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 int docorrupt
= 0;
16 static void copy_flags(BIO
*bio
)
19 BIO
*next
= BIO_next(bio
);
21 flags
= BIO_test_flags(next
, BIO_FLAGS_SHOULD_RETRY
| BIO_FLAGS_RWS
);
22 BIO_clear_flags(bio
, BIO_FLAGS_SHOULD_RETRY
| BIO_FLAGS_RWS
);
23 BIO_set_flags(bio
, flags
);
26 static int tls_corrupt_read(BIO
*bio
, char *out
, int outl
)
29 BIO
*next
= BIO_next(bio
);
31 ret
= BIO_read(next
, out
, outl
);
37 static int tls_corrupt_write(BIO
*bio
, const char *in
, int inl
)
40 BIO
*next
= BIO_next(bio
);
44 copy
= BUF_memdup(in
, inl
);
45 TEST_check(copy
!= NULL
);
46 /* corrupt last bit of application data */
48 ret
= BIO_write(next
, copy
, inl
);
51 ret
= BIO_write(next
, in
, inl
);
58 static long tls_corrupt_ctrl(BIO
*bio
, int cmd
, long num
, void *ptr
)
61 BIO
*next
= BIO_next(bio
);
71 ret
= BIO_ctrl(next
, cmd
, num
, ptr
);
77 static int tls_corrupt_gets(BIO
*bio
, char *buf
, int size
)
79 /* We don't support this - not needed anyway */
83 static int tls_corrupt_puts(BIO
*bio
, const char *str
)
85 /* We don't support this - not needed anyway */
89 static int tls_corrupt_new(BIO
*bio
)
96 static int tls_corrupt_free(BIO
*bio
)
103 #define BIO_TYPE_CUSTOM_FILTER (0x80 | BIO_TYPE_FILTER)
105 static BIO_METHOD
*method_tls_corrupt
= NULL
;
107 /* Note: Not thread safe! */
108 static const BIO_METHOD
*bio_f_tls_corrupt_filter(void)
110 if (method_tls_corrupt
== NULL
) {
111 method_tls_corrupt
= BIO_meth_new(BIO_TYPE_CUSTOM_FILTER
,
112 "TLS corrupt filter");
113 if ( method_tls_corrupt
== NULL
114 || !BIO_meth_set_write(method_tls_corrupt
, tls_corrupt_write
)
115 || !BIO_meth_set_read(method_tls_corrupt
, tls_corrupt_read
)
116 || !BIO_meth_set_puts(method_tls_corrupt
, tls_corrupt_puts
)
117 || !BIO_meth_set_gets(method_tls_corrupt
, tls_corrupt_gets
)
118 || !BIO_meth_set_ctrl(method_tls_corrupt
, tls_corrupt_ctrl
)
119 || !BIO_meth_set_create(method_tls_corrupt
, tls_corrupt_new
)
120 || !BIO_meth_set_destroy(method_tls_corrupt
, tls_corrupt_free
))
123 return method_tls_corrupt
;
126 static void bio_f_tls_corrupt_filter_free(void)
128 BIO_meth_free(method_tls_corrupt
);
132 * The test is supposed to be executed with RSA key, customarily
133 * with apps/server.pem used even in other tests. For this reason
134 * |cipher_list| is initialized with RSA ciphers' names. This
135 * naturally means that if test is to be re-purposed for other
136 * type of key, then NID_auth_* filter below would need adjustment.
138 static const char **cipher_list
= NULL
;
140 static int setup_cipher_list()
144 static STACK_OF(SSL_CIPHER
) *sk_ciphers
= NULL
;
147 ctx
= SSL_CTX_new(TLS_server_method());
148 TEST_check(ctx
!= NULL
);
150 TEST_check(ssl
!= NULL
);
151 sk_ciphers
= SSL_get1_supported_ciphers(ssl
);
152 TEST_check(sk_ciphers
!= NULL
);
155 * The |cipher_list| will be filled only with names of RSA ciphers,
156 * so that some of the allocated space will be wasted, but the loss
157 * is deemed acceptable...
159 cipher_list
= OPENSSL_malloc(sk_SSL_CIPHER_num(sk_ciphers
) *
160 sizeof(cipher_list
[0]));
161 TEST_check(cipher_list
!= NULL
);
163 for (numciphers
= 0, i
= 0; i
< sk_SSL_CIPHER_num(sk_ciphers
); i
++) {
164 const SSL_CIPHER
*cipher
= sk_SSL_CIPHER_value(sk_ciphers
, i
);
166 if (SSL_CIPHER_get_auth_nid(cipher
) == NID_auth_rsa
)
167 cipher_list
[numciphers
++] = SSL_CIPHER_get_name(cipher
);
169 TEST_check(numciphers
!= 0);
171 sk_SSL_CIPHER_free(sk_ciphers
);
178 static char *cert
= NULL
;
179 static char *privkey
= NULL
;
181 static int test_ssl_corrupt(int testidx
)
183 SSL_CTX
*sctx
= NULL
, *cctx
= NULL
;
184 SSL
*server
= NULL
, *client
= NULL
;
187 static unsigned char junk
[16000] = { 0 };
188 STACK_OF(SSL_CIPHER
) *ciphers
;
189 const SSL_CIPHER
*currcipher
;
193 printf("Starting Test %d, %s\n", testidx
, cipher_list
[testidx
]);
195 if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx
,
196 &cctx
, cert
, privkey
)) {
197 printf("Unable to create SSL_CTX pair\n");
201 if (!SSL_CTX_set_cipher_list(cctx
, cipher_list
[testidx
])) {
202 printf("Failed setting cipher list\n");
206 ciphers
= SSL_CTX_get_ciphers(cctx
);
207 if (ciphers
== NULL
|| sk_SSL_CIPHER_num(ciphers
) != 1) {
208 printf("Unexpected ciphers set\n");
211 currcipher
= sk_SSL_CIPHER_value(ciphers
, 0);
212 if (currcipher
== NULL
) {
213 printf("Failed getting the current cipher\n");
218 * If we haven't got a TLSv1.3 cipher, then we mustn't attempt to use
219 * TLSv1.3. Version negotiation happens before cipher selection, so we will
220 * get a "no shared cipher" error.
222 if (strcmp(SSL_CIPHER_get_version(currcipher
), "TLSv1.3") != 0) {
223 if (!SSL_CTX_set_max_proto_version(cctx
, TLS1_2_VERSION
)) {
224 printf("Failed setting max protocol version\n");
229 c_to_s_fbio
= BIO_new(bio_f_tls_corrupt_filter());
230 if (c_to_s_fbio
== NULL
) {
231 printf("Failed to create filter BIO\n");
235 /* BIO is freed by create_ssl_connection on error */
236 if (!create_ssl_objects(sctx
, cctx
, &server
, &client
, NULL
,
238 printf("Unable to create SSL objects\n");
239 ERR_print_errors_fp(stdout
);
243 if (!create_ssl_connection(server
, client
)) {
244 printf("Unable to create SSL connection\n");
245 ERR_print_errors_fp(stdout
);
251 if (SSL_write(client
, junk
, sizeof(junk
)) < 0) {
252 printf("Unable to SSL_write\n");
253 ERR_print_errors_fp(stdout
);
257 if (SSL_read(server
, junk
, sizeof(junk
)) >= 0) {
258 printf("Read should have failed with \"bad record mac\"\n");
262 if (ERR_GET_REASON(ERR_peek_error()) !=
263 SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC
) {
264 ERR_print_errors_fp(stdout
);
278 int main(int argc
, char *argv
[])
284 printf("Invalid argument count\n");
291 err
= BIO_new_fp(stderr
, BIO_NOCLOSE
| BIO_FP_TEXT
);
293 CRYPTO_set_mem_debug(1);
294 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON
);
296 ADD_ALL_TESTS(test_ssl_corrupt
, setup_cipher_list());
298 testresult
= run_tests(argv
[0]);
300 bio_f_tls_corrupt_filter_free();
302 OPENSSL_free(cipher_list
);
304 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
305 if (CRYPTO_mem_leaks(err
) <= 0)