle != TPM_RH_NULL)
+ {
+ // If the PCR is not allow to extend, return error
+ if(!PCRIsExtendAllowed(in->pcrHandle))
+ return TPM_RC_LOCALITY;
+
+ // If PCR is state saved and we need to update orderlyState, check NV
+ // availability
+ if(PCRIsStateSaved(in->pcrHandle) && gp.orderlyState != SHUTDOWN_NONE)
+ {
+ result = NvIsAvailable();
+ if(result != TPM_RC_SUCCESS) return result;
+ g_clearOrderly = TRUE;
+ }
+ }
+
+// Internal Data Update
+
+ out->digests.count = HASH_COUNT;
+
+ // Iterate supported PCR bank algorithms to extend
+ for(i = 0; i < HASH_COUNT; i++)
+ {
+ TPM_ALG_ID hash = CryptGetHashAlgByIndex(i);
+ out->digests.digests[i].hashAlg = hash;
+ size = CryptStartHash(hash, &hashState);
+ CryptUpdateDigest2B(&hashState, &in->eventData.b);
+ CryptCompleteHash(&hashState, size,
+ (BYTE *) &out->digests.digests[i].digest);
+ if(in->pcrHandle != TPM_RH_NULL)
+ PCRExtend(in->pcrHandle, hash, size,
+ (BYTE *) &out->digests.digests[i].digest);
+ }
+
+ return TPM_RC_SUCCESS;
+}
