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d02b48c6 | 1 | /* ssl/s3_both.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. | |
40720ce3 | 8 | * |
d02b48c6 RE |
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). | |
40720ce3 | 15 | * |
d02b48c6 RE |
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. | |
40720ce3 | 22 | * |
d02b48c6 RE |
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 :-). | |
40720ce3 | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40720ce3 | 40 | * |
d02b48c6 RE |
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. | |
40720ce3 | 52 | * |
d02b48c6 RE |
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 | */ | |
3813046d | 58 | /* ==================================================================== |
82b0bf0b | 59 | * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. |
3813046d BM |
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 | |
40720ce3 | 66 | * notice, this list of conditions and the following disclaimer. |
3813046d BM |
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 | */ | |
ea262260 BM |
111 | /* ==================================================================== |
112 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
40720ce3 | 113 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
114 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
115 | */ | |
d02b48c6 | 116 | |
48948d53 | 117 | #include <limits.h> |
f2d9a32c | 118 | #include <string.h> |
d02b48c6 | 119 | #include <stdio.h> |
7b63c0fa | 120 | #include "ssl_locl.h" |
ec577822 BM |
121 | #include <openssl/buffer.h> |
122 | #include <openssl/rand.h> | |
123 | #include <openssl/objects.h> | |
124 | #include <openssl/evp.h> | |
125 | #include <openssl/x509.h> | |
d02b48c6 | 126 | |
40720ce3 MC |
127 | /* |
128 | * send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or | |
129 | * SSL3_RT_CHANGE_CIPHER_SPEC) | |
130 | */ | |
e7ecc7d4 | 131 | int ssl3_do_write(SSL *s, int type) |
40720ce3 MC |
132 | { |
133 | int ret; | |
134 | ||
135 | ret = ssl3_write_bytes(s, type, &s->init_buf->data[s->init_off], | |
136 | s->init_num); | |
137 | if (ret < 0) | |
138 | return (-1); | |
139 | if (type == SSL3_RT_HANDSHAKE) | |
140 | /* | |
141 | * should not be done for 'Hello Request's, but in that case we'll | |
142 | * ignore the result anyway | |
143 | */ | |
144 | ssl3_finish_mac(s, (unsigned char *)&s->init_buf->data[s->init_off], | |
145 | ret); | |
146 | ||
147 | if (ret == s->init_num) { | |
148 | if (s->msg_callback) | |
149 | s->msg_callback(1, s->version, type, s->init_buf->data, | |
150 | (size_t)(s->init_off + s->init_num), s, | |
151 | s->msg_callback_arg); | |
152 | return (1); | |
153 | } | |
154 | s->init_off += ret; | |
155 | s->init_num -= ret; | |
156 | return (0); | |
157 | } | |
e7ecc7d4 | 158 | |
c44f7540 | 159 | int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen) |
40720ce3 MC |
160 | { |
161 | unsigned char *p, *d; | |
162 | int i; | |
163 | unsigned long l; | |
164 | ||
165 | if (s->state == a) { | |
166 | d = (unsigned char *)s->init_buf->data; | |
167 | p = &(d[4]); | |
168 | ||
169 | i = s->method->ssl3_enc->final_finish_mac(s, | |
170 | &(s->s3->finish_dgst1), | |
171 | &(s->s3->finish_dgst2), | |
172 | sender, slen, | |
173 | s->s3->tmp.finish_md); | |
174 | s->s3->tmp.finish_md_len = i; | |
175 | memcpy(p, s->s3->tmp.finish_md, i); | |
176 | p += i; | |
177 | l = i; | |
178 | ||
179 | /* | |
180 | * Copy the finished so we can use it for renegotiation checks | |
181 | */ | |
182 | if (s->type == SSL_ST_CONNECT) { | |
183 | OPENSSL_assert(i <= EVP_MAX_MD_SIZE); | |
184 | memcpy(s->s3->previous_client_finished, s->s3->tmp.finish_md, i); | |
185 | s->s3->previous_client_finished_len = i; | |
186 | } else { | |
187 | OPENSSL_assert(i <= EVP_MAX_MD_SIZE); | |
188 | memcpy(s->s3->previous_server_finished, s->s3->tmp.finish_md, i); | |
189 | s->s3->previous_server_finished_len = i; | |
190 | } | |
c2b78c31 | 191 | |
bc36ee62 | 192 | #ifdef OPENSSL_SYS_WIN16 |
40720ce3 MC |
193 | /* |
194 | * MSVC 1.5 does not clear the top bytes of the word unless I do | |
195 | * this. | |
196 | */ | |
197 | l &= 0xffff; | |
dfeab068 RE |
198 | #endif |
199 | ||
40720ce3 MC |
200 | *(d++) = SSL3_MT_FINISHED; |
201 | l2n3(l, d); | |
202 | s->init_num = (int)l + 4; | |
203 | s->init_off = 0; | |
d02b48c6 | 204 | |
40720ce3 MC |
205 | s->state = b; |
206 | } | |
d02b48c6 | 207 | |
40720ce3 MC |
208 | /* SSL3_ST_SEND_xxxxxx_HELLO_B */ |
209 | return (ssl3_do_write(s, SSL3_RT_HANDSHAKE)); | |
210 | } | |
d02b48c6 | 211 | |
6b691a5c | 212 | int ssl3_get_finished(SSL *s, int a, int b) |
40720ce3 MC |
213 | { |
214 | int al, i, ok; | |
215 | long n; | |
216 | unsigned char *p; | |
217 | ||
218 | /* | |
219 | * the mac has already been generated when we received the change cipher | |
220 | * spec message and is in s->s3->tmp.peer_finish_md | |
221 | */ | |
222 | ||
223 | /* 64 argument should actually be 36+4 :-) */ | |
224 | n = s->method->ssl_get_message(s, a, b, SSL3_MT_FINISHED, 64, &ok); | |
225 | ||
226 | if (!ok) | |
227 | return ((int)n); | |
228 | ||
229 | /* If this occurs, we have missed a message */ | |
230 | if (!s->s3->change_cipher_spec) { | |
231 | al = SSL_AD_UNEXPECTED_MESSAGE; | |
232 | SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_GOT_A_FIN_BEFORE_A_CCS); | |
233 | goto f_err; | |
234 | } | |
235 | s->s3->change_cipher_spec = 0; | |
236 | ||
237 | p = (unsigned char *)s->init_msg; | |
238 | i = s->s3->tmp.peer_finish_md_len; | |
239 | ||
240 | if (i != n) { | |
241 | al = SSL_AD_DECODE_ERROR; | |
242 | SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_BAD_DIGEST_LENGTH); | |
243 | goto f_err; | |
244 | } | |
245 | ||
246 | if (CRYPTO_memcmp(p, s->s3->tmp.peer_finish_md, i) != 0) { | |
247 | al = SSL_AD_DECRYPT_ERROR; | |
248 | SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_DIGEST_CHECK_FAILED); | |
249 | goto f_err; | |
250 | } | |
251 | ||
252 | /* | |
253 | * Copy the finished so we can use it for renegotiation checks | |
254 | */ | |
255 | if (s->type == SSL_ST_ACCEPT) { | |
256 | OPENSSL_assert(i <= EVP_MAX_MD_SIZE); | |
257 | memcpy(s->s3->previous_client_finished, s->s3->tmp.peer_finish_md, i); | |
258 | s->s3->previous_client_finished_len = i; | |
259 | } else { | |
260 | OPENSSL_assert(i <= EVP_MAX_MD_SIZE); | |
261 | memcpy(s->s3->previous_server_finished, s->s3->tmp.peer_finish_md, i); | |
262 | s->s3->previous_server_finished_len = i; | |
263 | } | |
264 | ||
265 | return (1); | |
266 | f_err: | |
267 | ssl3_send_alert(s, SSL3_AL_FATAL, al); | |
268 | return (0); | |
269 | } | |
d02b48c6 | 270 | |
b558c8d5 TH |
271 | /*- |
272 | * for these 2 messages, we need to | |
40720ce3 MC |
273 | * ssl->enc_read_ctx re-init |
274 | * ssl->s3->read_sequence zero | |
275 | * ssl->s3->read_mac_secret re-init | |
276 | * ssl->session->read_sym_enc assign | |
277 | * ssl->session->read_compression assign | |
278 | * ssl->session->read_hash assign | |
d02b48c6 | 279 | */ |
6b691a5c | 280 | int ssl3_send_change_cipher_spec(SSL *s, int a, int b) |
40720ce3 MC |
281 | { |
282 | unsigned char *p; | |
d02b48c6 | 283 | |
40720ce3 MC |
284 | if (s->state == a) { |
285 | p = (unsigned char *)s->init_buf->data; | |
286 | *p = SSL3_MT_CCS; | |
287 | s->init_num = 1; | |
288 | s->init_off = 0; | |
d02b48c6 | 289 | |
40720ce3 MC |
290 | s->state = b; |
291 | } | |
d02b48c6 | 292 | |
40720ce3 MC |
293 | /* SSL3_ST_CW_CHANGE_B */ |
294 | return (ssl3_do_write(s, SSL3_RT_CHANGE_CIPHER_SPEC)); | |
295 | } | |
d02b48c6 | 296 | |
ab8fe43f | 297 | static int ssl3_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) |
40720ce3 MC |
298 | { |
299 | int n; | |
300 | unsigned char *p; | |
301 | ||
302 | n = i2d_X509(x, NULL); | |
303 | if (!BUF_MEM_grow_clean(buf, (int)(n + (*l) + 3))) { | |
304 | SSLerr(SSL_F_SSL3_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); | |
305 | return (-1); | |
306 | } | |
307 | p = (unsigned char *)&(buf->data[*l]); | |
308 | l2n3(n, p); | |
309 | i2d_X509(x, &p); | |
310 | *l += n + 3; | |
311 | ||
312 | return (0); | |
313 | } | |
ab8fe43f | 314 | |
6b691a5c | 315 | unsigned long ssl3_output_cert_chain(SSL *s, X509 *x) |
40720ce3 MC |
316 | { |
317 | unsigned char *p; | |
318 | int i; | |
319 | unsigned long l = 7; | |
320 | BUF_MEM *buf; | |
321 | int no_chain; | |
322 | ||
323 | if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs) | |
324 | no_chain = 1; | |
325 | else | |
326 | no_chain = 0; | |
327 | ||
328 | /* TLSv1 sends a chain with nothing in it, instead of an alert */ | |
329 | buf = s->init_buf; | |
330 | if (!BUF_MEM_grow_clean(buf, 10)) { | |
331 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN, ERR_R_BUF_LIB); | |
332 | return (0); | |
333 | } | |
334 | if (x != NULL) { | |
335 | if (no_chain) { | |
336 | if (ssl3_add_cert_to_buf(buf, &l, x)) | |
337 | return (0); | |
338 | } else { | |
339 | X509_STORE_CTX xs_ctx; | |
340 | ||
341 | if (!X509_STORE_CTX_init(&xs_ctx, s->ctx->cert_store, x, NULL)) { | |
342 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN, ERR_R_X509_LIB); | |
343 | return (0); | |
344 | } | |
345 | X509_verify_cert(&xs_ctx); | |
346 | /* Don't leave errors in the queue */ | |
347 | ERR_clear_error(); | |
348 | for (i = 0; i < sk_X509_num(xs_ctx.chain); i++) { | |
349 | x = sk_X509_value(xs_ctx.chain, i); | |
350 | ||
351 | if (ssl3_add_cert_to_buf(buf, &l, x)) { | |
352 | X509_STORE_CTX_cleanup(&xs_ctx); | |
353 | return 0; | |
354 | } | |
355 | } | |
356 | X509_STORE_CTX_cleanup(&xs_ctx); | |
357 | } | |
358 | } | |
359 | /* Thawte special :-) */ | |
360 | for (i = 0; i < sk_X509_num(s->ctx->extra_certs); i++) { | |
361 | x = sk_X509_value(s->ctx->extra_certs, i); | |
362 | if (ssl3_add_cert_to_buf(buf, &l, x)) | |
363 | return (0); | |
364 | } | |
365 | ||
366 | l -= 7; | |
367 | p = (unsigned char *)&(buf->data[4]); | |
368 | l2n3(l, p); | |
369 | l += 3; | |
370 | p = (unsigned char *)&(buf->data[0]); | |
371 | *(p++) = SSL3_MT_CERTIFICATE; | |
372 | l2n3(l, p); | |
373 | l += 4; | |
374 | return (l); | |
375 | } | |
376 | ||
377 | /* | |
378 | * Obtain handshake message of message type 'mt' (any if mt == -1), maximum | |
379 | * acceptable body length 'max'. The first four bytes (msg_type and length) | |
380 | * are read in state 'st1', the body is read in state 'stn'. | |
52732b38 | 381 | */ |
6b691a5c | 382 | long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok) |
40720ce3 MC |
383 | { |
384 | unsigned char *p; | |
385 | unsigned long l; | |
386 | long n; | |
387 | int i, al; | |
388 | ||
389 | if (s->s3->tmp.reuse_message) { | |
390 | s->s3->tmp.reuse_message = 0; | |
391 | if ((mt >= 0) && (s->s3->tmp.message_type != mt)) { | |
392 | al = SSL_AD_UNEXPECTED_MESSAGE; | |
393 | SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_UNEXPECTED_MESSAGE); | |
394 | goto f_err; | |
395 | } | |
396 | *ok = 1; | |
397 | s->init_msg = s->init_buf->data + 4; | |
398 | s->init_num = (int)s->s3->tmp.message_size; | |
399 | return s->init_num; | |
400 | } | |
401 | ||
402 | p = (unsigned char *)s->init_buf->data; | |
403 | ||
404 | if (s->state == st1) { /* s->init_num < 4 */ | |
405 | int skip_message; | |
406 | ||
407 | do { | |
408 | while (s->init_num < 4) { | |
409 | i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, | |
410 | &p[s->init_num], | |
411 | 4 - s->init_num, 0); | |
412 | if (i <= 0) { | |
413 | s->rwstate = SSL_READING; | |
414 | *ok = 0; | |
415 | return i; | |
416 | } | |
417 | s->init_num += i; | |
418 | } | |
419 | ||
420 | skip_message = 0; | |
421 | if (!s->server) | |
422 | if (p[0] == SSL3_MT_HELLO_REQUEST) | |
423 | /* | |
424 | * The server may always send 'Hello Request' messages -- | |
425 | * we are doing a handshake anyway now, so ignore them if | |
426 | * their format is correct. Does not count for 'Finished' | |
427 | * MAC. | |
428 | */ | |
429 | if (p[1] == 0 && p[2] == 0 && p[3] == 0) { | |
430 | s->init_num = 0; | |
431 | skip_message = 1; | |
432 | ||
433 | if (s->msg_callback) | |
434 | s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, | |
435 | p, 4, s, s->msg_callback_arg); | |
436 | } | |
437 | } | |
438 | while (skip_message); | |
439 | ||
440 | /* s->init_num == 4 */ | |
441 | ||
442 | if ((mt >= 0) && (*p != mt)) { | |
443 | al = SSL_AD_UNEXPECTED_MESSAGE; | |
444 | SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_UNEXPECTED_MESSAGE); | |
445 | goto f_err; | |
446 | } | |
447 | if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) && | |
448 | (st1 == SSL3_ST_SR_CERT_A) && (stn == SSL3_ST_SR_CERT_B)) { | |
449 | /* | |
450 | * At this point we have got an MS SGC second client hello (maybe | |
451 | * we should always allow the client to start a new handshake?). | |
452 | * We need to restart the mac. Don't increment | |
453 | * {num,total}_renegotiations because we have not completed the | |
454 | * handshake. | |
455 | */ | |
456 | ssl3_init_finished_mac(s); | |
457 | } | |
458 | ||
459 | s->s3->tmp.message_type = *(p++); | |
460 | ||
461 | n2l3(p, l); | |
462 | if (l > (unsigned long)max) { | |
463 | al = SSL_AD_ILLEGAL_PARAMETER; | |
464 | SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_EXCESSIVE_MESSAGE_SIZE); | |
465 | goto f_err; | |
466 | } | |
467 | if (l > (INT_MAX - 4)) { /* BUF_MEM_grow takes an 'int' parameter */ | |
468 | al = SSL_AD_ILLEGAL_PARAMETER; | |
469 | SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_EXCESSIVE_MESSAGE_SIZE); | |
470 | goto f_err; | |
471 | } | |
472 | if (l && !BUF_MEM_grow_clean(s->init_buf, (int)l + 4)) { | |
473 | SSLerr(SSL_F_SSL3_GET_MESSAGE, ERR_R_BUF_LIB); | |
474 | goto err; | |
475 | } | |
476 | s->s3->tmp.message_size = l; | |
477 | s->state = stn; | |
478 | ||
479 | s->init_msg = s->init_buf->data + 4; | |
480 | s->init_num = 0; | |
481 | } | |
482 | ||
483 | /* next state (stn) */ | |
484 | p = s->init_msg; | |
485 | n = s->s3->tmp.message_size - s->init_num; | |
486 | while (n > 0) { | |
487 | i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, &p[s->init_num], | |
488 | n, 0); | |
489 | if (i <= 0) { | |
490 | s->rwstate = SSL_READING; | |
491 | *ok = 0; | |
492 | return i; | |
493 | } | |
494 | s->init_num += i; | |
495 | n -= i; | |
496 | } | |
497 | ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4); | |
498 | if (s->msg_callback) | |
499 | s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, | |
500 | (size_t)s->init_num + 4, s, s->msg_callback_arg); | |
501 | *ok = 1; | |
502 | return s->init_num; | |
503 | f_err: | |
504 | ssl3_send_alert(s, SSL3_AL_FATAL, al); | |
505 | err: | |
506 | *ok = 0; | |
507 | return (-1); | |
508 | } | |
d02b48c6 | 509 | |
6b691a5c | 510 | int ssl_cert_type(X509 *x, EVP_PKEY *pkey) |
40720ce3 MC |
511 | { |
512 | EVP_PKEY *pk; | |
513 | int ret = -1, i; | |
514 | ||
515 | if (pkey == NULL) | |
516 | pk = X509_get_pubkey(x); | |
517 | else | |
518 | pk = pkey; | |
519 | if (pk == NULL) | |
520 | goto err; | |
521 | ||
522 | i = pk->type; | |
523 | if (i == EVP_PKEY_RSA) { | |
524 | ret = SSL_PKEY_RSA_ENC; | |
525 | } else if (i == EVP_PKEY_DSA) { | |
526 | ret = SSL_PKEY_DSA_SIGN; | |
527 | } | |
ea262260 | 528 | #ifndef OPENSSL_NO_EC |
40720ce3 MC |
529 | else if (i == EVP_PKEY_EC) { |
530 | ret = SSL_PKEY_ECC; | |
531 | } | |
ea262260 | 532 | #endif |
d02b48c6 | 533 | |
40720ce3 MC |
534 | err: |
535 | if (!pkey) | |
536 | EVP_PKEY_free(pk); | |
537 | return (ret); | |
538 | } | |
d02b48c6 | 539 | |
6b691a5c | 540 | int ssl_verify_alarm_type(long type) |
40720ce3 MC |
541 | { |
542 | int al; | |
543 | ||
544 | switch (type) { | |
545 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: | |
546 | case X509_V_ERR_UNABLE_TO_GET_CRL: | |
547 | case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: | |
548 | al = SSL_AD_UNKNOWN_CA; | |
549 | break; | |
550 | case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE: | |
551 | case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE: | |
552 | case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY: | |
553 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: | |
554 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: | |
555 | case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD: | |
556 | case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD: | |
557 | case X509_V_ERR_CERT_NOT_YET_VALID: | |
558 | case X509_V_ERR_CRL_NOT_YET_VALID: | |
559 | case X509_V_ERR_CERT_UNTRUSTED: | |
560 | case X509_V_ERR_CERT_REJECTED: | |
561 | al = SSL_AD_BAD_CERTIFICATE; | |
562 | break; | |
563 | case X509_V_ERR_CERT_SIGNATURE_FAILURE: | |
564 | case X509_V_ERR_CRL_SIGNATURE_FAILURE: | |
565 | al = SSL_AD_DECRYPT_ERROR; | |
566 | break; | |
567 | case X509_V_ERR_CERT_HAS_EXPIRED: | |
568 | case X509_V_ERR_CRL_HAS_EXPIRED: | |
569 | al = SSL_AD_CERTIFICATE_EXPIRED; | |
570 | break; | |
571 | case X509_V_ERR_CERT_REVOKED: | |
572 | al = SSL_AD_CERTIFICATE_REVOKED; | |
573 | break; | |
574 | case X509_V_ERR_OUT_OF_MEM: | |
575 | al = SSL_AD_INTERNAL_ERROR; | |
576 | break; | |
577 | case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: | |
578 | case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: | |
579 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: | |
580 | case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE: | |
581 | case X509_V_ERR_CERT_CHAIN_TOO_LONG: | |
582 | case X509_V_ERR_PATH_LENGTH_EXCEEDED: | |
583 | case X509_V_ERR_INVALID_CA: | |
584 | al = SSL_AD_UNKNOWN_CA; | |
585 | break; | |
586 | case X509_V_ERR_APPLICATION_VERIFICATION: | |
587 | al = SSL_AD_HANDSHAKE_FAILURE; | |
588 | break; | |
589 | case X509_V_ERR_INVALID_PURPOSE: | |
590 | al = SSL_AD_UNSUPPORTED_CERTIFICATE; | |
591 | break; | |
592 | default: | |
593 | al = SSL_AD_CERTIFICATE_UNKNOWN; | |
594 | break; | |
595 | } | |
596 | return (al); | |
597 | } | |
d02b48c6 | 598 | |
6b691a5c | 599 | int ssl3_setup_buffers(SSL *s) |
40720ce3 MC |
600 | { |
601 | unsigned char *p; | |
602 | unsigned int extra, headerlen; | |
603 | size_t len; | |
604 | ||
605 | if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER) | |
606 | headerlen = DTLS1_RT_HEADER_LENGTH; | |
607 | else | |
608 | headerlen = SSL3_RT_HEADER_LENGTH; | |
609 | ||
610 | if (s->s3->rbuf.buf == NULL) { | |
611 | if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) | |
612 | extra = SSL3_RT_MAX_EXTRA; | |
613 | else | |
614 | extra = 0; | |
615 | len = SSL3_RT_MAX_PACKET_SIZE + extra; | |
616 | if ((p = OPENSSL_malloc(len)) == NULL) | |
617 | goto err; | |
618 | s->s3->rbuf.buf = p; | |
619 | s->s3->rbuf.len = len; | |
620 | } | |
621 | ||
622 | if (s->s3->wbuf.buf == NULL) { | |
623 | len = SSL3_RT_MAX_PACKET_SIZE; | |
624 | len += headerlen + 256; /* extra space for empty fragment */ | |
625 | if ((p = OPENSSL_malloc(len)) == NULL) | |
626 | goto err; | |
627 | s->s3->wbuf.buf = p; | |
628 | s->s3->wbuf.len = len; | |
629 | } | |
630 | s->packet = &(s->s3->rbuf.buf[0]); | |
631 | return (1); | |
632 | err: | |
633 | SSLerr(SSL_F_SSL3_SETUP_BUFFERS, ERR_R_MALLOC_FAILURE); | |
634 | return (0); | |
635 | } |