RetroZilla/security/nss/lib/certhigh/xcrldist.c
2015-10-20 23:03:22 -04:00

250 lines
7.6 KiB
C

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape security libraries.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* Code for dealing with x.509 v3 CRL Distribution Point extension.
*/
#include "genname.h"
#include "certt.h"
#include "secerr.h"
SEC_ASN1_MKSUB(SEC_AnyTemplate)
SEC_ASN1_MKSUB(SEC_BitStringTemplate)
extern void PrepareBitStringForEncoding (SECItem *bitMap, SECItem *value);
static const SEC_ASN1Template FullNameTemplate[] = {
{SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_CONSTRUCTED | 0,
offsetof (CRLDistributionPoint,derFullName),
CERT_GeneralNamesTemplate}
};
static const SEC_ASN1Template RelativeNameTemplate[] = {
{SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_CONSTRUCTED | 1,
offsetof (CRLDistributionPoint,distPoint.relativeName),
CERT_RDNTemplate}
};
static const SEC_ASN1Template DistributionPointNameTemplate[] = {
{ SEC_ASN1_CHOICE,
offsetof(CRLDistributionPoint, distPointType), NULL,
sizeof(CRLDistributionPoint) },
{ SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_CONSTRUCTED | 0,
offsetof (CRLDistributionPoint, derFullName),
CERT_GeneralNamesTemplate, generalName },
{ SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_CONSTRUCTED | 1,
offsetof (CRLDistributionPoint, distPoint.relativeName),
CERT_RDNTemplate, relativeDistinguishedName },
{ 0 }
};
static const SEC_ASN1Template CRLDistributionPointTemplate[] = {
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(CRLDistributionPoint) },
{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC |
SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT | SEC_ASN1_XTRN | 0,
offsetof(CRLDistributionPoint,derDistPoint),
SEC_ASN1_SUB(SEC_AnyTemplate)},
{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_XTRN | 1,
offsetof(CRLDistributionPoint,bitsmap),
SEC_ASN1_SUB(SEC_BitStringTemplate) },
{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC |
SEC_ASN1_CONSTRUCTED | 2,
offsetof(CRLDistributionPoint, derCrlIssuer),
CERT_GeneralNamesTemplate},
{ 0 }
};
const SEC_ASN1Template CERTCRLDistributionPointsTemplate[] = {
{SEC_ASN1_SEQUENCE_OF, 0, CRLDistributionPointTemplate}
};
SECStatus
CERT_EncodeCRLDistributionPoints (PLArenaPool *arena,
CERTCrlDistributionPoints *value,
SECItem *derValue)
{
CRLDistributionPoint **pointList, *point;
PLArenaPool *ourPool = NULL;
SECStatus rv = SECSuccess;
PORT_Assert (derValue);
PORT_Assert (value && value->distPoints);
do {
ourPool = PORT_NewArena (SEC_ASN1_DEFAULT_ARENA_SIZE);
if (ourPool == NULL) {
rv = SECFailure;
break;
}
pointList = value->distPoints;
while (*pointList) {
point = *pointList;
point->derFullName = NULL;
point->derDistPoint.data = NULL;
switch (point->distPointType) {
case generalName:
point->derFullName = cert_EncodeGeneralNames
(ourPool, point->distPoint.fullName);
if (!point->derFullName ||
!SEC_ASN1EncodeItem (ourPool, &point->derDistPoint,
point, FullNameTemplate))
rv = SECFailure;
break;
case relativeDistinguishedName:
if (!SEC_ASN1EncodeItem(ourPool, &point->derDistPoint,
point, RelativeNameTemplate))
rv = SECFailure;
break;
/* distributionPointName is omitted */
case 0: break;
default:
PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
rv = SECFailure;
break;
}
if (rv != SECSuccess)
break;
if (point->reasons.data)
PrepareBitStringForEncoding (&point->bitsmap, &point->reasons);
if (point->crlIssuer) {
point->derCrlIssuer = cert_EncodeGeneralNames
(ourPool, point->crlIssuer);
if (!point->derCrlIssuer) {
rv = SECFailure;
break;
}
}
++pointList;
}
if (rv != SECSuccess)
break;
if (!SEC_ASN1EncodeItem(arena, derValue, value,
CERTCRLDistributionPointsTemplate)) {
rv = SECFailure;
break;
}
} while (0);
PORT_FreeArena (ourPool, PR_FALSE);
return rv;
}
CERTCrlDistributionPoints *
CERT_DecodeCRLDistributionPoints (PLArenaPool *arena, SECItem *encodedValue)
{
CERTCrlDistributionPoints *value = NULL;
CRLDistributionPoint **pointList, *point;
SECStatus rv = SECSuccess;
SECItem newEncodedValue;
PORT_Assert (arena);
do {
value = PORT_ArenaZNew(arena, CERTCrlDistributionPoints);
if (value == NULL) {
rv = SECFailure;
break;
}
/* copy the DER into the arena, since Quick DER returns data that points
into the DER input, which may get freed by the caller */
rv = SECITEM_CopyItem(arena, &newEncodedValue, encodedValue);
if (rv != SECSuccess)
break;
rv = SEC_QuickDERDecodeItem(arena, &value->distPoints,
CERTCRLDistributionPointsTemplate, &newEncodedValue);
if (rv != SECSuccess)
break;
pointList = value->distPoints;
while (NULL != (point = *pointList)) {
/* get the data if the distributionPointName is not omitted */
if (point->derDistPoint.data != NULL) {
rv = SEC_QuickDERDecodeItem(arena, point,
DistributionPointNameTemplate, &(point->derDistPoint));
if (rv != SECSuccess)
break;
switch (point->distPointType) {
case generalName:
point->distPoint.fullName =
cert_DecodeGeneralNames(arena, point->derFullName);
rv = point->distPoint.fullName ? SECSuccess : SECFailure;
break;
case relativeDistinguishedName:
break;
default:
PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
rv = SECFailure;
break;
} /* end switch */
if (rv != SECSuccess)
break;
} /* end if */
/* Get the reason code if it's not omitted in the encoding */
if (point->bitsmap.data != NULL) {
SECItem bitsmap = point->bitsmap;
DER_ConvertBitString(&bitsmap);
rv = SECITEM_CopyItem(arena, &point->reasons, &bitsmap);
if (rv != SECSuccess)
break;
}
/* Get the crl issuer name if it's not omitted in the encoding */
if (point->derCrlIssuer != NULL) {
point->crlIssuer = cert_DecodeGeneralNames(arena,
point->derCrlIssuer);
if (!point->crlIssuer)
break;
}
++pointList;
} /* end while points remain */
} while (0);
return (rv == SECSuccess ? value : NULL);
}