ref: 5ebb1a29d8250027e8b7f2287f3bfa3a6f3d13ac
dir: /sys/src/ape/lib/openssl/crypto/x509v3/v3_akey.c/
/* v3_akey.c */
/* Written by Dr Stephen N Henson ([email protected]) 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
* [email protected].
*
* 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
* ([email protected]). This product includes software written by Tim
* Hudson ([email protected]).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/conf.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/x509v3.h>
static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist);
static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);
const X509V3_EXT_METHOD v3_akey_id =
{
NID_authority_key_identifier,
X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID),
0,0,0,0,
0,0,
(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
0,0,
NULL
};
static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist)
{
char *tmp;
if(akeyid->keyid) {
tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
X509V3_add_value("keyid", tmp, &extlist);
OPENSSL_free(tmp);
}
if(akeyid->issuer)
extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
if(akeyid->serial) {
tmp = hex_to_string(akeyid->serial->data,
akeyid->serial->length);
X509V3_add_value("serial", tmp, &extlist);
OPENSSL_free(tmp);
}
return extlist;
}
/* Currently two options:
* keyid: use the issuers subject keyid, the value 'always' means its is
* an error if the issuer certificate doesn't have a key id.
* issuer: use the issuers cert issuer and serial number. The default is
* to only use this if keyid is not present. With the option 'always'
* this is always included.
*/
static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values)
{
char keyid=0, issuer=0;
int i;
CONF_VALUE *cnf;
ASN1_OCTET_STRING *ikeyid = NULL;
X509_NAME *isname = NULL;
GENERAL_NAMES * gens = NULL;
GENERAL_NAME *gen = NULL;
ASN1_INTEGER *serial = NULL;
X509_EXTENSION *ext;
X509 *cert;
AUTHORITY_KEYID *akeyid;
for(i = 0; i < sk_CONF_VALUE_num(values); i++)
{
cnf = sk_CONF_VALUE_value(values, i);
if(!strcmp(cnf->name, "keyid"))
{
keyid = 1;
if(cnf->value && !strcmp(cnf->value, "always"))
keyid = 2;
}
else if(!strcmp(cnf->name, "issuer"))
{
issuer = 1;
if(cnf->value && !strcmp(cnf->value, "always"))
issuer = 2;
}
else
{
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
ERR_add_error_data(2, "name=", cnf->name);
return NULL;
}
}
if(!ctx || !ctx->issuer_cert)
{
if(ctx && (ctx->flags==CTX_TEST))
return AUTHORITY_KEYID_new();
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
return NULL;
}
cert = ctx->issuer_cert;
if(keyid)
{
i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
if((i >= 0) && (ext = X509_get_ext(cert, i)))
ikeyid = X509V3_EXT_d2i(ext);
if(keyid==2 && !ikeyid)
{
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
return NULL;
}
}
if((issuer && !ikeyid) || (issuer == 2))
{
isname = X509_NAME_dup(X509_get_issuer_name(cert));
serial = M_ASN1_INTEGER_dup(X509_get_serialNumber(cert));
if(!isname || !serial)
{
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
goto err;
}
}
if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
if(isname)
{
if(!(gens = sk_GENERAL_NAME_new_null())
|| !(gen = GENERAL_NAME_new())
|| !sk_GENERAL_NAME_push(gens, gen))
{
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
goto err;
}
gen->type = GEN_DIRNAME;
gen->d.dirn = isname;
}
akeyid->issuer = gens;
akeyid->serial = serial;
akeyid->keyid = ikeyid;
return akeyid;
err:
X509_NAME_free(isname);
M_ASN1_INTEGER_free(serial);
M_ASN1_OCTET_STRING_free(ikeyid);
return NULL;
}