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/*
* 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
*/
/* Internal tests for the OpenSSL library context */
#include "internal/cryptlib.h"
#include "testutil.h"
/*
* Everything between BEGIN EXAMPLE and END EXAMPLE is copied from
* doc/internal/man3/ossl_lib_ctx_get_data.pod
*/
/*
* ======================================================================
* BEGIN EXAMPLE
*/
typedef struct foo_st {
int i;
void *data;
} FOO;
static void *foo_new(OSSL_LIB_CTX *ctx)
{
FOO *ptr = OPENSSL_zalloc(sizeof(*ptr));
if (ptr != NULL)
ptr->i = 42;
return ptr;
}
static void foo_free(void *ptr)
{
OPENSSL_free(ptr);
}
static const OSSL_LIB_CTX_METHOD foo_method = {
OSSL_LIB_CTX_METHOD_DEFAULT_PRIORITY,
foo_new,
foo_free
};
/*
* END EXAMPLE
* ======================================================================
*/
static int test_context(OSSL_LIB_CTX *ctx)
{
FOO *data = NULL;
return TEST_ptr(data = ossl_lib_ctx_get_data(ctx, 0, &foo_method))
/* OPENSSL_zalloc in foo_new() initialized it to zero */
&& TEST_int_eq(data->i, 42);
}
static int test_app_context(void)
{
OSSL_LIB_CTX *ctx = NULL;
int result =
TEST_ptr(ctx = OSSL_LIB_CTX_new())
&& test_context(ctx);
OSSL_LIB_CTX_free(ctx);
return result;
}
static int test_def_context(void)
{
return test_context(NULL);
}
static int test_set0_default(void)
{
OSSL_LIB_CTX *global = OSSL_LIB_CTX_get0_global_default();
OSSL_LIB_CTX *local = OSSL_LIB_CTX_new();
OSSL_LIB_CTX *prev;
int testresult = 0;
FOO *data = NULL;
if (!TEST_ptr(global)
|| !TEST_ptr(local)
|| !TEST_ptr_eq(global, OSSL_LIB_CTX_set0_default(NULL))
|| !TEST_ptr(data = ossl_lib_ctx_get_data(local, 0, &foo_method)))
goto err;
/* Set local "i" value to 43. Global "i" should be 42 */
data->i++;
if (!TEST_int_eq(data->i, 43))
goto err;
/* The default context should still be the "global" default */
if (!TEST_ptr(data = ossl_lib_ctx_get_data(NULL, 0, &foo_method))
|| !TEST_int_eq(data->i, 42))
goto err;
/* Check we can change the local default context */
if (!TEST_ptr(prev = OSSL_LIB_CTX_set0_default(local))
|| !TEST_ptr_eq(global, prev)
|| !TEST_ptr(data = ossl_lib_ctx_get_data(NULL, 0, &foo_method))
|| !TEST_int_eq(data->i, 43))
goto err;
/* Calling OSSL_LIB_CTX_set0_default() with a NULL should be a no-op */
if (!TEST_ptr_eq(local, OSSL_LIB_CTX_set0_default(NULL))
|| !TEST_ptr(data = ossl_lib_ctx_get_data(NULL, 0, &foo_method))
|| !TEST_int_eq(data->i, 43))
goto err;
/* Global default should be unchanged */
if (!TEST_ptr_eq(global, OSSL_LIB_CTX_get0_global_default()))
goto err;
/* Check we can swap back to the global default */
if (!TEST_ptr(prev = OSSL_LIB_CTX_set0_default(global))
|| !TEST_ptr_eq(local, prev)
|| !TEST_ptr(data = ossl_lib_ctx_get_data(NULL, 0, &foo_method))
|| !TEST_int_eq(data->i, 42))
goto err;
testresult = 1;
err:
OSSL_LIB_CTX_free(local);
return testresult;
}
int setup_tests(void)
{
ADD_TEST(test_app_context);
ADD_TEST(test_def_context);
ADD_TEST(test_set0_default);
return 1;
}
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