/* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* This file defines the public API for libpkix . These are the top - level
* functions in the library . They perform the primary operations of this
* library : building and validating chains of X . 509 certificates .
*
*/
#ifndef _PKIX_H
#define _PKIX_H
#include "pkixt.h"
#include "pkix_util.h"
#include "pkix_results.h"
#include "pkix_certstore.h"
#include "pkix_certsel.h"
#include "pkix_crlsel.h"
#include "pkix_checker.h"
#include "pkix_revchecker.h"
#include "pkix_pl_system.h"
#include "pkix_pl_pki.h"
#include "pkix_params.h"
#ifdef __cplusplus
extern "C" {
#endif
/* General
*
* Please refer to the libpkix Programmer ' s Guide for detailed information
* about how to use the libpkix library . Certain key warnings and notices from
* that document are repeated here for emphasis .
*
* All identifiers in this file ( and all public identifiers defined in
* libpkix ) begin with " PKIX_ " . Private identifiers only intended for use
* within the library begin with " pkix_ " .
*
* A function returns NULL upon success , and a PKIX_Error pointer upon failure .
*
* Unless otherwise noted , for all accessor ( gettor ) functions that return a
* PKIX_PL_Object pointer , callers should assume that this pointer refers to a
* shared object . Therefore , the caller should treat this shared object as
* read - only and should not modify this shared object . When done using the
* shared object , the caller should release the reference to the object by
* using the PKIX_PL_Object_DecRef function .
*
* While a function is executing , if its arguments ( or anything referred to by
* its arguments ) are modified , free ' d , or destroyed , the function ' s behavior
* is undefined .
*
*/
/*
* FUNCTION : PKIX_Initialize
* DESCRIPTION :
*
* No PKIX_ * types and functions should be used before this function is called
* and returns successfully . This function should only be called once . If it
* is called more than once , the behavior is undefined .
*
* NSS applications are expected to call NSS_Init , and need not know that
* NSS will call this function ( with " platformInitNeeded " set to PKIX_FALSE ) .
* PKIX applications are expected instead to call this function with
* " platformInitNeeded " set to PKIX_TRUE .
*
* This function initializes data structures critical to the operation of
* libpkix . It also ensures that the API version ( major . minor ) desired by the
* caller ( the " desiredMajorVersion " , " minDesiredMinorVersion " , and
* " maxDesiredMinorVersion " ) is compatible with the API version supported by
* the library . As such , the library must support the " desiredMajorVersion "
* of the API and must support a minor version that falls between
* " minDesiredMinorVersion " and " maxDesiredMinorVersion " , inclusive . If
* compatibility exists , the function returns NULL and stores the library ' s
* actual minor version at " pActualMinorVersion " ( which may be greater than
* " desiredMinorVersion " ) . If no compatibility exists , the function returns a
* PKIX_Error pointer . If the caller wishes to specify that the largest
* minor version available should be used , then maxDesiredMinorVersion should
* be set to the macro PKIX_MAX_MINOR_VERSION ( defined in pkixt . h ) .
*
* PARAMETERS :
* " platformInitNeeded "
* Boolean indicating whether the platform layer initialization code
* has previously been run , or should be called from this function .
* " desiredMajorVersion "
* The major version of the libpkix API the application wishes to use .
* " minDesiredMinorVersion "
* The minimum minor version of the libpkix API the application wishes
* to use .
* " maxDesiredMinorVersion "
* The maximum minor version of the libpkix API the application wishes
* to use .
* " pActualMinorVersion "
* Address where PKIX_UInt32 will be stored . Must be non - NULL .
* " pPlContext "
* Address at which platform - specific context pointer is stored . Must
* be non - NULL .
* THREAD SAFETY :
* Not Thread Safe
* RETURNS :
* Returns NULL if the function succeeds .
* Returns an Initialize Error if the function fails in a non - fatal way .
* Returns a Fatal Error if the function fails in an unrecoverable way .
*/
PKIX_Error *
PKIX_Initialize(
PKIX_Boolean platformInitNeeded,
PKIX_UInt32 desiredMajorVersion,
PKIX_UInt32 minDesiredMinorVersion,
PKIX_UInt32 maxDesiredMinorVersion,
PKIX_UInt32 *pActualMinorVersion,
void **pPlContext);
/*
* FUNCTION : PKIX_Shutdown
* DESCRIPTION :
*
* This function deallocates any memory used by libpkix and shuts down any
* ongoing operations . This function should only be called once . If it is
* called more than once , the behavior is undefined .
*
* No PKIX_ * types and functions should be used after this function is called
* and returns successfully .
* PARAMETERS :
* " plContext " - Platform - specific context pointer .
* THREAD SAFETY :
* Not Thread Safe
* RETURNS :
* Returns NULL if the function succeeds .
* Returns a Fatal Error if the function fails in an unrecoverable way .
*/
PKIX_Error *
PKIX_Shutdown(
void *plContext);
/*
* FUNCTION : PKIX_ValidateChain
* DESCRIPTION :
*
* This function attempts to validate the CertChain that has been set in the
* ValidateParams pointed to by " params " using an RFC 3280 - compliant
* algorithm . If successful , this function returns NULL and stores the
* ValidateResult at " pResult " , which holds additional information , such as
* the policy tree and the target ' s public key . If unsuccessful , an Error is
* returned . Note : This function does not currently support non - blocking I / O .
*
* If " pVerifyTree " is non - NULL , a chain of VerifyNodes is created which
* tracks the results of the validation . That is , either each node in the
* chain has a NULL Error component , or the last node contains an Error
* which indicates why the validation failed .
*
* PARAMETERS :
* " params "
* Address of ValidateParams used to validate CertChain . Must be non - NULL .
* " pResult "
* Address where object pointer will be stored . Must be non - NULL .
* " pVerifyTree "
* Address where a VerifyTree is stored , if non - NULL .
* " plContext "
* Platform - specific context pointer .
* THREAD SAFETY :
* Thread Safe ( See Thread Safety Definitions in Programmer ' s Guide )
* RETURNS :
* Returns NULL if the function succeeds .
* Returns a Validate Error if the function fails in a non - fatal way .
* Returns a Fatal Error if the function fails in an unrecoverable way .
*/
PKIX_Error *
PKIX_ValidateChain(
PKIX_ValidateParams *params,
PKIX_ValidateResult **pResult,
PKIX_VerifyNode **pVerifyTree,
void *plContext);
/*
* FUNCTION : PKIX_ValidateChain_NB
* DESCRIPTION :
*
* This function is the equivalent of PKIX_ValidateChain , except that it
* supports non - blocking I / O . When called with " pNBIOContext " pointing to NULL
* it initiates a new chain validation as in PKIX_ValidateChain , ignoring the
* value in all input variables except " params " . If forced to suspend
* processing by a WOULDBLOCK return from some operation , such as a CertStore
* request , it stores the platform - dependent I / O context at " pNBIOContext " and
* stores other intermediate variables at " pCertIndex " , " pAnchorIndex " ,
* " pCheckerIndex " , " pRevChecking " , and " pCheckers " .
*
* When called subsequently with that non - NULL value at " pNBIOContext " , it
* relies on those intermediate values to be untouched , and it resumes chain
* validation where it left off . Its behavior is undefined if any of the
* intermediate values was not preserved .
*
* PARAMETERS :
* " params "
* Address of ValidateParams used to validate CertChain . Must be non - NULL .
* " pCertIndex "
* The UInt32 value of the index to the Cert chain , indicating which Cert
* is currently being processed .
* " pAnchorIndex "
* The UInt32 value of the index to the Anchor chain , indicating which
* Trust Anchor is currently being processed .
* " pCheckerIndex "
* The UInt32 value of the index to the List of CertChainCheckers ,
* indicating which Checker is currently processing .
* " pRevChecking "
* The Boolean flag indicating whether normal checking or revocation
* checking is occurring for the Cert indicated by " pCertIndex " .
* " pCheckers "
* The address of the List of CertChainCheckers . Must be non - NULL .
* " pNBIOContext "
* The address of the platform - dependend I / O context . Must be a non - NULL
* pointer to a NULL value for the call to initiate chain validation .
* " pResult "
* Address where ValidateResult object pointer will be stored . Must be
* non - NULL .
* " pVerifyTree "
* Address where a VerifyTree is stored , if non - NULL .
* " plContext "
* Platform - specific context pointer .
* THREAD SAFETY :
* Thread Safe ( see Thread Safety Definitions in Programmer ' s Guide )
* RETURNS :
* Returns NULL if the function succeeds .
* Returns a VALIDATE Error if the function fails in a non - fatal way .
* Returns a Fatal Error if the function fails in an unrecoverable way .
*/ PKIX_Error *
PKIX_ValidateChain_NB(
PKIX_ValidateParams *params,
PKIX_UInt32 *pCertIndex,
PKIX_UInt32 *pAnchorIndex,
PKIX_UInt32 *pCheckerIndex,
PKIX_Boolean *pRevChecking,
PKIX_List **pCheckers,
void **pNBIOContext,
PKIX_ValidateResult **pResult,
PKIX_VerifyNode **pVerifyTree,
void *plContext);
/*
* FUNCTION : PKIX_BuildChain
* DESCRIPTION :
*
* If called with a NULL " state " , this function attempts to build and validate
* a CertChain according to the ProcessingParams pointed to by " params " , using
* an RFC 3280 - compliant validation algorithm . If successful , this function
* returns NULL and stores the BuildResult at " pResult " , which holds the built
* CertChain , as well as additional information , such as the policy tree and
* the target ' s public key . If unsuccessful , an Error is returned .
*
* If the chain building is blocked by a CertStore using non - blocking I / O , this
* function stores platform - dependent non - blocking I / O context at
* " pNBIOContext " , its state at " pState " , and NULL at " pResult " . The caller
* may be able to determine , in a platform - dependent way , when the I / O has
* completed . In any case , calling the function again with " pState " containing
* the returned value will allow the chain building to resume .
*
* If chain building is completed , either successfully or unsuccessfully , NULL
* is stored at " pNBIOContext " .
*
* If " pVerifyTree " is non - NULL , a tree of VerifyNodes is created which
* tracks the results of the building . That is , each node of the tree either
* has a NULL Error component , or it is a leaf node and it contains an Error
* which indicates why the chain building could not proceed on this branch .
*
* PARAMETERS :
* " params "
* Address of ProcessingParams used to build and validate CertChain .
* Must be non - NULL .
* " pNBIOContext "
* Address where platform - dependent information is store if the build
* is suspended waiting for non - blocking I / O . Must be non - NULL .
* " pState "
* Address of BuildChain state . Must be NULL on initial call , and the
* value previously returned on subsequent calls .
* " pResult "
* Address where object pointer will be stored . Must be non - NULL .
* " pVerifyTree "
* Address where a VerifyTree is stored , if non - NULL .
* " plContext "
* Platform - specific context pointer .
* THREAD SAFETY :
* Thread Safe ( See Thread Safety Definitions in Programmer ' s Guide )
* RETURNS :
* Returns NULL if the function succeeds .
* Returns a Build Error if the function fails in a non - fatal way .
* Returns a Fatal Error if the function fails in an unrecoverable way .
*/
PKIX_Error *
PKIX_BuildChain(
PKIX_ProcessingParams *params,
void **pNBIOContext,
void **pState,
PKIX_BuildResult **pResult,
PKIX_VerifyNode **pVerifyNode,
void *plContext);
#ifdef __cplusplus
}
#endif
#endif /* _PKIX_H */
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