2 * Copyright 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 #include <openssl/ssl.h>
12 #include "ssltestlib.h"
14 #include "../ssl/packet_locl.h"
16 static char *cert
= NULL
;
17 static char *privkey
= NULL
;
19 static BIO
*s_to_c_fbio
= NULL
, *c_to_s_fbio
= NULL
;
20 static int chseen
= 0, shseen
= 0, sccsseen
= 0, ccsaftersh
= 0;
21 static int ccsbeforesh
= 0, sappdataseen
= 0, cappdataseen
= 0, badccs
= 0;
22 static int badvers
= 0, badsessid
= 0;
24 static unsigned char chsessid
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
25 static size_t chsessidlen
= 0;
27 static int watchccs_new(BIO
*bi
);
28 static int watchccs_free(BIO
*a
);
29 static int watchccs_read(BIO
*b
, char *out
, int outl
);
30 static int watchccs_write(BIO
*b
, const char *in
, int inl
);
31 static long watchccs_ctrl(BIO
*b
, int cmd
, long num
, void *ptr
);
32 static int watchccs_gets(BIO
*bp
, char *buf
, int size
);
33 static int watchccs_puts(BIO
*bp
, const char *str
);
35 /* Choose a sufficiently large type likely to be unused for this custom BIO */
36 # define BIO_TYPE_WATCHCCS_FILTER (0x80 | BIO_TYPE_FILTER)
38 static BIO_METHOD
*method_watchccs
= NULL
;
40 static const BIO_METHOD
*bio_f_watchccs_filter()
42 if (method_watchccs
== NULL
) {
43 method_watchccs
= BIO_meth_new(BIO_TYPE_WATCHCCS_FILTER
,
45 if ( method_watchccs
== NULL
46 || !BIO_meth_set_write(method_watchccs
, watchccs_write
)
47 || !BIO_meth_set_read(method_watchccs
, watchccs_read
)
48 || !BIO_meth_set_puts(method_watchccs
, watchccs_puts
)
49 || !BIO_meth_set_gets(method_watchccs
, watchccs_gets
)
50 || !BIO_meth_set_ctrl(method_watchccs
, watchccs_ctrl
)
51 || !BIO_meth_set_create(method_watchccs
, watchccs_new
)
52 || !BIO_meth_set_destroy(method_watchccs
, watchccs_free
))
55 return method_watchccs
;
58 static int watchccs_new(BIO
*bio
)
64 static int watchccs_free(BIO
*bio
)
70 static int watchccs_read(BIO
*bio
, char *out
, int outl
)
73 BIO
*next
= BIO_next(bio
);
80 BIO_clear_retry_flags(bio
);
82 ret
= BIO_read(next
, out
, outl
);
83 if (ret
<= 0 && BIO_should_read(next
))
84 BIO_set_retry_read(bio
);
89 static int watchccs_write(BIO
*bio
, const char *in
, int inl
)
92 BIO
*next
= BIO_next(bio
);
93 PACKET pkt
, msg
, msgbody
, sessionid
;
94 unsigned int rectype
, recvers
, msgtype
, expectedrecvers
;
101 BIO_clear_retry_flags(bio
);
103 if (!PACKET_buf_init(&pkt
, (const unsigned char *)in
, inl
))
106 /* We assume that we always write complete records each time */
107 while (PACKET_remaining(&pkt
)) {
108 if (!PACKET_get_1(&pkt
, &rectype
)
109 || !PACKET_get_net_2(&pkt
, &recvers
)
110 || !PACKET_get_length_prefixed_2(&pkt
, &msg
))
113 expectedrecvers
= TLS1_2_VERSION
;
115 if (rectype
== SSL3_RT_HANDSHAKE
) {
116 if (!PACKET_get_1(&msg
, &msgtype
)
117 || !PACKET_get_length_prefixed_3(&msg
, &msgbody
))
119 if (msgtype
== SSL3_MT_CLIENT_HELLO
) {
123 * Skip legacy_version (2 bytes) and Random (32 bytes) to read
126 if (!PACKET_forward(&msgbody
, 34)
127 || !PACKET_get_length_prefixed_1(&msgbody
, &sessionid
))
131 expectedrecvers
= TLS1_VERSION
;
133 /* Save the session id for later */
134 chsessidlen
= PACKET_remaining(&sessionid
);
135 if (!PACKET_copy_bytes(&sessionid
, chsessid
, chsessidlen
))
139 * Check the session id for the second ClientHello is the
140 * same as the first one.
142 if (PACKET_remaining(&sessionid
) != chsessidlen
144 && memcmp(chsessid
, PACKET_data(&sessionid
),
148 } else if (msgtype
== SSL3_MT_SERVER_HELLO
) {
151 * Skip legacy_version (2 bytes) and Random (32 bytes) to read
154 if (!PACKET_forward(&msgbody
, 34)
155 || !PACKET_get_length_prefixed_1(&msgbody
, &sessionid
))
159 * Check the session id is the same as the one in the
162 if (PACKET_remaining(&sessionid
) != chsessidlen
164 && memcmp(chsessid
, PACKET_data(&sessionid
),
168 } else if (rectype
== SSL3_RT_CHANGE_CIPHER_SPEC
) {
169 if (bio
== s_to_c_fbio
) {
171 * Server writing. We shouldn't have written any app data
172 * yet, and we should have seen both the ClientHello and the
182 } else if (!cappdataseen
) {
184 * Client writing. We shouldn't have written any app data
185 * yet, and we should have seen the ClientHello
187 if (shseen
== 1 && !ccsaftersh
)
189 else if (shseen
== 0 && !ccsbeforesh
)
196 } else if(rectype
== SSL3_RT_APPLICATION_DATA
) {
197 if (bio
== s_to_c_fbio
)
202 if (recvers
!= expectedrecvers
)
206 ret
= BIO_write(next
, in
, inl
);
207 if (ret
<= 0 && BIO_should_write(next
))
208 BIO_set_retry_write(bio
);
213 static long watchccs_ctrl(BIO
*bio
, int cmd
, long num
, void *ptr
)
216 BIO
*next
= BIO_next(bio
);
226 ret
= BIO_ctrl(next
, cmd
, num
, ptr
);
232 static int watchccs_gets(BIO
*bio
, char *buf
, int size
)
234 /* We don't support this - not needed anyway */
238 static int watchccs_puts(BIO
*bio
, const char *str
)
240 return watchccs_write(bio
, str
, strlen(str
));
243 static int test_tls13ccs(int tst
)
245 SSL_CTX
*sctx
= NULL
, *cctx
= NULL
;
246 SSL
*sssl
= NULL
, *cssl
= NULL
;
248 const char msg
[] = "Dummy data";
250 size_t written
, readbytes
;
251 SSL_SESSION
*sess
= NULL
;
253 chseen
= shseen
= sccsseen
= ccsaftersh
= ccsbeforesh
= 0;
254 sappdataseen
= cappdataseen
= badccs
= badvers
= badsessid
= 0;
257 if (!TEST_true(create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(),
258 &sctx
, &cctx
, cert
, privkey
)))
262 * Test 0: Simple Handshake
263 * Test 1: Simple Handshake, client middlebox compat mode disabled
264 * Test 2: Simple Handshake, server middlebox compat mode disabled
265 * Test 3: HRR Handshake
266 * Test 4: HRR Handshake, client middlebox compat mode disabled
267 * Test 5: HRR Handshake, server middlebox compat mode disabled
268 * Test 6: Early data handshake
269 * Test 7: Early data handshake, client middlebox compat mode disabled
270 * Test 8: Early data handshake, server middlebox compat mode disabled
271 * Test 9: Early data then HRR
272 * Test 10: Early data then HRR, client middlebox compat mode disabled
273 * Test 11: Early data then HRR, server middlebox compat mode disabled
285 SSL_CTX_clear_options(cctx
, SSL_OP_ENABLE_MIDDLEBOX_COMPAT
);
291 SSL_CTX_clear_options(sctx
, SSL_OP_ENABLE_MIDDLEBOX_COMPAT
);
294 TEST_error("Invalid test value");
299 /* Get a session suitable for early_data */
300 if (!TEST_true(create_ssl_objects(sctx
, cctx
, &sssl
, &cssl
, NULL
, NULL
))
301 || !TEST_true(create_ssl_connection(sssl
, cssl
, SSL_ERROR_NONE
)))
303 sess
= SSL_get1_session(cssl
);
313 if ((tst
>= 3 && tst
<= 5) || tst
>= 9) {
315 if (!TEST_true(SSL_CTX_set1_groups_list(sctx
, "P-256")))
319 s_to_c_fbio
= BIO_new(bio_f_watchccs_filter());
320 c_to_s_fbio
= BIO_new(bio_f_watchccs_filter());
321 if (!TEST_ptr(s_to_c_fbio
)
322 || !TEST_ptr(c_to_s_fbio
)) {
323 BIO_free(s_to_c_fbio
);
324 BIO_free(c_to_s_fbio
);
328 /* BIOs get freed on error */
329 if (!TEST_true(create_ssl_objects(sctx
, cctx
, &sssl
, &cssl
, s_to_c_fbio
,
335 if (!TEST_true(SSL_set_session(cssl
, sess
))
336 || !TEST_true(SSL_write_early_data(cssl
, msg
, strlen(msg
),
339 && !TEST_int_eq(SSL_read_early_data(sssl
, buf
, sizeof(buf
),
341 SSL_READ_EARLY_DATA_SUCCESS
)))
344 if (!TEST_int_gt(SSL_connect(cssl
), 0))
347 if (!TEST_int_le(SSL_connect(cssl
), 0))
350 if (!TEST_int_eq(SSL_read_early_data(sssl
, buf
, sizeof(buf
),
352 SSL_READ_EARLY_DATA_FINISH
))
356 /* Perform handshake (or complete it if doing early data ) */
357 if (!TEST_true(create_ssl_connection(sssl
, cssl
, SSL_ERROR_NONE
)))
361 * Check there were no unexpected CCS messages, all record versions
362 * were as expected, and that the session ids were reflected by the server
365 if (!TEST_false(badccs
) || !TEST_false(badvers
) || !TEST_false(badsessid
))
370 if (!TEST_true(sccsseen
)
371 || !TEST_true(ccsaftersh
)
372 || !TEST_false(ccsbeforesh
)
373 || !TEST_size_t_gt(chsessidlen
, 0))
378 if (!TEST_true(sccsseen
)
379 || !TEST_false(ccsaftersh
)
380 || !TEST_false(ccsbeforesh
)
381 || !TEST_size_t_eq(chsessidlen
, 0))
386 if (!TEST_false(sccsseen
)
387 || !TEST_true(ccsaftersh
)
388 || !TEST_false(ccsbeforesh
)
389 || !TEST_size_t_gt(chsessidlen
, 0))
394 if (!TEST_true(sccsseen
)
395 || !TEST_true(ccsaftersh
)
396 || !TEST_false(ccsbeforesh
)
397 || !TEST_size_t_gt(chsessidlen
, 0))
402 if (!TEST_true(sccsseen
)
403 || !TEST_false(ccsaftersh
)
404 || !TEST_false(ccsbeforesh
)
405 || !TEST_size_t_eq(chsessidlen
, 0))
410 if (!TEST_false(sccsseen
)
411 || !TEST_true(ccsaftersh
)
412 || !TEST_false(ccsbeforesh
)
413 || !TEST_size_t_gt(chsessidlen
, 0))
418 if (!TEST_true(sccsseen
)
419 || !TEST_false(ccsaftersh
)
420 || !TEST_true(ccsbeforesh
)
421 || !TEST_size_t_gt(chsessidlen
, 0))
426 if (!TEST_true(sccsseen
)
427 || !TEST_false(ccsaftersh
)
428 || !TEST_false(ccsbeforesh
)
429 || !TEST_size_t_eq(chsessidlen
, 0))
434 if (!TEST_false(sccsseen
)
435 || !TEST_false(ccsaftersh
)
436 || !TEST_true(ccsbeforesh
)
437 || !TEST_size_t_gt(chsessidlen
, 0))
442 if (!TEST_true(sccsseen
)
443 || !TEST_false(ccsaftersh
)
444 || !TEST_true(ccsbeforesh
)
445 || !TEST_size_t_gt(chsessidlen
, 0))
450 if (!TEST_true(sccsseen
)
451 || !TEST_false(ccsaftersh
)
452 || !TEST_false(ccsbeforesh
)
453 || !TEST_size_t_eq(chsessidlen
, 0))
458 if (!TEST_false(sccsseen
)
459 || !TEST_false(ccsaftersh
)
460 || !TEST_true(ccsbeforesh
)
461 || !TEST_size_t_gt(chsessidlen
, 0))
466 TEST_error("Invalid test value");
472 SSL_SESSION_free(sess
);
481 int setup_tests(void)
483 if (!TEST_ptr(cert
= test_get_argument(0))
484 || !TEST_ptr(privkey
= test_get_argument(1)))
487 ADD_ALL_TESTS(test_tls13ccs
, 12);
492 void cleanup_tests(void)
494 BIO_meth_free(method_watchccs
);