mirror of
https://github.com/rn10950/RetroZilla.git
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1452 lines
54 KiB
C
1452 lines
54 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* pkix_validate.c
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*
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* Top level validateChain function
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*
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*/
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#include "pkix_validate.h"
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#include "pkix_pl_common.h"
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/* --Private-Functions-------------------------------------------- */
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/*
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* FUNCTION: pkix_AddToVerifyLog
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* DESCRIPTION:
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*
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* This function returns immediately if the address for the VerifyNode tree
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* pointed to by "pVerifyTree" is NULL. Otherwise it creates a new VerifyNode
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* from the Cert pointed to by "cert" and the Error pointed to by "error",
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* and inserts it at the depth in the VerifyNode tree determined by "depth". A
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* depth of zero means that this function creates the root node of a new tree.
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*
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* Note: this function does not include the means of choosing among branches
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* of a tree. It is intended for non-branching trees, that is, where each
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* parent node has only a single child node.
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*
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* PARAMETERS:
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* "cert"
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* The address of the Cert to be included in the new VerifyNode. Must be
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* non-NULL.
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* "depth"
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* The UInt32 value of the depth.
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* "error"
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* The address of the Error to be included in the new VerifyNode.
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* "pVerifyTree"
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* The address of the VerifyNode tree into which the created VerifyNode
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* is to be inserted. The node is not created if VerifyTree is 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 Validate Error if the function fails in a 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_AddToVerifyLog(
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PKIX_PL_Cert *cert,
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PKIX_UInt32 depth,
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PKIX_Error *error,
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PKIX_VerifyNode **pVerifyTree,
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void *plContext)
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{
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PKIX_VerifyNode *verifyNode = NULL;
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PKIX_ENTER(VALIDATE, "pkix_AddToVerifyLog");
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PKIX_NULLCHECK_ONE(cert);
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if (pVerifyTree) { /* nothing to do if no address given for log */
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PKIX_CHECK(pkix_VerifyNode_Create
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(cert, depth, error, &verifyNode, plContext),
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PKIX_VERIFYNODECREATEFAILED);
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if (depth == 0) {
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/* We just created the root node */
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*pVerifyTree = verifyNode;
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} else {
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PKIX_CHECK(pkix_VerifyNode_AddToChain
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(*pVerifyTree, verifyNode, plContext),
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PKIX_VERIFYNODEADDTOCHAINFAILED);
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}
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}
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cleanup:
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PKIX_RETURN(VALIDATE);
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}
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/*
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* FUNCTION: pkix_CheckCert
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* DESCRIPTION:
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*
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* Checks whether the Cert pointed to by "cert" successfully validates
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* using the List of CertChainCheckers pointed to by "checkers". If the
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* certificate does not validate, an Error pointer is returned.
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*
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* This function should be called initially with the UInt32 pointed to by
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* "pCheckerIndex" containing zero, and the pointer at "pNBIOContext"
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* containing NULL. If a checker does non-blocking I/O, this function will
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* return with the index of that checker stored at "pCheckerIndex" and a
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* platform-dependent non-blocking I/O context stored at "pNBIOContext".
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* A subsequent call to this function with those values intact will allow the
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* checking to resume where it left off. This should be repeated until the
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* function returns with NULL stored at "pNBIOContext".
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*
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* PARAMETERS:
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* "cert"
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* Address of Cert to validate. Must be non-NULL.
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* "checkers"
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* List of CertChainCheckers which must each validate the certificate.
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* Must be non-NULL.
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* "checkedExtOIDs"
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* List of PKIX_PL_OID that has been processed. If called from building
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* chain, it is the list of critical extension OIDs that has been
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* processed prior to validation. May be NULL.
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* "pCheckerIndex"
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* Address at which is stored the the index, within the List "checkers",
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* of a checker whose processing was interrupted by non-blocking I/O.
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* Must be non-NULL.
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* "pNBIOContext"
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* Address at which is stored platform-specific non-blocking I/O context.
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* 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 Validate Error if the function fails in a 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_CheckCert(
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PKIX_PL_Cert *cert,
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PKIX_List *checkers,
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PKIX_List *checkedExtOIDsList,
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PKIX_UInt32 *pCheckerIndex,
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void **pNBIOContext,
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void *plContext)
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{
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PKIX_CertChainChecker_CheckCallback checkerCheck = NULL;
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PKIX_CertChainChecker *checker = NULL;
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PKIX_List *unresCritExtOIDs = NULL;
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PKIX_UInt32 numCheckers;
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PKIX_UInt32 numUnresCritExtOIDs = 0;
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PKIX_UInt32 checkerIndex = 0;
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void *nbioContext = NULL;
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PKIX_ENTER(VALIDATE, "pkix_CheckCert");
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PKIX_NULLCHECK_FOUR(cert, checkers, pCheckerIndex, pNBIOContext);
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nbioContext = *pNBIOContext;
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*pNBIOContext = NULL; /* prepare for case of error exit */
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PKIX_CHECK(PKIX_PL_Cert_GetCriticalExtensionOIDs
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(cert, &unresCritExtOIDs, plContext),
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PKIX_CERTGETCRITICALEXTENSIONOIDSFAILED);
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PKIX_CHECK(PKIX_List_GetLength(checkers, &numCheckers, plContext),
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PKIX_LISTGETLENGTHFAILED);
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for (checkerIndex = *pCheckerIndex;
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checkerIndex < numCheckers;
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checkerIndex++) {
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PKIX_CHECK(PKIX_List_GetItem
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(checkers,
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checkerIndex,
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(PKIX_PL_Object **)&checker,
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plContext),
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PKIX_LISTGETITEMFAILED);
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PKIX_CHECK(PKIX_CertChainChecker_GetCheckCallback
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(checker, &checkerCheck, plContext),
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PKIX_CERTCHAINCHECKERGETCHECKCALLBACKFAILED);
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PKIX_CHECK(checkerCheck(checker, cert, unresCritExtOIDs,
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&nbioContext, plContext),
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PKIX_CERTCHAINCHECKERCHECKFAILED);
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if (nbioContext != NULL) {
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*pCheckerIndex = checkerIndex;
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*pNBIOContext = nbioContext;
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goto cleanup;
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}
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PKIX_DECREF(checker);
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}
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if (unresCritExtOIDs){
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#ifdef PKIX_VALIDATEDEBUG
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{
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PKIX_PL_String *oidString = NULL;
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PKIX_UInt32 length;
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char *oidAscii = NULL;
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PKIX_TOSTRING(unresCritExtOIDs, &oidString, plContext,
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PKIX_LISTTOSTRINGFAILED);
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PKIX_CHECK(PKIX_PL_String_GetEncoded
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(oidString,
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PKIX_ESCASCII,
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(void **) &oidAscii,
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&length,
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plContext),
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PKIX_STRINGGETENCODEDFAILED);
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PKIX_VALIDATE_DEBUG_ARG
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("unrecognized critical extension OIDs:"
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" %s\n", oidAscii);
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PKIX_DECREF(oidString);
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PKIX_PL_Free(oidAscii, plContext);
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}
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#endif
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if (checkedExtOIDsList != NULL) {
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/* Take out OID's that had been processed, if any */
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PKIX_CHECK(pkix_List_RemoveItems
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(unresCritExtOIDs,
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checkedExtOIDsList,
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plContext),
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PKIX_LISTREMOVEITEMSFAILED);
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}
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PKIX_CHECK(PKIX_List_GetLength
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(unresCritExtOIDs, &numUnresCritExtOIDs, plContext),
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PKIX_LISTGETLENGTHFAILED);
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if (numUnresCritExtOIDs != 0){
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PKIX_ERROR(PKIX_UNRECOGNIZEDCRITICALEXTENSION);
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}
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}
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cleanup:
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PKIX_DECREF(checker);
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PKIX_DECREF(unresCritExtOIDs);
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PKIX_RETURN(VALIDATE);
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}
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/*
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* FUNCTION: pkix_InitializeCheckers
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* DESCRIPTION:
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*
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* Creates several checkers and initializes them with values derived from the
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* TrustAnchor pointed to by "anchor", the ProcessingParams pointed to by
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* "procParams", and the number of Certs in the Chain, represented by
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* "numCerts". The List of checkers is stored at "pCheckers".
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*
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* PARAMETERS:
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* "anchor"
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* Address of TrustAnchor used to initialize the SignatureChecker and
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* NameChainingChecker. Must be non-NULL.
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* "procParams"
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* Address of ProcessingParams used to initialize the ExpirationChecker
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* and TargetCertChecker. Must be non-NULL.
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* "numCerts"
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* Number of certificates in the CertChain.
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* "pCheckers"
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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 Validate Error if the function fails in a 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_InitializeCheckers(
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PKIX_TrustAnchor *anchor,
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PKIX_ProcessingParams *procParams,
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PKIX_UInt32 numCerts,
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PKIX_List **pCheckers,
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void *plContext)
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{
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PKIX_CertChainChecker *targetCertChecker = NULL;
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PKIX_CertChainChecker *expirationChecker = NULL;
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PKIX_CertChainChecker *nameChainingChecker = NULL;
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PKIX_CertChainChecker *nameConstraintsChecker = NULL;
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PKIX_CertChainChecker *basicConstraintsChecker = NULL;
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PKIX_CertChainChecker *policyChecker = NULL;
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PKIX_CertChainChecker *sigChecker = NULL;
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PKIX_CertChainChecker *defaultCrlChecker = NULL;
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PKIX_CertChainChecker *userChecker = NULL;
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PKIX_PL_X500Name *trustedCAName = NULL;
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PKIX_PL_PublicKey *trustedPubKey = NULL;
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PKIX_List *checkers = NULL;
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PKIX_PL_Date *testDate = NULL;
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PKIX_CertSelector *certSelector = NULL;
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PKIX_PL_Cert *trustedCert = NULL;
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PKIX_PL_CertNameConstraints *trustedNC = NULL;
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PKIX_List *initialPolicies = NULL;
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PKIX_Boolean policyQualifiersRejected = PKIX_FALSE;
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PKIX_Boolean initialPolicyMappingInhibit = PKIX_FALSE;
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PKIX_Boolean initialAnyPolicyInhibit = PKIX_FALSE;
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PKIX_Boolean initialExplicitPolicy = PKIX_FALSE;
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PKIX_List *userCheckersList = NULL;
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PKIX_List *certStores = NULL;
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PKIX_UInt32 numCertCheckers = 0;
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PKIX_UInt32 i;
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PKIX_ENTER(VALIDATE, "pkix_InitializeCheckers");
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PKIX_NULLCHECK_THREE(anchor, procParams, pCheckers);
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PKIX_CHECK(PKIX_List_Create(&checkers, plContext),
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PKIX_LISTCREATEFAILED);
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/*
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* The TrustAnchor may have been created using CreateWithCert
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* (in which case GetCAPublicKey and GetCAName will return NULL)
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* or may have been created using CreateWithNameKeyPair (in which
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* case GetTrustedCert will return NULL. So we call GetTrustedCert
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* and populate trustedPubKey and trustedCAName accordingly.
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*/
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PKIX_CHECK(PKIX_TrustAnchor_GetTrustedCert
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(anchor, &trustedCert, plContext),
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PKIX_TRUSTANCHORGETTRUSTEDCERTFAILED);
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if (trustedCert){
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PKIX_CHECK(PKIX_PL_Cert_GetSubjectPublicKey
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(trustedCert, &trustedPubKey, plContext),
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PKIX_CERTGETSUBJECTPUBLICKEYFAILED);
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PKIX_CHECK(PKIX_PL_Cert_GetSubject
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(trustedCert, &trustedCAName, plContext),
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PKIX_CERTGETSUBJECTFAILED);
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} else {
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PKIX_CHECK(PKIX_TrustAnchor_GetCAPublicKey
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(anchor, &trustedPubKey, plContext),
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PKIX_TRUSTANCHORGETCAPUBLICKEYFAILED);
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PKIX_CHECK(PKIX_TrustAnchor_GetCAName
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(anchor, &trustedCAName, plContext),
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PKIX_TRUSTANCHORGETCANAMEFAILED);
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}
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PKIX_NULLCHECK_TWO(trustedPubKey, trustedCAName);
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PKIX_CHECK(PKIX_TrustAnchor_GetNameConstraints
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(anchor, &trustedNC, plContext),
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PKIX_TRUSTANCHORGETNAMECONSTRAINTSFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_GetTargetCertConstraints
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(procParams, &certSelector, plContext),
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PKIX_PROCESSINGPARAMSGETTARGETCERTCONSTRAINTSFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_GetDate
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(procParams, &testDate, plContext),
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PKIX_PROCESSINGPARAMSGETDATEFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_GetInitialPolicies
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(procParams, &initialPolicies, plContext),
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PKIX_PROCESSINGPARAMSGETINITIALPOLICIESFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_GetPolicyQualifiersRejected
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(procParams, &policyQualifiersRejected, plContext),
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PKIX_PROCESSINGPARAMSGETPOLICYQUALIFIERSREJECTEDFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_IsPolicyMappingInhibited
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(procParams, &initialPolicyMappingInhibit, plContext),
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PKIX_PROCESSINGPARAMSISPOLICYMAPPINGINHIBITEDFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_IsAnyPolicyInhibited
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(procParams, &initialAnyPolicyInhibit, plContext),
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PKIX_PROCESSINGPARAMSISANYPOLICYINHIBITEDFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_IsExplicitPolicyRequired
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(procParams, &initialExplicitPolicy, plContext),
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PKIX_PROCESSINGPARAMSISEXPLICITPOLICYREQUIREDFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_GetCertStores
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(procParams, &certStores, plContext),
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PKIX_PROCESSINGPARAMSGETCERTSTORESFAILED);
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PKIX_CHECK(PKIX_ProcessingParams_GetCertChainCheckers
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(procParams, &userCheckersList, plContext),
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PKIX_PROCESSINGPARAMSGETCERTCHAINCHECKERSFAILED);
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/* now, initialize all the checkers */
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PKIX_CHECK(pkix_TargetCertChecker_Initialize
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(certSelector, numCerts, &targetCertChecker, plContext),
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PKIX_TARGETCERTCHECKERINITIALIZEFAILED);
|
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PKIX_CHECK(pkix_ExpirationChecker_Initialize
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(testDate, &expirationChecker, plContext),
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PKIX_EXPIRATIONCHECKERINITIALIZEFAILED);
|
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PKIX_CHECK(pkix_NameChainingChecker_Initialize
|
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(trustedCAName, &nameChainingChecker, plContext),
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PKIX_NAMECHAININGCHECKERINITIALIZEFAILED);
|
|
|
|
PKIX_CHECK(pkix_NameConstraintsChecker_Initialize
|
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(trustedNC, numCerts, &nameConstraintsChecker, plContext),
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PKIX_NAMECONSTRAINTSCHECKERINITIALIZEFAILED);
|
|
|
|
PKIX_CHECK(pkix_BasicConstraintsChecker_Initialize
|
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(numCerts, &basicConstraintsChecker, plContext),
|
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PKIX_BASICCONSTRAINTSCHECKERINITIALIZEFAILED);
|
|
|
|
PKIX_CHECK(pkix_PolicyChecker_Initialize
|
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(initialPolicies,
|
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policyQualifiersRejected,
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initialPolicyMappingInhibit,
|
|
initialExplicitPolicy,
|
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initialAnyPolicyInhibit,
|
|
numCerts,
|
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&policyChecker,
|
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plContext),
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PKIX_POLICYCHECKERINITIALIZEFAILED);
|
|
|
|
PKIX_CHECK(pkix_SignatureChecker_Initialize
|
|
(trustedPubKey, numCerts, &sigChecker, plContext),
|
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PKIX_SIGNATURECHECKERINITIALIZEFAILED);
|
|
|
|
if (userCheckersList != NULL) {
|
|
|
|
PKIX_CHECK(PKIX_List_GetLength
|
|
(userCheckersList, &numCertCheckers, plContext),
|
|
PKIX_LISTGETLENGTHFAILED);
|
|
|
|
for (i = 0; i < numCertCheckers; i++) {
|
|
|
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PKIX_CHECK(PKIX_List_GetItem
|
|
(userCheckersList,
|
|
i,
|
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(PKIX_PL_Object **) &userChecker,
|
|
plContext),
|
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PKIX_LISTGETITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_AppendItem
|
|
(checkers,
|
|
(PKIX_PL_Object *)userChecker,
|
|
plContext),
|
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PKIX_LISTAPPENDITEMFAILED);
|
|
|
|
PKIX_DECREF(userChecker);
|
|
}
|
|
}
|
|
|
|
PKIX_CHECK(PKIX_List_AppendItem
|
|
(checkers, (PKIX_PL_Object *)targetCertChecker, plContext),
|
|
PKIX_LISTAPPENDITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_AppendItem
|
|
(checkers, (PKIX_PL_Object *)expirationChecker, plContext),
|
|
PKIX_LISTAPPENDITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_AppendItem
|
|
(checkers, (PKIX_PL_Object *)nameChainingChecker, plContext),
|
|
PKIX_LISTAPPENDITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_AppendItem
|
|
(checkers, (PKIX_PL_Object *)nameConstraintsChecker, plContext),
|
|
PKIX_LISTAPPENDITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_AppendItem
|
|
(checkers, (PKIX_PL_Object *)basicConstraintsChecker, plContext),
|
|
PKIX_LISTAPPENDITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_AppendItem
|
|
(checkers, (PKIX_PL_Object *)policyChecker, plContext),
|
|
PKIX_LISTAPPENDITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_AppendItem
|
|
(checkers, (PKIX_PL_Object *)sigChecker, plContext),
|
|
PKIX_LISTAPPENDITEMFAILED);
|
|
|
|
*pCheckers = checkers;
|
|
|
|
cleanup:
|
|
|
|
if (PKIX_ERROR_RECEIVED){
|
|
PKIX_DECREF(checkers);
|
|
}
|
|
|
|
PKIX_DECREF(certSelector);
|
|
PKIX_DECREF(testDate);
|
|
PKIX_DECREF(initialPolicies);
|
|
PKIX_DECREF(targetCertChecker);
|
|
PKIX_DECREF(expirationChecker);
|
|
PKIX_DECREF(nameChainingChecker);
|
|
PKIX_DECREF(nameConstraintsChecker);
|
|
PKIX_DECREF(basicConstraintsChecker);
|
|
PKIX_DECREF(policyChecker);
|
|
PKIX_DECREF(sigChecker);
|
|
PKIX_DECREF(trustedCAName);
|
|
PKIX_DECREF(trustedPubKey);
|
|
PKIX_DECREF(trustedNC);
|
|
PKIX_DECREF(trustedCert);
|
|
PKIX_DECREF(defaultCrlChecker);
|
|
PKIX_DECREF(userCheckersList);
|
|
PKIX_DECREF(certStores);
|
|
PKIX_DECREF(userChecker);
|
|
|
|
PKIX_RETURN(VALIDATE);
|
|
}
|
|
|
|
/*
|
|
* FUNCTION: pkix_RetrieveOutputs
|
|
* DESCRIPTION:
|
|
*
|
|
* This function queries the respective states of the List of checkers in
|
|
* "checkers" to to obtain the final public key from the SignatureChecker
|
|
* and the policy tree from the PolicyChecker, storing those values at
|
|
* "pFinalSubjPubKey" and "pPolicyTree", respectively.
|
|
*
|
|
* PARAMETERS:
|
|
* "checkers"
|
|
* Address of List of checkers to be queried. Must be non-NULL.
|
|
* "pFinalSubjPubKey"
|
|
* Address where final public key will be stored. Must be non-NULL.
|
|
* "pPolicyTree"
|
|
* Address where policy tree will be stored. Must be 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.
|
|
*/
|
|
static PKIX_Error *
|
|
pkix_RetrieveOutputs(
|
|
PKIX_List *checkers,
|
|
PKIX_PL_PublicKey **pFinalSubjPubKey,
|
|
PKIX_PolicyNode **pPolicyTree,
|
|
void *plContext)
|
|
{
|
|
PKIX_PL_PublicKey *finalSubjPubKey = NULL;
|
|
PKIX_PolicyNode *validPolicyTree = NULL;
|
|
PKIX_CertChainChecker *checker = NULL;
|
|
PKIX_PL_Object *state = NULL;
|
|
PKIX_UInt32 numCheckers = 0;
|
|
PKIX_UInt32 type;
|
|
PKIX_Int32 j;
|
|
|
|
PKIX_ENTER(VALIDATE, "pkix_RetrieveOutputs");
|
|
|
|
PKIX_NULLCHECK_TWO(checkers, pPolicyTree);
|
|
|
|
/*
|
|
* To optimize the search, we guess that the sigChecker is
|
|
* last in the tree and is preceded by the policyChecker. We
|
|
* search toward the front of the chain. Remember that List
|
|
* items are indexed 0..(numItems - 1).
|
|
*/
|
|
|
|
PKIX_CHECK(PKIX_List_GetLength(checkers, &numCheckers, plContext),
|
|
PKIX_LISTGETLENGTHFAILED);
|
|
|
|
for (j = numCheckers - 1; j >= 0; j--){
|
|
PKIX_CHECK(PKIX_List_GetItem
|
|
(checkers, j, (PKIX_PL_Object **)&checker, plContext),
|
|
PKIX_LISTGETITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_CertChainChecker_GetCertChainCheckerState
|
|
(checker, &state, plContext),
|
|
PKIX_CERTCHAINCHECKERGETCERTCHAINCHECKERSTATEFAILED);
|
|
|
|
/* user defined checker may have no state */
|
|
if (state != NULL) {
|
|
|
|
PKIX_CHECK(PKIX_PL_Object_GetType(state, &type, plContext),
|
|
PKIX_OBJECTGETTYPEFAILED);
|
|
|
|
if (type == PKIX_SIGNATURECHECKERSTATE_TYPE){
|
|
/* final pubKey will include any inherited DSA params */
|
|
finalSubjPubKey =
|
|
((pkix_SignatureCheckerState *)state)->
|
|
prevPublicKey;
|
|
PKIX_INCREF(finalSubjPubKey);
|
|
*pFinalSubjPubKey = finalSubjPubKey;
|
|
}
|
|
|
|
if (type == PKIX_CERTPOLICYCHECKERSTATE_TYPE) {
|
|
validPolicyTree =
|
|
((PKIX_PolicyCheckerState *)state)->validPolicyTree;
|
|
break;
|
|
}
|
|
}
|
|
|
|
PKIX_DECREF(checker);
|
|
PKIX_DECREF(state);
|
|
}
|
|
|
|
PKIX_INCREF(validPolicyTree);
|
|
*pPolicyTree = validPolicyTree;
|
|
|
|
cleanup:
|
|
|
|
PKIX_DECREF(checker);
|
|
PKIX_DECREF(state);
|
|
|
|
PKIX_RETURN(VALIDATE);
|
|
|
|
}
|
|
|
|
/*
|
|
* FUNCTION: pkix_CheckChain
|
|
* DESCRIPTION:
|
|
*
|
|
* Checks whether the List of Certs pointed to by "certs", containing
|
|
* "numCerts" entries, successfully validates using each CertChainChecker in
|
|
* the List pointed to by "checkers" and has not been revoked, according to any
|
|
* of the Revocation Checkers in the List pointed to by "revChecker". Checkers
|
|
* are expected to remove from "removeCheckedExtOIDs" and extensions that they
|
|
* process. Indices to the certChain and the checkerChain are obtained and
|
|
* returned in "pCertCheckedIndex" and "pCheckerIndex", respectively. These
|
|
* should be set to zero prior to the initial call, but may be changed (and
|
|
* must be supplied on subsequent calls) if processing is suspended for non-
|
|
* blocking I/O. Each time a Cert passes from being validated by one of the
|
|
* CertChainCheckers to being checked by a Revocation Checker, the Boolean
|
|
* stored at "pRevChecking" is changed from FALSE to TRUE. If the Cert is
|
|
* rejected by a Revocation Checker, its reason code is returned at
|
|
* "pReasonCode. If the List of Certs successfully validates, the public key i
|
|
* the final certificate is obtained and stored at "pFinalSubjPubKey" and the
|
|
* validPolicyTree, which could be NULL, is stored at pPolicyTree. If the List
|
|
* of Certs fails to validate, an Error pointer is returned.
|
|
*
|
|
* 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.
|
|
*
|
|
* The number of Certs in the List, represented by "numCerts", is used to
|
|
* determine which Cert is the final Cert.
|
|
*
|
|
* PARAMETERS:
|
|
* "certs"
|
|
* Address of List of Certs to validate. Must be non-NULL.
|
|
* "numCerts"
|
|
* Number of certificates in the List of certificates.
|
|
* "checkers"
|
|
* List of CertChainCheckers which must each validate the List of
|
|
* certificates. Must be non-NULL.
|
|
* "revChecker"
|
|
* List of RevocationCheckers which must each not reject the List of
|
|
* certificates. May be empty, but must be non-NULL.
|
|
* "removeCheckedExtOIDs"
|
|
* List of PKIX_PL_OID that has been processed. If called from building
|
|
* chain, it is the list of critical extension OIDs that has been
|
|
* processed prior to validation. Extension OIDs that may be processed by
|
|
* user defined checker processes are also in the list. May be NULL.
|
|
* "procParams"
|
|
* Address of ProcessingParams used to initialize various checkers. Must
|
|
* be non-NULL.
|
|
* "pCertCheckedIndex"
|
|
* Address where Int32 index to the Cert chain is obtained and
|
|
* returned. Must be non-NULL.
|
|
* "pCheckerIndex"
|
|
* Address where Int32 index to the CheckerChain is obtained and
|
|
* returned. Must be non-NULL.
|
|
* "pRevChecking"
|
|
* Address where Boolean is obtained and returned, indicating, if FALSE,
|
|
* that CertChainCheckers are being called; or, if TRUE, that RevChecker
|
|
* are being called. Must be non-NULL.
|
|
* "pReasonCode"
|
|
* Address where UInt32 results of revocation checking are stored. Must be
|
|
* non-NULL.
|
|
* "pNBIOContext"
|
|
* Address where platform-dependent context is stored if checking is
|
|
* suspended for non-blocking I/O. Must be non-NULL.
|
|
* "pFinalSubjPubKey"
|
|
* Address where the final public key will be stored. Must be non-NULL.
|
|
* "pPolicyTree"
|
|
* Address where the final validPolicyTree is 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_CheckChain(
|
|
PKIX_List *certs,
|
|
PKIX_UInt32 numCerts,
|
|
PKIX_TrustAnchor *anchor,
|
|
PKIX_List *checkers,
|
|
PKIX_RevocationChecker *revChecker,
|
|
PKIX_List *removeCheckedExtOIDs,
|
|
PKIX_ProcessingParams *procParams,
|
|
PKIX_UInt32 *pCertCheckedIndex,
|
|
PKIX_UInt32 *pCheckerIndex,
|
|
PKIX_Boolean *pRevChecking,
|
|
PKIX_UInt32 *pReasonCode,
|
|
void **pNBIOContext,
|
|
PKIX_PL_PublicKey **pFinalSubjPubKey,
|
|
PKIX_PolicyNode **pPolicyTree,
|
|
PKIX_VerifyNode **pVerifyTree,
|
|
void *plContext)
|
|
{
|
|
PKIX_UInt32 j = 0;
|
|
PKIX_Boolean revChecking = PKIX_FALSE;
|
|
PKIX_Error *checkCertError = NULL;
|
|
void *nbioContext = NULL;
|
|
PKIX_PL_Cert *cert = NULL;
|
|
PKIX_PL_Cert *issuer = NULL;
|
|
PKIX_PL_NssContext *nssContext = NULL;
|
|
CERTCertList *certList = NULL;
|
|
const CERTChainVerifyCallback *chainVerifyCallback = NULL;
|
|
CERTCertificate *nssCert = NULL;
|
|
|
|
PKIX_ENTER(VALIDATE, "pkix_CheckChain");
|
|
PKIX_NULLCHECK_FOUR(certs, checkers, revChecker, pCertCheckedIndex);
|
|
PKIX_NULLCHECK_FOUR(pCheckerIndex, pRevChecking, pReasonCode, anchor);
|
|
PKIX_NULLCHECK_THREE(pNBIOContext, pFinalSubjPubKey, pPolicyTree);
|
|
|
|
nbioContext = *pNBIOContext;
|
|
*pNBIOContext = NULL;
|
|
revChecking = *pRevChecking;
|
|
nssContext = (PKIX_PL_NssContext *)plContext;
|
|
chainVerifyCallback = &nssContext->chainVerifyCallback;
|
|
|
|
if (chainVerifyCallback->isChainValid != NULL) {
|
|
PRBool chainOK = PR_FALSE; /*assume failure*/
|
|
SECStatus rv;
|
|
|
|
certList = CERT_NewCertList();
|
|
if (certList == NULL) {
|
|
PKIX_ERROR_ALLOC_ERROR();
|
|
}
|
|
|
|
/* Add the trust anchor to the list */
|
|
PKIX_CHECK(PKIX_TrustAnchor_GetTrustedCert
|
|
(anchor, &cert, plContext),
|
|
PKIX_TRUSTANCHORGETTRUSTEDCERTFAILED);
|
|
|
|
PKIX_CHECK(
|
|
PKIX_PL_Cert_GetCERTCertificate(cert, &nssCert, plContext),
|
|
PKIX_CERTGETCERTCERTIFICATEFAILED);
|
|
|
|
rv = CERT_AddCertToListHead(certList, nssCert);
|
|
if (rv != SECSuccess) {
|
|
PKIX_ERROR_ALLOC_ERROR();
|
|
}
|
|
/* the certList takes ownership of nssCert on success */
|
|
nssCert = NULL;
|
|
PKIX_DECREF(cert);
|
|
|
|
/* Add the rest of the chain to the list */
|
|
for (j = *pCertCheckedIndex; j < numCerts; j++) {
|
|
PKIX_CHECK(PKIX_List_GetItem(
|
|
certs, j, (PKIX_PL_Object **)&cert, plContext),
|
|
PKIX_LISTGETITEMFAILED);
|
|
|
|
PKIX_CHECK(
|
|
PKIX_PL_Cert_GetCERTCertificate(cert, &nssCert, plContext),
|
|
PKIX_CERTGETCERTCERTIFICATEFAILED);
|
|
|
|
rv = CERT_AddCertToListHead(certList, nssCert);
|
|
if (rv != SECSuccess) {
|
|
PKIX_ERROR_ALLOC_ERROR();
|
|
}
|
|
/* the certList takes ownership of nssCert on success */
|
|
nssCert = NULL;
|
|
PKIX_DECREF(cert);
|
|
}
|
|
|
|
rv = (*chainVerifyCallback->isChainValid)
|
|
(chainVerifyCallback->isChainValidArg, certList, &chainOK);
|
|
if (rv != SECSuccess) {
|
|
PKIX_ERROR_FATAL(PKIX_CHAINVERIFYCALLBACKFAILED);
|
|
}
|
|
|
|
if (!chainOK) {
|
|
PKIX_ERROR(PKIX_CHAINVERIFYCALLBACKFAILED);
|
|
}
|
|
|
|
}
|
|
|
|
PKIX_CHECK(PKIX_TrustAnchor_GetTrustedCert
|
|
(anchor, &cert, plContext),
|
|
PKIX_TRUSTANCHORGETTRUSTEDCERTFAILED);
|
|
|
|
for (j = *pCertCheckedIndex; j < numCerts; j++) {
|
|
|
|
PORT_Assert(cert);
|
|
PKIX_DECREF(issuer);
|
|
issuer = cert;
|
|
cert = NULL;
|
|
|
|
PKIX_CHECK(PKIX_List_GetItem(
|
|
certs, j, (PKIX_PL_Object **)&cert, plContext),
|
|
PKIX_LISTGETITEMFAILED);
|
|
|
|
/* check if cert pointer is valid */
|
|
PORT_Assert(cert);
|
|
if (cert == NULL) {
|
|
continue;
|
|
}
|
|
|
|
if (revChecking == PKIX_FALSE) {
|
|
|
|
PKIX_CHECK(pkix_CheckCert
|
|
(cert,
|
|
checkers,
|
|
removeCheckedExtOIDs,
|
|
pCheckerIndex,
|
|
&nbioContext,
|
|
plContext),
|
|
PKIX_CHECKCERTFAILED);
|
|
|
|
if (nbioContext != NULL) {
|
|
*pCertCheckedIndex = j;
|
|
*pRevChecking = revChecking;
|
|
*pNBIOContext = nbioContext;
|
|
goto cleanup;
|
|
}
|
|
|
|
revChecking = PKIX_TRUE;
|
|
*pCheckerIndex = 0;
|
|
}
|
|
|
|
if (revChecking == PKIX_TRUE) {
|
|
PKIX_RevocationStatus revStatus;
|
|
pkixErrorResult =
|
|
PKIX_RevocationChecker_Check(
|
|
cert, issuer, revChecker,
|
|
procParams, PKIX_TRUE,
|
|
(j == numCerts - 1) ? PKIX_TRUE : PKIX_FALSE,
|
|
&revStatus, pReasonCode,
|
|
&nbioContext, plContext);
|
|
if (nbioContext != NULL) {
|
|
*pCertCheckedIndex = j;
|
|
*pRevChecking = revChecking;
|
|
*pNBIOContext = nbioContext;
|
|
goto cleanup;
|
|
}
|
|
if (revStatus == PKIX_RevStatus_Revoked ||
|
|
pkixErrorResult) {
|
|
if (!pkixErrorResult) {
|
|
/* if pkixErrorResult is returned then
|
|
* use it as it has a detailed revocation
|
|
* error code. Otherwise create a new error */
|
|
PKIX_ERROR_CREATE(VALIDATE,
|
|
PKIX_CERTIFICATEREVOKED,
|
|
pkixErrorResult);
|
|
}
|
|
goto cleanup;
|
|
}
|
|
revChecking = PKIX_FALSE;
|
|
*pCheckerIndex = 0;
|
|
}
|
|
|
|
PKIX_CHECK(pkix_AddToVerifyLog
|
|
(cert, j, NULL, pVerifyTree, plContext),
|
|
PKIX_ADDTOVERIFYLOGFAILED);
|
|
}
|
|
|
|
PKIX_CHECK(pkix_RetrieveOutputs
|
|
(checkers, pFinalSubjPubKey, pPolicyTree, plContext),
|
|
PKIX_RETRIEVEOUTPUTSFAILED);
|
|
|
|
*pNBIOContext = NULL;
|
|
|
|
cleanup:
|
|
if (PKIX_ERROR_RECEIVED && cert) {
|
|
checkCertError = pkixErrorResult;
|
|
|
|
PKIX_CHECK_FATAL(
|
|
pkix_AddToVerifyLog(cert, j, checkCertError, pVerifyTree,
|
|
plContext),
|
|
PKIX_ADDTOVERIFYLOGFAILED);
|
|
pkixErrorResult = checkCertError;
|
|
pkixErrorCode = pkixErrorResult->errCode;
|
|
checkCertError = NULL;
|
|
}
|
|
|
|
fatal:
|
|
if (nssCert) {
|
|
CERT_DestroyCertificate(nssCert);
|
|
}
|
|
|
|
if (certList) {
|
|
CERT_DestroyCertList(certList);
|
|
}
|
|
|
|
PKIX_DECREF(checkCertError);
|
|
PKIX_DECREF(cert);
|
|
PKIX_DECREF(issuer);
|
|
|
|
PKIX_RETURN(VALIDATE);
|
|
}
|
|
|
|
/*
|
|
* FUNCTION: pkix_ExtractParameters
|
|
* DESCRIPTION:
|
|
*
|
|
* Extracts several parameters from the ValidateParams object pointed to by
|
|
* "valParams" and stores the CertChain at "pChain", the List of Certs at
|
|
* "pCerts", the number of Certs in the chain at "pNumCerts", the
|
|
* ProcessingParams object at "pProcParams", the List of TrustAnchors at
|
|
* "pAnchors", and the number of TrustAnchors at "pNumAnchors".
|
|
*
|
|
* PARAMETERS:
|
|
* "valParams"
|
|
* Address of ValidateParams from which the parameters are extracted.
|
|
* Must be non-NULL.
|
|
* "pCerts"
|
|
* Address where object pointer for List of Certs will be stored.
|
|
* Must be non-NULL.
|
|
* "pNumCerts"
|
|
* Address where number of Certs will be stored. Must be non-NULL.
|
|
* "pProcParams"
|
|
* Address where object pointer for ProcessingParams will be stored.
|
|
* Must be non-NULL.
|
|
* "pAnchors"
|
|
* Address where object pointer for List of Anchors will be stored.
|
|
* Must be non-NULL.
|
|
* "pNumAnchors"
|
|
* Address where number of Anchors will be stored. Must be 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.
|
|
*/
|
|
static PKIX_Error *
|
|
pkix_ExtractParameters(
|
|
PKIX_ValidateParams *valParams,
|
|
PKIX_List **pCerts,
|
|
PKIX_UInt32 *pNumCerts,
|
|
PKIX_ProcessingParams **pProcParams,
|
|
PKIX_List **pAnchors,
|
|
PKIX_UInt32 *pNumAnchors,
|
|
void *plContext)
|
|
{
|
|
PKIX_ENTER(VALIDATE, "pkix_ExtractParameters");
|
|
PKIX_NULLCHECK_THREE(valParams, pCerts, pNumCerts);
|
|
PKIX_NULLCHECK_THREE(pProcParams, pAnchors, pNumAnchors);
|
|
|
|
/* extract relevant parameters from chain */
|
|
PKIX_CHECK(PKIX_ValidateParams_GetCertChain
|
|
(valParams, pCerts, plContext),
|
|
PKIX_VALIDATEPARAMSGETCERTCHAINFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_GetLength(*pCerts, pNumCerts, plContext),
|
|
PKIX_LISTGETLENGTHFAILED);
|
|
|
|
/* extract relevant parameters from procParams */
|
|
PKIX_CHECK(PKIX_ValidateParams_GetProcessingParams
|
|
(valParams, pProcParams, plContext),
|
|
PKIX_VALIDATEPARAMSGETPROCESSINGPARAMSFAILED);
|
|
|
|
PKIX_CHECK(PKIX_ProcessingParams_GetTrustAnchors
|
|
(*pProcParams, pAnchors, plContext),
|
|
PKIX_PROCESSINGPARAMSGETTRUSTANCHORSFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_GetLength(*pAnchors, pNumAnchors, plContext),
|
|
PKIX_LISTGETLENGTHFAILED);
|
|
|
|
cleanup:
|
|
|
|
PKIX_RETURN(VALIDATE);
|
|
}
|
|
|
|
/* --Public-Functions--------------------------------------------- */
|
|
|
|
/*
|
|
* FUNCTION: PKIX_ValidateChain (see comments in pkix.h)
|
|
*/
|
|
PKIX_Error *
|
|
PKIX_ValidateChain(
|
|
PKIX_ValidateParams *valParams,
|
|
PKIX_ValidateResult **pResult,
|
|
PKIX_VerifyNode **pVerifyTree,
|
|
void *plContext)
|
|
{
|
|
PKIX_Error *chainFailed = NULL;
|
|
|
|
PKIX_ProcessingParams *procParams = NULL;
|
|
PKIX_CertChainChecker *userChecker = NULL;
|
|
PKIX_RevocationChecker *revChecker = NULL;
|
|
PKIX_List *certs = NULL;
|
|
PKIX_List *checkers = NULL;
|
|
PKIX_List *anchors = NULL;
|
|
PKIX_List *userCheckers = NULL;
|
|
PKIX_List *userCheckerExtOIDs = NULL;
|
|
PKIX_List *validateCheckedCritExtOIDsList = NULL;
|
|
PKIX_TrustAnchor *anchor = NULL;
|
|
PKIX_ValidateResult *valResult = NULL;
|
|
PKIX_PL_PublicKey *finalPubKey = NULL;
|
|
PKIX_PolicyNode *validPolicyTree = NULL;
|
|
PKIX_Boolean supportForwarding = PKIX_FALSE;
|
|
PKIX_Boolean revChecking = PKIX_FALSE;
|
|
PKIX_UInt32 i, numCerts, numAnchors;
|
|
PKIX_UInt32 numUserCheckers = 0;
|
|
PKIX_UInt32 certCheckedIndex = 0;
|
|
PKIX_UInt32 checkerIndex = 0;
|
|
PKIX_UInt32 reasonCode = 0;
|
|
void *nbioContext = NULL;
|
|
|
|
PKIX_ENTER(VALIDATE, "PKIX_ValidateChain");
|
|
PKIX_NULLCHECK_TWO(valParams, pResult);
|
|
|
|
/* extract various parameters from valParams */
|
|
PKIX_CHECK(pkix_ExtractParameters
|
|
(valParams,
|
|
&certs,
|
|
&numCerts,
|
|
&procParams,
|
|
&anchors,
|
|
&numAnchors,
|
|
plContext),
|
|
PKIX_EXTRACTPARAMETERSFAILED);
|
|
|
|
/*
|
|
* setup an extension OID list that user had defined for his checker
|
|
* processing. User checker is not responsible for taking out OIDs
|
|
* from unresolved critical extension list as the libpkix checker
|
|
* is doing. Here we add those user checkers' OIDs to the removal
|
|
* list to be taken out by CheckChain
|
|
*/
|
|
PKIX_CHECK(PKIX_ProcessingParams_GetCertChainCheckers
|
|
(procParams, &userCheckers, plContext),
|
|
PKIX_PROCESSINGPARAMSGETCERTCHAINCHECKERSFAILED);
|
|
|
|
if (userCheckers != NULL) {
|
|
|
|
PKIX_CHECK(PKIX_List_Create
|
|
(&validateCheckedCritExtOIDsList,
|
|
plContext),
|
|
PKIX_LISTCREATEFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_GetLength
|
|
(userCheckers, &numUserCheckers, plContext),
|
|
PKIX_LISTGETLENGTHFAILED);
|
|
|
|
for (i = 0; i < numUserCheckers; i++) {
|
|
|
|
PKIX_CHECK(PKIX_List_GetItem
|
|
(userCheckers,
|
|
i,
|
|
(PKIX_PL_Object **) &userChecker,
|
|
plContext),
|
|
PKIX_LISTGETITEMFAILED);
|
|
|
|
PKIX_CHECK
|
|
(PKIX_CertChainChecker_IsForwardCheckingSupported
|
|
(userChecker, &supportForwarding, plContext),
|
|
PKIX_CERTCHAINCHECKERISFORWARDCHECKINGSUPPORTEDFAILED);
|
|
|
|
if (supportForwarding == PKIX_FALSE) {
|
|
|
|
PKIX_CHECK
|
|
(PKIX_CertChainChecker_GetSupportedExtensions
|
|
(userChecker, &userCheckerExtOIDs, plContext),
|
|
PKIX_CERTCHAINCHECKERGETSUPPORTEDEXTENSIONSFAILED);
|
|
|
|
if (userCheckerExtOIDs != NULL) {
|
|
PKIX_CHECK(pkix_List_AppendList
|
|
(validateCheckedCritExtOIDsList,
|
|
userCheckerExtOIDs,
|
|
plContext),
|
|
PKIX_LISTAPPENDLISTFAILED);
|
|
}
|
|
}
|
|
|
|
PKIX_DECREF(userCheckerExtOIDs);
|
|
PKIX_DECREF(userChecker);
|
|
}
|
|
}
|
|
|
|
PKIX_CHECK(PKIX_ProcessingParams_GetRevocationChecker
|
|
(procParams, &revChecker, plContext),
|
|
PKIX_PROCESSINGPARAMSGETREVOCATIONCHECKERFAILED);
|
|
|
|
/* try to validate the chain with each anchor */
|
|
for (i = 0; i < numAnchors; i++){
|
|
|
|
/* get trust anchor */
|
|
PKIX_CHECK(PKIX_List_GetItem
|
|
(anchors, i, (PKIX_PL_Object **)&anchor, plContext),
|
|
PKIX_LISTGETITEMFAILED);
|
|
|
|
/* initialize checkers using information from trust anchor */
|
|
PKIX_CHECK(pkix_InitializeCheckers
|
|
(anchor, procParams, numCerts, &checkers, plContext),
|
|
PKIX_INITIALIZECHECKERSFAILED);
|
|
|
|
/*
|
|
* Validate the chain using this trust anchor and these
|
|
* checkers. (WARNING: checkers that use non-blocking I/O
|
|
* are not currently supported.)
|
|
*/
|
|
certCheckedIndex = 0;
|
|
checkerIndex = 0;
|
|
revChecking = PKIX_FALSE;
|
|
chainFailed = pkix_CheckChain
|
|
(certs,
|
|
numCerts,
|
|
anchor,
|
|
checkers,
|
|
revChecker,
|
|
validateCheckedCritExtOIDsList,
|
|
procParams,
|
|
&certCheckedIndex,
|
|
&checkerIndex,
|
|
&revChecking,
|
|
&reasonCode,
|
|
&nbioContext,
|
|
&finalPubKey,
|
|
&validPolicyTree,
|
|
pVerifyTree,
|
|
plContext);
|
|
|
|
if (chainFailed) {
|
|
|
|
/* cert chain failed to validate */
|
|
|
|
PKIX_DECREF(chainFailed);
|
|
PKIX_DECREF(anchor);
|
|
PKIX_DECREF(checkers);
|
|
PKIX_DECREF(validPolicyTree);
|
|
|
|
/* if last anchor, we fail; else, we try next anchor */
|
|
if (i == (numAnchors - 1)) { /* last anchor */
|
|
PKIX_ERROR(PKIX_VALIDATECHAINFAILED);
|
|
}
|
|
|
|
} else {
|
|
|
|
/* XXX Remove this assertion after 2014-12-31.
|
|
* See bug 946984. */
|
|
PORT_Assert(reasonCode == 0);
|
|
|
|
/* cert chain successfully validated! */
|
|
PKIX_CHECK(pkix_ValidateResult_Create
|
|
(finalPubKey,
|
|
anchor,
|
|
validPolicyTree,
|
|
&valResult,
|
|
plContext),
|
|
PKIX_VALIDATERESULTCREATEFAILED);
|
|
|
|
*pResult = valResult;
|
|
|
|
/* no need to try any more anchors in the loop */
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
cleanup:
|
|
|
|
PKIX_DECREF(finalPubKey);
|
|
PKIX_DECREF(certs);
|
|
PKIX_DECREF(anchors);
|
|
PKIX_DECREF(anchor);
|
|
PKIX_DECREF(checkers);
|
|
PKIX_DECREF(revChecker);
|
|
PKIX_DECREF(validPolicyTree);
|
|
PKIX_DECREF(chainFailed);
|
|
PKIX_DECREF(procParams);
|
|
PKIX_DECREF(userCheckers);
|
|
PKIX_DECREF(validateCheckedCritExtOIDsList);
|
|
|
|
PKIX_RETURN(VALIDATE);
|
|
}
|
|
|
|
/*
|
|
* FUNCTION: pkix_Validate_BuildUserOIDs
|
|
* DESCRIPTION:
|
|
*
|
|
* This function creates a List of the OIDs that are processed by the user
|
|
* checkers in the List pointed to by "userCheckers", storing the resulting
|
|
* List at "pUserCritOIDs". If the List of userCheckers is NULL, the output
|
|
* List will be NULL. Otherwise the output List will be non-NULL, but may be
|
|
* empty.
|
|
*
|
|
* PARAMETERS:
|
|
* "userCheckers"
|
|
* The address of the List of userCheckers.
|
|
* "pUserCritOIDs"
|
|
* The address at which the List is stored. Must be 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.
|
|
*/
|
|
static PKIX_Error *
|
|
pkix_Validate_BuildUserOIDs(
|
|
PKIX_List *userCheckers,
|
|
PKIX_List **pUserCritOIDs,
|
|
void *plContext)
|
|
{
|
|
PKIX_UInt32 numUserCheckers = 0;
|
|
PKIX_UInt32 i = 0;
|
|
PKIX_List *userCritOIDs = NULL;
|
|
PKIX_List *userCheckerExtOIDs = NULL;
|
|
PKIX_Boolean supportForwarding = PKIX_FALSE;
|
|
PKIX_CertChainChecker *userChecker = NULL;
|
|
|
|
PKIX_ENTER(VALIDATE, "pkix_Validate_BuildUserOIDs");
|
|
PKIX_NULLCHECK_ONE(pUserCritOIDs);
|
|
|
|
if (userCheckers != NULL) {
|
|
PKIX_CHECK(PKIX_List_Create(&userCritOIDs, plContext),
|
|
PKIX_LISTCREATEFAILED);
|
|
|
|
PKIX_CHECK(PKIX_List_GetLength
|
|
(userCheckers, &numUserCheckers, plContext),
|
|
PKIX_LISTGETLENGTHFAILED);
|
|
|
|
for (i = 0; i < numUserCheckers; i++) {
|
|
PKIX_CHECK(PKIX_List_GetItem
|
|
(userCheckers,
|
|
i,
|
|
(PKIX_PL_Object **) &userChecker,
|
|
plContext),
|
|
PKIX_LISTGETITEMFAILED);
|
|
|
|
PKIX_CHECK(PKIX_CertChainChecker_IsForwardCheckingSupported
|
|
(userChecker, &supportForwarding, plContext),
|
|
PKIX_CERTCHAINCHECKERISFORWARDCHECKINGSUPPORTEDFAILED);
|
|
|
|
if (supportForwarding == PKIX_FALSE) {
|
|
|
|
PKIX_CHECK(PKIX_CertChainChecker_GetSupportedExtensions
|
|
(userChecker, &userCheckerExtOIDs, plContext),
|
|
PKIX_CERTCHAINCHECKERGETSUPPORTEDEXTENSIONSFAILED);
|
|
|
|
if (userCheckerExtOIDs != NULL) {
|
|
PKIX_CHECK(pkix_List_AppendList
|
|
(userCritOIDs, userCheckerExtOIDs, plContext),
|
|
PKIX_LISTAPPENDLISTFAILED);
|
|
}
|
|
}
|
|
|
|
PKIX_DECREF(userCheckerExtOIDs);
|
|
PKIX_DECREF(userChecker);
|
|
}
|
|
}
|
|
|
|
*pUserCritOIDs = userCritOIDs;
|
|
|
|
cleanup:
|
|
|
|
if (PKIX_ERROR_RECEIVED){
|
|
PKIX_DECREF(userCritOIDs);
|
|
}
|
|
|
|
PKIX_DECREF(userCheckerExtOIDs);
|
|
PKIX_DECREF(userChecker);
|
|
|
|
PKIX_RETURN(VALIDATE);
|
|
}
|
|
|
|
/*
|
|
* FUNCTION: PKIX_ValidateChain_nb (see comments in pkix.h)
|
|
*/
|
|
PKIX_Error *
|
|
PKIX_ValidateChain_NB(
|
|
PKIX_ValidateParams *valParams,
|
|
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)
|
|
{
|
|
PKIX_UInt32 numCerts = 0;
|
|
PKIX_UInt32 numAnchors = 0;
|
|
PKIX_UInt32 i = 0;
|
|
PKIX_UInt32 certIndex = 0;
|
|
PKIX_UInt32 anchorIndex = 0;
|
|
PKIX_UInt32 checkerIndex = 0;
|
|
PKIX_UInt32 reasonCode = 0;
|
|
PKIX_Boolean revChecking = PKIX_FALSE;
|
|
PKIX_List *certs = NULL;
|
|
PKIX_List *anchors = NULL;
|
|
PKIX_List *checkers = NULL;
|
|
PKIX_List *userCheckers = NULL;
|
|
PKIX_List *validateCheckedCritExtOIDsList = NULL;
|
|
PKIX_TrustAnchor *anchor = NULL;
|
|
PKIX_ValidateResult *valResult = NULL;
|
|
PKIX_PL_PublicKey *finalPubKey = NULL;
|
|
PKIX_PolicyNode *validPolicyTree = NULL;
|
|
PKIX_ProcessingParams *procParams = NULL;
|
|
PKIX_RevocationChecker *revChecker = NULL;
|
|
PKIX_Error *chainFailed = NULL;
|
|
void *nbioContext = NULL;
|
|
|
|
PKIX_ENTER(VALIDATE, "PKIX_ValidateChain_NB");
|
|
PKIX_NULLCHECK_FOUR
|
|
(valParams, pCertIndex, pAnchorIndex, pCheckerIndex);
|
|
PKIX_NULLCHECK_FOUR(pRevChecking, pCheckers, pNBIOContext, pResult);
|
|
|
|
nbioContext = *pNBIOContext;
|
|
*pNBIOContext = NULL;
|
|
|
|
/* extract various parameters from valParams */
|
|
PKIX_CHECK(pkix_ExtractParameters
|
|
(valParams,
|
|
&certs,
|
|
&numCerts,
|
|
&procParams,
|
|
&anchors,
|
|
&numAnchors,
|
|
plContext),
|
|
PKIX_EXTRACTPARAMETERSFAILED);
|
|
|
|
/*
|
|
* Create a List of the OIDs that will be processed by the user
|
|
* checkers. User checkers are not responsible for removing OIDs from
|
|
* the List of unresolved critical extensions, as libpkix checkers are.
|
|
* So we add those user checkers' OIDs to the removal list to be taken
|
|
* out by CheckChain.
|
|
*/
|
|
PKIX_CHECK(PKIX_ProcessingParams_GetCertChainCheckers
|
|
(procParams, &userCheckers, plContext),
|
|
PKIX_PROCESSINGPARAMSGETCERTCHAINCHECKERSFAILED);
|
|
|
|
PKIX_CHECK(pkix_Validate_BuildUserOIDs
|
|
(userCheckers, &validateCheckedCritExtOIDsList, plContext),
|
|
PKIX_VALIDATEBUILDUSEROIDSFAILED);
|
|
|
|
PKIX_CHECK(PKIX_ProcessingParams_GetRevocationChecker
|
|
(procParams, &revChecker, plContext),
|
|
PKIX_PROCESSINGPARAMSGETREVOCATIONCHECKERFAILED);
|
|
|
|
/* Are we resuming after a WOULDBLOCK return, or starting anew ? */
|
|
if (nbioContext != NULL) {
|
|
/* Resuming */
|
|
certIndex = *pCertIndex;
|
|
anchorIndex = *pAnchorIndex;
|
|
checkerIndex = *pCheckerIndex;
|
|
revChecking = *pRevChecking;
|
|
checkers = *pCheckers;
|
|
*pCheckers = NULL;
|
|
}
|
|
|
|
/* try to validate the chain with each anchor */
|
|
for (i = anchorIndex; i < numAnchors; i++) {
|
|
|
|
/* get trust anchor */
|
|
PKIX_CHECK(PKIX_List_GetItem
|
|
(anchors, i, (PKIX_PL_Object **)&anchor, plContext),
|
|
PKIX_LISTGETITEMFAILED);
|
|
|
|
/* initialize checkers using information from trust anchor */
|
|
if (nbioContext == NULL) {
|
|
PKIX_CHECK(pkix_InitializeCheckers
|
|
(anchor,
|
|
procParams,
|
|
numCerts,
|
|
&checkers,
|
|
plContext),
|
|
PKIX_INITIALIZECHECKERSFAILED);
|
|
}
|
|
|
|
/*
|
|
* Validate the chain using this trust anchor and these
|
|
* checkers.
|
|
*/
|
|
chainFailed = pkix_CheckChain
|
|
(certs,
|
|
numCerts,
|
|
anchor,
|
|
checkers,
|
|
revChecker,
|
|
validateCheckedCritExtOIDsList,
|
|
procParams,
|
|
&certIndex,
|
|
&checkerIndex,
|
|
&revChecking,
|
|
&reasonCode,
|
|
&nbioContext,
|
|
&finalPubKey,
|
|
&validPolicyTree,
|
|
pVerifyTree,
|
|
plContext);
|
|
|
|
if (nbioContext != NULL) {
|
|
*pCertIndex = certIndex;
|
|
*pAnchorIndex = anchorIndex;
|
|
*pCheckerIndex = checkerIndex;
|
|
*pRevChecking = revChecking;
|
|
PKIX_INCREF(checkers);
|
|
*pCheckers = checkers;
|
|
*pNBIOContext = nbioContext;
|
|
goto cleanup;
|
|
}
|
|
|
|
if (chainFailed) {
|
|
|
|
/* cert chain failed to validate */
|
|
|
|
PKIX_DECREF(chainFailed);
|
|
PKIX_DECREF(anchor);
|
|
PKIX_DECREF(checkers);
|
|
PKIX_DECREF(validPolicyTree);
|
|
|
|
/* if last anchor, we fail; else, we try next anchor */
|
|
if (i == (numAnchors - 1)) { /* last anchor */
|
|
PKIX_ERROR(PKIX_VALIDATECHAINFAILED);
|
|
}
|
|
|
|
} else {
|
|
|
|
/* XXX Remove this assertion after 2014-12-31.
|
|
* See bug 946984. */
|
|
PORT_Assert(reasonCode == 0);
|
|
|
|
/* cert chain successfully validated! */
|
|
PKIX_CHECK(pkix_ValidateResult_Create
|
|
(finalPubKey,
|
|
anchor,
|
|
validPolicyTree,
|
|
&valResult,
|
|
plContext),
|
|
PKIX_VALIDATERESULTCREATEFAILED);
|
|
|
|
*pResult = valResult;
|
|
|
|
/* no need to try any more anchors in the loop */
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
cleanup:
|
|
|
|
PKIX_DECREF(finalPubKey);
|
|
PKIX_DECREF(certs);
|
|
PKIX_DECREF(anchors);
|
|
PKIX_DECREF(anchor);
|
|
PKIX_DECREF(checkers);
|
|
PKIX_DECREF(revChecker);
|
|
PKIX_DECREF(validPolicyTree);
|
|
PKIX_DECREF(chainFailed);
|
|
PKIX_DECREF(procParams);
|
|
PKIX_DECREF(userCheckers);
|
|
PKIX_DECREF(validateCheckedCritExtOIDsList);
|
|
|
|
PKIX_RETURN(VALIDATE);
|
|
}
|