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-rw-r--r--src/lib/libssl/s23_clnt.c465
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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 299d2ae5d2..0000000000
--- a/src/lib/libssl/s23_clnt.c
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1/* ssl/s23_clnt.c */
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#include <stdio.h>
60#include <openssl/buffer.h>
61#include <openssl/rand.h>
62#include <openssl/objects.h>
63#include <openssl/evp.h>
64#include "ssl_locl.h"
65
66static SSL_METHOD *ssl23_get_client_method(int ver);
67static int ssl23_client_hello(SSL *s);
68static int ssl23_get_server_hello(SSL *s);
69static SSL_METHOD *ssl23_get_client_method(int ver)
70 {
71 if (ver == SSL2_VERSION)
72 return(SSLv2_client_method());
73 if (ver == SSL3_VERSION)
74 return(SSLv3_client_method());
75 else if (ver == TLS1_VERSION)
76 return(TLSv1_client_method());
77 else
78 return(NULL);
79 }
80
81SSL_METHOD *SSLv23_client_method(void)
82 {
83 static int init=1;
84 static SSL_METHOD SSLv23_client_data;
85
86 if (init)
87 {
88 memcpy((char *)&SSLv23_client_data,
89 (char *)sslv23_base_method(),sizeof(SSL_METHOD));
90 SSLv23_client_data.ssl_connect=ssl23_connect;
91 SSLv23_client_data.get_ssl_method=ssl23_get_client_method;
92 init=0;
93 }
94 return(&SSLv23_client_data);
95 }
96
97int ssl23_connect(SSL *s)
98 {
99 BUF_MEM *buf;
100 unsigned long Time=time(NULL);
101 void (*cb)()=NULL;
102 int ret= -1;
103 int new_state,state;
104
105 RAND_seed(&Time,sizeof(Time));
106 ERR_clear_error();
107 clear_sys_error();
108
109 if (s->info_callback != NULL)
110 cb=s->info_callback;
111 else if (s->ctx->info_callback != NULL)
112 cb=s->ctx->info_callback;
113
114 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
115 s->in_handshake++;
116
117 for (;;)
118 {
119 state=s->state;
120
121 switch(s->state)
122 {
123 case SSL_ST_BEFORE:
124 case SSL_ST_CONNECT:
125 case SSL_ST_BEFORE|SSL_ST_CONNECT:
126 case SSL_ST_OK|SSL_ST_CONNECT:
127
128 if (s->session != NULL)
129 {
130 SSLerr(SSL_F_SSL23_CONNECT,SSL_R_SSL23_DOING_SESSION_ID_REUSE);
131 ret= -1;
132 goto end;
133 }
134 s->server=0;
135 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
136
137 /* s->version=TLS1_VERSION; */
138 s->type=SSL_ST_CONNECT;
139
140 if (s->init_buf == NULL)
141 {
142 if ((buf=BUF_MEM_new()) == NULL)
143 {
144 ret= -1;
145 goto end;
146 }
147 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
148 {
149 ret= -1;
150 goto end;
151 }
152 s->init_buf=buf;
153 }
154
155 if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
156
157 ssl3_init_finished_mac(s);
158
159 s->state=SSL23_ST_CW_CLNT_HELLO_A;
160 s->ctx->stats.sess_connect++;
161 s->init_num=0;
162 break;
163
164 case SSL23_ST_CW_CLNT_HELLO_A:
165 case SSL23_ST_CW_CLNT_HELLO_B:
166
167 s->shutdown=0;
168 ret=ssl23_client_hello(s);
169 if (ret <= 0) goto end;
170 s->state=SSL23_ST_CR_SRVR_HELLO_A;
171 s->init_num=0;
172
173 break;
174
175 case SSL23_ST_CR_SRVR_HELLO_A:
176 case SSL23_ST_CR_SRVR_HELLO_B:
177 ret=ssl23_get_server_hello(s);
178 if (ret >= 0) cb=NULL;
179 goto end;
180 /* break; */
181
182 default:
183 SSLerr(SSL_F_SSL23_CONNECT,SSL_R_UNKNOWN_STATE);
184 ret= -1;
185 goto end;
186 /* break; */
187 }
188
189 if (s->debug) { (void)BIO_flush(s->wbio); }
190
191 if ((cb != NULL) && (s->state != state))
192 {
193 new_state=s->state;
194 s->state=state;
195 cb(s,SSL_CB_CONNECT_LOOP,1);
196 s->state=new_state;
197 }
198 }
199end:
200 s->in_handshake--;
201 if (cb != NULL)
202 cb(s,SSL_CB_CONNECT_EXIT,ret);
203 return(ret);
204 }
205
206
207static int ssl23_client_hello(SSL *s)
208 {
209 unsigned char *buf;
210 unsigned char *p,*d;
211 int i,ch_len;
212
213 buf=(unsigned char *)s->init_buf->data;
214 if (s->state == SSL23_ST_CW_CLNT_HELLO_A)
215 {
216#if 0
217 /* don't reuse session-id's */
218 if (!ssl_get_new_session(s,0))
219 {
220 return(-1);
221 }
222#endif
223
224 p=s->s3->client_random;
225 RAND_bytes(p,SSL3_RANDOM_SIZE);
226
227 /* Do the message type and length last */
228 d= &(buf[2]);
229 p=d+9;
230
231 *(d++)=SSL2_MT_CLIENT_HELLO;
232 if (!(s->options & SSL_OP_NO_TLSv1))
233 {
234 *(d++)=TLS1_VERSION_MAJOR;
235 *(d++)=TLS1_VERSION_MINOR;
236 s->client_version=TLS1_VERSION;
237 }
238 else if (!(s->options & SSL_OP_NO_SSLv3))
239 {
240 *(d++)=SSL3_VERSION_MAJOR;
241 *(d++)=SSL3_VERSION_MINOR;
242 s->client_version=SSL3_VERSION;
243 }
244 else if (!(s->options & SSL_OP_NO_SSLv2))
245 {
246 *(d++)=SSL2_VERSION_MAJOR;
247 *(d++)=SSL2_VERSION_MINOR;
248 s->client_version=SSL2_VERSION;
249 }
250 else
251 {
252 SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_PROTOCOLS_AVAILABLE);
253 return(-1);
254 }
255
256 /* Ciphers supported */
257 i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p);
258 if (i == 0)
259 {
260 /* no ciphers */
261 SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
262 return(-1);
263 }
264 s2n(i,d);
265 p+=i;
266
267 /* put in the session-id, zero since there is no
268 * reuse. */
269#if 0
270 s->session->session_id_length=0;
271#endif
272 s2n(0,d);
273
274 if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
275 ch_len=SSL2_CHALLENGE_LENGTH;
276 else
277 ch_len=SSL2_MAX_CHALLENGE_LENGTH;
278
279 /* write out sslv2 challenge */
280 if (SSL3_RANDOM_SIZE < ch_len)
281 i=SSL3_RANDOM_SIZE;
282 else
283 i=ch_len;
284 s2n(i,d);
285 memset(&(s->s3->client_random[0]),0,SSL3_RANDOM_SIZE);
286 RAND_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
287 memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
288 p+=i;
289
290 i= p- &(buf[2]);
291 buf[0]=((i>>8)&0xff)|0x80;
292 buf[1]=(i&0xff);
293
294 s->state=SSL23_ST_CW_CLNT_HELLO_B;
295 /* number of bytes to write */
296 s->init_num=i+2;
297 s->init_off=0;
298
299 ssl3_finish_mac(s,&(buf[2]),i);
300 }
301
302 /* SSL3_ST_CW_CLNT_HELLO_B */
303 return(ssl23_write_bytes(s));
304 }
305
306static int ssl23_get_server_hello(SSL *s)
307 {
308 char buf[8];
309 unsigned char *p;
310 int i,ch_len;
311 int n;
312
313 n=ssl23_read_bytes(s,7);
314
315 if (n != 7) return(n);
316 p=s->packet;
317
318 memcpy(buf,p,n);
319
320 if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) &&
321 (p[5] == 0x00) && (p[6] == 0x02))
322 {
323 /* we are talking sslv2 */
324 /* we need to clean up the SSLv3 setup and put in the
325 * sslv2 stuff. */
326
327 if (s->options & SSL_OP_NO_SSLv2)
328 {
329 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
330 goto err;
331 }
332 if (s->s2 == NULL)
333 {
334 if (!ssl2_new(s))
335 goto err;
336 }
337 else
338 ssl2_clear(s);
339
340 if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
341 ch_len=SSL2_CHALLENGE_LENGTH;
342 else
343 ch_len=SSL2_MAX_CHALLENGE_LENGTH;
344
345 /* write out sslv2 challenge */
346 i=(SSL3_RANDOM_SIZE < ch_len)
347 ?SSL3_RANDOM_SIZE:ch_len;
348 s->s2->challenge_length=i;
349 memcpy(s->s2->challenge,
350 &(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
351
352 if (s->s3 != NULL) ssl3_free(s);
353
354 if (!BUF_MEM_grow(s->init_buf,
355 SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
356 {
357 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,ERR_R_BUF_LIB);
358 goto err;
359 }
360
361 s->state=SSL2_ST_GET_SERVER_HELLO_A;
362 s->s2->ssl2_rollback=1;
363
364 /* setup the 5 bytes we have read so we get them from
365 * the sslv2 buffer */
366 s->rstate=SSL_ST_READ_HEADER;
367 s->packet_length=n;
368 s->packet= &(s->s2->rbuf[0]);
369 memcpy(s->packet,buf,n);
370 s->s2->rbuf_left=n;
371 s->s2->rbuf_offs=0;
372
373 /* we have already written one */
374 s->s2->write_sequence=1;
375
376 s->method=SSLv2_client_method();
377 s->handshake_func=s->method->ssl_connect;
378 }
379 else if ((p[0] == SSL3_RT_HANDSHAKE) &&
380 (p[1] == SSL3_VERSION_MAJOR) &&
381 ((p[2] == SSL3_VERSION_MINOR) ||
382 (p[2] == TLS1_VERSION_MINOR)) &&
383 (p[5] == SSL3_MT_SERVER_HELLO))
384 {
385 /* we have sslv3 or tls1 */
386
387 if (!ssl_init_wbio_buffer(s,1)) goto err;
388
389 /* we are in this state */
390 s->state=SSL3_ST_CR_SRVR_HELLO_A;
391
392 /* put the 5 bytes we have read into the input buffer
393 * for SSLv3 */
394 s->rstate=SSL_ST_READ_HEADER;
395 s->packet_length=n;
396 s->packet= &(s->s3->rbuf.buf[0]);
397 memcpy(s->packet,buf,n);
398 s->s3->rbuf.left=n;
399 s->s3->rbuf.offset=0;
400
401 if ((p[2] == SSL3_VERSION_MINOR) &&
402 !(s->options & SSL_OP_NO_SSLv3))
403 {
404 s->version=SSL3_VERSION;
405 s->method=SSLv3_client_method();
406 }
407 else if ((p[2] == TLS1_VERSION_MINOR) &&
408 !(s->options & SSL_OP_NO_TLSv1))
409 {
410 s->version=TLS1_VERSION;
411 s->method=TLSv1_client_method();
412 }
413 else
414 {
415 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
416 goto err;
417 }
418
419 s->handshake_func=s->method->ssl_connect;
420 }
421 else if ((p[0] == SSL3_RT_ALERT) &&
422 (p[1] == SSL3_VERSION_MAJOR) &&
423 ((p[2] == SSL3_VERSION_MINOR) ||
424 (p[2] == TLS1_VERSION_MINOR)) &&
425 (p[3] == 0) &&
426 (p[4] == 2))
427 {
428 void (*cb)()=NULL;
429 int j;
430
431 /* An alert */
432 if (s->info_callback != NULL)
433 cb=s->info_callback;
434 else if (s->ctx->info_callback != NULL)
435 cb=s->ctx->info_callback;
436
437 i=p[5];
438 if (cb != NULL)
439 {
440 j=(i<<8)|p[6];
441 cb(s,SSL_CB_READ_ALERT,j);
442 }
443
444 s->rwstate=SSL_NOTHING;
445 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]);
446 goto err;
447 }
448 else
449 {
450 SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNKNOWN_PROTOCOL);
451 goto err;
452 }
453 s->init_num=0;
454
455 /* Since, if we are sending a ssl23 client hello, we are not
456 * reusing a session-id */
457 if (!ssl_get_new_session(s,0))
458 goto err;
459
460 s->first_packet=1;
461 return(SSL_connect(s));
462err:
463 return(-1);
464 }
465
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