The Tor Browser: security/nss/lib/libpkix/pkix/crlsel/pkix_crlselector.c@b8a032363ba2 (annotated)

security/nss/lib/libpkix/pkix/crlsel/pkix_crlselector.c@b8a032363ba2 (annotated)

security/nss/lib/libpkix/pkix/crlsel/pkix_crlselector.c

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rwxr-xr-x

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /*
  * pkix_crlselector.c
  *
  * CRLSelector Function Definitions
  *
  */
 #include "pkix_crlselector.h"
 /* --CRLSelector Private-Functions-------------------------------------- */
 /*
  * FUNCTION: pkix_CRLSelector_Destroy
  * (see comments for PKIX_PL_DestructorCallback in pkix_pl_system.h)
  */
 static PKIX_Error *
 pkix_CRLSelector_Destroy(
         PKIX_PL_Object *object,
         void *plContext)
 {
         PKIX_CRLSelector *selector = NULL;
         PKIX_ENTER(CRLSELECTOR, "pkix_CRLSelector_Destroy");
         PKIX_NULLCHECK_ONE(object);
         PKIX_CHECK(pkix_CheckType(object, PKIX_CRLSELECTOR_TYPE, plContext),
                     PKIX_OBJECTNOTCRLSELECTOR);
         selector = (PKIX_CRLSelector *)object;
         selector->matchCallback = NULL;
         PKIX_DECREF(selector->params);
         PKIX_DECREF(selector->context);
 cleanup:
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: pkix_CRLSelector_ToString_Helper
  *
  * DESCRIPTION:
  *  Helper function that creates a string representation of CRLSelector
  *  pointed to by "crlParams" and stores its address in the object pointed to
  *  by "pString".
  *
  * PARAMETERS
  *  "list"
  *      Address of CRLSelector whose string representation is desired.
  *      Must be non-NULL.
  *  "pString"
  *      Address of object pointer's destination. Must be non-NULL.
  *  "plContext" - Platform-specific context pointer.
  *
  * THREAD SAFETY:
  *  Conditionally Thread Safe
  *      (see Thread Safety Definitions in Programmer's Guide)
  *
  * RETURNS:
  *  Returns NULL if the function succeeds.
  *  Returns a CRLSelector 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_CRLSelector_ToString_Helper(
         PKIX_CRLSelector *crlSelector,
         PKIX_PL_String **pString,
         void *plContext)
 {
         PKIX_PL_String *crlSelectorString = NULL;
         PKIX_PL_String *formatString = NULL;
         PKIX_PL_String *crlParamsString = NULL;
         PKIX_PL_String *crlContextString = NULL;
         char *asciiFormat = NULL;
         PKIX_ENTER(CRLSELECTOR, "pkix_CRLSelector_ToString_Helper");
         PKIX_NULLCHECK_TWO(crlSelector, pString);
         PKIX_NULLCHECK_ONE(crlSelector->params);
         asciiFormat =
                 "\n\t[\n"
                 "\tMatchCallback: 0x%x\n"
                 "\tParams:          %s\n"
                 "\tContext:         %s\n"
                 "\t]\n";
         PKIX_CHECK(PKIX_PL_String_Create
                     (PKIX_ESCASCII,
                     asciiFormat,
 ,
                     &formatString,
                     plContext),
                     PKIX_STRINGCREATEFAILED);
         /* Params */
         PKIX_TOSTRING
                     ((PKIX_PL_Object *)crlSelector->params,
                     &crlParamsString,
                     plContext,
                     PKIX_COMCRLSELPARAMSTOSTRINGFAILED);
         /* Context */
         PKIX_TOSTRING(crlSelector->context, &crlContextString, plContext,
                     PKIX_LISTTOSTRINGFAILED);
         PKIX_CHECK(PKIX_PL_Sprintf
                     (&crlSelectorString,
                     plContext,
                     formatString,
                     crlSelector->matchCallback,
                     crlParamsString,
                     crlContextString),
                     PKIX_SPRINTFFAILED);
         *pString = crlSelectorString;
 cleanup:
         PKIX_DECREF(crlParamsString);
         PKIX_DECREF(crlContextString);
         PKIX_DECREF(formatString);
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: pkix_CRLSelector_ToString
  * (see comments for PKIX_PL_ToStringCallback in pkix_pl_system.h)
  */
 static PKIX_Error *
 pkix_CRLSelector_ToString(
         PKIX_PL_Object *object,
         PKIX_PL_String **pString,
         void *plContext)
 {
         PKIX_PL_String *crlSelectorString = NULL;
         PKIX_CRLSelector *crlSelector = NULL;
         PKIX_ENTER(CRLSELECTOR, "pkix_CRLSelector_ToString");
         PKIX_NULLCHECK_TWO(object, pString);
         PKIX_CHECK(pkix_CheckType(object, PKIX_CRLSELECTOR_TYPE, plContext),
                     PKIX_OBJECTNOTCRLSELECTOR);
         crlSelector = (PKIX_CRLSelector *) object;
         PKIX_CHECK(pkix_CRLSelector_ToString_Helper
                     (crlSelector, &crlSelectorString, plContext),
                     PKIX_CRLSELECTORTOSTRINGHELPERFAILED);
         *pString = crlSelectorString;
 cleanup:
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: pkix_CRLSelector_Hashcode
  * (see comments for PKIX_PL_HashcodeCallback in pkix_pl_system.h)
  */
 static PKIX_Error *
 pkix_CRLSelector_Hashcode(
         PKIX_PL_Object *object,
         PKIX_UInt32 *pHashcode,
         void *plContext)
 {
         PKIX_UInt32 paramsHash = 0;
         PKIX_UInt32 contextHash = 0;
         PKIX_UInt32 hash = 0;
         PKIX_CRLSelector *crlSelector = NULL;
         PKIX_ENTER(CRLSELECTOR, "pkix_CRLSelector_Hashcode");
         PKIX_NULLCHECK_TWO(object, pHashcode);
         PKIX_CHECK(pkix_CheckType(object, PKIX_CRLSELECTOR_TYPE, plContext),
                     PKIX_OBJECTNOTCRLSELECTOR);
         crlSelector = (PKIX_CRLSelector *)object;
         PKIX_HASHCODE(crlSelector->params, &paramsHash, plContext,
                 PKIX_OBJECTHASHCODEFAILED);
         PKIX_HASHCODE(crlSelector->context, &contextHash, plContext,
                 PKIX_OBJECTHASHCODEFAILED);
         hash = 31 * ((PKIX_UInt32)crlSelector->matchCallback +
                     (contextHash << 3)) + paramsHash;
         *pHashcode = hash;
 cleanup:
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: pkix_CRLSelector_Equals
  * (see comments for PKIX_PL_Equals_Callback in pkix_pl_system.h)
  */
 static PKIX_Error *
 pkix_CRLSelector_Equals(
         PKIX_PL_Object *firstObject,
         PKIX_PL_Object *secondObject,
         PKIX_Boolean *pResult,
         void *plContext)
 {
         PKIX_CRLSelector *firstCrlSelector = NULL;
         PKIX_CRLSelector *secondCrlSelector = NULL;
         PKIX_UInt32 secondType;
         PKIX_Boolean cmpResult = PKIX_FALSE;
         PKIX_ENTER(CRLSELECTOR, "pkix_CRLSelector_Equals");
         PKIX_NULLCHECK_THREE(firstObject, secondObject, pResult);
         /* test that firstObject is a CRLSelector */
         PKIX_CHECK(pkix_CheckType
                     (firstObject, PKIX_CRLSELECTOR_TYPE, plContext),
                     PKIX_FIRSTOBJECTNOTCRLSELECTOR);
         firstCrlSelector = (PKIX_CRLSelector *)firstObject;
         secondCrlSelector = (PKIX_CRLSelector *)secondObject;
         /*
          * Since we know firstObject is a CRLSelector, if both references are
          * identical, they must be equal
          */
         if (firstCrlSelector == secondCrlSelector){
                 *pResult = PKIX_TRUE;
                 goto cleanup;
         }
         /*
          * If secondCRLSelector isn't a CRLSelector, we don't throw an error.
          * We simply return a Boolean result of FALSE
          */
         *pResult = PKIX_FALSE;
         PKIX_CHECK(PKIX_PL_Object_GetType
                     ((PKIX_PL_Object *)secondCrlSelector,
                     &secondType,
                     plContext),
                     PKIX_COULDNOTGETTYPEOFSECONDARGUMENT);
         if (secondType != PKIX_CRLSELECTOR_TYPE) {
                 goto cleanup;
         }
         /* Compare MatchCallback address */
         cmpResult = (firstCrlSelector->matchCallback ==
                     secondCrlSelector->matchCallback);
         if (cmpResult == PKIX_FALSE) {
                 goto cleanup;
         }
         /* Compare Common CRL Selector Params */
         PKIX_EQUALS
                 (firstCrlSelector->params,
                 secondCrlSelector->params,
                 &cmpResult,
                 plContext,
                 PKIX_COMCRLSELPARAMSEQUALSFAILED);
         if (cmpResult == PKIX_FALSE) {
                 goto cleanup;
         }
         /* Compare Context */
         PKIX_EQUALS
                 (firstCrlSelector->context,
                 secondCrlSelector->context,
                 &cmpResult,
                 plContext,
                 PKIX_COMCRLSELPARAMSEQUALSFAILED);
         *pResult = cmpResult;
 cleanup:
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: pkix_CRLSelector_Duplicate
  * (see comments for PKIX_PL_Duplicate_Callback in pkix_pl_system.h)
  */
 static PKIX_Error *
 pkix_CRLSelector_Duplicate(
         PKIX_PL_Object *object,
         PKIX_PL_Object **pNewObject,
         void *plContext)
 {
         PKIX_CRLSelector *old;
         PKIX_CRLSelector *new = NULL;
         PKIX_ENTER(CRLSELECTOR, "pkix_CRLSelector_Duplicate");
         PKIX_NULLCHECK_TWO(object, pNewObject);
         PKIX_CHECK(pkix_CheckType
                     (object, PKIX_CRLSELECTOR_TYPE, plContext),
                     PKIX_OBJECTNOTCRLSELECTOR);
         old = (PKIX_CRLSelector *)object;
         PKIX_CHECK(PKIX_PL_Object_Alloc
                     (PKIX_CRLSELECTOR_TYPE,
                     (PKIX_UInt32)(sizeof (PKIX_CRLSelector)),
                     (PKIX_PL_Object **)&new,
                     plContext),
                     PKIX_CREATECRLSELECTORDUPLICATEOBJECTFAILED);
         new->matchCallback = old->matchCallback;
         PKIX_DUPLICATE(old->params, &new->params, plContext,
                     PKIX_OBJECTDUPLICATEPARAMSFAILED);
         PKIX_DUPLICATE(old->context, &new->context, plContext,
                 PKIX_OBJECTDUPLICATECONTEXTFAILED);
         *pNewObject = (PKIX_PL_Object *)new;
 cleanup:
         if (PKIX_ERROR_RECEIVED){
                 PKIX_DECREF(new);
         }
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: pkix_CRLSelector_DefaultMatch
  *
  * DESCRIPTION:
  *  This function compares the parameter values (Issuer, date, and CRL number)
  *  set in the ComCRLSelParams of the CRLSelector pointed to by "selector" with
  *  the corresponding values in the CRL pointed to by "crl". When all the
  *  criteria set in the parameter values match the values in "crl", PKIX_TRUE is
  *  stored at "pMatch". If the CRL does not match the CRLSelector's criteria,
  *  PKIX_FALSE is stored at "pMatch".
  *
  * PARAMETERS
  *  "selector"
  *      Address of CRLSelector which is verified for a match
  *      Must be non-NULL.
  *  "crl"
  *      Address of the CRL object to be verified. Must be non-NULL.
  *  "pMatch"
  *      Address at which Boolean result is stored. Must be non-NULL.
  *  "plContext"
  *      Platform-specific context pointer.
  *
  * THREAD SAFETY:
  *  Conditionally Thread Safe
  *      (see Thread Safety Definitions in Programmer's Guide)
  *
  * RETURNS:
  *  Returns NULL if the function succeeds.
  *  Returns a CRLSelector 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_CRLSelector_DefaultMatch(
         PKIX_CRLSelector *selector,
         PKIX_PL_CRL *crl,
         PKIX_Boolean *pMatch,
         void *plContext)
 {
         PKIX_ComCRLSelParams *params = NULL;
         PKIX_PL_X500Name *crlIssuerName = NULL;
         PKIX_PL_X500Name *issuerName = NULL;
         PKIX_List *selIssuerNames = NULL;
         PKIX_PL_Date *selDate = NULL;
         PKIX_Boolean result = PKIX_TRUE;
         PKIX_UInt32 numIssuers = 0;
         PKIX_UInt32 i;
         PKIX_PL_BigInt *minCRLNumber = NULL;
         PKIX_PL_BigInt *maxCRLNumber = NULL;
         PKIX_PL_BigInt *crlNumber = NULL;
         PKIX_Boolean nistPolicyEnabled = PKIX_FALSE;
         PKIX_ENTER(CRLSELECTOR, "pkix_CRLSelector_DefaultMatch");
         PKIX_NULLCHECK_TWO(selector, crl);
         *pMatch = PKIX_TRUE;
         params = selector->params;
         /* No matching parameter provided, just a match */
         if (params == NULL) {
                 goto cleanup;
         }
         PKIX_CHECK(PKIX_ComCRLSelParams_GetIssuerNames
                     (params, &selIssuerNames, plContext),
                     PKIX_COMCRLSELPARAMSGETISSUERNAMESFAILED);
         /* Check for Issuers */
         if (selIssuerNames != NULL){
                 result = PKIX_FALSE;
                 PKIX_CHECK(PKIX_PL_CRL_GetIssuer
                             (crl, &crlIssuerName, plContext),
                             PKIX_CRLGETISSUERFAILED);
                 PKIX_CHECK(PKIX_List_GetLength
                             (selIssuerNames, &numIssuers, plContext),
                             PKIX_LISTGETLENGTHFAILED);
                 for (i = 0; i < numIssuers; i++){
                         PKIX_CHECK(PKIX_List_GetItem
                                     (selIssuerNames,
                                     i,
                                     (PKIX_PL_Object **)&issuerName,
                                     plContext),
                                     PKIX_LISTGETITEMFAILED);
                         PKIX_CHECK(PKIX_PL_X500Name_Match
                                     (crlIssuerName,
                                     issuerName,
                                     &result,
                                     plContext),
                                     PKIX_X500NAMEMATCHFAILED);
                         PKIX_DECREF(issuerName);
                         if (result == PKIX_TRUE) {
                                 break;
                         }
                 }
                 if (result == PKIX_FALSE) {
                         PKIX_CRLSELECTOR_DEBUG("Issuer Match Failed\N");
                         *pMatch = PKIX_FALSE;
                         goto cleanup;
                 }
         }
         PKIX_CHECK(PKIX_ComCRLSelParams_GetDateAndTime
                     (params, &selDate, plContext),
                     PKIX_COMCRLSELPARAMSGETDATEANDTIMEFAILED);
         /* Check for Date */
         if (selDate != NULL){
                 PKIX_CHECK(PKIX_ComCRLSelParams_GetNISTPolicyEnabled
                             (params, &nistPolicyEnabled, plContext),
                            PKIX_COMCRLSELPARAMSGETNISTPOLICYENABLEDFAILED);
                 /* check crl dates only for if NIST policies enforced */
                 if (nistPolicyEnabled) {
                         result = PKIX_FALSE;
                         PKIX_CHECK(PKIX_PL_CRL_VerifyUpdateTime
                                    (crl, selDate, &result, plContext),
                                    PKIX_CRLVERIFYUPDATETIMEFAILED);
                         if (result == PKIX_FALSE) {
                                 *pMatch = PKIX_FALSE;
                                 goto cleanup;
                         }
                 }
         }
         /* Check for CRL number in range */
         PKIX_CHECK(PKIX_PL_CRL_GetCRLNumber(crl, &crlNumber, plContext),
                     PKIX_CRLGETCRLNUMBERFAILED);
         if (crlNumber != NULL) {
                 result = PKIX_FALSE;
                 PKIX_CHECK(PKIX_ComCRLSelParams_GetMinCRLNumber
                             (params, &minCRLNumber, plContext),
                             PKIX_COMCRLSELPARAMSGETMINCRLNUMBERFAILED);
                 if (minCRLNumber != NULL) {
                         PKIX_CHECK(PKIX_PL_Object_Compare
                                     ((PKIX_PL_Object *)minCRLNumber,
                                     (PKIX_PL_Object *)crlNumber,
                                     &result,
                                     plContext),
                                     PKIX_OBJECTCOMPARATORFAILED);
                         if (result == 1) {
                                 PKIX_CRLSELECTOR_DEBUG
 					("CRL MinNumber Range Match Failed\n");
                         	*pMatch = PKIX_FALSE;
 	                        goto cleanup;
                         }
                 }
                 PKIX_CHECK(PKIX_ComCRLSelParams_GetMaxCRLNumber
                             (params, &maxCRLNumber, plContext),
                             PKIX_COMCRLSELPARAMSGETMAXCRLNUMBERFAILED);
                 if (maxCRLNumber != NULL) {
                         PKIX_CHECK(PKIX_PL_Object_Compare
                                     ((PKIX_PL_Object *)crlNumber,
                                     (PKIX_PL_Object *)maxCRLNumber,
                                     &result,
                                     plContext),
                                     PKIX_OBJECTCOMPARATORFAILED);
                         if (result == 1) {
                                PKIX_CRLSELECTOR_DEBUG
 					(PKIX_CRLMAXNUMBERRANGEMATCHFAILED);
                         	*pMatch = PKIX_FALSE;
 	                        goto cleanup;
                         }
                 }
         }
 cleanup:
         PKIX_DECREF(selIssuerNames);
         PKIX_DECREF(selDate);
         PKIX_DECREF(crlIssuerName);
         PKIX_DECREF(issuerName);
         PKIX_DECREF(crlNumber);
         PKIX_DECREF(minCRLNumber);
         PKIX_DECREF(maxCRLNumber);
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: pkix_CRLSelector_RegisterSelf
  * DESCRIPTION:
  *  Registers PKIX_CRLSELECTOR_TYPE and its related functions with
  *  systemClasses[]
  * THREAD SAFETY:
  *  Not Thread Safe - for performance and complexity reasons
  *
  *  Since this function is only called by PKIX_PL_Initialize, which should
  *  only be called once, it is acceptable that this function is not
  *  thread-safe.
  */
 PKIX_Error *
 pkix_CRLSelector_RegisterSelf(void *plContext)
 {
         extern pkix_ClassTable_Entry systemClasses[PKIX_NUMTYPES];
         pkix_ClassTable_Entry entry;
         PKIX_ENTER(CRLSELECTOR, "pkix_CRLSelector_RegisterSelf");
         entry.description = "CRLSelector";
         entry.objCounter = 0;
         entry.typeObjectSize = sizeof(PKIX_CRLSelector);
         entry.destructor = pkix_CRLSelector_Destroy;
         entry.equalsFunction = pkix_CRLSelector_Equals;
         entry.hashcodeFunction = pkix_CRLSelector_Hashcode;
         entry.toStringFunction = pkix_CRLSelector_ToString;
         entry.comparator = NULL;
         entry.duplicateFunction = pkix_CRLSelector_Duplicate;
         systemClasses[PKIX_CRLSELECTOR_TYPE] = entry;
         PKIX_RETURN(CRLSELECTOR);
 }
 /* --CRLSelector-Public-Functions---------------------------------------- */
 PKIX_Error *
 pkix_CRLSelector_Create(
         PKIX_CRLSelector_MatchCallback callback,
         PKIX_PL_Object *crlSelectorContext,
         PKIX_CRLSelector **pSelector,
         void *plContext)
 {
         PKIX_CRLSelector *selector = NULL;
         PKIX_ENTER(CRLSELECTOR, "PKIX_CRLSelector_Create");
         PKIX_NULLCHECK_ONE(pSelector);
         PKIX_CHECK(PKIX_PL_Object_Alloc
                     (PKIX_CRLSELECTOR_TYPE,
                     sizeof (PKIX_CRLSelector),
                     (PKIX_PL_Object **)&selector,
                     plContext),
                     PKIX_COULDNOTCREATECRLSELECTOROBJECT);
         /*
          * if user specified a particular match callback, we use that one.
          * otherwise, we use the default match provided.
          */
         if (callback != NULL){
                 selector->matchCallback = callback;
         } else {
                 selector->matchCallback = pkix_CRLSelector_DefaultMatch;
         }
         /* initialize other fields */
         selector->params = NULL;
         PKIX_INCREF(crlSelectorContext);
         selector->context = crlSelectorContext;
         *pSelector = selector;
         selector = NULL;
 cleanup:
         PKIX_DECREF(selector);
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: PKIX_CRLSelector_Create (see comments in pkix_crlsel.h)
  */
 PKIX_Error *
 PKIX_CRLSelector_Create(
         PKIX_PL_Cert *issuer,
         PKIX_List *crldpList,
         PKIX_PL_Date *date,
         PKIX_CRLSelector **pCrlSelector,
         void *plContext)
 {
     PKIX_PL_X500Name *issuerName = NULL;
     PKIX_PL_Date *nowDate = NULL;
     PKIX_ComCRLSelParams *comCrlSelParams = NULL;
     PKIX_CRLSelector *crlSelector = NULL;
     PKIX_ENTER(CERTCHAINCHECKER, "PKIX_CrlSelector_Create");
     PKIX_NULLCHECK_ONE(issuer);
     PKIX_CHECK(
         PKIX_PL_Cert_GetSubject(issuer, &issuerName, plContext),
         PKIX_CERTGETISSUERFAILED);
     if (date != NULL) {
             PKIX_INCREF(date);
             nowDate = date;
     } else {
         PKIX_CHECK(
                 PKIX_PL_Date_Create_UTCTime(NULL, &nowDate, plContext),
                 PKIX_DATECREATEUTCTIMEFAILED);
     }
     PKIX_CHECK(
         PKIX_ComCRLSelParams_Create(&comCrlSelParams, plContext),
             PKIX_COMCRLSELPARAMSCREATEFAILED);
     PKIX_CHECK(
         PKIX_ComCRLSelParams_AddIssuerName(comCrlSelParams, issuerName,
                                            plContext),
         PKIX_COMCRLSELPARAMSADDISSUERNAMEFAILED);
     PKIX_CHECK(
         PKIX_ComCRLSelParams_SetCrlDp(comCrlSelParams, crldpList,
                                       plContext),
         PKIX_COMCRLSELPARAMSSETCERTFAILED);
     PKIX_CHECK(
         PKIX_ComCRLSelParams_SetDateAndTime(comCrlSelParams, nowDate,
                                             plContext),
         PKIX_COMCRLSELPARAMSSETDATEANDTIMEFAILED);
     PKIX_CHECK(
         pkix_CRLSelector_Create(NULL, NULL, &crlSelector, plContext),
         PKIX_CRLSELECTORCREATEFAILED);
     PKIX_CHECK(
         PKIX_CRLSelector_SetCommonCRLSelectorParams(crlSelector,
                                                     comCrlSelParams,
                                                     plContext),
         PKIX_CRLSELECTORSETCOMMONCRLSELECTORPARAMSFAILED);
     *pCrlSelector = crlSelector;
     crlSelector = NULL;
 cleanup:
     PKIX_DECREF(issuerName);
     PKIX_DECREF(nowDate);
     PKIX_DECREF(comCrlSelParams);
     PKIX_DECREF(crlSelector);
     PKIX_RETURN(CERTCHAINCHECKER);
 }
 /*
  * FUNCTION: PKIX_CRLSelector_GetMatchCallback (see comments in pkix_crlsel.h)
  */
 PKIX_Error *
 PKIX_CRLSelector_GetMatchCallback(
         PKIX_CRLSelector *selector,
         PKIX_CRLSelector_MatchCallback *pCallback,
         void *plContext)
 {
         PKIX_ENTER(CRLSELECTOR, "PKIX_CRLSelector_GetMatchCallback");
         PKIX_NULLCHECK_TWO(selector, pCallback);
         *pCallback = selector->matchCallback;
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: PKIX_CRLSelector_GetCRLSelectorContext
  * (see comments in pkix_crlsel.h)
  */
 PKIX_Error *
 PKIX_CRLSelector_GetCRLSelectorContext(
         PKIX_CRLSelector *selector,
         void **pCrlSelectorContext,
         void *plContext)
 {
         PKIX_ENTER(CRLSELECTOR, "PKIX_CRLSelector_GetCRLSelectorContext");
         PKIX_NULLCHECK_TWO(selector, pCrlSelectorContext);
         PKIX_INCREF(selector->context);
         *pCrlSelectorContext = selector->context;
 cleanup:
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: PKIX_CRLSelector_GetCommonCRLSelectorParams
  * (see comments in pkix_crlsel.h)
  */
 PKIX_Error *
 PKIX_CRLSelector_GetCommonCRLSelectorParams(
         PKIX_CRLSelector *selector,
         PKIX_ComCRLSelParams **pParams,
         void *plContext)
 {
         PKIX_ENTER(CRLSELECTOR, "PKIX_CRLSelector_GetCommonCRLSelectorParams");
         PKIX_NULLCHECK_TWO(selector, pParams);
         PKIX_INCREF(selector->params);
         *pParams = selector->params;
 cleanup:
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: PKIX_CRLSelector_SetCommonCRLSelectorParams
  * (see comments in pkix_crlsel.h)
  */
 PKIX_Error *
 PKIX_CRLSelector_SetCommonCRLSelectorParams(
         PKIX_CRLSelector *selector,
         PKIX_ComCRLSelParams *params,
         void *plContext)
 {
         PKIX_ENTER(CRLSELECTOR, "PKIX_CRLSelector_SetCommonCRLSelectorParams");
         PKIX_NULLCHECK_TWO(selector, params);
         PKIX_DECREF(selector->params);
         PKIX_INCREF(params);
         selector->params = params;
         PKIX_CHECK(PKIX_PL_Object_InvalidateCache
                     ((PKIX_PL_Object *)selector, plContext),
                     PKIX_OBJECTINVALIDATECACHEFAILED);
 cleanup:
         PKIX_RETURN(CRLSELECTOR);
 }
 /*
  * FUNCTION: pkix_CRLSelector_Select
  * DESCRIPTION:
  *
  *  This function applies the selector pointed to by "selector" to each CRL,
  *  in turn, in the List pointed to by "before", and creates a List containing
  *  all the CRLs that matched, or passed the selection process, storing that
  *  List at "pAfter". If no CRLs match, an empty List is stored at "pAfter".
  *
  *  The List returned in "pAfter" is immutable.
  *
  * PARAMETERS:
  *  "selector"
  *      Address of CRLSelelector to be applied to the List. Must be non-NULL.
  *  "before"
  *      Address of List that is to be filtered. Must be non-NULL.
  *  "pAfter"
  *      Address at which resulting List, possibly empty, 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 CRLSelector 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_CRLSelector_Select(
 	PKIX_CRLSelector *selector,
 	PKIX_List *before,
 	PKIX_List **pAfter,
 	void *plContext)
 {
 	PKIX_Boolean match = PKIX_FALSE;
 	PKIX_UInt32 numBefore = 0;
 	PKIX_UInt32 i = 0;
 	PKIX_List *filtered = NULL;
 	PKIX_PL_CRL *candidate = NULL;
         PKIX_ENTER(CRLSELECTOR, "PKIX_CRLSelector_Select");
         PKIX_NULLCHECK_THREE(selector, before, pAfter);
         PKIX_CHECK(PKIX_List_Create(&filtered, plContext),
                 PKIX_LISTCREATEFAILED);
         PKIX_CHECK(PKIX_List_GetLength(before, &numBefore, plContext),
                 PKIX_LISTGETLENGTHFAILED);
         for (i = 0; i < numBefore; i++) {
                 PKIX_CHECK(PKIX_List_GetItem
                         (before, i, (PKIX_PL_Object **)&candidate, plContext),
                         PKIX_LISTGETITEMFAILED);
                 PKIX_CHECK_ONLY_FATAL(selector->matchCallback
                         (selector, candidate, &match, plContext),
                         PKIX_CRLSELECTORMATCHCALLBACKFAILED);
                 if (!(PKIX_ERROR_RECEIVED) && match == PKIX_TRUE) {
                         PKIX_CHECK_ONLY_FATAL(PKIX_List_AppendItem
                                 (filtered,
                                 (PKIX_PL_Object *)candidate,
                                 plContext),
                                 PKIX_LISTAPPENDITEMFAILED);
                 }
                 pkixTempErrorReceived = PKIX_FALSE;
                 PKIX_DECREF(candidate);
         }
         PKIX_CHECK(PKIX_List_SetImmutable(filtered, plContext),
                 PKIX_LISTSETIMMUTABLEFAILED);
         /* Don't throw away the list if one CRL was bad! */
         pkixTempErrorReceived = PKIX_FALSE;
         *pAfter = filtered;
         filtered = NULL;
 cleanup:
         PKIX_DECREF(filtered);
         PKIX_DECREF(candidate);
         PKIX_RETURN(CRLSELECTOR);
 }

The Tor Browser / annotate

security/nss/lib/libpkix/pkix/crlsel/pkix_crlselector.c@b8a032363ba2 (annotated)

security/nss/lib/libpkix/pkix/crlsel/pkix_crlselector.c