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PassThrough(3)
NAME
  PassThrough, CSSM_CSP_PassThrough, CSP_PassThrough - Extend crypto
  functionality (CDSA)

SYNOPSIS
  # include <cdsa/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 (libcssm.so)

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_intro(3).

       CSSMERR_CSP_INVALID_PASSTHROUGH_ID

SEE ALSO
  Books

  Intel CDSA Application Developer's Guide (see CDSA_intro(3))

  Reference Pages

Index for Section 3

Alphabetical listing for P

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