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-rw-r--r--src/lib/libssl/s23_clnt.c567
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diff --git a/src/lib/libssl/s23_clnt.c b/src/lib/libssl/s23_clnt.c
deleted file mode 100644
index 4159ae0580..0000000000
--- a/src/lib/libssl/s23_clnt.c
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@@ -1,567 +0,0 @@
1/* $OpenBSD: s23_clnt.c,v 1.36 2015/02/06 08:30:23 jsing Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58/* ====================================================================
59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111
112#include <stdio.h>
113
114#include "ssl_locl.h"
115
116#include <openssl/buffer.h>
117#include <openssl/evp.h>
118#include <openssl/objects.h>
119
120static const SSL_METHOD *ssl23_get_client_method(int ver);
121static int ssl23_client_hello(SSL *s);
122static int ssl23_get_server_hello(SSL *s);
123
124const SSL_METHOD SSLv23_client_method_data = {
125 .version = TLS1_2_VERSION,
126 .ssl_new = tls1_new,
127 .ssl_clear = tls1_clear,
128 .ssl_free = tls1_free,
129 .ssl_accept = ssl_undefined_function,
130 .ssl_connect = ssl23_connect,
131 .ssl_read = ssl23_read,
132 .ssl_peek = ssl23_peek,
133 .ssl_write = ssl23_write,
134 .ssl_shutdown = ssl_undefined_function,
135 .ssl_renegotiate = ssl_undefined_function,
136 .ssl_renegotiate_check = ssl_ok,
137 .ssl_get_message = ssl3_get_message,
138 .ssl_read_bytes = ssl3_read_bytes,
139 .ssl_write_bytes = ssl3_write_bytes,
140 .ssl_dispatch_alert = ssl3_dispatch_alert,
141 .ssl_ctrl = ssl3_ctrl,
142 .ssl_ctx_ctrl = ssl3_ctx_ctrl,
143 .get_cipher_by_char = ssl3_get_cipher_by_char,
144 .put_cipher_by_char = ssl3_put_cipher_by_char,
145 .ssl_pending = ssl_undefined_const_function,
146 .num_ciphers = ssl3_num_ciphers,
147 .get_cipher = ssl3_get_cipher,
148 .get_ssl_method = ssl23_get_client_method,
149 .get_timeout = ssl23_default_timeout,
150 .ssl3_enc = &ssl3_undef_enc_method,
151 .ssl_version = ssl_undefined_void_function,
152 .ssl_callback_ctrl = ssl3_callback_ctrl,
153 .ssl_ctx_callback_ctrl = ssl3_ctx_callback_ctrl,
154};
155
156const SSL_METHOD *
157SSLv23_client_method(void)
158{
159 return &SSLv23_client_method_data;
160}
161
162static const SSL_METHOD *
163ssl23_get_client_method(int ver)
164{
165 if (ver == SSL3_VERSION)
166 return (SSLv3_client_method());
167 if (ver == TLS1_VERSION)
168 return (TLSv1_client_method());
169 if (ver == TLS1_1_VERSION)
170 return (TLSv1_1_client_method());
171 if (ver == TLS1_2_VERSION)
172 return (TLSv1_2_client_method());
173 return (NULL);
174}
175
176int
177ssl23_connect(SSL *s)
178{
179 BUF_MEM *buf = NULL;
180 void (*cb)(const SSL *ssl, int type, int val) = NULL;
181 int ret = -1;
182 int new_state, state;
183
184 ERR_clear_error();
185 errno = 0;
186
187 if (s->info_callback != NULL)
188 cb = s->info_callback;
189 else if (s->ctx->info_callback != NULL)
190 cb = s->ctx->info_callback;
191
192 s->in_handshake++;
193 if (!SSL_in_init(s) || SSL_in_before(s))
194 SSL_clear(s);
195
196 for (;;) {
197 state = s->state;
198
199 switch (s->state) {
200 case SSL_ST_BEFORE:
201 case SSL_ST_CONNECT:
202 case SSL_ST_BEFORE|SSL_ST_CONNECT:
203 case SSL_ST_OK|SSL_ST_CONNECT:
204
205 if (s->session != NULL) {
206 SSLerr(SSL_F_SSL23_CONNECT, SSL_R_SSL23_DOING_SESSION_ID_REUSE);
207 ret = -1;
208 goto end;
209 }
210 s->server = 0;
211 if (cb != NULL)
212 cb(s, SSL_CB_HANDSHAKE_START, 1);
213
214 /* s->version=TLS1_VERSION; */
215 s->type = SSL_ST_CONNECT;
216
217 if (s->init_buf == NULL) {
218 if ((buf = BUF_MEM_new()) == NULL) {
219 ret = -1;
220 goto end;
221 }
222 if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {
223 ret = -1;
224 goto end;
225 }
226 s->init_buf = buf;
227 buf = NULL;
228 }
229
230 if (!ssl3_setup_buffers(s)) {
231 ret = -1;
232 goto end;
233 }
234
235 if (!ssl3_init_finished_mac(s)) {
236 ret = -1;
237 goto end;
238 }
239
240 s->state = SSL23_ST_CW_CLNT_HELLO_A;
241 s->ctx->stats.sess_connect++;
242 s->init_num = 0;
243 break;
244
245 case SSL23_ST_CW_CLNT_HELLO_A:
246 case SSL23_ST_CW_CLNT_HELLO_B:
247
248 s->shutdown = 0;
249 ret = ssl23_client_hello(s);
250 if (ret <= 0)
251 goto end;
252 s->state = SSL23_ST_CR_SRVR_HELLO_A;
253 s->init_num = 0;
254
255 break;
256
257 case SSL23_ST_CR_SRVR_HELLO_A:
258 case SSL23_ST_CR_SRVR_HELLO_B:
259 ret = ssl23_get_server_hello(s);
260 if (ret >= 0)
261 cb = NULL;
262 goto end;
263 /* break; */
264
265 default:
266 SSLerr(SSL_F_SSL23_CONNECT, SSL_R_UNKNOWN_STATE);
267 ret = -1;
268 goto end;
269 /* break; */
270 }
271
272 if (s->debug) {
273 (void)BIO_flush(s->wbio);
274 }
275
276 if ((cb != NULL) && (s->state != state)) {
277 new_state = s->state;
278 s->state = state;
279 cb(s, SSL_CB_CONNECT_LOOP, 1);
280 s->state = new_state;
281 }
282 }
283end:
284 s->in_handshake--;
285 if (buf != NULL)
286 BUF_MEM_free(buf);
287 if (cb != NULL)
288 cb(s, SSL_CB_CONNECT_EXIT, ret);
289 return (ret);
290}
291
292static int
293ssl23_client_hello(SSL *s)
294{
295 unsigned char *buf;
296 unsigned char *p, *d;
297 int i;
298 unsigned long l;
299 int version = 0, version_major, version_minor;
300 int ret;
301 unsigned long mask, options = s->options;
302
303 /*
304 * SSL_OP_NO_X disables all protocols above X *if* there are
305 * some protocols below X enabled. This is required in order
306 * to maintain "version capability" vector contiguous. So
307 * that if application wants to disable TLS1.0 in favour of
308 * TLS1>=1, it would be insufficient to pass SSL_NO_TLSv1, the
309 * answer is SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2.
310 */
311 mask = SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3;
312 version = TLS1_2_VERSION;
313
314 if ((options & SSL_OP_NO_TLSv1_2) && (options & mask) != mask)
315 version = TLS1_1_VERSION;
316 mask &= ~SSL_OP_NO_TLSv1_1;
317 if ((options & SSL_OP_NO_TLSv1_1) && (options & mask) != mask)
318 version = TLS1_VERSION;
319 mask &= ~SSL_OP_NO_TLSv1;
320 if ((options & SSL_OP_NO_TLSv1) && (options & mask) != mask)
321 version = SSL3_VERSION;
322 mask &= ~SSL_OP_NO_SSLv3;
323
324 buf = (unsigned char *)s->init_buf->data;
325 if (s->state == SSL23_ST_CW_CLNT_HELLO_A) {
326 arc4random_buf(s->s3->client_random, SSL3_RANDOM_SIZE);
327
328 if (version == TLS1_2_VERSION) {
329 version_major = TLS1_2_VERSION_MAJOR;
330 version_minor = TLS1_2_VERSION_MINOR;
331 } else if (version == TLS1_1_VERSION) {
332 version_major = TLS1_1_VERSION_MAJOR;
333 version_minor = TLS1_1_VERSION_MINOR;
334 } else if (version == TLS1_VERSION) {
335 version_major = TLS1_VERSION_MAJOR;
336 version_minor = TLS1_VERSION_MINOR;
337 } else if (version == SSL3_VERSION) {
338 version_major = SSL3_VERSION_MAJOR;
339 version_minor = SSL3_VERSION_MINOR;
340 } else {
341 SSLerr(SSL_F_SSL23_CLIENT_HELLO, SSL_R_NO_PROTOCOLS_AVAILABLE);
342 return (-1);
343 }
344
345 s->client_version = version;
346
347 /* create Client Hello in SSL 3.0/TLS 1.0 format */
348
349 /*
350 * Do the record header (5 bytes) and handshake
351 * message header (4 bytes) last
352 */
353 d = p = &(buf[9]);
354
355 *(p++) = version_major;
356 *(p++) = version_minor;
357
358 /* Random stuff */
359 memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE);
360 p += SSL3_RANDOM_SIZE;
361
362 /* Session ID (zero since there is no reuse) */
363 *(p++) = 0;
364
365 /* Ciphers supported (using SSL 3.0/TLS 1.0 format) */
366 i = ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), &p[2]);
367 if (i == 0) {
368 SSLerr(SSL_F_SSL23_CLIENT_HELLO,
369 SSL_R_NO_CIPHERS_AVAILABLE);
370 return -1;
371 }
372#ifdef OPENSSL_MAX_TLS1_2_CIPHER_LENGTH
373 /*
374 * Some servers hang if client hello > 256 bytes
375 * as hack workaround chop number of supported ciphers
376 * to keep it well below this if we use TLS v1.2
377 */
378 if (TLS1_get_version(s) >= TLS1_2_VERSION &&
379 i > OPENSSL_MAX_TLS1_2_CIPHER_LENGTH)
380 i = OPENSSL_MAX_TLS1_2_CIPHER_LENGTH & ~1;
381#endif
382 s2n(i, p);
383 p += i;
384
385 /* add in (no) COMPRESSION */
386 *(p++) = 1;
387 /* Add the NULL method */
388 *(p++) = 0;
389
390 /* TLS extensions*/
391 if (ssl_prepare_clienthello_tlsext(s) <= 0) {
392 SSLerr(SSL_F_SSL23_CLIENT_HELLO,
393 SSL_R_CLIENTHELLO_TLSEXT);
394 return -1;
395 }
396 if ((p = ssl_add_clienthello_tlsext(s, p,
397 buf + SSL3_RT_MAX_PLAIN_LENGTH)) == NULL) {
398 SSLerr(SSL_F_SSL23_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
399 return -1;
400 }
401
402 l = p - d;
403
404 /* fill in 4-byte handshake header */
405 d = &(buf[5]);
406 *(d++) = SSL3_MT_CLIENT_HELLO;
407 l2n3(l, d);
408
409 l += 4;
410
411 if (l > SSL3_RT_MAX_PLAIN_LENGTH) {
412 SSLerr(SSL_F_SSL23_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
413 return -1;
414 }
415
416 /* fill in 5-byte record header */
417 d = buf;
418 *(d++) = SSL3_RT_HANDSHAKE;
419 *(d++) = version_major;
420
421 /*
422 * Some servers hang if we use long client hellos
423 * and a record number > TLS 1.0.
424 */
425 if (TLS1_get_client_version(s) > TLS1_VERSION)
426 *(d++) = 1;
427 else
428 *(d++) = version_minor;
429 s2n((int)l, d);
430
431 /* number of bytes to write */
432 s->init_num = p - buf;
433 s->init_off = 0;
434
435 ssl3_finish_mac(s, &(buf[5]), s->init_num - 5);
436
437 s->state = SSL23_ST_CW_CLNT_HELLO_B;
438 s->init_off = 0;
439 }
440
441 /* SSL3_ST_CW_CLNT_HELLO_B */
442 ret = ssl23_write_bytes(s);
443
444 if ((ret >= 2) && s->msg_callback) {
445 /* Client Hello has been sent; tell msg_callback */
446
447 s->msg_callback(1, version, SSL3_RT_HANDSHAKE,
448 s->init_buf->data + 5, ret - 5, s, s->msg_callback_arg);
449 }
450
451 return ret;
452}
453
454static int
455ssl23_get_server_hello(SSL *s)
456{
457 char buf[8];
458 unsigned char *p;
459 int i;
460 int n;
461
462 n = ssl23_read_bytes(s, 7);
463
464 if (n != 7)
465 return (n);
466 p = s->packet;
467
468 memcpy(buf, p, n);
469
470 /* Old unsupported sslv2 handshake */
471 if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) &&
472 (p[5] == 0x00) && (p[6] == 0x02)) {
473 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,
474 SSL_R_UNSUPPORTED_PROTOCOL);
475 goto err;
476 }
477
478 if (p[1] == SSL3_VERSION_MAJOR &&
479 p[2] <= TLS1_2_VERSION_MINOR &&
480 ((p[0] == SSL3_RT_HANDSHAKE && p[5] == SSL3_MT_SERVER_HELLO) ||
481 (p[0] == SSL3_RT_ALERT && p[3] == 0 && p[4] == 2))) {
482 /* we have sslv3 or tls1 (server hello or alert) */
483
484 if ((p[2] == SSL3_VERSION_MINOR) &&
485 !(s->options & SSL_OP_NO_SSLv3)) {
486 s->version = SSL3_VERSION;
487 s->method = SSLv3_client_method();
488 } else if ((p[2] == TLS1_VERSION_MINOR) &&
489 !(s->options & SSL_OP_NO_TLSv1)) {
490 s->version = TLS1_VERSION;
491 s->method = TLSv1_client_method();
492 } else if ((p[2] == TLS1_1_VERSION_MINOR) &&
493 !(s->options & SSL_OP_NO_TLSv1_1)) {
494 s->version = TLS1_1_VERSION;
495 s->method = TLSv1_1_client_method();
496 } else if ((p[2] == TLS1_2_VERSION_MINOR) &&
497 !(s->options & SSL_OP_NO_TLSv1_2)) {
498 s->version = TLS1_2_VERSION;
499 s->method = TLSv1_2_client_method();
500 } else {
501 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,
502 SSL_R_UNSUPPORTED_PROTOCOL);
503 goto err;
504 }
505
506 if (p[0] == SSL3_RT_ALERT && p[5] != SSL3_AL_WARNING) {
507 /* fatal alert */
508 void (*cb)(const SSL *ssl, int type, int val) = NULL;
509 int j;
510
511 if (s->info_callback != NULL)
512 cb = s->info_callback;
513 else if (s->ctx->info_callback != NULL)
514 cb = s->ctx->info_callback;
515
516 i = p[5];
517 if (cb != NULL) {
518 j = (i << 8) | p[6];
519 cb(s, SSL_CB_READ_ALERT, j);
520 }
521
522 if (s->msg_callback)
523 s->msg_callback(0, s->version, SSL3_RT_ALERT,
524 p + 5, 2, s, s->msg_callback_arg);
525
526 s->rwstate = SSL_NOTHING;
527 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,
528 SSL_AD_REASON_OFFSET + p[6]);
529 goto err;
530 }
531
532 if (!ssl_init_wbio_buffer(s, 1))
533 goto err;
534
535 /* we are in this state */
536 s->state = SSL3_ST_CR_SRVR_HELLO_A;
537
538 /* put the 7 bytes we have read into the input buffer
539 * for SSLv3 */
540 s->rstate = SSL_ST_READ_HEADER;
541 s->packet_length = n;
542 if (s->s3->rbuf.buf == NULL)
543 if (!ssl3_setup_read_buffer(s))
544 goto err;
545 s->packet = &(s->s3->rbuf.buf[0]);
546 memcpy(s->packet, buf, n);
547 s->s3->rbuf.left = n;
548 s->s3->rbuf.offset = 0;
549
550 s->handshake_func = s->method->ssl_connect;
551 } else {
552 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, SSL_R_UNKNOWN_PROTOCOL);
553 goto err;
554 }
555 s->init_num = 0;
556
557 /*
558 * Since, if we are sending a ssl23 client hello, we are not
559 * reusing a session-id
560 */
561 if (!ssl_get_new_session(s, 0))
562 goto err;
563
564 return (SSL_connect(s));
565err:
566 return (-1);
567}
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