725 lines
21 KiB
C
725 lines
21 KiB
C
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/*
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* X.509 Certificate Revocation List (CRL) parsing
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*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* The ITU-T X.509 standard defines a certificate format for PKI.
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*
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* http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
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* http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
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* http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
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*
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* http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
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* http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
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*/
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#include "common.h"
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#if defined(MBEDTLS_X509_CRL_PARSE_C)
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#include "mbedtls/x509_crl.h"
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#include "mbedtls/error.h"
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#include "mbedtls/oid.h"
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#include "mbedtls/platform_util.h"
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#include <string.h>
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#if defined(MBEDTLS_PEM_PARSE_C)
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#include "mbedtls/pem.h"
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#endif
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#include "mbedtls/platform.h"
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#if defined(MBEDTLS_HAVE_TIME)
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#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
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#include <windows.h>
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#else
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#include <time.h>
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#endif
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#endif
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#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
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#include <stdio.h>
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#endif
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/*
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* Version ::= INTEGER { v1(0), v2(1) }
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*/
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static int x509_crl_get_version(unsigned char **p,
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const unsigned char *end,
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int *ver)
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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if ((ret = mbedtls_asn1_get_int(p, end, ver)) != 0) {
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if (ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) {
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*ver = 0;
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return 0;
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}
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_VERSION, ret);
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}
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return 0;
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}
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/*
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* X.509 CRL v2 extensions
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*
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* We currently don't parse any extension's content, but we do check that the
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* list of extensions is well-formed and abort on critical extensions (that
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* are unsupported as we don't support any extension so far)
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*/
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static int x509_get_crl_ext(unsigned char **p,
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const unsigned char *end,
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mbedtls_x509_buf *ext)
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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if (*p == end) {
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return 0;
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}
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/*
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* crlExtensions [0] EXPLICIT Extensions OPTIONAL
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* -- if present, version MUST be v2
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*/
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if ((ret = mbedtls_x509_get_ext(p, end, ext, 0)) != 0) {
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return ret;
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}
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end = ext->p + ext->len;
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while (*p < end) {
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/*
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* Extension ::= SEQUENCE {
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* extnID OBJECT IDENTIFIER,
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* critical BOOLEAN DEFAULT FALSE,
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* extnValue OCTET STRING }
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*/
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int is_critical = 0;
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const unsigned char *end_ext_data;
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size_t len;
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/* Get enclosing sequence tag */
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if ((ret = mbedtls_asn1_get_tag(p, end, &len,
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MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) != 0) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret);
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}
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end_ext_data = *p + len;
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/* Get OID (currently ignored) */
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if ((ret = mbedtls_asn1_get_tag(p, end_ext_data, &len,
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MBEDTLS_ASN1_OID)) != 0) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret);
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}
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*p += len;
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/* Get optional critical */
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if ((ret = mbedtls_asn1_get_bool(p, end_ext_data,
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&is_critical)) != 0 &&
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(ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG)) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret);
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}
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/* Data should be octet string type */
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if ((ret = mbedtls_asn1_get_tag(p, end_ext_data, &len,
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MBEDTLS_ASN1_OCTET_STRING)) != 0) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret);
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}
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/* Ignore data so far and just check its length */
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*p += len;
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if (*p != end_ext_data) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS,
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MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
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}
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/* Abort on (unsupported) critical extensions */
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if (is_critical) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS,
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MBEDTLS_ERR_ASN1_UNEXPECTED_TAG);
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}
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}
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if (*p != end) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS,
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MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
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}
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return 0;
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}
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/*
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* X.509 CRL v2 entry extensions (no extensions parsed yet.)
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*/
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static int x509_get_crl_entry_ext(unsigned char **p,
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const unsigned char *end,
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mbedtls_x509_buf *ext)
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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size_t len = 0;
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/* OPTIONAL */
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if (end <= *p) {
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return 0;
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}
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ext->tag = **p;
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ext->p = *p;
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/*
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* Get CRL-entry extension sequence header
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* crlEntryExtensions Extensions OPTIONAL -- if present, MUST be v2
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*/
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if ((ret = mbedtls_asn1_get_tag(p, end, &ext->len,
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MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) != 0) {
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if (ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) {
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ext->p = NULL;
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return 0;
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}
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret);
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}
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end = *p + ext->len;
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if (end != *p + ext->len) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS,
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MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
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}
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while (*p < end) {
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if ((ret = mbedtls_asn1_get_tag(p, end, &len,
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MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) != 0) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret);
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}
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*p += len;
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}
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if (*p != end) {
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_EXTENSIONS,
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MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
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}
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return 0;
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}
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/*
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* X.509 CRL Entries
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*/
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static int x509_get_entries(unsigned char **p,
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const unsigned char *end,
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mbedtls_x509_crl_entry *entry)
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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size_t entry_len;
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mbedtls_x509_crl_entry *cur_entry = entry;
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if (*p == end) {
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return 0;
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}
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if ((ret = mbedtls_asn1_get_tag(p, end, &entry_len,
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MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED)) != 0) {
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if (ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) {
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return 0;
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}
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return ret;
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}
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end = *p + entry_len;
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while (*p < end) {
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size_t len2;
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const unsigned char *end2;
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cur_entry->raw.tag = **p;
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if ((ret = mbedtls_asn1_get_tag(p, end, &len2,
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MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED)) != 0) {
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return ret;
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}
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cur_entry->raw.p = *p;
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cur_entry->raw.len = len2;
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end2 = *p + len2;
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if ((ret = mbedtls_x509_get_serial(p, end2, &cur_entry->serial)) != 0) {
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return ret;
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}
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if ((ret = mbedtls_x509_get_time(p, end2,
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&cur_entry->revocation_date)) != 0) {
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return ret;
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}
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if ((ret = x509_get_crl_entry_ext(p, end2,
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&cur_entry->entry_ext)) != 0) {
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return ret;
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}
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if (*p < end) {
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cur_entry->next = mbedtls_calloc(1, sizeof(mbedtls_x509_crl_entry));
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if (cur_entry->next == NULL) {
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return MBEDTLS_ERR_X509_ALLOC_FAILED;
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}
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cur_entry = cur_entry->next;
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}
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}
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return 0;
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}
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/*
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* Parse one CRLs in DER format and append it to the chained list
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*/
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int mbedtls_x509_crl_parse_der(mbedtls_x509_crl *chain,
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const unsigned char *buf, size_t buflen)
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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size_t len;
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unsigned char *p = NULL, *end = NULL;
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mbedtls_x509_buf sig_params1, sig_params2, sig_oid2;
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mbedtls_x509_crl *crl = chain;
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/*
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* Check for valid input
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*/
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if (crl == NULL || buf == NULL) {
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return MBEDTLS_ERR_X509_BAD_INPUT_DATA;
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}
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memset(&sig_params1, 0, sizeof(mbedtls_x509_buf));
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memset(&sig_params2, 0, sizeof(mbedtls_x509_buf));
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memset(&sig_oid2, 0, sizeof(mbedtls_x509_buf));
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/*
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* Add new CRL on the end of the chain if needed.
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*/
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while (crl->version != 0 && crl->next != NULL) {
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crl = crl->next;
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}
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if (crl->version != 0 && crl->next == NULL) {
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crl->next = mbedtls_calloc(1, sizeof(mbedtls_x509_crl));
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if (crl->next == NULL) {
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mbedtls_x509_crl_free(crl);
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return MBEDTLS_ERR_X509_ALLOC_FAILED;
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}
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mbedtls_x509_crl_init(crl->next);
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crl = crl->next;
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}
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/*
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* Copy raw DER-encoded CRL
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*/
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if (buflen == 0) {
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return MBEDTLS_ERR_X509_INVALID_FORMAT;
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}
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p = mbedtls_calloc(1, buflen);
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if (p == NULL) {
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return MBEDTLS_ERR_X509_ALLOC_FAILED;
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}
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memcpy(p, buf, buflen);
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crl->raw.p = p;
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crl->raw.len = buflen;
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end = p + buflen;
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/*
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* CertificateList ::= SEQUENCE {
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* tbsCertList TBSCertList,
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* signatureAlgorithm AlgorithmIdentifier,
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* signatureValue BIT STRING }
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*/
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if ((ret = mbedtls_asn1_get_tag(&p, end, &len,
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MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) != 0) {
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mbedtls_x509_crl_free(crl);
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return MBEDTLS_ERR_X509_INVALID_FORMAT;
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}
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if (len != (size_t) (end - p)) {
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mbedtls_x509_crl_free(crl);
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return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_FORMAT,
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MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
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}
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/*
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|
|
* TBSCertList ::= SEQUENCE {
|
||
|
|
*/
|
||
|
|
crl->tbs.p = p;
|
||
|
|
|
||
|
|
if ((ret = mbedtls_asn1_get_tag(&p, end, &len,
|
||
|
|
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_FORMAT, ret);
|
||
|
|
}
|
||
|
|
|
||
|
|
end = p + len;
|
||
|
|
crl->tbs.len = end - crl->tbs.p;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Version ::= INTEGER OPTIONAL { v1(0), v2(1) }
|
||
|
|
* -- if present, MUST be v2
|
||
|
|
*
|
||
|
|
* signature AlgorithmIdentifier
|
||
|
|
*/
|
||
|
|
if ((ret = x509_crl_get_version(&p, end, &crl->version)) != 0 ||
|
||
|
|
(ret = mbedtls_x509_get_alg(&p, end, &crl->sig_oid, &sig_params1)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (crl->version < 0 || crl->version > 1) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return MBEDTLS_ERR_X509_UNKNOWN_VERSION;
|
||
|
|
}
|
||
|
|
|
||
|
|
crl->version++;
|
||
|
|
|
||
|
|
if ((ret = mbedtls_x509_get_sig_alg(&crl->sig_oid, &sig_params1,
|
||
|
|
&crl->sig_md, &crl->sig_pk,
|
||
|
|
&crl->sig_opts)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* issuer Name
|
||
|
|
*/
|
||
|
|
crl->issuer_raw.p = p;
|
||
|
|
|
||
|
|
if ((ret = mbedtls_asn1_get_tag(&p, end, &len,
|
||
|
|
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_FORMAT, ret);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((ret = mbedtls_x509_get_name(&p, p + len, &crl->issuer)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
crl->issuer_raw.len = p - crl->issuer_raw.p;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* thisUpdate Time
|
||
|
|
* nextUpdate Time OPTIONAL
|
||
|
|
*/
|
||
|
|
if ((ret = mbedtls_x509_get_time(&p, end, &crl->this_update)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((ret = mbedtls_x509_get_time(&p, end, &crl->next_update)) != 0) {
|
||
|
|
if (ret != (MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_DATE,
|
||
|
|
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG)) &&
|
||
|
|
ret != (MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_DATE,
|
||
|
|
MBEDTLS_ERR_ASN1_OUT_OF_DATA))) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* revokedCertificates SEQUENCE OF SEQUENCE {
|
||
|
|
* userCertificate CertificateSerialNumber,
|
||
|
|
* revocationDate Time,
|
||
|
|
* crlEntryExtensions Extensions OPTIONAL
|
||
|
|
* -- if present, MUST be v2
|
||
|
|
* } OPTIONAL
|
||
|
|
*/
|
||
|
|
if ((ret = x509_get_entries(&p, end, &crl->entry)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* crlExtensions EXPLICIT Extensions OPTIONAL
|
||
|
|
* -- if present, MUST be v2
|
||
|
|
*/
|
||
|
|
if (crl->version == 2) {
|
||
|
|
ret = x509_get_crl_ext(&p, end, &crl->crl_ext);
|
||
|
|
|
||
|
|
if (ret != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (p != end) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_FORMAT,
|
||
|
|
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
|
||
|
|
}
|
||
|
|
|
||
|
|
end = crl->raw.p + crl->raw.len;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* signatureAlgorithm AlgorithmIdentifier,
|
||
|
|
* signatureValue BIT STRING
|
||
|
|
*/
|
||
|
|
if ((ret = mbedtls_x509_get_alg(&p, end, &sig_oid2, &sig_params2)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (crl->sig_oid.len != sig_oid2.len ||
|
||
|
|
memcmp(crl->sig_oid.p, sig_oid2.p, crl->sig_oid.len) != 0 ||
|
||
|
|
sig_params1.len != sig_params2.len ||
|
||
|
|
(sig_params1.len != 0 &&
|
||
|
|
memcmp(sig_params1.p, sig_params2.p, sig_params1.len) != 0)) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return MBEDTLS_ERR_X509_SIG_MISMATCH;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((ret = mbedtls_x509_get_sig(&p, end, &crl->sig)) != 0) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (p != end) {
|
||
|
|
mbedtls_x509_crl_free(crl);
|
||
|
|
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_X509_INVALID_FORMAT,
|
||
|
|
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Parse one or more CRLs and add them to the chained list
|
||
|
|
*/
|
||
|
|
int mbedtls_x509_crl_parse(mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen)
|
||
|
|
{
|
||
|
|
#if defined(MBEDTLS_PEM_PARSE_C)
|
||
|
|
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||
|
|
size_t use_len = 0;
|
||
|
|
mbedtls_pem_context pem;
|
||
|
|
int is_pem = 0;
|
||
|
|
|
||
|
|
if (chain == NULL || buf == NULL) {
|
||
|
|
return MBEDTLS_ERR_X509_BAD_INPUT_DATA;
|
||
|
|
}
|
||
|
|
|
||
|
|
do {
|
||
|
|
mbedtls_pem_init(&pem);
|
||
|
|
|
||
|
|
// Avoid calling mbedtls_pem_read_buffer() on non-null-terminated
|
||
|
|
// string
|
||
|
|
if (buflen == 0 || buf[buflen - 1] != '\0') {
|
||
|
|
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
|
||
|
|
} else {
|
||
|
|
ret = mbedtls_pem_read_buffer(&pem,
|
||
|
|
"-----BEGIN X509 CRL-----",
|
||
|
|
"-----END X509 CRL-----",
|
||
|
|
buf, NULL, 0, &use_len);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ret == 0) {
|
||
|
|
/*
|
||
|
|
* Was PEM encoded
|
||
|
|
*/
|
||
|
|
is_pem = 1;
|
||
|
|
|
||
|
|
buflen -= use_len;
|
||
|
|
buf += use_len;
|
||
|
|
|
||
|
|
if ((ret = mbedtls_x509_crl_parse_der(chain,
|
||
|
|
pem.buf, pem.buflen)) != 0) {
|
||
|
|
mbedtls_pem_free(&pem);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
} else if (is_pem) {
|
||
|
|
mbedtls_pem_free(&pem);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
mbedtls_pem_free(&pem);
|
||
|
|
}
|
||
|
|
/* In the PEM case, buflen is 1 at the end, for the terminated NULL byte.
|
||
|
|
* And a valid CRL cannot be less than 1 byte anyway. */
|
||
|
|
while (is_pem && buflen > 1);
|
||
|
|
|
||
|
|
if (is_pem) {
|
||
|
|
return 0;
|
||
|
|
} else
|
||
|
|
#endif /* MBEDTLS_PEM_PARSE_C */
|
||
|
|
return mbedtls_x509_crl_parse_der(chain, buf, buflen);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(MBEDTLS_FS_IO)
|
||
|
|
/*
|
||
|
|
* Load one or more CRLs and add them to the chained list
|
||
|
|
*/
|
||
|
|
int mbedtls_x509_crl_parse_file(mbedtls_x509_crl *chain, const char *path)
|
||
|
|
{
|
||
|
|
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||
|
|
size_t n;
|
||
|
|
unsigned char *buf;
|
||
|
|
|
||
|
|
if ((ret = mbedtls_pk_load_file(path, &buf, &n)) != 0) {
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = mbedtls_x509_crl_parse(chain, buf, n);
|
||
|
|
|
||
|
|
mbedtls_zeroize_and_free(buf, n);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
#endif /* MBEDTLS_FS_IO */
|
||
|
|
|
||
|
|
#if !defined(MBEDTLS_X509_REMOVE_INFO)
|
||
|
|
/*
|
||
|
|
* Return an informational string about the certificate.
|
||
|
|
*/
|
||
|
|
#define BEFORE_COLON 14
|
||
|
|
#define BC "14"
|
||
|
|
/*
|
||
|
|
* Return an informational string about the CRL.
|
||
|
|
*/
|
||
|
|
int mbedtls_x509_crl_info(char *buf, size_t size, const char *prefix,
|
||
|
|
const mbedtls_x509_crl *crl)
|
||
|
|
{
|
||
|
|
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||
|
|
size_t n;
|
||
|
|
char *p;
|
||
|
|
const mbedtls_x509_crl_entry *entry;
|
||
|
|
|
||
|
|
p = buf;
|
||
|
|
n = size;
|
||
|
|
|
||
|
|
ret = mbedtls_snprintf(p, n, "%sCRL version : %d",
|
||
|
|
prefix, crl->version);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
ret = mbedtls_snprintf(p, n, "\n%sissuer name : ", prefix);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
ret = mbedtls_x509_dn_gets(p, n, &crl->issuer);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
ret = mbedtls_snprintf(p, n, "\n%sthis update : " \
|
||
|
|
"%04d-%02d-%02d %02d:%02d:%02d", prefix,
|
||
|
|
crl->this_update.year, crl->this_update.mon,
|
||
|
|
crl->this_update.day, crl->this_update.hour,
|
||
|
|
crl->this_update.min, crl->this_update.sec);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
ret = mbedtls_snprintf(p, n, "\n%snext update : " \
|
||
|
|
"%04d-%02d-%02d %02d:%02d:%02d", prefix,
|
||
|
|
crl->next_update.year, crl->next_update.mon,
|
||
|
|
crl->next_update.day, crl->next_update.hour,
|
||
|
|
crl->next_update.min, crl->next_update.sec);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
entry = &crl->entry;
|
||
|
|
|
||
|
|
ret = mbedtls_snprintf(p, n, "\n%sRevoked certificates:",
|
||
|
|
prefix);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
while (entry != NULL && entry->raw.len != 0) {
|
||
|
|
ret = mbedtls_snprintf(p, n, "\n%sserial number: ",
|
||
|
|
prefix);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
ret = mbedtls_x509_serial_gets(p, n, &entry->serial);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
ret = mbedtls_snprintf(p, n, " revocation date: " \
|
||
|
|
"%04d-%02d-%02d %02d:%02d:%02d",
|
||
|
|
entry->revocation_date.year, entry->revocation_date.mon,
|
||
|
|
entry->revocation_date.day, entry->revocation_date.hour,
|
||
|
|
entry->revocation_date.min, entry->revocation_date.sec);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
entry = entry->next;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = mbedtls_snprintf(p, n, "\n%ssigned using : ", prefix);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
ret = mbedtls_x509_sig_alg_gets(p, n, &crl->sig_oid, crl->sig_pk, crl->sig_md,
|
||
|
|
crl->sig_opts);
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
ret = mbedtls_snprintf(p, n, "\n");
|
||
|
|
MBEDTLS_X509_SAFE_SNPRINTF;
|
||
|
|
|
||
|
|
return (int) (size - n);
|
||
|
|
}
|
||
|
|
#endif /* MBEDTLS_X509_REMOVE_INFO */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Initialize a CRL chain
|
||
|
|
*/
|
||
|
|
void mbedtls_x509_crl_init(mbedtls_x509_crl *crl)
|
||
|
|
{
|
||
|
|
memset(crl, 0, sizeof(mbedtls_x509_crl));
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Unallocate all CRL data
|
||
|
|
*/
|
||
|
|
void mbedtls_x509_crl_free(mbedtls_x509_crl *crl)
|
||
|
|
{
|
||
|
|
mbedtls_x509_crl *crl_cur = crl;
|
||
|
|
mbedtls_x509_crl *crl_prv;
|
||
|
|
mbedtls_x509_crl_entry *entry_cur;
|
||
|
|
mbedtls_x509_crl_entry *entry_prv;
|
||
|
|
|
||
|
|
while (crl_cur != NULL) {
|
||
|
|
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
|
||
|
|
mbedtls_free(crl_cur->sig_opts);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
mbedtls_asn1_free_named_data_list_shallow(crl_cur->issuer.next);
|
||
|
|
|
||
|
|
entry_cur = crl_cur->entry.next;
|
||
|
|
while (entry_cur != NULL) {
|
||
|
|
entry_prv = entry_cur;
|
||
|
|
entry_cur = entry_cur->next;
|
||
|
|
mbedtls_zeroize_and_free(entry_prv,
|
||
|
|
sizeof(mbedtls_x509_crl_entry));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (crl_cur->raw.p != NULL) {
|
||
|
|
mbedtls_zeroize_and_free(crl_cur->raw.p, crl_cur->raw.len);
|
||
|
|
}
|
||
|
|
|
||
|
|
crl_prv = crl_cur;
|
||
|
|
crl_cur = crl_cur->next;
|
||
|
|
|
||
|
|
mbedtls_platform_zeroize(crl_prv, sizeof(mbedtls_x509_crl));
|
||
|
|
if (crl_prv != crl) {
|
||
|
|
mbedtls_free(crl_prv);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* MBEDTLS_X509_CRL_PARSE_C */
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