early-access version 1255
This commit is contained in:
570
externals/libressl/crypto/x509/x509_conf.c
vendored
Executable file
570
externals/libressl/crypto/x509/x509_conf.c
vendored
Executable file
@@ -0,0 +1,570 @@
|
||||
/* $OpenBSD: x509_conf.c,v 1.1 2020/06/04 15:19:31 jsing Exp $ */
|
||||
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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||||
* project 1999.
|
||||
*/
|
||||
/* ====================================================================
|
||||
* Copyright (c) 1999-2002 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 */
|
||||
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#include <ctype.h>
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||||
#include <stdio.h>
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#include <string.h>
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#include <openssl/conf.h>
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#include <openssl/err.h>
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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static int v3_check_critical(const char **value);
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static int v3_check_generic(const char **value);
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||||
static X509_EXTENSION *do_ext_nconf(CONF *conf, X509V3_CTX *ctx, int ext_nid,
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int crit, const char *value);
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static X509_EXTENSION *v3_generic_extension(const char *ext, const char *value,
|
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int crit, int type, X509V3_CTX *ctx);
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static char *conf_lhash_get_string(void *db, const char *section,
|
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const char *value);
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static STACK_OF(CONF_VALUE) *conf_lhash_get_section(void *db,
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const char *section);
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static X509_EXTENSION *do_ext_i2d(const X509V3_EXT_METHOD *method, int ext_nid,
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int crit, void *ext_struc);
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static unsigned char *generic_asn1(const char *value, X509V3_CTX *ctx,
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long *ext_len);
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/* CONF *conf: Config file */
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/* char *name: Name */
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/* char *value: Value */
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X509_EXTENSION *
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X509V3_EXT_nconf(CONF *conf, X509V3_CTX *ctx, const char *name,
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const char *value)
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{
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int crit;
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int ext_type;
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X509_EXTENSION *ret;
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crit = v3_check_critical(&value);
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if ((ext_type = v3_check_generic(&value)))
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return v3_generic_extension(name, value, crit, ext_type, ctx);
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ret = do_ext_nconf(conf, ctx, OBJ_sn2nid(name), crit, value);
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if (!ret) {
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X509V3error(X509V3_R_ERROR_IN_EXTENSION);
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ERR_asprintf_error_data("name=%s, value=%s", name, value);
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}
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return ret;
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}
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/* CONF *conf: Config file */
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/* char *value: Value */
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X509_EXTENSION *
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X509V3_EXT_nconf_nid(CONF *conf, X509V3_CTX *ctx, int ext_nid,
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const char *value)
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{
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int crit;
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int ext_type;
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||||
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crit = v3_check_critical(&value);
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if ((ext_type = v3_check_generic(&value)))
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return v3_generic_extension(OBJ_nid2sn(ext_nid),
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value, crit, ext_type, ctx);
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return do_ext_nconf(conf, ctx, ext_nid, crit, value);
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}
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/* CONF *conf: Config file */
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/* char *value: Value */
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static X509_EXTENSION *
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do_ext_nconf(CONF *conf, X509V3_CTX *ctx, int ext_nid, int crit,
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const char *value)
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{
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const X509V3_EXT_METHOD *method;
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X509_EXTENSION *ext;
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void *ext_struc;
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if (ext_nid == NID_undef) {
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X509V3error(X509V3_R_UNKNOWN_EXTENSION_NAME);
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return NULL;
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}
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if (!(method = X509V3_EXT_get_nid(ext_nid))) {
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X509V3error(X509V3_R_UNKNOWN_EXTENSION);
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return NULL;
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}
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/* Now get internal extension representation based on type */
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if (method->v2i) {
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STACK_OF(CONF_VALUE) *nval;
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if (*value == '@')
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nval = NCONF_get_section(conf, value + 1);
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else
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nval = X509V3_parse_list(value);
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if (sk_CONF_VALUE_num(nval) <= 0) {
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X509V3error(X509V3_R_INVALID_EXTENSION_STRING);
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||||
ERR_asprintf_error_data("name=%s,section=%s",
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OBJ_nid2sn(ext_nid), value);
|
||||
if (*value != '@')
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||||
sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
|
||||
return NULL;
|
||||
}
|
||||
ext_struc = method->v2i(method, ctx, nval);
|
||||
if (*value != '@')
|
||||
sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
|
||||
} else if (method->s2i) {
|
||||
ext_struc = method->s2i(method, ctx, value);
|
||||
} else if (method->r2i) {
|
||||
if (!ctx->db || !ctx->db_meth) {
|
||||
X509V3error(X509V3_R_NO_CONFIG_DATABASE);
|
||||
return NULL;
|
||||
}
|
||||
ext_struc = method->r2i(method, ctx, value);
|
||||
} else {
|
||||
X509V3error(X509V3_R_EXTENSION_SETTING_NOT_SUPPORTED);
|
||||
ERR_asprintf_error_data("name=%s", OBJ_nid2sn(ext_nid));
|
||||
return NULL;
|
||||
}
|
||||
if (ext_struc == NULL)
|
||||
return NULL;
|
||||
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ext = do_ext_i2d(method, ext_nid, crit, ext_struc);
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||||
if (method->it)
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ASN1_item_free(ext_struc, method->it);
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else
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method->ext_free(ext_struc);
|
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return ext;
|
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}
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|
||||
static X509_EXTENSION *
|
||||
do_ext_i2d(const X509V3_EXT_METHOD *method, int ext_nid, int crit,
|
||||
void *ext_struc)
|
||||
{
|
||||
unsigned char *ext_der;
|
||||
int ext_len;
|
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ASN1_OCTET_STRING *ext_oct = NULL;
|
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X509_EXTENSION *ext;
|
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|
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/* Convert internal representation to DER */
|
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if (method->it) {
|
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ext_der = NULL;
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ext_len = ASN1_item_i2d(ext_struc, &ext_der,
|
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method->it);
|
||||
if (ext_len < 0)
|
||||
goto merr;
|
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} else {
|
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unsigned char *p;
|
||||
ext_len = method->i2d(ext_struc, NULL);
|
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if (!(ext_der = malloc(ext_len)))
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goto merr;
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p = ext_der;
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method->i2d(ext_struc, &p);
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}
|
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if (!(ext_oct = ASN1_OCTET_STRING_new()))
|
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goto merr;
|
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ext_oct->data = ext_der;
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ext_oct->length = ext_len;
|
||||
|
||||
ext = X509_EXTENSION_create_by_NID(NULL, ext_nid, crit, ext_oct);
|
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if (!ext)
|
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goto merr;
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ASN1_OCTET_STRING_free(ext_oct);
|
||||
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return ext;
|
||||
|
||||
merr:
|
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ASN1_OCTET_STRING_free(ext_oct);
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X509V3error(ERR_R_MALLOC_FAILURE);
|
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return NULL;
|
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|
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}
|
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|
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/* Given an internal structure, nid and critical flag create an extension */
|
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|
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X509_EXTENSION *
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||||
X509V3_EXT_i2d(int ext_nid, int crit, void *ext_struc)
|
||||
{
|
||||
const X509V3_EXT_METHOD *method;
|
||||
|
||||
if (!(method = X509V3_EXT_get_nid(ext_nid))) {
|
||||
X509V3error(X509V3_R_UNKNOWN_EXTENSION);
|
||||
return NULL;
|
||||
}
|
||||
return do_ext_i2d(method, ext_nid, crit, ext_struc);
|
||||
}
|
||||
|
||||
/* Check the extension string for critical flag */
|
||||
static int
|
||||
v3_check_critical(const char **value)
|
||||
{
|
||||
const char *p = *value;
|
||||
|
||||
if ((strlen(p) < 9) || strncmp(p, "critical,", 9))
|
||||
return 0;
|
||||
p += 9;
|
||||
while (isspace((unsigned char)*p)) p++;
|
||||
*value = p;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Check extension string for generic extension and return the type */
|
||||
static int
|
||||
v3_check_generic(const char **value)
|
||||
{
|
||||
int gen_type = 0;
|
||||
const char *p = *value;
|
||||
|
||||
if ((strlen(p) >= 4) && !strncmp(p, "DER:", 4)) {
|
||||
p += 4;
|
||||
gen_type = 1;
|
||||
} else if ((strlen(p) >= 5) && !strncmp(p, "ASN1:", 5)) {
|
||||
p += 5;
|
||||
gen_type = 2;
|
||||
} else
|
||||
return 0;
|
||||
|
||||
while (isspace((unsigned char)*p))
|
||||
p++;
|
||||
*value = p;
|
||||
return gen_type;
|
||||
}
|
||||
|
||||
/* Create a generic extension: for now just handle DER type */
|
||||
static X509_EXTENSION *
|
||||
v3_generic_extension(const char *ext, const char *value, int crit, int gen_type,
|
||||
X509V3_CTX *ctx)
|
||||
{
|
||||
unsigned char *ext_der = NULL;
|
||||
long ext_len = 0;
|
||||
ASN1_OBJECT *obj = NULL;
|
||||
ASN1_OCTET_STRING *oct = NULL;
|
||||
X509_EXTENSION *extension = NULL;
|
||||
|
||||
if (!(obj = OBJ_txt2obj(ext, 0))) {
|
||||
X509V3error(X509V3_R_EXTENSION_NAME_ERROR);
|
||||
ERR_asprintf_error_data("name=%s", ext);
|
||||
goto err;
|
||||
}
|
||||
|
||||
if (gen_type == 1)
|
||||
ext_der = string_to_hex(value, &ext_len);
|
||||
else if (gen_type == 2)
|
||||
ext_der = generic_asn1(value, ctx, &ext_len);
|
||||
else {
|
||||
ERR_asprintf_error_data("Unexpected generic extension type %d", gen_type);
|
||||
goto err;
|
||||
}
|
||||
|
||||
if (ext_der == NULL) {
|
||||
X509V3error(X509V3_R_EXTENSION_VALUE_ERROR);
|
||||
ERR_asprintf_error_data("value=%s", value);
|
||||
goto err;
|
||||
}
|
||||
|
||||
if (!(oct = ASN1_OCTET_STRING_new())) {
|
||||
X509V3error(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);
|
||||
free(ext_der);
|
||||
return extension;
|
||||
}
|
||||
|
||||
static unsigned char *
|
||||
generic_asn1(const char *value, X509V3_CTX *ctx, long *ext_len)
|
||||
{
|
||||
ASN1_TYPE *typ;
|
||||
unsigned char *ext_der = NULL;
|
||||
|
||||
typ = ASN1_generate_v3(value, ctx);
|
||||
if (typ == NULL)
|
||||
return NULL;
|
||||
*ext_len = i2d_ASN1_TYPE(typ, &ext_der);
|
||||
ASN1_TYPE_free(typ);
|
||||
return ext_der;
|
||||
}
|
||||
|
||||
/* This is the main function: add a bunch of extensions based on a config file
|
||||
* section to an extension STACK.
|
||||
*/
|
||||
|
||||
int
|
||||
X509V3_EXT_add_nconf_sk(CONF *conf, X509V3_CTX *ctx, const char *section,
|
||||
STACK_OF(X509_EXTENSION) **sk)
|
||||
{
|
||||
X509_EXTENSION *ext;
|
||||
STACK_OF(CONF_VALUE) *nval;
|
||||
CONF_VALUE *val;
|
||||
int i;
|
||||
|
||||
if (!(nval = NCONF_get_section(conf, section)))
|
||||
return 0;
|
||||
for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
|
||||
val = sk_CONF_VALUE_value(nval, i);
|
||||
if (!(ext = X509V3_EXT_nconf(conf, ctx, val->name, val->value)))
|
||||
return 0;
|
||||
if (sk)
|
||||
X509v3_add_ext(sk, ext, -1);
|
||||
X509_EXTENSION_free(ext);
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Convenience functions to add extensions to a certificate, CRL and request */
|
||||
|
||||
int
|
||||
X509V3_EXT_add_nconf(CONF *conf, X509V3_CTX *ctx, const char *section,
|
||||
X509 *cert)
|
||||
{
|
||||
STACK_OF(X509_EXTENSION) **sk = NULL;
|
||||
|
||||
if (cert)
|
||||
sk = &cert->cert_info->extensions;
|
||||
return X509V3_EXT_add_nconf_sk(conf, ctx, section, sk);
|
||||
}
|
||||
|
||||
/* Same as above but for a CRL */
|
||||
|
||||
int
|
||||
X509V3_EXT_CRL_add_nconf(CONF *conf, X509V3_CTX *ctx, const char *section,
|
||||
X509_CRL *crl)
|
||||
{
|
||||
STACK_OF(X509_EXTENSION) **sk = NULL;
|
||||
|
||||
if (crl)
|
||||
sk = &crl->crl->extensions;
|
||||
return X509V3_EXT_add_nconf_sk(conf, ctx, section, sk);
|
||||
}
|
||||
|
||||
/* Add extensions to certificate request */
|
||||
|
||||
int
|
||||
X509V3_EXT_REQ_add_nconf(CONF *conf, X509V3_CTX *ctx, const char *section,
|
||||
X509_REQ *req)
|
||||
{
|
||||
STACK_OF(X509_EXTENSION) *extlist = NULL, **sk = NULL;
|
||||
int i;
|
||||
|
||||
if (req)
|
||||
sk = &extlist;
|
||||
i = X509V3_EXT_add_nconf_sk(conf, ctx, section, sk);
|
||||
if (!i || !sk)
|
||||
return i;
|
||||
i = X509_REQ_add_extensions(req, extlist);
|
||||
sk_X509_EXTENSION_pop_free(extlist, X509_EXTENSION_free);
|
||||
return i;
|
||||
}
|
||||
|
||||
/* Config database functions */
|
||||
|
||||
char *
|
||||
X509V3_get_string(X509V3_CTX *ctx, const char *name, const char *section)
|
||||
{
|
||||
if (!ctx->db || !ctx->db_meth || !ctx->db_meth->get_string) {
|
||||
X509V3error(X509V3_R_OPERATION_NOT_DEFINED);
|
||||
return NULL;
|
||||
}
|
||||
return ctx->db_meth->get_string(ctx->db, name, section);
|
||||
}
|
||||
|
||||
STACK_OF(CONF_VALUE) *
|
||||
X509V3_get_section(X509V3_CTX *ctx, const char *section)
|
||||
{
|
||||
if (!ctx->db || !ctx->db_meth || !ctx->db_meth->get_section) {
|
||||
X509V3error(X509V3_R_OPERATION_NOT_DEFINED);
|
||||
return NULL;
|
||||
}
|
||||
return ctx->db_meth->get_section(ctx->db, section);
|
||||
}
|
||||
|
||||
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_OF(CONF_VALUE) *section)
|
||||
{
|
||||
if (!section)
|
||||
return;
|
||||
if (ctx->db_meth->free_section)
|
||||
ctx->db_meth->free_section(ctx->db, section);
|
||||
}
|
||||
|
||||
static char *
|
||||
nconf_get_string(void *db, const char *section, const char *value)
|
||||
{
|
||||
return NCONF_get_string(db, section, value);
|
||||
}
|
||||
|
||||
static STACK_OF(CONF_VALUE) *
|
||||
nconf_get_section(void *db, const char *section)
|
||||
{
|
||||
return NCONF_get_section(db, section);
|
||||
}
|
||||
|
||||
static X509V3_CONF_METHOD nconf_method = {
|
||||
nconf_get_string,
|
||||
nconf_get_section,
|
||||
NULL,
|
||||
NULL
|
||||
};
|
||||
|
||||
void
|
||||
X509V3_set_nconf(X509V3_CTX *ctx, CONF *conf)
|
||||
{
|
||||
ctx->db_meth = &nconf_method;
|
||||
ctx->db = conf;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
/* Old conf compatibility functions */
|
||||
|
||||
X509_EXTENSION *
|
||||
X509V3_EXT_conf(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx, const char *name,
|
||||
const char *value)
|
||||
{
|
||||
CONF ctmp;
|
||||
|
||||
CONF_set_nconf(&ctmp, conf);
|
||||
return X509V3_EXT_nconf(&ctmp, ctx, name, value);
|
||||
}
|
||||
|
||||
/* LHASH *conf: Config file */
|
||||
/* char *value: Value */
|
||||
X509_EXTENSION *
|
||||
X509V3_EXT_conf_nid(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx, int ext_nid,
|
||||
const char *value)
|
||||
{
|
||||
CONF ctmp;
|
||||
|
||||
CONF_set_nconf(&ctmp, conf);
|
||||
return X509V3_EXT_nconf_nid(&ctmp, ctx, ext_nid, value);
|
||||
}
|
||||
|
||||
static char *
|
||||
conf_lhash_get_string(void *db, const char *section, const char *value)
|
||||
{
|
||||
return CONF_get_string(db, section, value);
|
||||
}
|
||||
|
||||
static STACK_OF(CONF_VALUE) *
|
||||
conf_lhash_get_section(void *db, const 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_OF(CONF_VALUE) *lhash)
|
||||
{
|
||||
ctx->db_meth = &conf_lhash_method;
|
||||
ctx->db = lhash;
|
||||
}
|
||||
|
||||
int
|
||||
X509V3_EXT_add_conf(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx,
|
||||
const char *section, X509 *cert)
|
||||
{
|
||||
CONF ctmp;
|
||||
|
||||
CONF_set_nconf(&ctmp, conf);
|
||||
return X509V3_EXT_add_nconf(&ctmp, ctx, section, cert);
|
||||
}
|
||||
|
||||
/* Same as above but for a CRL */
|
||||
|
||||
int
|
||||
X509V3_EXT_CRL_add_conf(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx,
|
||||
const char *section, X509_CRL *crl)
|
||||
{
|
||||
CONF ctmp;
|
||||
|
||||
CONF_set_nconf(&ctmp, conf);
|
||||
return X509V3_EXT_CRL_add_nconf(&ctmp, ctx, section, crl);
|
||||
}
|
||||
|
||||
/* Add extensions to certificate request */
|
||||
|
||||
int
|
||||
X509V3_EXT_REQ_add_conf(LHASH_OF(CONF_VALUE) *conf, X509V3_CTX *ctx,
|
||||
const char *section, X509_REQ *req)
|
||||
{
|
||||
CONF ctmp;
|
||||
|
||||
CONF_set_nconf(&ctmp, conf);
|
||||
return X509V3_EXT_REQ_add_nconf(&ctmp, ctx, section, req);
|
||||
}
|
Reference in New Issue
Block a user