2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* Regression tests for ASN.1 parsing bugs. */
17 #include <openssl/asn1.h>
18 #include <openssl/asn1t.h>
19 #include <openssl/bio.h>
20 #include <openssl/err.h>
21 #include <openssl/x509.h>
22 #include <openssl/x509v3.h>
25 static const ASN1_ITEM *item_type;
26 static const char *test_file;
39 expected_error_t code;
42 static expected_error_t expected_error = ASN1_UNKNOWN;
44 static int test_bad_asn1()
47 ASN1_VALUE *value = NULL;
49 unsigned char buf[2048];
50 const unsigned char *buf_ptr = buf;
51 unsigned char *der = NULL;
55 if ((bio = BIO_new_file(test_file, "r")) == NULL)
58 if (expected_error == ASN1_BIO) {
59 value = ASN1_item_d2i_bio(item_type, bio, NULL);
66 * Unless we are testing it we don't use ASN1_item_d2i_bio because it
67 * performs sanity checks on the input and can reject it before the
70 len = BIO_read(bio, buf, sizeof buf);
74 value = ASN1_item_d2i(NULL, &buf_ptr, len, item_type);
76 if (expected_error == ASN1_DECODE)
81 derlen = ASN1_item_i2d(value, &der, item_type);
83 if (der == NULL || derlen < 0) {
84 if (expected_error == ASN1_ENCODE)
89 if (derlen != len || memcmp(der, buf, derlen) != 0) {
90 if (expected_error == ASN1_COMPARE)
95 if (expected_error == ASN1_OK)
99 /* Don't indicate success for memory allocation errors */
100 if (ret == 1 && ERR_GET_REASON(ERR_peek_error()) == ERR_R_MALLOC_FAILURE)
104 ASN1_item_free(value, item_type);
109 * Usage: d2i_test <type> <file>, e.g.
110 * d2i_test generalname bad_generalname.der
112 int main(int argc, char **argv)
115 const char *test_type_name;
116 const char *expected_error_string;
117 const char *p = getenv("OPENSSL_DEBUG_MEMORY");
121 static error_enum expected_errors[] = {
124 {"decode", ASN1_DECODE},
125 {"encode", ASN1_ENCODE},
126 {"compare", ASN1_COMPARE}
129 if (p != NULL && strcmp(p, "on") == 0)
130 CRYPTO_set_mem_debug(1);
131 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
135 "Usage: d2i_test item_name expected_error file.der\n");
139 test_type_name = argv[1];
140 expected_error_string = argv[2];
143 item_type = ASN1_ITEM_lookup(test_type_name);
145 if (item_type == NULL) {
146 fprintf(stderr, "Unknown type %s\n", test_type_name);
147 fprintf(stderr, "Supported types:\n");
149 const ASN1_ITEM *it = ASN1_ITEM_get(i);
153 fprintf(stderr, "\t%s\n", it->sname);
158 for (i = 0; i < OSSL_NELEM(expected_errors); i++) {
159 if (strcmp(expected_errors[i].str, expected_error_string) == 0) {
160 expected_error = expected_errors[i].code;
165 if (expected_error == ASN1_UNKNOWN) {
166 fprintf(stderr, "Unknown expected error %s\n", expected_error_string);
170 ADD_TEST(test_bad_asn1);
172 result = run_tests(argv[0]);
174 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
175 if (CRYPTO_mem_leaks_fp(stderr) <= 0)