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authorcvs2svn <admin@example.com>2016-07-23 19:31:36 +0000
committercvs2svn <admin@example.com>2016-07-23 19:31:36 +0000
commit86c49b31af735796dfde37aa29473a30d36367db (patch)
treee9a354a92a348338fe2b361e2eda703cae23cfab /src/lib/libssl/s23_clnt.c
parent19d5fe348e8926bac4521c5807aa64c45b8f7a41 (diff)
downloadopenbsd-OPENBSD_6_0_BASE.tar.gz
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This commit was manufactured by cvs2git to create tag 'OPENBSD_6_0_BASE'.OPENBSD_6_0_BASE
Diffstat (limited to 'src/lib/libssl/s23_clnt.c')
-rw-r--r--src/lib/libssl/s23_clnt.c480
1 files changed, 0 insertions, 480 deletions
diff --git a/src/lib/libssl/s23_clnt.c b/src/lib/libssl/s23_clnt.c
deleted file mode 100644
index c6920e2b34..0000000000
--- a/src/lib/libssl/s23_clnt.c
+++ /dev/null
@@ -1,480 +0,0 @@
1/* $OpenBSD: s23_clnt.c,v 1.46 2015/09/11 18:08:21 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 int ssl23_client_hello(SSL *s);
121static int ssl23_get_server_hello(SSL *s);
122
123int
124ssl23_connect(SSL *s)
125{
126 void (*cb)(const SSL *ssl, int type, int val) = NULL;
127 int ret = -1;
128 int new_state, state;
129
130 ERR_clear_error();
131 errno = 0;
132
133 if (s->info_callback != NULL)
134 cb = s->info_callback;
135 else if (s->ctx->info_callback != NULL)
136 cb = s->ctx->info_callback;
137
138 s->in_handshake++;
139 if (!SSL_in_init(s) || SSL_in_before(s))
140 SSL_clear(s);
141
142 for (;;) {
143 state = s->state;
144
145 switch (s->state) {
146 case SSL_ST_BEFORE:
147 case SSL_ST_CONNECT:
148 case SSL_ST_BEFORE|SSL_ST_CONNECT:
149 case SSL_ST_OK|SSL_ST_CONNECT:
150
151 if (s->session != NULL) {
152 SSLerr(SSL_F_SSL23_CONNECT, SSL_R_SSL23_DOING_SESSION_ID_REUSE);
153 ret = -1;
154 goto end;
155 }
156 s->server = 0;
157 if (cb != NULL)
158 cb(s, SSL_CB_HANDSHAKE_START, 1);
159
160 /* s->version=TLS1_VERSION; */
161 s->type = SSL_ST_CONNECT;
162
163 if (!ssl3_setup_init_buffer(s)) {
164 ret = -1;
165 goto end;
166 }
167 if (!ssl3_setup_buffers(s)) {
168 ret = -1;
169 goto end;
170 }
171 if (!tls1_init_finished_mac(s)) {
172 ret = -1;
173 goto end;
174 }
175
176 s->state = SSL23_ST_CW_CLNT_HELLO_A;
177 s->ctx->stats.sess_connect++;
178 s->init_num = 0;
179 break;
180
181 case SSL23_ST_CW_CLNT_HELLO_A:
182 case SSL23_ST_CW_CLNT_HELLO_B:
183
184 s->shutdown = 0;
185 ret = ssl23_client_hello(s);
186 if (ret <= 0)
187 goto end;
188 s->state = SSL23_ST_CR_SRVR_HELLO_A;
189 s->init_num = 0;
190
191 break;
192
193 case SSL23_ST_CR_SRVR_HELLO_A:
194 case SSL23_ST_CR_SRVR_HELLO_B:
195 ret = ssl23_get_server_hello(s);
196 if (ret >= 0)
197 cb = NULL;
198 goto end;
199 /* break; */
200
201 default:
202 SSLerr(SSL_F_SSL23_CONNECT, SSL_R_UNKNOWN_STATE);
203 ret = -1;
204 goto end;
205 /* break; */
206 }
207
208 if (s->debug) {
209 (void)BIO_flush(s->wbio);
210 }
211
212 if ((cb != NULL) && (s->state != state)) {
213 new_state = s->state;
214 s->state = state;
215 cb(s, SSL_CB_CONNECT_LOOP, 1);
216 s->state = new_state;
217 }
218 }
219
220end:
221 s->in_handshake--;
222 if (cb != NULL)
223 cb(s, SSL_CB_CONNECT_EXIT, ret);
224
225 return (ret);
226}
227
228static int
229ssl23_client_hello(SSL *s)
230{
231 unsigned char *buf;
232 unsigned char *p, *d;
233 int i;
234 unsigned long l;
235 int version = 0, version_major, version_minor;
236 int ret;
237 unsigned long mask, options = s->options;
238
239 /*
240 * SSL_OP_NO_X disables all protocols above X *if* there are
241 * some protocols below X enabled. This is required in order
242 * to maintain "version capability" vector contiguous. So
243 * that if application wants to disable TLS1.0 in favour of
244 * TLS1>=1, it would be insufficient to pass SSL_NO_TLSv1, the
245 * answer is SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2.
246 */
247 mask = SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1;
248 version = TLS1_2_VERSION;
249
250 if ((options & SSL_OP_NO_TLSv1_2) && (options & mask) != mask)
251 version = TLS1_1_VERSION;
252 mask &= ~SSL_OP_NO_TLSv1_1;
253 if ((options & SSL_OP_NO_TLSv1_1) && (options & mask) != mask)
254 version = TLS1_VERSION;
255 mask &= ~SSL_OP_NO_TLSv1;
256
257 buf = (unsigned char *)s->init_buf->data;
258 if (s->state == SSL23_ST_CW_CLNT_HELLO_A) {
259 arc4random_buf(s->s3->client_random, SSL3_RANDOM_SIZE);
260
261 if (version == TLS1_2_VERSION) {
262 version_major = TLS1_2_VERSION_MAJOR;
263 version_minor = TLS1_2_VERSION_MINOR;
264 } else if (version == TLS1_1_VERSION) {
265 version_major = TLS1_1_VERSION_MAJOR;
266 version_minor = TLS1_1_VERSION_MINOR;
267 } else if (version == TLS1_VERSION) {
268 version_major = TLS1_VERSION_MAJOR;
269 version_minor = TLS1_VERSION_MINOR;
270 } else {
271 SSLerr(SSL_F_SSL23_CLIENT_HELLO,
272 SSL_R_NO_PROTOCOLS_AVAILABLE);
273 return (-1);
274 }
275
276 s->client_version = version;
277
278 /* create Client Hello in SSL 3.0/TLS 1.0 format */
279
280 /*
281 * Do the record header (5 bytes) and handshake
282 * message header (4 bytes) last
283 */
284 d = p = &(buf[SSL3_RT_HEADER_LENGTH + SSL3_HM_HEADER_LENGTH]);
285
286 *(p++) = version_major;
287 *(p++) = version_minor;
288
289 /* Random stuff */
290 memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE);
291 p += SSL3_RANDOM_SIZE;
292
293 /* Session ID (zero since there is no reuse) */
294 *(p++) = 0;
295
296 /* Ciphers supported (using SSL 3.0/TLS 1.0 format) */
297 i = ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), &p[2]);
298 if (i == 0) {
299 SSLerr(SSL_F_SSL23_CLIENT_HELLO,
300 SSL_R_NO_CIPHERS_AVAILABLE);
301 return -1;
302 }
303 s2n(i, p);
304 p += i;
305
306 /* add in (no) COMPRESSION */
307 *(p++) = 1;
308 /* Add the NULL method */
309 *(p++) = 0;
310
311 /* TLS extensions*/
312 if ((p = ssl_add_clienthello_tlsext(s, p,
313 buf + SSL3_RT_MAX_PLAIN_LENGTH)) == NULL) {
314 SSLerr(SSL_F_SSL23_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
315 return -1;
316 }
317
318 l = p - d;
319
320 /* fill in 4-byte handshake header */
321 d = &(buf[SSL3_RT_HEADER_LENGTH]);
322 *(d++) = SSL3_MT_CLIENT_HELLO;
323 l2n3(l, d);
324
325 l += 4;
326
327 if (l > SSL3_RT_MAX_PLAIN_LENGTH) {
328 SSLerr(SSL_F_SSL23_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
329 return -1;
330 }
331
332 /* fill in 5-byte record header */
333 d = buf;
334 *(d++) = SSL3_RT_HANDSHAKE;
335 *(d++) = version_major;
336
337 /*
338 * Some servers hang if we use long client hellos
339 * and a record number > TLS 1.0.
340 */
341 if (TLS1_get_client_version(s) > TLS1_VERSION)
342 *(d++) = 1;
343 else
344 *(d++) = version_minor;
345 s2n((int)l, d);
346
347 /* number of bytes to write */
348 s->init_num = p - buf;
349 s->init_off = 0;
350
351 tls1_finish_mac(s, &(buf[SSL3_RT_HEADER_LENGTH]),
352 s->init_num - SSL3_RT_HEADER_LENGTH);
353
354 s->state = SSL23_ST_CW_CLNT_HELLO_B;
355 s->init_off = 0;
356 }
357
358 /* SSL3_ST_CW_CLNT_HELLO_B */
359 ret = ssl23_write_bytes(s);
360
361 if ((ret >= 2) && s->msg_callback) {
362 /* Client Hello has been sent; tell msg_callback */
363
364 s->msg_callback(1, version, SSL3_RT_HANDSHAKE,
365 s->init_buf->data + 5, ret - 5, s, s->msg_callback_arg);
366 }
367
368 return ret;
369}
370
371static int
372ssl23_get_server_hello(SSL *s)
373{
374 char buf[8];
375 unsigned char *p;
376 int i;
377 int n;
378
379 n = ssl23_read_bytes(s, 7);
380
381 if (n != 7)
382 return (n);
383 p = s->packet;
384
385 memcpy(buf, p, n);
386
387 /* Old unsupported sslv2 handshake */
388 if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) &&
389 (p[5] == 0x00) && (p[6] == 0x02)) {
390 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,
391 SSL_R_UNSUPPORTED_PROTOCOL);
392 goto err;
393 }
394
395 if (p[1] == SSL3_VERSION_MAJOR &&
396 p[2] <= TLS1_2_VERSION_MINOR &&
397 ((p[0] == SSL3_RT_HANDSHAKE && p[5] == SSL3_MT_SERVER_HELLO) ||
398 (p[0] == SSL3_RT_ALERT && p[3] == 0 && p[4] == 2))) {
399 /* we have sslv3 or tls1 (server hello or alert) */
400
401 if ((p[2] == TLS1_VERSION_MINOR) &&
402 !(s->options & SSL_OP_NO_TLSv1)) {
403 s->version = TLS1_VERSION;
404 s->method = TLSv1_client_method();
405 } else if ((p[2] == TLS1_1_VERSION_MINOR) &&
406 !(s->options & SSL_OP_NO_TLSv1_1)) {
407 s->version = TLS1_1_VERSION;
408 s->method = TLSv1_1_client_method();
409 } else if ((p[2] == TLS1_2_VERSION_MINOR) &&
410 !(s->options & SSL_OP_NO_TLSv1_2)) {
411 s->version = TLS1_2_VERSION;
412 s->method = TLSv1_2_client_method();
413 } else {
414 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,
415 SSL_R_UNSUPPORTED_PROTOCOL);
416 goto err;
417 }
418
419 if (p[0] == SSL3_RT_ALERT && p[5] != SSL3_AL_WARNING) {
420 /* fatal alert */
421 void (*cb)(const SSL *ssl, int type, int val) = NULL;
422 int j;
423
424 if (s->info_callback != NULL)
425 cb = s->info_callback;
426 else if (s->ctx->info_callback != NULL)
427 cb = s->ctx->info_callback;
428
429 i = p[5];
430 if (cb != NULL) {
431 j = (i << 8) | p[6];
432 cb(s, SSL_CB_READ_ALERT, j);
433 }
434
435 if (s->msg_callback)
436 s->msg_callback(0, s->version, SSL3_RT_ALERT,
437 p + 5, 2, s, s->msg_callback_arg);
438
439 s->rwstate = SSL_NOTHING;
440 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,
441 SSL_AD_REASON_OFFSET + p[6]);
442 goto err;
443 }
444
445 if (!ssl_init_wbio_buffer(s, 1))
446 goto err;
447
448 /* we are in this state */
449 s->state = SSL3_ST_CR_SRVR_HELLO_A;
450
451 /* put the 7 bytes we have read into the input buffer
452 * for SSLv3 */
453 s->rstate = SSL_ST_READ_HEADER;
454 s->packet_length = n;
455 if (s->s3->rbuf.buf == NULL)
456 if (!ssl3_setup_read_buffer(s))
457 goto err;
458 s->packet = &(s->s3->rbuf.buf[0]);
459 memcpy(s->packet, buf, n);
460 s->s3->rbuf.left = n;
461 s->s3->rbuf.offset = 0;
462
463 s->handshake_func = s->method->ssl_connect;
464 } else {
465 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, SSL_R_UNKNOWN_PROTOCOL);
466 goto err;
467 }
468 s->init_num = 0;
469
470 /*
471 * Since, if we are sending a ssl23 client hello, we are not
472 * reusing a session-id
473 */
474 if (!ssl_get_new_session(s, 0))
475 goto err;
476
477 return (SSL_connect(s));
478err:
479 return (-1);
480}
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