HP OpenVMS Systems Documentation

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HP Open Source Security for OpenVMS Volume 1: Common Data Security Architecture > CDSA API Functions

CSSM_Introduce

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NAME

CSSM_Introduce — Identify an executable module (CDSA)

SYNOPSIS

# include <cssm.h>
CSSM_RETURN CSSMAPI CSSM_Introduce
(const CSSM_GUID *ModuleID,
CSSM_KEY_HIERARCHY KeyHierarchy)

LIBRARY

Common Security Services Manager library (cdsa$incssm300_shr.exe)

PARAMETERS

ModuleID (input) 

The CSSM_GUID of the calling library or other library that might call CDSA interfaces. The GUID is used to locate the signed manifest credentials of the named module to calculate module integrity information.

KeyHierarchy (input)
  

The CSSM_KEY_HIERARCHY option directing CSSM what embedded key to use when verifying integrity of the named module.

DESCRIPTION

The CSSM_Introduce() function identifies a dynamically loadable executable module (for example, DLL) to the CSSM framework. CSSM uses the ModuleID information to locate the signed manifest and library on the host platform. The Module Directory Service (MDS) should be used to obtain the information. CSSM performs an integrity cross-check on the module identified by ModuleID and caches the result in an internal structure. The integrity cross-check uses the KeyHierarchy information to determine which classes of embedded public keys must serve as anchors when doing certificate path validation. If the export key hierarchy is specified, the set of export privileges contained in the manifest are retrieved from the manifest and saved with the integrity state information in the cache. Privileges granted to a module are accepted only if the manifest sections containing the privilege set have been signed by a principal in the export key hierarchy class and that hash of the module binary is part of the hash of the privilege attributes.

The CSSM_Introduce() can be called at any time after CSSM_Init(), by any module, on behalf of any module.

Once a module is introduced into CSSM the load location of the module must not change. If the load location changes then the module must be reintroduced. Once introduced, the module load location, integrity, and privilege information is held until CSSM_Terminate() is called or the process terminates. Initialization of internal data structures maintaining the table of introductions is performed when CSSM_Init() is called.

If CSSM_Introduce() is called on behalf of another module, then the caller needs to make sure that the other module is loaded into the process address space. If the library is already loaded into process address space, but a reference to the library cannot be obtained, a different error is returned (CSSMERR_CSSM_LIB_REF_NOT_FOUND).

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.

CSSMERR_CSSM_INVALID_KEY_HIERARCHY
CSSMERR_CSSM_LIB_REF_NOT_FOUND

SEE ALSO

Intel CDSA Application Developer's Guide