2 * Copyright 2016-2017 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>
23 #include "internal/nelem.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(void)
47 ASN1_VALUE *value = NULL;
49 unsigned char buf[2048];
50 const unsigned char *buf_ptr = buf;
51 unsigned char *der = NULL;
55 bio = BIO_new_file(test_file, "r");
59 if (expected_error == ASN1_BIO) {
60 if (TEST_ptr_null(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));
71 if (!TEST_int_ge(len, 0))
74 value = ASN1_item_d2i(NULL, &buf_ptr, len, item_type);
76 if (TEST_int_eq(expected_error, ASN1_DECODE))
81 derlen = ASN1_item_i2d(value, &der, item_type);
83 if (der == NULL || derlen < 0) {
84 if (TEST_int_eq(expected_error, ASN1_ENCODE))
89 if (derlen != len || memcmp(der, buf, derlen) != 0) {
90 if (TEST_int_eq(expected_error, ASN1_COMPARE))
95 if (TEST_int_eq(expected_error, ASN1_OK))
99 /* Don't indicate success for memory allocation errors */
101 && !TEST_false(ERR_GET_REASON(ERR_peek_error()) == ERR_R_MALLOC_FAILURE))
105 ASN1_item_free(value, item_type);
110 * Usage: d2i_test <name> <type> <file>, e.g.
111 * d2i_test generalname bad_generalname.der
113 int setup_tests(void)
115 const char *test_type_name;
116 const char *expected_error_string;
120 static error_enum expected_errors[] = {
123 {"decode", ASN1_DECODE},
124 {"encode", ASN1_ENCODE},
125 {"compare", ASN1_COMPARE}
128 if (!TEST_ptr(test_type_name = test_get_argument(0))
129 || !TEST_ptr(expected_error_string = test_get_argument(1))
130 || !TEST_ptr(test_file = test_get_argument(2))) {
131 TEST_note("Usage: d2i_test item_name expected_error file.der");
135 item_type = ASN1_ITEM_lookup(test_type_name);
137 if (item_type == NULL) {
138 TEST_error("Unknown type %s", test_type_name);
139 TEST_note("Supported types:");
141 const ASN1_ITEM *it = ASN1_ITEM_get(i);
145 TEST_note("\t%s", it->sname);
150 for (i = 0; i < OSSL_NELEM(expected_errors); i++) {
151 if (strcmp(expected_errors[i].str, expected_error_string) == 0) {
152 expected_error = expected_errors[i].code;
157 if (expected_error == ASN1_UNKNOWN) {
158 TEST_error("Unknown expected error %s\n", expected_error_string);
162 ADD_TEST(test_bad_asn1);