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"
13 #include "test_main_custom.h"
15 static int docorrupt = 0;
17 static void copy_flags(BIO *bio)
20 BIO *next = BIO_next(bio);
22 flags = BIO_test_flags(next, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
23 BIO_clear_flags(bio, BIO_FLAGS_SHOULD_RETRY | BIO_FLAGS_RWS);
24 BIO_set_flags(bio, flags);
27 static int tls_corrupt_read(BIO *bio, char *out, int outl)
30 BIO *next = BIO_next(bio);
32 ret = BIO_read(next, out, outl);
38 static int tls_corrupt_write(BIO *bio, const char *in, int inl)
41 BIO *next = BIO_next(bio);
45 copy = BUF_memdup(in, inl);
46 TEST_check(copy != NULL);
47 /* corrupt last bit of application data */
49 ret = BIO_write(next, copy, inl);
52 ret = BIO_write(next, in, inl);
59 static long tls_corrupt_ctrl(BIO *bio, int cmd, long num, void *ptr)
62 BIO *next = BIO_next(bio);
72 ret = BIO_ctrl(next, cmd, num, ptr);
78 static int tls_corrupt_gets(BIO *bio, char *buf, int size)
80 /* We don't support this - not needed anyway */
84 static int tls_corrupt_puts(BIO *bio, const char *str)
86 /* We don't support this - not needed anyway */
90 static int tls_corrupt_new(BIO *bio)
97 static int tls_corrupt_free(BIO *bio)
104 #define BIO_TYPE_CUSTOM_FILTER (0x80 | BIO_TYPE_FILTER)
106 static BIO_METHOD *method_tls_corrupt = NULL;
108 /* Note: Not thread safe! */
109 static const BIO_METHOD *bio_f_tls_corrupt_filter(void)
111 if (method_tls_corrupt == NULL) {
112 method_tls_corrupt = BIO_meth_new(BIO_TYPE_CUSTOM_FILTER,
113 "TLS corrupt filter");
114 if ( method_tls_corrupt == NULL
115 || !BIO_meth_set_write(method_tls_corrupt, tls_corrupt_write)
116 || !BIO_meth_set_read(method_tls_corrupt, tls_corrupt_read)
117 || !BIO_meth_set_puts(method_tls_corrupt, tls_corrupt_puts)
118 || !BIO_meth_set_gets(method_tls_corrupt, tls_corrupt_gets)
119 || !BIO_meth_set_ctrl(method_tls_corrupt, tls_corrupt_ctrl)
120 || !BIO_meth_set_create(method_tls_corrupt, tls_corrupt_new)
121 || !BIO_meth_set_destroy(method_tls_corrupt, tls_corrupt_free))
124 return method_tls_corrupt;
127 static void bio_f_tls_corrupt_filter_free(void)
129 BIO_meth_free(method_tls_corrupt);
133 * The test is supposed to be executed with RSA key, customarily
134 * with apps/server.pem used even in other tests. For this reason
135 * |cipher_list| is initialized with RSA ciphers' names. This
136 * naturally means that if test is to be re-purposed for other
137 * type of key, then NID_auth_* filter below would need adjustment.
139 static const char **cipher_list = NULL;
141 static int setup_cipher_list()
145 static STACK_OF(SSL_CIPHER) *sk_ciphers = NULL;
148 ctx = SSL_CTX_new(TLS_server_method());
149 TEST_check(ctx != NULL);
151 TEST_check(ssl != NULL);
152 sk_ciphers = SSL_get1_supported_ciphers(ssl);
153 TEST_check(sk_ciphers != NULL);
156 * The |cipher_list| will be filled only with names of RSA ciphers,
157 * so that some of the allocated space will be wasted, but the loss
158 * is deemed acceptable...
160 cipher_list = OPENSSL_malloc(sk_SSL_CIPHER_num(sk_ciphers) *
161 sizeof(cipher_list[0]));
162 TEST_check(cipher_list != NULL);
164 for (numciphers = 0, i = 0; i < sk_SSL_CIPHER_num(sk_ciphers); i++) {
165 const SSL_CIPHER *cipher = sk_SSL_CIPHER_value(sk_ciphers, i);
167 if (SSL_CIPHER_get_auth_nid(cipher) == NID_auth_rsa)
168 cipher_list[numciphers++] = SSL_CIPHER_get_name(cipher);
170 TEST_check(numciphers != 0);
172 sk_SSL_CIPHER_free(sk_ciphers);
179 static char *cert = NULL;
180 static char *privkey = NULL;
182 static int test_ssl_corrupt(int testidx)
184 static unsigned char junk[16000] = { 0 };
185 SSL_CTX *sctx = NULL, *cctx = NULL;
186 SSL *server = NULL, *client = NULL;
189 STACK_OF(SSL_CIPHER) *ciphers;
190 const SSL_CIPHER *currcipher;
194 TEST_info("Starting #%d, %s", testidx, cipher_list[testidx]);
196 if (!TEST_true(create_ssl_ctx_pair(TLS_server_method(),
197 TLS_client_method(), &sctx,
198 &cctx, cert, privkey)))
201 if (!TEST_true(SSL_CTX_set_cipher_list(cctx, cipher_list[testidx])))
204 if (!TEST_ptr(ciphers = SSL_CTX_get_ciphers(cctx))
205 || !TEST_int_eq(sk_SSL_CIPHER_num(ciphers), 1)
206 || !TEST_ptr(currcipher = sk_SSL_CIPHER_value(ciphers, 0)))
210 * If we haven't got a TLSv1.3 cipher, then we mustn't attempt to use
211 * TLSv1.3. Version negotiation happens before cipher selection, so we will
212 * get a "no shared cipher" error.
214 if (strcmp(SSL_CIPHER_get_version(currcipher), "TLSv1.3") != 0) {
215 if (!TEST_true(SSL_CTX_set_max_proto_version(cctx, TLS1_2_VERSION)))
219 if (!TEST_ptr(c_to_s_fbio = BIO_new(bio_f_tls_corrupt_filter())))
222 /* BIO is freed by create_ssl_connection on error */
223 if (!TEST_true(create_ssl_objects(sctx, cctx, &server, &client, NULL,
227 if (!TEST_true(create_ssl_connection(server, client, SSL_ERROR_NONE)))
232 if (!TEST_int_ge(SSL_write(client, junk, sizeof(junk)), 0))
235 if (!TEST_int_lt(SSL_read(server, junk, sizeof(junk)), 0))
238 if (!TEST_int_eq(ERR_GET_REASON(ERR_peek_error()),
239 SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC))
251 int test_main(int argc, char *argv[])
256 TEST_error("Usage error");
262 ADD_ALL_TESTS(test_ssl_corrupt, setup_cipher_list());
264 ret = run_tests(argv[0]);
265 bio_f_tls_corrupt_filter_free();
266 OPENSSL_free(cipher_list);