[thirdparty/openssl.git] / crypto / x509v3 / v3_alt.c

/* v3_alt.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 "conf.h"
#include "x509v3.h"

#ifndef NOPROTO
static STACK *v2i_subject_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *nval);
static STACK *v2i_issuer_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *nval);
static int copy_email(X509V3_CTX *ctx, STACK *gens);
static int copy_issuer(X509V3_CTX *ctx, STACK *gens);
#else
static STACK *v2i_issuer_alt();
static STACK *v2i_subject_alt();
static int copy_email();
static int copy_issuer();
#endif

X509V3_EXT_METHOD v3_alt[] = {
{ NID_subject_alt_name, 0,
(X509V3_EXT_NEW)GENERAL_NAMES_new,
GENERAL_NAMES_free,
(X509V3_EXT_D2I)d2i_GENERAL_NAMES,
i2d_GENERAL_NAMES,
NULL, NULL,
(X509V3_EXT_I2V)i2v_GENERAL_NAMES,
(X509V3_EXT_V2I)v2i_subject_alt,
NULL, NULL, NULL},
{ NID_issuer_alt_name, 0,
(X509V3_EXT_NEW)GENERAL_NAMES_new,
GENERAL_NAMES_free,
(X509V3_EXT_D2I)d2i_GENERAL_NAMES,
i2d_GENERAL_NAMES,
NULL, NULL,
(X509V3_EXT_I2V)i2v_GENERAL_NAMES,
(X509V3_EXT_V2I)v2i_issuer_alt,
NULL, NULL, NULL},
EXT_END
};

STACK *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method, STACK *gens, STACK *ret)
{
	int i;
	GENERAL_NAME *gen;
	for(i = 0; i < sk_num(gens); i++) {
		gen = (GENERAL_NAME *)sk_value(gens, i);
		ret = i2v_GENERAL_NAME(method, gen, ret);
	}
	return ret;
}

STACK *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method, GENERAL_NAME *gen,
	     STACK *ret)
{
	char oline[256];
	unsigned char *p;
	switch (gen->type)
	{
		case GEN_OTHERNAME:
		X509V3_add_value("othername","<unsupported>", &ret);
		break;

		case GEN_X400:
		X509V3_add_value("X400Name","<unsupported>", &ret);
		break;

		case GEN_EDIPARTY:
		X509V3_add_value("EdiPartyName","<unsupported>", &ret);
		break;

		case GEN_EMAIL:
		X509V3_add_value("email",gen->d.ia5->data, &ret);
		break;

		case GEN_DNS:
		X509V3_add_value("DNS",gen->d.ia5->data, &ret);
		break;

		case GEN_URI:
		X509V3_add_value("URI",gen->d.ia5->data, &ret);
		break;

		case GEN_DIRNAME:
		X509_NAME_oneline(gen->d.dirn, oline, 256);
		X509V3_add_value("DirName",oline, &ret);
		break;

		case GEN_IPADD:
		p = gen->d.ip->data;
		/* BUG: doesn't support IPV6 */
		if(gen->d.ip->length != 4) {
			X509V3_add_value("IP Address","<invalid>", &ret);
			break;
		}
		sprintf(oline, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
		X509V3_add_value("IP Address",oline, &ret);
		break;

		case GEN_RID:
		i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
		X509V3_add_value("Registered ID",oline, &ret);
		break;
	}
	return ret;
}

static STACK *v2i_issuer_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
	     STACK *nval)
{
	STACK *gens = NULL;
	CONF_VALUE *cnf;
	int i;
	if(!(gens = sk_new(NULL))) {
		X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	for(i = 0; i < sk_num(nval); i++) {
		cnf = (CONF_VALUE *)sk_value(nval, i);
		if(!name_cmp(cnf->name, "issuer") && cnf->value &&
						!strcmp(cnf->value, "copy")) {
			if(!copy_issuer(ctx, gens)) goto err;
		} else {
			GENERAL_NAME *gen;
			if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
								 goto err; 
			sk_push(gens, (char *)gen);
		}
	}
	return gens;
	err:
	sk_pop_free(gens, GENERAL_NAME_free);
	return NULL;
}

/* Append subject altname of issuer to issuer alt name of subject */

static int copy_issuer(X509V3_CTX *ctx, STACK *gens)
{
	STACK *ialt;
	char *gen;
	X509_EXTENSION *ext;
	int i;
	if(ctx && (ctx->flags == CTX_TEST)) return 1;
	if(!ctx || !ctx->issuer_cert) {
		X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_NO_ISSUER_DETAILS);
		goto err;
	}
        i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
	if(i < 0) return 1;
        if(!(ext = X509_get_ext(ctx->issuer_cert, i)) ||
                        !(ialt = (STACK *) X509V3_EXT_d2i(ext)) ) {
		X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_ISSUER_DECODE_ERROR);
		goto err;
	}

	for(i = 0; i < sk_num(ialt); i++) {
		gen = sk_value(ialt, i);
		if(!sk_push(gens, gen)) {
			X509V3err(X509V3_F_COPY_ISSUER,ERR_R_MALLOC_FAILURE);
			goto err;
		}
	}
	sk_free(ialt);

	return 1;
		
	err:
	return 0;
	
}

static STACK *v2i_subject_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
	     STACK *nval)
{
	STACK *gens = NULL;
	CONF_VALUE *cnf;
	int i;
	if(!(gens = sk_new(NULL))) {
		X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	for(i = 0; i < sk_num(nval); i++) {
		cnf = (CONF_VALUE *)sk_value(nval, i);
		if(!name_cmp(cnf->name, "email") && cnf->value &&
						!strcmp(cnf->value, "copy")) {
			if(!copy_email(ctx, gens)) goto err;
		} else {
			GENERAL_NAME *gen;
			if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
								 goto err; 
			sk_push(gens, (char *)gen);
		}
	}
	return gens;
	err:
	sk_pop_free(gens, GENERAL_NAME_free);
	return NULL;
}

/* Copy any email addresses in a certificate or request to 
 * GENERAL_NAMES
 */

static int copy_email(X509V3_CTX *ctx, STACK *gens)
{
	X509_NAME *nm;
	ASN1_IA5STRING *email = NULL;
	X509_NAME_ENTRY *ne;
	GENERAL_NAME *gen = NULL;
	int i;
	if(ctx->flags == CTX_TEST) return 1;
	if(!ctx || (!ctx->subject_cert && !ctx->subject_req)) {
		X509V3err(X509V3_F_COPY_EMAIL,X509V3_R_NO_SUBJECT_DETAILS);
		goto err;
	}
	/* Find the subject name */
	if(ctx->subject_cert) nm = X509_get_subject_name(ctx->subject_cert);
	else nm = X509_REQ_get_subject_name(ctx->subject_req);

	/* Now add any email address(es) to STACK */
	i = -1;
	while((i = X509_NAME_get_index_by_NID(nm,
					 NID_pkcs9_emailAddress, i)) > 0) {
		ne = X509_NAME_get_entry(nm, i);
		email = ASN1_IA5STRING_dup(X509_NAME_ENTRY_get_data(ne));
		if(!email || !(gen = GENERAL_NAME_new())) {
			X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
			goto err;
		}
		gen->d.ia5 = email;
		email = NULL;
		gen->type = GEN_EMAIL;
		if(!sk_push(gens, (char *)gen)) {
			X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
			goto err;
		}
		gen = NULL;
	}

	
	return 1;
		
	err:
	GENERAL_NAME_free(gen);
	ASN1_IA5STRING_free(email);
	return 0;
	
}

STACK *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
	     STACK *nval)
{
	GENERAL_NAME *gen;
	STACK *gens = NULL;
	CONF_VALUE *cnf;
	int i;
	if(!(gens = sk_new(NULL))) {
		X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	for(i = 0; i < sk_num(nval); i++) {
		cnf = (CONF_VALUE *)sk_value(nval, i);
		if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) goto err; 
		sk_push(gens, (char *)gen);
	}
	return gens;
	err:
	sk_pop_free(gens, GENERAL_NAME_free);
	return NULL;
}

GENERAL_NAME *v2i_GENERAL_NAME(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
	     CONF_VALUE *cnf)
{
char is_string = 0;
int type;
GENERAL_NAME *gen = NULL;

char *name, *value;

name = cnf->name;
value = cnf->value;

if(!value) {
	X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_MISSING_VALUE);
	return NULL;
}

if(!(gen = GENERAL_NAME_new())) {
	X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
	return NULL;
}

if(!name_cmp(name, "email")) {
	is_string = 1;
	type = GEN_EMAIL;
} else if(!name_cmp(name, "URI")) {
	is_string = 1;
	type = GEN_URI;
} else if(!name_cmp(name, "DNS")) {
	is_string = 1;
	type = GEN_DNS;
} else if(!name_cmp(name, "RID")) {
	ASN1_OBJECT *obj;
	if(!(obj = OBJ_txt2obj(value,0))) {
		X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_OBJECT);
		ERR_add_error_data(2, "value=", value);
		goto err;
	}
	gen->d.rid = obj;
	type = GEN_RID;
} else if(!name_cmp(name, "IP")) {
	int i1,i2,i3,i4;
	unsigned char ip[4];
	if((sscanf(value, "%d.%d.%d.%d",&i1,&i2,&i3,&i4) != 4) ||
	    (i1 < 0) || (i1 > 255) || (i2 < 0) || (i2 > 255) ||
	    (i3 < 0) || (i3 > 255) || (i4 < 0) || (i4 > 255) ) {
		X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_IP_ADDRESS);
		ERR_add_error_data(2, "value=", value);
		goto err;
	}
	ip[0] = i1; ip[1] = i2 ; ip[2] = i3 ; ip[3] = i4;
	if(!(gen->d.ip = ASN1_OCTET_STRING_new()) ||
		!ASN1_STRING_set(gen->d.ip, ip, 4)) {
			X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
			goto err;
	}
	type = GEN_IPADD;
} else {
	X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_UNSUPPORTED_OPTION);
	ERR_add_error_data(2, "name=", name);
	goto err;
}

if(is_string) {
	if(!(gen->d.ia5 = ASN1_IA5STRING_new()) ||
		      !ASN1_STRING_set(gen->d.ia5, value, strlen(value))) {
		X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
		goto err;
	}
}

gen->type = type;

return gen;

err:
GENERAL_NAME_free(gen);
return NULL;
}
Commit	Line	Data
643aaa19	1	/* v3_alt.c */
142fcca8 DSH	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 DSH	60	#include "cryptlib.h"
e527ba09 DSH	61	#include "conf.h"
142fcca8 DSH	62	#include "x509v3.h"
142fcca8 DSH	63
aa066b9e	64	#ifndef NOPROTO
e527ba09 DSH	65	static STACK v2i_subject_alt(X509V3_EXT_METHOD method, X509V3_CTX ctx, STACK nval);
e527ba09 DSH	66	static STACK v2i_issuer_alt(X509V3_EXT_METHOD method, X509V3_CTX ctx, STACK nval);
aa066b9e DSH	67	static int copy_email(X509V3_CTX ctx, STACK gens);
	68	static int copy_issuer(X509V3_CTX ctx, STACK gens);
	69	#else
e527ba09 DSH	70	static STACK *v2i_issuer_alt();
e527ba09 DSH	71	static STACK *v2i_subject_alt();
aa066b9e DSH	72	static int copy_email();
	73	static int copy_issuer();
	74	#endif
	75
142fcca8 DSH	76	X509V3_EXT_METHOD v3_alt[] = {
	77	{ NID_subject_alt_name, 0,
	78	(X509V3_EXT_NEW)GENERAL_NAMES_new,
	79	GENERAL_NAMES_free,
	80	(X509V3_EXT_D2I)d2i_GENERAL_NAMES,
	81	i2d_GENERAL_NAMES,
	82	NULL, NULL,
	83	(X509V3_EXT_I2V)i2v_GENERAL_NAMES,
aa066b9e	84	(X509V3_EXT_V2I)v2i_subject_alt,
79a474e8	85	NULL, NULL, NULL},
142fcca8 DSH	86	{ NID_issuer_alt_name, 0,
	87	(X509V3_EXT_NEW)GENERAL_NAMES_new,
	88	GENERAL_NAMES_free,
	89	(X509V3_EXT_D2I)d2i_GENERAL_NAMES,
	90	i2d_GENERAL_NAMES,
	91	NULL, NULL,
	92	(X509V3_EXT_I2V)i2v_GENERAL_NAMES,
aa066b9e	93	(X509V3_EXT_V2I)v2i_issuer_alt,
79a474e8	94	NULL, NULL, NULL},
142fcca8 DSH	95	EXT_END
	96	};
	97
6b691a5c	98	STACK i2v_GENERAL_NAMES(X509V3_EXT_METHOD method, STACK gens, STACK ret)
142fcca8 DSH	99	{
142fcca8 DSH	100	int i;
142fcca8 DSH	101	GENERAL_NAME *gen;
	102	for(i = 0; i < sk_num(gens); i++) {
	103	gen = (GENERAL_NAME *)sk_value(gens, i);
d08d8da4 DSH	104	ret = i2v_GENERAL_NAME(method, gen, ret);
	105	}
	106	return ret;
	107	}
	108
6b691a5c UM	109	STACK i2v_GENERAL_NAME(X509V3_EXT_METHOD method, GENERAL_NAME *gen,
6b691a5c UM	110	STACK *ret)
d08d8da4 DSH	111	{
	112	char oline[256];
	113	unsigned char *p;
	114	switch (gen->type)
	115	{
	116	case GEN_OTHERNAME:
142fcca8 DSH	117	X509V3_add_value("othername","<unsupported>", &ret);
	118	break;
	119
d08d8da4	120	case GEN_X400:
142fcca8 DSH	121	X509V3_add_value("X400Name","<unsupported>", &ret);
	122	break;
	123
d08d8da4	124	case GEN_EDIPARTY:
142fcca8	125	X509V3_add_value("EdiPartyName","<unsupported>", &ret);
d08d8da4	126	break;
142fcca8	127
d08d8da4	128	case GEN_EMAIL:
142fcca8 DSH	129	X509V3_add_value("email",gen->d.ia5->data, &ret);
	130	break;
	131
d08d8da4	132	case GEN_DNS:
142fcca8 DSH	133	X509V3_add_value("DNS",gen->d.ia5->data, &ret);
	134	break;
	135
d08d8da4	136	case GEN_URI:
142fcca8	137	X509V3_add_value("URI",gen->d.ia5->data, &ret);
d08d8da4	138	break;
142fcca8	139
d08d8da4	140	case GEN_DIRNAME:
175b0942 DSH	141	X509_NAME_oneline(gen->d.dirn, oline, 256);
175b0942 DSH	142	X509V3_add_value("DirName",oline, &ret);
d08d8da4	143	break;
142fcca8	144
d08d8da4 DSH	145	case GEN_IPADD:
	146	p = gen->d.ip->data;
	147	/* BUG: doesn't support IPV6 */
	148	if(gen->d.ip->length != 4) {
	149	X509V3_add_value("IP Address","<invalid>", &ret);
	150	break;
142fcca8	151	}
d08d8da4 DSH	152	sprintf(oline, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
	153	X509V3_add_value("IP Address",oline, &ret);
	154	break;
	155
	156	case GEN_RID:
	157	i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
	158	X509V3_add_value("Registered ID",oline, &ret);
	159	break;
142fcca8 DSH	160	}
	161	return ret;
	162	}
	163
6b691a5c UM	164	static STACK v2i_issuer_alt(X509V3_EXT_METHOD method, X509V3_CTX *ctx,
6b691a5c UM	165	STACK *nval)
aa066b9e DSH	166	{
	167	STACK *gens = NULL;
	168	CONF_VALUE *cnf;
	169	int i;
	170	if(!(gens = sk_new(NULL))) {
	171	X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
	172	return NULL;
	173	}
	174	for(i = 0; i < sk_num(nval); i++) {
	175	cnf = (CONF_VALUE *)sk_value(nval, i);
	176	if(!name_cmp(cnf->name, "issuer") && cnf->value &&
	177	!strcmp(cnf->value, "copy")) {
	178	if(!copy_issuer(ctx, gens)) goto err;
	179	} else {
	180	GENERAL_NAME *gen;
	181	if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
	182	goto err;
	183	sk_push(gens, (char *)gen);
	184	}
	185	}
	186	return gens;
	187	err:
	188	sk_pop_free(gens, GENERAL_NAME_free);
	189	return NULL;
	190	}
	191
	192	/* Append subject altname of issuer to issuer alt name of subject */
	193
6b691a5c	194	static int copy_issuer(X509V3_CTX ctx, STACK gens)
aa066b9e DSH	195	{
	196	STACK *ialt;
	197	char *gen;
	198	X509_EXTENSION *ext;
	199	int i;
	200	if(ctx && (ctx->flags == CTX_TEST)) return 1;
	201	if(!ctx \|\| !ctx->issuer_cert) {
	202	X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_NO_ISSUER_DETAILS);
	203	goto err;
	204	}
	205	i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
	206	if(i < 0) return 1;
	207	if(!(ext = X509_get_ext(ctx->issuer_cert, i)) \|\|
	208	!(ialt = (STACK *) X509V3_EXT_d2i(ext)) ) {
	209	X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_ISSUER_DECODE_ERROR);
	210	goto err;
	211	}
	212
	213	for(i = 0; i < sk_num(ialt); i++) {
	214	gen = sk_value(ialt, i);
	215	if(!sk_push(gens, gen)) {
	216	X509V3err(X509V3_F_COPY_ISSUER,ERR_R_MALLOC_FAILURE);
	217	goto err;
	218	}
	219	}
	220	sk_free(ialt);
	221
	222	return 1;
	223
	224	err:
	225	return 0;
	226
	227	}
	228
6b691a5c UM	229	static STACK v2i_subject_alt(X509V3_EXT_METHOD method, X509V3_CTX *ctx,
6b691a5c UM	230	STACK *nval)
aa066b9e DSH	231	{
	232	STACK *gens = NULL;
	233	CONF_VALUE *cnf;
	234	int i;
	235	if(!(gens = sk_new(NULL))) {
	236	X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
	237	return NULL;
	238	}
	239	for(i = 0; i < sk_num(nval); i++) {
	240	cnf = (CONF_VALUE *)sk_value(nval, i);
	241	if(!name_cmp(cnf->name, "email") && cnf->value &&
	242	!strcmp(cnf->value, "copy")) {
	243	if(!copy_email(ctx, gens)) goto err;
	244	} else {
	245	GENERAL_NAME *gen;
	246	if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
	247	goto err;
	248	sk_push(gens, (char *)gen);
	249	}
	250	}
	251	return gens;
	252	err:
	253	sk_pop_free(gens, GENERAL_NAME_free);
	254	return NULL;
	255	}
	256
	257	/* Copy any email addresses in a certificate or request to
	258	* GENERAL_NAMES
	259	*/
	260
6b691a5c	261	static int copy_email(X509V3_CTX ctx, STACK gens)
aa066b9e DSH	262	{
	263	X509_NAME *nm;
	264	ASN1_IA5STRING *email = NULL;
	265	X509_NAME_ENTRY *ne;
	266	GENERAL_NAME *gen = NULL;
	267	int i;
	268	if(ctx->flags == CTX_TEST) return 1;
	269	if(!ctx \|\| (!ctx->subject_cert && !ctx->subject_req)) {
	270	X509V3err(X509V3_F_COPY_EMAIL,X509V3_R_NO_SUBJECT_DETAILS);
	271	goto err;
	272	}
	273	/* Find the subject name */
	274	if(ctx->subject_cert) nm = X509_get_subject_name(ctx->subject_cert);
	275	else nm = X509_REQ_get_subject_name(ctx->subject_req);
	276
	277	/* Now add any email address(es) to STACK */
	278	i = -1;
	279	while((i = X509_NAME_get_index_by_NID(nm,
	280	NID_pkcs9_emailAddress, i)) > 0) {
	281	ne = X509_NAME_get_entry(nm, i);
	282	email = ASN1_IA5STRING_dup(X509_NAME_ENTRY_get_data(ne));
	283	if(!email \|\| !(gen = GENERAL_NAME_new())) {
	284	X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
	285	goto err;
	286	}
	287	gen->d.ia5 = email;
	288	email = NULL;
	289	gen->type = GEN_EMAIL;
	290	if(!sk_push(gens, (char *)gen)) {
	291	X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
	292	goto err;
	293	}
	294	gen = NULL;
	295	}
	296
	297
	298	return 1;
	299
	300	err:
	301	GENERAL_NAME_free(gen);
	302	ASN1_IA5STRING_free(email);
	303	return 0;
	304
	305	}
	306
6b691a5c UM	307	STACK v2i_GENERAL_NAMES(X509V3_EXT_METHOD method, X509V3_CTX *ctx,
6b691a5c UM	308	STACK *nval)
d08d8da4 DSH	309	{
	310	GENERAL_NAME *gen;
	311	STACK *gens = NULL;
	312	CONF_VALUE *cnf;
	313	int i;
	314	if(!(gens = sk_new(NULL))) {
	315	X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
	316	return NULL;
	317	}
	318	for(i = 0; i < sk_num(nval); i++) {
	319	cnf = (CONF_VALUE *)sk_value(nval, i);
	320	if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) goto err;
	321	sk_push(gens, (char *)gen);
	322	}
	323	return gens;
	324	err:
	325	sk_pop_free(gens, GENERAL_NAME_free);
	326	return NULL;
	327	}
	328
6b691a5c UM	329	GENERAL_NAME v2i_GENERAL_NAME(X509V3_EXT_METHOD method, X509V3_CTX *ctx,
6b691a5c UM	330	CONF_VALUE *cnf)
d08d8da4 DSH	331	{
	332	char is_string = 0;
	333	int type;
	334	GENERAL_NAME *gen = NULL;
	335
	336	char name, value;
	337
	338	name = cnf->name;
	339	value = cnf->value;
	340
aa066b9e DSH	341	if(!value) {
	342	X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_MISSING_VALUE);
	343	return NULL;
	344	}
	345
d08d8da4 DSH	346	if(!(gen = GENERAL_NAME_new())) {
	347	X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
	348	return NULL;
	349	}
	350
	351	if(!name_cmp(name, "email")) {
	352	is_string = 1;
	353	type = GEN_EMAIL;
	354	} else if(!name_cmp(name, "URI")) {
	355	is_string = 1;
	356	type = GEN_URI;
	357	} else if(!name_cmp(name, "DNS")) {
	358	is_string = 1;
	359	type = GEN_DNS;
	360	} else if(!name_cmp(name, "RID")) {
	361	ASN1_OBJECT *obj;
	362	if(!(obj = OBJ_txt2obj(value,0))) {
	363	X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_OBJECT);
	364	ERR_add_error_data(2, "value=", value);
	365	goto err;
	366	}
	367	gen->d.rid = obj;
	368	type = GEN_RID;
	369	} else if(!name_cmp(name, "IP")) {
	370	int i1,i2,i3,i4;
	371	unsigned char ip[4];
	372	if((sscanf(value, "%d.%d.%d.%d",&i1,&i2,&i3,&i4) != 4) \|\|
	373	(i1 < 0) \|\| (i1 > 255) \|\| (i2 < 0) \|\| (i2 > 255) \|\|
	374	(i3 < 0) \|\| (i3 > 255) \|\| (i4 < 0) \|\| (i4 > 255) ) {
	375	X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_IP_ADDRESS);
	376	ERR_add_error_data(2, "value=", value);
	377	goto err;
	378	}
	379	ip[0] = i1; ip[1] = i2 ; ip[2] = i3 ; ip[3] = i4;
	380	if(!(gen->d.ip = ASN1_OCTET_STRING_new()) \|\|
	381	!ASN1_STRING_set(gen->d.ip, ip, 4)) {
	382	X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
	383	goto err;
	384	}
	385	type = GEN_IPADD;
	386	} else {
	387	X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_UNSUPPORTED_OPTION);
	388	ERR_add_error_data(2, "name=", name);
	389	goto err;
	390	}
	391
	392	if(is_string) {
	393	if(!(gen->d.ia5 = ASN1_IA5STRING_new()) \|\|
	394	!ASN1_STRING_set(gen->d.ia5, value, strlen(value))) {
	395	X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
	396	goto err;
	397	}
	398	}
	399
	400	gen->type = type;
	401
	402	return gen;
	403
	404	err:
	405	GENERAL_NAME_free(gen);
	406	return NULL;
	407	}