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/**
* \file x509_crl.h
*
* \brief X.509 certificate revocation list 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.
*/
#ifndef MBEDTLS_X509_CRL_H
#define MBEDTLS_X509_CRL_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include "mbedtls/x509.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* \addtogroup x509_module
* \{ */
/**
* \name Structures and functions for parsing CRLs
* \{
*/
/**
* Certificate revocation list entry.
* Contains the CA-specific serial numbers and revocation dates.
*/
typedef struct mbedtls_x509_crl_entry
{
mbedtls_x509_buf raw;
mbedtls_x509_buf serial;
mbedtls_x509_time revocation_date;
mbedtls_x509_buf entry_ext;
struct mbedtls_x509_crl_entry *next;
}
mbedtls_x509_crl_entry;
/**
* Certificate revocation list structure.
* Every CRL may have multiple entries.
*/
typedef struct mbedtls_x509_crl
{
mbedtls_x509_buf raw; /**< The raw certificate data (DER). */
mbedtls_x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */
int version; /**< CRL version (1=v1, 2=v2) */
mbedtls_x509_buf sig_oid; /**< CRL signature type identifier */
mbedtls_x509_buf issuer_raw; /**< The raw issuer data (DER). */
mbedtls_x509_name issuer; /**< The parsed issuer data (named information object). */
mbedtls_x509_time this_update;
mbedtls_x509_time next_update;
mbedtls_x509_crl_entry entry; /**< The CRL entries containing the certificate revocation times for this CA. */
mbedtls_x509_buf crl_ext;
mbedtls_x509_buf sig_oid2;
mbedtls_x509_buf sig;
mbedtls_md_type_t sig_md; /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */
mbedtls_pk_type_t sig_pk; /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
void *sig_opts; /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */
struct mbedtls_x509_crl *next;
}
mbedtls_x509_crl;
/**
* \brief Parse a DER-encoded CRL and append it to the chained list
*
* \param chain points to the start of the chain
* \param buf buffer holding the CRL data in DER format
* \param buflen size of the buffer
* (including the terminating null byte for PEM data)
*
* \return 0 if successful, or a specific X509 or PEM error code
*/
int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain,
const unsigned char *buf, size_t buflen );
/**
* \brief Parse one or more CRLs and append them to the chained list
*
* \note Multiple CRLs are accepted only if using PEM format
*
* \param chain points to the start of the chain
* \param buf buffer holding the CRL data in PEM or DER format
* \param buflen size of the buffer
* (including the terminating null byte for PEM data)
*
* \return 0 if successful, or a specific X509 or PEM error code
*/
int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen );
#if defined(MBEDTLS_FS_IO)
/**
* \brief Load one or more CRLs and append them to the chained list
*
* \note Multiple CRLs are accepted only if using PEM format
*
* \param chain points to the start of the chain
* \param path filename to read the CRLs from (in PEM or DER encoding)
*
* \return 0 if successful, or a specific X509 or PEM error code
*/
int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path );
#endif /* MBEDTLS_FS_IO */
/**
* \brief Returns an informational string about the CRL.
*
* \param buf Buffer to write to
* \param size Maximum size of buffer
* \param prefix A line prefix
* \param crl The X509 CRL to represent
*
* \return The length of the string written (not including the
* terminated nul byte), or a negative error code.
*/
int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix,
const mbedtls_x509_crl *crl );
/**
* \brief Initialize a CRL (chain)
*
* \param crl CRL chain to initialize
*/
void mbedtls_x509_crl_init( mbedtls_x509_crl *crl );
/**
* \brief Unallocate all CRL data
*
* \param crl CRL chain to free
*/
void mbedtls_x509_crl_free( mbedtls_x509_crl *crl );
/* \} name */
/* \} addtogroup x509_module */
#ifdef __cplusplus
}
#endif
#endif /* mbedtls_x509_crl.h */
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