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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. | |
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 | */ | |
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 | |
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 | */ | |
ea262260 BM |
111 | /* ==================================================================== |
112 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
113 | * ECC cipher suite support in OpenSSL originally developed by | |
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 | |
a661b653 | 127 | /* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */ |
e7ecc7d4 BM |
128 | int ssl3_do_write(SSL *s, int type) |
129 | { | |
130 | int ret; | |
131 | ||
132 | ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off], | |
133 | s->init_num); | |
134 | if (ret < 0) return(-1); | |
135 | if (type == SSL3_RT_HANDSHAKE) | |
136 | /* should not be done for 'Hello Request's, but in that case | |
137 | * we'll ignore the result anyway */ | |
72b60351 | 138 | ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret); |
e7ecc7d4 BM |
139 | |
140 | if (ret == s->init_num) | |
a661b653 BM |
141 | { |
142 | if (s->msg_callback) | |
cf3a5ceb | 143 | s->msg_callback(1, s->version, type, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg); |
e7ecc7d4 | 144 | return(1); |
a661b653 | 145 | } |
e7ecc7d4 BM |
146 | s->init_off+=ret; |
147 | s->init_num-=ret; | |
148 | return(0); | |
149 | } | |
150 | ||
c44f7540 | 151 | int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen) |
d02b48c6 RE |
152 | { |
153 | unsigned char *p,*d; | |
154 | int i; | |
155 | unsigned long l; | |
156 | ||
157 | if (s->state == a) | |
158 | { | |
159 | d=(unsigned char *)s->init_buf->data; | |
160 | p= &(d[4]); | |
161 | ||
58964a49 | 162 | i=s->method->ssl3_enc->final_finish_mac(s, |
9fb617e2 BM |
163 | sender,slen,s->s3->tmp.finish_md); |
164 | s->s3->tmp.finish_md_len = i; | |
165 | memcpy(p, s->s3->tmp.finish_md, i); | |
d02b48c6 RE |
166 | p+=i; |
167 | l=i; | |
d02b48c6 | 168 | |
bc36ee62 | 169 | #ifdef OPENSSL_SYS_WIN16 |
dfeab068 RE |
170 | /* MSVC 1.5 does not clear the top bytes of the word unless |
171 | * I do this. | |
172 | */ | |
173 | l&=0xffff; | |
174 | #endif | |
175 | ||
d02b48c6 RE |
176 | *(d++)=SSL3_MT_FINISHED; |
177 | l2n3(l,d); | |
178 | s->init_num=(int)l+4; | |
179 | s->init_off=0; | |
180 | ||
181 | s->state=b; | |
182 | } | |
183 | ||
184 | /* SSL3_ST_SEND_xxxxxx_HELLO_B */ | |
185 | return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); | |
186 | } | |
187 | ||
6b691a5c | 188 | int ssl3_get_finished(SSL *s, int a, int b) |
d02b48c6 | 189 | { |
58964a49 | 190 | int al,i,ok; |
d02b48c6 RE |
191 | long n; |
192 | unsigned char *p; | |
193 | ||
194 | /* the mac has already been generated when we received the | |
9fb617e2 | 195 | * change cipher spec message and is in s->s3->tmp.peer_finish_md |
d02b48c6 RE |
196 | */ |
197 | ||
36d16f8e | 198 | n=s->method->ssl_get_message(s, |
d02b48c6 RE |
199 | a, |
200 | b, | |
201 | SSL3_MT_FINISHED, | |
202 | 64, /* should actually be 36+4 :-) */ | |
203 | &ok); | |
204 | ||
205 | if (!ok) return((int)n); | |
206 | ||
b35e9050 | 207 | /* If this occurs, we have missed a message */ |
d02b48c6 RE |
208 | if (!s->s3->change_cipher_spec) |
209 | { | |
58964a49 | 210 | al=SSL_AD_UNEXPECTED_MESSAGE; |
d02b48c6 RE |
211 | SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS); |
212 | goto f_err; | |
213 | } | |
214 | s->s3->change_cipher_spec=0; | |
215 | ||
48948d53 | 216 | p = (unsigned char *)s->init_msg; |
9fb617e2 | 217 | i = s->s3->tmp.peer_finish_md_len; |
d02b48c6 | 218 | |
58964a49 | 219 | if (i != n) |
d02b48c6 | 220 | { |
58964a49 | 221 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
222 | SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH); |
223 | goto f_err; | |
224 | } | |
225 | ||
9fb617e2 | 226 | if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0) |
d02b48c6 | 227 | { |
58964a49 | 228 | al=SSL_AD_DECRYPT_ERROR; |
d02b48c6 RE |
229 | SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED); |
230 | goto f_err; | |
231 | } | |
232 | ||
233 | return(1); | |
234 | f_err: | |
235 | ssl3_send_alert(s,SSL3_AL_FATAL,al); | |
236 | return(0); | |
237 | } | |
238 | ||
239 | /* for these 2 messages, we need to | |
240 | * ssl->enc_read_ctx re-init | |
241 | * ssl->s3->read_sequence zero | |
242 | * ssl->s3->read_mac_secret re-init | |
243 | * ssl->session->read_sym_enc assign | |
244 | * ssl->session->read_compression assign | |
245 | * ssl->session->read_hash assign | |
246 | */ | |
6b691a5c | 247 | int ssl3_send_change_cipher_spec(SSL *s, int a, int b) |
d02b48c6 RE |
248 | { |
249 | unsigned char *p; | |
250 | ||
251 | if (s->state == a) | |
252 | { | |
253 | p=(unsigned char *)s->init_buf->data; | |
254 | *p=SSL3_MT_CCS; | |
255 | s->init_num=1; | |
256 | s->init_off=0; | |
257 | ||
258 | s->state=b; | |
259 | } | |
260 | ||
261 | /* SSL3_ST_CW_CHANGE_B */ | |
262 | return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC)); | |
263 | } | |
264 | ||
d2f6d282 DSH |
265 | static int ssl3_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) |
266 | { | |
267 | int n; | |
268 | unsigned char *p; | |
269 | ||
270 | n=i2d_X509(x,NULL); | |
271 | if (!BUF_MEM_grow_clean(buf,(int)(n+(*l)+3))) | |
272 | { | |
273 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); | |
274 | return(-1); | |
275 | } | |
276 | p=(unsigned char *)&(buf->data[*l]); | |
277 | l2n3(n,p); | |
278 | i2d_X509(x,&p); | |
279 | *l+=n+3; | |
280 | ||
281 | return(0); | |
282 | } | |
283 | ||
6b691a5c | 284 | unsigned long ssl3_output_cert_chain(SSL *s, X509 *x) |
d02b48c6 RE |
285 | { |
286 | unsigned char *p; | |
d2f6d282 | 287 | int i; |
d02b48c6 RE |
288 | unsigned long l=7; |
289 | BUF_MEM *buf; | |
cf56663f DSH |
290 | int no_chain; |
291 | ||
292 | if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs) | |
293 | no_chain = 1; | |
294 | else | |
295 | no_chain = 0; | |
296 | ||
58964a49 | 297 | /* TLSv1 sends a chain with nothing in it, instead of an alert */ |
d02b48c6 | 298 | buf=s->init_buf; |
54a656ef | 299 | if (!BUF_MEM_grow_clean(buf,10)) |
d02b48c6 | 300 | { |
58964a49 RE |
301 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); |
302 | return(0); | |
303 | } | |
304 | if (x != NULL) | |
305 | { | |
d2f6d282 | 306 | if (no_chain) |
79aa04ef | 307 | { |
d2f6d282 DSH |
308 | if (ssl3_add_cert_to_buf(buf, &l, x)) |
309 | return(0); | |
79aa04ef | 310 | } |
d2f6d282 | 311 | else |
d02b48c6 | 312 | { |
d2f6d282 DSH |
313 | X509_STORE_CTX xs_ctx; |
314 | ||
315 | if (!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,x,NULL)) | |
58964a49 | 316 | { |
d2f6d282 | 317 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB); |
58964a49 RE |
318 | return(0); |
319 | } | |
d2f6d282 DSH |
320 | X509_verify_cert(&xs_ctx); |
321 | for (i=0; i < sk_X509_num(xs_ctx.chain); i++) | |
322 | { | |
323 | x = sk_X509_value(xs_ctx.chain, i); | |
324 | ||
325 | if (ssl3_add_cert_to_buf(buf, &l, x)) | |
326 | { | |
327 | X509_STORE_CTX_cleanup(&xs_ctx); | |
328 | return 0; | |
329 | } | |
330 | } | |
cf56663f | 331 | X509_STORE_CTX_cleanup(&xs_ctx); |
d2f6d282 | 332 | } |
58964a49 | 333 | } |
651d0aff | 334 | /* Thawte special :-) */ |
f73e07cf | 335 | for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++) |
dfeab068 | 336 | { |
f73e07cf | 337 | x=sk_X509_value(s->ctx->extra_certs,i); |
d2f6d282 | 338 | if (ssl3_add_cert_to_buf(buf, &l, x)) |
dfeab068 | 339 | return(0); |
dfeab068 RE |
340 | } |
341 | ||
d02b48c6 RE |
342 | l-=7; |
343 | p=(unsigned char *)&(buf->data[4]); | |
344 | l2n3(l,p); | |
345 | l+=3; | |
346 | p=(unsigned char *)&(buf->data[0]); | |
347 | *(p++)=SSL3_MT_CERTIFICATE; | |
348 | l2n3(l,p); | |
349 | l+=4; | |
350 | return(l); | |
351 | } | |
352 | ||
52732b38 BM |
353 | /* Obtain handshake message of message type 'mt' (any if mt == -1), |
354 | * maximum acceptable body length 'max'. | |
355 | * The first four bytes (msg_type and length) are read in state 'st1', | |
356 | * the body is read in state 'stn'. | |
357 | */ | |
6b691a5c | 358 | long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok) |
d02b48c6 RE |
359 | { |
360 | unsigned char *p; | |
361 | unsigned long l; | |
362 | long n; | |
363 | int i,al; | |
364 | ||
365 | if (s->s3->tmp.reuse_message) | |
366 | { | |
367 | s->s3->tmp.reuse_message=0; | |
368 | if ((mt >= 0) && (s->s3->tmp.message_type != mt)) | |
369 | { | |
58964a49 | 370 | al=SSL_AD_UNEXPECTED_MESSAGE; |
d02b48c6 RE |
371 | SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE); |
372 | goto f_err; | |
373 | } | |
374 | *ok=1; | |
48948d53 | 375 | s->init_msg = s->init_buf->data + 4; |
8f71fb8d BM |
376 | s->init_num = (int)s->s3->tmp.message_size; |
377 | return s->init_num; | |
d02b48c6 RE |
378 | } |
379 | ||
380 | p=(unsigned char *)s->init_buf->data; | |
381 | ||
b35e9050 | 382 | if (s->state == st1) /* s->init_num < 4 */ |
d02b48c6 | 383 | { |
45206340 BM |
384 | int skip_message; |
385 | ||
386 | do | |
d02b48c6 | 387 | { |
45206340 | 388 | while (s->init_num < 4) |
b35e9050 | 389 | { |
36d16f8e BL |
390 | i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE, |
391 | &p[s->init_num],4 - s->init_num, 0); | |
45206340 BM |
392 | if (i <= 0) |
393 | { | |
394 | s->rwstate=SSL_READING; | |
395 | *ok = 0; | |
396 | return i; | |
397 | } | |
398 | s->init_num+=i; | |
b35e9050 | 399 | } |
45206340 BM |
400 | |
401 | skip_message = 0; | |
402 | if (!s->server) | |
403 | if (p[0] == SSL3_MT_HELLO_REQUEST) | |
404 | /* The server may always send 'Hello Request' messages -- | |
405 | * we are doing a handshake anyway now, so ignore them | |
745c70e5 BM |
406 | * if their format is correct. Does not count for |
407 | * 'Finished' MAC. */ | |
45206340 | 408 | if (p[1] == 0 && p[2] == 0 &&p[3] == 0) |
3b0b5aba BM |
409 | { |
410 | s->init_num = 0; | |
45206340 | 411 | skip_message = 1; |
a661b653 BM |
412 | |
413 | if (s->msg_callback) | |
414 | s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg); | |
3b0b5aba | 415 | } |
d02b48c6 | 416 | } |
45206340 | 417 | while (skip_message); |
d02b48c6 | 418 | |
745c70e5 BM |
419 | /* s->init_num == 4 */ |
420 | ||
d02b48c6 RE |
421 | if ((mt >= 0) && (*p != mt)) |
422 | { | |
58964a49 | 423 | al=SSL_AD_UNEXPECTED_MESSAGE; |
d02b48c6 RE |
424 | SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE); |
425 | goto f_err; | |
426 | } | |
a2a01589 | 427 | if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) && |
3d14b9d0 DSH |
428 | (st1 == SSL3_ST_SR_CERT_A) && |
429 | (stn == SSL3_ST_SR_CERT_B)) | |
430 | { | |
431 | /* At this point we have got an MS SGC second client | |
745c70e5 BM |
432 | * hello (maybe we should always allow the client to |
433 | * start a new handshake?). We need to restart the mac. | |
a2a01589 BM |
434 | * Don't increment {num,total}_renegotiations because |
435 | * we have not completed the handshake. */ | |
3d14b9d0 | 436 | ssl3_init_finished_mac(s); |
3d14b9d0 | 437 | } |
745c70e5 | 438 | |
d02b48c6 RE |
439 | s->s3->tmp.message_type= *(p++); |
440 | ||
441 | n2l3(p,l); | |
442 | if (l > (unsigned long)max) | |
443 | { | |
58964a49 | 444 | al=SSL_AD_ILLEGAL_PARAMETER; |
d02b48c6 RE |
445 | SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE); |
446 | goto f_err; | |
447 | } | |
48948d53 BM |
448 | if (l > (INT_MAX-4)) /* BUF_MEM_grow takes an 'int' parameter */ |
449 | { | |
450 | al=SSL_AD_ILLEGAL_PARAMETER; | |
451 | SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE); | |
452 | goto f_err; | |
453 | } | |
54a656ef | 454 | if (l && !BUF_MEM_grow_clean(s->init_buf,(int)l+4)) |
d02b48c6 RE |
455 | { |
456 | SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB); | |
457 | goto err; | |
458 | } | |
459 | s->s3->tmp.message_size=l; | |
460 | s->state=stn; | |
461 | ||
48948d53 BM |
462 | s->init_msg = s->init_buf->data + 4; |
463 | s->init_num = 0; | |
d02b48c6 RE |
464 | } |
465 | ||
466 | /* next state (stn) */ | |
48948d53 BM |
467 | p = s->init_msg; |
468 | n = s->s3->tmp.message_size - s->init_num; | |
b35e9050 | 469 | while (n > 0) |
d02b48c6 | 470 | { |
36d16f8e | 471 | i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0); |
b35e9050 | 472 | if (i <= 0) |
d02b48c6 | 473 | { |
b35e9050 BM |
474 | s->rwstate=SSL_READING; |
475 | *ok = 0; | |
476 | return i; | |
d02b48c6 | 477 | } |
b35e9050 BM |
478 | s->init_num += i; |
479 | n -= i; | |
d02b48c6 | 480 | } |
48948d53 | 481 | ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4); |
a661b653 BM |
482 | if (s->msg_callback) |
483 | s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg); | |
d02b48c6 | 484 | *ok=1; |
b35e9050 | 485 | return s->init_num; |
d02b48c6 RE |
486 | f_err: |
487 | ssl3_send_alert(s,SSL3_AL_FATAL,al); | |
488 | err: | |
489 | *ok=0; | |
490 | return(-1); | |
491 | } | |
492 | ||
6b691a5c | 493 | int ssl_cert_type(X509 *x, EVP_PKEY *pkey) |
d02b48c6 RE |
494 | { |
495 | EVP_PKEY *pk; | |
6049399b | 496 | int ret= -1,i; |
d02b48c6 RE |
497 | |
498 | if (pkey == NULL) | |
499 | pk=X509_get_pubkey(x); | |
500 | else | |
501 | pk=pkey; | |
502 | if (pk == NULL) goto err; | |
503 | ||
504 | i=pk->type; | |
505 | if (i == EVP_PKEY_RSA) | |
506 | { | |
507 | ret=SSL_PKEY_RSA_ENC; | |
d02b48c6 RE |
508 | } |
509 | else if (i == EVP_PKEY_DSA) | |
510 | { | |
511 | ret=SSL_PKEY_DSA_SIGN; | |
512 | } | |
ea262260 | 513 | #ifndef OPENSSL_NO_EC |
5488bb61 | 514 | else if (i == EVP_PKEY_EC) |
ea262260 BM |
515 | { |
516 | ret = SSL_PKEY_ECC; | |
81025661 | 517 | } |
ea262260 | 518 | #endif |
81025661 DSH |
519 | else if (i == NID_id_GostR3410_94 || i == NID_id_GostR3410_94_cc) |
520 | { | |
521 | ret = SSL_PKEY_GOST94; | |
522 | } | |
523 | else if (i == NID_id_GostR3410_2001 || i == NID_id_GostR3410_2001_cc) | |
524 | { | |
525 | ret = SSL_PKEY_GOST01; | |
526 | } | |
d02b48c6 | 527 | err: |
a8236c8c | 528 | if(!pkey) EVP_PKEY_free(pk); |
d02b48c6 RE |
529 | return(ret); |
530 | } | |
531 | ||
6b691a5c | 532 | int ssl_verify_alarm_type(long type) |
d02b48c6 RE |
533 | { |
534 | int al; | |
535 | ||
536 | switch(type) | |
537 | { | |
538 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: | |
58964a49 | 539 | case X509_V_ERR_UNABLE_TO_GET_CRL: |
b545dc67 | 540 | case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: |
58964a49 RE |
541 | al=SSL_AD_UNKNOWN_CA; |
542 | break; | |
d02b48c6 | 543 | case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE: |
58964a49 | 544 | case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE: |
d02b48c6 | 545 | case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY: |
d02b48c6 RE |
546 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: |
547 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: | |
58964a49 RE |
548 | case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD: |
549 | case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD: | |
550 | case X509_V_ERR_CERT_NOT_YET_VALID: | |
551 | case X509_V_ERR_CRL_NOT_YET_VALID: | |
11c26ecf LJ |
552 | case X509_V_ERR_CERT_UNTRUSTED: |
553 | case X509_V_ERR_CERT_REJECTED: | |
58964a49 RE |
554 | al=SSL_AD_BAD_CERTIFICATE; |
555 | break; | |
556 | case X509_V_ERR_CERT_SIGNATURE_FAILURE: | |
557 | case X509_V_ERR_CRL_SIGNATURE_FAILURE: | |
558 | al=SSL_AD_DECRYPT_ERROR; | |
559 | break; | |
560 | case X509_V_ERR_CERT_HAS_EXPIRED: | |
561 | case X509_V_ERR_CRL_HAS_EXPIRED: | |
562 | al=SSL_AD_CERTIFICATE_EXPIRED; | |
563 | break; | |
564 | case X509_V_ERR_CERT_REVOKED: | |
565 | al=SSL_AD_CERTIFICATE_REVOKED; | |
566 | break; | |
567 | case X509_V_ERR_OUT_OF_MEM: | |
568 | al=SSL_AD_INTERNAL_ERROR; | |
569 | break; | |
d02b48c6 RE |
570 | case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: |
571 | case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: | |
572 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: | |
573 | case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE: | |
58964a49 | 574 | case X509_V_ERR_CERT_CHAIN_TOO_LONG: |
11c26ecf LJ |
575 | case X509_V_ERR_PATH_LENGTH_EXCEEDED: |
576 | case X509_V_ERR_INVALID_CA: | |
58964a49 | 577 | al=SSL_AD_UNKNOWN_CA; |
d02b48c6 | 578 | break; |
58964a49 RE |
579 | case X509_V_ERR_APPLICATION_VERIFICATION: |
580 | al=SSL_AD_HANDSHAKE_FAILURE; | |
d02b48c6 | 581 | break; |
11c26ecf LJ |
582 | case X509_V_ERR_INVALID_PURPOSE: |
583 | al=SSL_AD_UNSUPPORTED_CERTIFICATE; | |
584 | break; | |
d02b48c6 | 585 | default: |
58964a49 | 586 | al=SSL_AD_CERTIFICATE_UNKNOWN; |
d02b48c6 RE |
587 | break; |
588 | } | |
589 | return(al); | |
590 | } | |
591 | ||
474b3b1c | 592 | #ifndef OPENSSL_NO_BUF_FREELISTS |
8671b898 BL |
593 | /* On some platforms, malloc() performance is bad enough that you can't just |
594 | * free() and malloc() buffers all the time, so we need to use freelists from | |
595 | * unused buffers. Currently, each freelist holds memory chunks of only a | |
596 | * given size (list->chunklen); other sized chunks are freed and malloced. | |
597 | * This doesn't help much if you're using many different SSL option settings | |
598 | * with a given context. (The options affecting buffer size are | |
599 | * max_send_fragment, read buffer vs write buffer, | |
600 | * SSL_OP_MICROSOFT_BIG_WRITE_BUFFER, SSL_OP_NO_COMPRESSION, and | |
601 | * SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS.) Using a separate freelist for every | |
602 | * possible size is not an option, since max_send_fragment can take on many | |
603 | * different values. | |
604 | * | |
605 | * If you are on a platform with a slow malloc(), and you're using SSL | |
606 | * connections with many different settings for these options, and you need to | |
607 | * use the SSL_MOD_RELEASE_BUFFERS feature, you have a few options: | |
608 | * - Link against a faster malloc implementation. | |
609 | * - Use a separate SSL_CTX for each option set. | |
610 | * - Improve this code. | |
611 | */ | |
612 | static void * | |
613 | freelist_extract(SSL_CTX *ctx, int for_read, int sz) | |
614 | { | |
615 | SSL3_BUF_FREELIST *list; | |
616 | SSL3_BUF_FREELIST_ENTRY *ent = NULL; | |
617 | void *result = NULL; | |
618 | ||
619 | CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); | |
620 | list = for_read ? ctx->rbuf_freelist : ctx->wbuf_freelist; | |
99649b59 | 621 | if (list != NULL && sz == (int)list->chunklen) |
8671b898 BL |
622 | ent = list->head; |
623 | if (ent != NULL) | |
624 | { | |
625 | list->head = ent->next; | |
626 | result = ent; | |
627 | if (--list->len == 0) | |
628 | list->chunklen = 0; | |
629 | } | |
630 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); | |
631 | if (!result) | |
632 | result = OPENSSL_malloc(sz); | |
633 | return result; | |
634 | } | |
635 | ||
636 | static void | |
637 | freelist_insert(SSL_CTX *ctx, int for_read, size_t sz, void *mem) | |
638 | { | |
639 | SSL3_BUF_FREELIST *list; | |
640 | SSL3_BUF_FREELIST_ENTRY *ent; | |
641 | ||
642 | CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); | |
643 | list = for_read ? ctx->rbuf_freelist : ctx->wbuf_freelist; | |
644 | if (list != NULL && | |
645 | (sz == list->chunklen || list->chunklen == 0) && | |
646 | list->len < ctx->freelist_max_len && | |
647 | sz >= sizeof(*ent)) | |
648 | { | |
649 | list->chunklen = sz; | |
650 | ent = mem; | |
651 | ent->next = list->head; | |
652 | list->head = ent; | |
653 | ++list->len; | |
654 | mem = NULL; | |
655 | } | |
656 | ||
657 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); | |
658 | if (mem) | |
659 | OPENSSL_free(mem); | |
660 | } | |
661 | #else | |
662 | #define freelist_extract(c,fr,sz) OPENSSL_malloc(sz) | |
663 | #define freelist_insert(c,fr,sz,m) OPENSSL_free(m) | |
664 | #endif | |
665 | ||
666 | int ssl3_setup_read_buffer(SSL *s) | |
d02b48c6 RE |
667 | { |
668 | unsigned char *p; | |
a4d64c7f AP |
669 | size_t len,align=0; |
670 | ||
671 | #if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0 | |
672 | align = (-SSL3_RT_HEADER_LENGTH)&(SSL3_ALIGN_PAYLOAD-1); | |
673 | #endif | |
d02b48c6 RE |
674 | |
675 | if (s->s3->rbuf.buf == NULL) | |
676 | { | |
566dda07 DSH |
677 | len = SSL3_RT_MAX_PLAIN_LENGTH |
678 | + SSL3_RT_MAX_ENCRYPTED_OVERHEAD | |
a4d64c7f | 679 | + SSL3_RT_HEADER_LENGTH + align; |
58964a49 | 680 | if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) |
566dda07 DSH |
681 | { |
682 | s->s3->init_extra = 1; | |
683 | len += SSL3_RT_MAX_EXTRA; | |
684 | } | |
685 | #ifndef OPENSSL_NO_COMP | |
686 | if (!(s->options & SSL_OP_NO_COMPRESSION)) | |
687 | len += SSL3_RT_MAX_COMPRESSED_OVERHEAD; | |
688 | #endif | |
8671b898 | 689 | if ((p=freelist_extract(s->ctx, 1, len)) == NULL) |
d02b48c6 | 690 | goto err; |
82b0bf0b BM |
691 | s->s3->rbuf.buf = p; |
692 | s->s3->rbuf.len = len; | |
d02b48c6 RE |
693 | } |
694 | ||
8671b898 BL |
695 | s->packet= &(s->s3->rbuf.buf[0]); |
696 | return 1; | |
697 | ||
698 | err: | |
474b3b1c | 699 | SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER,ERR_R_MALLOC_FAILURE); |
8671b898 BL |
700 | return 0; |
701 | } | |
702 | ||
703 | int ssl3_setup_write_buffer(SSL *s) | |
704 | { | |
705 | unsigned char *p; | |
706 | size_t len,align=0; | |
707 | ||
708 | #if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0 | |
709 | align = (-SSL3_RT_HEADER_LENGTH)&(SSL3_ALIGN_PAYLOAD-1); | |
710 | #endif | |
711 | ||
d02b48c6 RE |
712 | if (s->s3->wbuf.buf == NULL) |
713 | { | |
566dda07 DSH |
714 | len = s->max_send_fragment |
715 | + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD | |
a4d64c7f | 716 | + SSL3_RT_HEADER_LENGTH + align; |
566dda07 DSH |
717 | #ifndef OPENSSL_NO_COMP |
718 | if (!(s->options & SSL_OP_NO_COMPRESSION)) | |
719 | len += SSL3_RT_MAX_COMPRESSED_OVERHEAD; | |
720 | #endif | |
721 | if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) | |
a4d64c7f | 722 | len += SSL3_RT_HEADER_LENGTH + align |
566dda07 | 723 | + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD; |
8671b898 BL |
724 | |
725 | if ((p=freelist_extract(s->ctx, 0, len)) == NULL) | |
d02b48c6 | 726 | goto err; |
82b0bf0b BM |
727 | s->s3->wbuf.buf = p; |
728 | s->s3->wbuf.len = len; | |
d02b48c6 | 729 | } |
8671b898 BL |
730 | |
731 | return 1; | |
732 | ||
d02b48c6 | 733 | err: |
474b3b1c | 734 | SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER,ERR_R_MALLOC_FAILURE); |
8671b898 BL |
735 | return 0; |
736 | } | |
737 | ||
738 | ||
739 | int ssl3_setup_buffers(SSL *s) | |
740 | { | |
741 | if (!ssl3_setup_read_buffer(s)) | |
742 | return 0; | |
743 | if (!ssl3_setup_write_buffer(s)) | |
744 | return 0; | |
745 | return 1; | |
746 | } | |
747 | ||
748 | int ssl3_release_write_buffer(SSL *s) | |
749 | { | |
750 | if (s->s3->wbuf.buf != NULL) | |
751 | { | |
752 | freelist_insert(s->ctx, 0, s->s3->wbuf.len, s->s3->wbuf.buf); | |
753 | s->s3->wbuf.buf = NULL; | |
754 | } | |
755 | return 1; | |
d02b48c6 | 756 | } |
8671b898 BL |
757 | |
758 | int ssl3_release_read_buffer(SSL *s) | |
759 | { | |
760 | if (s->s3->rbuf.buf != NULL) | |
761 | { | |
762 | freelist_insert(s->ctx, 1, s->s3->rbuf.len, s->s3->rbuf.buf); | |
763 | s->s3->rbuf.buf = NULL; | |
764 | } | |
765 | return 1; | |
766 | } | |
767 |