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// 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 "SetPrimaryPolicy_fp.h"
//
//
// Error Returns Meaning
//
// TPM_RC_SIZE size of input authPolicy is not consistent with input hash algorithm
//
TPM_RC
TPM2_SetPrimaryPolicy(
SetPrimaryPolicy_In *in // IN: input parameter list
)
{
TPM_RC result;
// Input Validation
// Check the authPolicy consistent with hash algorithm. If the policy size is
// zero, then the algorithm is required to be TPM_ALG_NULL
if(in->authPolicy.t.size != CryptGetHashDigestSize(in->hashAlg))
return TPM_RC_SIZE + RC_SetPrimaryPolicy_authPolicy;
// The command need NV update for OWNER and ENDORSEMENT hierarchy, and
// might need orderlyState update for PLATFROM hierarchy.
// Check if NV is available. A TPM_RC_NV_UNAVAILABLE or TPM_RC_NV_RATE
// error may be returned at this point
result = NvIsAvailable();
if(result != TPM_RC_SUCCESS)
return result;
// Internal Data Update
// Set hierarchy policy
switch(in->authHandle)
{
case TPM_RH_OWNER:
gp.ownerAlg = in->hashAlg;
gp.ownerPolicy = in->authPolicy;
NvWriteReserved(NV_OWNER_ALG, &gp.ownerAlg);
NvWriteReserved(NV_OWNER_POLICY, &gp.ownerPolicy);
break;
case TPM_RH_ENDORSEMENT:
gp.endorsementAlg = in->hashAlg;
gp.endorsementPolicy = in->authPolicy;
NvWriteReserved(NV_ENDORSEMENT_ALG, &gp.endorsementAlg);
NvWriteReserved(NV_ENDORSEMENT_POLICY, &gp.endorsementPolicy);
break;
case TPM_RH_PLATFORM:
gc.platformAlg = in->hashAlg;
gc.platformPolicy = in->authPolicy;
// need to update orderly state
g_clearOrderly = TRUE;
break;
case TPM_RH_LOCKOUT:
gp.lockoutAlg = in->hashAlg;
gp.lockoutPolicy = in->authPolicy;
NvWriteReserved(NV_LOCKOUT_ALG, &gp.lockoutAlg);
NvWriteReserved(NV_LOCKOUT_POLICY, &gp.lockoutPolicy);
break;
default:
pAssert(FALSE);
break;
}
return TPM_RC_SUCCESS;
}
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