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1 /* ssl/ssltest.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 <limits.h>
64
65 #include "openssl/e_os.h"
66
67 #include <openssl/bio.h>
68 #include <openssl/crypto.h>
69 #include <openssl/x509.h>
70 #include <openssl/ssl.h>
71 #include <openssl/err.h>
72 #ifdef WINDOWS
73 #include "../crypto/bio/bss_file.c"
74 #endif
75
76 #if defined(NO_RSA) && !defined(NO_SSL2)
77 #define NO_SSL2
78 #endif
79
80 #ifdef VMS
81 # define TEST_SERVER_CERT "SYS$DISK:[-.APPS]SERVER.PEM"
82 # define TEST_CLIENT_CERT "SYS$DISK:[-.APPS]CLIENT.PEM"
83 #else
84 # define TEST_SERVER_CERT "../apps/server.pem"
85 # define TEST_CLIENT_CERT "../apps/client.pem"
86 #endif
87
88 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
89 #ifndef NO_RSA
90 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export,int keylength);
91 #endif
92 #ifndef NO_DH
93 static DH *get_dh512(void);
94 #endif
95 BIO *bio_err=NULL;
96 BIO *bio_stdout=NULL;
97
98 static char *cipher=NULL;
99 int verbose=0;
100 int debug=0;
101 #if 0
102 /* Not used yet. */
103 #ifdef FIONBIO
104 static int s_nbio=0;
105 #endif
106 #endif
107
108
109 int doit_biopair(SSL *s_ssl,SSL *c_ssl,long bytes);
110 int doit(SSL *s_ssl,SSL *c_ssl,long bytes);
111 static void sv_usage(void)
112 {
113 fprintf(stderr,"usage: ssltest [args ...]\n");
114 fprintf(stderr,"\n");
115 fprintf(stderr," -server_auth - check server certificate\n");
116 fprintf(stderr," -client_auth - do client authentication\n");
117 fprintf(stderr," -v - more output\n");
118 fprintf(stderr," -d - debug output\n");
119 fprintf(stderr," -reuse - use session-id reuse\n");
120 fprintf(stderr," -num <val> - number of connections to perform\n");
121 fprintf(stderr," -bytes <val> - number of bytes to swap between client/server\n");
122 #ifndef NO_SSL2
123 fprintf(stderr," -ssl2 - use SSLv2\n");
124 #endif
125 #ifndef NO_SSL3
126 fprintf(stderr," -ssl3 - use SSLv3\n");
127 #endif
128 #ifndef NO_TLS1
129 fprintf(stderr," -tls1 - use TLSv1\n");
130 #endif
131 fprintf(stderr," -CApath arg - PEM format directory of CA's\n");
132 fprintf(stderr," -CAfile arg - PEM format file of CA's\n");
133 fprintf(stderr," -cert arg - Certificate file\n");
134 fprintf(stderr," -s_cert arg - Just the server certificate file\n");
135 fprintf(stderr," -c_cert arg - Just the client certificate file\n");
136 fprintf(stderr," -cipher arg - The cipher list\n");
137 fprintf(stderr," -bio_pair - Use BIO pairs\n");
138 fprintf(stderr," -f - Test even cases that can't work\n");
139 }
140
141 int main(int argc, char *argv[])
142 {
143 char *CApath=NULL,*CAfile=NULL;
144 int badop=0;
145 int bio_pair=0;
146 int force=0;
147 int tls1=0,ssl2=0,ssl3=0,ret=1;
148 int client_auth=0;
149 int server_auth=0,i;
150 char *server_cert=TEST_SERVER_CERT;
151 char *client_cert=TEST_CLIENT_CERT;
152 SSL_CTX *s_ctx=NULL;
153 SSL_CTX *c_ctx=NULL;
154 SSL_METHOD *meth=NULL;
155 SSL *c_ssl,*s_ssl;
156 int number=1,reuse=0;
157 long bytes=1L;
158 SSL_CIPHER *ciph;
159 #ifndef NO_DH
160 DH *dh;
161 #endif
162
163 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
164 bio_stdout=BIO_new_fp(stdout,BIO_NOCLOSE);
165
166 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
167
168 argc--;
169 argv++;
170
171 while (argc >= 1)
172 {
173 if (strcmp(*argv,"-server_auth") == 0)
174 server_auth=1;
175 else if (strcmp(*argv,"-client_auth") == 0)
176 client_auth=1;
177 else if (strcmp(*argv,"-v") == 0)
178 verbose=1;
179 else if (strcmp(*argv,"-d") == 0)
180 debug=1;
181 else if (strcmp(*argv,"-reuse") == 0)
182 reuse=1;
183 else if (strcmp(*argv,"-ssl2") == 0)
184 ssl2=1;
185 else if (strcmp(*argv,"-tls1") == 0)
186 tls1=1;
187 else if (strcmp(*argv,"-ssl3") == 0)
188 ssl3=1;
189 else if (strncmp(*argv,"-num",4) == 0)
190 {
191 if (--argc < 1) goto bad;
192 number= atoi(*(++argv));
193 if (number == 0) number=1;
194 }
195 else if (strcmp(*argv,"-bytes") == 0)
196 {
197 if (--argc < 1) goto bad;
198 bytes= atol(*(++argv));
199 if (bytes == 0L) bytes=1L;
200 i=strlen(argv[0]);
201 if (argv[0][i-1] == 'k') bytes*=1024L;
202 if (argv[0][i-1] == 'm') bytes*=1024L*1024L;
203 }
204 else if (strcmp(*argv,"-cert") == 0)
205 {
206 if (--argc < 1) goto bad;
207 server_cert= *(++argv);
208 }
209 else if (strcmp(*argv,"-s_cert") == 0)
210 {
211 if (--argc < 1) goto bad;
212 server_cert= *(++argv);
213 }
214 else if (strcmp(*argv,"-c_cert") == 0)
215 {
216 if (--argc < 1) goto bad;
217 client_cert= *(++argv);
218 }
219 else if (strcmp(*argv,"-cipher") == 0)
220 {
221 if (--argc < 1) goto bad;
222 cipher= *(++argv);
223 }
224 else if (strcmp(*argv,"-CApath") == 0)
225 {
226 if (--argc < 1) goto bad;
227 CApath= *(++argv);
228 }
229 else if (strcmp(*argv,"-CAfile") == 0)
230 {
231 if (--argc < 1) goto bad;
232 CAfile= *(++argv);
233 }
234 else if (strcmp(*argv,"-bio_pair") == 0)
235 {
236 bio_pair = 1;
237 }
238 else if (strcmp(*argv,"-f") == 0)
239 {
240 force = 1;
241 }
242 else
243 {
244 fprintf(stderr,"unknown option %s\n",*argv);
245 badop=1;
246 break;
247 }
248 argc--;
249 argv++;
250 }
251 if (badop)
252 {
253 bad:
254 sv_usage();
255 goto end;
256 }
257
258 if (!ssl2 && !ssl3 && !tls1 && number > 1 && !reuse && !force)
259 {
260 fprintf(stderr, "This case cannot work. Use -f switch to perform "
261 "the test anyway\n"
262 "(and -d to see what happens, "
263 "and -bio_pair to really make it happen :-)\n"
264 "or add one of -ssl2, -ssl3, -tls1, -reuse to "
265 "avoid protocol mismatch.\n");
266 exit(1);
267 }
268
269 /* if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */
270
271 SSL_library_init();
272 SSL_load_error_strings();
273
274 #if !defined(NO_SSL2) && !defined(NO_SSL3)
275 if (ssl2)
276 meth=SSLv2_method();
277 else
278 if (tls1)
279 meth=TLSv1_method();
280 else
281 if (ssl3)
282 meth=SSLv3_method();
283 else
284 meth=SSLv23_method();
285 #else
286 #ifdef NO_SSL2
287 meth=SSLv3_method();
288 #else
289 meth=SSLv2_method();
290 #endif
291 #endif
292
293 c_ctx=SSL_CTX_new(meth);
294 s_ctx=SSL_CTX_new(meth);
295 if ((c_ctx == NULL) || (s_ctx == NULL))
296 {
297 ERR_print_errors(bio_err);
298 goto end;
299 }
300
301 if (cipher != NULL)
302 {
303 SSL_CTX_set_cipher_list(c_ctx,cipher);
304 SSL_CTX_set_cipher_list(s_ctx,cipher);
305 }
306
307 #ifndef NO_DH
308 dh=get_dh512();
309 SSL_CTX_set_tmp_dh(s_ctx,dh);
310 DH_free(dh);
311 #endif
312
313 #ifndef NO_RSA
314 SSL_CTX_set_tmp_rsa_callback(s_ctx,tmp_rsa_cb);
315 #endif
316
317 if (!SSL_CTX_use_certificate_file(s_ctx,server_cert,SSL_FILETYPE_PEM))
318 {
319 ERR_print_errors(bio_err);
320 }
321 else if (!SSL_CTX_use_PrivateKey_file(s_ctx,server_cert,
322 SSL_FILETYPE_PEM))
323 {
324 ERR_print_errors(bio_err);
325 goto end;
326 }
327
328 if (client_auth)
329 {
330 SSL_CTX_use_certificate_file(c_ctx,client_cert,
331 SSL_FILETYPE_PEM);
332 SSL_CTX_use_PrivateKey_file(c_ctx,client_cert,
333 SSL_FILETYPE_PEM);
334 }
335
336 if ( (!SSL_CTX_load_verify_locations(s_ctx,CAfile,CApath)) ||
337 (!SSL_CTX_set_default_verify_paths(s_ctx)) ||
338 (!SSL_CTX_load_verify_locations(c_ctx,CAfile,CApath)) ||
339 (!SSL_CTX_set_default_verify_paths(c_ctx)))
340 {
341 /* fprintf(stderr,"SSL_load_verify_locations\n"); */
342 ERR_print_errors(bio_err);
343 /* goto end; */
344 }
345
346 if (client_auth)
347 {
348 fprintf(stderr,"client authentication\n");
349 SSL_CTX_set_verify(s_ctx,
350 SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
351 verify_callback);
352 }
353 if (server_auth)
354 {
355 fprintf(stderr,"server authentication\n");
356 SSL_CTX_set_verify(c_ctx,SSL_VERIFY_PEER,
357 verify_callback);
358 }
359
360 c_ssl=SSL_new(c_ctx);
361 s_ssl=SSL_new(s_ctx);
362
363 for (i=0; i<number; i++)
364 {
365 if (!reuse) SSL_set_session(c_ssl,NULL);
366 if (bio_pair)
367 ret=doit_biopair(s_ssl,c_ssl,bytes);
368 else
369 ret=doit(s_ssl,c_ssl,bytes);
370 }
371
372 if (!verbose)
373 {
374 ciph=SSL_get_current_cipher(c_ssl);
375 fprintf(stdout,"Protocol %s, cipher %s, %s\n",
376 SSL_get_version(c_ssl),
377 SSL_CIPHER_get_version(ciph),
378 SSL_CIPHER_get_name(ciph));
379 }
380 if ((number > 1) || (bytes > 1L))
381 printf("%d handshakes of %ld bytes done\n",number,bytes);
382
383 SSL_free(s_ssl);
384 SSL_free(c_ssl);
385
386 end:
387 if (s_ctx != NULL) SSL_CTX_free(s_ctx);
388 if (c_ctx != NULL) SSL_CTX_free(c_ctx);
389
390 if (bio_stdout != NULL) BIO_free(bio_stdout);
391
392 ERR_free_strings();
393 ERR_remove_state(0);
394 EVP_cleanup();
395 CRYPTO_mem_leaks(bio_err);
396 EXIT(ret);
397 }
398
399 int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count)
400 {
401 long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
402 BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
403 BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL;
404 SSL_CIPHER *ciph;
405 int ret = 1;
406
407 size_t bufsiz = 256; /* small buffer for testing */
408
409 if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz))
410 goto err;
411 if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz))
412 goto err;
413
414 s_ssl_bio = BIO_new(BIO_f_ssl());
415 if (!s_ssl_bio)
416 goto err;
417
418 c_ssl_bio = BIO_new(BIO_f_ssl());
419 if (!c_ssl_bio)
420 goto err;
421
422 SSL_set_connect_state(c_ssl);
423 SSL_set_bio(c_ssl, client, client);
424 (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
425
426 SSL_set_accept_state(s_ssl);
427 SSL_set_bio(s_ssl, server, server);
428 (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
429
430 do
431 {
432 /* c_ssl_bio: SSL filter BIO
433 *
434 * client: pseudo-I/O for SSL library
435 *
436 * client_io: client's SSL communication; usually to be
437 * relayed over some I/O facility, but in this
438 * test program, we're the server, too:
439 *
440 * server_io: server's SSL communication
441 *
442 * server: pseudo-I/O for SSL library
443 *
444 * s_ssl_bio: SSL filter BIO
445 *
446 * The client and the server each employ a "BIO pair":
447 * client + client_io, server + server_io.
448 * BIO pairs are symmetric. A BIO pair behaves similar
449 * to a non-blocking socketpair (but both endpoints must
450 * be handled by the same thread).
451 *
452 * Useful functions for querying the state of BIO pair endpoints:
453 *
454 * BIO_ctrl_pending(bio) number of bytes we can read now
455 * BIO_ctrl_get_read_request(bio) number of bytes needed to fulfil
456 * other side's read attempt
457 * BIO_ctrl_get_write_gurantee(bio) number of bytes we can write now
458 *
459 * ..._read_request is never more than ..._write_guarantee;
460 * it depends on the application which one you should use.
461 */
462
463 /* We have non-blocking behaviour throughout this test program, but
464 * can be sure that there is *some* progress in each iteration; so
465 * we don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE
466 * -- we just try everything in each iteration
467 */
468
469 {
470 /* CLIENT */
471
472 MS_STATIC char cbuf[1024*8];
473 int i, r;
474
475 if (debug)
476 if (SSL_in_init(c_ssl))
477 printf("client waiting in SSL_connect - %s\n",
478 SSL_state_string_long(c_ssl));
479
480 if (cw_num > 0)
481 {
482 /* Write to server. */
483
484 if (cw_num > (long)sizeof cbuf)
485 i = sizeof cbuf;
486 else
487 i = (int)cw_num;
488 r = BIO_write(c_ssl_bio, cbuf, i);
489 if (r == -1)
490 {
491 if (!BIO_should_retry(c_ssl_bio))
492 {
493 fprintf(stderr,"ERROR in CLIENT\n");
494 goto err;
495 }
496 /* BIO_should_retry(...) can just be ignored here.
497 * The library expects us to call BIO_write with
498 * the same arguments again, and that's what we will
499 * do in the next iteration. */
500 }
501 else if (r == 0)
502 {
503 fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
504 goto err;
505 }
506 else
507 {
508 if (debug)
509 printf("client wrote %d\n", r);
510 cw_num -= r;
511 }
512 }
513
514 if (cr_num > 0)
515 {
516 /* Read from server. */
517
518 r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
519 if (r < 0)
520 {
521 if (!BIO_should_retry(c_ssl_bio))
522 {
523 fprintf(stderr,"ERROR in CLIENT\n");
524 goto err;
525 }
526 /* Again, "BIO_should_retry" can be ignored. */
527 }
528 else if (r == 0)
529 {
530 fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
531 goto err;
532 }
533 else
534 {
535 if (debug)
536 printf("client read %d\n", r);
537 cr_num -= r;
538 }
539 }
540 }
541
542 {
543 /* SERVER */
544
545 MS_STATIC char sbuf[1024*8];
546 int i, r;
547
548 if (debug)
549 if (SSL_in_init(s_ssl))
550 printf("server waiting in SSL_accept - %s\n",
551 SSL_state_string_long(s_ssl));
552
553 if (sw_num > 0)
554 {
555 /* Write to client. */
556
557 if (sw_num > (long)sizeof sbuf)
558 i = sizeof sbuf;
559 else
560 i = (int)sw_num;
561 r = BIO_write(s_ssl_bio, sbuf, i);
562 if (r == -1)
563 {
564 if (!BIO_should_retry(s_ssl_bio))
565 {
566 fprintf(stderr,"ERROR in SERVER\n");
567 goto err;
568 }
569 /* Ignore "BIO_should_retry". */
570 }
571 else if (r == 0)
572 {
573 fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
574 goto err;
575 }
576 else
577 {
578 if (debug)
579 printf("server wrote %d\n", r);
580 sw_num -= r;
581 }
582 }
583
584 if (sr_num > 0)
585 {
586 /* Read from client. */
587
588 r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
589 if (r < 0)
590 {
591 if (!BIO_should_retry(s_ssl_bio))
592 {
593 fprintf(stderr,"ERROR in SERVER\n");
594 goto err;
595 }
596 /* blah, blah */
597 }
598 else if (r == 0)
599 {
600 fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
601 goto err;
602 }
603 else
604 {
605 if (debug)
606 printf("server read %d\n", r);
607 sr_num -= r;
608 }
609 }
610 }
611
612 {
613 /* "I/O" BETWEEN CLIENT AND SERVER. */
614
615 #define RELAYBUFSIZ 200
616 static char buf[RELAYBUFSIZ];
617
618 /* RELAYBUF is arbitrary. When writing data over some real
619 * network, use a buffer of the same size as in the BIO_pipe
620 * and make that size large (for reading from the network
621 * small buffers usually won't hurt).
622 * Here sizes differ for testing. */
623
624 size_t r1, r2;
625 size_t num;
626 int r;
627 static int prev_progress = 1;
628 int progress = 0;
629
630 /* client to server */
631 do
632 {
633 r1 = BIO_ctrl_pending(client_io);
634 r2 = BIO_ctrl_get_write_guarantee(server_io);
635
636 num = r1;
637 if (r2 < num)
638 num = r2;
639 if (num)
640 {
641 if (sizeof buf < num)
642 num = sizeof buf;
643 if (INT_MAX < num) /* yeah, right */
644 num = INT_MAX;
645
646 r = BIO_read(client_io, buf, (int)num);
647 if (r != (int)num) /* can't happen */
648 {
649 fprintf(stderr, "ERROR: BIO_read could not read "
650 "BIO_ctrl_pending() bytes");
651 goto err;
652 }
653 r = BIO_write(server_io, buf, (int)num);
654 if (r != (int)num) /* can't happen */
655 {
656 fprintf(stderr, "ERROR: BIO_write could not write "
657 "BIO_ctrl_get_write_guarantee() bytes");
658 goto err;
659 }
660 progress = 1;
661
662 if (debug)
663 printf("C->S relaying: %d bytes\n", (int)num);
664 }
665 }
666 while (r1 && r2);
667
668 /* server to client */
669 do
670 {
671 r1 = BIO_ctrl_pending(server_io);
672 r2 = BIO_ctrl_get_write_guarantee(client_io);
673
674 num = r1;
675 if (r2 < num)
676 num = r2;
677 if (num)
678 {
679 if (sizeof buf < num)
680 num = sizeof buf;
681 if (INT_MAX < num)
682 num = INT_MAX;
683
684 r = BIO_read(server_io, buf, (int)num);
685 if (r != (int)num) /* can't happen */
686 {
687 fprintf(stderr, "ERROR: BIO_read could not read "
688 "BIO_ctrl_pending() bytes");
689 goto err;
690 }
691 r = BIO_write(client_io, buf, (int)num);
692 if (r != (int)num) /* can't happen */
693 {
694 fprintf(stderr, "ERROR: BIO_write could not write "
695 "BIO_ctrl_get_write_guarantee() bytes");
696 goto err;
697 }
698 progress = 1;
699
700 if (debug)
701 printf("S->C relaying: %d bytes\n", (int)num);
702 }
703 }
704 while (r1 && r2);
705
706 if (!progress && !prev_progress)
707 if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0)
708 /* can't happen */
709 {
710 fprintf(stderr, "ERROR: got stuck\n");
711 goto err;
712 }
713 prev_progress = progress;
714 }
715 }
716 while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
717
718 ciph = SSL_get_current_cipher(c_ssl);
719 if (verbose)
720 fprintf(stdout,"DONE via BIO pair, protocol %s, cipher %s, %s\n",
721 SSL_get_version(c_ssl),
722 SSL_CIPHER_get_version(ciph),
723 SSL_CIPHER_get_name(ciph));
724 ret = 0;
725
726 err:
727 ERR_print_errors(bio_err);
728
729 if (server)
730 BIO_free(server);
731 if (server_io)
732 BIO_free(server_io);
733 if (client)
734 BIO_free(client);
735 if (client_io)
736 BIO_free(client_io);
737 if (s_ssl_bio)
738 BIO_free(s_ssl_bio);
739 if (c_ssl_bio)
740 BIO_free(c_ssl_bio);
741
742 return ret;
743 }
744
745
746 #define W_READ 1
747 #define W_WRITE 2
748 #define C_DONE 1
749 #define S_DONE 2
750
751 int doit(SSL *s_ssl, SSL *c_ssl, long count)
752 {
753 MS_STATIC char cbuf[1024*8],sbuf[1024*8];
754 long cw_num=count,cr_num=count;
755 long sw_num=count,sr_num=count;
756 int ret=1;
757 BIO *c_to_s=NULL;
758 BIO *s_to_c=NULL;
759 BIO *c_bio=NULL;
760 BIO *s_bio=NULL;
761 int c_r,c_w,s_r,s_w;
762 int c_want,s_want;
763 int i,j;
764 int done=0;
765 int c_write,s_write;
766 int do_server=0,do_client=0;
767 SSL_CIPHER *ciph;
768
769 c_to_s=BIO_new(BIO_s_mem());
770 s_to_c=BIO_new(BIO_s_mem());
771 if ((s_to_c == NULL) || (c_to_s == NULL))
772 {
773 ERR_print_errors(bio_err);
774 goto err;
775 }
776
777 c_bio=BIO_new(BIO_f_ssl());
778 s_bio=BIO_new(BIO_f_ssl());
779 if ((c_bio == NULL) || (s_bio == NULL))
780 {
781 ERR_print_errors(bio_err);
782 goto err;
783 }
784
785 SSL_set_connect_state(c_ssl);
786 SSL_set_bio(c_ssl,s_to_c,c_to_s);
787 BIO_set_ssl(c_bio,c_ssl,BIO_NOCLOSE);
788
789 SSL_set_accept_state(s_ssl);
790 SSL_set_bio(s_ssl,c_to_s,s_to_c);
791 BIO_set_ssl(s_bio,s_ssl,BIO_NOCLOSE);
792
793 c_r=0; s_r=1;
794 c_w=1; s_w=0;
795 c_want=W_WRITE;
796 s_want=0;
797 c_write=1,s_write=0;
798
799 /* We can always do writes */
800 for (;;)
801 {
802 do_server=0;
803 do_client=0;
804
805 i=(int)BIO_pending(s_bio);
806 if ((i && s_r) || s_w) do_server=1;
807
808 i=(int)BIO_pending(c_bio);
809 if ((i && c_r) || c_w) do_client=1;
810
811 if (do_server && debug)
812 {
813 if (SSL_in_init(s_ssl))
814 printf("server waiting in SSL_accept - %s\n",
815 SSL_state_string_long(s_ssl));
816 /* else if (s_write)
817 printf("server:SSL_write()\n");
818 else
819 printf("server:SSL_read()\n"); */
820 }
821
822 if (do_client && debug)
823 {
824 if (SSL_in_init(c_ssl))
825 printf("client waiting in SSL_connect - %s\n",
826 SSL_state_string_long(c_ssl));
827 /* else if (c_write)
828 printf("client:SSL_write()\n");
829 else
830 printf("client:SSL_read()\n"); */
831 }
832
833 if (!do_client && !do_server)
834 {
835 fprintf(stdout,"ERROR IN STARTUP\n");
836 ERR_print_errors(bio_err);
837 break;
838 }
839 if (do_client && !(done & C_DONE))
840 {
841 if (c_write)
842 {
843 j=(cw_num > (long)sizeof(cbuf))
844 ?sizeof(cbuf):(int)cw_num;
845 i=BIO_write(c_bio,cbuf,j);
846 if (i < 0)
847 {
848 c_r=0;
849 c_w=0;
850 if (BIO_should_retry(c_bio))
851 {
852 if (BIO_should_read(c_bio))
853 c_r=1;
854 if (BIO_should_write(c_bio))
855 c_w=1;
856 }
857 else
858 {
859 fprintf(stderr,"ERROR in CLIENT\n");
860 ERR_print_errors(bio_err);
861 goto err;
862 }
863 }
864 else if (i == 0)
865 {
866 fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
867 goto err;
868 }
869 else
870 {
871 if (debug)
872 printf("client wrote %d\n",i);
873 /* ok */
874 s_r=1;
875 c_write=0;
876 cw_num-=i;
877 }
878 }
879 else
880 {
881 i=BIO_read(c_bio,cbuf,sizeof(cbuf));
882 if (i < 0)
883 {
884 c_r=0;
885 c_w=0;
886 if (BIO_should_retry(c_bio))
887 {
888 if (BIO_should_read(c_bio))
889 c_r=1;
890 if (BIO_should_write(c_bio))
891 c_w=1;
892 }
893 else
894 {
895 fprintf(stderr,"ERROR in CLIENT\n");
896 ERR_print_errors(bio_err);
897 goto err;
898 }
899 }
900 else if (i == 0)
901 {
902 fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
903 goto err;
904 }
905 else
906 {
907 if (debug)
908 printf("client read %d\n",i);
909 cr_num-=i;
910 if (sw_num > 0)
911 {
912 s_write=1;
913 s_w=1;
914 }
915 if (cr_num <= 0)
916 {
917 s_write=1;
918 s_w=1;
919 done=S_DONE|C_DONE;
920 }
921 }
922 }
923 }
924
925 if (do_server && !(done & S_DONE))
926 {
927 if (!s_write)
928 {
929 i=BIO_read(s_bio,sbuf,sizeof(cbuf));
930 if (i < 0)
931 {
932 s_r=0;
933 s_w=0;
934 if (BIO_should_retry(s_bio))
935 {
936 if (BIO_should_read(s_bio))
937 s_r=1;
938 if (BIO_should_write(s_bio))
939 s_w=1;
940 }
941 else
942 {
943 fprintf(stderr,"ERROR in SERVER\n");
944 ERR_print_errors(bio_err);
945 goto err;
946 }
947 }
948 else if (i == 0)
949 {
950 ERR_print_errors(bio_err);
951 fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_read\n");
952 goto err;
953 }
954 else
955 {
956 if (debug)
957 printf("server read %d\n",i);
958 sr_num-=i;
959 if (cw_num > 0)
960 {
961 c_write=1;
962 c_w=1;
963 }
964 if (sr_num <= 0)
965 {
966 s_write=1;
967 s_w=1;
968 c_write=0;
969 }
970 }
971 }
972 else
973 {
974 j=(sw_num > (long)sizeof(sbuf))?
975 sizeof(sbuf):(int)sw_num;
976 i=BIO_write(s_bio,sbuf,j);
977 if (i < 0)
978 {
979 s_r=0;
980 s_w=0;
981 if (BIO_should_retry(s_bio))
982 {
983 if (BIO_should_read(s_bio))
984 s_r=1;
985 if (BIO_should_write(s_bio))
986 s_w=1;
987 }
988 else
989 {
990 fprintf(stderr,"ERROR in SERVER\n");
991 ERR_print_errors(bio_err);
992 goto err;
993 }
994 }
995 else if (i == 0)
996 {
997 ERR_print_errors(bio_err);
998 fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_write\n");
999 goto err;
1000 }
1001 else
1002 {
1003 if (debug)
1004 printf("server wrote %d\n",i);
1005 sw_num-=i;
1006 s_write=0;
1007 c_r=1;
1008 if (sw_num <= 0)
1009 done|=S_DONE;
1010 }
1011 }
1012 }
1013
1014 if ((done & S_DONE) && (done & C_DONE)) break;
1015 }
1016
1017 ciph=SSL_get_current_cipher(c_ssl);
1018 if (verbose)
1019 fprintf(stdout,"DONE, protocol %s, cipher %s, %s\n",
1020 SSL_get_version(c_ssl),
1021 SSL_CIPHER_get_version(ciph),
1022 SSL_CIPHER_get_name(ciph));
1023 ret=0;
1024 err:
1025 /* We have to set the BIO's to NULL otherwise they will be
1026 * Free()ed twice. Once when th s_ssl is SSL_free()ed and
1027 * again when c_ssl is SSL_free()ed.
1028 * This is a hack required because s_ssl and c_ssl are sharing the same
1029 * BIO structure and SSL_set_bio() and SSL_free() automatically
1030 * BIO_free non NULL entries.
1031 * You should not normally do this or be required to do this */
1032 if (s_ssl != NULL)
1033 {
1034 s_ssl->rbio=NULL;
1035 s_ssl->wbio=NULL;
1036 }
1037 if (c_ssl != NULL)
1038 {
1039 c_ssl->rbio=NULL;
1040 c_ssl->wbio=NULL;
1041 }
1042
1043 if (c_to_s != NULL) BIO_free(c_to_s);
1044 if (s_to_c != NULL) BIO_free(s_to_c);
1045 if (c_bio != NULL) BIO_free_all(c_bio);
1046 if (s_bio != NULL) BIO_free_all(s_bio);
1047 return(ret);
1048 }
1049
1050 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
1051 {
1052 char *s,buf[256];
1053
1054 s=X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),buf,256);
1055 if (s != NULL)
1056 {
1057 if (ok)
1058 fprintf(stderr,"depth=%d %s\n",ctx->error_depth,buf);
1059 else
1060 fprintf(stderr,"depth=%d error=%d %s\n",
1061 ctx->error_depth,ctx->error,buf);
1062 }
1063
1064 if (ok == 0)
1065 {
1066 switch (ctx->error)
1067 {
1068 case X509_V_ERR_CERT_NOT_YET_VALID:
1069 case X509_V_ERR_CERT_HAS_EXPIRED:
1070 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
1071 ok=1;
1072 }
1073 }
1074
1075 return(ok);
1076 }
1077
1078 #ifndef NO_DH
1079 static unsigned char dh512_p[]={
1080 0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
1081 0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
1082 0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
1083 0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
1084 0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
1085 0x47,0x74,0xE8,0x33,
1086 };
1087 static unsigned char dh512_g[]={
1088 0x02,
1089 };
1090
1091 static DH *get_dh512(void)
1092 {
1093 DH *dh=NULL;
1094
1095 if ((dh=DH_new()) == NULL) return(NULL);
1096 dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
1097 dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
1098 if ((dh->p == NULL) || (dh->g == NULL))
1099 return(NULL);
1100 return(dh);
1101 }
1102 #endif
1103
1104 #ifndef NO_RSA
1105 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1106 {
1107 static RSA *rsa_tmp=NULL;
1108
1109 if (rsa_tmp == NULL)
1110 {
1111 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1112 (void)BIO_flush(bio_err);
1113 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1114 BIO_printf(bio_err,"\n");
1115 (void)BIO_flush(bio_err);
1116 }
1117 return(rsa_tmp);
1118 }
1119 #endif
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