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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 | */ | |
d02b48c6 | 111 | |
48948d53 | 112 | #include <limits.h> |
f2d9a32c | 113 | #include <string.h> |
d02b48c6 | 114 | #include <stdio.h> |
7b63c0fa | 115 | #include "ssl_locl.h" |
ec577822 BM |
116 | #include <openssl/buffer.h> |
117 | #include <openssl/rand.h> | |
118 | #include <openssl/objects.h> | |
119 | #include <openssl/evp.h> | |
120 | #include <openssl/x509.h> | |
d02b48c6 | 121 | |
a661b653 | 122 | /* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */ |
e7ecc7d4 BM |
123 | int ssl3_do_write(SSL *s, int type) |
124 | { | |
125 | int ret; | |
126 | ||
127 | ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off], | |
128 | s->init_num); | |
129 | if (ret < 0) return(-1); | |
130 | if (type == SSL3_RT_HANDSHAKE) | |
131 | /* should not be done for 'Hello Request's, but in that case | |
132 | * we'll ignore the result anyway */ | |
72b60351 | 133 | ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret); |
e7ecc7d4 BM |
134 | |
135 | if (ret == s->init_num) | |
a661b653 BM |
136 | { |
137 | if (s->msg_callback) | |
cf3a5ceb | 138 | 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 | 139 | return(1); |
a661b653 | 140 | } |
e7ecc7d4 BM |
141 | s->init_off+=ret; |
142 | s->init_num-=ret; | |
143 | return(0); | |
144 | } | |
145 | ||
c44f7540 | 146 | int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen) |
d02b48c6 RE |
147 | { |
148 | unsigned char *p,*d; | |
149 | int i; | |
150 | unsigned long l; | |
151 | ||
152 | if (s->state == a) | |
153 | { | |
154 | d=(unsigned char *)s->init_buf->data; | |
155 | p= &(d[4]); | |
156 | ||
58964a49 RE |
157 | i=s->method->ssl3_enc->final_finish_mac(s, |
158 | &(s->s3->finish_dgst1), | |
159 | &(s->s3->finish_dgst2), | |
9fb617e2 BM |
160 | sender,slen,s->s3->tmp.finish_md); |
161 | s->s3->tmp.finish_md_len = i; | |
162 | memcpy(p, s->s3->tmp.finish_md, i); | |
d02b48c6 RE |
163 | p+=i; |
164 | l=i; | |
d02b48c6 | 165 | |
bc36ee62 | 166 | #ifdef OPENSSL_SYS_WIN16 |
dfeab068 RE |
167 | /* MSVC 1.5 does not clear the top bytes of the word unless |
168 | * I do this. | |
169 | */ | |
170 | l&=0xffff; | |
171 | #endif | |
172 | ||
d02b48c6 RE |
173 | *(d++)=SSL3_MT_FINISHED; |
174 | l2n3(l,d); | |
175 | s->init_num=(int)l+4; | |
176 | s->init_off=0; | |
177 | ||
178 | s->state=b; | |
179 | } | |
180 | ||
181 | /* SSL3_ST_SEND_xxxxxx_HELLO_B */ | |
182 | return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); | |
183 | } | |
184 | ||
6b691a5c | 185 | int ssl3_get_finished(SSL *s, int a, int b) |
d02b48c6 | 186 | { |
58964a49 | 187 | int al,i,ok; |
d02b48c6 RE |
188 | long n; |
189 | unsigned char *p; | |
190 | ||
191 | /* the mac has already been generated when we received the | |
9fb617e2 | 192 | * change cipher spec message and is in s->s3->tmp.peer_finish_md |
d02b48c6 RE |
193 | */ |
194 | ||
195 | n=ssl3_get_message(s, | |
196 | a, | |
197 | b, | |
198 | SSL3_MT_FINISHED, | |
199 | 64, /* should actually be 36+4 :-) */ | |
200 | &ok); | |
201 | ||
202 | if (!ok) return((int)n); | |
203 | ||
b35e9050 | 204 | /* If this occurs, we have missed a message */ |
d02b48c6 RE |
205 | if (!s->s3->change_cipher_spec) |
206 | { | |
58964a49 | 207 | al=SSL_AD_UNEXPECTED_MESSAGE; |
d02b48c6 RE |
208 | SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS); |
209 | goto f_err; | |
210 | } | |
211 | s->s3->change_cipher_spec=0; | |
212 | ||
48948d53 | 213 | p = (unsigned char *)s->init_msg; |
9fb617e2 | 214 | i = s->s3->tmp.peer_finish_md_len; |
d02b48c6 | 215 | |
58964a49 | 216 | if (i != n) |
d02b48c6 | 217 | { |
58964a49 | 218 | al=SSL_AD_DECODE_ERROR; |
d02b48c6 RE |
219 | SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH); |
220 | goto f_err; | |
221 | } | |
222 | ||
9fb617e2 | 223 | if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0) |
d02b48c6 | 224 | { |
58964a49 | 225 | al=SSL_AD_DECRYPT_ERROR; |
d02b48c6 RE |
226 | SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED); |
227 | goto f_err; | |
228 | } | |
229 | ||
230 | return(1); | |
231 | f_err: | |
232 | ssl3_send_alert(s,SSL3_AL_FATAL,al); | |
233 | return(0); | |
234 | } | |
235 | ||
236 | /* for these 2 messages, we need to | |
237 | * ssl->enc_read_ctx re-init | |
238 | * ssl->s3->read_sequence zero | |
239 | * ssl->s3->read_mac_secret re-init | |
240 | * ssl->session->read_sym_enc assign | |
241 | * ssl->session->read_compression assign | |
242 | * ssl->session->read_hash assign | |
243 | */ | |
6b691a5c | 244 | int ssl3_send_change_cipher_spec(SSL *s, int a, int b) |
d02b48c6 RE |
245 | { |
246 | unsigned char *p; | |
247 | ||
248 | if (s->state == a) | |
249 | { | |
250 | p=(unsigned char *)s->init_buf->data; | |
251 | *p=SSL3_MT_CCS; | |
252 | s->init_num=1; | |
253 | s->init_off=0; | |
254 | ||
255 | s->state=b; | |
256 | } | |
257 | ||
258 | /* SSL3_ST_CW_CHANGE_B */ | |
259 | return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC)); | |
260 | } | |
261 | ||
6b691a5c | 262 | unsigned long ssl3_output_cert_chain(SSL *s, X509 *x) |
d02b48c6 RE |
263 | { |
264 | unsigned char *p; | |
265 | int n,i; | |
266 | unsigned long l=7; | |
267 | BUF_MEM *buf; | |
268 | X509_STORE_CTX xs_ctx; | |
269 | X509_OBJECT obj; | |
270 | ||
58964a49 | 271 | /* TLSv1 sends a chain with nothing in it, instead of an alert */ |
d02b48c6 | 272 | buf=s->init_buf; |
58964a49 | 273 | if (!BUF_MEM_grow(buf,(int)(10))) |
d02b48c6 | 274 | { |
58964a49 RE |
275 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); |
276 | return(0); | |
277 | } | |
278 | if (x != NULL) | |
279 | { | |
79aa04ef GT |
280 | if(!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL)) |
281 | { | |
282 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB); | |
283 | return(0); | |
284 | } | |
58964a49 RE |
285 | |
286 | for (;;) | |
d02b48c6 | 287 | { |
58964a49 RE |
288 | n=i2d_X509(x,NULL); |
289 | if (!BUF_MEM_grow(buf,(int)(n+l+3))) | |
290 | { | |
291 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); | |
292 | return(0); | |
293 | } | |
294 | p=(unsigned char *)&(buf->data[l]); | |
295 | l2n3(n,p); | |
296 | i2d_X509(x,&p); | |
297 | l+=n+3; | |
298 | if (X509_NAME_cmp(X509_get_subject_name(x), | |
299 | X509_get_issuer_name(x)) == 0) break; | |
300 | ||
301 | i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509, | |
302 | X509_get_issuer_name(x),&obj); | |
303 | if (i <= 0) break; | |
304 | x=obj.data.x509; | |
305 | /* Count is one too high since the X509_STORE_get uped the | |
306 | * ref count */ | |
307 | X509_free(x); | |
d02b48c6 | 308 | } |
d02b48c6 | 309 | |
58964a49 RE |
310 | X509_STORE_CTX_cleanup(&xs_ctx); |
311 | } | |
d02b48c6 | 312 | |
651d0aff | 313 | /* Thawte special :-) */ |
dfeab068 | 314 | if (s->ctx->extra_certs != NULL) |
f73e07cf | 315 | for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++) |
dfeab068 | 316 | { |
f73e07cf | 317 | x=sk_X509_value(s->ctx->extra_certs,i); |
dfeab068 RE |
318 | n=i2d_X509(x,NULL); |
319 | if (!BUF_MEM_grow(buf,(int)(n+l+3))) | |
320 | { | |
321 | SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); | |
322 | return(0); | |
323 | } | |
324 | p=(unsigned char *)&(buf->data[l]); | |
325 | l2n3(n,p); | |
326 | i2d_X509(x,&p); | |
327 | l+=n+3; | |
328 | } | |
329 | ||
d02b48c6 RE |
330 | l-=7; |
331 | p=(unsigned char *)&(buf->data[4]); | |
332 | l2n3(l,p); | |
333 | l+=3; | |
334 | p=(unsigned char *)&(buf->data[0]); | |
335 | *(p++)=SSL3_MT_CERTIFICATE; | |
336 | l2n3(l,p); | |
337 | l+=4; | |
338 | return(l); | |
339 | } | |
340 | ||
52732b38 BM |
341 | /* Obtain handshake message of message type 'mt' (any if mt == -1), |
342 | * maximum acceptable body length 'max'. | |
343 | * The first four bytes (msg_type and length) are read in state 'st1', | |
344 | * the body is read in state 'stn'. | |
345 | */ | |
6b691a5c | 346 | long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok) |
d02b48c6 RE |
347 | { |
348 | unsigned char *p; | |
349 | unsigned long l; | |
350 | long n; | |
351 | int i,al; | |
352 | ||
353 | if (s->s3->tmp.reuse_message) | |
354 | { | |
355 | s->s3->tmp.reuse_message=0; | |
356 | if ((mt >= 0) && (s->s3->tmp.message_type != mt)) | |
357 | { | |
58964a49 | 358 | al=SSL_AD_UNEXPECTED_MESSAGE; |
d02b48c6 RE |
359 | SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE); |
360 | goto f_err; | |
361 | } | |
362 | *ok=1; | |
48948d53 | 363 | s->init_msg = s->init_buf->data + 4; |
8f71fb8d BM |
364 | s->init_num = (int)s->s3->tmp.message_size; |
365 | return s->init_num; | |
d02b48c6 RE |
366 | } |
367 | ||
368 | p=(unsigned char *)s->init_buf->data; | |
369 | ||
b35e9050 | 370 | if (s->state == st1) /* s->init_num < 4 */ |
d02b48c6 | 371 | { |
45206340 BM |
372 | int skip_message; |
373 | ||
374 | do | |
d02b48c6 | 375 | { |
45206340 | 376 | while (s->init_num < 4) |
b35e9050 | 377 | { |
45206340 | 378 | i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num], |
5a4fbc69 | 379 | 4 - s->init_num, 0); |
45206340 BM |
380 | if (i <= 0) |
381 | { | |
382 | s->rwstate=SSL_READING; | |
383 | *ok = 0; | |
384 | return i; | |
385 | } | |
386 | s->init_num+=i; | |
b35e9050 | 387 | } |
45206340 BM |
388 | |
389 | skip_message = 0; | |
390 | if (!s->server) | |
391 | if (p[0] == SSL3_MT_HELLO_REQUEST) | |
392 | /* The server may always send 'Hello Request' messages -- | |
393 | * we are doing a handshake anyway now, so ignore them | |
745c70e5 BM |
394 | * if their format is correct. Does not count for |
395 | * 'Finished' MAC. */ | |
45206340 | 396 | if (p[1] == 0 && p[2] == 0 &&p[3] == 0) |
3b0b5aba BM |
397 | { |
398 | s->init_num = 0; | |
45206340 | 399 | skip_message = 1; |
a661b653 BM |
400 | |
401 | if (s->msg_callback) | |
402 | s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg); | |
3b0b5aba | 403 | } |
d02b48c6 | 404 | } |
45206340 | 405 | while (skip_message); |
d02b48c6 | 406 | |
745c70e5 BM |
407 | /* s->init_num == 4 */ |
408 | ||
d02b48c6 RE |
409 | if ((mt >= 0) && (*p != mt)) |
410 | { | |
58964a49 | 411 | al=SSL_AD_UNEXPECTED_MESSAGE; |
d02b48c6 RE |
412 | SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE); |
413 | goto f_err; | |
414 | } | |
a2a01589 | 415 | if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) && |
3d14b9d0 DSH |
416 | (st1 == SSL3_ST_SR_CERT_A) && |
417 | (stn == SSL3_ST_SR_CERT_B)) | |
418 | { | |
419 | /* At this point we have got an MS SGC second client | |
745c70e5 BM |
420 | * hello (maybe we should always allow the client to |
421 | * start a new handshake?). We need to restart the mac. | |
a2a01589 BM |
422 | * Don't increment {num,total}_renegotiations because |
423 | * we have not completed the handshake. */ | |
3d14b9d0 | 424 | ssl3_init_finished_mac(s); |
3d14b9d0 | 425 | } |
745c70e5 | 426 | |
d02b48c6 RE |
427 | s->s3->tmp.message_type= *(p++); |
428 | ||
429 | n2l3(p,l); | |
430 | if (l > (unsigned long)max) | |
431 | { | |
58964a49 | 432 | al=SSL_AD_ILLEGAL_PARAMETER; |
d02b48c6 RE |
433 | SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE); |
434 | goto f_err; | |
435 | } | |
48948d53 BM |
436 | if (l > (INT_MAX-4)) /* BUF_MEM_grow takes an 'int' parameter */ |
437 | { | |
438 | al=SSL_AD_ILLEGAL_PARAMETER; | |
439 | SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE); | |
440 | goto f_err; | |
441 | } | |
442 | if (l && !BUF_MEM_grow(s->init_buf,(int)l+4)) | |
d02b48c6 RE |
443 | { |
444 | SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB); | |
445 | goto err; | |
446 | } | |
447 | s->s3->tmp.message_size=l; | |
448 | s->state=stn; | |
449 | ||
48948d53 BM |
450 | s->init_msg = s->init_buf->data + 4; |
451 | s->init_num = 0; | |
d02b48c6 RE |
452 | } |
453 | ||
454 | /* next state (stn) */ | |
48948d53 BM |
455 | p = s->init_msg; |
456 | n = s->s3->tmp.message_size - s->init_num; | |
b35e9050 | 457 | while (n > 0) |
d02b48c6 | 458 | { |
5a4fbc69 | 459 | i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0); |
b35e9050 | 460 | if (i <= 0) |
d02b48c6 | 461 | { |
b35e9050 BM |
462 | s->rwstate=SSL_READING; |
463 | *ok = 0; | |
464 | return i; | |
d02b48c6 | 465 | } |
b35e9050 BM |
466 | s->init_num += i; |
467 | n -= i; | |
d02b48c6 | 468 | } |
48948d53 | 469 | ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4); |
a661b653 BM |
470 | if (s->msg_callback) |
471 | 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 | 472 | *ok=1; |
b35e9050 | 473 | return s->init_num; |
d02b48c6 RE |
474 | f_err: |
475 | ssl3_send_alert(s,SSL3_AL_FATAL,al); | |
476 | err: | |
477 | *ok=0; | |
478 | return(-1); | |
479 | } | |
480 | ||
6b691a5c | 481 | int ssl_cert_type(X509 *x, EVP_PKEY *pkey) |
d02b48c6 RE |
482 | { |
483 | EVP_PKEY *pk; | |
484 | int ret= -1,i,j; | |
485 | ||
486 | if (pkey == NULL) | |
487 | pk=X509_get_pubkey(x); | |
488 | else | |
489 | pk=pkey; | |
490 | if (pk == NULL) goto err; | |
491 | ||
492 | i=pk->type; | |
493 | if (i == EVP_PKEY_RSA) | |
494 | { | |
495 | ret=SSL_PKEY_RSA_ENC; | |
496 | if (x != NULL) | |
497 | { | |
498 | j=X509_get_ext_count(x); | |
499 | /* check to see if this is a signing only certificate */ | |
500 | /* EAY EAY EAY EAY */ | |
501 | } | |
502 | } | |
503 | else if (i == EVP_PKEY_DSA) | |
504 | { | |
505 | ret=SSL_PKEY_DSA_SIGN; | |
506 | } | |
507 | else if (i == EVP_PKEY_DH) | |
508 | { | |
509 | /* if we just have a key, we needs to be guess */ | |
510 | ||
511 | if (x == NULL) | |
512 | ret=SSL_PKEY_DH_DSA; | |
513 | else | |
514 | { | |
515 | j=X509_get_signature_type(x); | |
516 | if (j == EVP_PKEY_RSA) | |
517 | ret=SSL_PKEY_DH_RSA; | |
518 | else if (j== EVP_PKEY_DSA) | |
519 | ret=SSL_PKEY_DH_DSA; | |
520 | else ret= -1; | |
521 | } | |
522 | } | |
523 | else | |
524 | ret= -1; | |
525 | ||
526 | err: | |
a8236c8c | 527 | if(!pkey) EVP_PKEY_free(pk); |
d02b48c6 RE |
528 | return(ret); |
529 | } | |
530 | ||
6b691a5c | 531 | int ssl_verify_alarm_type(long type) |
d02b48c6 RE |
532 | { |
533 | int al; | |
534 | ||
535 | switch(type) | |
536 | { | |
537 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: | |
58964a49 | 538 | case X509_V_ERR_UNABLE_TO_GET_CRL: |
b545dc67 | 539 | case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: |
58964a49 RE |
540 | al=SSL_AD_UNKNOWN_CA; |
541 | break; | |
d02b48c6 | 542 | case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE: |
58964a49 | 543 | case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE: |
d02b48c6 | 544 | case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY: |
d02b48c6 RE |
545 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: |
546 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: | |
58964a49 RE |
547 | case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD: |
548 | case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD: | |
549 | case X509_V_ERR_CERT_NOT_YET_VALID: | |
550 | case X509_V_ERR_CRL_NOT_YET_VALID: | |
11c26ecf LJ |
551 | case X509_V_ERR_CERT_UNTRUSTED: |
552 | case X509_V_ERR_CERT_REJECTED: | |
58964a49 RE |
553 | al=SSL_AD_BAD_CERTIFICATE; |
554 | break; | |
555 | case X509_V_ERR_CERT_SIGNATURE_FAILURE: | |
556 | case X509_V_ERR_CRL_SIGNATURE_FAILURE: | |
557 | al=SSL_AD_DECRYPT_ERROR; | |
558 | break; | |
559 | case X509_V_ERR_CERT_HAS_EXPIRED: | |
560 | case X509_V_ERR_CRL_HAS_EXPIRED: | |
561 | al=SSL_AD_CERTIFICATE_EXPIRED; | |
562 | break; | |
563 | case X509_V_ERR_CERT_REVOKED: | |
564 | al=SSL_AD_CERTIFICATE_REVOKED; | |
565 | break; | |
566 | case X509_V_ERR_OUT_OF_MEM: | |
567 | al=SSL_AD_INTERNAL_ERROR; | |
568 | break; | |
d02b48c6 RE |
569 | case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: |
570 | case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: | |
571 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: | |
572 | case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE: | |
58964a49 | 573 | case X509_V_ERR_CERT_CHAIN_TOO_LONG: |
11c26ecf LJ |
574 | case X509_V_ERR_PATH_LENGTH_EXCEEDED: |
575 | case X509_V_ERR_INVALID_CA: | |
58964a49 | 576 | al=SSL_AD_UNKNOWN_CA; |
d02b48c6 | 577 | break; |
58964a49 RE |
578 | case X509_V_ERR_APPLICATION_VERIFICATION: |
579 | al=SSL_AD_HANDSHAKE_FAILURE; | |
d02b48c6 | 580 | break; |
11c26ecf LJ |
581 | case X509_V_ERR_INVALID_PURPOSE: |
582 | al=SSL_AD_UNSUPPORTED_CERTIFICATE; | |
583 | break; | |
d02b48c6 | 584 | default: |
58964a49 | 585 | al=SSL_AD_CERTIFICATE_UNKNOWN; |
d02b48c6 RE |
586 | break; |
587 | } | |
588 | return(al); | |
589 | } | |
590 | ||
6b691a5c | 591 | int ssl3_setup_buffers(SSL *s) |
d02b48c6 RE |
592 | { |
593 | unsigned char *p; | |
594 | unsigned int extra; | |
82b0bf0b | 595 | size_t len; |
d02b48c6 RE |
596 | |
597 | if (s->s3->rbuf.buf == NULL) | |
598 | { | |
58964a49 | 599 | if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) |
d02b48c6 RE |
600 | extra=SSL3_RT_MAX_EXTRA; |
601 | else | |
602 | extra=0; | |
82b0bf0b BM |
603 | len = SSL3_RT_MAX_PACKET_SIZE + extra; |
604 | if ((p=OPENSSL_malloc(len)) == NULL) | |
d02b48c6 | 605 | goto err; |
82b0bf0b BM |
606 | s->s3->rbuf.buf = p; |
607 | s->s3->rbuf.len = len; | |
d02b48c6 RE |
608 | } |
609 | ||
610 | if (s->s3->wbuf.buf == NULL) | |
611 | { | |
82b0bf0b BM |
612 | len = SSL3_RT_MAX_PACKET_SIZE; |
613 | len += SSL3_RT_HEADER_LENGTH + 256; /* extra space for empty fragment */ | |
614 | if ((p=OPENSSL_malloc(len)) == NULL) | |
d02b48c6 | 615 | goto err; |
82b0bf0b BM |
616 | s->s3->wbuf.buf = p; |
617 | s->s3->wbuf.len = len; | |
d02b48c6 RE |
618 | } |
619 | s->packet= &(s->s3->rbuf.buf[0]); | |
620 | return(1); | |
621 | err: | |
622 | SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE); | |
623 | return(0); | |
624 | } |