instance.c

来自「支持SSL v2/v3, TLS, PKCS #5, PKCS #7, PKCS」· C语言 代码 · 共 1,311 行 · 第 1/2 页

  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return (CK_SESSION_HANDLE)0;
  }

  if( CKR_OK != nssCKFWSession_verifyPointer(fwSession) ) {
    return (CK_SESSION_HANDLE)0;
  }
#endif /* NSSDEBUG */

  return nssCKFWSession_GetHandle(fwSession);
  /* look it up and assert? */
}

/*
 * nssCKFWInstance_CreateObjectHandle
 *
 */
NSS_IMPLEMENT CK_OBJECT_HANDLE
nssCKFWInstance_CreateObjectHandle
(
  NSSCKFWInstance *fwInstance,
  NSSCKFWObject *fwObject,
  CK_RV *pError
)
{
  CK_OBJECT_HANDLE hObject;

#ifdef NSSDEBUG
  if( (CK_RV *)NULL == pError ) {
    return (CK_OBJECT_HANDLE)0;
  }

  *pError = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != *pError ) {
    return (CK_OBJECT_HANDLE)0;
  }
#endif /* NSSDEBUG */

  *pError = nssCKFWMutex_Lock(fwInstance->mutex);
  if( CKR_OK != *pError ) {
    return (CK_OBJECT_HANDLE)0;
  }

  hObject = ++(fwInstance->lastObjectHandle);

  *pError = nssCKFWObject_SetHandle(fwObject, hObject);
  if( CKR_OK != *pError ) {
    hObject = (CK_OBJECT_HANDLE)0;
    goto done;
  }

  *pError = nssCKFWHash_Add(fwInstance->objectHandleHash, 
              (const void *)hObject, (const void *)fwObject);
  if( CKR_OK != *pError ) {
    hObject = (CK_OBJECT_HANDLE)0;
    goto done;
  }

 done:
  (void)nssCKFWMutex_Unlock(fwInstance->mutex);
  return hObject;
}

/*
 * nssCKFWInstance_ResolveObjectHandle
 *
 */
NSS_IMPLEMENT NSSCKFWObject *
nssCKFWInstance_ResolveObjectHandle
(
  NSSCKFWInstance *fwInstance,
  CK_OBJECT_HANDLE hObject
)
{
  NSSCKFWObject *fwObject;

#ifdef NSSDEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return (NSSCKFWObject *)NULL;
  }
#endif /* NSSDEBUG */

  if( CKR_OK != nssCKFWMutex_Lock(fwInstance->mutex) ) {
    return (NSSCKFWObject *)NULL;
  }

  fwObject = (NSSCKFWObject *)nssCKFWHash_Lookup(
                fwInstance->objectHandleHash, (const void *)hObject);

  /* Assert(hObject == nssCKFWObject_GetHandle(fwObject)) */

  (void)nssCKFWMutex_Unlock(fwInstance->mutex);
  return fwObject;
}

/*
 * nssCKFWInstance_ReassignObjectHandle
 *
 */
NSS_IMPLEMENT CK_RV
nssCKFWInstance_ReassignObjectHandle
(
  NSSCKFWInstance *fwInstance,
  CK_OBJECT_HANDLE hObject,
  NSSCKFWObject *fwObject
)
{
  CK_RV error = CKR_OK;
  NSSCKFWObject *oldObject;

#ifdef NSSDEBUG
  error = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != error ) {
    return error;
  }
#endif /* NSSDEBUG */

  error = nssCKFWMutex_Lock(fwInstance->mutex);
  if( CKR_OK != error ) {
    return error;
  }

  oldObject = (NSSCKFWObject *)nssCKFWHash_Lookup(
                 fwInstance->objectHandleHash, (const void *)hObject);
  /* Assert(hObject == nssCKFWObject_GetHandle(oldObject) */
  (void)nssCKFWObject_SetHandle(oldObject, (CK_SESSION_HANDLE)0);
  nssCKFWHash_Remove(fwInstance->objectHandleHash, (const void *)hObject);

  error = nssCKFWObject_SetHandle(fwObject, hObject);
  if( CKR_OK != error ) {
    goto done;
  }
  error = nssCKFWHash_Add(fwInstance->objectHandleHash, 
            (const void *)hObject, (const void *)fwObject);

 done:
  (void)nssCKFWMutex_Unlock(fwInstance->mutex);
  return error;
}

/*
 * nssCKFWInstance_DestroyObjectHandle
 *
 */
NSS_IMPLEMENT void
nssCKFWInstance_DestroyObjectHandle
(
  NSSCKFWInstance *fwInstance,
  CK_OBJECT_HANDLE hObject
)
{
  NSSCKFWObject *fwObject;

#ifdef NSSDEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return;
  }
#endif /* NSSDEBUG */

  if( CKR_OK != nssCKFWMutex_Lock(fwInstance->mutex) ) {
    return;
  }

  fwObject = (NSSCKFWObject *)nssCKFWHash_Lookup(
                fwInstance->objectHandleHash, (const void *)hObject);
  /* Assert(hObject = nssCKFWObject_GetHandle(fwObject)) */
  nssCKFWHash_Remove(fwInstance->objectHandleHash, (const void *)hObject);
  (void)nssCKFWObject_SetHandle(fwObject, (CK_SESSION_HANDLE)0);

  (void)nssCKFWMutex_Unlock(fwInstance->mutex);
  return;
}

/*
 * nssCKFWInstance_FindObjectHandle
 *
 */
NSS_IMPLEMENT CK_OBJECT_HANDLE
nssCKFWInstance_FindObjectHandle
(
  NSSCKFWInstance *fwInstance,
  NSSCKFWObject *fwObject
)
{
#ifdef NSSDEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return (CK_OBJECT_HANDLE)0;
  }

  if( CKR_OK != nssCKFWObject_verifyPointer(fwObject) ) {
    return (CK_OBJECT_HANDLE)0;
  }
#endif /* NSSDEBUG */
  
  return nssCKFWObject_GetHandle(fwObject);
}

/*
 * nssCKFWInstance_GetNSlots
 *
 */
NSS_IMPLEMENT CK_ULONG
nssCKFWInstance_GetNSlots
(
  NSSCKFWInstance *fwInstance,
  CK_RV *pError
)
{
#ifdef NSSDEBUG
  if( (CK_RV *)NULL == pError ) {
    return (CK_ULONG)0;
  }

  *pError = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != *pError ) {
    return (CK_ULONG)0;
  }
#endif /* NSSDEBUG */

  *pError = CKR_OK;
  return fwInstance->nSlots;
}  

/*
 * nssCKFWInstance_GetCryptokiVersion
 *
 */
NSS_IMPLEMENT CK_VERSION
nssCKFWInstance_GetCryptokiVersion
(
  NSSCKFWInstance *fwInstance
)
{
  CK_VERSION rv;

#ifdef NSSDEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    rv.major = rv.minor = 0;
    return rv;
  }
#endif /* NSSDEBUG */

  if( CKR_OK != nssCKFWMutex_Lock(fwInstance->mutex) ) {
    rv.major = rv.minor = 0;
    return rv;
  }

  if( (0 != fwInstance->cryptokiVersion.major) ||
      (0 != fwInstance->cryptokiVersion.minor) ) {
    rv = fwInstance->cryptokiVersion;
    goto done;
  }

  if( (void *)NULL != (void *)fwInstance->mdInstance->GetCryptokiVersion ) {
    fwInstance->cryptokiVersion = fwInstance->mdInstance->GetCryptokiVersion(
      fwInstance->mdInstance, fwInstance);
  } else {
    fwInstance->cryptokiVersion.major = 2;
    fwInstance->cryptokiVersion.minor = 1;
  }

  rv = fwInstance->cryptokiVersion;

 done:
  (void)nssCKFWMutex_Unlock(fwInstance->mutex);
  return rv;
}

/*
 * nssCKFWInstance_GetManufacturerID
 *
 */
NSS_IMPLEMENT CK_RV
nssCKFWInstance_GetManufacturerID
(
  NSSCKFWInstance *fwInstance,
  CK_CHAR manufacturerID[32]
)
{
  CK_RV error = CKR_OK;

#ifdef NSSDEBUG
  if( (CK_CHAR_PTR)NULL == manufacturerID ) {
    return CKR_ARGUMENTS_BAD;
  }

  error = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != error ) {
    return error;
  }
#endif /* NSSDEBUG */

  error = nssCKFWMutex_Lock(fwInstance->mutex);
  if( CKR_OK != error ) {
    return error;
  }

  if( (NSSUTF8 *)NULL == fwInstance->manufacturerID ) {
    if( (void *)NULL != (void *)fwInstance->mdInstance->GetManufacturerID ) {
      fwInstance->manufacturerID = fwInstance->mdInstance->GetManufacturerID(
        fwInstance->mdInstance, fwInstance, &error);
      if( ((NSSUTF8 *)NULL == fwInstance->manufacturerID) && (CKR_OK != error) ) {
        goto done;
      }
    } else {
      fwInstance->manufacturerID = (NSSUTF8 *) "";
    }
  }

  (void)nssUTF8_CopyIntoFixedBuffer(fwInstance->manufacturerID, (char *)manufacturerID, 32, ' ');
  error = CKR_OK;

 done:
  (void)nssCKFWMutex_Unlock(fwInstance->mutex);
  return error;
}

/*
 * nssCKFWInstance_GetFlags
 *
 */
NSS_IMPLEMENT CK_ULONG
nssCKFWInstance_GetFlags
(
  NSSCKFWInstance *fwInstance
)
{
#ifdef NSSDEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return (CK_ULONG)0;
  }
#endif /* NSSDEBUG */

  /* No "instance flags" are yet defined by Cryptoki. */
  return (CK_ULONG)0;
}

/*
 * nssCKFWInstance_GetLibraryDescription
 *
 */
NSS_IMPLEMENT CK_RV
nssCKFWInstance_GetLibraryDescription
(
  NSSCKFWInstance *fwInstance,
  CK_CHAR libraryDescription[32]
)
{
  CK_RV error = CKR_OK;

#ifdef NSSDEBUG
  if( (CK_CHAR_PTR)NULL == libraryDescription ) {
    return CKR_ARGUMENTS_BAD;
  }

  error = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != error ) {
    return error;
  }
#endif /* NSSDEBUG */

  error = nssCKFWMutex_Lock(fwInstance->mutex);
  if( CKR_OK != error ) {
    return error;
  }

  if( (NSSUTF8 *)NULL == fwInstance->libraryDescription ) {
    if( (void *)NULL != (void *)fwInstance->mdInstance->GetLibraryDescription ) {
      fwInstance->libraryDescription = fwInstance->mdInstance->GetLibraryDescription(
        fwInstance->mdInstance, fwInstance, &error);
      if( ((NSSUTF8 *)NULL == fwInstance->libraryDescription) && (CKR_OK != error) ) {
        goto done;
      }
    } else {
      fwInstance->libraryDescription = (NSSUTF8 *) "";
    }
  }

  (void)nssUTF8_CopyIntoFixedBuffer(fwInstance->libraryDescription, (char *)libraryDescription, 32, ' ');
  error = CKR_OK;

 done:
  (void)nssCKFWMutex_Unlock(fwInstance->mutex);
  return error;
}

/*
 * nssCKFWInstance_GetLibraryVersion
 *
 */
NSS_IMPLEMENT CK_VERSION
nssCKFWInstance_GetLibraryVersion
(
  NSSCKFWInstance *fwInstance
)
{
  CK_VERSION rv;

#ifdef NSSDEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    rv.major = rv.minor = 0;
    return rv;
  }
#endif /* NSSDEBUG */

  if( CKR_OK != nssCKFWMutex_Lock(fwInstance->mutex) ) {
    rv.major = rv.minor = 0;
    return rv;
  }

  if( (0 != fwInstance->libraryVersion.major) ||
      (0 != fwInstance->libraryVersion.minor) ) {
    rv = fwInstance->libraryVersion;
    goto done;
  }

  if( (void *)NULL != (void *)fwInstance->mdInstance->GetLibraryVersion ) {
    fwInstance->libraryVersion = fwInstance->mdInstance->GetLibraryVersion(
      fwInstance->mdInstance, fwInstance);
  } else {
    fwInstance->libraryVersion.major = 0;
    fwInstance->libraryVersion.minor = 1;
  }

  rv = fwInstance->libraryVersion;
 done:
  (void)nssCKFWMutex_Unlock(fwInstance->mutex);
  return rv;
}

/*
 * nssCKFWInstance_GetModuleHandlesSessionObjects
 *
 */
NSS_IMPLEMENT CK_BBOOL
nssCKFWInstance_GetModuleHandlesSessionObjects
(
  NSSCKFWInstance *fwInstance
)
{
#ifdef NSSDEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return CK_FALSE;
  }
#endif /* NSSDEBUG */

  return fwInstance->moduleHandlesSessionObjects;
}

/*
 * nssCKFWInstance_GetSlots
 *
 */
NSS_IMPLEMENT NSSCKFWSlot **
nssCKFWInstance_GetSlots
(
  NSSCKFWInstance *fwInstance,
  CK_RV *pError
)
{
#ifdef NSSDEBUG
  if( (CK_RV *)NULL == pError ) {
    return (NSSCKFWSlot **)NULL;
  }

  *pError = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != *pError ) {
    return (NSSCKFWSlot **)NULL;
  }
#endif /* NSSDEBUG */

  return fwInstance->fwSlotList;
}

/*
 * nssCKFWInstance_WaitForSlotEvent
 *
 */
NSS_IMPLEMENT NSSCKFWSlot *
nssCKFWInstance_WaitForSlotEvent
(
  NSSCKFWInstance *fwInstance,
  CK_BBOOL block,
  CK_RV *pError
)
{
  NSSCKFWSlot *fwSlot = (NSSCKFWSlot *)NULL;
  NSSCKMDSlot *mdSlot;
  CK_ULONG i, n;

#ifdef NSSDEBUG
  if( (CK_RV *)NULL == pError ) {
    return (NSSCKFWSlot *)NULL;
  }

  *pError = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != *pError ) {
    return (NSSCKFWSlot *)NULL;
  }

  switch( block ) {
  case CK_TRUE:
  case CK_FALSE:
    break;
  default:
    *pError = CKR_ARGUMENTS_BAD;
    return (NSSCKFWSlot *)NULL;
  }
#endif /* NSSDEBUG */

  if( (void *)NULL == (void *)fwInstance->mdInstance->WaitForSlotEvent ) {
    *pError = CKR_NO_EVENT;
    return (NSSCKFWSlot *)NULL;
  }

  mdSlot = fwInstance->mdInstance->WaitForSlotEvent(
    fwInstance->mdInstance,
    fwInstance,
    block,
    pError
  );

  if( (NSSCKMDSlot *)NULL == mdSlot ) {
    return (NSSCKFWSlot *)NULL;
  }

  n = nssCKFWInstance_GetNSlots(fwInstance, pError);
  if( ((CK_ULONG)0 == n) && (CKR_OK != *pError) ) {
    return (NSSCKFWSlot *)NULL;
  }

  for( i = 0; i < n; i++ ) {
    if( fwInstance->mdSlotList[i] == mdSlot ) {
      fwSlot = fwInstance->fwSlotList[i];
      break;
    }
  }

  if( (NSSCKFWSlot *)NULL == fwSlot ) {
    /* Internal error */
    *pError = CKR_GENERAL_ERROR;
    return (NSSCKFWSlot *)NULL;
  }

  return fwSlot;
}

/*
 * NSSCKFWInstance_GetMDInstance
 *
 */
NSS_IMPLEMENT NSSCKMDInstance *
NSSCKFWInstance_GetMDInstance
(
  NSSCKFWInstance *fwInstance
)
{
#ifdef DEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return (NSSCKMDInstance *)NULL;
  }
#endif /* DEBUG */

  return nssCKFWInstance_GetMDInstance(fwInstance);
}

/*
 * NSSCKFWInstance_GetArena
 *
 */
NSS_IMPLEMENT NSSArena *
NSSCKFWInstance_GetArena
(
  NSSCKFWInstance *fwInstance,
  CK_RV *pError
)
{
#ifdef DEBUG
  if( (CK_RV *)NULL == pError ) {
    return (NSSArena *)NULL;
  }

  *pError = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != *pError ) {
    return (NSSArena *)NULL;
  }
#endif /* DEBUG */

  return nssCKFWInstance_GetArena(fwInstance, pError);
}

/*
 * NSSCKFWInstance_MayCreatePthreads
 *
 */
NSS_IMPLEMENT CK_BBOOL
NSSCKFWInstance_MayCreatePthreads
(
  NSSCKFWInstance *fwInstance
)
{
#ifdef DEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return CK_FALSE;
  }
#endif /* DEBUG */

  return nssCKFWInstance_MayCreatePthreads(fwInstance);
}

/*
 * NSSCKFWInstance_CreateMutex
 *
 */
NSS_IMPLEMENT NSSCKFWMutex *
NSSCKFWInstance_CreateMutex
(
  NSSCKFWInstance *fwInstance,
  NSSArena *arena,
  CK_RV *pError
)
{
#ifdef DEBUG
  if( (CK_RV *)NULL == pError ) {
    return (NSSCKFWMutex *)NULL;
  }

  *pError = nssCKFWInstance_verifyPointer(fwInstance);
  if( CKR_OK != *pError ) {
    return (NSSCKFWMutex *)NULL;
  }
#endif /* DEBUG */

  return nssCKFWInstance_CreateMutex(fwInstance, arena, pError);
}

/*
 * NSSCKFWInstance_GetConfigurationData
 *
 */
NSS_IMPLEMENT NSSUTF8 *
NSSCKFWInstance_GetConfigurationData
(
  NSSCKFWInstance *fwInstance
)
{
#ifdef DEBUG
  if( CKR_OK != nssCKFWInstance_verifyPointer(fwInstance) ) {
    return (NSSUTF8 *)NULL;
  }
#endif /* DEBUG */

  return nssCKFWInstance_GetConfigurationData(fwInstance);
}