[thirdparty/openssl.git] / crypto / x509v3 / v3_conf.c

/* v3_conf.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).
 *
 */
/* extension creation utilities */


#include <stdio.h>
#include <ctype.h>
#include "cryptlib.h"
#include "conf.h"
#include "x509.h"
#include "x509v3.h"

#ifndef NOPROTO
static int v3_check_critical(char **value);
static int v3_check_generic(char **value);
static X509_EXTENSION *do_ext_conf(LHASH *conf, X509V3_CTX *ctx, int ext_nid, int crit, char *value);
static X509_EXTENSION *v3_generic_extension(const char *ext, char *value, int crit, int type);
static char *conf_lhash_get_string(void *db, char *section, char *value);
static STACK *conf_lhash_get_section(void *db, char *section);
#else
static int v3_check_critical();
static int v3_check_generic();
static X509_EXTENSION *do_ext_conf();
static X509V3_EXTENSION *v3_generic_extension();
static char *conf_lhash_get_string();
static STACK *conf_lhash_get_section();
#endif

/* LHASH *conf:  Config file    */
/* char *name:  Name    */
/* char *value:  Value    */
X509_EXTENSION *X509V3_EXT_conf(LHASH *conf, X509V3_CTX *ctx, char *name,
	     char *value)
{
	int crit;
	int ext_type;
	X509_EXTENSION *ret;
	crit = v3_check_critical(&value);
	if((ext_type = v3_check_generic(&value))) 
		return v3_generic_extension(name, value, crit, ext_type);
	ret = do_ext_conf(conf, ctx, OBJ_sn2nid(name), crit, value);
	if(!ret) {
		X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_ERROR_IN_EXTENSION);
		ERR_add_error_data(4,"name=", name, ", value=", value);
	}
	return ret;
}

/* LHASH *conf:  Config file    */
/* char *value:  Value    */
X509_EXTENSION *X509V3_EXT_conf_nid(LHASH *conf, X509V3_CTX *ctx, int ext_nid,
	     char *value)
{
	int crit;
	int ext_type;
	crit = v3_check_critical(&value);
	if((ext_type = v3_check_generic(&value))) 
		return v3_generic_extension(OBJ_nid2sn(ext_nid),
							 value, crit, ext_type);
	return do_ext_conf(conf, ctx, ext_nid, crit, value);
}

/* LHASH *conf:  Config file    */
/* char *value:  Value    */
static X509_EXTENSION *do_ext_conf(LHASH *conf, X509V3_CTX *ctx, int ext_nid,
	     int crit, char *value)
{
	X509_EXTENSION *ext = NULL;
	X509V3_EXT_METHOD *method;
	STACK *nval;
	char *ext_struc;
	char *ext_der, *p;
	int ext_len;
	ASN1_OCTET_STRING *ext_oct;
	if(ext_nid == NID_undef) {
		X509V3err(X509V3_F_DO_EXT_CONF,X509V3_R_UNKNOWN_EXTENSION_NAME);
		return NULL;
	}
	if(!(method = X509V3_EXT_get_nid(ext_nid))) {
		X509V3err(X509V3_F_DO_EXT_CONF,X509V3_R_UNKNOWN_EXTENSION);
		return NULL;
	}
	/* Now get internal extension representation based on type */
	if(method->v2i) {
		if(*value == '@') nval = CONF_get_section(conf, value + 1);
		else nval = X509V3_parse_list(value);
		if(!nval) {
			X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_INVALID_EXTENSION_STRING);
			ERR_add_error_data(4, "name=", OBJ_nid2sn(ext_nid), ",section=", value);
			return NULL;
		}
		ext_struc = method->v2i(method, ctx, nval);
		if(*value != '@') sk_pop_free(nval, X509V3_conf_free);
		if(!ext_struc) return NULL;
	} else if(method->s2i) {
		if(!(ext_struc = method->s2i(method, ctx, value))) return NULL;
	} else if(method->r2i) {
		if(!ctx->db) {
			X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_NO_CONFIG_DATABASE);
			return NULL;
		}
		if(!(ext_struc = method->r2i(method, ctx, value))) return NULL;
	} else {
		X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_EXTENSION_SETTING_NOT_SUPPORTED);
		ERR_add_error_data(2, "name=", OBJ_nid2sn(ext_nid));
		return NULL;
	}

	/* We've now got the internal representation: convert to DER */
	ext_len = method->i2d(ext_struc, NULL);
	ext_der = Malloc(ext_len);
	p = ext_der;
	method->i2d(ext_struc, &p);
	method->ext_free(ext_struc);
	ext_oct = ASN1_OCTET_STRING_new();
	ext_oct->data = ext_der;
	ext_oct->length = ext_len;
	
	ext = X509_EXTENSION_create_by_NID(NULL, ext_nid, crit, ext_oct);
	ASN1_OCTET_STRING_free(ext_oct);

	return ext;

}

/* Check the extension string for critical flag */
static int v3_check_critical(char **value)
{
	char *p = *value;
	if((strlen(p) < 9) || strncmp(p, "critical,", 9)) return 0;
	p+=9;
	while(isspace(*p)) p++;
	*value = p;
	return 1;
}

/* Check extension string for generic extension and return the type */
static int v3_check_generic(char **value)
{
	char *p = *value;
	if((strlen(p) < 4) || strncmp(p, "RAW:,", 4)) return 0;
	p+=4;
	while(isspace(*p)) p++;
	*value = p;
	return 1;
}

/* Create a generic extension: for now just handle RAW type */
static X509_EXTENSION *v3_generic_extension(const char *ext, char *value,
	     int crit, int type)
{
unsigned char *ext_der=NULL;
long ext_len;
ASN1_OBJECT *obj=NULL;
ASN1_OCTET_STRING *oct=NULL;
X509_EXTENSION *extension=NULL;
if(!(obj = OBJ_txt2obj(ext, 0))) {
	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,X509V3_R_EXTENSION_NAME_ERROR);
	ERR_add_error_data(2, "name=", ext);
	goto err;
}

if(!(ext_der = string_to_hex(value, &ext_len))) {
	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,X509V3_R_EXTENSION_VALUE_ERROR);
	ERR_add_error_data(2, "value=", value);
	goto err;
}

if(!(oct = ASN1_OCTET_STRING_new())) {
	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,ERR_R_MALLOC_FAILURE);
	goto err;
}

oct->data = ext_der;
oct->length = ext_len;
ext_der = NULL;

extension = X509_EXTENSION_create_by_OBJ(NULL, obj, crit, oct);

err:
ASN1_OBJECT_free(obj);
ASN1_OCTET_STRING_free(oct);
if(ext_der) Free(ext_der);
return extension;
}


/* This is the main function: add a bunch of extensions based on a config file
 * section
 */

int X509V3_EXT_add_conf(LHASH *conf, X509V3_CTX *ctx, char *section,
	     X509 *cert)
{
	X509_EXTENSION *ext;
	STACK *nval;
	CONF_VALUE *val;	
	int i;
	if(!(nval = CONF_get_section(conf, section))) return 0;
	for(i = 0; i < sk_num(nval); i++) {
		val = (CONF_VALUE *)sk_value(nval, i);
		if(!(ext = X509V3_EXT_conf(conf, ctx, val->name, val->value)))
								return 0;
		if(cert) X509_add_ext(cert, ext, -1);
		X509_EXTENSION_free(ext);
	}
	return 1;
}

/* Same as above but for a CRL */

int X509V3_EXT_CRL_add_conf(LHASH *conf, X509V3_CTX *ctx, char *section,
	     X509_CRL *crl)
{
	X509_EXTENSION *ext;
	STACK *nval;
	CONF_VALUE *val;	
	int i;
	if(!(nval = CONF_get_section(conf, section))) return 0;
	for(i = 0; i < sk_num(nval); i++) {
		val = (CONF_VALUE *)sk_value(nval, i);
		if(!(ext = X509V3_EXT_conf(conf, ctx, val->name, val->value)))
								return 0;
		if(crl) X509_CRL_add_ext(crl, ext, -1);
		X509_EXTENSION_free(ext);
	}
	return 1;
}

/* Config database functions */

char * X509V3_get_string(X509V3_CTX *ctx, char *name, char *section)
{
	if(ctx->db_meth->get_string)
			return ctx->db_meth->get_string(ctx->db, name, section);
	return NULL;
}

STACK * X509V3_get_section(X509V3_CTX *ctx, char *section)
{
	if(ctx->db_meth->get_section)
			return ctx->db_meth->get_section(ctx->db, section);
	return NULL;
}

void X509V3_string_free(X509V3_CTX *ctx, char *str)
{
	if(!str) return;
	if(ctx->db_meth->free_string)
			ctx->db_meth->free_string(ctx->db, str);
}

void X509V3_section_free(X509V3_CTX *ctx, STACK *section)
{
	if(!section) return;
	if(ctx->db_meth->free_section)
			ctx->db_meth->free_section(ctx->db, section);
}

static char *conf_lhash_get_string(void *db, char *section, char *value)
{
	return CONF_get_string(db, section, value);
}

static STACK *conf_lhash_get_section(void *db, char *section)
{
	return CONF_get_section(db, section);
}

static X509V3_CONF_METHOD conf_lhash_method = {
conf_lhash_get_string,
conf_lhash_get_section,
NULL,
NULL
};

void X509V3_set_conf_lhash(X509V3_CTX *ctx, LHASH *lhash)
{
	ctx->db_meth = &conf_lhash_method;
	ctx->db = lhash;
}

void X509V3_set_ctx(X509V3_CTX *ctx, X509 *issuer, X509 *subj, X509_REQ *req,
	     X509_CRL *crl, int flags)
{
	ctx->issuer_cert = issuer;
	ctx->subject_cert = subj;
	ctx->crl = crl;
	ctx->subject_req = req;
	ctx->flags = flags;
}
Commit	Line	Data
9aeaf1b4 DSH	1	/* v3_conf.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	*/
388ff0b0	58	/* extension creation utilities */
9aeaf1b4	59
e527ba09 DSH	60
	61
	62	#include <stdio.h>
9aeaf1b4	63	#include <ctype.h>
e527ba09 DSH	64	#include "cryptlib.h"
	65	#include "conf.h"
	66	#include "x509.h"
9aeaf1b4 DSH	67	#include "x509v3.h"
9aeaf1b4 DSH	68
388ff0b0 DSH	69	#ifndef NOPROTO
	70	static int v3_check_critical(char **value);
	71	static int v3_check_generic(char **value);
	72	static X509_EXTENSION do_ext_conf(LHASH conf, X509V3_CTX ctx, int ext_nid, int crit, char value);
e778802f	73	static X509_EXTENSION v3_generic_extension(const char ext, char *value, int crit, int type);
f5fedc04 DSH	74	static char conf_lhash_get_string(void db, char section, char value);
f5fedc04 DSH	75	static STACK conf_lhash_get_section(void db, char *section);
388ff0b0 DSH	76	#else
	77	static int v3_check_critical();
	78	static int v3_check_generic();
	79	static X509_EXTENSION *do_ext_conf();
	80	static X509V3_EXTENSION *v3_generic_extension();
f5fedc04 DSH	81	static char *conf_lhash_get_string();
f5fedc04 DSH	82	static STACK *conf_lhash_get_section();
388ff0b0 DSH	83	#endif
388ff0b0 DSH	84
6b691a5c UM	85	/* LHASH conf: Config file /
	86	/* char name: Name /
	87	/* char value: Value /
	88	X509_EXTENSION X509V3_EXT_conf(LHASH conf, X509V3_CTX ctx, char name,
	89	char *value)
9aeaf1b4	90	{
388ff0b0 DSH	91	int crit;
388ff0b0 DSH	92	int ext_type;
aa066b9e	93	X509_EXTENSION *ret;
388ff0b0 DSH	94	crit = v3_check_critical(&value);
	95	if((ext_type = v3_check_generic(&value)))
	96	return v3_generic_extension(name, value, crit, ext_type);
aa066b9e DSH	97	ret = do_ext_conf(conf, ctx, OBJ_sn2nid(name), crit, value);
	98	if(!ret) {
	99	X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_ERROR_IN_EXTENSION);
	100	ERR_add_error_data(4,"name=", name, ", value=", value);
	101	}
	102	return ret;
9aeaf1b4 DSH	103	}
9aeaf1b4 DSH	104
6b691a5c UM	105	/* LHASH conf: Config file /
	106	/* char value: Value /
	107	X509_EXTENSION X509V3_EXT_conf_nid(LHASH conf, X509V3_CTX *ctx, int ext_nid,
	108	char *value)
388ff0b0 DSH	109	{
	110	int crit;
	111	int ext_type;
	112	crit = v3_check_critical(&value);
	113	if((ext_type = v3_check_generic(&value)))
	114	return v3_generic_extension(OBJ_nid2sn(ext_nid),
	115	value, crit, ext_type);
	116	return do_ext_conf(conf, ctx, ext_nid, crit, value);
	117	}
	118
6b691a5c UM	119	/* LHASH conf: Config file /
	120	/* char value: Value /
	121	static X509_EXTENSION do_ext_conf(LHASH conf, X509V3_CTX *ctx, int ext_nid,
	122	int crit, char *value)
9aeaf1b4 DSH	123	{
	124	X509_EXTENSION *ext = NULL;
	125	X509V3_EXT_METHOD *method;
	126	STACK *nval;
	127	char *ext_struc;
	128	char ext_der, p;
	129	int ext_len;
9aeaf1b4	130	ASN1_OCTET_STRING *ext_oct;
aa066b9e DSH	131	if(ext_nid == NID_undef) {
	132	X509V3err(X509V3_F_DO_EXT_CONF,X509V3_R_UNKNOWN_EXTENSION_NAME);
	133	return NULL;
	134	}
9aeaf1b4	135	if(!(method = X509V3_EXT_get_nid(ext_nid))) {
aa066b9e	136	X509V3err(X509V3_F_DO_EXT_CONF,X509V3_R_UNKNOWN_EXTENSION);
9aeaf1b4 DSH	137	return NULL;
9aeaf1b4 DSH	138	}
9aeaf1b4 DSH	139	/* Now get internal extension representation based on type */
	140	if(method->v2i) {
	141	if(*value == '@') nval = CONF_get_section(conf, value + 1);
	142	else nval = X509V3_parse_list(value);
	143	if(!nval) {
	144	X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_INVALID_EXTENSION_STRING);
	145	ERR_add_error_data(4, "name=", OBJ_nid2sn(ext_nid), ",section=", value);
	146	return NULL;
	147	}
	148	ext_struc = method->v2i(method, ctx, nval);
	149	if(*value != '@') sk_pop_free(nval, X509V3_conf_free);
	150	if(!ext_struc) return NULL;
	151	} else if(method->s2i) {
	152	if(!(ext_struc = method->s2i(method, ctx, value))) return NULL;
41b731f2 DSH	153	} else if(method->r2i) {
	154	if(!ctx->db) {
	155	X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_NO_CONFIG_DATABASE);
	156	return NULL;
	157	}
	158	if(!(ext_struc = method->r2i(method, ctx, value))) return NULL;
9aeaf1b4 DSH	159	} else {
	160	X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_EXTENSION_SETTING_NOT_SUPPORTED);
	161	ERR_add_error_data(2, "name=", OBJ_nid2sn(ext_nid));
	162	return NULL;
	163	}
	164
	165	/* We've now got the internal representation: convert to DER */
	166	ext_len = method->i2d(ext_struc, NULL);
	167	ext_der = Malloc(ext_len);
	168	p = ext_der;
	169	method->i2d(ext_struc, &p);
	170	method->ext_free(ext_struc);
	171	ext_oct = ASN1_OCTET_STRING_new();
	172	ext_oct->data = ext_der;
	173	ext_oct->length = ext_len;
	174
	175	ext = X509_EXTENSION_create_by_NID(NULL, ext_nid, crit, ext_oct);
	176	ASN1_OCTET_STRING_free(ext_oct);
	177
	178	return ext;
	179
	180	}
	181
388ff0b0	182	/* Check the extension string for critical flag */
6b691a5c	183	static int v3_check_critical(char **value)
388ff0b0 DSH	184	{
	185	char p = value;
	186	if((strlen(p) < 9) \|\| strncmp(p, "critical,", 9)) return 0;
	187	p+=9;
	188	while(isspace(*p)) p++;
	189	*value = p;
	190	return 1;
	191	}
	192
	193	/* Check extension string for generic extension and return the type */
6b691a5c	194	static int v3_check_generic(char **value)
388ff0b0 DSH	195	{
	196	char p = value;
	197	if((strlen(p) < 4) \|\| strncmp(p, "RAW:,", 4)) return 0;
	198	p+=4;
	199	while(isspace(*p)) p++;
	200	*value = p;
	201	return 1;
	202	}
	203
	204	/* Create a generic extension: for now just handle RAW type */
6b691a5c UM	205	static X509_EXTENSION v3_generic_extension(const char ext, char *value,
6b691a5c UM	206	int crit, int type)
388ff0b0 DSH	207	{
	208	unsigned char *ext_der=NULL;
	209	long ext_len;
	210	ASN1_OBJECT *obj=NULL;
	211	ASN1_OCTET_STRING *oct=NULL;
	212	X509_EXTENSION *extension=NULL;
	213	if(!(obj = OBJ_txt2obj(ext, 0))) {
	214	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,X509V3_R_EXTENSION_NAME_ERROR);
	215	ERR_add_error_data(2, "name=", ext);
	216	goto err;
	217	}
	218
	219	if(!(ext_der = string_to_hex(value, &ext_len))) {
	220	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,X509V3_R_EXTENSION_VALUE_ERROR);
	221	ERR_add_error_data(2, "value=", value);
	222	goto err;
	223	}
	224
	225	if(!(oct = ASN1_OCTET_STRING_new())) {
	226	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,ERR_R_MALLOC_FAILURE);
	227	goto err;
	228	}
	229
	230	oct->data = ext_der;
	231	oct->length = ext_len;
	232	ext_der = NULL;
	233
	234	extension = X509_EXTENSION_create_by_OBJ(NULL, obj, crit, oct);
	235
	236	err:
	237	ASN1_OBJECT_free(obj);
	238	ASN1_OCTET_STRING_free(oct);
	239	if(ext_der) Free(ext_der);
	240	return extension;
	241	}
	242
	243
9aeaf1b4 DSH	244	/* This is the main function: add a bunch of extensions based on a config file
	245	* section
	246	*/
	247
6b691a5c UM	248	int X509V3_EXT_add_conf(LHASH conf, X509V3_CTX ctx, char *section,
6b691a5c UM	249	X509 *cert)
9aeaf1b4 DSH	250	{
	251	X509_EXTENSION *ext;
	252	STACK *nval;
	253	CONF_VALUE *val;
	254	int i;
	255	if(!(nval = CONF_get_section(conf, section))) return 0;
	256	for(i = 0; i < sk_num(nval); i++) {
	257	val = (CONF_VALUE *)sk_value(nval, i);
	258	if(!(ext = X509V3_EXT_conf(conf, ctx, val->name, val->value)))
	259	return 0;
	260	if(cert) X509_add_ext(cert, ext, -1);
	261	X509_EXTENSION_free(ext);
	262	}
	263	return 1;
	264	}
	265
1756d405 DSH	266	/* Same as above but for a CRL */
1756d405 DSH	267
6b691a5c UM	268	int X509V3_EXT_CRL_add_conf(LHASH conf, X509V3_CTX ctx, char *section,
6b691a5c UM	269	X509_CRL *crl)
1756d405 DSH	270	{
	271	X509_EXTENSION *ext;
	272	STACK *nval;
	273	CONF_VALUE *val;
	274	int i;
	275	if(!(nval = CONF_get_section(conf, section))) return 0;
	276	for(i = 0; i < sk_num(nval); i++) {
	277	val = (CONF_VALUE *)sk_value(nval, i);
	278	if(!(ext = X509V3_EXT_conf(conf, ctx, val->name, val->value)))
	279	return 0;
	280	if(crl) X509_CRL_add_ext(crl, ext, -1);
	281	X509_EXTENSION_free(ext);
	282	}
	283	return 1;
	284	}
	285
1d48dd00 DSH	286	/* Config database functions */
1d48dd00 DSH	287
6b691a5c	288	char * X509V3_get_string(X509V3_CTX ctx, char name, char *section)
1d48dd00 DSH	289	{
	290	if(ctx->db_meth->get_string)
	291	return ctx->db_meth->get_string(ctx->db, name, section);
	292	return NULL;
	293	}
	294
6b691a5c	295	STACK * X509V3_get_section(X509V3_CTX ctx, char section)
1d48dd00 DSH	296	{
	297	if(ctx->db_meth->get_section)
	298	return ctx->db_meth->get_section(ctx->db, section);
	299	return NULL;
	300	}
	301
6b691a5c	302	void X509V3_string_free(X509V3_CTX ctx, char str)
1d48dd00	303	{
41b731f2	304	if(!str) return;
1d48dd00	305	if(ctx->db_meth->free_string)
f5fedc04	306	ctx->db_meth->free_string(ctx->db, str);
1d48dd00 DSH	307	}
1d48dd00 DSH	308
6b691a5c	309	void X509V3_section_free(X509V3_CTX ctx, STACK section)
1d48dd00	310	{
41b731f2	311	if(!section) return;
1d48dd00	312	if(ctx->db_meth->free_section)
f5fedc04	313	ctx->db_meth->free_section(ctx->db, section);
1d48dd00 DSH	314	}
1d48dd00 DSH	315
6b691a5c	316	static char conf_lhash_get_string(void db, char section, char value)
1d48dd00 DSH	317	{
	318	return CONF_get_string(db, section, value);
	319	}
	320
6b691a5c	321	static STACK conf_lhash_get_section(void db, char *section)
1d48dd00 DSH	322	{
	323	return CONF_get_section(db, section);
	324	}
	325
	326	static X509V3_CONF_METHOD conf_lhash_method = {
	327	conf_lhash_get_string,
	328	conf_lhash_get_section,
	329	NULL,
	330	NULL
	331	};
	332
6b691a5c	333	void X509V3_set_conf_lhash(X509V3_CTX ctx, LHASH lhash)
1d48dd00 DSH	334	{
	335	ctx->db_meth = &conf_lhash_method;
	336	ctx->db = lhash;
	337	}
	338
6b691a5c UM	339	void X509V3_set_ctx(X509V3_CTX ctx, X509 issuer, X509 subj, X509_REQ req,
6b691a5c UM	340	X509_CRL *crl, int flags)
1d48dd00 DSH	341	{
	342	ctx->issuer_cert = issuer;
	343	ctx->subject_cert = subj;
	344	ctx->crl = crl;
	345	ctx->subject_req = req;
	346	ctx->flags = flags;
	347	}