openssl/crypto/asn1/asn_mstbl.c

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/* asn_mstbl.c */
/*
* Written by Stephen Henson (steve@openssl.org) for the OpenSSL project
* 2012.
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*/
/* ====================================================================
* Copyright (c) 2012 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.
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*
* 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.
* ====================================================================
*
*/
#include <stdio.h>
#include <ctype.h>
#include <openssl/crypto.h>
#include "internal/cryptlib.h"
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#include <openssl/conf.h>
#include <openssl/x509v3.h>
/* Multi string module: add table enstries from a given section */
static int do_tcreate(char *value, char *name);
static int stbl_module_init(CONF_IMODULE *md, const CONF *cnf)
{
int i;
const char *stbl_section;
STACK_OF(CONF_VALUE) *sktmp;
CONF_VALUE *mval;
stbl_section = CONF_imodule_get_value(md);
if ((sktmp = NCONF_get_section(cnf, stbl_section)) == NULL) {
ASN1err(ASN1_F_STBL_MODULE_INIT, ASN1_R_ERROR_LOADING_SECTION);
return 0;
}
for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
mval = sk_CONF_VALUE_value(sktmp, i);
if (!do_tcreate(mval->value, mval->name)) {
ASN1err(ASN1_F_STBL_MODULE_INIT, ASN1_R_INVALID_VALUE);
return 0;
}
}
return 1;
}
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static void stbl_module_finish(CONF_IMODULE *md)
{
ASN1_STRING_TABLE_cleanup();
}
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void ASN1_add_stable_module(void)
{
CONF_module_add("stbl_section", stbl_module_init, stbl_module_finish);
}
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/*
* Create an table entry based on a name value pair. format is oid_name =
* n1:v1, n2:v2,... where name is "min", "max", "mask" or "flags".
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*/
static int do_tcreate(char *value, char *name)
{
char *eptr;
int nid, i, rv = 0;
long tbl_min = -1, tbl_max = -1;
unsigned long tbl_mask = 0, tbl_flags = 0;
STACK_OF(CONF_VALUE) *lst = NULL;
CONF_VALUE *cnf = NULL;
nid = OBJ_sn2nid(name);
if (nid == NID_undef)
nid = OBJ_ln2nid(name);
if (nid == NID_undef)
goto err;
lst = X509V3_parse_list(value);
if (!lst)
goto err;
for (i = 0; i < sk_CONF_VALUE_num(lst); i++) {
cnf = sk_CONF_VALUE_value(lst, i);
if (strcmp(cnf->name, "min") == 0) {
tbl_min = strtoul(cnf->value, &eptr, 0);
if (*eptr)
goto err;
} else if (strcmp(cnf->name, "max") == 0) {
tbl_max = strtoul(cnf->value, &eptr, 0);
if (*eptr)
goto err;
} else if (strcmp(cnf->name, "mask") == 0) {
if (!ASN1_str2mask(cnf->value, &tbl_mask) || !tbl_mask)
goto err;
} else if (strcmp(cnf->name, "flags") == 0) {
if (strcmp(cnf->value, "nomask") == 0)
tbl_flags = STABLE_NO_MASK;
else if (strcmp(cnf->value, "none") == 0)
tbl_flags = STABLE_FLAGS_CLEAR;
else
goto err;
} else
goto err;
}
rv = 1;
err:
if (rv == 0) {
ASN1err(ASN1_F_DO_TCREATE, ASN1_R_INVALID_STRING_TABLE_VALUE);
if (cnf)
ERR_add_error_data(4, "field=", cnf->name,
", value=", cnf->value);
else
ERR_add_error_data(4, "name=", name, ", value=", value);
} else {
rv = ASN1_STRING_TABLE_add(nid, tbl_min, tbl_max,
tbl_mask, tbl_flags);
if (!rv)
ASN1err(ASN1_F_DO_TCREATE, ERR_R_MALLOC_FAILURE);
}
sk_CONF_VALUE_pop_free(lst, X509V3_conf_free);
return rv;
}