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 #include "ssltestlib.h"
13 static void copy_flags(BIO *bio)
16 BIO *next = BIO_next(bio);
18 flags = BIO_test_flags(next, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
19 BIO_clear_flags(bio, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
20 BIO_set_flags(bio, flags);
23 static int tls_corrupt_read(BIO *bio, char *out, int outl)
26 BIO *next = BIO_next(bio);
28 ret = BIO_read(next, out, outl);
34 static int tls_corrupt_write(BIO *bio, const char *in, int inl)
37 BIO *next = BIO_next(bio);
40 if (in[0] == SSL3_RT_APPLICATION_DATA) {
41 copy = BUF_memdup(in, inl);
42 TEST_check(copy != NULL);
43 /* corrupt last bit of application data */
45 ret = BIO_write(next, copy, inl);
48 ret = BIO_write(next, in, inl);
55 static long tls_corrupt_ctrl(BIO *bio, int cmd, long num, void *ptr)
58 BIO *next = BIO_next(bio);
68 ret = BIO_ctrl(next, cmd, num, ptr);
74 static int tls_corrupt_gets(BIO *bio, char *buf, int size)
76 /* We don't support this - not needed anyway */
80 static int tls_corrupt_puts(BIO *bio, const char *str)
82 /* We don't support this - not needed anyway */
86 static int tls_corrupt_new(BIO *bio)
93 static int tls_corrupt_free(BIO *bio)
100 #define BIO_TYPE_CUSTOM_FILTER (0x80 | BIO_TYPE_FILTER)
102 static BIO_METHOD *method_tls_corrupt = NULL;
104 /* Note: Not thread safe! */
105 static const BIO_METHOD *bio_f_tls_corrupt_filter(void)
107 if (method_tls_corrupt == NULL) {
108 method_tls_corrupt = BIO_meth_new(BIO_TYPE_CUSTOM_FILTER,
109 "TLS corrupt filter");
110 if ( method_tls_corrupt == NULL
111 || !BIO_meth_set_write(method_tls_corrupt, tls_corrupt_write)
112 || !BIO_meth_set_read(method_tls_corrupt, tls_corrupt_read)
113 || !BIO_meth_set_puts(method_tls_corrupt, tls_corrupt_puts)
114 || !BIO_meth_set_gets(method_tls_corrupt, tls_corrupt_gets)
115 || !BIO_meth_set_ctrl(method_tls_corrupt, tls_corrupt_ctrl)
116 || !BIO_meth_set_create(method_tls_corrupt, tls_corrupt_new)
117 || !BIO_meth_set_destroy(method_tls_corrupt, tls_corrupt_free))
120 return method_tls_corrupt;
123 static void bio_f_tls_corrupt_filter_free(void)
125 BIO_meth_free(method_tls_corrupt);
129 * The test is supposed to be executed with RSA key, customarily
130 * with apps/server.pem used even in other tests. For this reason
131 * |cipher_list| is initialized with RSA ciphers' names. This
132 * naturally means that if test is to be re-purposed for other
133 * type of key, then NIS_auth_* filter below would need adjustment.
135 static const char **cipher_list = NULL;
137 static int setup_cipher_list()
141 static STACK_OF(SSL_CIPHER) *sk_ciphers = NULL;
144 ctx = SSL_CTX_new(TLS_server_method());
145 TEST_check(ctx != NULL);
147 TEST_check(ssl != NULL);
148 sk_ciphers = SSL_get1_supported_ciphers(ssl);
149 TEST_check(sk_ciphers != NULL);
152 * The |cipher_list| will be filled only with names of RSA ciphers,
153 * so that some of the allocated space will be wasted, but the loss
154 * is deemed acceptable...
156 cipher_list = OPENSSL_malloc(sk_SSL_CIPHER_num(sk_ciphers) *
157 sizeof(cipher_list[0]));
158 TEST_check(cipher_list != NULL);
160 for (numciphers = 0, i = 0; i < sk_SSL_CIPHER_num(sk_ciphers); i++) {
161 const SSL_CIPHER *cipher = sk_SSL_CIPHER_value(sk_ciphers, i);
163 if (SSL_CIPHER_get_auth_nid(cipher) == NID_auth_rsa)
164 cipher_list[numciphers++] = SSL_CIPHER_get_name(cipher);
166 TEST_check(numciphers != 0);
168 sk_SSL_CIPHER_free(sk_ciphers);
175 static char *cert = NULL;
176 static char *privkey = NULL;
178 static int test_ssl_corrupt(int testidx)
180 SSL_CTX *sctx = NULL, *cctx = NULL;
181 SSL *server = NULL, *client = NULL;
184 static unsigned char junk[16000] = { 0 };
186 printf("Starting Test %d, %s\n", testidx, cipher_list[testidx]);
188 if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx,
189 &cctx, cert, privkey)) {
190 printf("Unable to create SSL_CTX pair\n");
194 if (!SSL_CTX_set_cipher_list(cctx, cipher_list[testidx])) {
195 printf("Failed setting cipher list\n");
199 c_to_s_fbio = BIO_new(bio_f_tls_corrupt_filter());
200 if (c_to_s_fbio == NULL) {
201 printf("Failed to create filter BIO\n");
205 /* BIO is freed by create_ssl_connection on error */
206 if (!create_ssl_objects(sctx, cctx, &server, &client, NULL,
208 printf("Unable to create SSL objects\n");
209 ERR_print_errors_fp(stdout);
213 if (!create_ssl_connection(server, client)) {
214 printf("Unable to create SSL connection\n");
215 ERR_print_errors_fp(stdout);
219 if (SSL_write(client, junk, sizeof(junk)) < 0) {
220 printf("Unable to SSL_write\n");
221 ERR_print_errors_fp(stdout);
225 if (SSL_read(server, junk, sizeof(junk)) >= 0) {
226 printf("Read should have failed with \"bad record mac\"\n");
230 if (ERR_GET_REASON(ERR_peek_error()) !=
231 SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC) {
232 ERR_print_errors_fp(stdout);
246 int main(int argc, char *argv[])
252 printf("Invalid argument count\n");
259 err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
261 CRYPTO_set_mem_debug(1);
262 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
264 ADD_ALL_TESTS(test_ssl_corrupt, setup_cipher_list());
266 testresult = run_tests(argv[0]);
268 bio_f_tls_corrupt_filter_free();
270 OPENSSL_free(cipher_list);
272 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
273 if (CRYPTO_mem_leaks(err) <= 0)