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/* $OpenBSD: obj_xref.c,v 1.8 2017/01/21 04:44:43 jsing Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 2006.
*/
/* ====================================================================
* Copyright (c) 2006 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 <openssl/objects.h>
#include "obj_xref.h"
DECLARE_STACK_OF(nid_triple)
STACK_OF(nid_triple) *sig_app, *sigx_app;
static int
sig_cmp(const nid_triple *a, const nid_triple *b)
{
return a->sign_id - b->sign_id;
}
static int sig_cmp_BSEARCH_CMP_FN(const void *, const void *);
static int sig_cmp(nid_triple const *, nid_triple const *);
static nid_triple *OBJ_bsearch_sig(nid_triple *key, nid_triple const *base, int num);
static int
sig_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
{
nid_triple const *a = a_;
nid_triple const *b = b_;
return sig_cmp(a, b);
}
static nid_triple *
OBJ_bsearch_sig(nid_triple *key, nid_triple const *base, int num)
{
return (nid_triple *)OBJ_bsearch_(key, base, num, sizeof(nid_triple),
sig_cmp_BSEARCH_CMP_FN);
}
static int
sig_sk_cmp(const nid_triple * const *a, const nid_triple * const *b)
{
return (*a)->sign_id - (*b)->sign_id;
}
static int sigx_cmp_BSEARCH_CMP_FN(const void *, const void *);
static int sigx_cmp(const nid_triple * const *, const nid_triple * const *);
static const nid_triple * *OBJ_bsearch_sigx(const nid_triple * *key, const nid_triple * const *base, int num);
static int
sigx_cmp(const nid_triple * const *a, const nid_triple * const *b)
{
int ret;
ret = (*a)->hash_id - (*b)->hash_id;
if (ret)
return ret;
return (*a)->pkey_id - (*b)->pkey_id;
}
static int
sigx_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
{
const nid_triple * const *a = a_;
const nid_triple * const *b = b_;
return sigx_cmp(a, b);
}
static const nid_triple * *
OBJ_bsearch_sigx(const nid_triple * *key, const nid_triple * const *base, int num)
{
return (const nid_triple * *)OBJ_bsearch_(key, base, num, sizeof(const nid_triple *),
sigx_cmp_BSEARCH_CMP_FN);
}
int
OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid)
{
nid_triple tmp;
const nid_triple *rv = NULL;
tmp.sign_id = signid;
if (sig_app) {
int idx = sk_nid_triple_find(sig_app, &tmp);
if (idx >= 0)
rv = sk_nid_triple_value(sig_app, idx);
}
#ifndef OBJ_XREF_TEST2
if (rv == NULL) {
rv = OBJ_bsearch_sig(&tmp, sigoid_srt,
sizeof(sigoid_srt) / sizeof(nid_triple));
}
#endif
if (rv == NULL)
return 0;
if (pdig_nid)
*pdig_nid = rv->hash_id;
if (ppkey_nid)
*ppkey_nid = rv->pkey_id;
return 1;
}
int
OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid)
{
nid_triple tmp;
const nid_triple *t = &tmp;
const nid_triple **rv = NULL;
tmp.hash_id = dig_nid;
tmp.pkey_id = pkey_nid;
if (sigx_app) {
int idx = sk_nid_triple_find(sigx_app, &tmp);
if (idx >= 0) {
t = sk_nid_triple_value(sigx_app, idx);
rv = &t;
}
}
#ifndef OBJ_XREF_TEST2
if (rv == NULL) {
rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref,
sizeof(sigoid_srt_xref) / sizeof(nid_triple *));
}
#endif
if (rv == NULL)
return 0;
if (psignid)
*psignid = (*rv)->sign_id;
return 1;
}
int
OBJ_add_sigid(int signid, int dig_id, int pkey_id)
{
nid_triple *ntr;
if (!sig_app)
sig_app = sk_nid_triple_new(sig_sk_cmp);
if (!sig_app)
return 0;
if (!sigx_app)
sigx_app = sk_nid_triple_new(sigx_cmp);
if (!sigx_app)
return 0;
ntr = reallocarray(NULL, 3, sizeof(int));
if (!ntr)
return 0;
ntr->sign_id = signid;
ntr->hash_id = dig_id;
ntr->pkey_id = pkey_id;
if (!sk_nid_triple_push(sig_app, ntr)) {
free(ntr);
return 0;
}
if (!sk_nid_triple_push(sigx_app, ntr))
return 0;
sk_nid_triple_sort(sig_app);
sk_nid_triple_sort(sigx_app);
return 1;
}
static void
sid_free(nid_triple *tt)
{
free(tt);
}
void
OBJ_sigid_free(void)
{
if (sig_app) {
sk_nid_triple_pop_free(sig_app, sid_free);
sig_app = NULL;
}
if (sigx_app) {
sk_nid_triple_free(sigx_app);
sigx_app = NULL;
}
}
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