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Diffstat (limited to 'src/lib/libssl/bio_ssl.c')
-rw-r--r--src/lib/libssl/bio_ssl.c586
1 files changed, 0 insertions, 586 deletions
diff --git a/src/lib/libssl/bio_ssl.c b/src/lib/libssl/bio_ssl.c
deleted file mode 100644
index d85555a7e6..0000000000
--- a/src/lib/libssl/bio_ssl.c
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1/* ssl/bio_ssl.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 <stdlib.h>
61#include <string.h>
62#include <errno.h>
63#include <openssl/crypto.h>
64#include <openssl/bio.h>
65#include <openssl/err.h>
66#include <openssl/ssl.h>
67
68static int ssl_write(BIO *h, const char *buf, int num);
69static int ssl_read(BIO *h, char *buf, int size);
70static int ssl_puts(BIO *h, const char *str);
71static long ssl_ctrl(BIO *h, int cmd, long arg1, void *arg2);
72static int ssl_new(BIO *h);
73static int ssl_free(BIO *data);
74static long ssl_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
75typedef struct bio_ssl_st
76 {
77 SSL *ssl; /* The ssl handle :-) */
78 /* re-negotiate every time the total number of bytes is this size */
79 int num_renegotiates;
80 unsigned long renegotiate_count;
81 unsigned long byte_count;
82 unsigned long renegotiate_timeout;
83 unsigned long last_time;
84 } BIO_SSL;
85
86static BIO_METHOD methods_sslp=
87 {
88 BIO_TYPE_SSL,"ssl",
89 ssl_write,
90 ssl_read,
91 ssl_puts,
92 NULL, /* ssl_gets, */
93 ssl_ctrl,
94 ssl_new,
95 ssl_free,
96 ssl_callback_ctrl,
97 };
98
99BIO_METHOD *BIO_f_ssl(void)
100 {
101 return(&methods_sslp);
102 }
103
104static int ssl_new(BIO *bi)
105 {
106 BIO_SSL *bs;
107
108 bs=(BIO_SSL *)OPENSSL_malloc(sizeof(BIO_SSL));
109 if (bs == NULL)
110 {
111 BIOerr(BIO_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
112 return(0);
113 }
114 memset(bs,0,sizeof(BIO_SSL));
115 bi->init=0;
116 bi->ptr=(char *)bs;
117 bi->flags=0;
118 return(1);
119 }
120
121static int ssl_free(BIO *a)
122 {
123 BIO_SSL *bs;
124
125 if (a == NULL) return(0);
126 bs=(BIO_SSL *)a->ptr;
127 if (bs->ssl != NULL) SSL_shutdown(bs->ssl);
128 if (a->shutdown)
129 {
130 if (a->init && (bs->ssl != NULL))
131 SSL_free(bs->ssl);
132 a->init=0;
133 a->flags=0;
134 }
135 if (a->ptr != NULL)
136 OPENSSL_free(a->ptr);
137 return(1);
138 }
139
140static int ssl_read(BIO *b, char *out, int outl)
141 {
142 int ret=1;
143 BIO_SSL *sb;
144 SSL *ssl;
145 int retry_reason=0;
146 int r=0;
147
148 if (out == NULL) return(0);
149 sb=(BIO_SSL *)b->ptr;
150 ssl=sb->ssl;
151
152 BIO_clear_retry_flags(b);
153
154#if 0
155 if (!SSL_is_init_finished(ssl))
156 {
157/* ret=SSL_do_handshake(ssl); */
158 if (ret > 0)
159 {
160
161 outflags=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY);
162 ret= -1;
163 goto end;
164 }
165 }
166#endif
167/* if (ret > 0) */
168 ret=SSL_read(ssl,out,outl);
169
170 switch (SSL_get_error(ssl,ret))
171 {
172 case SSL_ERROR_NONE:
173 if (ret <= 0) break;
174 if (sb->renegotiate_count > 0)
175 {
176 sb->byte_count+=ret;
177 if (sb->byte_count > sb->renegotiate_count)
178 {
179 sb->byte_count=0;
180 sb->num_renegotiates++;
181 SSL_renegotiate(ssl);
182 r=1;
183 }
184 }
185 if ((sb->renegotiate_timeout > 0) && (!r))
186 {
187 unsigned long tm;
188
189 tm=(unsigned long)time(NULL);
190 if (tm > sb->last_time+sb->renegotiate_timeout)
191 {
192 sb->last_time=tm;
193 sb->num_renegotiates++;
194 SSL_renegotiate(ssl);
195 }
196 }
197
198 break;
199 case SSL_ERROR_WANT_READ:
200 BIO_set_retry_read(b);
201 break;
202 case SSL_ERROR_WANT_WRITE:
203 BIO_set_retry_write(b);
204 break;
205 case SSL_ERROR_WANT_X509_LOOKUP:
206 BIO_set_retry_special(b);
207 retry_reason=BIO_RR_SSL_X509_LOOKUP;
208 break;
209 case SSL_ERROR_WANT_CONNECT:
210 BIO_set_retry_special(b);
211 retry_reason=BIO_RR_CONNECT;
212 break;
213 case SSL_ERROR_SYSCALL:
214 case SSL_ERROR_SSL:
215 case SSL_ERROR_ZERO_RETURN:
216 default:
217 break;
218 }
219
220 b->retry_reason=retry_reason;
221 return(ret);
222 }
223
224static int ssl_write(BIO *b, const char *out, int outl)
225 {
226 int ret,r=0;
227 int retry_reason=0;
228 SSL *ssl;
229 BIO_SSL *bs;
230
231 if (out == NULL) return(0);
232 bs=(BIO_SSL *)b->ptr;
233 ssl=bs->ssl;
234
235 BIO_clear_retry_flags(b);
236
237/* ret=SSL_do_handshake(ssl);
238 if (ret > 0) */
239 ret=SSL_write(ssl,out,outl);
240
241 switch (SSL_get_error(ssl,ret))
242 {
243 case SSL_ERROR_NONE:
244 if (ret <= 0) break;
245 if (bs->renegotiate_count > 0)
246 {
247 bs->byte_count+=ret;
248 if (bs->byte_count > bs->renegotiate_count)
249 {
250 bs->byte_count=0;
251 bs->num_renegotiates++;
252 SSL_renegotiate(ssl);
253 r=1;
254 }
255 }
256 if ((bs->renegotiate_timeout > 0) && (!r))
257 {
258 unsigned long tm;
259
260 tm=(unsigned long)time(NULL);
261 if (tm > bs->last_time+bs->renegotiate_timeout)
262 {
263 bs->last_time=tm;
264 bs->num_renegotiates++;
265 SSL_renegotiate(ssl);
266 }
267 }
268 break;
269 case SSL_ERROR_WANT_WRITE:
270 BIO_set_retry_write(b);
271 break;
272 case SSL_ERROR_WANT_READ:
273 BIO_set_retry_read(b);
274 break;
275 case SSL_ERROR_WANT_X509_LOOKUP:
276 BIO_set_retry_special(b);
277 retry_reason=BIO_RR_SSL_X509_LOOKUP;
278 break;
279 case SSL_ERROR_WANT_CONNECT:
280 BIO_set_retry_special(b);
281 retry_reason=BIO_RR_CONNECT;
282 case SSL_ERROR_SYSCALL:
283 case SSL_ERROR_SSL:
284 default:
285 break;
286 }
287
288 b->retry_reason=retry_reason;
289 return(ret);
290 }
291
292static long ssl_ctrl(BIO *b, int cmd, long num, void *ptr)
293 {
294 SSL **sslp,*ssl;
295 BIO_SSL *bs;
296 BIO *dbio,*bio;
297 long ret=1;
298
299 bs=(BIO_SSL *)b->ptr;
300 ssl=bs->ssl;
301 if ((ssl == NULL) && (cmd != BIO_C_SET_SSL))
302 return(0);
303 switch (cmd)
304 {
305 case BIO_CTRL_RESET:
306 SSL_shutdown(ssl);
307
308 if (ssl->handshake_func == ssl->method->ssl_connect)
309 SSL_set_connect_state(ssl);
310 else if (ssl->handshake_func == ssl->method->ssl_accept)
311 SSL_set_accept_state(ssl);
312
313 SSL_clear(ssl);
314
315 if (b->next_bio != NULL)
316 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
317 else if (ssl->rbio != NULL)
318 ret=BIO_ctrl(ssl->rbio,cmd,num,ptr);
319 else
320 ret=1;
321 break;
322 case BIO_CTRL_INFO:
323 ret=0;
324 break;
325 case BIO_C_SSL_MODE:
326 if (num) /* client mode */
327 SSL_set_connect_state(ssl);
328 else
329 SSL_set_accept_state(ssl);
330 break;
331 case BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT:
332 ret=bs->renegotiate_timeout;
333 if (num < 60) num=5;
334 bs->renegotiate_timeout=(unsigned long)num;
335 bs->last_time=(unsigned long)time(NULL);
336 break;
337 case BIO_C_SET_SSL_RENEGOTIATE_BYTES:
338 ret=bs->renegotiate_count;
339 if ((long)num >=512)
340 bs->renegotiate_count=(unsigned long)num;
341 break;
342 case BIO_C_GET_SSL_NUM_RENEGOTIATES:
343 ret=bs->num_renegotiates;
344 break;
345 case BIO_C_SET_SSL:
346 if (ssl != NULL)
347 ssl_free(b);
348 b->shutdown=(int)num;
349 ssl=(SSL *)ptr;
350 ((BIO_SSL *)b->ptr)->ssl=ssl;
351 bio=SSL_get_rbio(ssl);
352 if (bio != NULL)
353 {
354 if (b->next_bio != NULL)
355 BIO_push(bio,b->next_bio);
356 b->next_bio=bio;
357 CRYPTO_add(&bio->references,1,CRYPTO_LOCK_BIO);
358 }
359 b->init=1;
360 break;
361 case BIO_C_GET_SSL:
362 if (ptr != NULL)
363 {
364 sslp=(SSL **)ptr;
365 *sslp=ssl;
366 }
367 else
368 ret=0;
369 break;
370 case BIO_CTRL_GET_CLOSE:
371 ret=b->shutdown;
372 break;
373 case BIO_CTRL_SET_CLOSE:
374 b->shutdown=(int)num;
375 break;
376 case BIO_CTRL_WPENDING:
377 ret=BIO_ctrl(ssl->wbio,cmd,num,ptr);
378 break;
379 case BIO_CTRL_PENDING:
380 ret=SSL_pending(ssl);
381 if (ret == 0)
382 ret=BIO_pending(ssl->rbio);
383 break;
384 case BIO_CTRL_FLUSH:
385 BIO_clear_retry_flags(b);
386 ret=BIO_ctrl(ssl->wbio,cmd,num,ptr);
387 BIO_copy_next_retry(b);
388 break;
389 case BIO_CTRL_PUSH:
390 if ((b->next_bio != NULL) && (b->next_bio != ssl->rbio))
391 {
392 SSL_set_bio(ssl,b->next_bio,b->next_bio);
393 CRYPTO_add(&b->next_bio->references,1,CRYPTO_LOCK_BIO);
394 }
395 break;
396 case BIO_CTRL_POP:
397 /* ugly bit of a hack */
398 if (ssl->rbio != ssl->wbio) /* we are in trouble :-( */
399 {
400 BIO_free_all(ssl->wbio);
401 }
402 ssl->wbio=NULL;
403 ssl->rbio=NULL;
404 break;
405 case BIO_C_DO_STATE_MACHINE:
406 BIO_clear_retry_flags(b);
407
408 b->retry_reason=0;
409 ret=(int)SSL_do_handshake(ssl);
410
411 switch (SSL_get_error(ssl,(int)ret))
412 {
413 case SSL_ERROR_WANT_READ:
414 BIO_set_flags(b,
415 BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY);
416 break;
417 case SSL_ERROR_WANT_WRITE:
418 BIO_set_flags(b,
419 BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY);
420 break;
421 case SSL_ERROR_WANT_CONNECT:
422 BIO_set_flags(b,
423 BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY);
424 b->retry_reason=b->next_bio->retry_reason;
425 break;
426 default:
427 break;
428 }
429 break;
430 case BIO_CTRL_DUP:
431 dbio=(BIO *)ptr;
432 if (((BIO_SSL *)dbio->ptr)->ssl != NULL)
433 SSL_free(((BIO_SSL *)dbio->ptr)->ssl);
434 ((BIO_SSL *)dbio->ptr)->ssl=SSL_dup(ssl);
435 ((BIO_SSL *)dbio->ptr)->renegotiate_count=
436 ((BIO_SSL *)b->ptr)->renegotiate_count;
437 ((BIO_SSL *)dbio->ptr)->byte_count=
438 ((BIO_SSL *)b->ptr)->byte_count;
439 ((BIO_SSL *)dbio->ptr)->renegotiate_timeout=
440 ((BIO_SSL *)b->ptr)->renegotiate_timeout;
441 ((BIO_SSL *)dbio->ptr)->last_time=
442 ((BIO_SSL *)b->ptr)->last_time;
443 ret=(((BIO_SSL *)dbio->ptr)->ssl != NULL);
444 break;
445 case BIO_C_GET_FD:
446 ret=BIO_ctrl(ssl->rbio,cmd,num,ptr);
447 break;
448 case BIO_CTRL_SET_CALLBACK:
449 {
450#if 0 /* FIXME: Should this be used? -- Richard Levitte */
451 BIOerr(SSL_F_SSL_CTRL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
452 ret = -1;
453#else
454 ret=0;
455#endif
456 }
457 break;
458 case BIO_CTRL_GET_CALLBACK:
459 {
460 void (**fptr)();
461
462 fptr=(void (**)())ptr;
463 *fptr=SSL_get_info_callback(ssl);
464 }
465 break;
466 default:
467 ret=BIO_ctrl(ssl->rbio,cmd,num,ptr);
468 break;
469 }
470 return(ret);
471 }
472
473static long ssl_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
474 {
475 SSL *ssl;
476 BIO_SSL *bs;
477 long ret=1;
478
479 bs=(BIO_SSL *)b->ptr;
480 ssl=bs->ssl;
481 switch (cmd)
482 {
483 case BIO_CTRL_SET_CALLBACK:
484 {
485 SSL_set_info_callback(ssl,fp);
486 }
487 break;
488 default:
489 ret=BIO_callback_ctrl(ssl->rbio,cmd,fp);
490 break;
491 }
492 return(ret);
493 }
494
495static int ssl_puts(BIO *bp, const char *str)
496 {
497 int n,ret;
498
499 n=strlen(str);
500 ret=BIO_write(bp,str,n);
501 return(ret);
502 }
503
504BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx)
505 {
506 BIO *ret=NULL,*buf=NULL,*ssl=NULL;
507
508 if ((buf=BIO_new(BIO_f_buffer())) == NULL)
509 return(NULL);
510 if ((ssl=BIO_new_ssl_connect(ctx)) == NULL)
511 goto err;
512 if ((ret=BIO_push(buf,ssl)) == NULL)
513 goto err;
514 return(ret);
515err:
516 if (buf != NULL) BIO_free(buf);
517 if (ssl != NULL) BIO_free(ssl);
518 return(NULL);
519 }
520
521BIO *BIO_new_ssl_connect(SSL_CTX *ctx)
522 {
523 BIO *ret=NULL,*con=NULL,*ssl=NULL;
524
525 if ((con=BIO_new(BIO_s_connect())) == NULL)
526 return(NULL);
527 if ((ssl=BIO_new_ssl(ctx,1)) == NULL)
528 goto err;
529 if ((ret=BIO_push(ssl,con)) == NULL)
530 goto err;
531 return(ret);
532err:
533 if (con != NULL) BIO_free(con);
534 if (ret != NULL) BIO_free(ret);
535 return(NULL);
536 }
537
538BIO *BIO_new_ssl(SSL_CTX *ctx, int client)
539 {
540 BIO *ret;
541 SSL *ssl;
542
543 if ((ret=BIO_new(BIO_f_ssl())) == NULL)
544 return(NULL);
545 if ((ssl=SSL_new(ctx)) == NULL)
546 {
547 BIO_free(ret);
548 return(NULL);
549 }
550 if (client)
551 SSL_set_connect_state(ssl);
552 else
553 SSL_set_accept_state(ssl);
554
555 BIO_set_ssl(ret,ssl,BIO_CLOSE);
556 return(ret);
557 }
558
559int BIO_ssl_copy_session_id(BIO *t, BIO *f)
560 {
561 t=BIO_find_type(t,BIO_TYPE_SSL);
562 f=BIO_find_type(f,BIO_TYPE_SSL);
563 if ((t == NULL) || (f == NULL))
564 return(0);
565 if ( (((BIO_SSL *)t->ptr)->ssl == NULL) ||
566 (((BIO_SSL *)f->ptr)->ssl == NULL))
567 return(0);
568 SSL_copy_session_id(((BIO_SSL *)t->ptr)->ssl,((BIO_SSL *)f->ptr)->ssl);
569 return(1);
570 }
571
572void BIO_ssl_shutdown(BIO *b)
573 {
574 SSL *s;
575
576 while (b != NULL)
577 {
578 if (b->method->type == BIO_TYPE_SSL)
579 {
580 s=((BIO_SSL *)b->ptr)->ssl;
581 SSL_shutdown(s);
582 break;
583 }
584 b=b->next_bio;
585 }
586 }
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