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/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL licenses, (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.openssl.org/source/license.html
* or in the file LICENSE in the source distribution.
*/
/* Regression tests for ASN.1 parsing bugs. */
#include <stdio.h>
#include <string.h>
#include "testutil.h"
#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
static const ASN1_ITEM *item_type;
static const char *test_file;
typedef struct d2i_test_fixture {
const char *test_case_name;
} D2I_TEST_FIXTURE;
static D2I_TEST_FIXTURE set_up(const char *const test_case_name)
{
D2I_TEST_FIXTURE fixture;
fixture.test_case_name = test_case_name;
return fixture;
}
static int execute_test(D2I_TEST_FIXTURE fixture)
{
BIO *bio = NULL;
ASN1_VALUE *value = NULL;
int ret = 1;
unsigned char buf[2048];
const unsigned char *buf_ptr = buf;
int len;
if ((bio = BIO_new_file(test_file, "r")) == NULL)
return 1;
/*
* We don't use ASN1_item_d2i_bio because it, apparently,
* errors too early for some inputs.
*/
len = BIO_read(bio, buf, sizeof buf);
if (len < 0)
goto err;
value = ASN1_item_d2i(NULL, &buf_ptr, len, item_type);
if (value != NULL)
goto err;
ret = 0;
err:
BIO_free(bio);
ASN1_item_free(value, item_type);
return ret;
}
static void tear_down(D2I_TEST_FIXTURE fixture)
{
ERR_print_errors_fp(stderr);
}
#define SETUP_D2I_TEST_FIXTURE() \
SETUP_TEST_FIXTURE(D2I_TEST_FIXTURE, set_up)
#define EXECUTE_D2I_TEST() \
EXECUTE_TEST(execute_test, tear_down)
static int test_bad_asn1()
{
SETUP_D2I_TEST_FIXTURE();
EXECUTE_D2I_TEST();
}
/*
* Usage: d2i_test <type> <file>, e.g.
* d2i_test generalname bad_generalname.der
*/
int main(int argc, char **argv)
{
int result = 0;
const char *test_type_name;
if (argc != 3)
return 1;
test_type_name = argv[1];
test_file = argv[2];
if (strcmp(test_type_name, "generalname") == 0) {
item_type = ASN1_ITEM_rptr(GENERAL_NAME);
} else if (strcmp(test_type_name, "x509") == 0) {
item_type = ASN1_ITEM_rptr(X509);
} else {
fprintf(stderr, "Bad type %s\n", test_type_name);
return 1;
}
ADD_TEST(test_bad_asn1);
result = run_tests(argv[0]);
return result;
}
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