Line data Source code
1 : /* ssl/s2_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 : * Copyright (c) 1998-2001 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 "ssl_locl.h"
113 : #ifndef OPENSSL_NO_SSL2
114 : # include <stdio.h>
115 : # include <openssl/rand.h>
116 : # include <openssl/buffer.h>
117 : # include <openssl/objects.h>
118 : # include <openssl/evp.h>
119 :
120 : static const SSL_METHOD *ssl2_get_client_method(int ver);
121 : static int get_server_finished(SSL *s);
122 : static int get_server_verify(SSL *s);
123 : static int get_server_hello(SSL *s);
124 : static int client_hello(SSL *s);
125 : static int client_master_key(SSL *s);
126 : static int client_finished(SSL *s);
127 : static int client_certificate(SSL *s);
128 : static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from,
129 : unsigned char *to, int padding);
130 : # define BREAK break
131 :
132 0 : static const SSL_METHOD *ssl2_get_client_method(int ver)
133 : {
134 0 : if (ver == SSL2_VERSION)
135 : return (SSLv2_client_method());
136 : else
137 0 : return (NULL);
138 : }
139 :
140 0 : IMPLEMENT_ssl2_meth_func(SSLv2_client_method,
141 : ssl_undefined_function,
142 : ssl2_connect, ssl2_get_client_method)
143 :
144 0 : int ssl2_connect(SSL *s)
145 : {
146 0 : unsigned long l = (unsigned long)time(NULL);
147 : BUF_MEM *buf = NULL;
148 : int ret = -1;
149 : void (*cb) (const SSL *ssl, int type, int val) = NULL;
150 : int new_state, state;
151 :
152 0 : RAND_add(&l, sizeof(l), 0);
153 0 : ERR_clear_error();
154 0 : clear_sys_error();
155 :
156 0 : if (s->info_callback != NULL)
157 : cb = s->info_callback;
158 0 : else if (s->ctx->info_callback != NULL)
159 : cb = s->ctx->info_callback;
160 :
161 : /* init things to blank */
162 0 : s->in_handshake++;
163 0 : if (!SSL_in_init(s) || SSL_in_before(s))
164 0 : SSL_clear(s);
165 :
166 : for (;;) {
167 0 : state = s->state;
168 :
169 0 : switch (s->state) {
170 : case SSL_ST_BEFORE:
171 : case SSL_ST_CONNECT:
172 : case SSL_ST_BEFORE | SSL_ST_CONNECT:
173 : case SSL_ST_OK | SSL_ST_CONNECT:
174 :
175 0 : s->server = 0;
176 0 : if (cb != NULL)
177 0 : cb(s, SSL_CB_HANDSHAKE_START, 1);
178 :
179 0 : s->version = SSL2_VERSION;
180 0 : s->type = SSL_ST_CONNECT;
181 :
182 0 : buf = s->init_buf;
183 0 : if ((buf == NULL) && ((buf = BUF_MEM_new()) == NULL)) {
184 : ret = -1;
185 : goto end;
186 : }
187 0 : if (!BUF_MEM_grow(buf, SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) {
188 0 : if (buf == s->init_buf)
189 : buf = NULL;
190 : ret = -1;
191 : goto end;
192 : }
193 0 : s->init_buf = buf;
194 : buf = NULL;
195 0 : s->init_num = 0;
196 0 : s->state = SSL2_ST_SEND_CLIENT_HELLO_A;
197 0 : s->ctx->stats.sess_connect++;
198 0 : s->handshake_func = ssl2_connect;
199 0 : BREAK;
200 :
201 : case SSL2_ST_SEND_CLIENT_HELLO_A:
202 : case SSL2_ST_SEND_CLIENT_HELLO_B:
203 0 : s->shutdown = 0;
204 0 : ret = client_hello(s);
205 0 : if (ret <= 0)
206 : goto end;
207 0 : s->init_num = 0;
208 0 : s->state = SSL2_ST_GET_SERVER_HELLO_A;
209 0 : BREAK;
210 :
211 : case SSL2_ST_GET_SERVER_HELLO_A:
212 : case SSL2_ST_GET_SERVER_HELLO_B:
213 0 : ret = get_server_hello(s);
214 0 : if (ret <= 0)
215 : goto end;
216 0 : s->init_num = 0;
217 0 : if (!s->hit) { /* new session */
218 0 : s->state = SSL2_ST_SEND_CLIENT_MASTER_KEY_A;
219 0 : BREAK;
220 : } else {
221 0 : s->state = SSL2_ST_CLIENT_START_ENCRYPTION;
222 0 : break;
223 : }
224 :
225 : case SSL2_ST_SEND_CLIENT_MASTER_KEY_A:
226 : case SSL2_ST_SEND_CLIENT_MASTER_KEY_B:
227 0 : ret = client_master_key(s);
228 0 : if (ret <= 0)
229 : goto end;
230 0 : s->init_num = 0;
231 0 : s->state = SSL2_ST_CLIENT_START_ENCRYPTION;
232 0 : break;
233 :
234 : case SSL2_ST_CLIENT_START_ENCRYPTION:
235 : /*
236 : * Ok, we now have all the stuff needed to start encrypting, so
237 : * lets fire it up :-)
238 : */
239 0 : if (!ssl2_enc_init(s, 1)) {
240 : ret = -1;
241 : goto end;
242 : }
243 0 : s->s2->clear_text = 0;
244 0 : s->state = SSL2_ST_SEND_CLIENT_FINISHED_A;
245 0 : break;
246 :
247 : case SSL2_ST_SEND_CLIENT_FINISHED_A:
248 : case SSL2_ST_SEND_CLIENT_FINISHED_B:
249 0 : ret = client_finished(s);
250 0 : if (ret <= 0)
251 : goto end;
252 0 : s->init_num = 0;
253 0 : s->state = SSL2_ST_GET_SERVER_VERIFY_A;
254 0 : break;
255 :
256 : case SSL2_ST_GET_SERVER_VERIFY_A:
257 : case SSL2_ST_GET_SERVER_VERIFY_B:
258 0 : ret = get_server_verify(s);
259 0 : if (ret <= 0)
260 : goto end;
261 0 : s->init_num = 0;
262 0 : s->state = SSL2_ST_GET_SERVER_FINISHED_A;
263 0 : break;
264 :
265 : case SSL2_ST_GET_SERVER_FINISHED_A:
266 : case SSL2_ST_GET_SERVER_FINISHED_B:
267 0 : ret = get_server_finished(s);
268 0 : if (ret <= 0)
269 : goto end;
270 : break;
271 :
272 : case SSL2_ST_SEND_CLIENT_CERTIFICATE_A:
273 : case SSL2_ST_SEND_CLIENT_CERTIFICATE_B:
274 : case SSL2_ST_SEND_CLIENT_CERTIFICATE_C:
275 : case SSL2_ST_SEND_CLIENT_CERTIFICATE_D:
276 : case SSL2_ST_X509_GET_CLIENT_CERTIFICATE:
277 0 : ret = client_certificate(s);
278 0 : if (ret <= 0)
279 : goto end;
280 0 : s->init_num = 0;
281 0 : s->state = SSL2_ST_GET_SERVER_FINISHED_A;
282 0 : break;
283 :
284 : case SSL_ST_OK:
285 0 : if (s->init_buf != NULL) {
286 0 : BUF_MEM_free(s->init_buf);
287 0 : s->init_buf = NULL;
288 : }
289 0 : s->init_num = 0;
290 : /* ERR_clear_error(); */
291 :
292 : /*
293 : * If we want to cache session-ids in the client and we
294 : * successfully add the session-id to the cache, and there is a
295 : * callback, then pass it out. 26/11/96 - eay - only add if not a
296 : * re-used session.
297 : */
298 :
299 0 : ssl_update_cache(s, SSL_SESS_CACHE_CLIENT);
300 0 : if (s->hit)
301 0 : s->ctx->stats.sess_hit++;
302 :
303 : ret = 1;
304 : /* s->server=0; */
305 0 : s->ctx->stats.sess_connect_good++;
306 :
307 0 : if (cb != NULL)
308 0 : cb(s, SSL_CB_HANDSHAKE_DONE, 1);
309 :
310 : goto end;
311 : /* break; */
312 : default:
313 0 : SSLerr(SSL_F_SSL2_CONNECT, SSL_R_UNKNOWN_STATE);
314 0 : return (-1);
315 : /* break; */
316 : }
317 :
318 0 : if ((cb != NULL) && (s->state != state)) {
319 : new_state = s->state;
320 0 : s->state = state;
321 0 : cb(s, SSL_CB_CONNECT_LOOP, 1);
322 0 : s->state = new_state;
323 : }
324 : }
325 : end:
326 0 : s->in_handshake--;
327 0 : if (buf != NULL)
328 0 : BUF_MEM_free(buf);
329 0 : if (cb != NULL)
330 0 : cb(s, SSL_CB_CONNECT_EXIT, ret);
331 0 : return (ret);
332 : }
333 :
334 0 : static int get_server_hello(SSL *s)
335 : {
336 : unsigned char *buf;
337 : unsigned char *p;
338 : int i, j;
339 : unsigned long len;
340 : STACK_OF(SSL_CIPHER) *sk = NULL, *cl, *prio, *allow;
341 :
342 0 : buf = (unsigned char *)s->init_buf->data;
343 : p = buf;
344 0 : if (s->state == SSL2_ST_GET_SERVER_HELLO_A) {
345 0 : i = ssl2_read(s, (char *)&(buf[s->init_num]), 11 - s->init_num);
346 0 : if (i < (11 - s->init_num))
347 0 : return (ssl2_part_read(s, SSL_F_GET_SERVER_HELLO, i));
348 0 : s->init_num = 11;
349 :
350 0 : if (*(p++) != SSL2_MT_SERVER_HELLO) {
351 0 : if (p[-1] != SSL2_MT_ERROR) {
352 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
353 0 : SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_READ_WRONG_PACKET_TYPE);
354 : } else
355 0 : SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_PEER_ERROR);
356 : return (-1);
357 : }
358 : # if 0
359 : s->hit = (*(p++)) ? 1 : 0;
360 : /*
361 : * Some [PPC?] compilers fail to increment p in above statement, e.g.
362 : * one provided with Rhapsody 5.5, but most recent example XL C 11.1
363 : * for AIX, even without optimization flag...
364 : */
365 : # else
366 0 : s->hit = (*p) ? 1 : 0;
367 : p++;
368 : # endif
369 0 : s->s2->tmp.cert_type = *(p++);
370 0 : n2s(p, i);
371 0 : if (i < s->version)
372 0 : s->version = i;
373 0 : n2s(p, i);
374 0 : s->s2->tmp.cert_length = i;
375 0 : n2s(p, i);
376 0 : s->s2->tmp.csl = i;
377 0 : n2s(p, i);
378 0 : s->s2->tmp.conn_id_length = i;
379 0 : s->state = SSL2_ST_GET_SERVER_HELLO_B;
380 : }
381 :
382 : /* SSL2_ST_GET_SERVER_HELLO_B */
383 0 : len =
384 0 : 11 + (unsigned long)s->s2->tmp.cert_length +
385 0 : (unsigned long)s->s2->tmp.csl +
386 0 : (unsigned long)s->s2->tmp.conn_id_length;
387 0 : if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) {
388 0 : SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_MESSAGE_TOO_LONG);
389 0 : return -1;
390 : }
391 0 : j = (int)len - s->init_num;
392 0 : i = ssl2_read(s, (char *)&(buf[s->init_num]), j);
393 0 : if (i != j)
394 0 : return (ssl2_part_read(s, SSL_F_GET_SERVER_HELLO, i));
395 0 : if (s->msg_callback) {
396 : /* SERVER-HELLO */
397 0 : s->msg_callback(0, s->version, 0, buf, (size_t)len, s,
398 : s->msg_callback_arg);
399 : }
400 :
401 : /* things are looking good */
402 :
403 0 : p = buf + 11;
404 0 : if (s->hit) {
405 0 : if (s->s2->tmp.cert_length != 0) {
406 0 : SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_REUSE_CERT_LENGTH_NOT_ZERO);
407 0 : return (-1);
408 : }
409 0 : if (s->s2->tmp.cert_type != 0) {
410 : if (!(s->options & SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG)) {
411 0 : SSLerr(SSL_F_GET_SERVER_HELLO,
412 : SSL_R_REUSE_CERT_TYPE_NOT_ZERO);
413 0 : return (-1);
414 : }
415 : }
416 0 : if (s->s2->tmp.csl != 0) {
417 0 : SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_REUSE_CIPHER_LIST_NOT_ZERO);
418 0 : return (-1);
419 : }
420 : } else {
421 : # if 0
422 : /* very bad */
423 : memset(s->session->session_id, 0,
424 : SSL_MAX_SSL_SESSION_ID_LENGTH_IN_BYTES);
425 : s->session->session_id_length = 0;
426 : # endif
427 :
428 : /*
429 : * we need to do this in case we were trying to reuse a client
430 : * session but others are already reusing it. If this was a new
431 : * 'blank' session ID, the session-id length will still be 0
432 : */
433 0 : if (s->session->session_id_length > 0) {
434 0 : if (!ssl_get_new_session(s, 0)) {
435 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
436 0 : return (-1);
437 : }
438 : }
439 :
440 0 : if (ssl2_set_certificate(s, s->s2->tmp.cert_type,
441 0 : s->s2->tmp.cert_length, p) <= 0) {
442 0 : ssl2_return_error(s, SSL2_PE_BAD_CERTIFICATE);
443 0 : return (-1);
444 : }
445 0 : p += s->s2->tmp.cert_length;
446 :
447 0 : if (s->s2->tmp.csl == 0) {
448 0 : ssl2_return_error(s, SSL2_PE_NO_CIPHER);
449 0 : SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_NO_CIPHER_LIST);
450 0 : return (-1);
451 : }
452 :
453 : /*
454 : * We have just received a list of ciphers back from the server. We
455 : * need to get the ones that match, then select the one we want the
456 : * most :-).
457 : */
458 :
459 : /* load the ciphers */
460 0 : sk = ssl_bytes_to_cipher_list(s, p, s->s2->tmp.csl,
461 0 : &s->session->ciphers);
462 0 : p += s->s2->tmp.csl;
463 0 : if (sk == NULL) {
464 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
465 0 : SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_MALLOC_FAILURE);
466 0 : return (-1);
467 : }
468 :
469 0 : (void)sk_SSL_CIPHER_set_cmp_func(sk, ssl_cipher_ptr_id_cmp);
470 :
471 : /* get the array of ciphers we will accept */
472 0 : cl = SSL_get_ciphers(s);
473 0 : (void)sk_SSL_CIPHER_set_cmp_func(cl, ssl_cipher_ptr_id_cmp);
474 :
475 : /*
476 : * If server preference flag set, choose the first
477 : * (highest priority) cipher the server sends, otherwise
478 : * client preference has priority.
479 : */
480 0 : if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) {
481 : prio = sk;
482 : allow = cl;
483 : } else {
484 : prio = cl;
485 : allow = sk;
486 : }
487 : /*
488 : * In theory we could have ciphers sent back that we don't want to
489 : * use but that does not matter since we will check against the list
490 : * we originally sent and for performance reasons we should not
491 : * bother to match the two lists up just to check.
492 : */
493 0 : for (i = 0; i < sk_SSL_CIPHER_num(prio); i++) {
494 0 : if (sk_SSL_CIPHER_find(allow, sk_SSL_CIPHER_value(prio, i)) >= 0)
495 : break;
496 : }
497 :
498 0 : if (i >= sk_SSL_CIPHER_num(prio)) {
499 0 : ssl2_return_error(s, SSL2_PE_NO_CIPHER);
500 0 : SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_NO_CIPHER_MATCH);
501 0 : return (-1);
502 : }
503 0 : s->session->cipher = sk_SSL_CIPHER_value(prio, i);
504 :
505 0 : if (s->session->peer != NULL) { /* can't happen */
506 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
507 0 : SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
508 0 : return (-1);
509 : }
510 :
511 0 : s->session->peer = s->session->sess_cert->peer_key->x509;
512 : /* peer_key->x509 has been set by ssl2_set_certificate. */
513 0 : CRYPTO_add(&s->session->peer->references, 1, CRYPTO_LOCK_X509);
514 : }
515 :
516 0 : if (s->session->sess_cert == NULL
517 0 : || s->session->peer != s->session->sess_cert->peer_key->x509)
518 : /* can't happen */
519 : {
520 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
521 0 : SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
522 0 : return (-1);
523 : }
524 :
525 0 : s->s2->conn_id_length = s->s2->tmp.conn_id_length;
526 0 : if (s->s2->conn_id_length > sizeof s->s2->conn_id) {
527 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
528 0 : SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_SSL2_CONNECTION_ID_TOO_LONG);
529 0 : return -1;
530 : }
531 0 : memcpy(s->s2->conn_id, p, s->s2->tmp.conn_id_length);
532 0 : return (1);
533 : }
534 :
535 0 : static int client_hello(SSL *s)
536 : {
537 : unsigned char *buf;
538 : unsigned char *p, *d;
539 : /* CIPHER **cipher;*/
540 : int i, n, j;
541 :
542 0 : buf = (unsigned char *)s->init_buf->data;
543 0 : if (s->state == SSL2_ST_SEND_CLIENT_HELLO_A) {
544 0 : if ((s->session == NULL) || (s->session->ssl_version != s->version)) {
545 0 : if (!ssl_get_new_session(s, 0)) {
546 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
547 0 : return (-1);
548 : }
549 : }
550 : /* else use the pre-loaded session */
551 :
552 : p = buf; /* header */
553 0 : d = p + 9; /* data section */
554 0 : *(p++) = SSL2_MT_CLIENT_HELLO; /* type */
555 0 : s2n(SSL2_VERSION, p); /* version */
556 : n = j = 0;
557 :
558 0 : n = ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), d, 0);
559 0 : d += n;
560 :
561 0 : if (n == 0) {
562 0 : SSLerr(SSL_F_CLIENT_HELLO, SSL_R_NO_CIPHERS_AVAILABLE);
563 0 : return (-1);
564 : }
565 :
566 0 : s2n(n, p); /* cipher spec num bytes */
567 :
568 0 : if ((s->session->session_id_length > 0) &&
569 : (s->session->session_id_length <=
570 : SSL2_MAX_SSL_SESSION_ID_LENGTH)) {
571 0 : i = s->session->session_id_length;
572 0 : s2n(i, p); /* session id length */
573 0 : memcpy(d, s->session->session_id, (unsigned int)i);
574 0 : d += i;
575 : } else {
576 0 : s2n(0, p);
577 : }
578 :
579 0 : s->s2->challenge_length = SSL2_CHALLENGE_LENGTH;
580 0 : s2n(SSL2_CHALLENGE_LENGTH, p); /* challenge length */
581 : /*
582 : * challenge id data
583 : */
584 0 : if (RAND_pseudo_bytes(s->s2->challenge, SSL2_CHALLENGE_LENGTH) <= 0)
585 : return -1;
586 0 : memcpy(d, s->s2->challenge, SSL2_CHALLENGE_LENGTH);
587 0 : d += SSL2_CHALLENGE_LENGTH;
588 :
589 0 : s->state = SSL2_ST_SEND_CLIENT_HELLO_B;
590 0 : s->init_num = d - buf;
591 0 : s->init_off = 0;
592 : }
593 : /* SSL2_ST_SEND_CLIENT_HELLO_B */
594 0 : return (ssl2_do_write(s));
595 : }
596 :
597 0 : static int client_master_key(SSL *s)
598 : {
599 : unsigned char *buf;
600 : unsigned char *p, *d;
601 : int clear, enc, karg, i;
602 : SSL_SESSION *sess;
603 : const EVP_CIPHER *c;
604 : const EVP_MD *md;
605 :
606 0 : buf = (unsigned char *)s->init_buf->data;
607 0 : if (s->state == SSL2_ST_SEND_CLIENT_MASTER_KEY_A) {
608 :
609 0 : if (!ssl_cipher_get_evp(s->session, &c, &md, NULL, NULL, NULL)) {
610 0 : ssl2_return_error(s, SSL2_PE_NO_CIPHER);
611 0 : SSLerr(SSL_F_CLIENT_MASTER_KEY,
612 : SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS);
613 0 : return (-1);
614 : }
615 0 : sess = s->session;
616 : p = buf;
617 0 : d = p + 10;
618 0 : *(p++) = SSL2_MT_CLIENT_MASTER_KEY; /* type */
619 :
620 0 : i = ssl_put_cipher_by_char(s, sess->cipher, p);
621 0 : p += i;
622 :
623 : /* make key_arg data */
624 0 : i = EVP_CIPHER_iv_length(c);
625 0 : sess->key_arg_length = i;
626 0 : if (i > SSL_MAX_KEY_ARG_LENGTH) {
627 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
628 0 : SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
629 0 : return -1;
630 : }
631 0 : if (i > 0)
632 0 : if (RAND_pseudo_bytes(sess->key_arg, i) <= 0)
633 : return -1;
634 :
635 : /* make a master key */
636 0 : i = EVP_CIPHER_key_length(c);
637 0 : sess->master_key_length = i;
638 0 : if (i > 0) {
639 0 : if (i > (int)sizeof(sess->master_key)) {
640 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
641 0 : SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
642 0 : return -1;
643 : }
644 0 : if (RAND_bytes(sess->master_key, i) <= 0) {
645 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
646 0 : return (-1);
647 : }
648 : }
649 :
650 0 : if (sess->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC)
651 : enc = 8;
652 0 : else if (SSL_C_IS_EXPORT(sess->cipher))
653 : enc = 5;
654 : else
655 : enc = i;
656 :
657 0 : if ((int)i < enc) {
658 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
659 0 : SSLerr(SSL_F_CLIENT_MASTER_KEY, SSL_R_CIPHER_TABLE_SRC_ERROR);
660 0 : return (-1);
661 : }
662 0 : clear = i - enc;
663 0 : s2n(clear, p);
664 0 : memcpy(d, sess->master_key, (unsigned int)clear);
665 0 : d += clear;
666 :
667 0 : enc = ssl_rsa_public_encrypt(sess->sess_cert, enc,
668 : &(sess->master_key[clear]), d,
669 0 : (s->
670 0 : s2->ssl2_rollback) ? RSA_SSLV23_PADDING
671 : : RSA_PKCS1_PADDING);
672 0 : if (enc <= 0) {
673 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
674 0 : SSLerr(SSL_F_CLIENT_MASTER_KEY, SSL_R_PUBLIC_KEY_ENCRYPT_ERROR);
675 0 : return (-1);
676 : }
677 : # ifdef PKCS1_CHECK
678 : if (s->options & SSL_OP_PKCS1_CHECK_1)
679 : d[1]++;
680 : if (s->options & SSL_OP_PKCS1_CHECK_2)
681 : sess->master_key[clear]++;
682 : # endif
683 0 : s2n(enc, p);
684 0 : d += enc;
685 0 : karg = sess->key_arg_length;
686 0 : s2n(karg, p); /* key arg size */
687 0 : if (karg > (int)sizeof(sess->key_arg)) {
688 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
689 0 : SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
690 0 : return -1;
691 : }
692 0 : memcpy(d, sess->key_arg, (unsigned int)karg);
693 0 : d += karg;
694 :
695 0 : s->state = SSL2_ST_SEND_CLIENT_MASTER_KEY_B;
696 0 : s->init_num = d - buf;
697 0 : s->init_off = 0;
698 : }
699 :
700 : /* SSL2_ST_SEND_CLIENT_MASTER_KEY_B */
701 0 : return (ssl2_do_write(s));
702 : }
703 :
704 0 : static int client_finished(SSL *s)
705 : {
706 : unsigned char *p;
707 :
708 0 : if (s->state == SSL2_ST_SEND_CLIENT_FINISHED_A) {
709 0 : p = (unsigned char *)s->init_buf->data;
710 0 : *(p++) = SSL2_MT_CLIENT_FINISHED;
711 0 : if (s->s2->conn_id_length > sizeof s->s2->conn_id) {
712 0 : SSLerr(SSL_F_CLIENT_FINISHED, ERR_R_INTERNAL_ERROR);
713 0 : return -1;
714 : }
715 0 : memcpy(p, s->s2->conn_id, (unsigned int)s->s2->conn_id_length);
716 :
717 0 : s->state = SSL2_ST_SEND_CLIENT_FINISHED_B;
718 0 : s->init_num = s->s2->conn_id_length + 1;
719 0 : s->init_off = 0;
720 : }
721 0 : return (ssl2_do_write(s));
722 : }
723 :
724 : /* read the data and then respond */
725 0 : static int client_certificate(SSL *s)
726 : {
727 : unsigned char *buf;
728 : unsigned char *p, *d;
729 : int i;
730 : unsigned int n;
731 : int cert_ch_len;
732 : unsigned char *cert_ch;
733 :
734 0 : buf = (unsigned char *)s->init_buf->data;
735 :
736 : /*
737 : * We have a cert associated with the SSL, so attach it to the session if
738 : * it does not have one
739 : */
740 :
741 0 : if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_A) {
742 0 : i = ssl2_read(s, (char *)&(buf[s->init_num]),
743 0 : SSL2_MAX_CERT_CHALLENGE_LENGTH + 2 - s->init_num);
744 0 : if (i < (SSL2_MIN_CERT_CHALLENGE_LENGTH + 2 - s->init_num))
745 0 : return (ssl2_part_read(s, SSL_F_CLIENT_CERTIFICATE, i));
746 0 : s->init_num += i;
747 0 : if (s->msg_callback) {
748 : /* REQUEST-CERTIFICATE */
749 0 : s->msg_callback(0, s->version, 0, buf, (size_t)s->init_num, s,
750 : s->msg_callback_arg);
751 : }
752 :
753 : /* type=buf[0]; */
754 : /* type eq x509 */
755 0 : if (buf[1] != SSL2_AT_MD5_WITH_RSA_ENCRYPTION) {
756 0 : ssl2_return_error(s, SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE);
757 0 : SSLerr(SSL_F_CLIENT_CERTIFICATE, SSL_R_BAD_AUTHENTICATION_TYPE);
758 0 : return (-1);
759 : }
760 :
761 0 : if ((s->cert == NULL) ||
762 0 : (s->cert->key->x509 == NULL) ||
763 0 : (s->cert->key->privatekey == NULL)) {
764 0 : s->state = SSL2_ST_X509_GET_CLIENT_CERTIFICATE;
765 : } else
766 0 : s->state = SSL2_ST_SEND_CLIENT_CERTIFICATE_C;
767 : }
768 :
769 0 : cert_ch = buf + 2;
770 0 : cert_ch_len = s->init_num - 2;
771 :
772 0 : if (s->state == SSL2_ST_X509_GET_CLIENT_CERTIFICATE) {
773 0 : X509 *x509 = NULL;
774 0 : EVP_PKEY *pkey = NULL;
775 :
776 : /*
777 : * If we get an error we need to ssl->rwstate=SSL_X509_LOOKUP;
778 : * return(error); We should then be retried when things are ok and we
779 : * can get a cert or not
780 : */
781 :
782 : i = 0;
783 0 : if (s->ctx->client_cert_cb != NULL) {
784 0 : i = s->ctx->client_cert_cb(s, &(x509), &(pkey));
785 : }
786 :
787 0 : if (i < 0) {
788 0 : s->rwstate = SSL_X509_LOOKUP;
789 0 : return (-1);
790 : }
791 0 : s->rwstate = SSL_NOTHING;
792 :
793 0 : if ((i == 1) && (pkey != NULL) && (x509 != NULL)) {
794 0 : s->state = SSL2_ST_SEND_CLIENT_CERTIFICATE_C;
795 0 : if (!SSL_use_certificate(s, x509) || !SSL_use_PrivateKey(s, pkey)) {
796 : i = 0;
797 : }
798 0 : X509_free(x509);
799 0 : EVP_PKEY_free(pkey);
800 0 : } else if (i == 1) {
801 0 : if (x509 != NULL)
802 0 : X509_free(x509);
803 0 : if (pkey != NULL)
804 0 : EVP_PKEY_free(pkey);
805 0 : SSLerr(SSL_F_CLIENT_CERTIFICATE,
806 : SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
807 : i = 0;
808 : }
809 :
810 0 : if (i == 0) {
811 : /*
812 : * We have no client certificate to respond with so send the
813 : * correct error message back
814 : */
815 0 : s->state = SSL2_ST_SEND_CLIENT_CERTIFICATE_B;
816 0 : p = buf;
817 0 : *(p++) = SSL2_MT_ERROR;
818 0 : s2n(SSL2_PE_NO_CERTIFICATE, p);
819 0 : s->init_off = 0;
820 0 : s->init_num = 3;
821 : /* Write is done at the end */
822 : }
823 : }
824 :
825 0 : if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_B) {
826 0 : return (ssl2_do_write(s));
827 : }
828 :
829 0 : if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_C) {
830 : EVP_MD_CTX ctx;
831 :
832 : /*
833 : * ok, now we calculate the checksum do it first so we can reuse buf
834 : * :-)
835 : */
836 0 : p = buf;
837 0 : EVP_MD_CTX_init(&ctx);
838 0 : EVP_SignInit_ex(&ctx, s->ctx->rsa_md5, NULL);
839 0 : EVP_SignUpdate(&ctx, s->s2->key_material, s->s2->key_material_length);
840 0 : EVP_SignUpdate(&ctx, cert_ch, (unsigned int)cert_ch_len);
841 0 : i = i2d_X509(s->session->sess_cert->peer_key->x509, &p);
842 : /*
843 : * Don't update the signature if it fails - FIXME: probably should
844 : * handle this better
845 : */
846 0 : if (i > 0)
847 0 : EVP_SignUpdate(&ctx, buf, (unsigned int)i);
848 :
849 0 : p = buf;
850 0 : d = p + 6;
851 0 : *(p++) = SSL2_MT_CLIENT_CERTIFICATE;
852 0 : *(p++) = SSL2_CT_X509_CERTIFICATE;
853 0 : n = i2d_X509(s->cert->key->x509, &d);
854 0 : s2n(n, p);
855 :
856 0 : if (!EVP_SignFinal(&ctx, d, &n, s->cert->key->privatekey)) {
857 : /*
858 : * this is not good. If things have failed it means there so
859 : * something wrong with the key. We will continue with a 0 length
860 : * signature
861 : */
862 : }
863 0 : EVP_MD_CTX_cleanup(&ctx);
864 0 : s2n(n, p);
865 0 : d += n;
866 :
867 0 : s->state = SSL2_ST_SEND_CLIENT_CERTIFICATE_D;
868 0 : s->init_num = d - buf;
869 0 : s->init_off = 0;
870 : }
871 : /* if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_D) */
872 0 : return (ssl2_do_write(s));
873 : }
874 :
875 0 : static int get_server_verify(SSL *s)
876 : {
877 : unsigned char *p;
878 : int i, n, len;
879 :
880 0 : p = (unsigned char *)s->init_buf->data;
881 0 : if (s->state == SSL2_ST_GET_SERVER_VERIFY_A) {
882 0 : i = ssl2_read(s, (char *)&(p[s->init_num]), 1 - s->init_num);
883 0 : if (i < (1 - s->init_num))
884 0 : return (ssl2_part_read(s, SSL_F_GET_SERVER_VERIFY, i));
885 0 : s->init_num += i;
886 :
887 0 : s->state = SSL2_ST_GET_SERVER_VERIFY_B;
888 0 : if (*p != SSL2_MT_SERVER_VERIFY) {
889 0 : if (p[0] != SSL2_MT_ERROR) {
890 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
891 0 : SSLerr(SSL_F_GET_SERVER_VERIFY, SSL_R_READ_WRONG_PACKET_TYPE);
892 : } else {
893 0 : SSLerr(SSL_F_GET_SERVER_VERIFY, SSL_R_PEER_ERROR);
894 : /* try to read the error message */
895 0 : i = ssl2_read(s, (char *)&(p[s->init_num]), 3 - s->init_num);
896 0 : return ssl2_part_read(s, SSL_F_GET_SERVER_VERIFY, i);
897 : }
898 0 : return (-1);
899 : }
900 : }
901 :
902 0 : p = (unsigned char *)s->init_buf->data;
903 0 : len = 1 + s->s2->challenge_length;
904 0 : n = len - s->init_num;
905 0 : i = ssl2_read(s, (char *)&(p[s->init_num]), n);
906 0 : if (i < n)
907 0 : return (ssl2_part_read(s, SSL_F_GET_SERVER_VERIFY, i));
908 0 : if (s->msg_callback) {
909 : /* SERVER-VERIFY */
910 0 : s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg);
911 : }
912 0 : p += 1;
913 :
914 0 : if (CRYPTO_memcmp(p, s->s2->challenge, s->s2->challenge_length) != 0) {
915 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
916 0 : SSLerr(SSL_F_GET_SERVER_VERIFY, SSL_R_CHALLENGE_IS_DIFFERENT);
917 0 : return (-1);
918 : }
919 : return (1);
920 : }
921 :
922 0 : static int get_server_finished(SSL *s)
923 : {
924 : unsigned char *buf;
925 : unsigned char *p;
926 : int i, n, len;
927 :
928 0 : buf = (unsigned char *)s->init_buf->data;
929 : p = buf;
930 0 : if (s->state == SSL2_ST_GET_SERVER_FINISHED_A) {
931 0 : i = ssl2_read(s, (char *)&(buf[s->init_num]), 1 - s->init_num);
932 0 : if (i < (1 - s->init_num))
933 0 : return (ssl2_part_read(s, SSL_F_GET_SERVER_FINISHED, i));
934 0 : s->init_num += i;
935 :
936 0 : if (*p == SSL2_MT_REQUEST_CERTIFICATE) {
937 0 : s->state = SSL2_ST_SEND_CLIENT_CERTIFICATE_A;
938 0 : return (1);
939 0 : } else if (*p != SSL2_MT_SERVER_FINISHED) {
940 0 : if (p[0] != SSL2_MT_ERROR) {
941 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
942 0 : SSLerr(SSL_F_GET_SERVER_FINISHED,
943 : SSL_R_READ_WRONG_PACKET_TYPE);
944 : } else {
945 0 : SSLerr(SSL_F_GET_SERVER_FINISHED, SSL_R_PEER_ERROR);
946 : /* try to read the error message */
947 0 : i = ssl2_read(s, (char *)&(p[s->init_num]), 3 - s->init_num);
948 0 : return ssl2_part_read(s, SSL_F_GET_SERVER_VERIFY, i);
949 : }
950 0 : return (-1);
951 : }
952 0 : s->state = SSL2_ST_GET_SERVER_FINISHED_B;
953 : }
954 :
955 : len = 1 + SSL2_SSL_SESSION_ID_LENGTH;
956 0 : n = len - s->init_num;
957 0 : i = ssl2_read(s, (char *)&(buf[s->init_num]), n);
958 0 : if (i < n) {
959 : /*
960 : * XXX could be shorter than SSL2_SSL_SESSION_ID_LENGTH,
961 : * that's the maximum
962 : */
963 0 : return (ssl2_part_read(s, SSL_F_GET_SERVER_FINISHED, i));
964 : }
965 0 : s->init_num += i;
966 0 : if (s->msg_callback) {
967 : /* SERVER-FINISHED */
968 0 : s->msg_callback(0, s->version, 0, buf, (size_t)s->init_num, s,
969 : s->msg_callback_arg);
970 : }
971 :
972 0 : if (!s->hit) { /* new session */
973 : /* new session-id */
974 : /*
975 : * Make sure we were not trying to re-use an old SSL_SESSION or bad
976 : * things can happen
977 : */
978 : /* ZZZZZZZZZZZZZ */
979 0 : s->session->session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
980 0 : memcpy(s->session->session_id, p + 1, SSL2_SSL_SESSION_ID_LENGTH);
981 : } else {
982 0 : if (!(s->options & SSL_OP_MICROSOFT_SESS_ID_BUG)) {
983 0 : if ((s->session->session_id_length >
984 : sizeof s->session->session_id)
985 0 : || (0 !=
986 0 : memcmp(buf + 1, s->session->session_id,
987 : (unsigned int)s->session->session_id_length))) {
988 0 : ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
989 0 : SSLerr(SSL_F_GET_SERVER_FINISHED,
990 : SSL_R_SSL_SESSION_ID_IS_DIFFERENT);
991 0 : return (-1);
992 : }
993 : }
994 : }
995 0 : s->state = SSL_ST_OK;
996 0 : return (1);
997 : }
998 :
999 : /* loads in the certificate from the server */
1000 0 : int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data)
1001 : {
1002 : STACK_OF(X509) *sk = NULL;
1003 : EVP_PKEY *pkey = NULL;
1004 : SESS_CERT *sc = NULL;
1005 : int i;
1006 : X509 *x509 = NULL;
1007 : int ret = 0;
1008 :
1009 0 : x509 = d2i_X509(NULL, &data, (long)len);
1010 0 : if (x509 == NULL) {
1011 0 : SSLerr(SSL_F_SSL2_SET_CERTIFICATE, ERR_R_X509_LIB);
1012 0 : goto err;
1013 : }
1014 :
1015 0 : if ((sk = sk_X509_new_null()) == NULL || !sk_X509_push(sk, x509)) {
1016 0 : SSLerr(SSL_F_SSL2_SET_CERTIFICATE, ERR_R_MALLOC_FAILURE);
1017 0 : goto err;
1018 : }
1019 :
1020 0 : i = ssl_verify_cert_chain(s, sk);
1021 :
1022 0 : if ((s->verify_mode != SSL_VERIFY_NONE) && (i <= 0)) {
1023 0 : SSLerr(SSL_F_SSL2_SET_CERTIFICATE, SSL_R_CERTIFICATE_VERIFY_FAILED);
1024 0 : goto err;
1025 : }
1026 0 : ERR_clear_error(); /* but we keep s->verify_result */
1027 0 : s->session->verify_result = s->verify_result;
1028 :
1029 : /* server's cert for this session */
1030 0 : sc = ssl_sess_cert_new();
1031 0 : if (sc == NULL) {
1032 : ret = -1;
1033 : goto err;
1034 : }
1035 0 : if (s->session->sess_cert)
1036 0 : ssl_sess_cert_free(s->session->sess_cert);
1037 0 : s->session->sess_cert = sc;
1038 :
1039 0 : sc->peer_pkeys[SSL_PKEY_RSA_ENC].x509 = x509;
1040 0 : sc->peer_key = &(sc->peer_pkeys[SSL_PKEY_RSA_ENC]);
1041 :
1042 0 : pkey = X509_get_pubkey(x509);
1043 : x509 = NULL;
1044 0 : if (pkey == NULL) {
1045 0 : SSLerr(SSL_F_SSL2_SET_CERTIFICATE,
1046 : SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY);
1047 0 : goto err;
1048 : }
1049 0 : if (pkey->type != EVP_PKEY_RSA) {
1050 0 : SSLerr(SSL_F_SSL2_SET_CERTIFICATE, SSL_R_PUBLIC_KEY_NOT_RSA);
1051 0 : goto err;
1052 : }
1053 :
1054 0 : if (!ssl_set_peer_cert_type(sc, SSL2_CT_X509_CERTIFICATE))
1055 : goto err;
1056 : ret = 1;
1057 : err:
1058 0 : sk_X509_free(sk);
1059 0 : X509_free(x509);
1060 0 : EVP_PKEY_free(pkey);
1061 0 : return (ret);
1062 : }
1063 :
1064 0 : static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from,
1065 : unsigned char *to, int padding)
1066 : {
1067 : EVP_PKEY *pkey = NULL;
1068 : int i = -1;
1069 :
1070 0 : if ((sc == NULL) || (sc->peer_key->x509 == NULL) ||
1071 : ((pkey = X509_get_pubkey(sc->peer_key->x509)) == NULL)) {
1072 0 : SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT, SSL_R_NO_PUBLICKEY);
1073 0 : return (-1);
1074 : }
1075 0 : if (pkey->type != EVP_PKEY_RSA) {
1076 0 : SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT, SSL_R_PUBLIC_KEY_IS_NOT_RSA);
1077 0 : goto end;
1078 : }
1079 :
1080 : /* we have the public key */
1081 0 : i = RSA_public_encrypt(len, from, to, pkey->pkey.rsa, padding);
1082 0 : if (i < 0)
1083 0 : SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT, ERR_R_RSA_LIB);
1084 : end:
1085 0 : EVP_PKEY_free(pkey);
1086 0 : return (i);
1087 : }
1088 : #else /* !OPENSSL_NO_SSL2 */
1089 :
1090 : # if PEDANTIC
1091 : static void *dummy = &dummy;
1092 : # endif
1093 :
1094 : #endif
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