/* 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).

 *

 */

 /*

 © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 */

#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

#include "libcrypto_wsd.h"

#include "libcrypto_wsd_macros.h"

#endif

#include <stdio.h>

#include <ctype.h>

#include "cryptlib.h"

#include <openssl/asn1.h>

#include <openssl/objects.h>

#ifndef EMULATOR

static STACK_OF(ASN1_STRING_TABLE) *stable = NULL;

#else //EMULATOR

GET_STATIC_VAR_FROM_TLS(stable,a_strnid,STACK_OF(ASN1_STRING_TABLE)*)

#define stable (*GET_WSD_VAR_NAME(stable,a_strnid, s)())

#endif //EMULATOR

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.

 */

#ifndef EMULATOR

static unsigned long global_mask = 0xFFFFFFFFL;

#else

GET_STATIC_VAR_FROM_TLS(global_mask,a_strnid, unsigned long)

#define global_mask (*GET_WSD_VAR_NAME(global_mask,a_strnid, s)())

#endif

EXPORT_C void ASN1_STRING_set_default_mask(unsigned long mask)

{

	global_mask = mask;

}

EXPORT_C 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.

 */

EXPORT_C 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.

 */

EXPORT_C 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 RFC3280 */

#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

#define ub_serial_number		64

/* This table must be kept in NID order */

#ifndef EMULATOR

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_serialNumber,		1, ub_serial_number, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},

{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_domainComponent,		1, -1, B_ASN1_IA5STRING, STABLE_NO_MASK},

{NID_ms_csp_name,		-1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK}

};

#else  //EMULATOR

const 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_serialNumber,		1, ub_serial_number, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},

{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_domainComponent,		1, -1, B_ASN1_IA5STRING, STABLE_NO_MASK},

{NID_ms_csp_name,		-1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK}

};

#endif //EMULATOR

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;

}

EXPORT_C 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);

}

EXPORT_C 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;

}

EXPORT_C 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)

#ifdef STRING_TABLE_TEST

main()

{

	ASN1_STRING_TABLE *tmp;

	int i, last_nid = -1;

	for (tmp = tbl_standard, i = 0;

		i < sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE); i++, tmp++)

		{

			if (tmp->nid < last_nid)

				{

				last_nid = 0;

				break;

				}

			last_nid = tmp->nid;

		}

	if (last_nid != 0)

		{

		printf("Table order OK\n");

		exit(0);

		}

	for (tmp = tbl_standard, i = 0;

		i < sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE); i++, tmp++)

			printf("Index %d, NID %d, Name=%s\n", i, tmp->nid,

							OBJ_nid2ln(tmp->nid));

}

#endif