sl@0: /* v3_akey.c */
sl@0: /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
sl@0:  * project 1999.
sl@0:  */
sl@0: /* ====================================================================
sl@0:  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
sl@0:  *
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  *
sl@0:  * 1. Redistributions of source code must retain the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer. 
sl@0:  *
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in
sl@0:  *    the documentation and/or other materials provided with the
sl@0:  *    distribution.
sl@0:  *
sl@0:  * 3. All advertising materials mentioning features or use of this
sl@0:  *    software must display the following acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
sl@0:  *
sl@0:  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
sl@0:  *    endorse or promote products derived from this software without
sl@0:  *    prior written permission. For written permission, please contact
sl@0:  *    licensing@OpenSSL.org.
sl@0:  *
sl@0:  * 5. Products derived from this software may not be called "OpenSSL"
sl@0:  *    nor may "OpenSSL" appear in their names without prior written
sl@0:  *    permission of the OpenSSL Project.
sl@0:  *
sl@0:  * 6. Redistributions of any form whatsoever must retain the following
sl@0:  *    acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
sl@0:  *
sl@0:  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
sl@0:  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
sl@0:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
sl@0:  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
sl@0:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
sl@0:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
sl@0:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
sl@0:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
sl@0:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
sl@0:  * OF THE POSSIBILITY OF SUCH DAMAGE.
sl@0:  * ====================================================================
sl@0:  *
sl@0:  * This product includes cryptographic software written by Eric Young
sl@0:  * (eay@cryptsoft.com).  This product includes software written by Tim
sl@0:  * Hudson (tjh@cryptsoft.com).
sl@0:  *
sl@0:  */
sl@0:  
sl@0: /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0: 
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/conf.h>
sl@0: #include <openssl/asn1.h>
sl@0: #include <openssl/asn1t.h>
sl@0: #include <openssl/x509v3.h>
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libcrypto_wsd_macros.h"
sl@0: #include "libcrypto_wsd.h"
sl@0: #endif
sl@0: 
sl@0: 
sl@0: static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
sl@0: 			AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist);
sl@0: static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
sl@0: 			X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);
sl@0: #ifndef EMULATOR
sl@0: X509V3_EXT_METHOD v3_akey_id =
sl@0: 	{
sl@0: 	NID_authority_key_identifier,
sl@0: 	X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID),
sl@0: 	0,0,0,0,
sl@0: 	0,0,
sl@0: 	(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
sl@0: 	(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
sl@0: 	0,0,
sl@0: 	NULL
sl@0: 	};
sl@0: #else
sl@0: const X509V3_EXT_METHOD v3_akey_id =
sl@0: 	{
sl@0: 	NID_authority_key_identifier,
sl@0: 	X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID),
sl@0: 	0,0,0,0,
sl@0: 	0,0,
sl@0: 	(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
sl@0: 	(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
sl@0: 	0,0,
sl@0: 	NULL
sl@0: 	};
sl@0: 
sl@0: #endif
sl@0: static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
sl@0: 	     AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist)
sl@0: {
sl@0: 	char *tmp;
sl@0: 	if(akeyid->keyid) {
sl@0: 		tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
sl@0: 		X509V3_add_value("keyid", tmp, &extlist);
sl@0: 		OPENSSL_free(tmp);
sl@0: 	}
sl@0: 	if(akeyid->issuer) 
sl@0: 		extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
sl@0: 	if(akeyid->serial) {
sl@0: 		tmp = hex_to_string(akeyid->serial->data,
sl@0: 						 akeyid->serial->length);
sl@0: 		X509V3_add_value("serial", tmp, &extlist);
sl@0: 		OPENSSL_free(tmp);
sl@0: 	}
sl@0: 	return extlist;
sl@0: }
sl@0: 
sl@0: /* Currently two options:
sl@0:  * keyid: use the issuers subject keyid, the value 'always' means its is
sl@0:  * an error if the issuer certificate doesn't have a key id.
sl@0:  * issuer: use the issuers cert issuer and serial number. The default is
sl@0:  * to only use this if keyid is not present. With the option 'always'
sl@0:  * this is always included.
sl@0:  */
sl@0: 
sl@0: static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
sl@0: 	     X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values)
sl@0: 	{
sl@0: 	char keyid=0, issuer=0;
sl@0: 	int i;
sl@0: 	CONF_VALUE *cnf;
sl@0: 	ASN1_OCTET_STRING *ikeyid = NULL;
sl@0: 	X509_NAME *isname = NULL;
sl@0: 	GENERAL_NAMES * gens = NULL;
sl@0: 	GENERAL_NAME *gen = NULL;
sl@0: 	ASN1_INTEGER *serial = NULL;
sl@0: 	X509_EXTENSION *ext;
sl@0: 	X509 *cert;
sl@0: 	AUTHORITY_KEYID *akeyid;
sl@0: 
sl@0: 	for(i = 0; i < sk_CONF_VALUE_num(values); i++)
sl@0: 		{
sl@0: 		cnf = sk_CONF_VALUE_value(values, i);
sl@0: 		if(!strcmp(cnf->name, "keyid"))
sl@0: 			{
sl@0: 			keyid = 1;
sl@0: 			if(cnf->value && !strcmp(cnf->value, "always"))
sl@0: 				keyid = 2;
sl@0: 			}
sl@0: 		else if(!strcmp(cnf->name, "issuer"))
sl@0: 			{
sl@0: 			issuer = 1;
sl@0: 			if(cnf->value && !strcmp(cnf->value, "always"))
sl@0: 				issuer = 2;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
sl@0: 			ERR_add_error_data(2, "name=", cnf->name);
sl@0: 			return NULL;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if(!ctx || !ctx->issuer_cert)
sl@0: 		{
sl@0: 		if(ctx && (ctx->flags==CTX_TEST))
sl@0: 			return AUTHORITY_KEYID_new();
sl@0: 		X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
sl@0: 		return NULL;
sl@0: 		}
sl@0: 
sl@0: 	cert = ctx->issuer_cert;
sl@0: 
sl@0: 	if(keyid)
sl@0: 		{
sl@0: 		i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
sl@0: 		if((i >= 0)  && (ext = X509_get_ext(cert, i)))
sl@0: 			ikeyid = X509V3_EXT_d2i(ext);
sl@0: 		if(keyid==2 && !ikeyid)
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
sl@0: 			return NULL;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if((issuer && !ikeyid) || (issuer == 2))
sl@0: 		{
sl@0: 		isname = X509_NAME_dup(X509_get_issuer_name(cert));
sl@0: 		serial = M_ASN1_INTEGER_dup(X509_get_serialNumber(cert));
sl@0: 		if(!isname || !serial)
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
sl@0: 
sl@0: 	if(isname)
sl@0: 		{
sl@0: 		if(!(gens = sk_GENERAL_NAME_new_null())
sl@0: 			|| !(gen = GENERAL_NAME_new())
sl@0: 			|| !sk_GENERAL_NAME_push(gens, gen))
sl@0: 			{
sl@0: 			X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		gen->type = GEN_DIRNAME;
sl@0: 		gen->d.dirn = isname;
sl@0: 		}
sl@0: 
sl@0: 	akeyid->issuer = gens;
sl@0: 	akeyid->serial = serial;
sl@0: 	akeyid->keyid = ikeyid;
sl@0: 
sl@0: 	return akeyid;
sl@0: 
sl@0:  err:
sl@0: 	X509_NAME_free(isname);
sl@0: 	M_ASN1_INTEGER_free(serial);
sl@0: 	M_ASN1_OCTET_STRING_free(ikeyid);
sl@0: 	return NULL;
sl@0: 	}