xcrldist.c
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:7k
- /*
- * 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 Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
- /*
- * Code for dealing with x.509 v3 CRL Distribution Point extension.
- */
- #include "genname.h"
- #include "certt.h"
- #include "secerr.h"
- 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 CRLDistributionPointTemplate[] = {
- { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(CRLDistributionPoint) },
- { SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC |
- SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT | 0,
- offsetof(CRLDistributionPoint,derDistPoint), SEC_AnyTemplate},
- { SEC_ASN1_OPTIONAL | SEC_ASN1_CONTEXT_SPECIFIC | 1,
- offsetof(CRLDistributionPoint,bitsmap), 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 (PRArenaPool *arena, CERTCrlDistributionPoints *value,
- SECItem *derValue)
- {
- CRLDistributionPoint **pointList, *point;
- PRArenaPool *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;
- if (point->distPointType == generalName) {
- point->derFullName = cert_EncodeGeneralNames
- (ourPool, point->distPoint.fullName);
-
- if (point->derFullName) {
- rv = (SEC_ASN1EncodeItem (ourPool, &point->derDistPoint,
- point, FullNameTemplate) == NULL) ? SECFailure : SECSuccess;
- } else {
- rv = SECFailure;
- }
- }
- else if (point->distPointType == relativeDistinguishedName) {
- if (SEC_ASN1EncodeItem
- (ourPool, &point->derDistPoint,
- point, RelativeNameTemplate) == NULL)
- rv = SECFailure;
- }
- /* distributionPointName is omitted */
- else if (point->distPointType != 0) {
- PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
- rv = SECFailure;
- }
- 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->crlIssuer)
- break;
- }
-
- ++pointList;
- }
- if (rv != SECSuccess)
- break;
- if (SEC_ASN1EncodeItem
- (arena, derValue, value, CERTCRLDistributionPointsTemplate) == NULL) {
- rv = SECFailure;
- break;
- }
- } while (0);
- PORT_FreeArena (ourPool, PR_FALSE);
- return (rv);
- }
- CERTCrlDistributionPoints *
- CERT_DecodeCRLDistributionPoints (PRArenaPool *arena, SECItem *encodedValue)
- {
- CERTCrlDistributionPoints *value = NULL;
- CRLDistributionPoint **pointList, *point;
- SECStatus rv;
- PORT_Assert (arena);
- do {
- value = (CERTCrlDistributionPoints*)PORT_ArenaZAlloc (arena, sizeof (*value));
- if (value == NULL) {
- rv = SECFailure;
- break;
- }
-
- rv = SEC_ASN1DecodeItem
- (arena, &value->distPoints, CERTCRLDistributionPointsTemplate,
- encodedValue);
- if (rv != SECSuccess)
- break;
- pointList = value->distPoints;
- while (*pointList) {
- point = *pointList;
- /* get the data if the distributionPointName is not omitted */
- if (point->derDistPoint.data != NULL) {
- point->distPointType = (DistributionPointTypes)
- ((point->derDistPoint.data[0] & 0x1f) +1);
- if (point->distPointType == generalName) {
- SECItem innerDER;
-
- innerDER.data = NULL;
- rv = SEC_ASN1DecodeItem
- (arena, point, FullNameTemplate, &(point->derDistPoint));
- if (rv != SECSuccess)
- break;
- point->distPoint.fullName = cert_DecodeGeneralNames
- (arena, point->derFullName);
- if (!point->distPoint.fullName)
- break;
- }
- else if ( relativeDistinguishedName) {
- rv = SEC_ASN1DecodeItem
- (arena, point, RelativeNameTemplate, &(point->derDistPoint));
- if (rv != SECSuccess)
- break;
- }
- else {
- PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
- break;
- }
- }
- /* Get the reason code if it's not omitted in the encoding */
- if (point->bitsmap.data != NULL) {
- point->reasons.data = (unsigned char*) PORT_ArenaAlloc
- (arena, (point->bitsmap.len + 7) >> 3);
- if (!point->reasons.data) {
- rv = SECFailure;
- break;
- }
- PORT_Memcpy (point->reasons.data, point->bitsmap.data,
- point->reasons.len = ((point->bitsmap.len + 7) >> 3));
- }
- /* 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;
- }
- } while (0);
- return (rv == SECSuccess ? value : NULL);
- }