238 lines
7.0 KiB
C
Executable File
238 lines
7.0 KiB
C
Executable File
/* $OpenBSD: x509_akey.c,v 1.1 2020/06/04 15:19:31 jsing Exp $ */
|
|
/* Written by Dr Stephen N Henson (steve@openssl.org) 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 <string.h>
|
|
|
|
#include <openssl/asn1.h>
|
|
#include <openssl/asn1t.h>
|
|
#include <openssl/conf.h>
|
|
#include <openssl/err.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 = {
|
|
.ext_nid = NID_authority_key_identifier,
|
|
.ext_flags = X509V3_EXT_MULTILINE,
|
|
.it = &AUTHORITY_KEYID_it,
|
|
.ext_new = NULL,
|
|
.ext_free = NULL,
|
|
.d2i = NULL,
|
|
.i2d = NULL,
|
|
.i2s = NULL,
|
|
.s2i = NULL,
|
|
.i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
|
|
.v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
|
|
.i2r = NULL,
|
|
.r2i = NULL,
|
|
.usr_data = NULL,
|
|
};
|
|
|
|
static STACK_OF(CONF_VALUE) *
|
|
i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, AUTHORITY_KEYID *akeyid,
|
|
STACK_OF(CONF_VALUE) *extlist)
|
|
{
|
|
STACK_OF(CONF_VALUE) *free_extlist = NULL;
|
|
char *tmpstr = NULL;
|
|
|
|
if (extlist == NULL) {
|
|
if ((free_extlist = extlist = sk_CONF_VALUE_new_null()) == NULL)
|
|
return NULL;
|
|
}
|
|
|
|
if (akeyid->keyid != NULL) {
|
|
if ((tmpstr = hex_to_string(akeyid->keyid->data,
|
|
akeyid->keyid->length)) == NULL)
|
|
goto err;
|
|
if (!X509V3_add_value("keyid", tmpstr, &extlist))
|
|
goto err;
|
|
free(tmpstr);
|
|
tmpstr = NULL;
|
|
}
|
|
|
|
if (akeyid->issuer != NULL) {
|
|
if ((extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer,
|
|
extlist)) == NULL)
|
|
goto err;
|
|
}
|
|
|
|
if (akeyid->serial != NULL) {
|
|
if ((tmpstr = hex_to_string(akeyid->serial->data,
|
|
akeyid->serial->length)) == NULL)
|
|
goto err;
|
|
if (!X509V3_add_value("serial", tmpstr, &extlist))
|
|
goto err;
|
|
free(tmpstr);
|
|
tmpstr = NULL;
|
|
}
|
|
|
|
if (sk_CONF_VALUE_num(extlist) <= 0)
|
|
goto err;
|
|
|
|
return extlist;
|
|
|
|
err:
|
|
free(tmpstr);
|
|
sk_CONF_VALUE_pop_free(free_extlist, X509V3_conf_free);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
STACK_OF(GENERAL_NAME) *gens = NULL;
|
|
GENERAL_NAME *gen = NULL;
|
|
ASN1_INTEGER *serial = NULL;
|
|
X509_EXTENSION *ext;
|
|
X509 *cert;
|
|
AUTHORITY_KEYID *akeyid = NULL;
|
|
|
|
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 {
|
|
X509V3error(X509V3_R_UNKNOWN_OPTION);
|
|
ERR_asprintf_error_data("name=%s", cnf->name);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (!ctx || !ctx->issuer_cert) {
|
|
if (ctx && (ctx->flags == CTX_TEST))
|
|
return AUTHORITY_KEYID_new();
|
|
X509V3error(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) {
|
|
X509V3error(X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if ((issuer && !ikeyid) || (issuer == 2)) {
|
|
isname = X509_NAME_dup(X509_get_issuer_name(cert));
|
|
serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert));
|
|
if (!isname || !serial) {
|
|
X509V3error(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)) {
|
|
X509V3error(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:
|
|
AUTHORITY_KEYID_free(akeyid);
|
|
GENERAL_NAME_free(gen);
|
|
sk_GENERAL_NAME_free(gens);
|
|
X509_NAME_free(isname);
|
|
ASN1_INTEGER_free(serial);
|
|
ASN1_OCTET_STRING_free(ikeyid);
|
|
return NULL;
|
|
}
|