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			For some reason, during the great renaming, some names that should have been prefixed with MBEDTLS_X509_ have only been prefixed with MBEDTLS_
		
			
				
	
	
		
			307 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			307 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /**
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|  * \file x509.h
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|  *
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|  * \brief X.509 generic defines and structures
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|  *
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|  *  Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
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|  *
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|  *  This file is part of mbed TLS (https://tls.mbed.org)
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|  *
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|  *  This program is free software; you can redistribute it and/or modify
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|  *  it under the terms of the GNU General Public License as published by
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|  *  the Free Software Foundation; either version 2 of the License, or
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|  *  (at your option) any later version.
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|  *
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|  *  This program is distributed in the hope that it will be useful,
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|  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|  *  GNU General Public License for more details.
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|  *
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|  *  You should have received a copy of the GNU General Public License along
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|  *  with this program; if not, write to the Free Software Foundation, Inc.,
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|  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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|  */
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| #ifndef MBEDTLS_X509_H
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| #define MBEDTLS_X509_H
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| 
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| #if !defined(MBEDTLS_CONFIG_FILE)
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| #include "config.h"
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| #else
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| #include MBEDTLS_CONFIG_FILE
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| #endif
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| 
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| #include "asn1.h"
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| #include "pk.h"
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| 
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| #if defined(MBEDTLS_RSA_C)
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| #include "rsa.h"
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| #endif
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| 
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| /**
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|  * \addtogroup x509_module
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|  * \{
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|  */
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| 
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| #if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA)
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| /**
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|  * Maximum number of intermediate CAs in a verification chain.
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|  * That is, maximum length of the chain, excluding the end-entity certificate
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|  * and the trusted root certificate.
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|  *
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|  * Set this to a low value to prevent an adversary from making you waste
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|  * resources verifying an overlong certificate chain.
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|  */
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| #define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8
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| #endif
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| 
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| /**
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|  * \name X509 Error codes
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|  * \{
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|  */
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| #define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE              -0x2080  /**< Unavailable feature, e.g. RSA hashing/encryption combination. */
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| #define MBEDTLS_ERR_X509_UNKNOWN_OID                      -0x2100  /**< Requested OID is unknown. */
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| #define MBEDTLS_ERR_X509_INVALID_FORMAT                   -0x2180  /**< The CRT/CRL/CSR format is invalid, e.g. different type expected. */
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| #define MBEDTLS_ERR_X509_INVALID_VERSION                  -0x2200  /**< The CRT/CRL/CSR version element is invalid. */
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| #define MBEDTLS_ERR_X509_INVALID_SERIAL                   -0x2280  /**< The serial tag or value is invalid. */
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| #define MBEDTLS_ERR_X509_INVALID_ALG                      -0x2300  /**< The algorithm tag or value is invalid. */
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| #define MBEDTLS_ERR_X509_INVALID_NAME                     -0x2380  /**< The name tag or value is invalid. */
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| #define MBEDTLS_ERR_X509_INVALID_DATE                     -0x2400  /**< The date tag or value is invalid. */
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| #define MBEDTLS_ERR_X509_INVALID_SIGNATURE                -0x2480  /**< The signature tag or value invalid. */
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| #define MBEDTLS_ERR_X509_INVALID_EXTENSIONS               -0x2500  /**< The extension tag or value is invalid. */
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| #define MBEDTLS_ERR_X509_UNKNOWN_VERSION                  -0x2580  /**< CRT/CRL/CSR has an unsupported version number. */
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| #define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG                  -0x2600  /**< Signature algorithm (oid) is unsupported. */
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| #define MBEDTLS_ERR_X509_SIG_MISMATCH                     -0x2680  /**< Signature algorithms do not match. (see \c ::mbedtls_x509_crt sig_oid) */
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| #define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED               -0x2700  /**< Certificate verification failed, e.g. CRL, CA or signature check failed. */
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| #define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT              -0x2780  /**< Format not recognized as DER or PEM. */
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| #define MBEDTLS_ERR_X509_BAD_INPUT_DATA                   -0x2800  /**< Input invalid. */
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| #define MBEDTLS_ERR_X509_MALLOC_FAILED                    -0x2880  /**< Allocation of memory failed. */
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| #define MBEDTLS_ERR_X509_FILE_IO_ERROR                    -0x2900  /**< Read/write of file failed. */
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| /* \} name */
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| 
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| /**
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|  * \name X509 Verify codes
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|  * \{
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|  */
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| /* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */
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| #define MBEDTLS_X509_BADCERT_EXPIRED             0x01  /**< The certificate validity has expired. */
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| #define MBEDTLS_X509_BADCERT_REVOKED             0x02  /**< The certificate has been revoked (is on a CRL). */
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| #define MBEDTLS_X509_BADCERT_CN_MISMATCH         0x04  /**< The certificate Common Name (CN) does not match with the expected CN. */
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| #define MBEDTLS_X509_BADCERT_NOT_TRUSTED         0x08  /**< The certificate is not correctly signed by the trusted CA. */
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| #define MBEDTLS_X509_BADCRL_NOT_TRUSTED          0x10  /**< The CRL is not correctly signed by the trusted CA. */
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| #define MBEDTLS_X509_BADCRL_EXPIRED              0x20  /**< The CRL is expired. */
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| #define MBEDTLS_X509_BADCERT_MISSING             0x40  /**< Certificate was missing. */
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| #define MBEDTLS_X509_BADCERT_SKIP_VERIFY         0x80  /**< Certificate verification was skipped. */
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| #define MBEDTLS_X509_BADCERT_OTHER             0x0100  /**< Other reason (can be used by verify callback) */
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| #define MBEDTLS_X509_BADCERT_FUTURE            0x0200  /**< The certificate validity starts in the future. */
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| #define MBEDTLS_X509_BADCRL_FUTURE             0x0400  /**< The CRL is from the future */
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| #define MBEDTLS_X509_BADCERT_KEY_USAGE         0x0800  /**< Usage does not match the keyUsage extension. */
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| #define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE     0x1000  /**< Usage does not match the extendedKeyUsage extension. */
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| #define MBEDTLS_X509_BADCERT_NS_CERT_TYPE      0x2000  /**< Usage does not match the nsCertType extension. */
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| /* \} name */
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| /* \} addtogroup x509_module */
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| 
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| /*
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|  * X.509 v3 Key Usage Extension flags
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|  */
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| #define MBEDTLS_X509_KU_DIGITAL_SIGNATURE            (0x80)  /* bit 0 */
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| #define MBEDTLS_X509_KU_NON_REPUDIATION              (0x40)  /* bit 1 */
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| #define MBEDTLS_X509_KU_KEY_ENCIPHERMENT             (0x20)  /* bit 2 */
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| #define MBEDTLS_X509_KU_DATA_ENCIPHERMENT            (0x10)  /* bit 3 */
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| #define MBEDTLS_X509_KU_KEY_AGREEMENT                (0x08)  /* bit 4 */
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| #define MBEDTLS_X509_KU_KEY_CERT_SIGN                (0x04)  /* bit 5 */
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| #define MBEDTLS_X509_KU_CRL_SIGN                     (0x02)  /* bit 6 */
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| 
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| /*
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|  * Netscape certificate types
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|  * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html)
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|  */
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| 
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| #define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT         (0x80)  /* bit 0 */
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| #define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER         (0x40)  /* bit 1 */
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| #define MBEDTLS_X509_NS_CERT_TYPE_EMAIL              (0x20)  /* bit 2 */
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| #define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING     (0x10)  /* bit 3 */
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| #define MBEDTLS_X509_NS_CERT_TYPE_RESERVED           (0x08)  /* bit 4 */
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| #define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA             (0x04)  /* bit 5 */
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| #define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA           (0x02)  /* bit 6 */
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| #define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA  (0x01)  /* bit 7 */
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| 
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| /*
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|  * X.509 extension types
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|  *
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|  * Comments refer to the status for using certificates. Status can be
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|  * different for writing certificates or reading CRLs or CSRs.
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|  */
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| #define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER    (1 << 0)
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| #define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER      (1 << 1)
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| #define MBEDTLS_X509_EXT_KEY_USAGE                   (1 << 2)
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| #define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES        (1 << 3)
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| #define MBEDTLS_X509_EXT_POLICY_MAPPINGS             (1 << 4)
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| #define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME            (1 << 5)    /* Supported (DNS) */
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| #define MBEDTLS_X509_EXT_ISSUER_ALT_NAME             (1 << 6)
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| #define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS     (1 << 7)
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| #define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS           (1 << 8)    /* Supported */
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| #define MBEDTLS_X509_EXT_NAME_CONSTRAINTS            (1 << 9)
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| #define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS          (1 << 10)
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| #define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE          (1 << 11)
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| #define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS     (1 << 12)
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| #define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY          (1 << 13)
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| #define MBEDTLS_X509_EXT_FRESHEST_CRL                (1 << 14)
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| 
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| #define MBEDTLS_X509_EXT_NS_CERT_TYPE                (1 << 16)   /* Parsed (and then ?) */
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| 
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| /*
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|  * Storage format identifiers
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|  * Recognized formats: PEM and DER
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|  */
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| #define MBEDTLS_X509_FORMAT_DER                 1
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| #define MBEDTLS_X509_FORMAT_PEM                 2
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| 
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| #define MBEDTLS_X509_MAX_DN_NAME_SIZE         256 /**< Maximum value size of a DN entry */
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| 
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| #ifdef __cplusplus
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| extern "C" {
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| #endif
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| 
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| /**
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|  * \addtogroup x509_module
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|  * \{ */
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| 
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| /**
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|  * \name Structures for parsing X.509 certificates, CRLs and CSRs
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|  * \{
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|  */
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| 
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| /**
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|  * Type-length-value structure that allows for ASN1 using DER.
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|  */
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| typedef mbedtls_asn1_buf mbedtls_x509_buf;
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| 
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| /**
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|  * Container for ASN1 bit strings.
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|  */
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| typedef mbedtls_asn1_bitstring mbedtls_x509_bitstring;
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| 
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| /**
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|  * Container for ASN1 named information objects.
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|  * It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.).
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|  */
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| typedef mbedtls_asn1_named_data mbedtls_x509_name;
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| 
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| /**
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|  * Container for a sequence of ASN.1 items
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|  */
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| typedef mbedtls_asn1_sequence mbedtls_x509_sequence;
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| 
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| /** Container for date and time (precision in seconds). */
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| typedef struct mbedtls_x509_time
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| {
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|     int year, mon, day;         /**< Date. */
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|     int hour, min, sec;         /**< Time. */
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| }
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| mbedtls_x509_time;
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| 
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| /** \} name Structures for parsing X.509 certificates, CRLs and CSRs */
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| /** \} addtogroup x509_module */
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| 
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| /**
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|  * \brief          Store the certificate DN in printable form into buf;
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|  *                 no more than size characters will be written.
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|  *
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|  * \param buf      Buffer to write to
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|  * \param size     Maximum size of buffer
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|  * \param dn       The X509 name to represent
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|  *
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|  * \return         The amount of data written to the buffer, or -1 in
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|  *                 case of an error.
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|  */
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| int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn );
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| 
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| /**
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|  * \brief          Store the certificate serial in printable form into buf;
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|  *                 no more than size characters will be written.
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|  *
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|  * \param buf      Buffer to write to
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|  * \param size     Maximum size of buffer
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|  * \param serial   The X509 serial to represent
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|  *
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|  * \return         The amount of data written to the buffer, or -1 in
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|  *                 case of an error.
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|  */
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| int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial );
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| 
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| /**
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|  * \brief          Check a given mbedtls_x509_time against the system time and check
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|  *                 if it is not expired.
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|  *
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|  * \param time     mbedtls_x509_time to check
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|  *
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|  * \return         0 if the mbedtls_x509_time is still valid,
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|  *                 1 otherwise.
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|  */
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| int mbedtls_x509_time_expired( const mbedtls_x509_time *time );
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| 
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| /**
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|  * \brief          Check a given mbedtls_x509_time against the system time and check
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|  *                 if it is not from the future.
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|  *
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|  * \param time     mbedtls_x509_time to check
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|  *
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|  * \return         0 if the mbedtls_x509_time is already valid,
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|  *                 1 otherwise.
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|  */
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| int mbedtls_x509_time_future( const mbedtls_x509_time *time );
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| 
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| /**
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|  * \brief          Checkup routine
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|  *
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|  * \return         0 if successful, or 1 if the test failed
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|  */
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| int mbedtls_x509_self_test( int verbose );
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| 
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| /*
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|  * Internal module functions. You probably do not want to use these unless you
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|  * know you do.
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|  */
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| int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
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|                    mbedtls_x509_name *cur );
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| int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end,
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|                        mbedtls_x509_buf *alg );
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| int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end,
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|                   mbedtls_x509_buf *alg, mbedtls_x509_buf *params );
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| #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
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| int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params,
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|                                 mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
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|                                 int *salt_len );
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| #endif
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| int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig );
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| int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params,
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|                       mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg,
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|                       void **sig_opts );
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| int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end,
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|                    mbedtls_x509_time *time );
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| int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end,
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|                      mbedtls_x509_buf *serial );
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| int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end,
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|                   mbedtls_x509_buf *ext, int tag );
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| int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
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|                        mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
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|                        const void *sig_opts );
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| int mbedtls_x509_key_size_helper( char *buf, size_t size, const char *name );
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| int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name );
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| int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
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|                         int critical, const unsigned char *val,
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|                         size_t val_len );
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| int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
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|                            mbedtls_asn1_named_data *first );
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| int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
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|                       mbedtls_asn1_named_data *first );
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| int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
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|                     const char *oid, size_t oid_len,
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|                     unsigned char *sig, size_t size );
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| 
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| #ifdef __cplusplus
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| }
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| #endif
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| 
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| #endif /* x509.h */
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