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/*
* Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/objects.h>
#include "obj_xref.h"
#include "internal/nelem.h"
#include <openssl/err.h>
static 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;
}
DECLARE_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig);
IMPLEMENT_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig);
static int sig_sk_cmp(const nid_triple *const *a, const nid_triple *const *b)
{
return (*a)->sign_id - (*b)->sign_id;
}
DECLARE_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx);
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;
}
IMPLEMENT_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx);
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 != NULL) {
int idx = sk_nid_triple_find(sig_app, &tmp);
rv = sk_nid_triple_value(sig_app, idx);
}
#ifndef OBJ_XREF_TEST2
if (rv == NULL) {
rv = OBJ_bsearch_sig(&tmp, sigoid_srt, OSSL_NELEM(sigoid_srt));
}
#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, OSSL_NELEM(sigoid_srt_xref));
}
#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 == NULL)
sig_app = sk_nid_triple_new(sig_sk_cmp);
if (sig_app == NULL)
return 0;
if (sigx_app == NULL)
sigx_app = sk_nid_triple_new(sigx_cmp);
if (sigx_app == NULL)
return 0;
if ((ntr = OPENSSL_malloc(sizeof(*ntr))) == NULL) {
OBJerr(OBJ_F_OBJ_ADD_SIGID, ERR_R_MALLOC_FAILURE);
return 0;
}
ntr->sign_id = signid;
ntr->hash_id = dig_id;
ntr->pkey_id = pkey_id;
if (!sk_nid_triple_push(sig_app, ntr)) {
OPENSSL_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)
{
OPENSSL_free(tt);
}
void OBJ_sigid_free(void)
{
sk_nid_triple_pop_free(sig_app, sid_free);
sig_app = NULL;
sk_nid_triple_free(sigx_app);
sigx_app = NULL;
}
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