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-rw-r--r--src/lib/libssl/bio_ssl.c596
1 files changed, 0 insertions, 596 deletions
diff --git a/src/lib/libssl/bio_ssl.c b/src/lib/libssl/bio_ssl.c
deleted file mode 100644
index 6dd1699606..0000000000
--- a/src/lib/libssl/bio_ssl.c
+++ /dev/null
@@ -1,596 +0,0 @@
1/* $OpenBSD: bio_ssl.c,v 1.40 2023/07/19 13:34:33 tb Exp $ */
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 <errno.h>
60#include <stdio.h>
61#include <stdlib.h>
62#include <string.h>
63
64#include <openssl/bio.h>
65#include <openssl/crypto.h>
66#include <openssl/err.h>
67#include <openssl/ssl.h>
68
69#include "bio_local.h"
70#include "ssl_local.h"
71
72static int ssl_write(BIO *h, const char *buf, int num);
73static int ssl_read(BIO *h, char *buf, int size);
74static int ssl_puts(BIO *h, const char *str);
75static long ssl_ctrl(BIO *h, int cmd, long arg1, void *arg2);
76static int ssl_new(BIO *h);
77static int ssl_free(BIO *data);
78static long ssl_callback_ctrl(BIO *h, int cmd, BIO_info_cb *fp);
79typedef struct bio_ssl_st {
80 SSL *ssl; /* The ssl handle :-) */
81 /* re-negotiate every time the total number of bytes is this size */
82 int num_renegotiates;
83 unsigned long renegotiate_count;
84 unsigned long byte_count;
85 unsigned long renegotiate_timeout;
86 time_t last_time;
87} BIO_SSL;
88
89static const BIO_METHOD methods_sslp = {
90 .type = BIO_TYPE_SSL,
91 .name = "ssl",
92 .bwrite = ssl_write,
93 .bread = ssl_read,
94 .bputs = ssl_puts,
95 .ctrl = ssl_ctrl,
96 .create = ssl_new,
97 .destroy = ssl_free,
98 .callback_ctrl = ssl_callback_ctrl,
99};
100
101const BIO_METHOD *
102BIO_f_ssl(void)
103{
104 return (&methods_sslp);
105}
106LSSL_ALIAS(BIO_f_ssl);
107
108static int
109ssl_new(BIO *bi)
110{
111 BIO_SSL *bs;
112
113 bs = calloc(1, sizeof(BIO_SSL));
114 if (bs == NULL) {
115 SSLerrorx(ERR_R_MALLOC_FAILURE);
116 return (0);
117 }
118 bi->init = 0;
119 bi->ptr = (char *)bs;
120 bi->flags = 0;
121 return (1);
122}
123LSSL_ALIAS(BIO_f_ssl);
124
125static int
126ssl_free(BIO *a)
127{
128 BIO_SSL *bs;
129
130 if (a == NULL)
131 return (0);
132 bs = (BIO_SSL *)a->ptr;
133 if (bs->ssl != NULL)
134 SSL_shutdown(bs->ssl);
135 if (a->shutdown) {
136 if (a->init && (bs->ssl != NULL))
137 SSL_free(bs->ssl);
138 a->init = 0;
139 a->flags = 0;
140 }
141 free(a->ptr);
142 return (1);
143}
144
145static int
146ssl_read(BIO *b, char *out, int outl)
147{
148 int ret = 1;
149 BIO_SSL *sb;
150 SSL *ssl;
151 int retry_reason = 0;
152 int r = 0;
153
154 if (out == NULL)
155 return (0);
156 sb = (BIO_SSL *)b->ptr;
157 ssl = sb->ssl;
158
159 BIO_clear_retry_flags(b);
160
161 ret = SSL_read(ssl, out, outl);
162
163 switch (SSL_get_error(ssl, ret)) {
164 case SSL_ERROR_NONE:
165 if (ret <= 0)
166 break;
167 if (sb->renegotiate_count > 0) {
168 sb->byte_count += ret;
169 if (sb->byte_count > sb->renegotiate_count) {
170 sb->byte_count = 0;
171 sb->num_renegotiates++;
172 SSL_renegotiate(ssl);
173 r = 1;
174 }
175 }
176 if ((sb->renegotiate_timeout > 0) && (!r)) {
177 time_t tm;
178
179 tm = time(NULL);
180 if (tm > sb->last_time + sb->renegotiate_timeout) {
181 sb->last_time = tm;
182 sb->num_renegotiates++;
183 SSL_renegotiate(ssl);
184 }
185 }
186
187 break;
188 case SSL_ERROR_WANT_READ:
189 BIO_set_retry_read(b);
190 break;
191 case SSL_ERROR_WANT_WRITE:
192 BIO_set_retry_write(b);
193 break;
194 case SSL_ERROR_WANT_X509_LOOKUP:
195 BIO_set_retry_special(b);
196 retry_reason = BIO_RR_SSL_X509_LOOKUP;
197 break;
198 case SSL_ERROR_WANT_ACCEPT:
199 BIO_set_retry_special(b);
200 retry_reason = BIO_RR_ACCEPT;
201 break;
202 case SSL_ERROR_WANT_CONNECT:
203 BIO_set_retry_special(b);
204 retry_reason = BIO_RR_CONNECT;
205 break;
206 case SSL_ERROR_SYSCALL:
207 case SSL_ERROR_SSL:
208 case SSL_ERROR_ZERO_RETURN:
209 default:
210 break;
211 }
212
213 b->retry_reason = retry_reason;
214 return (ret);
215}
216
217static int
218ssl_write(BIO *b, const char *out, int outl)
219{
220 int ret, r = 0;
221 int retry_reason = 0;
222 SSL *ssl;
223 BIO_SSL *bs;
224
225 if (out == NULL)
226 return (0);
227 bs = (BIO_SSL *)b->ptr;
228 ssl = bs->ssl;
229
230 BIO_clear_retry_flags(b);
231
232/* ret=SSL_do_handshake(ssl);
233 if (ret > 0) */
234 ret = SSL_write(ssl, out, outl);
235
236 switch (SSL_get_error(ssl, ret)) {
237 case SSL_ERROR_NONE:
238 if (ret <= 0)
239 break;
240 if (bs->renegotiate_count > 0) {
241 bs->byte_count += ret;
242 if (bs->byte_count > bs->renegotiate_count) {
243 bs->byte_count = 0;
244 bs->num_renegotiates++;
245 SSL_renegotiate(ssl);
246 r = 1;
247 }
248 }
249 if ((bs->renegotiate_timeout > 0) && (!r)) {
250 time_t tm;
251
252 tm = time(NULL);
253 if (tm > bs->last_time + bs->renegotiate_timeout) {
254 bs->last_time = tm;
255 bs->num_renegotiates++;
256 SSL_renegotiate(ssl);
257 }
258 }
259 break;
260 case SSL_ERROR_WANT_WRITE:
261 BIO_set_retry_write(b);
262 break;
263 case SSL_ERROR_WANT_READ:
264 BIO_set_retry_read(b);
265 break;
266 case SSL_ERROR_WANT_X509_LOOKUP:
267 BIO_set_retry_special(b);
268 retry_reason = BIO_RR_SSL_X509_LOOKUP;
269 break;
270 case SSL_ERROR_WANT_CONNECT:
271 BIO_set_retry_special(b);
272 retry_reason = BIO_RR_CONNECT;
273 case SSL_ERROR_SYSCALL:
274 case SSL_ERROR_SSL:
275 default:
276 break;
277 }
278
279 b->retry_reason = retry_reason;
280 return (ret);
281}
282
283static long
284ssl_ctrl(BIO *b, int cmd, long num, void *ptr)
285{
286 SSL **sslp, *ssl;
287 BIO_SSL *bs;
288 BIO *dbio, *bio;
289 long ret = 1;
290
291 bs = (BIO_SSL *)b->ptr;
292 ssl = bs->ssl;
293 if ((ssl == NULL) && (cmd != BIO_C_SET_SSL))
294 return (0);
295 switch (cmd) {
296 case BIO_CTRL_RESET:
297 SSL_shutdown(ssl);
298
299 if (ssl->handshake_func == ssl->method->ssl_connect)
300 SSL_set_connect_state(ssl);
301 else if (ssl->handshake_func == ssl->method->ssl_accept)
302 SSL_set_accept_state(ssl);
303
304 SSL_clear(ssl);
305
306 if (b->next_bio != NULL)
307 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
308 else if (ssl->rbio != NULL)
309 ret = BIO_ctrl(ssl->rbio, cmd, num, ptr);
310 else
311 ret = 1;
312 break;
313 case BIO_CTRL_INFO:
314 ret = 0;
315 break;
316 case BIO_C_SSL_MODE:
317 if (num) /* client mode */
318 SSL_set_connect_state(ssl);
319 else
320 SSL_set_accept_state(ssl);
321 break;
322 case BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT:
323 ret = bs->renegotiate_timeout;
324 if (num < 60)
325 num = 5;
326 bs->renegotiate_timeout = (unsigned long)num;
327 bs->last_time = time(NULL);
328 break;
329 case BIO_C_SET_SSL_RENEGOTIATE_BYTES:
330 ret = bs->renegotiate_count;
331 if ((long)num >=512)
332 bs->renegotiate_count = (unsigned long)num;
333 break;
334 case BIO_C_GET_SSL_NUM_RENEGOTIATES:
335 ret = bs->num_renegotiates;
336 break;
337 case BIO_C_SET_SSL:
338 if (ssl != NULL) {
339 ssl_free(b);
340 if (!ssl_new(b))
341 return 0;
342 }
343 b->shutdown = (int)num;
344 ssl = (SSL *)ptr;
345 ((BIO_SSL *)b->ptr)->ssl = ssl;
346 bio = SSL_get_rbio(ssl);
347 if (bio != NULL) {
348 if (b->next_bio != NULL)
349 BIO_push(bio, b->next_bio);
350 b->next_bio = bio;
351 CRYPTO_add(&bio->references, 1, CRYPTO_LOCK_BIO);
352 }
353 b->init = 1;
354 break;
355 case BIO_C_GET_SSL:
356 if (ptr != NULL) {
357 sslp = (SSL **)ptr;
358 *sslp = ssl;
359 } else
360 ret = 0;
361 break;
362 case BIO_CTRL_GET_CLOSE:
363 ret = b->shutdown;
364 break;
365 case BIO_CTRL_SET_CLOSE:
366 b->shutdown = (int)num;
367 break;
368 case BIO_CTRL_WPENDING:
369 ret = BIO_ctrl(ssl->wbio, cmd, num, ptr);
370 break;
371 case BIO_CTRL_PENDING:
372 ret = SSL_pending(ssl);
373 if (ret == 0)
374 ret = BIO_pending(ssl->rbio);
375 break;
376 case BIO_CTRL_FLUSH:
377 BIO_clear_retry_flags(b);
378 ret = BIO_ctrl(ssl->wbio, cmd, num, ptr);
379 BIO_copy_next_retry(b);
380 break;
381 case BIO_CTRL_PUSH:
382 if ((b->next_bio != NULL) && (b->next_bio != ssl->rbio)) {
383 SSL_set_bio(ssl, b->next_bio, b->next_bio);
384 CRYPTO_add(&b->next_bio->references, 1,
385 CRYPTO_LOCK_BIO);
386 }
387 break;
388 case BIO_CTRL_POP:
389 /* Only detach if we are the BIO explicitly being popped */
390 if (b == ptr) {
391 /* Shouldn't happen in practice because the
392 * rbio and wbio are the same when pushed.
393 */
394 if (ssl->rbio != ssl->wbio)
395 BIO_free_all(ssl->wbio);
396 if (b->next_bio != NULL)
397 CRYPTO_add(&b->next_bio->references, -1, CRYPTO_LOCK_BIO);
398 ssl->wbio = NULL;
399 ssl->rbio = NULL;
400 }
401 break;
402 case BIO_C_DO_STATE_MACHINE:
403 BIO_clear_retry_flags(b);
404
405 b->retry_reason = 0;
406 ret = (int)SSL_do_handshake(ssl);
407
408 switch (SSL_get_error(ssl, (int)ret)) {
409 case SSL_ERROR_WANT_READ:
410 BIO_set_flags(b,
411 BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY);
412 break;
413 case SSL_ERROR_WANT_WRITE:
414 BIO_set_flags(b,
415 BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY);
416 break;
417 case SSL_ERROR_WANT_CONNECT:
418 BIO_set_flags(b,
419 BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY);
420 b->retry_reason = b->next_bio->retry_reason;
421 break;
422 default:
423 break;
424 }
425 break;
426 case BIO_CTRL_DUP:
427 dbio = (BIO *)ptr;
428 if (((BIO_SSL *)dbio->ptr)->ssl != NULL)
429 SSL_free(((BIO_SSL *)dbio->ptr)->ssl);
430 ((BIO_SSL *)dbio->ptr)->ssl = SSL_dup(ssl);
431 ((BIO_SSL *)dbio->ptr)->renegotiate_count =
432 ((BIO_SSL *)b->ptr)->renegotiate_count;
433 ((BIO_SSL *)dbio->ptr)->byte_count =
434 ((BIO_SSL *)b->ptr)->byte_count;
435 ((BIO_SSL *)dbio->ptr)->renegotiate_timeout =
436 ((BIO_SSL *)b->ptr)->renegotiate_timeout;
437 ((BIO_SSL *)dbio->ptr)->last_time =
438 ((BIO_SSL *)b->ptr)->last_time;
439 ret = (((BIO_SSL *)dbio->ptr)->ssl != NULL);
440 break;
441 case BIO_C_GET_FD:
442 ret = BIO_ctrl(ssl->rbio, cmd, num, ptr);
443 break;
444 case BIO_CTRL_SET_CALLBACK:
445 {
446 ret = 0;
447 }
448 break;
449 case BIO_CTRL_GET_CALLBACK:
450 {
451 void (**fptr)(const SSL *xssl, int type, int val);
452
453 fptr = (void (**)(const SSL *xssl, int type, int val))
454 ptr;
455 *fptr = SSL_get_info_callback(ssl);
456 }
457 break;
458 default:
459 ret = BIO_ctrl(ssl->rbio, cmd, num, ptr);
460 break;
461 }
462 return (ret);
463}
464
465static long
466ssl_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp)
467{
468 SSL *ssl;
469 BIO_SSL *bs;
470 long ret = 1;
471
472 bs = (BIO_SSL *)b->ptr;
473 ssl = bs->ssl;
474 switch (cmd) {
475 case BIO_CTRL_SET_CALLBACK:
476 {
477 /* FIXME: setting this via a completely different prototype
478 seems like a crap idea */
479 SSL_set_info_callback(ssl,
480 (void (*)(const SSL *, int, int))fp);
481 }
482 break;
483 default:
484 ret = BIO_callback_ctrl(ssl->rbio, cmd, fp);
485 break;
486 }
487 return (ret);
488}
489
490static int
491ssl_puts(BIO *bp, const char *str)
492{
493 int n, ret;
494
495 n = strlen(str);
496 ret = BIO_write(bp, str, n);
497 return (ret);
498}
499
500BIO *
501BIO_new_buffer_ssl_connect(SSL_CTX *ctx)
502{
503 BIO *ret = NULL, *buf = NULL, *ssl = NULL;
504
505 if ((buf = BIO_new(BIO_f_buffer())) == NULL)
506 goto err;
507 if ((ssl = BIO_new_ssl_connect(ctx)) == NULL)
508 goto err;
509 if ((ret = BIO_push(buf, ssl)) == NULL)
510 goto err;
511 return (ret);
512
513 err:
514 BIO_free(buf);
515 BIO_free(ssl);
516 return (NULL);
517}
518LSSL_ALIAS(BIO_new_buffer_ssl_connect);
519
520BIO *
521BIO_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 goto err;
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);
532
533 err:
534 BIO_free(con);
535 BIO_free(ssl);
536 return (NULL);
537}
538LSSL_ALIAS(BIO_new_ssl_connect);
539
540BIO *
541BIO_new_ssl(SSL_CTX *ctx, int client)
542{
543 BIO *ret;
544 SSL *ssl;
545
546 if ((ret = BIO_new(BIO_f_ssl())) == NULL)
547 goto err;
548 if ((ssl = SSL_new(ctx)) == NULL)
549 goto err;
550
551 if (client)
552 SSL_set_connect_state(ssl);
553 else
554 SSL_set_accept_state(ssl);
555
556 BIO_set_ssl(ret, ssl, BIO_CLOSE);
557 return (ret);
558
559 err:
560 BIO_free(ret);
561 return (NULL);
562}
563LSSL_ALIAS(BIO_new_ssl);
564
565int
566BIO_ssl_copy_session_id(BIO *t, BIO *f)
567{
568 t = BIO_find_type(t, BIO_TYPE_SSL);
569 f = BIO_find_type(f, BIO_TYPE_SSL);
570 if ((t == NULL) || (f == NULL))
571 return (0);
572 if ((((BIO_SSL *)t->ptr)->ssl == NULL) ||
573 (((BIO_SSL *)f->ptr)->ssl == NULL))
574 return (0);
575 if (!SSL_copy_session_id(((BIO_SSL *)t->ptr)->ssl,
576 ((BIO_SSL *)f->ptr)->ssl))
577 return (0);
578 return (1);
579}
580LSSL_ALIAS(BIO_ssl_copy_session_id);
581
582void
583BIO_ssl_shutdown(BIO *b)
584{
585 SSL *s;
586
587 while (b != NULL) {
588 if (b->method->type == BIO_TYPE_SSL) {
589 s = ((BIO_SSL *)b->ptr)->ssl;
590 SSL_shutdown(s);
591 break;
592 }
593 b = b->next_bio;
594 }
595}
596LSSL_ALIAS(BIO_ssl_shutdown);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-28 22:40:14 +0000