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/* a_strnid.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 <ctype.h>
#include "cryptlib.h"
#include <openssl/asn1.h>
#include <openssl/objects.h>
static STACK_OF(ASN1_STRING_TABLE) *stable = NULL;
static void st_free(ASN1_STRING_TABLE *tbl);
static int sk_table_cmp(const ASN1_STRING_TABLE * const *a,
const ASN1_STRING_TABLE * const *b);
static int table_cmp(const void *a, const void *b);
/* This is the global mask for the mbstring functions: this is use to
* mask out certain types (such as BMPString and UTF8String) because
* certain software (e.g. Netscape) has problems with them.
*/
static unsigned long global_mask = 0xFFFFFFFFL;
void ASN1_STRING_set_default_mask(unsigned long mask)
{
global_mask = mask;
}
unsigned long ASN1_STRING_get_default_mask(void)
{
return global_mask;
}
/* This function sets the default to various "flavours" of configuration.
* based on an ASCII string. Currently this is:
* MASK:XXXX : a numerical mask value.
* nobmp : Don't use BMPStrings (just Printable, T61).
* pkix : PKIX recommendation in RFC2459.
* utf8only : only use UTF8Strings (RFC2459 recommendation for 2004).
* default: the default value, Printable, T61, BMP.
*/
int ASN1_STRING_set_default_mask_asc(char *p)
{
unsigned long mask;
char *end;
if(!strncmp(p, "MASK:", 5)) {
if(!p[5]) return 0;
mask = strtoul(p + 5, &end, 0);
if(*end) return 0;
} else if(!strcmp(p, "nombstr"))
mask = ~((unsigned long)(B_ASN1_BMPSTRING|B_ASN1_UTF8STRING));
else if(!strcmp(p, "pkix"))
mask = ~((unsigned long)B_ASN1_T61STRING);
else if(!strcmp(p, "utf8only")) mask = B_ASN1_UTF8STRING;
else if(!strcmp(p, "default"))
mask = 0xFFFFFFFFL;
else return 0;
ASN1_STRING_set_default_mask(mask);
return 1;
}
/* The following function generates an ASN1_STRING based on limits in a table.
* Frequently the types and length of an ASN1_STRING are restricted by a
* corresponding OID. For example certificates and certificate requests.
*/
ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out, const unsigned char *in,
int inlen, int inform, int nid)
{
ASN1_STRING_TABLE *tbl;
ASN1_STRING *str = NULL;
unsigned long mask;
int ret;
if(!out) out = &str;
tbl = ASN1_STRING_TABLE_get(nid);
if(tbl) {
mask = tbl->mask;
if(!(tbl->flags & STABLE_NO_MASK)) mask &= global_mask;
ret = ASN1_mbstring_ncopy(out, in, inlen, inform, mask,
tbl->minsize, tbl->maxsize);
} else ret = ASN1_mbstring_copy(out, in, inlen, inform, DIRSTRING_TYPE & global_mask);
if(ret <= 0) return NULL;
return *out;
}
/* Now the tables and helper functions for the string table:
*/
/* size limits: this stuff is taken straight from RFC2459 */
#define ub_name 32768
#define ub_common_name 64
#define ub_locality_name 128
#define ub_state_name 128
#define ub_organization_name 64
#define ub_organization_unit_name 64
#define ub_title 64
#define ub_email_address 128
/* This table must be kept in NID order */
static ASN1_STRING_TABLE tbl_standard[] = {
{NID_commonName, 1, ub_common_name, DIRSTRING_TYPE, 0},
{NID_countryName, 2, 2, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
{NID_localityName, 1, ub_locality_name, DIRSTRING_TYPE, 0},
{NID_stateOrProvinceName, 1, ub_state_name, DIRSTRING_TYPE, 0},
{NID_organizationName, 1, ub_organization_name, DIRSTRING_TYPE, 0},
{NID_organizationalUnitName, 1, ub_organization_unit_name, DIRSTRING_TYPE, 0},
{NID_pkcs9_emailAddress, 1, ub_email_address, B_ASN1_IA5STRING, STABLE_NO_MASK},
{NID_pkcs9_unstructuredName, 1, -1, PKCS9STRING_TYPE, 0},
{NID_pkcs9_challengePassword, 1, -1, PKCS9STRING_TYPE, 0},
{NID_pkcs9_unstructuredAddress, 1, -1, DIRSTRING_TYPE, 0},
{NID_givenName, 1, ub_name, DIRSTRING_TYPE, 0},
{NID_surname, 1, ub_name, DIRSTRING_TYPE, 0},
{NID_initials, 1, ub_name, DIRSTRING_TYPE, 0},
{NID_friendlyName, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK},
{NID_name, 1, ub_name, DIRSTRING_TYPE, 0},
{NID_dnQualifier, -1, -1, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
{NID_ms_csp_name, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK}
};
static int sk_table_cmp(const ASN1_STRING_TABLE * const *a,
const ASN1_STRING_TABLE * const *b)
{
return (*a)->nid - (*b)->nid;
}
static int table_cmp(const void *a, const void *b)
{
const ASN1_STRING_TABLE *sa = a, *sb = b;
return sa->nid - sb->nid;
}
ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid)
{
int idx;
ASN1_STRING_TABLE *ttmp;
ASN1_STRING_TABLE fnd;
fnd.nid = nid;
ttmp = (ASN1_STRING_TABLE *) OBJ_bsearch((char *)&fnd,
(char *)tbl_standard,
sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE),
sizeof(ASN1_STRING_TABLE), table_cmp);
if(ttmp) return ttmp;
if(!stable) return NULL;
idx = sk_ASN1_STRING_TABLE_find(stable, &fnd);
if(idx < 0) return NULL;
return sk_ASN1_STRING_TABLE_value(stable, idx);
}
int ASN1_STRING_TABLE_add(int nid,
long minsize, long maxsize, unsigned long mask,
unsigned long flags)
{
ASN1_STRING_TABLE *tmp;
char new_nid = 0;
flags &= ~STABLE_FLAGS_MALLOC;
if(!stable) stable = sk_ASN1_STRING_TABLE_new(sk_table_cmp);
if(!stable) {
ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD, ERR_R_MALLOC_FAILURE);
return 0;
}
if(!(tmp = ASN1_STRING_TABLE_get(nid))) {
tmp = OPENSSL_malloc(sizeof(ASN1_STRING_TABLE));
if(!tmp) {
ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD,
ERR_R_MALLOC_FAILURE);
return 0;
}
tmp->flags = flags | STABLE_FLAGS_MALLOC;
tmp->nid = nid;
new_nid = 1;
} else tmp->flags = (tmp->flags & STABLE_FLAGS_MALLOC) | flags;
if(minsize != -1) tmp->minsize = minsize;
if(maxsize != -1) tmp->maxsize = maxsize;
tmp->mask = mask;
if(new_nid) sk_ASN1_STRING_TABLE_push(stable, tmp);
return 1;
}
void ASN1_STRING_TABLE_cleanup(void)
{
STACK_OF(ASN1_STRING_TABLE) *tmp;
tmp = stable;
if(!tmp) return;
stable = NULL;
sk_ASN1_STRING_TABLE_pop_free(tmp, st_free);
}
static void st_free(ASN1_STRING_TABLE *tbl)
{
if(tbl->flags & STABLE_FLAGS_MALLOC) OPENSSL_free(tbl);
}
IMPLEMENT_STACK_OF(ASN1_STRING_TABLE)
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