The Tor Browser: security/nss/lib/libpkix/pkix/checker/pkix

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     4 /*

     5  * pkix_namechainingchecker.c

     6  *

     7  * Functions for name chaining validation

     8  *

     9  */

    12 #include "pkix_namechainingchecker.h"

    14 /* --Private-Functions-------------------------------------------- */

    16 /*

    17  * FUNCTION: pkix_NameChainingChecker_Check

    18  * (see comments for PKIX_CertChainChecker_CheckCallback in pkix_checker.h)

    19  */

    20 PKIX_Error *

    21 pkix_NameChainingChecker_Check(

    22         PKIX_CertChainChecker *checker,

    23         PKIX_PL_Cert *cert,

    24         PKIX_List *unresolvedCriticalExtensions,

    25         void **pNBIOContext,

    26         void *plContext)

    27 {

    28         PKIX_PL_X500Name *prevSubject = NULL;

    29         PKIX_PL_X500Name *currIssuer = NULL;

    30         PKIX_PL_X500Name *currSubject = NULL;

    31         PKIX_Boolean result;

    33         PKIX_ENTER(CERTCHAINCHECKER, "pkix_NameChainingChecker_Check");

    34         PKIX_NULLCHECK_THREE(checker, cert, pNBIOContext);

    36         *pNBIOContext = NULL; /* we never block on pending I/O */

    38         PKIX_CHECK(PKIX_CertChainChecker_GetCertChainCheckerState

    39                     (checker, (PKIX_PL_Object **)&prevSubject, plContext),

    40                     PKIX_CERTCHAINCHECKERGETCERTCHAINCHECKERSTATEFAILED);

    42         PKIX_CHECK(PKIX_PL_Cert_GetIssuer(cert, &currIssuer, plContext),

    43                     PKIX_CERTGETISSUERFAILED);

    45         if (prevSubject){

    46                 PKIX_CHECK(PKIX_PL_X500Name_Match

    47                             (prevSubject, currIssuer, &result, plContext),

    48                             PKIX_X500NAMEMATCHFAILED);

    49                 if (!result){

    50                         PKIX_ERROR(PKIX_NAMECHAININGCHECKFAILED);

    51                 }

    52         } else {

    53                 PKIX_ERROR(PKIX_NAMECHAININGCHECKFAILED);

    54         }

    56         PKIX_CHECK(PKIX_PL_Cert_GetSubject(cert, &currSubject, plContext),

    57                     PKIX_CERTGETSUBJECTFAILED);

    59         PKIX_CHECK(PKIX_CertChainChecker_SetCertChainCheckerState

    60                     (checker, (PKIX_PL_Object *)currSubject, plContext),

    61                     PKIX_CERTCHAINCHECKERSETCERTCHAINCHECKERSTATEFAILED);

    63 cleanup:

    65         PKIX_DECREF(prevSubject);

    66         PKIX_DECREF(currIssuer);

    67         PKIX_DECREF(currSubject);

    69         PKIX_RETURN(CERTCHAINCHECKER);

    71 }

    73 /*

    74  * FUNCTION: pkix_NameChainingChecker_Initialize

    75  * DESCRIPTION:

    76  *

    77  *  Creates a new CertChainChecker and stores it at "pChecker", where it will

    78  *  be used by pkix_NameChainingChecker_Check to check that the issuer name

    79  *  of the certificate matches the subject name in the checker's state. The

    80  *  X500Name pointed to by "trustedCAName" is used to initialize the checker's

    81  *  state.

    82  *

    83  * PARAMETERS:

    84  *  "trustedCAName"

    85  *      Address of X500Name representing the trusted CA Name used to

    86  *      initialize the state of this checker. Must be non-NULL.

    87  *  "pChecker"

    88  *      Address where object pointer will be stored. Must be non-NULL.

    89  *  "plContext"

    90  *      Platform-specific context pointer.

    91  * THREAD SAFETY:

    92  *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)

    93  * RETURNS:

    94  *  Returns NULL if the function succeeds.

    95  *  Returns a CertChainChecker Error if the function fails in a non-fatal way.

    96  *  Returns a Fatal Error if the function fails in an unrecoverable way.

    97  */

    98 PKIX_Error *

    99 pkix_NameChainingChecker_Initialize(

   100         PKIX_PL_X500Name *trustedCAName,

   101         PKIX_CertChainChecker **pChecker,

   102         void *plContext)

   103 {

   104         PKIX_ENTER(CERTCHAINCHECKER, "PKIX_NameChainingChecker_Initialize");

   105         PKIX_NULLCHECK_TWO(pChecker, trustedCAName);

   107         PKIX_CHECK(PKIX_CertChainChecker_Create

   108                     (pkix_NameChainingChecker_Check,

   109                     PKIX_FALSE,

   110                     PKIX_FALSE,

   111                     NULL,

   112                     (PKIX_PL_Object *)trustedCAName,

   113                     pChecker,

   114                     plContext),

   115                     PKIX_CERTCHAINCHECKERCREATEFAILED);

   117 cleanup:

   119         PKIX_RETURN(CERTCHAINCHECKER);

   121 }

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