Source code
Revision control
Copy as Markdown
Other Tools
/* 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
/*
* 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;
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);
}