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1201 lines
53 KiB
1201 lines
53 KiB
// This file was extracted from the TCG Published |
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// Trusted Platform Module Library |
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// Part 4: Supporting Routines |
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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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|
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#ifndef GLOBAL_H |
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#define GLOBAL_H |
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//#define SELF_TEST |
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#include "TpmBuildSwitches.h" |
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#include "Tpm.h" |
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#include "TPMB.h" |
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#include "CryptoEngine.h" |
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#ifndef EMBEDDED_MODE |
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#include <setjmp.h> |
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#endif |
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// |
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// |
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// |
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// Defines and Types |
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// |
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// Unreferenced Parameter |
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// |
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// This define is used to eliminate the compiler warning about an unreferenced parameter. Basically, it tells |
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// the compiler that it is not an accident that the parameter is unreferenced. |
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// |
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#ifndef UNREFERENCED_PARAMETER |
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# define UNREFERENCED_PARAMETER(a) (a) |
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#endif |
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#include "bits.h" |
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// |
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// |
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// Crypto Self-Test Values |
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// |
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// Define these values here if the AlgorithmTests() project is not used |
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// |
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#ifndef SELF_TEST |
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extern ALGORITHM_VECTOR g_implementedAlgorithms; |
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extern ALGORITHM_VECTOR g_toTest; |
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#else |
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LIB_IMPORT extern ALGORITHM_VECTOR g_implementedAlgorithms; |
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LIB_IMPORT extern ALGORITHM_VECTOR g_toTest; |
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#endif |
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// |
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// These macros are used in CryptUtil() to invoke the incremental self test. |
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// |
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#define TEST(alg) if(TEST_BIT(alg, g_toTest)) CryptTestAlgorithm(alg, NULL) |
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// |
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// Use of TPM_ALG_NULL is reserved for RSAEP/RSADP testing. If someone is wanting to test a hash with |
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// that value, don't do it. |
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// |
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#define TEST_HASH(alg) \ |
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if( TEST_BIT(alg, g_toTest) \ |
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&& (alg != ALG_NULL_VALUE)) \ |
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CryptTestAlgorithm(alg, NULL) |
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// |
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// |
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// Hash and HMAC State Structures |
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// |
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// These definitions are for the types that can be in a hash state structure. These types are used in the |
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// crypto utilities |
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// |
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typedef BYTE HASH_STATE_TYPE; |
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#define HASH_STATE_EMPTY ((HASH_STATE_TYPE) 0) |
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#define HASH_STATE_HASH ((HASH_STATE_TYPE) 1) |
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#define HASH_STATE_HMAC ((HASH_STATE_TYPE) 2) |
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// |
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// A HASH_STATE structure contains an opaque hash stack state. A caller would use this structure when |
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// performing incremental hash operations. The state is updated on each call. If type is an HMAC_STATE, |
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// or HMAC_STATE_SEQUENCE then state is followed by the HMAC key in oPad format. |
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// |
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typedef struct |
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{ |
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CPRI_HASH_STATE state; // hash state |
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HASH_STATE_TYPE type; // type of the context |
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} HASH_STATE; |
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// |
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// |
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// |
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// |
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// An HMAC_STATE structure contains an opaque HMAC stack state. A caller would use this structure |
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// when performing incremental HMAC operations. This structure contains a hash state and an HMAC key |
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// and allows slightly better stack optimization than adding an HMAC key to each hash state. |
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// |
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typedef struct |
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{ |
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HASH_STATE hashState; // the hash state |
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TPM2B_HASH_BLOCK hmacKey; // the HMAC key |
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} HMAC_STATE; |
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// |
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// |
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// Other Types |
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// |
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// An AUTH_VALUE is a BYTE array containing a digest (TPMU_HA) |
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// |
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typedef BYTE AUTH_VALUE[sizeof(TPMU_HA)]; |
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// |
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// A TIME_INFO is a BYTE array that can contain a TPMS_TIME_INFO |
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// |
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typedef BYTE TIME_INFO[sizeof(TPMS_TIME_INFO)]; |
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// |
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// A NAME is a BYTE array that can contain a TPMU_NAME |
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// |
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typedef BYTE NAME[sizeof(TPMU_NAME)]; |
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// |
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// |
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// Loaded Object Structures |
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// |
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// Description |
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// |
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// The structures in this section define the object layout as it exists in TPM memory. |
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// Two types of objects are defined: an ordinary object such as a key, and a sequence object that may be a |
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// hash, HMAC, or event. |
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// |
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// OBJECT_ATTRIBUTES |
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// |
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// An OBJECT_ATTRIBUTES structure contains the variable attributes of an object. These properties are |
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// not part of the public properties but are used by the TPM in managing the object. An |
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// OBJECT_ATTRIBUTES is used in the definition of the OBJECT data type. |
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// |
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typedef struct |
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{ |
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unsigned publicOnly : 1; //0) SET if only the public portion of |
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// an object is loaded |
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unsigned epsHierarchy : 1; //1) SET if the object belongs to EPS |
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// Hierarchy |
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unsigned ppsHierarchy : 1; //2) SET if the object belongs to PPS |
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// Hierarchy |
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unsigned spsHierarchy : 1; //3) SET f the object belongs to SPS |
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// Hierarchy |
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unsigned evict : 1; //4) SET if the object is a platform or |
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// owner evict object. Platform- |
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// evict object belongs to PPS |
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// hierarchy, owner-evict object |
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// belongs to SPS or EPS hierarchy. |
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// This bit is also used to mark a |
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// completed sequence object so it |
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// will be flush when the |
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// SequenceComplete command succeeds. |
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unsigned primary : 1; //5) SET for a primary object |
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unsigned temporary : 1; |
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//6) SET for a temporary object |
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unsigned stClear : 1; |
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//7) SET for an stClear object |
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unsigned hmacSeq : 1; |
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//8) SET for an HMAC sequence object |
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unsigned hashSeq : 1; |
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//9) SET for a hash sequence object |
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unsigned eventSeq : 1; |
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//10) SET for an event sequence object |
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unsigned ticketSafe : 1; |
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//11) SET if a ticket is safe to create |
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// for hash sequence object |
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unsigned firstBlock : 1; //12) SET if the first block of hash |
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// data has been received. It |
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// works with ticketSafe bit |
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unsigned isParent : 1; //13) SET if the key has the proper |
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// attributes to be a parent key |
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unsigned privateExp : 1; //14) SET when the private exponent |
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// of an RSA key has been validated. |
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unsigned reserved : 1; //15) reserved bits. unused. |
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} OBJECT_ATTRIBUTES; |
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// |
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// |
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// OBJECT Structure |
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// |
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// An OBJECT structure holds the object public, sensitive, and meta-data associated. This structure is |
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// implementation dependent. For this implementation, the structure is not optimized for space but rather for |
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// clarity of the reference implementation. Other implementations may choose to overlap portions of the |
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// structure that are not used simultaneously. These changes would necessitate changes to the source code |
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// but those changes would be compatible with the reference implementation. |
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// |
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typedef struct |
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{ |
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// The attributes field is required to be first followed by the publicArea. |
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// This allows the overlay of the object structure and a sequence structure |
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OBJECT_ATTRIBUTES attributes; // object attributes |
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TPMT_PUBLIC publicArea; // public area of an object |
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TPMT_SENSITIVE sensitive; // sensitive area of an object |
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#ifdef TPM_ALG_RSA |
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TPM2B_PUBLIC_KEY_RSA privateExponent; // Additional field for the private |
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// exponent of an RSA key. |
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#endif |
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TPM2B_NAME qualifiedName; // object qualified name |
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TPMI_DH_OBJECT evictHandle; // if the object is an evict object, |
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// the original handle is kept here. |
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// The 'working' handle will be the |
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// handle of an object slot. |
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TPM2B_NAME name; // Name of the object name. Kept here |
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// to avoid repeatedly computing it. |
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} OBJECT; |
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#ifdef EMBEDDED_MODE |
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// This build time assert serves as a rudimentary check for changes |
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// to the OBJECT structure (which is serialized to NVmem). Whenever |
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// the OBJECT struct changes, NV_FORMAT_VERSION ought to be bumped. |
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struct size_check { char a[sizeof(OBJECT) == 1536 ? 1 : -1]; }; |
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#endif |
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// |
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// |
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// HASH_OBJECT Structure |
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// |
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// This structure holds a hash sequence object or an event sequence object. |
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// The first four components of this structure are manually set to be the same as the first four components of |
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// the object structure. This prevents the object from being inadvertently misused as sequence objects |
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// occupy the same memory as a regular object. A debug check is present to make sure that the offsets are |
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// what they are supposed to be. |
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// |
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typedef struct |
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{ |
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OBJECT_ATTRIBUTES attributes; // The attributes of the HASH object |
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TPMI_ALG_PUBLIC type; // algorithm |
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TPMI_ALG_HASH nameAlg; // name algorithm |
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TPMA_OBJECT objectAttributes; // object attributes |
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// The data below is unique to a sequence object |
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TPM2B_AUTH auth; // auth for use of sequence |
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union |
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{ |
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HASH_STATE hashState[HASH_COUNT]; |
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HMAC_STATE hmacState; |
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} state; |
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} HASH_OBJECT; |
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// |
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// |
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// ANY_OBJECT |
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// |
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// This is the union for holding either a sequence object or a regular object. |
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// |
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typedef union |
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{ |
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OBJECT entity; |
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HASH_OBJECT hash; |
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} ANY_OBJECT; |
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// |
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// |
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// AUTH_DUP Types |
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// |
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// These values are used in the authorization processing. |
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// |
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typedef UINT32 AUTH_ROLE; |
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#define AUTH_NONE ((AUTH_ROLE)(0)) |
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#define AUTH_USER ((AUTH_ROLE)(1)) |
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#define AUTH_ADMIN ((AUTH_ROLE)(2)) |
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#define AUTH_DUP ((AUTH_ROLE)(3)) |
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// |
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// |
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// Active Session Context |
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// |
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// Description |
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// |
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// The structures in this section define the internal structure of a session context. |
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// |
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// SESSION_ATTRIBUTES |
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// |
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// The attributes in the SESSION_ATTRIBUTES structure track the various properties of the session. It |
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// maintains most of the tracking state information for the policy session. It is used within the SESSION |
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// structure. |
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// |
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typedef struct |
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{ |
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unsigned isPolicy : 1; //1) SET if the session may only |
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// be used for policy |
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unsigned isAudit : 1; //2) SET if the session is used |
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// for audit |
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unsigned isBound : 1; //3) SET if the session is bound to |
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// with an entity. |
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// This attribute will be CLEAR if |
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// either isPolicy or isAudit is SET. |
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unsigned iscpHashDefined : 1;//4) SET if the cpHash has been defined |
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// This attribute is not SET unless |
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// 'isPolicy' is SET. |
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unsigned isAuthValueNeeded : 1; |
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//5) SET if the authValue is required |
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// for computing the session HMAC. |
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// This attribute is not SET unless |
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// isPolicy is SET. |
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unsigned isPasswordNeeded : 1; |
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//6) SET if a password authValue is |
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// required for authorization |
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// This attribute is not SET unless |
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// isPolicy is SET. |
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unsigned isPPRequired : 1; //7) SET if physical presence is |
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// required to be asserted when the |
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// authorization is checked. |
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// This attribute is not SET unless |
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// isPolicy is SET. |
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unsigned isTrialPolicy : 1; //8) SET if the policy session is |
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// created for trial of the policy's |
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// policyHash generation. |
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// This attribute is not SET unless |
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// isPolicy is SET. |
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unsigned isDaBound : 1; //9) SET if the bind entity had noDA |
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// CLEAR. If this is SET, then an |
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// auth failure using this session |
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// will count against lockout even |
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// if the object being authorized is |
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// exempt from DA. |
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unsigned isLockoutBound : 1; //10)SET if the session is bound to |
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// lockoutAuth. |
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unsigned requestWasBound : 1;//11) SET if the session is being used |
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// with the bind entity. If SET |
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// the authValue will not be use |
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// in the response HMAC computation. |
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unsigned checkNvWritten : 1; //12) SET if the TPMA_NV_WRITTEN |
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// attribute needs to be checked |
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// when the policy is used for |
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// authorization for NV access. |
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// If this is SET for any other |
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// type, the policy will fail. |
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unsigned nvWrittenState : 1; //13) SET if TPMA_NV_WRITTEN is |
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// required to be SET. |
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} SESSION_ATTRIBUTES; |
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// |
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// |
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// SESSION Structure |
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// |
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// The SESSION structure contains all the context of a session except for the associated contextID. |
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// |
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// NOTE: The contextID of a session is only relevant when the session context is stored off the TPM. |
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// |
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typedef struct |
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{ |
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TPM_ALG_ID authHashAlg; // session hash algorithm |
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TPM2B_NONCE nonceTPM; // last TPM-generated nonce for |
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// this session |
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TPMT_SYM_DEF symmetric; // session symmetric algorithm (if any) |
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TPM2B_AUTH sessionKey; // session secret value used for |
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// generating HMAC and encryption keys |
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SESSION_ATTRIBUTES attributes; // session attributes |
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TPM_CC commandCode; // command code (policy session) |
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TPMA_LOCALITY commandLocality; // command locality (policy session) |
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UINT32 pcrCounter; // PCR counter value when PCR is |
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// included (policy session) |
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// If no PCR is included, this |
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// value is 0. |
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UINT64 startTime; // value of TPMS_CLOCK_INFO.clock when |
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// the session was started (policy |
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// |
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// session) |
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UINT64 timeOut; // timeout relative to |
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// TPMS_CLOCK_INFO.clock |
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// There is no timeout if this value |
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// is 0. |
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union |
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{ |
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TPM2B_NAME boundEntity; // value used to track the entity to |
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// which the session is bound |
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TPM2B_DIGEST cpHash; // the required cpHash value for the |
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// command being authorized |
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} u1; // 'boundEntity' and 'cpHash' may |
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// share the same space to save memory |
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union |
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{ |
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TPM2B_DIGEST auditDigest; // audit session digest |
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TPM2B_DIGEST policyDigest; // policyHash |
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} u2; // audit log and policyHash may |
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// share space to save memory |
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} SESSION; |
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// |
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// |
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// PCR |
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// |
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// PCR_SAVE Structure |
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// |
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// The PCR_SAVE structure type contains the PCR data that are saved across power cycles. Only the static |
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// PCR are required to be saved across power cycles. The DRTM and resettable PCR are not saved. The |
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// number of static and resettable PCR is determined by the platform-specific specification to which the TPM |
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// is built. |
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// |
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typedef struct |
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{ |
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#ifdef TPM_ALG_SHA1 |
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BYTE sha1[NUM_STATIC_PCR][SHA1_DIGEST_SIZE]; |
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#endif |
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#ifdef TPM_ALG_SHA256 |
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BYTE sha256[NUM_STATIC_PCR][SHA256_DIGEST_SIZE]; |
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#endif |
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#ifdef TPM_ALG_SHA384 |
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BYTE sha384[NUM_STATIC_PCR][SHA384_DIGEST_SIZE]; |
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#endif |
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#ifdef TPM_ALG_SHA512 |
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BYTE sha512[NUM_STATIC_PCR][SHA512_DIGEST_SIZE]; |
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#endif |
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#ifdef TPM_ALG_SM3_256 |
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BYTE sm3_256[NUM_STATIC_PCR][SM3_256_DIGEST_SIZE]; |
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#endif |
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// This counter increments whenever the PCR are updated. |
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// NOTE: A platform-specific specification may designate |
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// certain PCR changes as not causing this counter |
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// to increment. |
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UINT32 pcrCounter; |
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} PCR_SAVE; |
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// |
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// |
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// |
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// PCR_POLICY |
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// |
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// This structure holds the PCR policies, one for each group of PCR controlled by policy. |
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// |
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typedef struct |
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{ |
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TPMI_ALG_HASH hashAlg[NUM_POLICY_PCR_GROUP]; |
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TPM2B_DIGEST a; |
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TPM2B_DIGEST policy[NUM_POLICY_PCR_GROUP]; |
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} PCR_POLICY; |
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// |
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// |
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// PCR_AUTHVALUE |
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// |
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// This structure holds the PCR policies, one for each group of PCR controlled by policy. |
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// |
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typedef struct |
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{ |
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TPM2B_DIGEST auth[NUM_AUTHVALUE_PCR_GROUP]; |
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} PCR_AUTHVALUE; |
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// |
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// |
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// Startup |
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// |
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// SHUTDOWN_NONE |
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// |
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// Part 2 defines the two shutdown/startup types that may be used in TPM2_Shutdown() and |
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// TPM2_Starup(). This additional define is used by the TPM to indicate that no shutdown was received. |
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// |
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// NOTE: This is a reserved value. |
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// |
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#define SHUTDOWN_NONE (TPM_SU)(0xFFFF) |
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// |
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// |
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// STARTUP_TYPE |
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// |
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// This enumeration is the possible startup types. The type is determined by the combination of |
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// TPM2_ShutDown() and TPM2_Startup(). |
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// |
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typedef enum |
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{ |
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SU_RESET, |
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SU_RESTART, |
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SU_RESUME |
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} STARTUP_TYPE; |
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// |
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// |
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// NV |
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// |
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// NV_RESERVE |
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// |
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// This enumeration defines the master list of the elements of a reserved portion of NV. This list includes all |
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// the pre-defined data that takes space in NV, either as persistent data or as state save data. The |
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// enumerations are used as indexes into an array of offset values. The offset values then are used to index |
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// into NV. This is method provides an imperfect analog to an actual NV implementation. |
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// |
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typedef enum |
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{ |
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// Entries below mirror the PERSISTENT_DATA structure. These values are written |
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// to NV as individual items. |
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// hierarchy |
|
NV_DISABLE_CLEAR, |
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NV_OWNER_ALG, |
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NV_ENDORSEMENT_ALG, |
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NV_LOCKOUT_ALG, |
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NV_OWNER_POLICY, |
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NV_ENDORSEMENT_POLICY, |
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NV_LOCKOUT_POLICY, |
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NV_OWNER_AUTH, |
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NV_ENDORSEMENT_AUTH, |
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NV_LOCKOUT_AUTH, |
|
NV_EP_SEED, |
|
NV_SP_SEED, |
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NV_PP_SEED, |
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NV_PH_PROOF, |
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NV_SH_PROOF, |
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NV_EH_PROOF, |
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// Time |
|
NV_TOTAL_RESET_COUNT, |
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NV_RESET_COUNT, |
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// PCR |
|
NV_PCR_POLICIES, |
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NV_PCR_ALLOCATED, |
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// Physical Presence |
|
NV_PP_LIST, |
|
// Dictionary Attack |
|
NV_FAILED_TRIES, |
|
NV_MAX_TRIES, |
|
NV_RECOVERY_TIME, |
|
NV_LOCKOUT_RECOVERY, |
|
NV_LOCKOUT_AUTH_ENABLED, |
|
// Orderly State flag |
|
NV_ORDERLY, |
|
// Command Audit |
|
NV_AUDIT_COMMANDS, |
|
NV_AUDIT_HASH_ALG, |
|
NV_AUDIT_COUNTER, |
|
// Algorithm Set |
|
NV_ALGORITHM_SET, |
|
NV_FIRMWARE_V1, |
|
NV_FIRMWARE_V2, |
|
// The entries above are in PERSISTENT_DATA. The entries below represent |
|
// structures that are read and written as a unit. |
|
// ORDERLY_DATA data structure written on each orderly shutdown |
|
NV_ORDERLY_DATA, |
|
// STATE_CLEAR_DATA structure written on each Shutdown(STATE) |
|
NV_STATE_CLEAR, |
|
// STATE_RESET_DATA structure written on each Shutdown(STATE) |
|
NV_STATE_RESET, |
|
NV_RESERVE_LAST // end of NV reserved data list |
|
} NV_RESERVE; |
|
// |
|
// NV_INDEX |
|
// |
|
// The NV_INDEX structure defines the internal format for an NV index. The indexData size varies |
|
// according to the type of the index. In this implementation, all of the index is manipulated as a unit. |
|
// |
|
typedef struct |
|
{ |
|
TPMS_NV_PUBLIC publicArea; |
|
TPM2B_AUTH authValue; |
|
} NV_INDEX; |
|
// |
|
// |
|
// COMMIT_INDEX_MASK |
|
// |
|
// This is the define for the mask value that is used when manipulating the bits in the commit bit array. The |
|
// commit counter is a 64-bit value and the low order bits are used to index the commitArray. This mask |
|
// value is applied to the commit counter to extract the bit number in the array. |
|
// |
|
#ifdef TPM_ALG_ECC |
|
#define COMMIT_INDEX_MASK ((UINT16)((sizeof(gr.commitArray)*8)-1)) |
|
#endif |
|
// |
|
// |
|
// RAM Global Values |
|
// |
|
// Description |
|
// |
|
// The values in this section are only extant in RAM. They are defined here and instanced in Global.c. |
|
// |
|
// g_rcIndex |
|
// |
|
// This array is used to contain the array of values that are added to a return code when it is a parameter-, |
|
// handle-, or session-related error. This is an implementation choice and the same result can be achieved |
|
// by using a macro. |
|
// |
|
extern const UINT16 g_rcIndex[15]; |
|
// |
|
// |
|
// g_exclusiveAuditSession |
|
// |
|
// This location holds the session handle for the current exclusive audit session. If there is no exclusive |
|
// audit session, the location is set to TPM_RH_UNASSIGNED. |
|
// |
|
extern TPM_HANDLE g_exclusiveAuditSession; |
|
// |
|
// |
|
// g_time |
|
// |
|
// This value is the count of milliseconds since the TPM was powered up. This value is initialized at |
|
// _TPM_Init(). |
|
// |
|
extern UINT64 g_time; |
|
// |
|
// |
|
// g_phEnable |
|
// |
|
// This is the platform hierarchy control and determines if the platform hierarchy is available. This value is |
|
// SET on each TPM2_Startup(). The default value is SET. |
|
// |
|
extern BOOL g_phEnable; |
|
// g_pceReConfig |
|
// |
|
// This value is SET if a TPM2_PCR_Allocate() command successfully executed since the last |
|
// TPM2_Startup(). If so, then the next shutdown is required to be Shutdown(CLEAR). |
|
// |
|
extern BOOL g_pcrReConfig; |
|
// |
|
// |
|
// g_DRTMHandle |
|
// |
|
// This location indicates the sequence object handle that holds the DRTM sequence data. When not used, |
|
// it is set to TPM_RH_UNASSIGNED. A sequence DRTM sequence is started on either _TPM_Init() or |
|
// _TPM_Hash_Start(). |
|
// |
|
extern TPMI_DH_OBJECT g_DRTMHandle; |
|
// |
|
// |
|
// g_DrtmPreStartup |
|
// |
|
// This value indicates that an H-CRTM occurred after _TPM_Init() but before TPM2_Startup(). The define |
|
// for PRE_STARTUP_FLAG is used to add the g_DrtmPreStartup value to gp_orderlyState at shutdown. |
|
// This hack is to avoid adding another NV variable. |
|
// |
|
extern BOOL g_DrtmPreStartup; |
|
#define PRE_STARTUP_FLAG 0x8000 |
|
// |
|
// |
|
// g_StartupLocality3 |
|
// |
|
// This value indicates that a TPM2_Startup() occured at locality 3. Otherwise, it at locality 0. The define for |
|
// STARTUP_LOCALITY_3 is to indicate that the startup was not at locality 0. This hack is to avoid adding |
|
// another NV variable. |
|
// |
|
extern BOOL g_StartupLocality3; |
|
#define STARTUP_LOCALITY_3 0x4000 |
|
// |
|
// |
|
// g_updateNV |
|
// |
|
// This flag indicates if NV should be updated at the end of a command. This flag is set to FALSE at the |
|
// beginning of each command in ExecuteCommand(). This flag is checked in ExecuteCommand() after the |
|
// detailed actions of a command complete. If the command execution was successful and this flag is SET, |
|
// any pending NV writes will be committed to NV. |
|
// |
|
extern BOOL g_updateNV; |
|
// |
|
// |
|
// g_clearOrderly |
|
// |
|
// This flag indicates if the execution of a command should cause the orderly state to be cleared. This flag |
|
// is set to FALSE at the beginning of each command in ExecuteCommand() and is checked in |
|
// ExecuteCommand() after the detailed actions of a command complete but before the check of |
|
// g_updateNV. If this flag is TRUE, and the orderly state is not SHUTDOWN_NONE, then the orderly state |
|
// in NV memory will be changed to SHUTDOWN_NONE. |
|
// |
|
extern BOOL g_clearOrderly; |
|
// |
|
// |
|
// |
|
// g_prevOrderlyState |
|
// |
|
// This location indicates how the TPM was shut down before the most recent TPM2_Startup(). This value, |
|
// along with the startup type, determines if the TPM should do a TPM Reset, TPM Restart, or TPM |
|
// Resume. |
|
// |
|
extern TPM_SU g_prevOrderlyState; |
|
// |
|
// |
|
// g_nvOk |
|
// |
|
// This value indicates if the NV integrity check was successful or not. If not and the failure was severe, then |
|
// the TPM would have been put into failure mode after it had been re-manufactured. If the NV failure was in |
|
// the area where the state-save data is kept, then this variable will have a value of FALSE indicating that a |
|
// TPM2_Startup(CLEAR) is required. |
|
// |
|
extern BOOL g_nvOk; |
|
// |
|
// |
|
// g_platformUnique |
|
// |
|
// This location contains the unique value(s) used to identify the TPM. It is loaded on every |
|
// _TPM2_Startup() The first value is used to seed the RNG. The second value is used as a vendor |
|
// authValue. The value used by the RNG would be the value derived from the chip unique value (such as |
|
// fused) with a dependency on the authorities of the code in the TPM boot path. The second would be |
|
// derived from the chip unique value with a dependency on the details of the code in the boot path. That is, |
|
// the first value depends on the various signers of the code and the second depends on what was signed. |
|
// The TPM vendor should not be able to know the first value but they are expected to know the second. |
|
// |
|
extern TPM2B_AUTH g_platformUniqueAuthorities; // Reserved for RNG |
|
extern TPM2B_AUTH g_platformUniqueDetails; // referenced by VENDOR_PERMANENT |
|
// |
|
// |
|
// Persistent Global Values |
|
// |
|
// Description |
|
// |
|
// The values in this section are global values that are persistent across power events. The lifetime of the |
|
// values determines the structure in which the value is placed. |
|
// |
|
// PERSISTENT_DATA |
|
// |
|
// This structure holds the persistent values that only change as a consequence of a specific Protected |
|
// Capability and are not affected by TPM power events (TPM2_Startup() or TPM2_Shutdown(). |
|
// |
|
typedef struct |
|
{ |
|
//********************************************************************************* |
|
// Hierarchy |
|
//********************************************************************************* |
|
// The values in this section are related to the hierarchies. |
|
BOOL disableClear; // TRUE if TPM2_Clear() using |
|
// lockoutAuth is disabled |
|
// Hierarchy authPolicies |
|
TPMI_ALG_HASH ownerAlg; |
|
TPMI_ALG_HASH endorsementAlg; |
|
TPMI_ALG_HASH lockoutAlg; |
|
TPM2B_DIGEST ownerPolicy; |
|
TPM2B_DIGEST endorsementPolicy; |
|
TPM2B_DIGEST lockoutPolicy; |
|
// Hierarchy authValues |
|
TPM2B_AUTH ownerAuth; |
|
TPM2B_AUTH endorsementAuth; |
|
TPM2B_AUTH lockoutAuth; |
|
// Primary Seeds |
|
TPM2B_SEED EPSeed; |
|
TPM2B_SEED SPSeed; |
|
TPM2B_SEED PPSeed; |
|
// Note there is a nullSeed in the state_reset memory. |
|
// Hierarchy proofs |
|
TPM2B_AUTH phProof; |
|
TPM2B_AUTH shProof; |
|
TPM2B_AUTH ehProof; |
|
// Note there is a nullProof in the state_reset memory. |
|
//********************************************************************************* |
|
// Reset Events |
|
//********************************************************************************* |
|
// A count that increments at each TPM reset and never get reset during the life |
|
// time of TPM. The value of this counter is initialized to 1 during TPM |
|
// manufacture process. |
|
UINT64 totalResetCount; |
|
// This counter increments on each TPM Reset. The counter is reset by |
|
// TPM2_Clear(). |
|
UINT32 resetCount; |
|
//********************************************************************************* |
|
// PCR |
|
//********************************************************************************* |
|
// This structure hold the policies for those PCR that have an update policy. |
|
// This implementation only supports a single group of PCR controlled by |
|
// policy. If more are required, then this structure would be changed to |
|
// an array. |
|
PCR_POLICY pcrPolicies; |
|
// This structure indicates the allocation of PCR. The structure contains a |
|
// list of PCR allocations for each implemented algorithm. If no PCR are |
|
// allocated for an algorithm, a list entry still exists but the bit map |
|
// will contain no SET bits. |
|
TPML_PCR_SELECTION pcrAllocated; |
|
//********************************************************************************* |
|
// Physical Presence |
|
//********************************************************************************* |
|
// The PP_LIST type contains a bit map of the commands that require physical |
|
// to be asserted when the authorization is evaluated. Physical presence will be |
|
// checked if the corresponding bit in the array is SET and if the authorization |
|
// handle is TPM_RH_PLATFORM. |
|
// |
|
// These bits may be changed with TPM2_PP_Commands(). |
|
BYTE ppList[((TPM_CC_PP_LAST - TPM_CC_PP_FIRST + 1) + 7)/8]; |
|
//********************************************************************************* |
|
// Dictionary attack values |
|
//********************************************************************************* |
|
// These values are used for dictionary attack tracking and control. |
|
UINT32 failedTries; // the current count of unexpired |
|
// authorization failures |
|
UINT32 maxTries; // number of unexpired authorization |
|
// failures before the TPM is in |
|
// lockout |
|
UINT32 recoveryTime; // time between authorization failures |
|
// before failedTries is decremented |
|
UINT32 lockoutRecovery; // time that must expire between |
|
// authorization failures associated |
|
// with lockoutAuth |
|
BOOL lockOutAuthEnabled; // TRUE if use of lockoutAuth is |
|
// allowed |
|
//***************************************************************************** |
|
// Orderly State |
|
//***************************************************************************** |
|
// The orderly state for current cycle |
|
TPM_SU orderlyState; |
|
//***************************************************************************** |
|
// Command audit values. |
|
//***************************************************************************** |
|
BYTE auditComands[((TPM_CC_LAST - TPM_CC_FIRST + 1) + 7) / 8]; |
|
TPMI_ALG_HASH auditHashAlg; |
|
UINT64 auditCounter; |
|
//***************************************************************************** |
|
// Algorithm selection |
|
//***************************************************************************** |
|
// |
|
// The 'algorithmSet' value indicates the collection of algorithms that are |
|
// currently in used on the TPM. The interpretation of value is vendor dependent. |
|
UINT32 algorithmSet; |
|
//***************************************************************************** |
|
// Firmware version |
|
//***************************************************************************** |
|
// The firmwareV1 and firmwareV2 values are instanced in TimeStamp.c. This is |
|
// a scheme used in development to allow determination of the linker build time |
|
// of the TPM. An actual implementation would implement these values in a way that |
|
// is consistent with vendor needs. The values are maintained in RAM for simplified |
|
// access with a master version in NV. These values are modified in a |
|
// vendor-specific way. |
|
// g_firmwareV1 contains the more significant 32-bits of the vendor version number. |
|
// In the reference implementation, if this value is printed as a hex |
|
// value, it will have the format of yyyymmdd |
|
UINT32 firmwareV1; |
|
// g_firmwareV1 contains the less significant 32-bits of the vendor version number. |
|
// In the reference implementation, if this value is printed as a hex |
|
// value, it will have the format of 00 hh mm ss |
|
UINT32 firmwareV2; |
|
} PERSISTENT_DATA; |
|
extern PERSISTENT_DATA gp; |
|
// |
|
// |
|
// ORDERLY_DATA |
|
// |
|
// The data in this structure is saved to NV on each TPM2_Shutdown(). |
|
// |
|
typedef struct orderly_data |
|
{ |
|
// |
|
//***************************************************************************** |
|
// TIME |
|
//***************************************************************************** |
|
// Clock has two parts. One is the state save part and one is the NV part. The |
|
// state save version is updated on each command. When the clock rolls over, the |
|
// NV version is updated. When the TPM starts up, if the TPM was shutdown in and |
|
// orderly way, then the sClock value is used to initialize the clock. If the |
|
// TPM shutdown was not orderly, then the persistent value is used and the safe |
|
// attribute is clear. |
|
UINT64 clock; // The orderly version of clock |
|
TPMI_YES_NO clockSafe; // Indicates if the clock value is |
|
// safe. |
|
//********************************************************************************* |
|
// DRBG |
|
//********************************************************************************* |
|
#ifdef _DRBG_STATE_SAVE |
|
// This is DRBG state data. This is saved each time the value of clock is |
|
// updated. |
|
DRBG_STATE drbgState; |
|
#endif |
|
} ORDERLY_DATA; |
|
extern ORDERLY_DATA go; |
|
// |
|
// |
|
// STATE_CLEAR_DATA |
|
// |
|
// This structure contains the data that is saved on Shutdown(STATE). and restored on Startup(STATE). |
|
// The values are set to their default settings on any Startup(Clear). In other words the data is only |
|
// persistent across TPM Resume. |
|
// If the comments associated with a parameter indicate a default reset value, the value is applied on each |
|
// Startup(CLEAR). |
|
// |
|
typedef struct state_clear_data |
|
{ |
|
//***************************************************************************** |
|
// Hierarchy Control |
|
//***************************************************************************** |
|
BOOL shEnable; // default reset is SET |
|
BOOL ehEnable; // default reset is SET |
|
BOOL phEnableNV; // default reset is SET |
|
TPMI_ALG_HASH platformAlg; // default reset is TPM_ALG_NULL |
|
TPM2B_DIGEST platformPolicy; // default reset is an Empty Buffer |
|
TPM2B_AUTH platformAuth; // default reset is an Empty Buffer |
|
//***************************************************************************** |
|
// PCR |
|
//***************************************************************************** |
|
// The set of PCR to be saved on Shutdown(STATE) |
|
PCR_SAVE pcrSave; // default reset is 0...0 |
|
// This structure hold the authorization values for those PCR that have an |
|
// update authorization. |
|
// This implementation only supports a single group of PCR controlled by |
|
// authorization. If more are required, then this structure would be changed to |
|
// an array. |
|
PCR_AUTHVALUE pcrAuthValues; |
|
} STATE_CLEAR_DATA; |
|
extern STATE_CLEAR_DATA gc; |
|
// |
|
// |
|
// |
|
// State Reset Data |
|
// |
|
// This structure contains data is that is saved on Shutdown(STATE) and restored on the subsequent |
|
// Startup(ANY). That is, the data is preserved across TPM Resume and TPM Restart. |
|
// If a default value is specified in the comments this value is applied on TPM Reset. |
|
// |
|
typedef struct state_reset_data |
|
{ |
|
//***************************************************************************** |
|
// Hierarchy Control |
|
//***************************************************************************** |
|
TPM2B_AUTH nullProof; // The proof value associated with |
|
// the TPM_RH_NULL hierarchy. The |
|
// default reset value is from the RNG. |
|
TPM2B_SEED nullSeed; // The seed value for the TPM_RN_NULL |
|
// hierarchy. The default reset value |
|
// is from the RNG. |
|
//***************************************************************************** |
|
// Context |
|
//***************************************************************************** |
|
// The 'clearCount' counter is incremented each time the TPM successfully executes |
|
// a TPM Resume. The counter is included in each saved context that has 'stClear' |
|
// SET (including descendants of keys that have 'stClear' SET). This prevents these |
|
// objects from being loaded after a TPM Resume. |
|
// If 'clearCount' at its maximum value when the TPM receives a Shutdown(STATE), |
|
// the TPM will return TPM_RC_RANGE and the TPM will only accept Shutdown(CLEAR). |
|
UINT32 clearCount; // The default reset value is 0. |
|
UINT64 objectContextID; // This is the context ID for a saved |
|
// object context. The default reset |
|
// value is 0. |
|
CONTEXT_SLOT contextArray[MAX_ACTIVE_SESSIONS]; |
|
// This is the value from which the |
|
// 'contextID' is derived. The |
|
// default reset value is {0}. |
|
CONTEXT_COUNTER contextCounter; // This array contains contains the |
|
// values used to track the version |
|
// numbers of saved contexts (see |
|
// Session.c in for details). The |
|
// default reset value is 0. |
|
//***************************************************************************** |
|
// Command Audit |
|
//***************************************************************************** |
|
// When an audited command completes, ExecuteCommand() checks the return |
|
// value. If it is TPM_RC_SUCCESS, and the command is an audited command, the |
|
// TPM will extend the cpHash and rpHash for the command to this value. If this |
|
// digest was the Zero Digest before the cpHash was extended, the audit counter |
|
// is incremented. |
|
TPM2B_DIGEST commandAuditDigest; // This value is set to an Empty Digest |
|
// by TPM2_GetCommandAuditDigest() or a |
|
// TPM Reset. |
|
//***************************************************************************** |
|
// Boot counter |
|
//***************************************************************************** |
|
UINT32 restartCount; // This counter counts TPM Restarts. |
|
// The default reset value is 0. |
|
// |
|
//********************************************************************************* |
|
// PCR |
|
//********************************************************************************* |
|
// This counter increments whenever the PCR are updated. This counter is preserved |
|
// across TPM Resume even though the PCR are not preserved. This is because |
|
// sessions remain active across TPM Restart and the count value in the session |
|
// is compared to this counter so this counter must have values that are unique |
|
// as long as the sessions are active. |
|
// NOTE: A platform-specific specification may designate that certain PCR changes |
|
// do not increment this counter to increment. |
|
UINT32 pcrCounter; // The default reset value is 0. |
|
#ifdef TPM_ALG_ECC |
|
//***************************************************************************** |
|
// ECDAA |
|
//***************************************************************************** |
|
UINT64 commitCounter; // This counter increments each time |
|
// TPM2_Commit() returns |
|
// TPM_RC_SUCCESS. The default reset |
|
// value is 0. |
|
TPM2B_NONCE commitNonce; // This random value is used to compute |
|
// the commit values. The default reset |
|
// value is from the RNG. |
|
// This implementation relies on the number of bits in g_commitArray being a |
|
// power of 2 (8, 16, 32, 64, etc.) and no greater than 64K. |
|
BYTE commitArray[16]; // The default reset value is {0}. |
|
#endif //TPM_ALG_ECC |
|
} STATE_RESET_DATA; |
|
extern STATE_RESET_DATA gr; |
|
// |
|
// |
|
// Global Macro Definitions |
|
// |
|
// This macro is used to ensure that a handle, session, or parameter number is only added if the response |
|
// code is FMT1. |
|
// |
|
#define RcSafeAddToResult(r, v) \ |
|
((r) + (((r) & RC_FMT1) ? (v) : 0)) |
|
// |
|
// This macro is used when a parameter is not otherwise referenced in a function. This macro is normally |
|
// not used by itself but is paired with a pAssert() within a #ifdef pAssert. If pAssert is not defined, then a |
|
// parameter might not otherwise be referenced. This macro uses the parameter from the perspective of the |
|
// compiler so it doesn't complain. |
|
// |
|
#define UNREFERENCED(a) ((void)(a)) |
|
// |
|
// |
|
// Private data |
|
// |
|
#if defined SESSION_PROCESS_C || defined GLOBAL_C || defined MANUFACTURE_C |
|
// |
|
// From SessionProcess.c |
|
// The following arrays are used to save command sessions information so that the command |
|
// handle/session buffer does not have to be preserved for the duration of the command. These arrays are |
|
// indexed by the session index in accordance with the order of sessions in the session area of the |
|
// command. |
|
// |
|
// Array of the authorization session handles |
|
// |
|
extern TPM_HANDLE s_sessionHandles[MAX_SESSION_NUM]; |
|
// |
|
// Array of authorization session attributes |
|
// |
|
extern TPMA_SESSION s_attributes[MAX_SESSION_NUM]; |
|
// |
|
// Array of handles authorized by the corresponding authorization sessions; and if none, then |
|
// TPM_RH_UNASSIGNED value is used |
|
// |
|
extern TPM_HANDLE s_associatedHandles[MAX_SESSION_NUM]; |
|
// |
|
// Array of nonces provided by the caller for the corresponding sessions |
|
// |
|
extern TPM2B_NONCE s_nonceCaller[MAX_SESSION_NUM]; |
|
// |
|
// Array of authorization values (HMAC's or passwords) for the corresponding sessions |
|
// |
|
extern TPM2B_AUTH s_inputAuthValues[MAX_SESSION_NUM]; |
|
// |
|
// Special value to indicate an undefined session index |
|
// |
|
#define UNDEFINED_INDEX (0xFFFF) |
|
// |
|
// Index of the session used for encryption of a response parameter |
|
// |
|
extern UINT32 s_encryptSessionIndex; |
|
// |
|
// Index of the session used for decryption of a command parameter |
|
// |
|
extern UINT32 s_decryptSessionIndex; |
|
// |
|
// Index of a session used for audit |
|
// |
|
extern UINT32 s_auditSessionIndex; |
|
// |
|
// The cpHash for an audit session |
|
// |
|
extern TPM2B_DIGEST s_cpHashForAudit; |
|
// |
|
// The cpHash for command audit |
|
// |
|
#ifdef TPM_CC_GetCommandAuditDigest |
|
extern TPM2B_DIGEST s_cpHashForCommandAudit; |
|
#endif |
|
// |
|
// Number of authorization sessions present in the command |
|
// |
|
extern UINT32 s_sessionNum; |
|
// |
|
// Flag indicating if NV update is pending for the lockOutAuthEnabled or failedTries DA parameter |
|
// |
|
extern BOOL s_DAPendingOnNV; |
|
#endif // SESSION_PROCESS_C |
|
#if defined DA_C || defined GLOBAL_C || defined MANUFACTURE_C |
|
// |
|
// From DA.c |
|
// |
|
// This variable holds the accumulated time since the last time that failedTries was decremented. This value |
|
// is in millisecond. |
|
// |
|
extern UINT64 s_selfHealTimer; |
|
// |
|
// This variable holds the accumulated time that the lockoutAuth has been blocked. |
|
// |
|
extern UINT64 s_lockoutTimer; |
|
#endif // DA_C |
|
#if defined NV_C || defined GLOBAL_C |
|
// |
|
// From NV.c |
|
// List of pre-defined address of reserved data |
|
// |
|
extern UINT32 s_reservedAddr[NV_RESERVE_LAST]; |
|
// |
|
// List of pre-defined reserved data size in byte |
|
// |
|
extern UINT32 s_reservedSize[NV_RESERVE_LAST]; |
|
// |
|
// Size of data in RAM index buffer |
|
// |
|
extern UINT32 s_ramIndexSize; |
|
// |
|
// Reserved RAM space for frequently updated NV Index. The data layout in ram buffer is {NV_handle(), |
|
// size of data, data} for each NV index data stored in RAM |
|
// |
|
extern BYTE s_ramIndex[RAM_INDEX_SPACE]; |
|
// |
|
// Address of size of RAM index space in NV |
|
// |
|
extern UINT32 s_ramIndexSizeAddr; |
|
// |
|
// Address of NV copy of RAM index space |
|
// |
|
extern UINT32 s_ramIndexAddr; |
|
// |
|
// Address of maximum counter value; an auxiliary variable to implement NV counters |
|
// |
|
extern UINT32 s_maxCountAddr; |
|
// |
|
// Beginning of NV dynamic area; starts right after the s_maxCountAddr and s_evictHandleMapAddr |
|
// variables |
|
// |
|
extern UINT32 s_evictNvStart; |
|
// |
|
// Beginning of NV dynamic area; also the beginning of the predefined reserved data area. |
|
// |
|
extern UINT32 s_evictNvEnd; |
|
// |
|
// NV availability is sampled as the start of each command and stored here so that its value remains |
|
// consistent during the command execution |
|
// |
|
extern TPM_RC s_NvStatus; |
|
#endif |
|
#if defined OBJECT_C || defined GLOBAL_C |
|
// |
|
// From Object.c |
|
// |
|
// This type is the container for an object. |
|
// |
|
typedef struct |
|
{ |
|
BOOL occupied; |
|
ANY_OBJECT object; |
|
} OBJECT_SLOT; |
|
// |
|
// This is the memory that holds the loaded objects. |
|
// |
|
extern OBJECT_SLOT s_objects[MAX_LOADED_OBJECTS]; |
|
#endif // OBJECT_C |
|
#if defined PCR_C || defined GLOBAL_C |
|
// |
|
// From PCR.c |
|
// |
|
typedef struct |
|
{ |
|
#ifdef TPM_ALG_SHA1 |
|
// SHA1 PCR |
|
BYTE sha1Pcr[SHA1_DIGEST_SIZE]; |
|
#endif |
|
#ifdef TPM_ALG_SHA256 |
|
// SHA256 PCR |
|
BYTE sha256Pcr[SHA256_DIGEST_SIZE]; |
|
#endif |
|
#ifdef TPM_ALG_SHA384 |
|
// SHA384 PCR |
|
BYTE sha384Pcr[SHA384_DIGEST_SIZE]; |
|
#endif |
|
#ifdef TPM_ALG_SHA512 |
|
// SHA512 PCR |
|
BYTE sha512Pcr[SHA512_DIGEST_SIZE]; |
|
#endif |
|
#ifdef TPM_ALG_SM3_256 |
|
// SHA256 PCR |
|
BYTE sm3_256Pcr[SM3_256_DIGEST_SIZE]; |
|
#endif |
|
} PCR; |
|
typedef struct |
|
{ |
|
unsigned int stateSave : 1; // if the PCR value should be |
|
// saved in state save |
|
unsigned int resetLocality : 5; // The locality that the PCR |
|
// can be reset |
|
unsigned int extendLocality : 5; // The locality that the PCR |
|
// can be extend |
|
} PCR_Attributes; |
|
extern PCR s_pcrs[IMPLEMENTATION_PCR]; |
|
#endif // PCR_C |
|
#if defined SESSION_C || defined GLOBAL_C |
|
// |
|
// From Session.c |
|
// Container for HMAC or policy session tracking information |
|
// |
|
typedef struct |
|
{ |
|
BOOL occupied; |
|
SESSION session; // session structure |
|
} SESSION_SLOT; |
|
extern SESSION_SLOT s_sessions[MAX_LOADED_SESSIONS]; |
|
// |
|
// |
|
// |
|
// |
|
// The index in conextArray that has the value of the oldest saved session context. When no context is |
|
// saved, this will have a value that is greater than or equal to MAX_ACTIVE_SESSIONS. |
|
// |
|
extern UINT32 s_oldestSavedSession; |
|
// |
|
// The number of available session slot openings. When this is 1, a session can't be created or loaded if the |
|
// GAP is maxed out. The exception is that the oldest saved session context can always be loaded |
|
// (assuming that there is a space in memory to put it) |
|
// |
|
extern int s_freeSessionSlots; |
|
#endif // SESSION_C |
|
// |
|
// From Manufacture.c |
|
// |
|
extern BOOL g_manufactured; |
|
#if defined POWER_C || defined GLOBAL_C |
|
// |
|
// From Power.c |
|
// This value indicates if a TPM2_Startup() commands has been receive since the power on event. This |
|
// flag is maintained in power simulation module because this is the only place that may reliably set this flag |
|
// to FALSE. |
|
// |
|
extern BOOL s_initialized; |
|
#endif // POWER_C |
|
#if defined MEMORY_LIB_C || defined GLOBAL_C |
|
// |
|
// The s_actionOutputBuffer should not be modifiable by the host system until the TPM has returned a |
|
// response code. The s_actionOutputBuffer should not be accessible until response parameter encryption, |
|
// if any, is complete. |
|
// |
|
extern UINT32 s_actionInputBuffer[1024]; // action input buffer |
|
extern UINT32 s_actionOutputBuffer[1024]; // action output buffer |
|
extern BYTE s_responseBuffer[MAX_RESPONSE_SIZE];// response buffer |
|
#endif // MEMORY_LIB_C |
|
// |
|
// From TPMFail.c |
|
// This value holds the address of the string containing the name of the function in which the failure |
|
// occurred. This address value isn't useful for anything other than helping the vendor to know in which file |
|
// the failure occurred. |
|
// |
|
#ifndef EMBEDDED_MODE |
|
extern jmp_buf g_jumpBuffer; // the jump buffer |
|
#endif |
|
extern BOOL g_inFailureMode; // Indicates that the TPM is in failure mode |
|
extern BOOL g_forceFailureMode; // flag to force failure mode during test |
|
#if defined TPM_FAIL_C || defined GLOBAL_C || 1 |
|
extern UINT32 s_failFunction; |
|
extern UINT32 s_failLine; // the line in the file at which |
|
// the error was signaled |
|
extern UINT32 s_failCode; // the error code used |
|
#endif // TPM_FAIL_C |
|
#endif // GLOBAL_H
|
|
|