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
11 #include "ssltestlib.h"
14 static void copy_flags(BIO *bio)
17 BIO *next = BIO_next(bio);
19 flags = BIO_test_flags(next, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
20 BIO_clear_flags(bio, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
21 BIO_set_flags(bio, flags);
24 static int tls_corrupt_read(BIO *bio, char *out, int outl)
27 BIO *next = BIO_next(bio);
29 ret = BIO_read(next, out, outl);
35 static int tls_corrupt_write(BIO *bio, const char *in, int inl)
38 BIO *next = BIO_next(bio);
41 if (in[0] == SSL3_RT_APPLICATION_DATA) {
42 copy = BUF_memdup(in, inl);
43 TEST_check(copy != NULL);
44 /* corrupt last bit of application data */
46 ret = BIO_write(next, copy, inl);
49 ret = BIO_write(next, in, inl);
56 static long tls_corrupt_ctrl(BIO *bio, int cmd, long num, void *ptr)
59 BIO *next = BIO_next(bio);
69 ret = BIO_ctrl(next, cmd, num, ptr);
75 static int tls_corrupt_gets(BIO *bio, char *buf, int size)
77 /* We don't support this - not needed anyway */
81 static int tls_corrupt_puts(BIO *bio, const char *str)
83 /* We don't support this - not needed anyway */
87 static int tls_corrupt_new(BIO *bio)
94 static int tls_corrupt_free(BIO *bio)
101 #define BIO_TYPE_CUSTOM_FILTER (0x80 | BIO_TYPE_FILTER)
103 static BIO_METHOD *method_tls_corrupt = NULL;
105 /* Note: Not thread safe! */
106 static const BIO_METHOD *bio_f_tls_corrupt_filter(void)
108 if (method_tls_corrupt == NULL) {
109 method_tls_corrupt = BIO_meth_new(BIO_TYPE_CUSTOM_FILTER,
110 "TLS corrupt filter");
111 if ( method_tls_corrupt == NULL
112 || !BIO_meth_set_write(method_tls_corrupt, tls_corrupt_write)
113 || !BIO_meth_set_read(method_tls_corrupt, tls_corrupt_read)
114 || !BIO_meth_set_puts(method_tls_corrupt, tls_corrupt_puts)
115 || !BIO_meth_set_gets(method_tls_corrupt, tls_corrupt_gets)
116 || !BIO_meth_set_ctrl(method_tls_corrupt, tls_corrupt_ctrl)
117 || !BIO_meth_set_create(method_tls_corrupt, tls_corrupt_new)
118 || !BIO_meth_set_destroy(method_tls_corrupt, tls_corrupt_free))
121 return method_tls_corrupt;
124 static void bio_f_tls_corrupt_filter_free(void)
126 BIO_meth_free(method_tls_corrupt);
130 * The test is supposed to be executed with RSA key, customarily
131 * with apps/server.pem used even in other tests. For this reason
132 * |cipher_list| is initialized with RSA ciphers' names. This
133 * naturally means that if test is to be re-purposed for other
134 * type of key, then NID_auth_* filter below would need adjustment.
136 static const char **cipher_list = NULL;
138 static int setup_cipher_list()
142 static STACK_OF(SSL_CIPHER) *sk_ciphers = NULL;
145 ctx = SSL_CTX_new(TLS_server_method());
146 TEST_check(ctx != NULL);
148 TEST_check(ssl != NULL);
149 sk_ciphers = SSL_get1_supported_ciphers(ssl);
150 TEST_check(sk_ciphers != NULL);
153 * The |cipher_list| will be filled only with names of RSA ciphers,
154 * so that some of the allocated space will be wasted, but the loss
155 * is deemed acceptable...
157 cipher_list = OPENSSL_malloc(sk_SSL_CIPHER_num(sk_ciphers) *
158 sizeof(cipher_list[0]));
159 TEST_check(cipher_list != NULL);
161 for (numciphers = 0, i = 0; i < sk_SSL_CIPHER_num(sk_ciphers); i++) {
162 const SSL_CIPHER *cipher = sk_SSL_CIPHER_value(sk_ciphers, i);
164 if (SSL_CIPHER_get_auth_nid(cipher) == NID_auth_rsa)
165 cipher_list[numciphers++] = SSL_CIPHER_get_name(cipher);
167 TEST_check(numciphers != 0);
169 sk_SSL_CIPHER_free(sk_ciphers);
176 static char *cert = NULL;
177 static char *privkey = NULL;
179 static int test_ssl_corrupt(int testidx)
181 SSL_CTX *sctx = NULL, *cctx = NULL;
182 SSL *server = NULL, *client = NULL;
185 static unsigned char junk[16000] = { 0 };
186 STACK_OF(SSL_CIPHER) *ciphers;
187 const SSL_CIPHER *currcipher;
189 printf("Starting Test %d, %s\n", testidx, cipher_list[testidx]);
191 if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx,
192 &cctx, cert, privkey)) {
193 printf("Unable to create SSL_CTX pair\n");
197 if (!SSL_CTX_set_cipher_list(cctx, cipher_list[testidx])) {
198 printf("Failed setting cipher list\n");
202 ciphers = SSL_CTX_get_ciphers(cctx);
203 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) != 1) {
204 printf("Unexpected ciphers set\n");
207 currcipher = sk_SSL_CIPHER_value(ciphers, 0);
208 if (currcipher == NULL) {
209 printf("Failed getting the current cipher\n");
214 * If we haven't got a TLSv1.3 cipher, then we mustn't attempt to use
215 * TLSv1.3. Version negotiation happens before cipher selection, so we will
216 * get a "no shared cipher" error.
218 if (strcmp(SSL_CIPHER_get_version(currcipher), "TLSv1.3") != 0) {
219 if (!SSL_CTX_set_max_proto_version(cctx, TLS1_2_VERSION)) {
220 printf("Failed setting max protocol version\n");
225 c_to_s_fbio = BIO_new(bio_f_tls_corrupt_filter());
226 if (c_to_s_fbio == NULL) {
227 printf("Failed to create filter BIO\n");
231 /* BIO is freed by create_ssl_connection on error */
232 if (!create_ssl_objects(sctx, cctx, &server, &client, NULL,
234 printf("Unable to create SSL objects\n");
235 ERR_print_errors_fp(stdout);
239 if (!create_ssl_connection(server, client)) {
240 printf("Unable to create SSL connection\n");
241 ERR_print_errors_fp(stdout);
245 if (SSL_write(client, junk, sizeof(junk)) < 0) {
246 printf("Unable to SSL_write\n");
247 ERR_print_errors_fp(stdout);
251 if (SSL_read(server, junk, sizeof(junk)) >= 0) {
252 printf("Read should have failed with \"bad record mac\"\n");
256 if (ERR_GET_REASON(ERR_peek_error()) !=
257 SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC) {
258 ERR_print_errors_fp(stdout);
272 int main(int argc, char *argv[])
278 printf("Invalid argument count\n");
285 err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
287 CRYPTO_set_mem_debug(1);
288 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
290 ADD_ALL_TESTS(test_ssl_corrupt, setup_cipher_list());
292 testresult = run_tests(argv[0]);
294 bio_f_tls_corrupt_filter_free();
296 OPENSSL_free(cipher_list);
298 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
299 if (CRYPTO_mem_leaks(err) <= 0)