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Diffstat (limited to 'src/lib/libssl/s3_both.c')
-rw-r--r--src/lib/libssl/s3_both.c469
1 files changed, 469 insertions, 0 deletions
diff --git a/src/lib/libssl/s3_both.c b/src/lib/libssl/s3_both.c
new file mode 100644
index 0000000000..6de62e1591
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+++ b/src/lib/libssl/s3_both.c
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1/* ssl/s3_both.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include "buffer.h"
61#include "rand.h"
62#include "objects.h"
63#include "evp.h"
64#include "x509.h"
65#include "ssl_locl.h"
66
67#define BREAK break
68
69/* SSL3err(SSL_F_SSL3_GET_FINISHED,SSL_R_EXCESSIVE_MESSAGE_SIZE);
70 */
71
72int ssl3_send_finished(s,a,b,sender,slen)
73SSL *s;
74int a;
75int b;
76unsigned char *sender;
77int slen;
78 {
79 unsigned char *p,*d;
80 int i;
81 unsigned long l;
82
83 if (s->state == a)
84 {
85 d=(unsigned char *)s->init_buf->data;
86 p= &(d[4]);
87
88 i=s->method->ssl3_enc->final_finish_mac(s,
89 &(s->s3->finish_dgst1),
90 &(s->s3->finish_dgst2),
91 sender,slen,p);
92 p+=i;
93 l=i;
94
95 *(d++)=SSL3_MT_FINISHED;
96 l2n3(l,d);
97 s->init_num=(int)l+4;
98 s->init_off=0;
99
100 s->state=b;
101 }
102
103 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
104 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
105 }
106
107int ssl3_get_finished(s,a,b)
108SSL *s;
109int a;
110int b;
111 {
112 int al,i,ok;
113 long n;
114 unsigned char *p;
115
116 /* the mac has already been generated when we received the
117 * change cipher spec message and is in s->s3->tmp.in_dgst[12]
118 */
119
120 n=ssl3_get_message(s,
121 a,
122 b,
123 SSL3_MT_FINISHED,
124 64, /* should actually be 36+4 :-) */
125 &ok);
126
127 if (!ok) return((int)n);
128
129 /* If this occurs if we has missed a message */
130 if (!s->s3->change_cipher_spec)
131 {
132 al=SSL_AD_UNEXPECTED_MESSAGE;
133 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
134 goto f_err;
135 }
136 s->s3->change_cipher_spec=0;
137
138 p=(unsigned char *)s->init_buf->data;
139
140 i=s->method->ssl3_enc->finish_mac_length;
141
142 if (i != n)
143 {
144 al=SSL_AD_DECODE_ERROR;
145 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
146 goto f_err;
147 }
148
149 if (memcmp( p, (char *)&(s->s3->tmp.finish_md[0]),i) != 0)
150 {
151 al=SSL_AD_DECRYPT_ERROR;
152 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
153 goto f_err;
154 }
155
156 return(1);
157f_err:
158 ssl3_send_alert(s,SSL3_AL_FATAL,al);
159 return(0);
160 }
161
162/* for these 2 messages, we need to
163 * ssl->enc_read_ctx re-init
164 * ssl->s3->read_sequence zero
165 * ssl->s3->read_mac_secret re-init
166 * ssl->session->read_sym_enc assign
167 * ssl->session->read_compression assign
168 * ssl->session->read_hash assign
169 */
170int ssl3_send_change_cipher_spec(s,a,b)
171SSL *s;
172int a,b;
173 {
174 unsigned char *p;
175
176 if (s->state == a)
177 {
178 p=(unsigned char *)s->init_buf->data;
179 *p=SSL3_MT_CCS;
180 s->init_num=1;
181 s->init_off=0;
182
183 s->state=b;
184 }
185
186 /* SSL3_ST_CW_CHANGE_B */
187 return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
188 }
189
190unsigned long ssl3_output_cert_chain(s,x)
191SSL *s;
192X509 *x;
193 {
194 unsigned char *p;
195 int n,i;
196 unsigned long l=7;
197 BUF_MEM *buf;
198 X509_STORE_CTX xs_ctx;
199 X509_OBJECT obj;
200
201 /* TLSv1 sends a chain with nothing in it, instead of an alert */
202 buf=s->init_buf;
203 if (!BUF_MEM_grow(buf,(int)(10)))
204 {
205 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
206 return(0);
207 }
208 if (x != NULL)
209 {
210 X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL);
211
212 for (;;)
213 {
214 n=i2d_X509(x,NULL);
215 if (!BUF_MEM_grow(buf,(int)(n+l+3)))
216 {
217 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
218 return(0);
219 }
220 p=(unsigned char *)&(buf->data[l]);
221 l2n3(n,p);
222 i2d_X509(x,&p);
223 l+=n+3;
224 if (X509_NAME_cmp(X509_get_subject_name(x),
225 X509_get_issuer_name(x)) == 0) break;
226
227 i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
228 X509_get_issuer_name(x),&obj);
229 if (i <= 0) break;
230 x=obj.data.x509;
231 /* Count is one too high since the X509_STORE_get uped the
232 * ref count */
233 X509_free(x);
234 }
235
236 X509_STORE_CTX_cleanup(&xs_ctx);
237 }
238
239 l-=7;
240 p=(unsigned char *)&(buf->data[4]);
241 l2n3(l,p);
242 l+=3;
243 p=(unsigned char *)&(buf->data[0]);
244 *(p++)=SSL3_MT_CERTIFICATE;
245 l2n3(l,p);
246 l+=4;
247 return(l);
248 }
249
250long ssl3_get_message(s,st1,stn,mt,max,ok)
251SSL *s;
252int st1,stn,mt;
253long max;
254int *ok;
255 {
256 unsigned char *p;
257 unsigned long l;
258 long n;
259 int i,al;
260
261 if (s->s3->tmp.reuse_message)
262 {
263 s->s3->tmp.reuse_message=0;
264 if ((mt >= 0) && (s->s3->tmp.message_type != mt))
265 {
266 al=SSL_AD_UNEXPECTED_MESSAGE;
267 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
268 goto f_err;
269 }
270 *ok=1;
271 return((int)s->s3->tmp.message_size);
272 }
273
274 p=(unsigned char *)s->init_buf->data;
275
276 if (s->state == st1)
277 {
278 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
279 (char *)&(p[s->init_num]),
280 4-s->init_num);
281 if (i < (4-s->init_num))
282 {
283 *ok=0;
284 return(ssl3_part_read(s,i));
285 }
286
287 if ((mt >= 0) && (*p != mt))
288 {
289 al=SSL_AD_UNEXPECTED_MESSAGE;
290 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
291 goto f_err;
292 }
293 s->s3->tmp.message_type= *(p++);
294
295 n2l3(p,l);
296 if (l > (unsigned long)max)
297 {
298 al=SSL_AD_ILLEGAL_PARAMETER;
299 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
300 goto f_err;
301 }
302 if (l && !BUF_MEM_grow(s->init_buf,(int)l))
303 {
304 SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
305 goto err;
306 }
307 s->s3->tmp.message_size=l;
308 s->state=stn;
309
310 s->init_num=0;
311 }
312
313 /* next state (stn) */
314 p=(unsigned char *)s->init_buf->data;
315 n=s->s3->tmp.message_size;
316 if (n > 0)
317 {
318 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
319 (char *)&(p[s->init_num]),(int)n);
320 if (i != (int)n)
321 {
322 *ok=0;
323 return(ssl3_part_read(s,i));
324 }
325 }
326 *ok=1;
327 return(n);
328f_err:
329 ssl3_send_alert(s,SSL3_AL_FATAL,al);
330err:
331 *ok=0;
332 return(-1);
333 }
334
335int ssl_cert_type(x,pkey)
336X509 *x;
337EVP_PKEY *pkey;
338 {
339 EVP_PKEY *pk;
340 int ret= -1,i,j;
341
342 if (pkey == NULL)
343 pk=X509_get_pubkey(x);
344 else
345 pk=pkey;
346 if (pk == NULL) goto err;
347
348 i=pk->type;
349 if (i == EVP_PKEY_RSA)
350 {
351 ret=SSL_PKEY_RSA_ENC;
352 if (x != NULL)
353 {
354 j=X509_get_ext_count(x);
355 /* check to see if this is a signing only certificate */
356 /* EAY EAY EAY EAY */
357 }
358 }
359 else if (i == EVP_PKEY_DSA)
360 {
361 ret=SSL_PKEY_DSA_SIGN;
362 }
363 else if (i == EVP_PKEY_DH)
364 {
365 /* if we just have a key, we needs to be guess */
366
367 if (x == NULL)
368 ret=SSL_PKEY_DH_DSA;
369 else
370 {
371 j=X509_get_signature_type(x);
372 if (j == EVP_PKEY_RSA)
373 ret=SSL_PKEY_DH_RSA;
374 else if (j== EVP_PKEY_DSA)
375 ret=SSL_PKEY_DH_DSA;
376 else ret= -1;
377 }
378 }
379 else
380 ret= -1;
381
382err:
383 return(ret);
384 }
385
386int ssl_verify_alarm_type(type)
387long type;
388 {
389 int al;
390
391 switch(type)
392 {
393 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
394 case X509_V_ERR_UNABLE_TO_GET_CRL:
395 al=SSL_AD_UNKNOWN_CA;
396 break;
397 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
398 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
399 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
400 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
401 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
402 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
403 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
404 case X509_V_ERR_CERT_NOT_YET_VALID:
405 case X509_V_ERR_CRL_NOT_YET_VALID:
406 al=SSL_AD_BAD_CERTIFICATE;
407 break;
408 case X509_V_ERR_CERT_SIGNATURE_FAILURE:
409 case X509_V_ERR_CRL_SIGNATURE_FAILURE:
410 al=SSL_AD_DECRYPT_ERROR;
411 break;
412 case X509_V_ERR_CERT_HAS_EXPIRED:
413 case X509_V_ERR_CRL_HAS_EXPIRED:
414 al=SSL_AD_CERTIFICATE_EXPIRED;
415 break;
416 case X509_V_ERR_CERT_REVOKED:
417 al=SSL_AD_CERTIFICATE_REVOKED;
418 break;
419 case X509_V_ERR_OUT_OF_MEM:
420 al=SSL_AD_INTERNAL_ERROR;
421 break;
422 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
423 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
424 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
425 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
426 case X509_V_ERR_CERT_CHAIN_TOO_LONG:
427 al=SSL_AD_UNKNOWN_CA;
428 break;
429 case X509_V_ERR_APPLICATION_VERIFICATION:
430 al=SSL_AD_HANDSHAKE_FAILURE;
431 break;
432 default:
433 al=SSL_AD_CERTIFICATE_UNKNOWN;
434 break;
435 }
436 return(al);
437 }
438
439int ssl3_setup_buffers(s)
440SSL *s;
441 {
442 unsigned char *p;
443 unsigned int extra;
444
445 if (s->s3->rbuf.buf == NULL)
446 {
447 if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
448 extra=SSL3_RT_MAX_EXTRA;
449 else
450 extra=0;
451 if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE+extra))
452 == NULL)
453 goto err;
454 s->s3->rbuf.buf=p;
455 }
456
457 if (s->s3->wbuf.buf == NULL)
458 {
459 if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE))
460 == NULL)
461 goto err;
462 s->s3->wbuf.buf=p;
463 }
464 s->packet= &(s->s3->rbuf.buf[0]);
465 return(1);
466err:
467 SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
468 return(0);
469 }
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