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d02b48c6 | 1 | /* ssl/s3_clnt.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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> | |
ec577822 BM |
60 | #include <openssl/buffer.h> |
61 | #include <openssl/rand.h> | |
62 | #include <openssl/objects.h> | |
63 | #include <openssl/evp.h> | |
d02b48c6 RE |
64 | #include "ssl_locl.h" |
65 | ||
bc36ee62 | 66 | #ifndef OPENSSL_NO_KRB5 |
2a96235b | 67 | #include "kssl_lcl.h" |
f9b3bff6 RL |
68 | #endif |
69 | ||
9b3086fe | 70 | static SSL_METHOD *ssl3_get_client_method(int ver); |
d02b48c6 RE |
71 | static int ssl3_client_hello(SSL *s); |
72 | static int ssl3_get_server_hello(SSL *s); | |
73 | static int ssl3_get_certificate_request(SSL *s); | |
ccd86b68 | 74 | static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b); |
d02b48c6 RE |
75 | static int ssl3_get_server_done(SSL *s); |
76 | static int ssl3_send_client_verify(SSL *s); | |
77 | static int ssl3_send_client_certificate(SSL *s); | |
78 | static int ssl3_send_client_key_exchange(SSL *s); | |
79 | static int ssl3_get_key_exchange(SSL *s); | |
80 | static int ssl3_get_server_certificate(SSL *s); | |
81 | static int ssl3_check_cert_and_algorithm(SSL *s); | |
6b691a5c | 82 | static SSL_METHOD *ssl3_get_client_method(int ver) |
d02b48c6 | 83 | { |
58964a49 | 84 | if (ver == SSL3_VERSION) |
d02b48c6 RE |
85 | return(SSLv3_client_method()); |
86 | else | |
87 | return(NULL); | |
88 | } | |
89 | ||
6b691a5c | 90 | SSL_METHOD *SSLv3_client_method(void) |
d02b48c6 RE |
91 | { |
92 | static int init=1; | |
93 | static SSL_METHOD SSLv3_client_data; | |
94 | ||
95 | if (init) | |
96 | { | |
97 | init=0; | |
98 | memcpy((char *)&SSLv3_client_data,(char *)sslv3_base_method(), | |
99 | sizeof(SSL_METHOD)); | |
100 | SSLv3_client_data.ssl_connect=ssl3_connect; | |
101 | SSLv3_client_data.get_ssl_method=ssl3_get_client_method; | |
102 | } | |
103 | return(&SSLv3_client_data); | |
104 | } | |
105 | ||
6b691a5c | 106 | int ssl3_connect(SSL *s) |
d02b48c6 RE |
107 | { |
108 | BUF_MEM *buf; | |
109 | unsigned long Time=time(NULL),l; | |
110 | long num1; | |
111 | void (*cb)()=NULL; | |
112 | int ret= -1; | |
d02b48c6 RE |
113 | int new_state,state,skip=0;; |
114 | ||
eb952088 | 115 | RAND_add(&Time,sizeof(Time),0); |
d02b48c6 | 116 | ERR_clear_error(); |
58964a49 | 117 | clear_sys_error(); |
d02b48c6 RE |
118 | |
119 | if (s->info_callback != NULL) | |
120 | cb=s->info_callback; | |
121 | else if (s->ctx->info_callback != NULL) | |
122 | cb=s->ctx->info_callback; | |
123 | ||
124 | if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); | |
125 | s->in_handshake++; | |
126 | ||
127 | for (;;) | |
128 | { | |
129 | state=s->state; | |
130 | ||
131 | switch(s->state) | |
132 | { | |
133 | case SSL_ST_RENEGOTIATE: | |
134 | s->new_session=1; | |
135 | s->state=SSL_ST_CONNECT; | |
413c4f45 | 136 | s->ctx->stats.sess_connect_renegotiate++; |
d02b48c6 RE |
137 | /* break */ |
138 | case SSL_ST_BEFORE: | |
139 | case SSL_ST_CONNECT: | |
140 | case SSL_ST_BEFORE|SSL_ST_CONNECT: | |
141 | case SSL_ST_OK|SSL_ST_CONNECT: | |
142 | ||
413c4f45 | 143 | s->server=0; |
d02b48c6 RE |
144 | if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); |
145 | ||
58964a49 | 146 | if ((s->version & 0xff00 ) != 0x0300) |
bbb8de09 | 147 | { |
5277d7cb | 148 | SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR); |
bbb8de09 BM |
149 | ret = -1; |
150 | goto end; | |
151 | } | |
152 | ||
58964a49 | 153 | /* s->version=SSL3_VERSION; */ |
d02b48c6 RE |
154 | s->type=SSL_ST_CONNECT; |
155 | ||
156 | if (s->init_buf == NULL) | |
157 | { | |
158 | if ((buf=BUF_MEM_new()) == NULL) | |
159 | { | |
160 | ret= -1; | |
161 | goto end; | |
162 | } | |
163 | if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) | |
164 | { | |
165 | ret= -1; | |
166 | goto end; | |
167 | } | |
168 | s->init_buf=buf; | |
169 | } | |
170 | ||
171 | if (!ssl3_setup_buffers(s)) { ret= -1; goto end; } | |
172 | ||
173 | /* setup buffing BIO */ | |
58964a49 | 174 | if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; } |
d02b48c6 RE |
175 | |
176 | /* don't push the buffering BIO quite yet */ | |
177 | ||
178 | ssl3_init_finished_mac(s); | |
179 | ||
180 | s->state=SSL3_ST_CW_CLNT_HELLO_A; | |
413c4f45 | 181 | s->ctx->stats.sess_connect++; |
d02b48c6 RE |
182 | s->init_num=0; |
183 | break; | |
184 | ||
185 | case SSL3_ST_CW_CLNT_HELLO_A: | |
186 | case SSL3_ST_CW_CLNT_HELLO_B: | |
187 | ||
188 | s->shutdown=0; | |
189 | ret=ssl3_client_hello(s); | |
190 | if (ret <= 0) goto end; | |
191 | s->state=SSL3_ST_CR_SRVR_HELLO_A; | |
192 | s->init_num=0; | |
193 | ||
194 | /* turn on buffering for the next lot of output */ | |
58964a49 RE |
195 | if (s->bbio != s->wbio) |
196 | s->wbio=BIO_push(s->bbio,s->wbio); | |
d02b48c6 RE |
197 | |
198 | break; | |
199 | ||
200 | case SSL3_ST_CR_SRVR_HELLO_A: | |
201 | case SSL3_ST_CR_SRVR_HELLO_B: | |
202 | ret=ssl3_get_server_hello(s); | |
203 | if (ret <= 0) goto end; | |
204 | if (s->hit) | |
205 | s->state=SSL3_ST_CR_FINISHED_A; | |
206 | else | |
207 | s->state=SSL3_ST_CR_CERT_A; | |
208 | s->init_num=0; | |
209 | break; | |
210 | ||
211 | case SSL3_ST_CR_CERT_A: | |
212 | case SSL3_ST_CR_CERT_B: | |
213 | /* Check if it is anon DH */ | |
214 | if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) | |
215 | { | |
216 | ret=ssl3_get_server_certificate(s); | |
217 | if (ret <= 0) goto end; | |
218 | } | |
219 | else | |
220 | skip=1; | |
221 | s->state=SSL3_ST_CR_KEY_EXCH_A; | |
222 | s->init_num=0; | |
223 | break; | |
224 | ||
225 | case SSL3_ST_CR_KEY_EXCH_A: | |
226 | case SSL3_ST_CR_KEY_EXCH_B: | |
227 | ret=ssl3_get_key_exchange(s); | |
228 | if (ret <= 0) goto end; | |
229 | s->state=SSL3_ST_CR_CERT_REQ_A; | |
230 | s->init_num=0; | |
231 | ||
232 | /* at this point we check that we have the | |
233 | * required stuff from the server */ | |
234 | if (!ssl3_check_cert_and_algorithm(s)) | |
235 | { | |
236 | ret= -1; | |
237 | goto end; | |
238 | } | |
239 | break; | |
240 | ||
241 | case SSL3_ST_CR_CERT_REQ_A: | |
242 | case SSL3_ST_CR_CERT_REQ_B: | |
243 | ret=ssl3_get_certificate_request(s); | |
244 | if (ret <= 0) goto end; | |
245 | s->state=SSL3_ST_CR_SRVR_DONE_A; | |
246 | s->init_num=0; | |
247 | break; | |
248 | ||
249 | case SSL3_ST_CR_SRVR_DONE_A: | |
250 | case SSL3_ST_CR_SRVR_DONE_B: | |
251 | ret=ssl3_get_server_done(s); | |
252 | if (ret <= 0) goto end; | |
253 | if (s->s3->tmp.cert_req) | |
254 | s->state=SSL3_ST_CW_CERT_A; | |
255 | else | |
256 | s->state=SSL3_ST_CW_KEY_EXCH_A; | |
257 | s->init_num=0; | |
258 | ||
259 | break; | |
260 | ||
261 | case SSL3_ST_CW_CERT_A: | |
262 | case SSL3_ST_CW_CERT_B: | |
263 | case SSL3_ST_CW_CERT_C: | |
95d29597 | 264 | case SSL3_ST_CW_CERT_D: |
d02b48c6 RE |
265 | ret=ssl3_send_client_certificate(s); |
266 | if (ret <= 0) goto end; | |
267 | s->state=SSL3_ST_CW_KEY_EXCH_A; | |
268 | s->init_num=0; | |
269 | break; | |
270 | ||
271 | case SSL3_ST_CW_KEY_EXCH_A: | |
272 | case SSL3_ST_CW_KEY_EXCH_B: | |
273 | ret=ssl3_send_client_key_exchange(s); | |
274 | if (ret <= 0) goto end; | |
275 | l=s->s3->tmp.new_cipher->algorithms; | |
276 | /* EAY EAY EAY need to check for DH fix cert | |
277 | * sent back */ | |
58964a49 RE |
278 | /* For TLS, cert_req is set to 2, so a cert chain |
279 | * of nothing is sent, but no verify packet is sent */ | |
280 | if (s->s3->tmp.cert_req == 1) | |
d02b48c6 RE |
281 | { |
282 | s->state=SSL3_ST_CW_CERT_VRFY_A; | |
283 | } | |
284 | else | |
285 | { | |
286 | s->state=SSL3_ST_CW_CHANGE_A; | |
287 | s->s3->change_cipher_spec=0; | |
288 | } | |
289 | ||
290 | s->init_num=0; | |
291 | break; | |
292 | ||
293 | case SSL3_ST_CW_CERT_VRFY_A: | |
294 | case SSL3_ST_CW_CERT_VRFY_B: | |
295 | ret=ssl3_send_client_verify(s); | |
296 | if (ret <= 0) goto end; | |
297 | s->state=SSL3_ST_CW_CHANGE_A; | |
298 | s->init_num=0; | |
299 | s->s3->change_cipher_spec=0; | |
300 | break; | |
301 | ||
302 | case SSL3_ST_CW_CHANGE_A: | |
303 | case SSL3_ST_CW_CHANGE_B: | |
304 | ret=ssl3_send_change_cipher_spec(s, | |
305 | SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B); | |
306 | if (ret <= 0) goto end; | |
307 | s->state=SSL3_ST_CW_FINISHED_A; | |
308 | s->init_num=0; | |
309 | ||
310 | s->session->cipher=s->s3->tmp.new_cipher; | |
413c4f45 MC |
311 | if (s->s3->tmp.new_compression == NULL) |
312 | s->session->compress_meth=0; | |
313 | else | |
314 | s->session->compress_meth= | |
315 | s->s3->tmp.new_compression->id; | |
58964a49 | 316 | if (!s->method->ssl3_enc->setup_key_block(s)) |
d02b48c6 RE |
317 | { |
318 | ret= -1; | |
319 | goto end; | |
320 | } | |
321 | ||
58964a49 | 322 | if (!s->method->ssl3_enc->change_cipher_state(s, |
d02b48c6 RE |
323 | SSL3_CHANGE_CIPHER_CLIENT_WRITE)) |
324 | { | |
325 | ret= -1; | |
326 | goto end; | |
327 | } | |
328 | ||
329 | break; | |
330 | ||
331 | case SSL3_ST_CW_FINISHED_A: | |
332 | case SSL3_ST_CW_FINISHED_B: | |
333 | ret=ssl3_send_finished(s, | |
334 | SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B, | |
c44f7540 BM |
335 | s->method->ssl3_enc->client_finished_label, |
336 | s->method->ssl3_enc->client_finished_label_len); | |
d02b48c6 RE |
337 | if (ret <= 0) goto end; |
338 | s->state=SSL3_ST_CW_FLUSH; | |
339 | ||
340 | /* clear flags */ | |
341 | s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER; | |
342 | if (s->hit) | |
343 | { | |
344 | s->s3->tmp.next_state=SSL_ST_OK; | |
345 | if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED) | |
346 | { | |
347 | s->state=SSL_ST_OK; | |
348 | s->s3->flags|=SSL3_FLAGS_POP_BUFFER; | |
349 | s->s3->delay_buf_pop_ret=0; | |
350 | } | |
351 | } | |
352 | else | |
353 | { | |
354 | s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A; | |
355 | } | |
356 | s->init_num=0; | |
357 | break; | |
358 | ||
359 | case SSL3_ST_CR_FINISHED_A: | |
360 | case SSL3_ST_CR_FINISHED_B: | |
361 | ||
362 | ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A, | |
58964a49 | 363 | SSL3_ST_CR_FINISHED_B); |
d02b48c6 RE |
364 | if (ret <= 0) goto end; |
365 | ||
366 | if (s->hit) | |
367 | s->state=SSL3_ST_CW_CHANGE_A; | |
368 | else | |
369 | s->state=SSL_ST_OK; | |
370 | s->init_num=0; | |
371 | break; | |
372 | ||
373 | case SSL3_ST_CW_FLUSH: | |
374 | /* number of bytes to be flushed */ | |
375 | num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL); | |
376 | if (num1 > 0) | |
377 | { | |
378 | s->rwstate=SSL_WRITING; | |
379 | num1=BIO_flush(s->wbio); | |
380 | if (num1 <= 0) { ret= -1; goto end; } | |
381 | s->rwstate=SSL_NOTHING; | |
382 | } | |
383 | ||
384 | s->state=s->s3->tmp.next_state; | |
385 | break; | |
386 | ||
387 | case SSL_ST_OK: | |
388 | /* clean a few things up */ | |
389 | ssl3_cleanup_key_block(s); | |
390 | ||
413c4f45 | 391 | if (s->init_buf != NULL) |
d02b48c6 | 392 | { |
413c4f45 MC |
393 | BUF_MEM_free(s->init_buf); |
394 | s->init_buf=NULL; | |
d02b48c6 | 395 | } |
413c4f45 MC |
396 | |
397 | /* If we are not 'joining' the last two packets, | |
398 | * remove the buffering now */ | |
399 | if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER)) | |
400 | ssl_free_wbio_buffer(s); | |
401 | /* else do it later in ssl3_write */ | |
d02b48c6 RE |
402 | |
403 | s->init_num=0; | |
404 | s->new_session=0; | |
405 | ||
406 | ssl_update_cache(s,SSL_SESS_CACHE_CLIENT); | |
413c4f45 | 407 | if (s->hit) s->ctx->stats.sess_hit++; |
d02b48c6 RE |
408 | |
409 | ret=1; | |
410 | /* s->server=0; */ | |
411 | s->handshake_func=ssl3_connect; | |
413c4f45 | 412 | s->ctx->stats.sess_connect_good++; |
d02b48c6 RE |
413 | |
414 | if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); | |
415 | ||
416 | goto end; | |
dfeab068 | 417 | /* break; */ |
d02b48c6 RE |
418 | |
419 | default: | |
420 | SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE); | |
421 | ret= -1; | |
422 | goto end; | |
423 | /* break; */ | |
424 | } | |
425 | ||
426 | /* did we do anything */ | |
427 | if (!s->s3->tmp.reuse_message && !skip) | |
428 | { | |
58964a49 RE |
429 | if (s->debug) |
430 | { | |
431 | if ((ret=BIO_flush(s->wbio)) <= 0) | |
432 | goto end; | |
433 | } | |
d02b48c6 RE |
434 | |
435 | if ((cb != NULL) && (s->state != state)) | |
436 | { | |
437 | new_state=s->state; | |
438 | s->state=state; | |
439 | cb(s,SSL_CB_CONNECT_LOOP,1); | |
440 | s->state=new_state; | |
441 | } | |
442 | } | |
443 | skip=0; | |
444 | } | |
445 | end: | |
446 | if (cb != NULL) | |
447 | cb(s,SSL_CB_CONNECT_EXIT,ret); | |
448 | s->in_handshake--; | |
449 | return(ret); | |
450 | } | |
451 | ||
452 | ||
6b691a5c | 453 | static int ssl3_client_hello(SSL *s) |
d02b48c6 RE |
454 | { |
455 | unsigned char *buf; | |
456 | unsigned char *p,*d; | |
413c4f45 | 457 | int i,j; |
d02b48c6 | 458 | unsigned long Time,l; |
413c4f45 | 459 | SSL_COMP *comp; |
d02b48c6 RE |
460 | |
461 | buf=(unsigned char *)s->init_buf->data; | |
462 | if (s->state == SSL3_ST_CW_CLNT_HELLO_A) | |
463 | { | |
464 | if ((s->session == NULL) || | |
dfeab068 RE |
465 | (s->session->ssl_version != s->version) || |
466 | (s->session->not_resumable)) | |
d02b48c6 RE |
467 | { |
468 | if (!ssl_get_new_session(s,0)) | |
469 | goto err; | |
470 | } | |
471 | /* else use the pre-loaded session */ | |
472 | ||
473 | p=s->s3->client_random; | |
474 | Time=time(NULL); /* Time */ | |
475 | l2n(Time,p); | |
e7f97e2d | 476 | RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time)); |
d02b48c6 RE |
477 | |
478 | /* Do the message type and length last */ | |
479 | d=p= &(buf[4]); | |
480 | ||
58964a49 RE |
481 | *(p++)=s->version>>8; |
482 | *(p++)=s->version&0xff; | |
413c4f45 | 483 | s->client_version=s->version; |
d02b48c6 RE |
484 | |
485 | /* Random stuff */ | |
486 | memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE); | |
487 | p+=SSL3_RANDOM_SIZE; | |
488 | ||
489 | /* Session ID */ | |
490 | if (s->new_session) | |
491 | i=0; | |
492 | else | |
493 | i=s->session->session_id_length; | |
494 | *(p++)=i; | |
495 | if (i != 0) | |
496 | { | |
497 | memcpy(p,s->session->session_id,i); | |
498 | p+=i; | |
499 | } | |
500 | ||
501 | /* Ciphers supported */ | |
502 | i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2])); | |
503 | if (i == 0) | |
504 | { | |
505 | SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); | |
506 | goto err; | |
507 | } | |
508 | s2n(i,p); | |
509 | p+=i; | |
510 | ||
dfeab068 | 511 | /* COMPRESSION */ |
413c4f45 MC |
512 | if (s->ctx->comp_methods == NULL) |
513 | j=0; | |
514 | else | |
f73e07cf | 515 | j=sk_SSL_COMP_num(s->ctx->comp_methods); |
413c4f45 MC |
516 | *(p++)=1+j; |
517 | for (i=0; i<j; i++) | |
518 | { | |
f73e07cf | 519 | comp=sk_SSL_COMP_value(s->ctx->comp_methods,i); |
413c4f45 MC |
520 | *(p++)=comp->id; |
521 | } | |
522 | *(p++)=0; /* Add the NULL method */ | |
d02b48c6 RE |
523 | |
524 | l=(p-d); | |
525 | d=buf; | |
526 | *(d++)=SSL3_MT_CLIENT_HELLO; | |
527 | l2n3(l,d); | |
528 | ||
529 | s->state=SSL3_ST_CW_CLNT_HELLO_B; | |
530 | /* number of bytes to write */ | |
531 | s->init_num=p-buf; | |
532 | s->init_off=0; | |
533 | } | |
534 | ||
535 | /* SSL3_ST_CW_CLNT_HELLO_B */ | |
536 | return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); | |
537 | err: | |
538 | return(-1); | |
539 | } | |
540 | ||
6b691a5c | 541 | static int ssl3_get_server_hello(SSL *s) |
d02b48c6 | 542 | { |
f73e07cf | 543 | STACK_OF(SSL_CIPHER) *sk; |
d02b48c6 RE |
544 | SSL_CIPHER *c; |
545 | unsigned char *p,*d; | |
546 | int i,al,ok; | |
547 | unsigned int j; | |
548 | long n; | |
413c4f45 | 549 | SSL_COMP *comp; |
d02b48c6 RE |
550 | |
551 | n=ssl3_get_message(s, | |
552 | SSL3_ST_CR_SRVR_HELLO_A, | |
553 | SSL3_ST_CR_SRVR_HELLO_B, | |
554 | SSL3_MT_SERVER_HELLO, | |
555 | 300, /* ?? */ | |
556 | &ok); | |
557 | ||
558 | if (!ok) return((int)n); | |
559 | d=p=(unsigned char *)s->init_buf->data; | |
560 | ||
58964a49 | 561 | if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff))) |
d02b48c6 RE |
562 | { |
563 | SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION); | |
58964a49 RE |
564 | s->version=(s->version&0xff00)|p[1]; |
565 | al=SSL_AD_PROTOCOL_VERSION; | |
566 | goto f_err; | |
d02b48c6 RE |
567 | } |
568 | p+=2; | |
569 | ||
570 | /* load the server hello data */ | |
571 | /* load the server random */ | |
572 | memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE); | |
573 | p+=SSL3_RANDOM_SIZE; | |
574 | ||
575 | /* get the session-id */ | |
576 | j= *(p++); | |
577 | ||
578 | if ((j != 0) && (j != SSL3_SESSION_ID_SIZE)) | |
579 | { | |
580 | /* SSLref returns 16 :-( */ | |
581 | if (j < SSL2_SSL_SESSION_ID_LENGTH) | |
582 | { | |
58964a49 | 583 | al=SSL_AD_ILLEGAL_PARAMETER; |
d02b48c6 RE |
584 | SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_SHORT); |
585 | goto f_err; | |
586 | } | |
587 | } | |
b4cadc6e BL |
588 | if (j != 0 && j == s->session->session_id_length |
589 | && memcmp(p,s->session->session_id,j) == 0) | |
590 | { | |
591 | if(s->sid_ctx_length != s->session->sid_ctx_length | |
592 | || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length)) | |
593 | { | |
594 | al=SSL_AD_ILLEGAL_PARAMETER; | |
595 | SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT); | |
596 | goto f_err; | |
597 | } | |
598 | s->hit=1; | |
599 | } | |
58964a49 | 600 | else /* a miss or crap from the other end */ |
d02b48c6 | 601 | { |
58964a49 RE |
602 | /* If we were trying for session-id reuse, make a new |
603 | * SSL_SESSION so we don't stuff up other people */ | |
d02b48c6 | 604 | s->hit=0; |
58964a49 RE |
605 | if (s->session->session_id_length > 0) |
606 | { | |
607 | if (!ssl_get_new_session(s,0)) | |
608 | { | |
609 | al=SSL_AD_INTERNAL_ERROR; | |
610 | goto f_err; | |
611 | } | |
612 | } | |
613 | s->session->session_id_length=j; | |
614 | memcpy(s->session->session_id,p,j); /* j could be 0 */ | |
d02b48c6 RE |
615 | } |
616 | p+=j; | |
617 | c=ssl_get_cipher_by_char(s,p); | |
618 | if (c == NULL) | |
619 | { | |
620 | /* unknown cipher */ | |
58964a49 | 621 | al=SSL_AD_ILLEGAL_PARAMETER; |
d02b48c6 RE |
622 | SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED); |
623 | goto f_err; | |
624 | } | |
625 | p+=ssl_put_cipher_by_char(s,NULL,NULL); | |
626 | ||
627 | sk=ssl_get_ciphers_by_id(s); | |
f73e07cf | 628 | i=sk_SSL_CIPHER_find(sk,c); |
d02b48c6 RE |
629 | if (i < 0) |
630 | { | |
631 | /* we did not say we would use this cipher */ | |
58964a49 | 632 | al=SSL_AD_ILLEGAL_PARAMETER; |
d02b48c6 RE |
633 | SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED); |
634 | goto f_err; | |
635 | } | |
636 | ||
637 | if (s->hit && (s->session->cipher != c)) | |
638 | { | |
58964a49 | 639 | if (!(s->options & |
d02b48c6 RE |
640 | SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG)) |
641 | { | |
58964a49 | 642 | al=SSL_AD_ILLEGAL_PARAMETER; |
d02b48c6 RE |
643 | SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED); |
644 | goto f_err; | |
645 | } | |
646 | } | |
647 | s->s3->tmp.new_cipher=c; | |
648 | ||
649 | /* lets get the compression algorithm */ | |
dfeab068 | 650 | /* COMPRESSION */ |
d02b48c6 | 651 | j= *(p++); |
413c4f45 MC |
652 | if (j == 0) |
653 | comp=NULL; | |
654 | else | |
655 | comp=ssl3_comp_find(s->ctx->comp_methods,j); | |
656 | ||
657 | if ((j != 0) && (comp == NULL)) | |
d02b48c6 | 658 | { |
58964a49 | 659 | al=SSL_AD_ILLEGAL_PARAMETER; |
d02b48c6 RE |
660 | SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM); |
661 | goto f_err; | |
662 | } | |
413c4f45 MC |
663 | else |
664 | { | |
665 | s->s3->tmp.new_compression=comp; | |
666 | } | |
d02b48c6 RE |
667 | |
668 | if (p != (d+n)) | |
669 | { | |
670 | /* wrong packet length */ | |
58964a49 | 671 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
672 | SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH); |
673 | goto err; | |
674 | } | |
675 | ||
676 | return(1); | |
677 | f_err: | |
678 | ssl3_send_alert(s,SSL3_AL_FATAL,al); | |
679 | err: | |
680 | return(-1); | |
681 | } | |
682 | ||
6b691a5c | 683 | static int ssl3_get_server_certificate(SSL *s) |
d02b48c6 RE |
684 | { |
685 | int al,i,ok,ret= -1; | |
686 | unsigned long n,nc,llen,l; | |
687 | X509 *x=NULL; | |
688 | unsigned char *p,*d,*q; | |
f73e07cf | 689 | STACK_OF(X509) *sk=NULL; |
b56bce4f | 690 | SESS_CERT *sc; |
d02b48c6 | 691 | EVP_PKEY *pkey=NULL; |
f9b3bff6 | 692 | int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */ |
d02b48c6 RE |
693 | |
694 | n=ssl3_get_message(s, | |
695 | SSL3_ST_CR_CERT_A, | |
696 | SSL3_ST_CR_CERT_B, | |
697 | -1, | |
bc36ee62 | 698 | #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32) |
d02b48c6 RE |
699 | 1024*30, /* 30k max cert list :-) */ |
700 | #else | |
701 | 1024*100, /* 100k max cert list :-) */ | |
702 | #endif | |
703 | &ok); | |
704 | ||
705 | if (!ok) return((int)n); | |
706 | ||
707 | if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE) | |
708 | { | |
709 | s->s3->tmp.reuse_message=1; | |
710 | return(1); | |
711 | } | |
712 | ||
713 | if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE) | |
714 | { | |
58964a49 | 715 | al=SSL_AD_UNEXPECTED_MESSAGE; |
d02b48c6 RE |
716 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE); |
717 | goto f_err; | |
718 | } | |
719 | d=p=(unsigned char *)s->init_buf->data; | |
720 | ||
f73e07cf | 721 | if ((sk=sk_X509_new_null()) == NULL) |
d02b48c6 RE |
722 | { |
723 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE); | |
724 | goto err; | |
725 | } | |
726 | ||
727 | n2l3(p,llen); | |
728 | if (llen+3 != n) | |
729 | { | |
58964a49 | 730 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
731 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH); |
732 | goto f_err; | |
733 | } | |
734 | for (nc=0; nc<llen; ) | |
735 | { | |
736 | n2l3(p,l); | |
737 | if ((l+nc+3) > llen) | |
738 | { | |
58964a49 | 739 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
740 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH); |
741 | goto f_err; | |
742 | } | |
743 | ||
744 | q=p; | |
745 | x=d2i_X509(NULL,&q,l); | |
746 | if (x == NULL) | |
747 | { | |
58964a49 | 748 | al=SSL_AD_BAD_CERTIFICATE; |
d02b48c6 RE |
749 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB); |
750 | goto f_err; | |
751 | } | |
752 | if (q != (p+l)) | |
753 | { | |
58964a49 | 754 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
755 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH); |
756 | goto f_err; | |
757 | } | |
f73e07cf | 758 | if (!sk_X509_push(sk,x)) |
d02b48c6 RE |
759 | { |
760 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE); | |
761 | goto err; | |
762 | } | |
763 | x=NULL; | |
764 | nc+=l+3; | |
765 | p=q; | |
766 | } | |
767 | ||
768 | i=ssl_verify_cert_chain(s,sk); | |
82d5d46c RL |
769 | if ((s->verify_mode != SSL_VERIFY_NONE) && (!i) |
770 | #ifndef OPENSSL_NO_KRB5 | |
771 | && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK)) | |
772 | != (SSL_aKRB5|SSL_kKRB5) | |
773 | #endif /* OPENSSL_NO_KRB5 */ | |
774 | ) | |
d02b48c6 RE |
775 | { |
776 | al=ssl_verify_alarm_type(s->verify_result); | |
777 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED); | |
778 | goto f_err; | |
779 | } | |
1fab73ac | 780 | ERR_clear_error(); /* but we keep s->verify_result */ |
d02b48c6 | 781 | |
b56bce4f BM |
782 | sc=ssl_sess_cert_new(); |
783 | if (sc == NULL) goto err; | |
d02b48c6 | 784 | |
b56bce4f BM |
785 | if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert); |
786 | s->session->sess_cert=sc; | |
d02b48c6 | 787 | |
b56bce4f | 788 | sc->cert_chain=sk; |
98e04f9e BM |
789 | /* Inconsistency alert: cert_chain does include the peer's |
790 | * certificate, which we don't include in s3_srvr.c */ | |
f73e07cf | 791 | x=sk_X509_value(sk,0); |
d02b48c6 | 792 | sk=NULL; |
2a1ef754 | 793 | /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/ |
d02b48c6 RE |
794 | |
795 | pkey=X509_get_pubkey(x); | |
796 | ||
f9b3bff6 | 797 | /* VRS: allow null cert if auth == KRB5 */ |
2a1ef754 RL |
798 | need_cert = ((s->s3->tmp.new_cipher->algorithms |
799 | & (SSL_MKEY_MASK|SSL_AUTH_MASK)) | |
f9b3bff6 RL |
800 | == (SSL_aKRB5|SSL_kKRB5))? 0: 1; |
801 | ||
802 | #ifdef KSSL_DEBUG | |
803 | printf("pkey,x = %p, %p\n", pkey,x); | |
804 | printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey)); | |
805 | printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name, | |
806 | s->s3->tmp.new_cipher->algorithms, need_cert); | |
807 | #endif /* KSSL_DEBUG */ | |
808 | ||
2a1ef754 | 809 | if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey))) |
d02b48c6 RE |
810 | { |
811 | x=NULL; | |
812 | al=SSL3_AL_FATAL; | |
2a1ef754 RL |
813 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, |
814 | SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS); | |
d02b48c6 RE |
815 | goto f_err; |
816 | } | |
817 | ||
818 | i=ssl_cert_type(x,pkey); | |
f9b3bff6 | 819 | if (need_cert && i < 0) |
d02b48c6 RE |
820 | { |
821 | x=NULL; | |
822 | al=SSL3_AL_FATAL; | |
2a1ef754 RL |
823 | SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, |
824 | SSL_R_UNKNOWN_CERTIFICATE_TYPE); | |
d02b48c6 RE |
825 | goto f_err; |
826 | } | |
827 | ||
f9b3bff6 RL |
828 | if (need_cert) |
829 | { | |
830 | sc->peer_cert_type=i; | |
831 | CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509); | |
832 | /* Why would the following ever happen? | |
833 | * We just created sc a couple of lines ago. */ | |
834 | if (sc->peer_pkeys[i].x509 != NULL) | |
835 | X509_free(sc->peer_pkeys[i].x509); | |
836 | sc->peer_pkeys[i].x509=x; | |
837 | sc->peer_key= &(sc->peer_pkeys[i]); | |
838 | ||
839 | if (s->session->peer != NULL) | |
840 | X509_free(s->session->peer); | |
841 | CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509); | |
842 | s->session->peer=x; | |
843 | } | |
844 | else | |
845 | { | |
846 | sc->peer_cert_type=i; | |
847 | sc->peer_key= NULL; | |
848 | ||
849 | if (s->session->peer != NULL) | |
850 | X509_free(s->session->peer); | |
851 | s->session->peer=NULL; | |
852 | } | |
0dd2254d | 853 | s->session->verify_result = s->verify_result; |
d02b48c6 RE |
854 | |
855 | x=NULL; | |
856 | ret=1; | |
857 | ||
858 | if (0) | |
859 | { | |
860 | f_err: | |
861 | ssl3_send_alert(s,SSL3_AL_FATAL,al); | |
862 | } | |
863 | err: | |
a8236c8c DSH |
864 | EVP_PKEY_free(pkey); |
865 | X509_free(x); | |
f73e07cf | 866 | sk_X509_pop_free(sk,X509_free); |
d02b48c6 RE |
867 | return(ret); |
868 | } | |
869 | ||
6b691a5c | 870 | static int ssl3_get_key_exchange(SSL *s) |
d02b48c6 | 871 | { |
bc36ee62 | 872 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
873 | unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2]; |
874 | #endif | |
875 | EVP_MD_CTX md_ctx; | |
876 | unsigned char *param,*p; | |
877 | int al,i,j,param_len,ok; | |
878 | long n,alg; | |
879 | EVP_PKEY *pkey=NULL; | |
bc36ee62 | 880 | #ifndef OPENSSL_NO_RSA |
d02b48c6 | 881 | RSA *rsa=NULL; |
79df9d62 | 882 | #endif |
bc36ee62 | 883 | #ifndef OPENSSL_NO_DH |
d02b48c6 | 884 | DH *dh=NULL; |
58964a49 | 885 | #endif |
d02b48c6 RE |
886 | |
887 | n=ssl3_get_message(s, | |
888 | SSL3_ST_CR_KEY_EXCH_A, | |
889 | SSL3_ST_CR_KEY_EXCH_B, | |
890 | -1, | |
891 | 1024*8, /* ?? */ | |
892 | &ok); | |
893 | ||
894 | if (!ok) return((int)n); | |
895 | ||
896 | if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE) | |
897 | { | |
898 | s->s3->tmp.reuse_message=1; | |
899 | return(1); | |
900 | } | |
901 | ||
902 | param=p=(unsigned char *)s->init_buf->data; | |
903 | ||
9d5cceac | 904 | if (s->session->sess_cert != NULL) |
d02b48c6 | 905 | { |
bc36ee62 | 906 | #ifndef OPENSSL_NO_RSA |
b56bce4f | 907 | if (s->session->sess_cert->peer_rsa_tmp != NULL) |
d02b48c6 | 908 | { |
b56bce4f BM |
909 | RSA_free(s->session->sess_cert->peer_rsa_tmp); |
910 | s->session->sess_cert->peer_rsa_tmp=NULL; | |
d02b48c6 RE |
911 | } |
912 | #endif | |
bc36ee62 | 913 | #ifndef OPENSSL_NO_DH |
b56bce4f | 914 | if (s->session->sess_cert->peer_dh_tmp) |
d02b48c6 | 915 | { |
b56bce4f BM |
916 | DH_free(s->session->sess_cert->peer_dh_tmp); |
917 | s->session->sess_cert->peer_dh_tmp=NULL; | |
d02b48c6 RE |
918 | } |
919 | #endif | |
920 | } | |
921 | else | |
922 | { | |
b56bce4f | 923 | s->session->sess_cert=ssl_sess_cert_new(); |
d02b48c6 RE |
924 | } |
925 | ||
926 | param_len=0; | |
927 | alg=s->s3->tmp.new_cipher->algorithms; | |
928 | ||
bc36ee62 | 929 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
930 | if (alg & SSL_kRSA) |
931 | { | |
932 | if ((rsa=RSA_new()) == NULL) | |
933 | { | |
934 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); | |
935 | goto err; | |
936 | } | |
937 | n2s(p,i); | |
938 | param_len=i+2; | |
939 | if (param_len > n) | |
940 | { | |
58964a49 | 941 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
942 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH); |
943 | goto f_err; | |
944 | } | |
945 | if (!(rsa->n=BN_bin2bn(p,i,rsa->n))) | |
946 | { | |
947 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); | |
948 | goto err; | |
949 | } | |
950 | p+=i; | |
951 | ||
952 | n2s(p,i); | |
953 | param_len+=i+2; | |
954 | if (param_len > n) | |
955 | { | |
58964a49 | 956 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
957 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH); |
958 | goto f_err; | |
959 | } | |
960 | if (!(rsa->e=BN_bin2bn(p,i,rsa->e))) | |
961 | { | |
962 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); | |
963 | goto err; | |
964 | } | |
965 | p+=i; | |
966 | n-=param_len; | |
967 | ||
d02b48c6 RE |
968 | /* this should be because we are using an export cipher */ |
969 | if (alg & SSL_aRSA) | |
b56bce4f | 970 | pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); |
d02b48c6 RE |
971 | else |
972 | { | |
5277d7cb | 973 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); |
d02b48c6 RE |
974 | goto err; |
975 | } | |
b56bce4f | 976 | s->session->sess_cert->peer_rsa_tmp=rsa; |
6b521df3 | 977 | rsa=NULL; |
d02b48c6 | 978 | } |
bc36ee62 | 979 | #else /* OPENSSL_NO_RSA */ |
3f2599d9 BM |
980 | if (0) |
981 | ; | |
d02b48c6 | 982 | #endif |
bc36ee62 | 983 | #ifndef OPENSSL_NO_DH |
3f2599d9 | 984 | else if (alg & SSL_kEDH) |
d02b48c6 RE |
985 | { |
986 | if ((dh=DH_new()) == NULL) | |
987 | { | |
988 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB); | |
989 | goto err; | |
990 | } | |
991 | n2s(p,i); | |
992 | param_len=i+2; | |
993 | if (param_len > n) | |
994 | { | |
58964a49 | 995 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
996 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH); |
997 | goto f_err; | |
998 | } | |
999 | if (!(dh->p=BN_bin2bn(p,i,NULL))) | |
1000 | { | |
1001 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); | |
1002 | goto err; | |
1003 | } | |
1004 | p+=i; | |
1005 | ||
1006 | n2s(p,i); | |
1007 | param_len+=i+2; | |
1008 | if (param_len > n) | |
1009 | { | |
58964a49 | 1010 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
1011 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH); |
1012 | goto f_err; | |
1013 | } | |
1014 | if (!(dh->g=BN_bin2bn(p,i,NULL))) | |
1015 | { | |
1016 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); | |
1017 | goto err; | |
1018 | } | |
1019 | p+=i; | |
1020 | ||
1021 | n2s(p,i); | |
1022 | param_len+=i+2; | |
1023 | if (param_len > n) | |
1024 | { | |
58964a49 | 1025 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
1026 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH); |
1027 | goto f_err; | |
1028 | } | |
1029 | if (!(dh->pub_key=BN_bin2bn(p,i,NULL))) | |
1030 | { | |
1031 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); | |
1032 | goto err; | |
1033 | } | |
1034 | p+=i; | |
1035 | n-=param_len; | |
1036 | ||
bc36ee62 | 1037 | #ifndef OPENSSL_NO_RSA |
d02b48c6 | 1038 | if (alg & SSL_aRSA) |
b56bce4f | 1039 | pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); |
3f2599d9 BM |
1040 | #else |
1041 | if (0) | |
1042 | ; | |
d02b48c6 | 1043 | #endif |
bc36ee62 | 1044 | #ifndef OPENSSL_NO_DSA |
3f2599d9 | 1045 | else if (alg & SSL_aDSS) |
b56bce4f | 1046 | pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509); |
d02b48c6 RE |
1047 | #endif |
1048 | /* else anonymous DH, so no certificate or pkey. */ | |
1049 | ||
b56bce4f | 1050 | s->session->sess_cert->peer_dh_tmp=dh; |
413c4f45 | 1051 | dh=NULL; |
d02b48c6 RE |
1052 | } |
1053 | else if ((alg & SSL_kDHr) || (alg & SSL_kDHd)) | |
1054 | { | |
58964a49 | 1055 | al=SSL_AD_ILLEGAL_PARAMETER; |
d02b48c6 RE |
1056 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER); |
1057 | goto f_err; | |
1058 | } | |
bc36ee62 | 1059 | #endif /* !OPENSSL_NO_DH */ |
dfeab068 RE |
1060 | if (alg & SSL_aFZA) |
1061 | { | |
1062 | al=SSL_AD_HANDSHAKE_FAILURE; | |
1063 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER); | |
1064 | goto f_err; | |
1065 | } | |
1066 | ||
d02b48c6 RE |
1067 | |
1068 | /* p points to the next byte, there are 'n' bytes left */ | |
1069 | ||
1070 | ||
1071 | /* if it was signed, check the signature */ | |
1072 | if (pkey != NULL) | |
1073 | { | |
1074 | n2s(p,i); | |
1075 | n-=2; | |
1076 | j=EVP_PKEY_size(pkey); | |
1077 | ||
1078 | if ((i != n) || (n > j) || (n <= 0)) | |
1079 | { | |
1080 | /* wrong packet length */ | |
58964a49 | 1081 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 | 1082 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH); |
dfeab068 | 1083 | goto f_err; |
d02b48c6 RE |
1084 | } |
1085 | ||
bc36ee62 | 1086 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
1087 | if (pkey->type == EVP_PKEY_RSA) |
1088 | { | |
1089 | int num; | |
1090 | ||
1091 | j=0; | |
1092 | q=md_buf; | |
1093 | for (num=2; num > 0; num--) | |
1094 | { | |
58964a49 RE |
1095 | EVP_DigestInit(&md_ctx,(num == 2) |
1096 | ?s->ctx->md5:s->ctx->sha1); | |
d02b48c6 RE |
1097 | EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); |
1098 | EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); | |
1099 | EVP_DigestUpdate(&md_ctx,param,param_len); | |
1100 | EVP_DigestFinal(&md_ctx,q,(unsigned int *)&i); | |
1101 | q+=i; | |
1102 | j+=i; | |
1103 | } | |
1c80019a DSH |
1104 | i=RSA_verify(NID_md5_sha1, md_buf, j, p, n, |
1105 | pkey->pkey.rsa); | |
1106 | if (i < 0) | |
d02b48c6 | 1107 | { |
58964a49 | 1108 | al=SSL_AD_DECRYPT_ERROR; |
d02b48c6 RE |
1109 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT); |
1110 | goto f_err; | |
1111 | } | |
1c80019a | 1112 | if (i == 0) |
d02b48c6 RE |
1113 | { |
1114 | /* bad signature */ | |
58964a49 | 1115 | al=SSL_AD_DECRYPT_ERROR; |
d02b48c6 RE |
1116 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE); |
1117 | goto f_err; | |
1118 | } | |
1119 | } | |
1120 | else | |
1121 | #endif | |
bc36ee62 | 1122 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
1123 | if (pkey->type == EVP_PKEY_DSA) |
1124 | { | |
1125 | /* lets do DSS */ | |
1126 | EVP_VerifyInit(&md_ctx,EVP_dss1()); | |
1127 | EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); | |
1128 | EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); | |
1129 | EVP_VerifyUpdate(&md_ctx,param,param_len); | |
1130 | if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey)) | |
1131 | { | |
1132 | /* bad signature */ | |
58964a49 | 1133 | al=SSL_AD_DECRYPT_ERROR; |
d02b48c6 RE |
1134 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE); |
1135 | goto f_err; | |
1136 | } | |
1137 | } | |
1138 | else | |
1139 | #endif | |
1140 | { | |
5277d7cb | 1141 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); |
d02b48c6 RE |
1142 | goto err; |
1143 | } | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | /* still data left over */ | |
1148 | if (!(alg & SSL_aNULL)) | |
1149 | { | |
5277d7cb | 1150 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); |
d02b48c6 RE |
1151 | goto err; |
1152 | } | |
1153 | if (n != 0) | |
1154 | { | |
58964a49 | 1155 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
1156 | SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE); |
1157 | goto f_err; | |
1158 | } | |
1159 | } | |
a8236c8c | 1160 | EVP_PKEY_free(pkey); |
d02b48c6 RE |
1161 | return(1); |
1162 | f_err: | |
1163 | ssl3_send_alert(s,SSL3_AL_FATAL,al); | |
1164 | err: | |
a8236c8c | 1165 | EVP_PKEY_free(pkey); |
bc36ee62 | 1166 | #ifndef OPENSSL_NO_RSA |
6b521df3 BM |
1167 | if (rsa != NULL) |
1168 | RSA_free(rsa); | |
1169 | #endif | |
bc36ee62 | 1170 | #ifndef OPENSSL_NO_DH |
6b521df3 BM |
1171 | if (dh != NULL) |
1172 | DH_free(dh); | |
1173 | #endif | |
d02b48c6 RE |
1174 | return(-1); |
1175 | } | |
1176 | ||
6b691a5c | 1177 | static int ssl3_get_certificate_request(SSL *s) |
d02b48c6 RE |
1178 | { |
1179 | int ok,ret=0; | |
58964a49 RE |
1180 | unsigned long n,nc,l; |
1181 | unsigned int llen,ctype_num,i; | |
d02b48c6 RE |
1182 | X509_NAME *xn=NULL; |
1183 | unsigned char *p,*d,*q; | |
f73e07cf | 1184 | STACK_OF(X509_NAME) *ca_sk=NULL; |
d02b48c6 RE |
1185 | |
1186 | n=ssl3_get_message(s, | |
1187 | SSL3_ST_CR_CERT_REQ_A, | |
1188 | SSL3_ST_CR_CERT_REQ_B, | |
1189 | -1, | |
bc36ee62 | 1190 | #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32) |
d02b48c6 RE |
1191 | 1024*30, /* 30k max cert list :-) */ |
1192 | #else | |
1193 | 1024*100, /* 100k max cert list :-) */ | |
1194 | #endif | |
1195 | &ok); | |
1196 | ||
1197 | if (!ok) return((int)n); | |
1198 | ||
1199 | s->s3->tmp.cert_req=0; | |
1200 | ||
1201 | if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE) | |
1202 | { | |
1203 | s->s3->tmp.reuse_message=1; | |
1204 | return(1); | |
1205 | } | |
1206 | ||
1207 | if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST) | |
1208 | { | |
58964a49 | 1209 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE); |
d02b48c6 RE |
1210 | SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE); |
1211 | goto err; | |
1212 | } | |
1213 | ||
58964a49 RE |
1214 | /* TLS does not like anon-DH with client cert */ |
1215 | if (s->version > SSL3_VERSION) | |
1216 | { | |
1217 | l=s->s3->tmp.new_cipher->algorithms; | |
1218 | if (l & SSL_aNULL) | |
1219 | { | |
1220 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE); | |
1221 | SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER); | |
1222 | goto err; | |
1223 | } | |
1224 | } | |
1225 | ||
d02b48c6 RE |
1226 | d=p=(unsigned char *)s->init_buf->data; |
1227 | ||
f73e07cf | 1228 | if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL) |
d02b48c6 RE |
1229 | { |
1230 | SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE); | |
1231 | goto err; | |
1232 | } | |
1233 | ||
1234 | /* get the certificate types */ | |
1235 | ctype_num= *(p++); | |
1236 | if (ctype_num > SSL3_CT_NUMBER) | |
1237 | ctype_num=SSL3_CT_NUMBER; | |
1238 | for (i=0; i<ctype_num; i++) | |
1239 | s->s3->tmp.ctype[i]= p[i]; | |
1240 | p+=ctype_num; | |
1241 | ||
1242 | /* get the CA RDNs */ | |
1243 | n2s(p,llen); | |
dfeab068 RE |
1244 | #if 0 |
1245 | { | |
1246 | FILE *out; | |
1247 | out=fopen("/tmp/vsign.der","w"); | |
1248 | fwrite(p,1,llen,out); | |
1249 | fclose(out); | |
1250 | } | |
1251 | #endif | |
1252 | ||
d02b48c6 RE |
1253 | if ((llen+ctype_num+2+1) != n) |
1254 | { | |
58964a49 | 1255 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); |
d02b48c6 RE |
1256 | SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH); |
1257 | goto err; | |
1258 | } | |
1259 | ||
1260 | for (nc=0; nc<llen; ) | |
1261 | { | |
1262 | n2s(p,l); | |
1263 | if ((l+nc+2) > llen) | |
1264 | { | |
58964a49 | 1265 | if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG)) |
d02b48c6 | 1266 | goto cont; /* netscape bugs */ |
58964a49 | 1267 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); |
d02b48c6 RE |
1268 | SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG); |
1269 | goto err; | |
1270 | } | |
1271 | ||
1272 | q=p; | |
1273 | ||
1274 | if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL) | |
1275 | { | |
657e60fa | 1276 | /* If netscape tolerance is on, ignore errors */ |
58964a49 | 1277 | if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG) |
d02b48c6 RE |
1278 | goto cont; |
1279 | else | |
1280 | { | |
58964a49 | 1281 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); |
d02b48c6 RE |
1282 | SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB); |
1283 | goto err; | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | if (q != (p+l)) | |
1288 | { | |
58964a49 | 1289 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); |
d02b48c6 RE |
1290 | SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH); |
1291 | goto err; | |
1292 | } | |
f73e07cf | 1293 | if (!sk_X509_NAME_push(ca_sk,xn)) |
d02b48c6 RE |
1294 | { |
1295 | SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE); | |
1296 | goto err; | |
1297 | } | |
1298 | ||
1299 | p+=l; | |
1300 | nc+=l+2; | |
1301 | } | |
1302 | ||
1303 | if (0) | |
1304 | { | |
1305 | cont: | |
1306 | ERR_clear_error(); | |
1307 | } | |
1308 | ||
657e60fa | 1309 | /* we should setup a certificate to return.... */ |
d02b48c6 RE |
1310 | s->s3->tmp.cert_req=1; |
1311 | s->s3->tmp.ctype_num=ctype_num; | |
1312 | if (s->s3->tmp.ca_names != NULL) | |
f73e07cf | 1313 | sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free); |
d02b48c6 RE |
1314 | s->s3->tmp.ca_names=ca_sk; |
1315 | ca_sk=NULL; | |
1316 | ||
1317 | ret=1; | |
1318 | err: | |
f73e07cf | 1319 | if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free); |
d02b48c6 RE |
1320 | return(ret); |
1321 | } | |
1322 | ||
ccd86b68 | 1323 | static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b) |
d02b48c6 RE |
1324 | { |
1325 | return(X509_NAME_cmp(*a,*b)); | |
1326 | } | |
1327 | ||
6b691a5c | 1328 | static int ssl3_get_server_done(SSL *s) |
d02b48c6 RE |
1329 | { |
1330 | int ok,ret=0; | |
1331 | long n; | |
1332 | ||
1333 | n=ssl3_get_message(s, | |
1334 | SSL3_ST_CR_SRVR_DONE_A, | |
1335 | SSL3_ST_CR_SRVR_DONE_B, | |
1336 | SSL3_MT_SERVER_DONE, | |
1337 | 30, /* should be very small, like 0 :-) */ | |
1338 | &ok); | |
1339 | ||
1340 | if (!ok) return((int)n); | |
1341 | if (n > 0) | |
1342 | { | |
1343 | /* should contain no data */ | |
58964a49 | 1344 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); |
d02b48c6 RE |
1345 | SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH); |
1346 | } | |
1347 | ret=1; | |
1348 | return(ret); | |
1349 | } | |
1350 | ||
6b691a5c | 1351 | static int ssl3_send_client_key_exchange(SSL *s) |
d02b48c6 | 1352 | { |
79df9d62 | 1353 | unsigned char *p,*d; |
d02b48c6 RE |
1354 | int n; |
1355 | unsigned long l; | |
bc36ee62 | 1356 | #ifndef OPENSSL_NO_RSA |
79df9d62 | 1357 | unsigned char *q; |
d02b48c6 | 1358 | EVP_PKEY *pkey=NULL; |
79df9d62 | 1359 | #endif |
bc36ee62 | 1360 | #ifndef OPENSSL_NO_KRB5 |
f9b3bff6 | 1361 | KSSL_ERR kssl_err; |
bc36ee62 | 1362 | #endif /* OPENSSL_NO_KRB5 */ |
d02b48c6 RE |
1363 | |
1364 | if (s->state == SSL3_ST_CW_KEY_EXCH_A) | |
1365 | { | |
1366 | d=(unsigned char *)s->init_buf->data; | |
1367 | p= &(d[4]); | |
1368 | ||
1369 | l=s->s3->tmp.new_cipher->algorithms; | |
1370 | ||
f9b3bff6 RL |
1371 | /* Fool emacs indentation */ |
1372 | if (0) {} | |
bc36ee62 | 1373 | #ifndef OPENSSL_NO_RSA |
f9b3bff6 | 1374 | else if (l & SSL_kRSA) |
d02b48c6 RE |
1375 | { |
1376 | RSA *rsa; | |
dfeab068 | 1377 | unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; |
d02b48c6 | 1378 | |
b56bce4f BM |
1379 | if (s->session->sess_cert->peer_rsa_tmp != NULL) |
1380 | rsa=s->session->sess_cert->peer_rsa_tmp; | |
d02b48c6 RE |
1381 | else |
1382 | { | |
b56bce4f | 1383 | pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); |
d02b48c6 RE |
1384 | if ((pkey == NULL) || |
1385 | (pkey->type != EVP_PKEY_RSA) || | |
1386 | (pkey->pkey.rsa == NULL)) | |
1387 | { | |
5277d7cb | 1388 | SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); |
d02b48c6 RE |
1389 | goto err; |
1390 | } | |
1391 | rsa=pkey->pkey.rsa; | |
50596582 | 1392 | EVP_PKEY_free(pkey); |
d02b48c6 RE |
1393 | } |
1394 | ||
413c4f45 MC |
1395 | tmp_buf[0]=s->client_version>>8; |
1396 | tmp_buf[1]=s->client_version&0xff; | |
e7f97e2d UM |
1397 | if (RAND_bytes(&(tmp_buf[2]),SSL_MAX_MASTER_KEY_LENGTH-2) <= 0) |
1398 | goto err; | |
d02b48c6 RE |
1399 | |
1400 | s->session->master_key_length=SSL_MAX_MASTER_KEY_LENGTH; | |
1401 | ||
58964a49 RE |
1402 | q=p; |
1403 | /* Fix buf for TLS and beyond */ | |
1404 | if (s->version > SSL3_VERSION) | |
1405 | p+=2; | |
1406 | n=RSA_public_encrypt(SSL_MAX_MASTER_KEY_LENGTH, | |
1407 | tmp_buf,p,rsa,RSA_PKCS1_PADDING); | |
dfeab068 RE |
1408 | #ifdef PKCS1_CHECK |
1409 | if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++; | |
1410 | if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70; | |
1411 | #endif | |
d02b48c6 RE |
1412 | if (n <= 0) |
1413 | { | |
1414 | SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT); | |
1415 | goto err; | |
1416 | } | |
1417 | ||
58964a49 RE |
1418 | /* Fix buf for TLS and beyond */ |
1419 | if (s->version > SSL3_VERSION) | |
1420 | { | |
1421 | s2n(n,q); | |
1422 | n+=2; | |
1423 | } | |
1424 | ||
d02b48c6 | 1425 | s->session->master_key_length= |
58964a49 | 1426 | s->method->ssl3_enc->generate_master_secret(s, |
d02b48c6 | 1427 | s->session->master_key, |
dfeab068 RE |
1428 | tmp_buf,SSL_MAX_MASTER_KEY_LENGTH); |
1429 | memset(tmp_buf,0,SSL_MAX_MASTER_KEY_LENGTH); | |
d02b48c6 | 1430 | } |
f9b3bff6 | 1431 | #endif |
bc36ee62 | 1432 | #ifndef OPENSSL_NO_KRB5 |
f9b3bff6 RL |
1433 | else if (l & SSL_kKRB5) |
1434 | { | |
1435 | krb5_error_code krb5rc; | |
1436 | KSSL_CTX *kssl_ctx = s->kssl_ctx; | |
2a1ef754 RL |
1437 | /* krb5_data krb5_ap_req; */ |
1438 | krb5_data *enc_ticket; | |
1439 | krb5_data authenticator, *authp = NULL; | |
1440 | EVP_CIPHER_CTX ciph_ctx; | |
1441 | EVP_CIPHER *enc = NULL; | |
1442 | unsigned char iv[EVP_MAX_IV_LENGTH]; | |
1443 | unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; | |
1444 | unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH | |
1445 | + EVP_MAX_IV_LENGTH]; | |
1446 | int padl, outl = sizeof(epms); | |
f9b3bff6 RL |
1447 | |
1448 | #ifdef KSSL_DEBUG | |
1449 | printf("ssl3_send_client_key_exchange(%lx & %lx)\n", | |
1450 | l, SSL_kKRB5); | |
1451 | #endif /* KSSL_DEBUG */ | |
1452 | ||
2a1ef754 RL |
1453 | authp = NULL; |
1454 | #ifdef KRB5SENDAUTH | |
1455 | if (KRB5SENDAUTH) authp = &authenticator; | |
1456 | #endif /* KRB5SENDAUTH */ | |
1457 | ||
1458 | krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp, | |
1459 | &kssl_err); | |
1460 | enc = kssl_map_enc(kssl_ctx->enctype); | |
f9b3bff6 RL |
1461 | #ifdef KSSL_DEBUG |
1462 | { | |
1463 | printf("kssl_cget_tkt rtn %d\n", krb5rc); | |
f9b3bff6 | 1464 | if (krb5rc && kssl_err.text) |
2a1ef754 | 1465 | printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text); |
f9b3bff6 RL |
1466 | } |
1467 | #endif /* KSSL_DEBUG */ | |
1468 | ||
1469 | if (krb5rc) | |
1470 | { | |
2a1ef754 RL |
1471 | ssl3_send_alert(s,SSL3_AL_FATAL, |
1472 | SSL_AD_HANDSHAKE_FAILURE); | |
1473 | SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, | |
1474 | kssl_err.reason); | |
f9b3bff6 RL |
1475 | goto err; |
1476 | } | |
1477 | ||
2a1ef754 RL |
1478 | /* 20010406 VRS - Earlier versions used KRB5 AP_REQ |
1479 | ** in place of RFC 2712 KerberosWrapper, as in: | |
1480 | ** | |
1481 | ** Send ticket (copy to *p, set n = length) | |
1482 | ** n = krb5_ap_req.length; | |
1483 | ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length); | |
1484 | ** if (krb5_ap_req.data) | |
1485 | ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req); | |
f9b3bff6 | 1486 | ** |
2a1ef754 RL |
1487 | ** Now using real RFC 2712 KerberosWrapper |
1488 | ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>) | |
1489 | ** Note: 2712 "opaque" types are here replaced | |
1490 | ** with a 2-byte length followed by the value. | |
1491 | ** Example: | |
1492 | ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms | |
1493 | ** Where "xx xx" = length bytes. Shown here with | |
1494 | ** optional authenticator omitted. | |
1495 | */ | |
1496 | ||
1497 | /* KerberosWrapper.Ticket */ | |
1498 | s2n(enc_ticket->length,p); | |
1499 | memcpy(p, enc_ticket->data, enc_ticket->length); | |
1500 | p+= enc_ticket->length; | |
1501 | n = enc_ticket->length + 2; | |
1502 | ||
1503 | /* KerberosWrapper.Authenticator */ | |
1504 | if (authp && authp->length) | |
1505 | { | |
1506 | s2n(authp->length,p); | |
1507 | memcpy(p, authp->data, authp->length); | |
1508 | p+= authp->length; | |
1509 | n+= authp->length + 2; | |
1510 | ||
1511 | free(authp->data); | |
1512 | authp->data = NULL; | |
1513 | authp->length = 0; | |
1514 | } | |
1515 | else | |
1516 | { | |
1517 | s2n(0,p);/* null authenticator length */ | |
1518 | n+=2; | |
1519 | } | |
1520 | ||
1521 | if (RAND_bytes(tmp_buf,SSL_MAX_MASTER_KEY_LENGTH) <= 0) | |
1522 | goto err; | |
1523 | ||
1524 | /* 20010420 VRS. Tried it this way; failed. | |
1525 | ** EVP_EncryptInit(&ciph_ctx,enc, NULL,NULL); | |
1526 | ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx, | |
1527 | ** kssl_ctx->length); | |
1528 | ** EVP_EncryptInit(&ciph_ctx,NULL, key,iv); | |
1529 | */ | |
1530 | ||
1531 | memset(iv, 0, EVP_MAX_IV_LENGTH); /* per RFC 1510 */ | |
1532 | EVP_EncryptInit(&ciph_ctx,enc, kssl_ctx->key,iv); | |
1533 | EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf, | |
1534 | SSL_MAX_MASTER_KEY_LENGTH); | |
1535 | EVP_EncryptFinal(&ciph_ctx,&(epms[outl]),&padl); | |
1536 | outl += padl; | |
1537 | EVP_CIPHER_CTX_cleanup(&ciph_ctx); | |
1538 | ||
1539 | /* KerberosWrapper.EncryptedPreMasterSecret */ | |
1540 | s2n(outl,p); | |
1541 | memcpy(p, epms, outl); | |
1542 | p+=outl; | |
1543 | n+=outl + 2; | |
1544 | ||
f9b3bff6 RL |
1545 | s->session->master_key_length= |
1546 | s->method->ssl3_enc->generate_master_secret(s, | |
2a1ef754 RL |
1547 | s->session->master_key, |
1548 | tmp_buf, SSL_MAX_MASTER_KEY_LENGTH); | |
1549 | ||
1550 | memset(tmp_buf, 0, SSL_MAX_MASTER_KEY_LENGTH); | |
1551 | memset(epms, 0, outl); | |
f9b3bff6 | 1552 | } |
d02b48c6 | 1553 | #endif |
bc36ee62 | 1554 | #ifndef OPENSSL_NO_DH |
f9b3bff6 | 1555 | else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) |
d02b48c6 RE |
1556 | { |
1557 | DH *dh_srvr,*dh_clnt; | |
1558 | ||
b56bce4f BM |
1559 | if (s->session->sess_cert->peer_dh_tmp != NULL) |
1560 | dh_srvr=s->session->sess_cert->peer_dh_tmp; | |
d02b48c6 RE |
1561 | else |
1562 | { | |
1563 | /* we get them from the cert */ | |
58964a49 | 1564 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); |
d02b48c6 RE |
1565 | SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS); |
1566 | goto err; | |
1567 | } | |
1568 | ||
1569 | /* generate a new random key */ | |
1570 | if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL) | |
1571 | { | |
1572 | SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); | |
1573 | goto err; | |
1574 | } | |
1575 | if (!DH_generate_key(dh_clnt)) | |
1576 | { | |
1577 | SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); | |
1578 | goto err; | |
1579 | } | |
1580 | ||
1581 | /* use the 'p' output buffer for the DH key, but | |
1582 | * make sure to clear it out afterwards */ | |
58964a49 | 1583 | |
d02b48c6 | 1584 | n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt); |
58964a49 | 1585 | |
d02b48c6 RE |
1586 | if (n <= 0) |
1587 | { | |
1588 | SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); | |
1589 | goto err; | |
1590 | } | |
1591 | ||
1592 | /* generate master key from the result */ | |
1593 | s->session->master_key_length= | |
58964a49 | 1594 | s->method->ssl3_enc->generate_master_secret(s, |
d02b48c6 RE |
1595 | s->session->master_key,p,n); |
1596 | /* clean up */ | |
1597 | memset(p,0,n); | |
1598 | ||
1599 | /* send off the data */ | |
1600 | n=BN_num_bytes(dh_clnt->pub_key); | |
1601 | s2n(n,p); | |
1602 | BN_bn2bin(dh_clnt->pub_key,p); | |
1603 | n+=2; | |
1604 | ||
1605 | DH_free(dh_clnt); | |
1606 | ||
1607 | /* perhaps clean things up a bit EAY EAY EAY EAY*/ | |
1608 | } | |
d02b48c6 | 1609 | #endif |
f9b3bff6 | 1610 | else |
d02b48c6 | 1611 | { |
58964a49 | 1612 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); |
5277d7cb | 1613 | SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); |
d02b48c6 RE |
1614 | goto err; |
1615 | } | |
1616 | ||
1617 | *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE; | |
1618 | l2n3(n,d); | |
1619 | ||
1620 | s->state=SSL3_ST_CW_KEY_EXCH_B; | |
1621 | /* number of bytes to write */ | |
1622 | s->init_num=n+4; | |
1623 | s->init_off=0; | |
1624 | } | |
1625 | ||
1626 | /* SSL3_ST_CW_KEY_EXCH_B */ | |
1627 | return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); | |
1628 | err: | |
1629 | return(-1); | |
1630 | } | |
1631 | ||
6b691a5c | 1632 | static int ssl3_send_client_verify(SSL *s) |
d02b48c6 RE |
1633 | { |
1634 | unsigned char *p,*d; | |
1635 | unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH]; | |
1636 | EVP_PKEY *pkey; | |
bc36ee62 | 1637 | #ifndef OPENSSL_NO_RSA |
ca7fea96 | 1638 | unsigned u=0; |
79df9d62 | 1639 | #endif |
d02b48c6 | 1640 | unsigned long n; |
bc36ee62 | 1641 | #ifndef OPENSSL_NO_DSA |
58964a49 RE |
1642 | int j; |
1643 | #endif | |
d02b48c6 RE |
1644 | |
1645 | if (s->state == SSL3_ST_CW_CERT_VRFY_A) | |
1646 | { | |
1647 | d=(unsigned char *)s->init_buf->data; | |
1648 | p= &(d[4]); | |
1649 | pkey=s->cert->key->privatekey; | |
1650 | ||
58964a49 RE |
1651 | s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2), |
1652 | &(data[MD5_DIGEST_LENGTH])); | |
d02b48c6 | 1653 | |
bc36ee62 | 1654 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
1655 | if (pkey->type == EVP_PKEY_RSA) |
1656 | { | |
58964a49 RE |
1657 | s->method->ssl3_enc->cert_verify_mac(s, |
1658 | &(s->s3->finish_dgst1),&(data[0])); | |
1c80019a DSH |
1659 | if (RSA_sign(NID_md5_sha1, data, |
1660 | MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH, | |
ca7fea96 | 1661 | &(p[2]), &u, pkey->pkey.rsa) <= 0 ) |
d02b48c6 RE |
1662 | { |
1663 | SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB); | |
1664 | goto err; | |
1665 | } | |
ca7fea96 BL |
1666 | s2n(u,p); |
1667 | n=u+2; | |
d02b48c6 RE |
1668 | } |
1669 | else | |
1670 | #endif | |
bc36ee62 | 1671 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
1672 | if (pkey->type == EVP_PKEY_DSA) |
1673 | { | |
1674 | if (!DSA_sign(pkey->save_type, | |
1675 | &(data[MD5_DIGEST_LENGTH]), | |
1676 | SHA_DIGEST_LENGTH,&(p[2]), | |
1677 | (unsigned int *)&j,pkey->pkey.dsa)) | |
1678 | { | |
1679 | SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB); | |
1680 | goto err; | |
1681 | } | |
1682 | s2n(j,p); | |
1683 | n=j+2; | |
1684 | } | |
1685 | else | |
1686 | #endif | |
1687 | { | |
5277d7cb | 1688 | SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR); |
d02b48c6 RE |
1689 | goto err; |
1690 | } | |
1691 | *(d++)=SSL3_MT_CERTIFICATE_VERIFY; | |
1692 | l2n3(n,d); | |
1693 | ||
1694 | s->init_num=(int)n+4; | |
1695 | s->init_off=0; | |
1696 | } | |
1697 | return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); | |
1698 | err: | |
1699 | return(-1); | |
1700 | } | |
1701 | ||
6b691a5c | 1702 | static int ssl3_send_client_certificate(SSL *s) |
d02b48c6 RE |
1703 | { |
1704 | X509 *x509=NULL; | |
1705 | EVP_PKEY *pkey=NULL; | |
1706 | int i; | |
1707 | unsigned long l; | |
1708 | ||
1709 | if (s->state == SSL3_ST_CW_CERT_A) | |
1710 | { | |
1711 | if ((s->cert == NULL) || | |
1712 | (s->cert->key->x509 == NULL) || | |
1713 | (s->cert->key->privatekey == NULL)) | |
1714 | s->state=SSL3_ST_CW_CERT_B; | |
1715 | else | |
1716 | s->state=SSL3_ST_CW_CERT_C; | |
1717 | } | |
1718 | ||
1719 | /* We need to get a client cert */ | |
1720 | if (s->state == SSL3_ST_CW_CERT_B) | |
1721 | { | |
1722 | /* If we get an error, we need to | |
1723 | * ssl->rwstate=SSL_X509_LOOKUP; return(-1); | |
1724 | * We then get retied later */ | |
1725 | i=0; | |
1726 | if (s->ctx->client_cert_cb != NULL) | |
1727 | i=s->ctx->client_cert_cb(s,&(x509),&(pkey)); | |
1728 | if (i < 0) | |
1729 | { | |
1730 | s->rwstate=SSL_X509_LOOKUP; | |
1731 | return(-1); | |
1732 | } | |
1733 | s->rwstate=SSL_NOTHING; | |
1734 | if ((i == 1) && (pkey != NULL) && (x509 != NULL)) | |
1735 | { | |
1736 | s->state=SSL3_ST_CW_CERT_B; | |
1737 | if ( !SSL_use_certificate(s,x509) || | |
1738 | !SSL_use_PrivateKey(s,pkey)) | |
1739 | i=0; | |
1740 | } | |
1741 | else if (i == 1) | |
1742 | { | |
1743 | i=0; | |
1744 | SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK); | |
1745 | } | |
1746 | ||
1747 | if (x509 != NULL) X509_free(x509); | |
1748 | if (pkey != NULL) EVP_PKEY_free(pkey); | |
1749 | if (i == 0) | |
1750 | { | |
58964a49 RE |
1751 | if (s->version == SSL3_VERSION) |
1752 | { | |
1753 | s->s3->tmp.cert_req=0; | |
1754 | ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE); | |
1755 | return(1); | |
1756 | } | |
1757 | else | |
1758 | { | |
1759 | s->s3->tmp.cert_req=2; | |
1760 | } | |
d02b48c6 RE |
1761 | } |
1762 | ||
1763 | /* Ok, we have a cert */ | |
1764 | s->state=SSL3_ST_CW_CERT_C; | |
1765 | } | |
1766 | ||
1767 | if (s->state == SSL3_ST_CW_CERT_C) | |
1768 | { | |
1769 | s->state=SSL3_ST_CW_CERT_D; | |
58964a49 RE |
1770 | l=ssl3_output_cert_chain(s, |
1771 | (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509); | |
d02b48c6 RE |
1772 | s->init_num=(int)l; |
1773 | s->init_off=0; | |
1774 | } | |
1775 | /* SSL3_ST_CW_CERT_D */ | |
1776 | return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); | |
1777 | } | |
1778 | ||
1779 | #define has_bits(i,m) (((i)&(m)) == (m)) | |
1780 | ||
6b691a5c | 1781 | static int ssl3_check_cert_and_algorithm(SSL *s) |
d02b48c6 RE |
1782 | { |
1783 | int i,idx; | |
1784 | long algs; | |
1785 | EVP_PKEY *pkey=NULL; | |
b56bce4f | 1786 | SESS_CERT *sc; |
bc36ee62 | 1787 | #ifndef OPENSSL_NO_RSA |
d02b48c6 | 1788 | RSA *rsa; |
79df9d62 | 1789 | #endif |
bc36ee62 | 1790 | #ifndef OPENSSL_NO_DH |
d02b48c6 | 1791 | DH *dh; |
79df9d62 | 1792 | #endif |
d02b48c6 | 1793 | |
b56bce4f | 1794 | sc=s->session->sess_cert; |
d02b48c6 | 1795 | |
b56bce4f | 1796 | if (sc == NULL) |
d02b48c6 | 1797 | { |
5277d7cb | 1798 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR); |
d02b48c6 RE |
1799 | goto err; |
1800 | } | |
1801 | ||
1802 | algs=s->s3->tmp.new_cipher->algorithms; | |
1803 | ||
1804 | /* we don't have a certificate */ | |
f9b3bff6 | 1805 | if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5)) |
d02b48c6 RE |
1806 | return(1); |
1807 | ||
bc36ee62 | 1808 | #ifndef OPENSSL_NO_RSA |
b56bce4f | 1809 | rsa=s->session->sess_cert->peer_rsa_tmp; |
79df9d62 | 1810 | #endif |
bc36ee62 | 1811 | #ifndef OPENSSL_NO_DH |
b56bce4f | 1812 | dh=s->session->sess_cert->peer_dh_tmp; |
79df9d62 | 1813 | #endif |
d02b48c6 RE |
1814 | |
1815 | /* This is the passed certificate */ | |
1816 | ||
b56bce4f BM |
1817 | idx=sc->peer_cert_type; |
1818 | pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509); | |
1819 | i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey); | |
a8236c8c | 1820 | EVP_PKEY_free(pkey); |
d02b48c6 RE |
1821 | |
1822 | ||
1823 | /* Check that we have a certificate if we require one */ | |
1824 | if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN)) | |
1825 | { | |
1826 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT); | |
1827 | goto f_err; | |
1828 | } | |
bc36ee62 | 1829 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
1830 | else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN)) |
1831 | { | |
1832 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT); | |
1833 | goto f_err; | |
1834 | } | |
1835 | #endif | |
bc36ee62 | 1836 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
1837 | if ((algs & SSL_kRSA) && |
1838 | !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL))) | |
1839 | { | |
1840 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT); | |
1841 | goto f_err; | |
1842 | } | |
79df9d62 | 1843 | #endif |
bc36ee62 | 1844 | #ifndef OPENSSL_NO_DH |
79df9d62 | 1845 | if ((algs & SSL_kEDH) && |
d02b48c6 RE |
1846 | !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL))) |
1847 | { | |
1848 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY); | |
1849 | goto f_err; | |
1850 | } | |
1851 | else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA)) | |
1852 | { | |
1853 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT); | |
1854 | goto f_err; | |
1855 | } | |
bc36ee62 | 1856 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
1857 | else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA)) |
1858 | { | |
1859 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT); | |
1860 | goto f_err; | |
1861 | } | |
1862 | #endif | |
1863 | #endif | |
1864 | ||
018e57c7 | 1865 | if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP)) |
d02b48c6 | 1866 | { |
bc36ee62 | 1867 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
1868 | if (algs & SSL_kRSA) |
1869 | { | |
06ab81f9 | 1870 | if (rsa == NULL |
018e57c7 | 1871 | || RSA_size(rsa) > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) |
d02b48c6 RE |
1872 | { |
1873 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY); | |
1874 | goto f_err; | |
1875 | } | |
1876 | } | |
1877 | else | |
1878 | #endif | |
bc36ee62 | 1879 | #ifndef OPENSSL_NO_DH |
d02b48c6 | 1880 | if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) |
06ab81f9 BL |
1881 | { |
1882 | if (dh == NULL | |
018e57c7 | 1883 | || DH_size(dh) > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) |
d02b48c6 RE |
1884 | { |
1885 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY); | |
1886 | goto f_err; | |
1887 | } | |
1888 | } | |
1889 | else | |
1890 | #endif | |
1891 | { | |
1892 | SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE); | |
1893 | goto f_err; | |
1894 | } | |
1895 | } | |
1896 | return(1); | |
1897 | f_err: | |
58964a49 | 1898 | ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); |
d02b48c6 RE |
1899 | err: |
1900 | return(0); | |
1901 | } | |
1902 |