diff options
Diffstat (limited to 'lib/mbedtls-2.27.0/library/x509_crl.c')
| -rw-r--r-- | lib/mbedtls-2.27.0/library/x509_crl.c | 768 |
1 files changed, 0 insertions, 768 deletions
diff --git a/lib/mbedtls-2.27.0/library/x509_crl.c b/lib/mbedtls-2.27.0/library/x509_crl.c deleted file mode 100644 index ac4fc75..0000000 --- a/lib/mbedtls-2.27.0/library/x509_crl.c +++ /dev/null @@ -1,768 +0,0 @@ -/* - * X.509 Certidicate Revocation List (CRL) parsing - * - * Copyright The Mbed TLS Contributors - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * The ITU-T X.509 standard defines a certificate format for PKI. - * - * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) - * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) - * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) - * - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf - */ - -#include "common.h" - -#if defined(MBEDTLS_X509_CRL_PARSE_C) - -#include "mbedtls/x509_crl.h" -#include "mbedtls/error.h" -#include "mbedtls/oid.h" -#include "mbedtls/platform_util.h" - -#include <string.h> - -#if defined(MBEDTLS_PEM_PARSE_C) -#include "mbedtls/pem.h" -#endif - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include <stdlib.h> -#include <stdio.h> -#define mbedtls_free free -#define mbedtls_calloc calloc -#define mbedtls_snprintf snprintf -#endif - -#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) -#include <windows.h> -#else -#include <time.h> -#endif - -#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32) -#include <stdio.h> -#endif - -/* - * Version ::= INTEGER { v1(0), v2(1) } - */ -static int x509_crl_get_version( unsigned char **p, - const unsigned char *end, - int *ver ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - - if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - { - *ver = 0; - return( 0 ); - } - - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_VERSION, ret ) ); - } - - return( 0 ); -} - -/* - * X.509 CRL v2 extensions - * - * We currently don't parse any extension's content, but we do check that the - * list of extensions is well-formed and abort on critical extensions (that - * are unsupported as we don't support any extension so far) - */ -static int x509_get_crl_ext( unsigned char **p, - const unsigned char *end, - mbedtls_x509_buf *ext ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - - if( *p == end ) - return( 0 ); - - /* - * crlExtensions [0] EXPLICIT Extensions OPTIONAL - * -- if present, version MUST be v2 - */ - if( ( ret = mbedtls_x509_get_ext( p, end, ext, 0 ) ) != 0 ) - return( ret ); - - end = ext->p + ext->len; - - while( *p < end ) - { - /* - * Extension ::= SEQUENCE { - * extnID OBJECT IDENTIFIER, - * critical BOOLEAN DEFAULT FALSE, - * extnValue OCTET STRING } - */ - int is_critical = 0; - const unsigned char *end_ext_data; - size_t len; - - /* Get enclosing sequence tag */ - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret ) ); - - end_ext_data = *p + len; - - /* Get OID (currently ignored) */ - if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len, - MBEDTLS_ASN1_OID ) ) != 0 ) - { - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret ) ); - } - *p += len; - - /* Get optional critical */ - if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data, - &is_critical ) ) != 0 && - ( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) ) - { - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret ) ); - } - - /* Data should be octet string type */ - if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len, - MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret ) ); - - /* Ignore data so far and just check its length */ - *p += len; - if( *p != end_ext_data ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ) ); - - /* Abort on (unsupported) critical extensions */ - if( is_critical ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) ); - } - - if( *p != end ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ) ); - - return( 0 ); -} - -/* - * X.509 CRL v2 entry extensions (no extensions parsed yet.) - */ -static int x509_get_crl_entry_ext( unsigned char **p, - const unsigned char *end, - mbedtls_x509_buf *ext ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - size_t len = 0; - - /* OPTIONAL */ - if( end <= *p ) - return( 0 ); - - ext->tag = **p; - ext->p = *p; - - /* - * Get CRL-entry extension sequence header - * crlEntryExtensions Extensions OPTIONAL -- if present, MUST be v2 - */ - if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - { - ext->p = NULL; - return( 0 ); - } - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret ) ); - } - - end = *p + ext->len; - - if( end != *p + ext->len ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ) ); - - while( *p < end ) - { - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, ret ) ); - - *p += len; - } - - if( *p != end ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_EXTENSIONS, - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ) ); - - return( 0 ); -} - -/* - * X.509 CRL Entries - */ -static int x509_get_entries( unsigned char **p, - const unsigned char *end, - mbedtls_x509_crl_entry *entry ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - size_t entry_len; - mbedtls_x509_crl_entry *cur_entry = entry; - - if( *p == end ) - return( 0 ); - - if( ( ret = mbedtls_asn1_get_tag( p, end, &entry_len, - MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( 0 ); - - return( ret ); - } - - end = *p + entry_len; - - while( *p < end ) - { - size_t len2; - const unsigned char *end2; - - cur_entry->raw.tag = **p; - if( ( ret = mbedtls_asn1_get_tag( p, end, &len2, - MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 ) - { - return( ret ); - } - - cur_entry->raw.p = *p; - cur_entry->raw.len = len2; - end2 = *p + len2; - - if( ( ret = mbedtls_x509_get_serial( p, end2, &cur_entry->serial ) ) != 0 ) - return( ret ); - - if( ( ret = mbedtls_x509_get_time( p, end2, - &cur_entry->revocation_date ) ) != 0 ) - return( ret ); - - if( ( ret = x509_get_crl_entry_ext( p, end2, - &cur_entry->entry_ext ) ) != 0 ) - return( ret ); - - if( *p < end ) - { - cur_entry->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl_entry ) ); - - if( cur_entry->next == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - cur_entry = cur_entry->next; - } - } - - return( 0 ); -} - -/* - * Parse one CRLs in DER format and append it to the chained list - */ -int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain, - const unsigned char *buf, size_t buflen ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - size_t len; - unsigned char *p = NULL, *end = NULL; - mbedtls_x509_buf sig_params1, sig_params2, sig_oid2; - mbedtls_x509_crl *crl = chain; - - /* - * Check for valid input - */ - if( crl == NULL || buf == NULL ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) ); - memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) ); - memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) ); - - /* - * Add new CRL on the end of the chain if needed. - */ - while( crl->version != 0 && crl->next != NULL ) - crl = crl->next; - - if( crl->version != 0 && crl->next == NULL ) - { - crl->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl ) ); - - if( crl->next == NULL ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - } - - mbedtls_x509_crl_init( crl->next ); - crl = crl->next; - } - - /* - * Copy raw DER-encoded CRL - */ - if( buflen == 0 ) - return( MBEDTLS_ERR_X509_INVALID_FORMAT ); - - p = mbedtls_calloc( 1, buflen ); - if( p == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - memcpy( p, buf, buflen ); - - crl->raw.p = p; - crl->raw.len = buflen; - - end = p + buflen; - - /* - * CertificateList ::= SEQUENCE { - * tbsCertList TBSCertList, - * signatureAlgorithm AlgorithmIdentifier, - * signatureValue BIT STRING } - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT ); - } - - if( len != (size_t) ( end - p ) ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_X509_INVALID_FORMAT, - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ) ); - } - - /* - * 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_platform_zeroize( buf, n ); - mbedtls_free( buf ); - - return( ret ); -} -#endif /* MBEDTLS_FS_IO */ - -/* - * 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 ) ); -} - -/* - * 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_name *name_cur; - mbedtls_x509_name *name_prv; - mbedtls_x509_crl_entry *entry_cur; - mbedtls_x509_crl_entry *entry_prv; - - if( crl == NULL ) - return; - - do - { -#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) - mbedtls_free( crl_cur->sig_opts ); -#endif - - name_cur = crl_cur->issuer.next; - while( name_cur != NULL ) - { - name_prv = name_cur; - name_cur = name_cur->next; - mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); - mbedtls_free( name_prv ); - } - - entry_cur = crl_cur->entry.next; - while( entry_cur != NULL ) - { - entry_prv = entry_cur; - entry_cur = entry_cur->next; - mbedtls_platform_zeroize( entry_prv, - sizeof( mbedtls_x509_crl_entry ) ); - mbedtls_free( entry_prv ); - } - - if( crl_cur->raw.p != NULL ) - { - mbedtls_platform_zeroize( crl_cur->raw.p, crl_cur->raw.len ); - mbedtls_free( crl_cur->raw.p ); - } - - crl_cur = crl_cur->next; - } - while( crl_cur != NULL ); - - crl_cur = crl; - do - { - 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 ); - } - while( crl_cur != NULL ); -} - -#endif /* MBEDTLS_X509_CRL_PARSE_C */ |