[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);
#else
static int v3_check_critical();
static int v3_check_generic();
static X509_EXTENSION *do_ext_conf();
static X509V3_EXTENSION *v3_generic_extension();
#endif

X509_EXTENSION *X509V3_EXT_conf(conf, ctx, name, value)
LHASH *conf;	/* Config file */
X509V3_CTX *ctx;
char *name;	/* Name */
char *value;	/* 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;
}

X509_EXTENSION *X509V3_EXT_conf_nid(conf, ctx, ext_nid, value)
LHASH *conf;	/* Config file */
X509V3_CTX *ctx;
int ext_nid;
char *value;	/* 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);
}

static X509_EXTENSION *do_ext_conf(conf, ctx, ext_nid, crit, value)
LHASH *conf;	/* Config file */
X509V3_CTX *ctx;
int ext_nid;
int crit;
char *value;	/* 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(value)
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(value)
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(ext, value, crit, type)
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(conf, ctx, section, cert)
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(conf, ctx, section, crl)
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(ctx, name, section)
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(ctx, 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(ctx, str)
X509V3_CTX *ctx;
char *str;
{
	if(!str) return;
	if(ctx->db_meth->free_string)
			return ctx->db_meth->free_string(ctx->db, str);
}

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

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

static STACK *conf_lhash_get_section(db, 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(ctx, lhash)
X509V3_CTX *ctx;
LHASH *lhash;
{
	ctx->db_meth = &conf_lhash_method;
	ctx->db = lhash;
}

void X509V3_set_ctx(ctx, issuer, subj, req, crl, flags)
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);
388ff0b0 DSH	74	#else
	75	static int v3_check_critical();
	76	static int v3_check_generic();
	77	static X509_EXTENSION *do_ext_conf();
	78	static X509V3_EXTENSION *v3_generic_extension();
	79	#endif
	80
9aeaf1b4 DSH	81	X509_EXTENSION *X509V3_EXT_conf(conf, ctx, name, value)
	82	LHASH conf; / Config file */
	83	X509V3_CTX *ctx;
	84	char name; / Name */
	85	char value; / Value */
	86	{
388ff0b0 DSH	87	int crit;
388ff0b0 DSH	88	int ext_type;
aa066b9e	89	X509_EXTENSION *ret;
388ff0b0 DSH	90	crit = v3_check_critical(&value);
	91	if((ext_type = v3_check_generic(&value)))
	92	return v3_generic_extension(name, value, crit, ext_type);
aa066b9e DSH	93	ret = do_ext_conf(conf, ctx, OBJ_sn2nid(name), crit, value);
	94	if(!ret) {
	95	X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_ERROR_IN_EXTENSION);
	96	ERR_add_error_data(4,"name=", name, ", value=", value);
	97	}
	98	return ret;
9aeaf1b4 DSH	99	}
9aeaf1b4 DSH	100
9aeaf1b4 DSH	101	X509_EXTENSION *X509V3_EXT_conf_nid(conf, ctx, ext_nid, value)
	102	LHASH conf; / Config file */
	103	X509V3_CTX *ctx;
	104	int ext_nid;
	105	char value; / Value */
388ff0b0 DSH	106	{
	107	int crit;
	108	int ext_type;
	109	crit = v3_check_critical(&value);
	110	if((ext_type = v3_check_generic(&value)))
	111	return v3_generic_extension(OBJ_nid2sn(ext_nid),
	112	value, crit, ext_type);
	113	return do_ext_conf(conf, ctx, ext_nid, crit, value);
	114	}
	115
	116	static X509_EXTENSION *do_ext_conf(conf, ctx, ext_nid, crit, value)
	117	LHASH conf; / Config file */
	118	X509V3_CTX *ctx;
	119	int ext_nid;
	120	int crit;
	121	char value; / Value */
9aeaf1b4 DSH	122	{
	123	X509_EXTENSION *ext = NULL;
	124	X509V3_EXT_METHOD *method;
	125	STACK *nval;
	126	char *ext_struc;
	127	char ext_der, p;
	128	int ext_len;
9aeaf1b4	129	ASN1_OCTET_STRING *ext_oct;
aa066b9e DSH	130	if(ext_nid == NID_undef) {
	131	X509V3err(X509V3_F_DO_EXT_CONF,X509V3_R_UNKNOWN_EXTENSION_NAME);
	132	return NULL;
	133	}
9aeaf1b4	134	if(!(method = X509V3_EXT_get_nid(ext_nid))) {
aa066b9e	135	X509V3err(X509V3_F_DO_EXT_CONF,X509V3_R_UNKNOWN_EXTENSION);
9aeaf1b4 DSH	136	return NULL;
9aeaf1b4 DSH	137	}
9aeaf1b4 DSH	138	/* Now get internal extension representation based on type */
	139	if(method->v2i) {
	140	if(*value == '@') nval = CONF_get_section(conf, value + 1);
	141	else nval = X509V3_parse_list(value);
	142	if(!nval) {
	143	X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_INVALID_EXTENSION_STRING);
	144	ERR_add_error_data(4, "name=", OBJ_nid2sn(ext_nid), ",section=", value);
	145	return NULL;
	146	}
	147	ext_struc = method->v2i(method, ctx, nval);
	148	if(*value != '@') sk_pop_free(nval, X509V3_conf_free);
	149	if(!ext_struc) return NULL;
	150	} else if(method->s2i) {
	151	if(!(ext_struc = method->s2i(method, ctx, value))) return NULL;
41b731f2 DSH	152	} else if(method->r2i) {
	153	if(!ctx->db) {
	154	X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_NO_CONFIG_DATABASE);
	155	return NULL;
	156	}
	157	if(!(ext_struc = method->r2i(method, ctx, value))) return NULL;
9aeaf1b4 DSH	158	} else {
	159	X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_EXTENSION_SETTING_NOT_SUPPORTED);
	160	ERR_add_error_data(2, "name=", OBJ_nid2sn(ext_nid));
	161	return NULL;
	162	}
	163
	164	/* We've now got the internal representation: convert to DER */
	165	ext_len = method->i2d(ext_struc, NULL);
	166	ext_der = Malloc(ext_len);
	167	p = ext_der;
	168	method->i2d(ext_struc, &p);
	169	method->ext_free(ext_struc);
	170	ext_oct = ASN1_OCTET_STRING_new();
	171	ext_oct->data = ext_der;
	172	ext_oct->length = ext_len;
	173
	174	ext = X509_EXTENSION_create_by_NID(NULL, ext_nid, crit, ext_oct);
	175	ASN1_OCTET_STRING_free(ext_oct);
	176
	177	return ext;
	178
	179	}
	180
388ff0b0 DSH	181	/* Check the extension string for critical flag */
	182	static int v3_check_critical(value)
	183	char **value;
	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 */
	194	static int v3_check_generic(value)
	195	char **value;
	196	{
	197	char p = value;
	198	if((strlen(p) < 4) \|\| strncmp(p, "RAW:,", 4)) return 0;
	199	p+=4;
	200	while(isspace(*p)) p++;
	201	*value = p;
	202	return 1;
	203	}
	204
	205	/* Create a generic extension: for now just handle RAW type */
	206	static X509_EXTENSION *v3_generic_extension(ext, value, crit, type)
e778802f	207	const char *ext;
388ff0b0 DSH	208	char *value;
	209	int crit;
	210	int type;
	211	{
	212	unsigned char *ext_der=NULL;
	213	long ext_len;
	214	ASN1_OBJECT *obj=NULL;
	215	ASN1_OCTET_STRING *oct=NULL;
	216	X509_EXTENSION *extension=NULL;
	217	if(!(obj = OBJ_txt2obj(ext, 0))) {
	218	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,X509V3_R_EXTENSION_NAME_ERROR);
	219	ERR_add_error_data(2, "name=", ext);
	220	goto err;
	221	}
	222
	223	if(!(ext_der = string_to_hex(value, &ext_len))) {
	224	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,X509V3_R_EXTENSION_VALUE_ERROR);
	225	ERR_add_error_data(2, "value=", value);
	226	goto err;
	227	}
	228
	229	if(!(oct = ASN1_OCTET_STRING_new())) {
	230	X509V3err(X509V3_F_V3_GENERIC_EXTENSION,ERR_R_MALLOC_FAILURE);
	231	goto err;
	232	}
	233
	234	oct->data = ext_der;
	235	oct->length = ext_len;
	236	ext_der = NULL;
	237
	238	extension = X509_EXTENSION_create_by_OBJ(NULL, obj, crit, oct);
	239
	240	err:
	241	ASN1_OBJECT_free(obj);
	242	ASN1_OCTET_STRING_free(oct);
	243	if(ext_der) Free(ext_der);
	244	return extension;
	245	}
	246
	247
9aeaf1b4 DSH	248	/* This is the main function: add a bunch of extensions based on a config file
	249	* section
	250	*/
	251
	252	int X509V3_EXT_add_conf(conf, ctx, section, cert)
	253	LHASH *conf;
	254	X509V3_CTX *ctx;
	255	char *section;
	256	X509 *cert;
	257	{
	258	X509_EXTENSION *ext;
	259	STACK *nval;
	260	CONF_VALUE *val;
	261	int i;
	262	if(!(nval = CONF_get_section(conf, section))) return 0;
	263	for(i = 0; i < sk_num(nval); i++) {
	264	val = (CONF_VALUE *)sk_value(nval, i);
	265	if(!(ext = X509V3_EXT_conf(conf, ctx, val->name, val->value)))
	266	return 0;
	267	if(cert) X509_add_ext(cert, ext, -1);
	268	X509_EXTENSION_free(ext);
	269	}
	270	return 1;
	271	}
	272
1756d405 DSH	273	/* Same as above but for a CRL */
	274
	275	int X509V3_EXT_CRL_add_conf(conf, ctx, section, crl)
	276	LHASH *conf;
	277	X509V3_CTX *ctx;
	278	char *section;
	279	X509_CRL *crl;
	280	{
	281	X509_EXTENSION *ext;
	282	STACK *nval;
	283	CONF_VALUE *val;
	284	int i;
	285	if(!(nval = CONF_get_section(conf, section))) return 0;
	286	for(i = 0; i < sk_num(nval); i++) {
	287	val = (CONF_VALUE *)sk_value(nval, i);
	288	if(!(ext = X509V3_EXT_conf(conf, ctx, val->name, val->value)))
	289	return 0;
	290	if(crl) X509_CRL_add_ext(crl, ext, -1);
	291	X509_EXTENSION_free(ext);
	292	}
	293	return 1;
	294	}
	295
1d48dd00 DSH	296	/* Config database functions */
	297
	298	char * X509V3_get_string(ctx, name, section)
	299	X509V3_CTX *ctx;
	300	char *name;
	301	char *section;
	302	{
	303	if(ctx->db_meth->get_string)
	304	return ctx->db_meth->get_string(ctx->db, name, section);
	305	return NULL;
	306	}
	307
	308	STACK * X509V3_get_section(ctx, section)
	309	X509V3_CTX *ctx;
	310	char *section;
	311	{
	312	if(ctx->db_meth->get_section)
	313	return ctx->db_meth->get_section(ctx->db, section);
	314	return NULL;
	315	}
	316
41b731f2	317	void X509V3_string_free(ctx, str)
1d48dd00 DSH	318	X509V3_CTX *ctx;
	319	char *str;
	320	{
41b731f2	321	if(!str) return;
1d48dd00 DSH	322	if(ctx->db_meth->free_string)
	323	return ctx->db_meth->free_string(ctx->db, str);
	324	}
	325
41b731f2	326	void X509V3_section_free(ctx, section)
1d48dd00 DSH	327	X509V3_CTX *ctx;
	328	STACK *section;
	329	{
41b731f2	330	if(!section) return;
1d48dd00 DSH	331	if(ctx->db_meth->free_section)
	332	return ctx->db_meth->free_section(ctx->db, section);
	333	}
	334
	335	static char *conf_lhash_get_string(db, section, value)
	336	void *db;
	337	char *section;
	338	char *value;
	339	{
	340	return CONF_get_string(db, section, value);
	341	}
	342
	343	static STACK *conf_lhash_get_section(db, section)
	344	void *db;
	345	char *section;
	346	{
	347	return CONF_get_section(db, section);
	348	}
	349
	350	static X509V3_CONF_METHOD conf_lhash_method = {
	351	conf_lhash_get_string,
	352	conf_lhash_get_section,
	353	NULL,
	354	NULL
	355	};
	356
	357	void X509V3_set_conf_lhash(ctx, lhash)
	358	X509V3_CTX *ctx;
	359	LHASH *lhash;
	360	{
	361	ctx->db_meth = &conf_lhash_method;
	362	ctx->db = lhash;
	363	}
	364
	365	void X509V3_set_ctx(ctx, issuer, subj, req, crl, flags)
	366	X509V3_CTX *ctx;
	367	X509 *issuer;
	368	X509 *subj;
	369	X509_REQ *req;
	370	X509_CRL *crl;
	371	int flags;
	372	{
	373	ctx->issuer_cert = issuer;
	374	ctx->subject_cert = subj;
	375	ctx->crl = crl;
	376	ctx->subject_req = req;
	377	ctx->flags = flags;
	378	}