/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.] */
#include <openssl_grpc/asn1.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <openssl_grpc/err.h>
#include <openssl_grpc/mem.h>
#include <openssl_grpc/obj.h>
#include "../internal.h"
#include "../lhash/internal.h"
#include "internal.h"
DEFINE_LHASH_OF(ASN1_STRING_TABLE)
static LHASH_OF(ASN1_STRING_TABLE) *string_tables = NULL;
static struct CRYPTO_STATIC_MUTEX string_tables_lock = CRYPTO_STATIC_MUTEX_INIT;
void ASN1_STRING_set_default_mask(unsigned long mask)
{
}
unsigned long ASN1_STRING_get_default_mask(void)
{
return B_ASN1_UTF8STRING;
}
int ASN1_STRING_set_default_mask_asc(const char *p)
{
return 1;
}
static const ASN1_STRING_TABLE *asn1_string_table_get(int nid);
/*
* 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 len, int inform, int nid)
{
ASN1_STRING *str = NULL;
int ret;
if (!out) {
out = &str;
}
const ASN1_STRING_TABLE *tbl = asn1_string_table_get(nid);
if (tbl != NULL) {
unsigned long mask = tbl->mask;
if (!(tbl->flags & STABLE_NO_MASK)) {
mask &= B_ASN1_UTF8STRING;
}
ret = ASN1_mbstring_ncopy(out, in, len, inform, mask, tbl->minsize,
tbl->maxsize);
} else {
ret = ASN1_mbstring_copy(out, in, len, inform, B_ASN1_UTF8STRING);
}
if (ret <= 0) {
return NULL;
}
return *out;
}
/*
* Now the tables and helper functions for the string table:
*/
/* See RFC 5280. */
#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_email_address 128
#define ub_serial_number 64
/* This table must be kept in NID order */
static 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}
};
static int table_cmp(const ASN1_STRING_TABLE *a, const ASN1_STRING_TABLE *b)
{
if (a->nid < b->nid) {
return -1;
}
if (a->nid > b->nid) {
return 1;
}
return 0;
}
static int table_cmp_void(const void *a, const void *b)
{
return table_cmp(a, b);
}
static uint32_t table_hash(const ASN1_STRING_TABLE *tbl)
{
return OPENSSL_hash32(&tbl->nid, sizeof(tbl->nid));
}
static const ASN1_STRING_TABLE *asn1_string_table_get(int nid)
{
ASN1_STRING_TABLE key;
key.nid = nid;
const ASN1_STRING_TABLE *tbl =
bsearch(&key, tbl_standard, OPENSSL_ARRAY_SIZE(tbl_standard),
sizeof(ASN1_STRING_TABLE), table_cmp_void);
if (tbl != NULL) {
return tbl;
}
CRYPTO_STATIC_MUTEX_lock_read(&string_tables_lock);
if (string_tables != NULL) {
tbl = lh_ASN1_STRING_TABLE_retrieve(string_tables, &key);
}
CRYPTO_STATIC_MUTEX_unlock_read(&string_tables_lock);
/* Note returning |tbl| without the lock is only safe because
* |ASN1_STRING_TABLE_add| cannot modify or delete existing entries. If we
* wish to support that, this function must copy the result under a lock. */
return tbl;
}
int ASN1_STRING_TABLE_add(int nid, long minsize, long maxsize,
unsigned long mask, unsigned long flags)
{
/* Existing entries cannot be overwritten. */
if (asn1_string_table_get(nid) != NULL) {
OPENSSL_PUT_ERROR(ASN1, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
int ret = 0;
CRYPTO_STATIC_MUTEX_lock_write(&string_tables_lock);
if (string_tables == NULL) {
string_tables = lh_ASN1_STRING_TABLE_new(table_hash, table_cmp);
if (string_tables == NULL) {
goto err;
}
} else {
/* Check again for an existing entry. One may have been added while
* unlocked. */
ASN1_STRING_TABLE key;
key.nid = nid;
if (lh_ASN1_STRING_TABLE_retrieve(string_tables, &key) != NULL) {
OPENSSL_PUT_ERROR(ASN1, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
goto err;
}
}
ASN1_STRING_TABLE *tbl = OPENSSL_malloc(sizeof(ASN1_STRING_TABLE));
if (tbl == NULL) {
goto err;
}
tbl->nid = nid;
tbl->flags = flags;
tbl->minsize = minsize;
tbl->maxsize = maxsize;
tbl->mask = mask;
ASN1_STRING_TABLE *old_tbl;
if (!lh_ASN1_STRING_TABLE_insert(string_tables, &old_tbl, tbl)) {
OPENSSL_free(tbl);
goto err;
}
assert(old_tbl == NULL);
ret = 1;
err:
CRYPTO_STATIC_MUTEX_unlock_write(&string_tables_lock);
return ret;
}
void ASN1_STRING_TABLE_cleanup(void)
{
}
void asn1_get_string_table_for_testing(const ASN1_STRING_TABLE **out_ptr,
size_t *out_len) {
*out_ptr = tbl_standard;
*out_len = OPENSSL_ARRAY_SIZE(tbl_standard);
}