2
0
mirror of https://github.com/openssl/openssl.git synced 2024-12-21 06:09:35 +08:00
openssl/crypto/provider.c
Richard Levitte e077455e9e Stop raising ERR_R_MALLOC_FAILURE in most places
Since OPENSSL_malloc() and friends report ERR_R_MALLOC_FAILURE, and
at least handle the file name and line number they are called from,
there's no need to report ERR_R_MALLOC_FAILURE where they are called
directly, or when SSLfatal() and RLAYERfatal() is used, the reason
`ERR_R_MALLOC_FAILURE` is changed to `ERR_R_CRYPTO_LIB`.

There were a number of places where `ERR_R_MALLOC_FAILURE` was reported
even though it was a function from a different sub-system that was
called.  Those places are changed to report ERR_R_{lib}_LIB, where
{lib} is the name of that sub-system.
Some of them are tricky to get right, as we have a lot of functions
that belong in the ASN1 sub-system, and all the `sk_` calls or from
the CRYPTO sub-system.

Some extra adaptation was necessary where there were custom OPENSSL_malloc()
wrappers, and some bugs are fixed alongside these changes.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19301)
2022-10-05 14:02:03 +02:00

148 lines
4.2 KiB
C

/*
* Copyright 2019-2021 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 <string.h>
#include <openssl/err.h>
#include <openssl/cryptoerr.h>
#include <openssl/provider.h>
#include <openssl/core_names.h>
#include "internal/provider.h"
#include "provider_local.h"
OSSL_PROVIDER *OSSL_PROVIDER_try_load(OSSL_LIB_CTX *libctx, const char *name,
int retain_fallbacks)
{
OSSL_PROVIDER *prov = NULL, *actual;
int isnew = 0;
/* Find it or create it */
if ((prov = ossl_provider_find(libctx, name, 0)) == NULL) {
if ((prov = ossl_provider_new(libctx, name, NULL, 0)) == NULL)
return NULL;
isnew = 1;
}
if (!ossl_provider_activate(prov, 1, 0)) {
ossl_provider_free(prov);
return NULL;
}
actual = prov;
if (isnew && !ossl_provider_add_to_store(prov, &actual, retain_fallbacks)) {
ossl_provider_deactivate(prov, 1);
ossl_provider_free(prov);
return NULL;
}
if (actual != prov) {
if (!ossl_provider_activate(actual, 1, 0)) {
ossl_provider_free(actual);
return NULL;
}
}
return actual;
}
OSSL_PROVIDER *OSSL_PROVIDER_load(OSSL_LIB_CTX *libctx, const char *name)
{
/* Any attempt to load a provider disables auto-loading of defaults */
if (ossl_provider_disable_fallback_loading(libctx))
return OSSL_PROVIDER_try_load(libctx, name, 0);
return NULL;
}
int OSSL_PROVIDER_unload(OSSL_PROVIDER *prov)
{
if (!ossl_provider_deactivate(prov, 1))
return 0;
ossl_provider_free(prov);
return 1;
}
const OSSL_PARAM *OSSL_PROVIDER_gettable_params(const OSSL_PROVIDER *prov)
{
return ossl_provider_gettable_params(prov);
}
int OSSL_PROVIDER_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
{
return ossl_provider_get_params(prov, params);
}
const OSSL_ALGORITHM *OSSL_PROVIDER_query_operation(const OSSL_PROVIDER *prov,
int operation_id,
int *no_cache)
{
return ossl_provider_query_operation(prov, operation_id, no_cache);
}
void OSSL_PROVIDER_unquery_operation(const OSSL_PROVIDER *prov,
int operation_id,
const OSSL_ALGORITHM *algs)
{
ossl_provider_unquery_operation(prov, operation_id, algs);
}
void *OSSL_PROVIDER_get0_provider_ctx(const OSSL_PROVIDER *prov)
{
return ossl_provider_prov_ctx(prov);
}
const OSSL_DISPATCH *OSSL_PROVIDER_get0_dispatch(const OSSL_PROVIDER *prov)
{
return ossl_provider_get0_dispatch(prov);
}
int OSSL_PROVIDER_self_test(const OSSL_PROVIDER *prov)
{
return ossl_provider_self_test(prov);
}
int OSSL_PROVIDER_get_capabilities(const OSSL_PROVIDER *prov,
const char *capability,
OSSL_CALLBACK *cb,
void *arg)
{
return ossl_provider_get_capabilities(prov, capability, cb, arg);
}
int OSSL_PROVIDER_add_builtin(OSSL_LIB_CTX *libctx, const char *name,
OSSL_provider_init_fn *init_fn)
{
OSSL_PROVIDER_INFO entry;
if (name == NULL || init_fn == NULL) {
ERR_raise(ERR_LIB_CRYPTO, ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
memset(&entry, 0, sizeof(entry));
entry.name = OPENSSL_strdup(name);
if (entry.name == NULL)
return 0;
entry.init = init_fn;
if (!ossl_provider_info_add_to_store(libctx, &entry)) {
ossl_provider_info_clear(&entry);
return 0;
}
return 1;
}
const char *OSSL_PROVIDER_get0_name(const OSSL_PROVIDER *prov)
{
return ossl_provider_name(prov);
}
int OSSL_PROVIDER_do_all(OSSL_LIB_CTX *ctx,
int (*cb)(OSSL_PROVIDER *provider,
void *cbdata),
void *cbdata)
{
return ossl_provider_doall_activated(ctx, cb, cbdata);
}