104 lines
4.3 KiB
C
104 lines
4.3 KiB
C
// 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 "Load_fp.h"
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#include "Object_spt_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_ASYMMETRIC storage key with different asymmetric type than parent
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// TPM_RC_ATTRIBUTES inPulblic attributes are not allowed with selected parent
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// TPM_RC_BINDING inPrivate and inPublic are not cryptographically bound
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// TPM_RC_HASH incorrect hash selection for signing key
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// TPM_RC_INTEGRITY HMAC on inPrivate was not valid
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// TPM_RC_KDF KDF selection not allowed
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// TPM_RC_KEY the size of the object's unique field is not consistent with the indicated
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// size in the object's parameters
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// TPM_RC_OBJECT_MEMORY no available object slot
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// TPM_RC_SCHEME the signing scheme is not valid for the key
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// TPM_RC_SENSITIVE the inPrivate did not unmarshal correctly
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// TPM_RC_SIZE inPrivate missing, or authPolicy size for inPublic or is not valid
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// TPM_RC_SYMMETRIC symmetric algorithm not provided when required
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// TPM_RC_TYPE parentHandle is not a storage key, or the object to load is a storage
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// key but its parameters do not match the parameters of the parent.
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// TPM_RC_VALUE decryption failure
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//
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TPM_RC
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TPM2_Load(
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Load_In *in, // IN: input parameter list
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Load_Out *out // OUT: output parameter list
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)
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{
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TPM_RC result = TPM_RC_SUCCESS;
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TPMT_SENSITIVE sensitive;
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TPMI_RH_HIERARCHY hierarchy;
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OBJECT *parentObject = NULL;
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BOOL skipChecks = FALSE;
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// Input Validation
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if(in->inPrivate.t.size == 0)
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return TPM_RC_SIZE + RC_Load_inPrivate;
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parentObject = ObjectGet(in->parentHandle);
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// Is the object that is being used as the parent actually a parent.
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if(!AreAttributesForParent(parentObject))
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return TPM_RC_TYPE + RC_Load_parentHandle;
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// If the parent is fixedTPM, then the attributes of the object
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// are either "correct by construction" or were validated
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// when the object was imported. If they pass the integrity
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// check, then the values are valid
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if(parentObject->publicArea.objectAttributes.fixedTPM)
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skipChecks = TRUE;
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else
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{
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// If parent doesn't have fixedTPM SET, then this can't have
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// fixedTPM SET.
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if(in->inPublic.t.publicArea.objectAttributes.fixedTPM == SET)
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return TPM_RC_ATTRIBUTES + RC_Load_inPublic;
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// Perform self check on input public area. A TPM_RC_SIZE, TPM_RC_SCHEME,
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// TPM_RC_VALUE, TPM_RC_SYMMETRIC, TPM_RC_TYPE, TPM_RC_HASH,
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// TPM_RC_ASYMMETRIC, TPM_RC_ATTRIBUTES or TPM_RC_KDF error may be returned
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// at this point
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result = PublicAttributesValidation(TRUE, in->parentHandle,
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&in->inPublic.t.publicArea);
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if(result != TPM_RC_SUCCESS)
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return RcSafeAddToResult(result, RC_Load_inPublic);
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}
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// Compute the name of object
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ObjectComputeName(&in->inPublic.t.publicArea, &out->name);
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// Retrieve sensitive data. PrivateToSensitive() may return TPM_RC_INTEGRITY or
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// TPM_RC_SENSITIVE
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// errors may be returned at this point
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result = PrivateToSensitive(&in->inPrivate, &out->name, in->parentHandle,
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in->inPublic.t.publicArea.nameAlg,
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&sensitive);
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if(result != TPM_RC_SUCCESS)
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return RcSafeAddToResult(result, RC_Load_inPrivate);
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// Internal Data Update
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// Get hierarchy of parent
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hierarchy = ObjectGetHierarchy(in->parentHandle);
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// Create internal object. A lot of different errors may be returned by this
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// loading operation as it will do several validations, including the public
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// binding check
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result = ObjectLoad(hierarchy, &in->inPublic.t.publicArea, &sensitive,
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&out->name, in->parentHandle, skipChecks,
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&out->objectHandle);
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if(result != TPM_RC_SUCCESS)
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return result;
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return TPM_RC_SUCCESS;
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}
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