| Index: nss/mozilla/security/nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c
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| ===================================================================
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| --- nss/mozilla/security/nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c	(revision 0)
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| +++ nss/mozilla/security/nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c	(revision 0)
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| @@ -0,0 +1,339 @@
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| +/* ***** BEGIN LICENSE BLOCK *****
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| + * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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| + *
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| + * The contents of this file are subject to the Mozilla Public License Version
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| + * 1.1 (the "License"); you may not use this file except in compliance with
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| + * the License. You may obtain a copy of the License at
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| + * http://www.mozilla.org/MPL/
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| + *
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| + * Software distributed under the License is distributed on an "AS IS" basis,
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| + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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| + * for the specific language governing rights and limitations under the
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| + * License.
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| + *
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| + * The Original Code is the PKIX-C library.
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| + *
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| + * The Initial Developer of the Original Code is
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| + * Sun Microsystems, Inc.
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| + * Portions created by the Initial Developer are
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| + * Copyright 2004-2007 Sun Microsystems, Inc.  All Rights Reserved.
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| + *
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| + * Contributor(s):
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| + *   Sun Microsystems, Inc.
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| + *
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| + * Alternatively, the contents of this file may be used under the terms of
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| + * either the GNU General Public License Version 2 or later (the "GPL"), or
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| + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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| + * in which case the provisions of the GPL or the LGPL are applicable instead
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| + * of those above. If you wish to allow use of your version of this file only
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| + * under the terms of either the GPL or the LGPL, and not to allow others to
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| + * use your version of this file under the terms of the MPL, indicate your
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| + * decision by deleting the provisions above and replace them with the notice
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| + * and other provisions required by the GPL or the LGPL. If you do not delete
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| + * the provisions above, a recipient may use your version of this file under
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| + * the terms of any one of the MPL, the GPL or the LGPL.
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| + *
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| + * ***** END LICENSE BLOCK ***** */
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| +/*
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| + * pkix_basicconstraintschecker.c
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| + *
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| + * Functions for basic constraints validation
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| + *
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| + */
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| +
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| +#include "pkix_basicconstraintschecker.h"
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| +
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| +/* --Private-BasicConstraintsCheckerState-Functions------------------------- */
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| +
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| +/*
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| + * FUNCTION: pkix_BasicConstraintsCheckerState_Destroy
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| + * (see comments for PKIX_PL_DestructorCallback in pkix_pl_system.h)
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| + */
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| +static PKIX_Error *
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| +pkix_BasicConstraintsCheckerState_Destroy(
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| +        PKIX_PL_Object *object,
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| +        void *plContext)
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| +{
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| +        pkix_BasicConstraintsCheckerState *state = NULL;
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| +
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| +        PKIX_ENTER(BASICCONSTRAINTSCHECKERSTATE,
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| +                    "pkix_BasicConstraintsCheckerState_Destroy");
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| +
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| +        PKIX_NULLCHECK_ONE(object);
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| +
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| +        /* Check that this object is a basic constraints checker state */
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| +        PKIX_CHECK(pkix_CheckType
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| +                (object, PKIX_BASICCONSTRAINTSCHECKERSTATE_TYPE, plContext),
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| +                PKIX_OBJECTNOTBASICCONSTRAINTSCHECKERSTATE);
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| +
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| +        state = (pkix_BasicConstraintsCheckerState *)object;
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| +
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| +        PKIX_DECREF(state->basicConstraintsOID);
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| +
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| +cleanup:
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| +
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| +        PKIX_RETURN(BASICCONSTRAINTSCHECKERSTATE);
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| +}
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| +
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| +/*
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| + * FUNCTION: pkix_BasicConstraintsCheckerState_RegisterSelf
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| + * DESCRIPTION:
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| + *  Registers PKIX_CERT_TYPE and its related functions with systemClasses[]
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| + * THREAD SAFETY:
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| + *  Not Thread Safe - for performance and complexity reasons
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| + *
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| + *  Since this function is only called by PKIX_PL_Initialize, which should
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| + *  only be called once, it is acceptable that this function is not
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| + *  thread-safe.
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| + */
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| +PKIX_Error *
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| +pkix_BasicConstraintsCheckerState_RegisterSelf(void *plContext)
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| +{
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| +        extern pkix_ClassTable_Entry systemClasses[PKIX_NUMTYPES];
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| +        pkix_ClassTable_Entry entry;
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| +
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| +        PKIX_ENTER(BASICCONSTRAINTSCHECKERSTATE,
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| +                "pkix_BasicConstraintsCheckerState_RegisterSelf");
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| +
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| +        entry.description = "BasicConstraintsCheckerState";
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| +        entry.objCounter = 0;
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| +        entry.typeObjectSize = sizeof(pkix_BasicConstraintsCheckerState);
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| +        entry.destructor = pkix_BasicConstraintsCheckerState_Destroy;
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| +        entry.equalsFunction = NULL;
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| +        entry.hashcodeFunction = NULL;
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| +        entry.toStringFunction = NULL;
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| +        entry.comparator = NULL;
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| +        entry.duplicateFunction = NULL;
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| +
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| +        systemClasses[PKIX_BASICCONSTRAINTSCHECKERSTATE_TYPE] = entry;
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| +
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| +        PKIX_RETURN(BASICCONSTRAINTSCHECKERSTATE);
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| +}
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| +
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| +/*
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| + * FUNCTION: pkix_BasicConstraintsCheckerState_Create
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| + * DESCRIPTION:
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| + *
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| + *  Creates a new BasicConstraintsCheckerState using the number of certs in
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| + *  the chain represented by "certsRemaining" and stores it at "pState".
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| + *
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| + * PARAMETERS:
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| + *  "certsRemaining"
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| + *      Number of certificates in the chain.
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| + *  "pState"
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| + *      Address where object pointer will be stored. Must be non-NULL.
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| + *  "plContext"
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| + *      Platform-specific context pointer.
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| + * THREAD SAFETY:
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| + *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
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| + * RETURNS:
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| + *  Returns NULL if the function succeeds.
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| + *  Returns a BasicConstraintsCheckerState Error if the function fails in a
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| + *      non-fatal way.
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| + *  Returns a Fatal Error if the function fails in an unrecoverable way.
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| + */
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| +static PKIX_Error *
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| +pkix_BasicConstraintsCheckerState_Create(
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| +        PKIX_UInt32 certsRemaining,
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| +        pkix_BasicConstraintsCheckerState **pState,
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| +        void *plContext)
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| +{
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| +        pkix_BasicConstraintsCheckerState *state = NULL;
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| +
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| +        PKIX_ENTER(BASICCONSTRAINTSCHECKERSTATE,
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| +                    "pkix_BasicConstraintsCheckerState_Create");
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| +
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| +        PKIX_NULLCHECK_ONE(pState);
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| +
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| +        PKIX_CHECK(PKIX_PL_Object_Alloc
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| +                    (PKIX_BASICCONSTRAINTSCHECKERSTATE_TYPE,
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| +                    sizeof (pkix_BasicConstraintsCheckerState),
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| +                    (PKIX_PL_Object **)&state,
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| +                    plContext),
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| +                    PKIX_COULDNOTCREATEBASICCONSTRAINTSSTATEOBJECT);
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| +
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| +        /* initialize fields */
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| +        state->certsRemaining = certsRemaining;
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| +        state->maxPathLength = PKIX_UNLIMITED_PATH_CONSTRAINT;
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| +
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| +        PKIX_CHECK(PKIX_PL_OID_Create
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| +                    (PKIX_BASICCONSTRAINTS_OID,
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| +                    &state->basicConstraintsOID,
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| +                    plContext),
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| +                    PKIX_OIDCREATEFAILED);
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| +
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| +        *pState = state;
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| +        state = NULL;
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| +
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| +cleanup:
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| +
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| +        PKIX_DECREF(state);
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| +
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| +        PKIX_RETURN(BASICCONSTRAINTSCHECKERSTATE);
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| +}
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| +
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| +/* --Private-BasicConstraintsChecker-Functions------------------------------ */
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| +
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| +/*
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| + * FUNCTION: pkix_BasicConstraintsChecker_Check
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| + * (see comments for PKIX_CertChainChecker_CheckCallback in pkix_checker.h)
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| + */
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| +PKIX_Error *
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| +pkix_BasicConstraintsChecker_Check(
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| +        PKIX_CertChainChecker *checker,
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| +        PKIX_PL_Cert *cert,
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| +        PKIX_List *unresolvedCriticalExtensions,  /* list of PKIX_PL_OID */
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| +        void **pNBIOContext,
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| +        void *plContext)
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| +{
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| +        PKIX_PL_CertBasicConstraints *basicConstraints = NULL;
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| +        pkix_BasicConstraintsCheckerState *state = NULL;
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| +        PKIX_Boolean caFlag = PKIX_FALSE;
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| +        PKIX_Int32 pathLength = 0;
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| +        PKIX_Int32 maxPathLength_now;
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| +        PKIX_Boolean isSelfIssued = PKIX_FALSE;
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| +
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| +        PKIX_ENTER(CERTCHAINCHECKER, "pkix_BasicConstraintsChecker_Check");
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| +        PKIX_NULLCHECK_THREE(checker, cert, pNBIOContext);
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| +
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| +        *pNBIOContext = NULL; /* we never block on pending I/O */
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| +
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| +        PKIX_CHECK(PKIX_CertChainChecker_GetCertChainCheckerState
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| +                    (checker, (PKIX_PL_Object **)&state, plContext),
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| +                    PKIX_CERTCHAINCHECKERGETCERTCHAINCHECKERSTATEFAILED);
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| +
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| +        state->certsRemaining--;
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| +
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| +        if (state->certsRemaining != 0) {
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| +
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| +                PKIX_CHECK(PKIX_PL_Cert_GetBasicConstraints
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| +                    (cert, &basicConstraints, plContext),
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| +                    PKIX_CERTGETBASICCONSTRAINTSFAILED);
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| +
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| +                /* get CA Flag and path length */
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| +                if (basicConstraints != NULL) {
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| +                        PKIX_CHECK(PKIX_PL_BasicConstraints_GetCAFlag
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| +                            (basicConstraints,
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| +                            &caFlag,
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| +                            plContext),
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| +                            PKIX_BASICCONSTRAINTSGETCAFLAGFAILED);
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| +
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| +                if (caFlag == PKIX_TRUE) {
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| +                        PKIX_CHECK
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| +                            (PKIX_PL_BasicConstraints_GetPathLenConstraint
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| +                            (basicConstraints,
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| +                            &pathLength,
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| +                            plContext),
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| +                            PKIX_BASICCONSTRAINTSGETPATHLENCONSTRAINTFAILED);
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| +                }
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| +
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| +                }else{
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| +                        caFlag = PKIX_FALSE;
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| +                        pathLength = PKIX_UNLIMITED_PATH_CONSTRAINT;
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| +                }
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| +
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| +                PKIX_CHECK(pkix_IsCertSelfIssued
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| +                        (cert,
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| +                        &isSelfIssued,
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| +                        plContext),
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| +                        PKIX_ISCERTSELFISSUEDFAILED);
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| +
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| +                maxPathLength_now = state->maxPathLength;
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| +
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| +                if (isSelfIssued != PKIX_TRUE) {
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| +
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| +                    /* Not last CA Cert, but maxPathLength is down to zero */
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| +                    if (maxPathLength_now == 0) {
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| +                        PKIX_ERROR(PKIX_BASICCONSTRAINTSVALIDATIONFAILEDLN);
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| +                    }
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| +
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| +                    if (caFlag == PKIX_FALSE) {
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| +                        PKIX_ERROR(PKIX_BASICCONSTRAINTSVALIDATIONFAILEDCA);
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| +                    }
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| +
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| +                    if (maxPathLength_now > 0) { /* can be unlimited (-1) */
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| +                        maxPathLength_now--;
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| +                    }
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| +
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| +                }
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| +
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| +                if (caFlag == PKIX_TRUE) {
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| +                    if (maxPathLength_now == PKIX_UNLIMITED_PATH_CONSTRAINT){
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| +                            maxPathLength_now = pathLength;
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| +                    } else {
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| +                            /* If pathLength is not specified, don't set */
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| +                        if (pathLength != PKIX_UNLIMITED_PATH_CONSTRAINT) {
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| +                            maxPathLength_now =
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| +                                    (maxPathLength_now > pathLength)?
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| +                                    pathLength:maxPathLength_now;
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| +                        }
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| +                    }
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| +                }
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| +
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| +                state->maxPathLength = maxPathLength_now;
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| +        }
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| +
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| +        /* Remove Basic Constraints Extension OID from list */
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| +        if (unresolvedCriticalExtensions != NULL) {
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| +
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| +                PKIX_CHECK(pkix_List_Remove
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| +                            (unresolvedCriticalExtensions,
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| +                            (PKIX_PL_Object *) state->basicConstraintsOID,
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| +                            plContext),
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| +                            PKIX_LISTREMOVEFAILED);
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| +        }
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| +
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| +
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| +        PKIX_CHECK(PKIX_CertChainChecker_SetCertChainCheckerState
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| +                    (checker, (PKIX_PL_Object *)state, plContext),
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| +                    PKIX_CERTCHAINCHECKERSETCERTCHAINCHECKERSTATEFAILED);
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| +
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| +
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| +cleanup:
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| +        PKIX_DECREF(state);
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| +        PKIX_DECREF(basicConstraints);
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| +        PKIX_RETURN(CERTCHAINCHECKER);
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| +
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| +}
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| +
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| +/*
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| + * FUNCTION: pkix_BasicConstraintsChecker_Initialize
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| + * DESCRIPTION:
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| + *  Registers PKIX_CERT_TYPE and its related functions with systemClasses[]
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| + * THREAD SAFETY:
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| + *  Not Thread Safe - for performance and complexity reasons
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| + *
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| + *  Since this function is only called by PKIX_PL_Initialize, which should
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| + *  only be called once, it is acceptable that this function is not
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| + *  thread-safe.
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| + */
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| +PKIX_Error *
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| +pkix_BasicConstraintsChecker_Initialize(
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| +        PKIX_UInt32 certsRemaining,
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| +        PKIX_CertChainChecker **pChecker,
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| +        void *plContext)
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| +{
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| +        pkix_BasicConstraintsCheckerState *state = NULL;
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| +
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| +        PKIX_ENTER(CERTCHAINCHECKER, "pkix_BasicConstraintsChecker_Initialize");
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| +        PKIX_NULLCHECK_ONE(pChecker);
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| +
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| +        PKIX_CHECK(pkix_BasicConstraintsCheckerState_Create
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| +                    (certsRemaining, &state, plContext),
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| +                    PKIX_BASICCONSTRAINTSCHECKERSTATECREATEFAILED);
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| +
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| +        PKIX_CHECK(PKIX_CertChainChecker_Create
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| +                    (pkix_BasicConstraintsChecker_Check,
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| +                    PKIX_FALSE,
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| +                    PKIX_FALSE,
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| +                    NULL,
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| +                    (PKIX_PL_Object *)state,
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| +                    pChecker,
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| +                    plContext),
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| +                    PKIX_CERTCHAINCHECKERCHECKFAILED);
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| +
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| +cleanup:
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| +        PKIX_DECREF(state);
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| +
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| +        PKIX_RETURN(CERTCHAINCHECKER);
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| +}
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| 
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| Property changes on: nss/mozilla/security/nss/lib/libpkix/pkix/checker/pkix_basicconstraintschecker.c
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| ___________________________________________________________________
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| Added: svn:executable
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|    + *
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| Added: svn:eol-style
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|    + LF
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| 
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| 
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