[thirdparty/openssl.git] / crypto / x509v3 / v3_akey.c

/* v3_akey.c */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project 1999.
 */
/* ====================================================================
 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <stdio.h>
#include "cryptlib.h"
#include <openssl/conf.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/x509v3.h>

static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
			AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist);
static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
			X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);

const X509V3_EXT_METHOD v3_akey_id =
	{
	NID_authority_key_identifier,
	X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID),
	0,0,0,0,
	0,0,
	(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
	(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
	0,0,
	NULL
	};

static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
	     AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist)
{
	char *tmp;
	if(akeyid->keyid) {
		tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
		X509V3_add_value("keyid", tmp, &extlist);
		OPENSSL_free(tmp);
	}
	if(akeyid->issuer) 
		extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
	if(akeyid->serial) {
		tmp = hex_to_string(akeyid->serial->data,
						 akeyid->serial->length);
		X509V3_add_value("serial", tmp, &extlist);
		OPENSSL_free(tmp);
	}
	return extlist;
}

/*-
 * Currently two options:
 * keyid: use the issuers subject keyid, the value 'always' means its is
 * an error if the issuer certificate doesn't have a key id.
 * issuer: use the issuers cert issuer and serial number. The default is
 * to only use this if keyid is not present. With the option 'always'
 * this is always included.
 */

static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
	     X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values)
	{
	char keyid=0, issuer=0;
	int i;
	CONF_VALUE *cnf;
	ASN1_OCTET_STRING *ikeyid = NULL;
	X509_NAME *isname = NULL;
	GENERAL_NAMES * gens = NULL;
	GENERAL_NAME *gen = NULL;
	ASN1_INTEGER *serial = NULL;
	X509_EXTENSION *ext;
	X509 *cert;
	AUTHORITY_KEYID *akeyid;

	for(i = 0; i < sk_CONF_VALUE_num(values); i++)
		{
		cnf = sk_CONF_VALUE_value(values, i);
		if(!strcmp(cnf->name, "keyid"))
			{
			keyid = 1;
			if(cnf->value && !strcmp(cnf->value, "always"))
				keyid = 2;
			}
		else if(!strcmp(cnf->name, "issuer"))
			{
			issuer = 1;
			if(cnf->value && !strcmp(cnf->value, "always"))
				issuer = 2;
			}
		else
			{
			X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
			ERR_add_error_data(2, "name=", cnf->name);
			return NULL;
			}
		}

	if(!ctx || !ctx->issuer_cert)
		{
		if(ctx && (ctx->flags==CTX_TEST))
			return AUTHORITY_KEYID_new();
		X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
		return NULL;
		}

	cert = ctx->issuer_cert;

	if(keyid)
		{
		i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
		if((i >= 0)  && (ext = X509_get_ext(cert, i)))
			ikeyid = X509V3_EXT_d2i(ext);
		if(keyid==2 && !ikeyid)
			{
			X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
			return NULL;
			}
		}

	if((issuer && !ikeyid) || (issuer == 2))
		{
		isname = X509_NAME_dup(X509_get_issuer_name(cert));
		serial = M_ASN1_INTEGER_dup(X509_get_serialNumber(cert));
		if(!isname || !serial)
			{
			X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
			goto err;
			}
		}

	if(!(akeyid = AUTHORITY_KEYID_new())) goto err;

	if(isname)
		{
		if(!(gens = sk_GENERAL_NAME_new_null())
			|| !(gen = GENERAL_NAME_new())
			|| !sk_GENERAL_NAME_push(gens, gen))
			{
			X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
			goto err;
			}
		gen->type = GEN_DIRNAME;
		gen->d.dirn = isname;
		}

	akeyid->issuer = gens;
	akeyid->serial = serial;
	akeyid->keyid = ikeyid;

	return akeyid;

 err:
	X509_NAME_free(isname);
	M_ASN1_INTEGER_free(serial);
	M_ASN1_OCTET_STRING_free(ikeyid);
	return NULL;
	}
Commit	Line	Data
175b0942	1	/* v3_akey.c */
2e597528	2	/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
175b0942 DSH	3	* project 1999.
	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	*
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* licensing@OpenSSL.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*
	53	* This product includes cryptographic software written by Eric Young
	54	* (eay@cryptsoft.com). This product includes software written by Tim
	55	* Hudson (tjh@cryptsoft.com).
	56	*
	57	*/
	58
	59	#include <stdio.h>
e527ba09	60	#include "cryptlib.h"
ec577822 BM	61	#include <openssl/conf.h>
ec577822 BM	62	#include <openssl/asn1.h>
9d6b1ce6	63	#include <openssl/asn1t.h>
ec577822	64	#include <openssl/x509v3.h>
175b0942	65
ba404b5e DSH	66	static STACK_OF(CONF_VALUE) i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD method,
	67	AUTHORITY_KEYID akeyid, STACK_OF(CONF_VALUE) extlist);
	68	static AUTHORITY_KEYID v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD method,
	69	X509V3_CTX ctx, STACK_OF(CONF_VALUE) values);
175b0942	70
560b79cb	71	const X509V3_EXT_METHOD v3_akey_id =
8382ec5d RL	72	{
	73	NID_authority_key_identifier,
	74	X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID),
	75	0,0,0,0,
	76	0,0,
	77	(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
	78	(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
	79	0,0,
	80	NULL
	81	};
175b0942	82
ba404b5e DSH	83	static STACK_OF(CONF_VALUE) i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD method,
ba404b5e DSH	84	AUTHORITY_KEYID akeyid, STACK_OF(CONF_VALUE) extlist)
175b0942 DSH	85	{
	86	char *tmp;
	87	if(akeyid->keyid) {
	88	tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
	89	X509V3_add_value("keyid", tmp, &extlist);
26a3a48d	90	OPENSSL_free(tmp);
175b0942 DSH	91	}
	92	if(akeyid->issuer)
	93	extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
	94	if(akeyid->serial) {
	95	tmp = hex_to_string(akeyid->serial->data,
	96	akeyid->serial->length);
	97	X509V3_add_value("serial", tmp, &extlist);
26a3a48d	98	OPENSSL_free(tmp);
175b0942 DSH	99	}
	100	return extlist;
	101	}
	102
c80fd6b2 MC	103	/*-
c80fd6b2 MC	104	* Currently two options:
0be9747b DSH	105	* keyid: use the issuers subject keyid, the value 'always' means its is
	106	* an error if the issuer certificate doesn't have a key id.
	107	* issuer: use the issuers cert issuer and serial number. The default is
	108	* to only use this if keyid is not present. With the option 'always'
	109	* this is always included.
	110	*/
	111
6b691a5c	112	static AUTHORITY_KEYID v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD method,
ba404b5e	113	X509V3_CTX ctx, STACK_OF(CONF_VALUE) values)
8382ec5d RL	114	{
	115	char keyid=0, issuer=0;
	116	int i;
	117	CONF_VALUE *cnf;
	118	ASN1_OCTET_STRING *ikeyid = NULL;
	119	X509_NAME *isname = NULL;
	120	GENERAL_NAMES * gens = NULL;
	121	GENERAL_NAME *gen = NULL;
	122	ASN1_INTEGER *serial = NULL;
	123	X509_EXTENSION *ext;
	124	X509 *cert;
	125	AUTHORITY_KEYID *akeyid;
	126
	127	for(i = 0; i < sk_CONF_VALUE_num(values); i++)
	128	{
	129	cnf = sk_CONF_VALUE_value(values, i);
	130	if(!strcmp(cnf->name, "keyid"))
	131	{
	132	keyid = 1;
	133	if(cnf->value && !strcmp(cnf->value, "always"))
	134	keyid = 2;
	135	}
	136	else if(!strcmp(cnf->name, "issuer"))
	137	{
	138	issuer = 1;
	139	if(cnf->value && !strcmp(cnf->value, "always"))
	140	issuer = 2;
	141	}
	142	else
	143	{
	144	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
	145	ERR_add_error_data(2, "name=", cnf->name);
	146	return NULL;
	147	}
	148	}
	149
	150	if(!ctx \|\| !ctx->issuer_cert)
	151	{
	152	if(ctx && (ctx->flags==CTX_TEST))
	153	return AUTHORITY_KEYID_new();
	154	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
0be9747b	155	return NULL;
8382ec5d RL	156	}
	157
	158	cert = ctx->issuer_cert;
	159
	160	if(keyid)
	161	{
	162	i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
	163	if((i >= 0) && (ext = X509_get_ext(cert, i)))
	164	ikeyid = X509V3_EXT_d2i(ext);
	165	if(keyid==2 && !ikeyid)
	166	{
	167	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
	168	return NULL;
	169	}
	170	}
	171
	172	if((issuer && !ikeyid) \|\| (issuer == 2))
	173	{
	174	isname = X509_NAME_dup(X509_get_issuer_name(cert));
	175	serial = M_ASN1_INTEGER_dup(X509_get_serialNumber(cert));
	176	if(!isname \|\| !serial)
	177	{
	178	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
	179	goto err;
	180	}
	181	}
	182
	183	if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
	184
	185	if(isname)
	186	{
	187	if(!(gens = sk_GENERAL_NAME_new_null())
	188	\|\| !(gen = GENERAL_NAME_new())
	189	\|\| !sk_GENERAL_NAME_push(gens, gen))
	190	{
	191	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
	192	goto err;
	193	}
	194	gen->type = GEN_DIRNAME;
	195	gen->d.dirn = isname;
	196	}
	197
	198	akeyid->issuer = gens;
	199	akeyid->serial = serial;
	200	akeyid->keyid = ikeyid;
	201
	202	return akeyid;
	203
	204	err:
	205	X509_NAME_free(isname);
	206	M_ASN1_INTEGER_free(serial);
	207	M_ASN1_OCTET_STRING_free(ikeyid);
0be9747b	208	return NULL;
0be9747b	209	}