esys_int.h

/* SPDX-License-Identifier: BSD-2-Clause */
/*******************************************************************************
 * Copyright 2017, Fraunhofer SIT sponsored by Infineon Technologies AG
 * All rights reserved.
 *******************************************************************************/
#ifndef ESYS_INT_H
#define ESYS_INT_H
 
#include <stddef.h> // for NULL, size_t
#include <stdint.h> // for int32_t
 
#include "esys_types.h"      // for IESYS_RESOURCE, IESYS_SESSION
#include "tss2_common.h"     // for TSS2_ESYS_RC_BAD_REFERENCE
#include "tss2_esys.h"       // for ESYS_TR, ESYS_CRYPTO_CALLBACKS
#include "tss2_sys.h"        // for TSS2_SYS_CONTEXT
#include "tss2_tcti.h"       // for TSS2_TCTI_CONTEXT
#include "tss2_tpm2_types.h" // for TPM2B_SENSITIVE_CREATE, TPM2B_AUTH, TPM...
 
#ifdef __cplusplus
extern "C" {
#endif

typedef struct RSRC_NODE_T {
    ESYS_TR esys_handle;                 
    TPM2B_AUTH          auth;            
    IESYS_RESOURCE      rsrc;            
    size_t              reference_count; 
    struct RSRC_NODE_T *next;            
} RSRC_NODE_T;
 
typedef struct {
    ESYS_TR       tpmKey;
    ESYS_TR       bind;
    TPM2_SE       sessionType;
    TPMI_ALG_HASH authHash;
    TPM2B_NONCE  *nonceCaller;
    TPM2B_NONCE   nonceCallerData;
    TPMT_SYM_DEF *symmetric;
    TPMT_SYM_DEF  symmetricData;
} StartAuthSession_IN;
 
typedef struct {
    TPM2B_SENSITIVE_CREATE *inSensitive;
    TPM2B_SENSITIVE_CREATE  inSensitiveData;
} CreatePrimary_IN;
 
typedef struct {
    TPM2B_SENSITIVE_CREATE *inSensitive;
    TPM2B_SENSITIVE_CREATE  inSensitiveData;
} Create_IN;
 
typedef struct {
    ESYS_TR saveHandle;
} ContextSave_IN;
 
typedef struct {
    TPMS_CONTEXT *context;
    TPMS_CONTEXT  contextData;
} ContextLoad_IN;
 
typedef struct {
    TPM2B_PUBLIC *inPublic;
    TPM2B_PUBLIC  inPublicData;
} Load_IN;
 
typedef struct {
    TPM2B_PUBLIC *inPublic;
    TPM2B_PUBLIC  inPublicData;
} LoadExternal_IN;
 
typedef struct {
    TPM2B_SENSITIVE_CREATE *inSensitive;
    TPM2B_SENSITIVE_CREATE  inSensitiveData;
    TPM2B_TEMPLATE         *inPublic;
    TPM2B_TEMPLATE          inPublicData;
} CreateLoaded_IN;
 
typedef struct {
    ESYS_TR            objectHandle;
    TPMI_DH_PERSISTENT persistentHandle;
} EvictControl_IN;
 
typedef struct {
    TPM2B_AUTH authData;
} HMAC_Start_IN;
 
typedef HMAC_Start_IN MAC_Start_IN;
 
typedef struct {
    ESYS_TR    authHandle;
    TPM2B_AUTH newAuth;
} HierarchyChangeAuth_IN;
 
typedef struct {
    ESYS_TR sequenceHandle;
} SequenceComplete_IN;
 
typedef struct {
    ESYS_TR policySession;
} Policy_IN;
 
typedef struct {
    ESYS_TR          nvIndex;
    TPM2B_AUTH       authData;
    TPM2B_NV_PUBLIC *publicInfo;
    TPM2B_NV_PUBLIC  publicInfoData;
} NV_IN;
 
typedef struct {
    ESYS_TR flushHandle;
} FlushContext_IN;
 
typedef struct {
    ESYS_TR    pcrHandle;
    TPM2B_AUTH authData;
} PCR_IN;

typedef union {
    StartAuthSession_IN    StartAuthSession;
    CreatePrimary_IN       CreatePrimary;
    Create_IN              Create;
    ContextSave_IN         ContextSave;
    ContextLoad_IN         ContextLoad;
    Load_IN                Load;
    LoadExternal_IN        LoadExternal;
    CreateLoaded_IN        CreateLoaded;
    EvictControl_IN        EvictControl;
    HMAC_Start_IN          HMAC_Start;
    MAC_Start_IN           MAC_Start;
    HierarchyChangeAuth_IN HierarchyChangeAuth;
    SequenceComplete_IN    SequenceComplete;
    Policy_IN              Policy;
    NV_IN                  NV;
    FlushContext_IN        FlushContext;
    PCR_IN                 PCR;
} IESYS_CMD_IN_PARAM;

enum ESYS_STATE {
    ESYS_STATE_INIT = 0,     
    ESYS_STATE_SENT,         
    ESYS_STATE_RESUBMISSION, 
    ESYS_STATE_INTERNALERROR 
};

struct ESYS_CONTEXT {
    enum ESYS_STATE   state;           
    TSS2_SYS_CONTEXT *sys;             
    ESYS_TR      esys_handle_cnt;      
    RSRC_NODE_T *rsrc_list;            
    int32_t      timeout;              
    ESYS_TR session_type[3];           
    RSRC_NODE_T *session_tab[3];       
    RSRC_NODE_T *auth_objects[3];      
    int          encryptNonceIdx;      
    TPM2B_NONCE *encryptNonce;         
    int authsCount;                    
    int submissionCount;               
    TPM2B_DATA         salt;           
    IESYS_CMD_IN_PARAM in;             
    ESYS_TR esys_handle;               
    TSS2_TCTI_CONTEXT *tcti_app_param; 
    void *dlhandle;                    
    IESYS_SESSION *enc_session;        
    ESYS_TR sav_session1;              
    ESYS_TR sav_session2;
    ESYS_TR sav_session3;
 
    ESYS_CRYPTO_CALLBACKS crypto_backend; 
};

#define ESYS_MAX_SUBMISSIONS 5

#define ESYS_ASSERT_NON_NULL(x)                                                                    \
    if ((x) == NULL) {                                                                             \
        LOG_ERROR(str(x) " == NULL.");                                                             \
        return TSS2_ESYS_RC_BAD_REFERENCE;                                                         \
    }
 
#ifdef __cplusplus
}
#endif
#endif /* ESYS_INT_H */