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

/* v3_akey.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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/asn1_mac.h>
#include <openssl/x509v3.h>

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

X509V3_EXT_METHOD v3_akey_id = {
NID_authority_key_identifier, X509V3_EXT_MULTILINE,
(X509V3_EXT_NEW)AUTHORITY_KEYID_new,
AUTHORITY_KEYID_free,
(X509V3_EXT_D2I)d2i_AUTHORITY_KEYID,
i2d_AUTHORITY_KEYID,
NULL, NULL,
(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
NULL,NULL,
NULL
};


int i2d_AUTHORITY_KEYID(AUTHORITY_KEYID *a, unsigned char **pp)
{
	M_ASN1_I2D_vars(a);

	M_ASN1_I2D_len_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING);
	M_ASN1_I2D_len_IMP_opt (a->issuer, i2d_GENERAL_NAMES);
	M_ASN1_I2D_len_IMP_opt (a->serial, i2d_ASN1_INTEGER);

	M_ASN1_I2D_seq_total();

	M_ASN1_I2D_put_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING, 0);
	M_ASN1_I2D_put_IMP_opt (a->issuer, i2d_GENERAL_NAMES, 1);
	M_ASN1_I2D_put_IMP_opt (a->serial, i2d_ASN1_INTEGER, 2);

	M_ASN1_I2D_finish();
}

AUTHORITY_KEYID *AUTHORITY_KEYID_new(void)
{
	AUTHORITY_KEYID *ret=NULL;
	ASN1_CTX c;
	M_ASN1_New_Malloc(ret, AUTHORITY_KEYID);
	ret->keyid = NULL;
	ret->issuer = NULL;
	ret->serial = NULL;
	return (ret);
	M_ASN1_New_Error(ASN1_F_AUTHORITY_KEYID_NEW);
}

AUTHORITY_KEYID *d2i_AUTHORITY_KEYID(AUTHORITY_KEYID **a, unsigned char **pp,
	     long length)
{
	M_ASN1_D2I_vars(a,AUTHORITY_KEYID *,AUTHORITY_KEYID_new);
	M_ASN1_D2I_Init();
	M_ASN1_D2I_start_sequence();
	M_ASN1_D2I_get_IMP_opt (ret->keyid, d2i_ASN1_OCTET_STRING, 0,
							V_ASN1_OCTET_STRING);
	M_ASN1_D2I_get_IMP_opt (ret->issuer, d2i_GENERAL_NAMES, 1,
							V_ASN1_SEQUENCE);
	M_ASN1_D2I_get_IMP_opt (ret->serial, d2i_ASN1_INTEGER, 2,
							V_ASN1_INTEGER);
	M_ASN1_D2I_Finish(a, AUTHORITY_KEYID_free, ASN1_F_D2I_AUTHORITY_KEYID);
}

void AUTHORITY_KEYID_free(AUTHORITY_KEYID *a)
{
	if (a == NULL) return;
	ASN1_OCTET_STRING_free(a->keyid);
	sk_GENERAL_NAME_pop_free(a->issuer, GENERAL_NAME_free);
	ASN1_INTEGER_free (a->serial);
	Free ((char *)a);
}

static STACK *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
	     AUTHORITY_KEYID *akeyid, STACK *extlist)
{
	char *tmp;
	if(akeyid->keyid) {
		tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
		X509V3_add_value("keyid", tmp, &extlist);
		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);
		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 *values)
{
char keyid=0, issuer=0;
int i;
CONF_VALUE *cnf;
ASN1_OCTET_STRING *ikeyid = NULL;
X509_NAME *isname = NULL;
STACK_OF(GENERAL_NAME) * gens = NULL;
GENERAL_NAME *gen = NULL;
ASN1_INTEGER *serial = NULL;
X509_EXTENSION *ext;
X509 *cert;
AUTHORITY_KEYID *akeyid;
for(i = 0; i < sk_num(values); i++) {
	cnf = (CONF_VALUE *)sk_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 = 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);
ASN1_INTEGER_free(serial);
ASN1_OCTET_STRING_free(ikeyid);
return NULL;

}
Commit	Line	Data
175b0942 DSH	1	/* v3_akey.c */
	2	/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
	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>
	62	#include <openssl/asn1.h>
	63	#include <openssl/asn1_mac.h>
	64	#include <openssl/x509v3.h>
175b0942	65
175b0942 DSH	66	static STACK i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD method, AUTHORITY_KEYID akeyid, STACK extlist);
	67	static AUTHORITY_KEYID v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD method, X509V3_CTX ctx, STACK values);
	68
175b0942	69	X509V3_EXT_METHOD v3_akey_id = {
785cdf20	70	NID_authority_key_identifier, X509V3_EXT_MULTILINE,
175b0942 DSH	71	(X509V3_EXT_NEW)AUTHORITY_KEYID_new,
	72	AUTHORITY_KEYID_free,
	73	(X509V3_EXT_D2I)d2i_AUTHORITY_KEYID,
	74	i2d_AUTHORITY_KEYID,
	75	NULL, NULL,
	76	(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
	77	(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
79a474e8	78	NULL,NULL,
175b0942 DSH	79	NULL
	80	};
	81
	82
6b691a5c	83	int i2d_AUTHORITY_KEYID(AUTHORITY_KEYID a, unsigned char *pp)
175b0942 DSH	84	{
	85	M_ASN1_I2D_vars(a);
	86
	87	M_ASN1_I2D_len_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING);
	88	M_ASN1_I2D_len_IMP_opt (a->issuer, i2d_GENERAL_NAMES);
	89	M_ASN1_I2D_len_IMP_opt (a->serial, i2d_ASN1_INTEGER);
	90
	91	M_ASN1_I2D_seq_total();
	92
	93	M_ASN1_I2D_put_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING, 0);
	94	M_ASN1_I2D_put_IMP_opt (a->issuer, i2d_GENERAL_NAMES, 1);
	95	M_ASN1_I2D_put_IMP_opt (a->serial, i2d_ASN1_INTEGER, 2);
	96
	97	M_ASN1_I2D_finish();
	98	}
	99
6b691a5c	100	AUTHORITY_KEYID *AUTHORITY_KEYID_new(void)
175b0942 DSH	101	{
	102	AUTHORITY_KEYID *ret=NULL;
	103	ASN1_CTX c;
	104	M_ASN1_New_Malloc(ret, AUTHORITY_KEYID);
	105	ret->keyid = NULL;
	106	ret->issuer = NULL;
	107	ret->serial = NULL;
	108	return (ret);
	109	M_ASN1_New_Error(ASN1_F_AUTHORITY_KEYID_NEW);
	110	}
	111
6b691a5c UM	112	AUTHORITY_KEYID d2i_AUTHORITY_KEYID(AUTHORITY_KEYID a, unsigned char *pp,
6b691a5c UM	113	long length)
175b0942 DSH	114	{
	115	M_ASN1_D2I_vars(a,AUTHORITY_KEYID *,AUTHORITY_KEYID_new);
	116	M_ASN1_D2I_Init();
	117	M_ASN1_D2I_start_sequence();
	118	M_ASN1_D2I_get_IMP_opt (ret->keyid, d2i_ASN1_OCTET_STRING, 0,
	119	V_ASN1_OCTET_STRING);
	120	M_ASN1_D2I_get_IMP_opt (ret->issuer, d2i_GENERAL_NAMES, 1,
	121	V_ASN1_SEQUENCE);
	122	M_ASN1_D2I_get_IMP_opt (ret->serial, d2i_ASN1_INTEGER, 2,
	123	V_ASN1_INTEGER);
	124	M_ASN1_D2I_Finish(a, AUTHORITY_KEYID_free, ASN1_F_D2I_AUTHORITY_KEYID);
	125	}
	126
6b691a5c	127	void AUTHORITY_KEYID_free(AUTHORITY_KEYID *a)
175b0942 DSH	128	{
	129	if (a == NULL) return;
	130	ASN1_OCTET_STRING_free(a->keyid);
f5fedc04	131	sk_GENERAL_NAME_pop_free(a->issuer, GENERAL_NAME_free);
175b0942 DSH	132	ASN1_INTEGER_free (a->serial);
	133	Free ((char *)a);
	134	}
	135
6b691a5c UM	136	static STACK i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD method,
6b691a5c UM	137	AUTHORITY_KEYID akeyid, STACK extlist)
175b0942 DSH	138	{
	139	char *tmp;
	140	if(akeyid->keyid) {
	141	tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
	142	X509V3_add_value("keyid", tmp, &extlist);
	143	Free(tmp);
	144	}
	145	if(akeyid->issuer)
	146	extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
	147	if(akeyid->serial) {
	148	tmp = hex_to_string(akeyid->serial->data,
	149	akeyid->serial->length);
	150	X509V3_add_value("serial", tmp, &extlist);
	151	Free(tmp);
	152	}
	153	return extlist;
	154	}
	155
0be9747b DSH	156	/* Currently two options:
	157	* keyid: use the issuers subject keyid, the value 'always' means its is
	158	* an error if the issuer certificate doesn't have a key id.
	159	* issuer: use the issuers cert issuer and serial number. The default is
	160	* to only use this if keyid is not present. With the option 'always'
	161	* this is always included.
	162	*/
	163
6b691a5c UM	164	static AUTHORITY_KEYID v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD method,
6b691a5c UM	165	X509V3_CTX ctx, STACK values)
175b0942	166	{
0be9747b DSH	167	char keyid=0, issuer=0;
	168	int i;
	169	CONF_VALUE *cnf;
	170	ASN1_OCTET_STRING *ikeyid = NULL;
	171	X509_NAME *isname = NULL;
f5fedc04	172	STACK_OF(GENERAL_NAME) * gens = NULL;
0be9747b DSH	173	GENERAL_NAME *gen = NULL;
	174	ASN1_INTEGER *serial = NULL;
	175	X509_EXTENSION *ext;
	176	X509 *cert;
	177	AUTHORITY_KEYID *akeyid;
	178	for(i = 0; i < sk_num(values); i++) {
	179	cnf = (CONF_VALUE *)sk_value(values, i);
	180	if(!strcmp(cnf->name, "keyid")) {
	181	keyid = 1;
	182	if(cnf->value && !strcmp(cnf->value, "always")) keyid = 2;
	183	} else if(!strcmp(cnf->name, "issuer")) {
	184	issuer = 1;
	185	if(cnf->value && !strcmp(cnf->value, "always")) issuer = 2;
	186	} else {
	187	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
	188	ERR_add_error_data(2, "name=", cnf->name);
	189	return NULL;
	190	}
	191	}
	192
	193
	194
	195	if(!ctx \|\| !ctx->issuer_cert) {
	196	if(ctx && (ctx->flags==CTX_TEST)) return AUTHORITY_KEYID_new();
	197	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
	198	return NULL;
	199	}
	200
	201	cert = ctx->issuer_cert;
	202
	203	if(keyid) {
	204	i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
	205	if((i >= 0) && (ext = X509_get_ext(cert, i)))
f5fedc04	206	ikeyid = X509V3_EXT_d2i(ext);
0be9747b DSH	207	if(keyid==2 && !ikeyid) {
	208	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
	209	return NULL;
	210	}
	211	}
	212
	213	if((issuer && !ikeyid) \|\| (issuer == 2)) {
	214	isname = X509_NAME_dup(X509_get_issuer_name(cert));
	215	serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert));
	216	if(!isname \|\| !serial) {
	217	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
	218	goto err;
	219	}
	220	}
	221
	222	if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
	223
	224	if(isname) {
f5fedc04 DSH	225	if(!(gens = sk_GENERAL_NAME_new(NULL)) \|\| !(gen = GENERAL_NAME_new())
f5fedc04 DSH	226	\|\| !sk_GENERAL_NAME_push(gens, gen)) {
0be9747b DSH	227	X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
	228	goto err;
	229	}
	230	gen->type = GEN_DIRNAME;
	231	gen->d.dirn = isname;
	232	}
	233
	234	akeyid->issuer = gens;
	235	akeyid->serial = serial;
	236	akeyid->keyid = ikeyid;
	237
	238	return akeyid;
	239
	240	err:
	241	X509_NAME_free(isname);
	242	ASN1_INTEGER_free(serial);
	243	ASN1_OCTET_STRING_free(ikeyid);
175b0942	244	return NULL;
0be9747b	245
175b0942 DSH	246	}
175b0942 DSH	247