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52 lines
1.5 KiB
52 lines
1.5 KiB
// This file was extracted from the TCG Published |
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// Trusted Platform Module Library |
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// Part 3: Commands |
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// Family "2.0" |
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// Level 00 Revision 01.16 |
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// October 30, 2014 |
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#include "InternalRoutines.h" |
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#include "PCR_SetAuthPolicy_fp.h" |
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// |
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// |
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// Error Returns Meaning |
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// |
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// TPM_RC_SIZE size of authPolicy is not the size of a digest produced by policyDigest |
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// TPM_RC_VALUE PCR referenced by pcrNum is not a member of a PCR policy group |
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// |
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TPM_RC |
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TPM2_PCR_SetAuthPolicy( |
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PCR_SetAuthPolicy_In *in // IN: input parameter list |
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) |
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{ |
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UINT32 groupIndex; |
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TPM_RC result; |
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// The command needs NV update. Check if NV is available. |
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// A TPM_RC_NV_UNAVAILABLE or TPM_RC_NV_RATE error may be returned at |
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// this point |
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result = NvIsAvailable(); |
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if(result != TPM_RC_SUCCESS) return result; |
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// Input Validation: |
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// Check the authPolicy consistent with hash algorithm |
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if(in->authPolicy.t.size != CryptGetHashDigestSize(in->hashAlg)) |
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return TPM_RC_SIZE + RC_PCR_SetAuthPolicy_authPolicy; |
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// If PCR does not belong to a policy group, return TPM_RC_VALUE |
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if(!PCRBelongsPolicyGroup(in->pcrNum, &groupIndex)) |
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return TPM_RC_VALUE + RC_PCR_SetAuthPolicy_pcrNum; |
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// Internal Data Update |
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// Set PCR policy |
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gp.pcrPolicies.hashAlg[groupIndex] = in->hashAlg; |
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gp.pcrPolicies.policy[groupIndex] = in->authPolicy; |
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// Save new policy to NV |
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NvWriteReserved(NV_PCR_POLICIES, &gp.pcrPolicies); |
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return TPM_RC_SUCCESS; |
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}
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