ref: 2bbc75bddc6f2a07056ff017108e35f14061041b
dir: /third_party/boringssl/src/crypto/x509v3/v3_akey.c/
/* v3_akey.c */
/*
* 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/mem.h>
#include <openssl/obj.h>
#include <openssl/x509v3.h>
#include "internal.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 = NULL;
int extlist_was_null = extlist == NULL;
if (akeyid->keyid) {
tmp = x509v3_bytes_to_hex(akeyid->keyid->data, akeyid->keyid->length);
int ok = tmp != NULL && X509V3_add_value("keyid", tmp, &extlist);
OPENSSL_free(tmp);
if (!ok) {
goto err;
}
}
if (akeyid->issuer) {
STACK_OF(CONF_VALUE) *tmpextlist =
i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
if (tmpextlist == NULL) {
goto err;
}
extlist = tmpextlist;
}
if (akeyid->serial) {
tmp = x509v3_bytes_to_hex(akeyid->serial->data, akeyid->serial->length);
int ok = tmp != NULL && X509V3_add_value("serial", tmp, &extlist);
OPENSSL_free(tmp);
if (!ok) {
goto err;
}
}
return extlist;
err:
if (extlist_was_null) {
sk_CONF_VALUE_pop_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;
size_t i;
int j;
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 {
OPENSSL_PUT_ERROR(X509V3, 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();
OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_ISSUER_CERTIFICATE);
return NULL;
}
cert = ctx->issuer_cert;
if (keyid) {
j = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
if ((j >= 0) && (ext = X509_get_ext(cert, j)))
ikeyid = X509V3_EXT_d2i(ext);
if (keyid == 2 && !ikeyid) {
OPENSSL_PUT_ERROR(X509V3, 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) {
OPENSSL_PUT_ERROR(X509V3, 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)) {
OPENSSL_PUT_ERROR(X509V3, 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);
ASN1_INTEGER_free(serial);
ASN1_OCTET_STRING_free(ikeyid);
return NULL;
}