openssl/crypto/core_algorithm.c
Richard Levitte 695d195bbb Replumbing: make it possible for providers to specify multiple names
This modifies the treatment of algorithm name strings to allow
multiple names separated with colons.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/8985)
2019-10-03 15:47:25 +02:00

76 lines
2.3 KiB
C

/*
* Copyright 2019 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/core.h>
#include <openssl/core_numbers.h>
#include "internal/core.h"
#include "internal/property.h"
#include "internal/provider.h"
struct algorithm_data_st {
OPENSSL_CTX *libctx;
int operation_id; /* May be zero for finding them all */
void (*fn)(OSSL_PROVIDER *, const OSSL_ALGORITHM *, int no_store,
void *data);
void *data;
};
static int algorithm_do_this(OSSL_PROVIDER *provider, void *cbdata)
{
struct algorithm_data_st *data = cbdata;
int no_store = 0; /* Assume caching is ok */
int first_operation = 1;
int last_operation = OSSL_OP__HIGHEST;
int cur_operation;
int ok = 0;
if (data->operation_id != 0)
first_operation = last_operation = data->operation_id;
for (cur_operation = first_operation;
cur_operation <= last_operation;
cur_operation++) {
const OSSL_ALGORITHM *map =
ossl_provider_query_operation(provider, data->operation_id,
&no_store);
if (map == NULL)
break;
ok = 1; /* As long as we've found *something* */
while (map->algorithm_names != NULL) {
const OSSL_ALGORITHM *thismap = map++;
data->fn(provider, thismap, no_store, data->data);
}
}
return ok;
}
void ossl_algorithm_do_all(OPENSSL_CTX *libctx, int operation_id,
OSSL_PROVIDER *provider,
void (*fn)(OSSL_PROVIDER *provider,
const OSSL_ALGORITHM *algo,
int no_store, void *data),
void *data)
{
struct algorithm_data_st cbdata;
cbdata.libctx = libctx;
cbdata.operation_id = operation_id;
cbdata.fn = fn;
cbdata.data = data;
if (provider == NULL)
ossl_provider_forall_loaded(libctx, algorithm_do_this, &cbdata);
else
algorithm_do_this(provider, &cbdata);
}