PassThrough

NAME
  PassThrough,
  CSSM_CSP_PassThrough,
  CSP_PassThrough     - Extend crypto functionality (CDSA)

SYNOPSIS
  # include <cssm.h>

   API:
       CSSM_RETURN CSSMAPI CSSM_CSP_PassThrough
       (CSSM_CC_HANDLE CCHandle,
       uint32 PassThroughId,
       const void *InData,
       void **OutData)
   SPI:
       CSSM_RETURN CSSMCSPI CSP_PassThrough
       (CSSM_CSP_HANDLE CSPHandle,
       CSSM_CC_HANDLE CCHandle,
       const CSSM_CONTEXT *Context,
       uint32 PassThroughId,
       const void *InData,
       void **OutData)

LIBRARY
  Common Security Services Manager library (CDSA$INCSSM300_SHR.EXE)

API PARAMETERS
  CCHandle (input)
          The handle that describes the context of this cryptographic
          operation.

  PassThroughId (input)
          An identifier specifying the custom function to be performed.

  InData (input)
          A pointer to a module, implementation-specific structure
          containing the input data.

  OutData (output)
          A pointer to a module, implementation-specific structure
          containing the output data. The service provider will
          allocate the memory for this structure.  The application
          should free the memory for the structure.

SPI PARAMETERS
  CSPHandle (input)
          Handle of the CSP supporting the PassThrough function.

  Context (input)
          Pointer to CSSM_CONTEXT structure that describes the
          attributes with this custom context structure.

DESCRIPTION
  The CSSM_CSP_PassThrough() (CSSM API), or CSP_PassThrough() (CSP SPI),
  function is provided to allow CSP developers to extend the crypto
  functionality of the CSSM API.

NOTES
  The CSP_EventNotify() function is used by the CSSM Core to interact
  with the CSP module.

  Because this function is only exposed to CSSM as a function pointer,
  the function name internal to the CSP can be assigned at the
  discretion of the CSP module developer. However, the parameter list
  and return value types must match those defined for this function.

  The error codes given in this section constitute the generic error
  codes, which may be used by all CSP libraries to describe common
  error conditions.  CSP module developers may also define their own
  module-specific error codes.

RETURN VALUE
  A CSSM_RETURN value indicating success or specifying a particular
  error condition. The value CSSM_OK indicates success. All other
  values represent an error condition.

ERRORS
  Errors are described in the CDSA technical standard.  See CDSA.

       CSSMERR_CSP_INVALID_PASSTHROUGH_ID

SEE ALSO
  Books

  Intel CDSA Application Developer's Guide (see CDSA)

  Other Help Topics