// This file was extracted from the TCG Published // Trusted Platform Module Library // Part 4: Supporting Routines // Family "2.0" // Level 00 Revision 01.16 // October 30, 2014 #ifndef GLOBAL_H #define GLOBAL_H //#define SELF_TEST #include "TpmBuildSwitches.h" #include "Tpm.h" #include "TPMB.h" #include "CryptoEngine.h" #ifndef EMBEDDED_MODE #include #endif // // // // Defines and Types // // Unreferenced Parameter // // This define is used to eliminate the compiler warning about an unreferenced parameter. Basically, it tells // the compiler that it is not an accident that the parameter is unreferenced. // #ifndef UNREFERENCED_PARAMETER # define UNREFERENCED_PARAMETER(a) (a) #endif #include "bits.h" // // // Crypto Self-Test Values // // Define these values here if the AlgorithmTests() project is not used // #ifndef SELF_TEST extern ALGORITHM_VECTOR g_implementedAlgorithms; extern ALGORITHM_VECTOR g_toTest; #else LIB_IMPORT extern ALGORITHM_VECTOR g_implementedAlgorithms; LIB_IMPORT extern ALGORITHM_VECTOR g_toTest; #endif // // These macros are used in CryptUtil() to invoke the incremental self test. // #define TEST(alg) if(TEST_BIT(alg, g_toTest)) CryptTestAlgorithm(alg, NULL) // // Use of TPM_ALG_NULL is reserved for RSAEP/RSADP testing. If someone is wanting to test a hash with // that value, don't do it. // #define TEST_HASH(alg) \ if( TEST_BIT(alg, g_toTest) \ && (alg != ALG_NULL_VALUE)) \ CryptTestAlgorithm(alg, NULL) // // // Hash and HMAC State Structures // // These definitions are for the types that can be in a hash state structure. These types are used in the // crypto utilities // typedef BYTE HASH_STATE_TYPE; #define HASH_STATE_EMPTY ((HASH_STATE_TYPE) 0) #define HASH_STATE_HASH ((HASH_STATE_TYPE) 1) #define HASH_STATE_HMAC ((HASH_STATE_TYPE) 2) // // A HASH_STATE structure contains an opaque hash stack state. A caller would use this structure when // performing incremental hash operations. The state is updated on each call. If type is an HMAC_STATE, // or HMAC_STATE_SEQUENCE then state is followed by the HMAC key in oPad format. // typedef struct { CPRI_HASH_STATE state; // hash state HASH_STATE_TYPE type; // type of the context } HASH_STATE; // // // // // An HMAC_STATE structure contains an opaque HMAC stack state. A caller would use this structure // when performing incremental HMAC operations. This structure contains a hash state and an HMAC key // and allows slightly better stack optimization than adding an HMAC key to each hash state. // typedef struct { HASH_STATE hashState; // the hash state TPM2B_HASH_BLOCK hmacKey; // the HMAC key } HMAC_STATE; // // // Other Types // // An AUTH_VALUE is a BYTE array containing a digest (TPMU_HA) // typedef BYTE AUTH_VALUE[sizeof(TPMU_HA)]; // // A TIME_INFO is a BYTE array that can contain a TPMS_TIME_INFO // typedef BYTE TIME_INFO[sizeof(TPMS_TIME_INFO)]; // // A NAME is a BYTE array that can contain a TPMU_NAME // typedef BYTE NAME[sizeof(TPMU_NAME)]; // // // Loaded Object Structures // // Description // // The structures in this section define the object layout as it exists in TPM memory. // Two types of objects are defined: an ordinary object such as a key, and a sequence object that may be a // hash, HMAC, or event. // // OBJECT_ATTRIBUTES // // An OBJECT_ATTRIBUTES structure contains the variable attributes of an object. These properties are // not part of the public properties but are used by the TPM in managing the object. An // OBJECT_ATTRIBUTES is used in the definition of the OBJECT data type. // typedef struct { unsigned publicOnly : 1; //0) SET if only the public portion of // an object is loaded unsigned epsHierarchy : 1; //1) SET if the object belongs to EPS // Hierarchy unsigned ppsHierarchy : 1; //2) SET if the object belongs to PPS // Hierarchy unsigned spsHierarchy : 1; //3) SET f the object belongs to SPS // Hierarchy unsigned evict : 1; //4) SET if the object is a platform or // owner evict object. Platform- // evict object belongs to PPS // hierarchy, owner-evict object // belongs to SPS or EPS hierarchy. // This bit is also used to mark a // completed sequence object so it // will be flush when the // SequenceComplete command succeeds. unsigned primary : 1; //5) SET for a primary object unsigned temporary : 1; //6) SET for a temporary object unsigned stClear : 1; //7) SET for an stClear object unsigned hmacSeq : 1; //8) SET for an HMAC sequence object unsigned hashSeq : 1; //9) SET for a hash sequence object unsigned eventSeq : 1; //10) SET for an event sequence object unsigned ticketSafe : 1; //11) SET if a ticket is safe to create // for hash sequence object unsigned firstBlock : 1; //12) SET if the first block of hash // data has been received. It // works with ticketSafe bit unsigned isParent : 1; //13) SET if the key has the proper // attributes to be a parent key unsigned privateExp : 1; //14) SET when the private exponent // of an RSA key has been validated. unsigned reserved : 1; //15) reserved bits. unused. } OBJECT_ATTRIBUTES; // // // OBJECT Structure // // An OBJECT structure holds the object public, sensitive, and meta-data associated. This structure is // implementation dependent. For this implementation, the structure is not optimized for space but rather for // clarity of the reference implementation. Other implementations may choose to overlap portions of the // structure that are not used simultaneously. These changes would necessitate changes to the source code // but those changes would be compatible with the reference implementation. // typedef struct { // The attributes field is required to be first followed by the publicArea. // This allows the overlay of the object structure and a sequence structure OBJECT_ATTRIBUTES attributes; // object attributes TPMT_PUBLIC publicArea; // public area of an object TPMT_SENSITIVE sensitive; // sensitive area of an object #ifdef TPM_ALG_RSA TPM2B_PUBLIC_KEY_RSA privateExponent; // Additional field for the private // exponent of an RSA key. #endif TPM2B_NAME qualifiedName; // object qualified name TPMI_DH_OBJECT evictHandle; // if the object is an evict object, // the original handle is kept here. // The 'working' handle will be the // handle of an object slot. TPM2B_NAME name; // Name of the object name. Kept here // to avoid repeatedly computing it. } OBJECT; #ifdef EMBEDDED_MODE // This build time assert serves as a rudimentary check for changes // to the OBJECT structure (which is serialized to NVmem). Whenever // the OBJECT struct changes, NV_FORMAT_VERSION ought to be bumped. struct size_check { char a[sizeof(OBJECT) == 1536 ? 1 : -1]; }; #endif // // // HASH_OBJECT Structure // // This structure holds a hash sequence object or an event sequence object. // The first four components of this structure are manually set to be the same as the first four components of // the object structure. This prevents the object from being inadvertently misused as sequence objects // occupy the same memory as a regular object. A debug check is present to make sure that the offsets are // what they are supposed to be. // typedef struct { OBJECT_ATTRIBUTES attributes; // The attributes of the HASH object TPMI_ALG_PUBLIC type; // algorithm TPMI_ALG_HASH nameAlg; // name algorithm TPMA_OBJECT objectAttributes; // object attributes // The data below is unique to a sequence object TPM2B_AUTH auth; // auth for use of sequence union { HASH_STATE hashState[HASH_COUNT]; HMAC_STATE hmacState; } state; } HASH_OBJECT; // // // ANY_OBJECT // // This is the union for holding either a sequence object or a regular object. // typedef union { OBJECT entity; HASH_OBJECT hash; } ANY_OBJECT; // // // AUTH_DUP Types // // These values are used in the authorization processing. // typedef UINT32 AUTH_ROLE; #define AUTH_NONE ((AUTH_ROLE)(0)) #define AUTH_USER ((AUTH_ROLE)(1)) #define AUTH_ADMIN ((AUTH_ROLE)(2)) #define AUTH_DUP ((AUTH_ROLE)(3)) // // // Active Session Context // // Description // // The structures in this section define the internal structure of a session context. // // SESSION_ATTRIBUTES // // The attributes in the SESSION_ATTRIBUTES structure track the various properties of the session. It // maintains most of the tracking state information for the policy session. It is used within the SESSION // structure. // typedef struct { unsigned isPolicy : 1; //1) SET if the session may only // be used for policy unsigned isAudit : 1; //2) SET if the session is used // for audit unsigned isBound : 1; //3) SET if the session is bound to // with an entity. // This attribute will be CLEAR if // either isPolicy or isAudit is SET. unsigned iscpHashDefined : 1;//4) SET if the cpHash has been defined // This attribute is not SET unless // 'isPolicy' is SET. unsigned isAuthValueNeeded : 1; //5) SET if the authValue is required // for computing the session HMAC. // This attribute is not SET unless // isPolicy is SET. unsigned isPasswordNeeded : 1; //6) SET if a password authValue is // required for authorization // This attribute is not SET unless // isPolicy is SET. unsigned isPPRequired : 1; //7) SET if physical presence is // required to be asserted when the // authorization is checked. // This attribute is not SET unless // isPolicy is SET. unsigned isTrialPolicy : 1; //8) SET if the policy session is // created for trial of the policy's // policyHash generation. // This attribute is not SET unless // isPolicy is SET. unsigned isDaBound : 1; //9) SET if the bind entity had noDA // CLEAR. If this is SET, then an // auth failure using this session // will count against lockout even // if the object being authorized is // exempt from DA. unsigned isLockoutBound : 1; //10)SET if the session is bound to // lockoutAuth. unsigned requestWasBound : 1;//11) SET if the session is being used // with the bind entity. If SET // the authValue will not be use // in the response HMAC computation. unsigned checkNvWritten : 1; //12) SET if the TPMA_NV_WRITTEN // attribute needs to be checked // when the policy is used for // authorization for NV access. // If this is SET for any other // type, the policy will fail. unsigned nvWrittenState : 1; //13) SET if TPMA_NV_WRITTEN is // required to be SET. } SESSION_ATTRIBUTES; // // // SESSION Structure // // The SESSION structure contains all the context of a session except for the associated contextID. // // NOTE: The contextID of a session is only relevant when the session context is stored off the TPM. // typedef struct { TPM_ALG_ID authHashAlg; // session hash algorithm TPM2B_NONCE nonceTPM; // last TPM-generated nonce for // this session TPMT_SYM_DEF symmetric; // session symmetric algorithm (if any) TPM2B_AUTH sessionKey; // session secret value used for // generating HMAC and encryption keys SESSION_ATTRIBUTES attributes; // session attributes TPM_CC commandCode; // command code (policy session) TPMA_LOCALITY commandLocality; // command locality (policy session) UINT32 pcrCounter; // PCR counter value when PCR is // included (policy session) // If no PCR is included, this // value is 0. UINT64 startTime; // value of TPMS_CLOCK_INFO.clock when // the session was started (policy // // session) UINT64 timeOut; // timeout relative to // TPMS_CLOCK_INFO.clock // There is no timeout if this value // is 0. union { TPM2B_NAME boundEntity; // value used to track the entity to // which the session is bound TPM2B_DIGEST cpHash; // the required cpHash value for the // command being authorized } u1; // 'boundEntity' and 'cpHash' may // share the same space to save memory union { TPM2B_DIGEST auditDigest; // audit session digest TPM2B_DIGEST policyDigest; // policyHash } u2; // audit log and policyHash may // share space to save memory } SESSION; // // // PCR // // PCR_SAVE Structure // // The PCR_SAVE structure type contains the PCR data that are saved across power cycles. Only the static // PCR are required to be saved across power cycles. The DRTM and resettable PCR are not saved. The // number of static and resettable PCR is determined by the platform-specific specification to which the TPM // is built. // typedef struct { #ifdef TPM_ALG_SHA1 BYTE sha1[NUM_STATIC_PCR][SHA1_DIGEST_SIZE]; #endif #ifdef TPM_ALG_SHA256 BYTE sha256[NUM_STATIC_PCR][SHA256_DIGEST_SIZE]; #endif #ifdef TPM_ALG_SHA384 BYTE sha384[NUM_STATIC_PCR][SHA384_DIGEST_SIZE]; #endif #ifdef TPM_ALG_SHA512 BYTE sha512[NUM_STATIC_PCR][SHA512_DIGEST_SIZE]; #endif #ifdef TPM_ALG_SM3_256 BYTE sm3_256[NUM_STATIC_PCR][SM3_256_DIGEST_SIZE]; #endif // This counter increments whenever the PCR are updated. // NOTE: A platform-specific specification may designate // certain PCR changes as not causing this counter // to increment. UINT32 pcrCounter; } PCR_SAVE; // // // // PCR_POLICY // // This structure holds the PCR policies, one for each group of PCR controlled by policy. // typedef struct { TPMI_ALG_HASH hashAlg[NUM_POLICY_PCR_GROUP]; TPM2B_DIGEST a; TPM2B_DIGEST policy[NUM_POLICY_PCR_GROUP]; } PCR_POLICY; // // // PCR_AUTHVALUE // // This structure holds the PCR policies, one for each group of PCR controlled by policy. // typedef struct { TPM2B_DIGEST auth[NUM_AUTHVALUE_PCR_GROUP]; } PCR_AUTHVALUE; // // // Startup // // SHUTDOWN_NONE // // Part 2 defines the two shutdown/startup types that may be used in TPM2_Shutdown() and // TPM2_Starup(). This additional define is used by the TPM to indicate that no shutdown was received. // // NOTE: This is a reserved value. // #define SHUTDOWN_NONE (TPM_SU)(0xFFFF) // // // STARTUP_TYPE // // This enumeration is the possible startup types. The type is determined by the combination of // TPM2_ShutDown() and TPM2_Startup(). // typedef enum { SU_RESET, SU_RESTART, SU_RESUME } STARTUP_TYPE; // // // NV // // NV_RESERVE // // This enumeration defines the master list of the elements of a reserved portion of NV. This list includes all // the pre-defined data that takes space in NV, either as persistent data or as state save data. The // enumerations are used as indexes into an array of offset values. The offset values then are used to index // into NV. This is method provides an imperfect analog to an actual NV implementation. // typedef enum { // Entries below mirror the PERSISTENT_DATA structure. These values are written // to NV as individual items. // hierarchy NV_DISABLE_CLEAR, NV_OWNER_ALG, NV_ENDORSEMENT_ALG, NV_LOCKOUT_ALG, NV_OWNER_POLICY, NV_ENDORSEMENT_POLICY, NV_LOCKOUT_POLICY, NV_OWNER_AUTH, NV_ENDORSEMENT_AUTH, NV_LOCKOUT_AUTH, NV_EP_SEED, NV_SP_SEED, NV_PP_SEED, NV_PH_PROOF, NV_SH_PROOF, NV_EH_PROOF, // Time NV_TOTAL_RESET_COUNT, NV_RESET_COUNT, // PCR NV_PCR_POLICIES, NV_PCR_ALLOCATED, // 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