Security fixes brought forward from 0.9.7.
[openssl.git] / ssl / ssltest.c
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  * Copyright (c) 1998-2000 The OpenSSL Project.  All rights reserved.
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  */
111 /* ====================================================================
112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113  * ECC cipher suite support in OpenSSL originally developed by 
114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115  */
116
117 #define _XOPEN_SOURCE 600       /* Or gethostname won't be declared properly
118                                    on Linux and GNU platforms. */
119 #define _XOPEN_SOURCE_EXTENDED  1 /* Or gethostname won't be declared properly
120                                    on Compaq platforms (at least with DEC C).
121                                 */
122
123 #include <assert.h>
124 #include <errno.h>
125 #include <limits.h>
126 #include <stdio.h>
127 #include <stdlib.h>
128 #include <string.h>
129 #include <time.h>
130
131 #include "e_os.h"
132
133 #include <openssl/bio.h>
134 #include <openssl/crypto.h>
135 #include <openssl/evp.h>
136 #include <openssl/x509.h>
137 #include <openssl/ssl.h>
138 #include <openssl/engine.h>
139 #include <openssl/err.h>
140 #include <openssl/rand.h>
141 #ifdef OPENSSL_SYS_WINDOWS
142 #include <winsock.h>
143 #include "../crypto/bio/bss_file.c"
144 #else
145 #include OPENSSL_UNISTD
146 #endif
147
148 #ifdef OPENSSL_SYS_VMS
149 #  define TEST_SERVER_CERT "SYS$DISK:[-.APPS]SERVER.PEM"
150 #  define TEST_CLIENT_CERT "SYS$DISK:[-.APPS]CLIENT.PEM"
151 #else
152 #  define TEST_SERVER_CERT "../apps/server.pem"
153 #  define TEST_CLIENT_CERT "../apps/client.pem"
154 #endif
155
156 /* There is really no standard for this, so let's assign some tentative
157    numbers.  In any case, these numbers are only for this test */
158 #define COMP_RLE        1
159 #define COMP_ZLIB       2
160
161 static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
162 #ifndef OPENSSL_NO_RSA
163 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export,int keylength);
164 static void free_tmp_rsa(void);
165 #endif
166 static int MS_CALLBACK app_verify_callback(X509_STORE_CTX *ctx, void *arg);
167 #define APP_CALLBACK "Test Callback Argument"
168 static char *app_verify_arg = APP_CALLBACK;
169
170 #ifndef OPENSSL_NO_DH
171 static DH *get_dh512(void);
172 static DH *get_dh1024(void);
173 static DH *get_dh1024dsa(void);
174 #endif
175
176 static BIO *bio_err=NULL;
177 static BIO *bio_stdout=NULL;
178
179 static char *cipher=NULL;
180 static int verbose=0;
181 static int debug=0;
182 #if 0
183 /* Not used yet. */
184 #ifdef FIONBIO
185 static int s_nbio=0;
186 #endif
187 #endif
188
189 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
190
191 int doit_biopair(SSL *s_ssl,SSL *c_ssl,long bytes,clock_t *s_time,clock_t *c_time);
192 int doit(SSL *s_ssl,SSL *c_ssl,long bytes);
193 static void sv_usage(void)
194         {
195         fprintf(stderr,"usage: ssltest [args ...]\n");
196         fprintf(stderr,"\n");
197         fprintf(stderr," -server_auth  - check server certificate\n");
198         fprintf(stderr," -client_auth  - do client authentication\n");
199         fprintf(stderr," -v            - more output\n");
200         fprintf(stderr," -d            - debug output\n");
201         fprintf(stderr," -reuse        - use session-id reuse\n");
202         fprintf(stderr," -num <val>    - number of connections to perform\n");
203         fprintf(stderr," -bytes <val>  - number of bytes to swap between client/server\n");
204 #ifndef OPENSSL_NO_DH
205         fprintf(stderr," -dhe1024      - use 1024 bit key (safe prime) for DHE\n");
206         fprintf(stderr," -dhe1024dsa   - use 1024 bit key (with 160-bit subprime) for DHE\n");
207         fprintf(stderr," -no_dhe       - disable DHE\n");
208 #endif
209 #ifndef OPENSSL_NO_ECDH
210         fprintf(stderr," -no_ecdhe     - disable ECDHE\n");
211 #endif
212 #ifndef OPENSSL_NO_SSL2
213         fprintf(stderr," -ssl2         - use SSLv2\n");
214 #endif
215 #ifndef OPENSSL_NO_SSL3
216         fprintf(stderr," -ssl3         - use SSLv3\n");
217 #endif
218 #ifndef OPENSSL_NO_TLS1
219         fprintf(stderr," -tls1         - use TLSv1\n");
220 #endif
221         fprintf(stderr," -CApath arg   - PEM format directory of CA's\n");
222         fprintf(stderr," -CAfile arg   - PEM format file of CA's\n");
223         fprintf(stderr," -cert arg     - Server certificate file\n");
224         fprintf(stderr," -key arg      - Server key file (default: same as -cert)\n");
225         fprintf(stderr," -c_cert arg   - Client certificate file\n");
226         fprintf(stderr," -c_key arg    - Client key file (default: same as -c_cert)\n");
227         fprintf(stderr," -cipher arg   - The cipher list\n");
228         fprintf(stderr," -bio_pair     - Use BIO pairs\n");
229         fprintf(stderr," -f            - Test even cases that can't work\n");
230         fprintf(stderr," -time         - measure processor time used by client and server\n");
231         fprintf(stderr," -zlib         - use zlib compression\n");
232         fprintf(stderr," -rle          - use rle compression\n");
233 #ifndef OPENSSL_NO_ECDH
234         fprintf(stderr," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
235                        "                 Use \"openssl ecparam -list_curves\" for all names\n"  \
236                        "                 (default is sect163r2).\n");
237 #endif
238         }
239
240 static void print_details(SSL *c_ssl, const char *prefix)
241         {
242         SSL_CIPHER *ciph;
243         X509 *cert;
244                 
245         ciph=SSL_get_current_cipher(c_ssl);
246         BIO_printf(bio_stdout,"%s%s, cipher %s %s",
247                 prefix,
248                 SSL_get_version(c_ssl),
249                 SSL_CIPHER_get_version(ciph),
250                 SSL_CIPHER_get_name(ciph));
251         cert=SSL_get_peer_certificate(c_ssl);
252         if (cert != NULL)
253                 {
254                 EVP_PKEY *pkey = X509_get_pubkey(cert);
255                 if (pkey != NULL)
256                         {
257                         if (0) 
258                                 ;
259 #ifndef OPENSSL_NO_RSA
260                         else if (pkey->type == EVP_PKEY_RSA && pkey->pkey.rsa != NULL
261                                 && pkey->pkey.rsa->n != NULL)
262                                 {
263                                 BIO_printf(bio_stdout, ", %d bit RSA",
264                                         BN_num_bits(pkey->pkey.rsa->n));
265                                 }
266 #endif
267 #ifndef OPENSSL_NO_DSA
268                         else if (pkey->type == EVP_PKEY_DSA && pkey->pkey.dsa != NULL
269                                 && pkey->pkey.dsa->p != NULL)
270                                 {
271                                 BIO_printf(bio_stdout, ", %d bit DSA",
272                                         BN_num_bits(pkey->pkey.dsa->p));
273                                 }
274 #endif
275                         EVP_PKEY_free(pkey);
276                         }
277                 X509_free(cert);
278                 }
279         /* The SSL API does not allow us to look at temporary RSA/DH keys,
280          * otherwise we should print their lengths too */
281         BIO_printf(bio_stdout,"\n");
282         }
283
284 static void lock_dbg_cb(int mode, int type, const char *file, int line)
285         {
286         static int modes[CRYPTO_NUM_LOCKS]; /* = {0, 0, ... } */
287         const char *errstr = NULL;
288         int rw;
289         
290         rw = mode & (CRYPTO_READ|CRYPTO_WRITE);
291         if (!((rw == CRYPTO_READ) || (rw == CRYPTO_WRITE)))
292                 {
293                 errstr = "invalid mode";
294                 goto err;
295                 }
296
297         if (type < 0 || type > CRYPTO_NUM_LOCKS)
298                 {
299                 errstr = "type out of bounds";
300                 goto err;
301                 }
302
303         if (mode & CRYPTO_LOCK)
304                 {
305                 if (modes[type])
306                         {
307                         errstr = "already locked";
308                         /* must not happen in a single-threaded program
309                          * (would deadlock) */
310                         goto err;
311                         }
312
313                 modes[type] = rw;
314                 }
315         else if (mode & CRYPTO_UNLOCK)
316                 {
317                 if (!modes[type])
318                         {
319                         errstr = "not locked";
320                         goto err;
321                         }
322                 
323                 if (modes[type] != rw)
324                         {
325                         errstr = (rw == CRYPTO_READ) ?
326                                 "CRYPTO_r_unlock on write lock" :
327                                 "CRYPTO_w_unlock on read lock";
328                         }
329
330                 modes[type] = 0;
331                 }
332         else
333                 {
334                 errstr = "invalid mode";
335                 goto err;
336                 }
337
338  err:
339         if (errstr)
340                 {
341                 /* we cannot use bio_err here */
342                 fprintf(stderr, "openssl (lock_dbg_cb): %s (mode=%d, type=%d) at %s:%d\n",
343                         errstr, mode, type, file, line);
344                 }
345         }
346
347 int main(int argc, char *argv[])
348         {
349         char *CApath=NULL,*CAfile=NULL;
350         int badop=0;
351         int bio_pair=0;
352         int force=0;
353         int tls1=0,ssl2=0,ssl3=0,ret=1;
354         int client_auth=0;
355         int server_auth=0,i;
356         int app_verify=0;
357         char *server_cert=TEST_SERVER_CERT;
358         char *server_key=NULL;
359         char *client_cert=TEST_CLIENT_CERT;
360         char *client_key=NULL;
361         char *named_curve = NULL;
362         SSL_CTX *s_ctx=NULL;
363         SSL_CTX *c_ctx=NULL;
364         SSL_METHOD *meth=NULL;
365         SSL *c_ssl,*s_ssl;
366         int number=1,reuse=0;
367         long bytes=1L;
368 #ifndef OPENSSL_NO_DH
369         DH *dh;
370         int dhe1024 = 0, dhe1024dsa = 0;
371 #endif
372 #ifndef OPENSSL_NO_ECDH
373         EC_KEY *ecdh = NULL;
374 #endif
375         int no_dhe = 0;
376         int no_ecdhe = 0;
377         int print_time = 0;
378         clock_t s_time = 0, c_time = 0;
379         int comp = 0;
380         COMP_METHOD *cm = NULL;
381
382         verbose = 0;
383         debug = 0;
384         cipher = 0;
385         
386         CRYPTO_set_locking_callback(lock_dbg_cb);
387
388         /* enable memory leak checking unless explicitly disabled */
389         if (!((getenv("OPENSSL_DEBUG_MEMORY") != NULL) && (0 == strcmp(getenv("OPENSSL_DEBUG_MEMORY"), "off"))))
390                 {
391                 CRYPTO_malloc_debug_init();
392                 CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
393                 }
394         else
395                 {
396                 /* OPENSSL_DEBUG_MEMORY=off */
397                 CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
398                 }
399         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
400
401         RAND_seed(rnd_seed, sizeof rnd_seed);
402
403         bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
404         bio_stdout=BIO_new_fp(stdout,BIO_NOCLOSE);
405
406         argc--;
407         argv++;
408
409         while (argc >= 1)
410                 {
411                 if      (strcmp(*argv,"-server_auth") == 0)
412                         server_auth=1;
413                 else if (strcmp(*argv,"-client_auth") == 0)
414                         client_auth=1;
415                 else if (strcmp(*argv,"-v") == 0)
416                         verbose=1;
417                 else if (strcmp(*argv,"-d") == 0)
418                         debug=1;
419                 else if (strcmp(*argv,"-reuse") == 0)
420                         reuse=1;
421                 else if (strcmp(*argv,"-dhe1024") == 0)
422                         {
423 #ifndef OPENSSL_NO_DH
424                         dhe1024=1;
425 #else
426                         fprintf(stderr,"ignoring -dhe1024, since I'm compiled without DH\n");
427 #endif
428                         }
429                 else if (strcmp(*argv,"-dhe1024dsa") == 0)
430                         {
431 #ifndef OPENSSL_NO_DH
432                         dhe1024dsa=1;
433 #else
434                         fprintf(stderr,"ignoring -dhe1024, since I'm compiled without DH\n");
435 #endif
436                         }
437                 else if (strcmp(*argv,"-no_dhe") == 0)
438                         no_dhe=1;
439                 else if (strcmp(*argv,"-no_ecdhe") == 0)
440                         no_ecdhe=1;
441                 else if (strcmp(*argv,"-ssl2") == 0)
442                         ssl2=1;
443                 else if (strcmp(*argv,"-tls1") == 0)
444                         tls1=1;
445                 else if (strcmp(*argv,"-ssl3") == 0)
446                         ssl3=1;
447                 else if (strncmp(*argv,"-num",4) == 0)
448                         {
449                         if (--argc < 1) goto bad;
450                         number= atoi(*(++argv));
451                         if (number == 0) number=1;
452                         }
453                 else if (strcmp(*argv,"-bytes") == 0)
454                         {
455                         if (--argc < 1) goto bad;
456                         bytes= atol(*(++argv));
457                         if (bytes == 0L) bytes=1L;
458                         i=strlen(argv[0]);
459                         if (argv[0][i-1] == 'k') bytes*=1024L;
460                         if (argv[0][i-1] == 'm') bytes*=1024L*1024L;
461                         }
462                 else if (strcmp(*argv,"-cert") == 0)
463                         {
464                         if (--argc < 1) goto bad;
465                         server_cert= *(++argv);
466                         }
467                 else if (strcmp(*argv,"-s_cert") == 0)
468                         {
469                         if (--argc < 1) goto bad;
470                         server_cert= *(++argv);
471                         }
472                 else if (strcmp(*argv,"-key") == 0)
473                         {
474                         if (--argc < 1) goto bad;
475                         server_key= *(++argv);
476                         }
477                 else if (strcmp(*argv,"-s_key") == 0)
478                         {
479                         if (--argc < 1) goto bad;
480                         server_key= *(++argv);
481                         }
482                 else if (strcmp(*argv,"-c_cert") == 0)
483                         {
484                         if (--argc < 1) goto bad;
485                         client_cert= *(++argv);
486                         }
487                 else if (strcmp(*argv,"-c_key") == 0)
488                         {
489                         if (--argc < 1) goto bad;
490                         client_key= *(++argv);
491                         }
492                 else if (strcmp(*argv,"-cipher") == 0)
493                         {
494                         if (--argc < 1) goto bad;
495                         cipher= *(++argv);
496                         }
497                 else if (strcmp(*argv,"-CApath") == 0)
498                         {
499                         if (--argc < 1) goto bad;
500                         CApath= *(++argv);
501                         }
502                 else if (strcmp(*argv,"-CAfile") == 0)
503                         {
504                         if (--argc < 1) goto bad;
505                         CAfile= *(++argv);
506                         }
507                 else if (strcmp(*argv,"-bio_pair") == 0)
508                         {
509                         bio_pair = 1;
510                         }
511                 else if (strcmp(*argv,"-f") == 0)
512                         {
513                         force = 1;
514                         }
515                 else if (strcmp(*argv,"-time") == 0)
516                         {
517                         print_time = 1;
518                         }
519                 else if (strcmp(*argv,"-zlib") == 0)
520                         {
521                         comp = COMP_ZLIB;
522                         }
523                 else if (strcmp(*argv,"-rle") == 0)
524                         {
525                         comp = COMP_RLE;
526                         }
527                 else if (strcmp(*argv,"-named_curve") == 0)
528                         {
529                         if (--argc < 1) goto bad;
530 #ifndef OPENSSL_NO_ECDH         
531                         named_curve = *(++argv);
532 #else
533                         fprintf(stderr,"ignoring -named_curve, since I'm compiled without ECDH\n");
534                         ++argv;
535 #endif
536                         }
537                 else if (strcmp(*argv,"-app_verify") == 0)
538                         {
539                         app_verify = 1;
540                         }
541                 else
542                         {
543                         fprintf(stderr,"unknown option %s\n",*argv);
544                         badop=1;
545                         break;
546                         }
547                 argc--;
548                 argv++;
549                 }
550         if (badop)
551                 {
552 bad:
553                 sv_usage();
554                 goto end;
555                 }
556
557         if (!ssl2 && !ssl3 && !tls1 && number > 1 && !reuse && !force)
558                 {
559                 fprintf(stderr, "This case cannot work.  Use -f to perform "
560                         "the test anyway (and\n-d to see what happens), "
561                         "or add one of -ssl2, -ssl3, -tls1, -reuse\n"
562                         "to avoid protocol mismatch.\n");
563                 exit(1);
564                 }
565
566         if (print_time)
567                 {
568                 if (!bio_pair)
569                         {
570                         fprintf(stderr, "Using BIO pair (-bio_pair)\n");
571                         bio_pair = 1;
572                         }
573                 if (number < 50 && !force)
574                         fprintf(stderr, "Warning: For accurate timings, use more connections (e.g. -num 1000)\n");
575                 }
576
577 /*      if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */
578
579         SSL_library_init();
580         SSL_load_error_strings();
581
582         if (comp == COMP_ZLIB) cm = COMP_zlib();
583         if (comp == COMP_RLE) cm = COMP_rle();
584         if (cm != NULL)
585                 {
586                 if (cm->type != NID_undef)
587                         SSL_COMP_add_compression_method(comp, cm);
588                 else
589                         {
590                         fprintf(stderr,
591                                 "Warning: %s compression not supported\n",
592                                 (comp == COMP_RLE ? "rle" :
593                                         (comp == COMP_ZLIB ? "zlib" :
594                                                 "unknown")));
595                         ERR_print_errors_fp(stderr);
596                         }
597                 }
598
599 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
600         if (ssl2)
601                 meth=SSLv2_method();
602         else 
603         if (tls1)
604                 meth=TLSv1_method();
605         else
606         if (ssl3)
607                 meth=SSLv3_method();
608         else
609                 meth=SSLv23_method();
610 #else
611 #ifdef OPENSSL_NO_SSL2
612         meth=SSLv3_method();
613 #else
614         meth=SSLv2_method();
615 #endif
616 #endif
617
618         c_ctx=SSL_CTX_new(meth);
619         s_ctx=SSL_CTX_new(meth);
620         if ((c_ctx == NULL) || (s_ctx == NULL))
621                 {
622                 ERR_print_errors(bio_err);
623                 goto end;
624                 }
625
626         if (cipher != NULL)
627                 {
628                 SSL_CTX_set_cipher_list(c_ctx,cipher);
629                 SSL_CTX_set_cipher_list(s_ctx,cipher);
630                 }
631
632 #ifndef OPENSSL_NO_DH
633         if (!no_dhe)
634                 {
635                 if (dhe1024dsa)
636                         {
637                         /* use SSL_OP_SINGLE_DH_USE to avoid small subgroup attacks */
638                         SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
639                         dh=get_dh1024dsa();
640                         }
641                 else if (dhe1024)
642                         dh=get_dh1024();
643                 else
644                         dh=get_dh512();
645                 SSL_CTX_set_tmp_dh(s_ctx,dh);
646                 DH_free(dh);
647                 }
648 #else
649         (void)no_dhe;
650 #endif
651
652 #ifndef OPENSSL_NO_ECDH
653         if (!no_ecdhe)
654                 {
655                 ecdh = EC_KEY_new();
656                 if (ecdh != NULL)
657                         {
658                         if (named_curve)
659                                 {
660                                 int nid = OBJ_sn2nid(named_curve);
661
662                                 if (nid == 0)
663                                         {
664                                         BIO_printf(bio_err, "unknown curve name (%s)\n", named_curve);
665                                         EC_KEY_free(ecdh);
666                                         goto end;
667                                         }
668
669                                 ecdh->group = EC_GROUP_new_by_nid(nid);
670                                 if (ecdh->group == NULL)
671                                         {
672                                         BIO_printf(bio_err, "unable to create curve (%s)\n", named_curve);
673                                         EC_KEY_free(ecdh);
674                                         goto end;
675                                         }
676                                 }
677                         
678                         if (ecdh->group == NULL)
679                                 ecdh->group=EC_GROUP_new_by_nid(NID_sect163r2);
680
681                         SSL_CTX_set_tmp_ecdh(s_ctx, ecdh);
682                         SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_ECDH_USE);
683                         EC_KEY_free(ecdh);
684                         }
685                 }
686 #else
687         (void)no_ecdhe;
688 #endif
689
690 #ifndef OPENSSL_NO_RSA
691         SSL_CTX_set_tmp_rsa_callback(s_ctx,tmp_rsa_cb);
692 #endif
693
694         if (!SSL_CTX_use_certificate_file(s_ctx,server_cert,SSL_FILETYPE_PEM))
695                 {
696                 ERR_print_errors(bio_err);
697                 }
698         else if (!SSL_CTX_use_PrivateKey_file(s_ctx,
699                 (server_key?server_key:server_cert), SSL_FILETYPE_PEM))
700                 {
701                 ERR_print_errors(bio_err);
702                 goto end;
703                 }
704
705         if (client_auth)
706                 {
707                 SSL_CTX_use_certificate_file(c_ctx,client_cert,
708                         SSL_FILETYPE_PEM);
709                 SSL_CTX_use_PrivateKey_file(c_ctx,
710                         (client_key?client_key:client_cert),
711                         SSL_FILETYPE_PEM);
712                 }
713
714         if (    (!SSL_CTX_load_verify_locations(s_ctx,CAfile,CApath)) ||
715                 (!SSL_CTX_set_default_verify_paths(s_ctx)) ||
716                 (!SSL_CTX_load_verify_locations(c_ctx,CAfile,CApath)) ||
717                 (!SSL_CTX_set_default_verify_paths(c_ctx)))
718                 {
719                 /* fprintf(stderr,"SSL_load_verify_locations\n"); */
720                 ERR_print_errors(bio_err);
721                 /* goto end; */
722                 }
723
724         if (client_auth)
725                 {
726                 BIO_printf(bio_err,"client authentication\n");
727                 SSL_CTX_set_verify(s_ctx,
728                         SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
729                         verify_callback);
730                 if (app_verify) 
731                         {
732                         SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback, app_verify_arg);
733                         }
734                 }
735         if (server_auth)
736                 {
737                 BIO_printf(bio_err,"server authentication\n");
738                 SSL_CTX_set_verify(c_ctx,SSL_VERIFY_PEER,
739                         verify_callback);
740                 if (app_verify) 
741                         {
742                         SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback, app_verify_arg);
743                         }
744                 }
745         
746         {
747                 int session_id_context = 0;
748                 SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context, sizeof session_id_context);
749         }
750
751         c_ssl=SSL_new(c_ctx);
752         s_ssl=SSL_new(s_ctx);
753
754 #ifndef OPENSSL_NO_KRB5
755         if (c_ssl  &&  c_ssl->kssl_ctx)
756                 {
757                 char    localhost[MAXHOSTNAMELEN+2];
758
759                 if (gethostname(localhost, sizeof localhost-1) == 0)
760                         {
761                         localhost[sizeof localhost-1]='\0';
762                         if(strlen(localhost) == sizeof localhost-1)
763                                 {
764                                 BIO_printf(bio_err,"localhost name too long\n");
765                                 got end;
766                                 }
767                         kssl_ctx_setstring(c_ssl->kssl_ctx, KSSL_SERVER,
768                                 localhost);
769                         }
770                 }
771 #endif    /* OPENSSL_NO_KRB5  */
772
773         for (i=0; i<number; i++)
774                 {
775                 if (!reuse) SSL_set_session(c_ssl,NULL);
776                 if (bio_pair)
777                         ret=doit_biopair(s_ssl,c_ssl,bytes,&s_time,&c_time);
778                 else
779                         ret=doit(s_ssl,c_ssl,bytes);
780                 }
781
782         if (!verbose)
783                 {
784                 print_details(c_ssl, "");
785                 }
786         if ((number > 1) || (bytes > 1L))
787                 BIO_printf(bio_stdout, "%d handshakes of %ld bytes done\n",number,bytes);
788         if (print_time)
789                 {
790 #ifdef CLOCKS_PER_SEC
791                 /* "To determine the time in seconds, the value returned
792                  * by the clock function should be divided by the value
793                  * of the macro CLOCKS_PER_SEC."
794                  *                                       -- ISO/IEC 9899 */
795                 BIO_printf(bio_stdout, "Approximate total server time: %6.2f s\n"
796                         "Approximate total client time: %6.2f s\n",
797                         (double)s_time/CLOCKS_PER_SEC,
798                         (double)c_time/CLOCKS_PER_SEC);
799 #else
800                 /* "`CLOCKS_PER_SEC' undeclared (first use this function)"
801                  *                            -- cc on NeXTstep/OpenStep */
802                 BIO_printf(bio_stdout,
803                         "Approximate total server time: %6.2f units\n"
804                         "Approximate total client time: %6.2f units\n",
805                         (double)s_time,
806                         (double)c_time);
807 #endif
808                 }
809
810         SSL_free(s_ssl);
811         SSL_free(c_ssl);
812
813 end:
814         if (s_ctx != NULL) SSL_CTX_free(s_ctx);
815         if (c_ctx != NULL) SSL_CTX_free(c_ctx);
816
817         if (bio_stdout != NULL) BIO_free(bio_stdout);
818
819 #ifndef OPENSSL_NO_RSA
820         free_tmp_rsa();
821 #endif
822         ENGINE_cleanup();
823         CRYPTO_cleanup_all_ex_data();
824         ERR_free_strings();
825         ERR_remove_state(0);
826         EVP_cleanup();
827         CRYPTO_mem_leaks(bio_err);
828         if (bio_err != NULL) BIO_free(bio_err);
829         EXIT(ret);
830         }
831
832 int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count,
833         clock_t *s_time, clock_t *c_time)
834         {
835         long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
836         BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
837         BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL;
838         int ret = 1;
839         
840         size_t bufsiz = 256; /* small buffer for testing */
841
842         if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz))
843                 goto err;
844         if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz))
845                 goto err;
846         
847         s_ssl_bio = BIO_new(BIO_f_ssl());
848         if (!s_ssl_bio)
849                 goto err;
850
851         c_ssl_bio = BIO_new(BIO_f_ssl());
852         if (!c_ssl_bio)
853                 goto err;
854
855         SSL_set_connect_state(c_ssl);
856         SSL_set_bio(c_ssl, client, client);
857         (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
858
859         SSL_set_accept_state(s_ssl);
860         SSL_set_bio(s_ssl, server, server);
861         (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
862
863         do
864                 {
865                 /* c_ssl_bio:          SSL filter BIO
866                  *
867                  * client:             pseudo-I/O for SSL library
868                  *
869                  * client_io:          client's SSL communication; usually to be
870                  *                     relayed over some I/O facility, but in this
871                  *                     test program, we're the server, too:
872                  *
873                  * server_io:          server's SSL communication
874                  *
875                  * server:             pseudo-I/O for SSL library
876                  *
877                  * s_ssl_bio:          SSL filter BIO
878                  *
879                  * The client and the server each employ a "BIO pair":
880                  * client + client_io, server + server_io.
881                  * BIO pairs are symmetric.  A BIO pair behaves similar
882                  * to a non-blocking socketpair (but both endpoints must
883                  * be handled by the same thread).
884                  * [Here we could connect client and server to the ends
885                  * of a single BIO pair, but then this code would be less
886                  * suitable as an example for BIO pairs in general.]
887                  *
888                  * Useful functions for querying the state of BIO pair endpoints:
889                  *
890                  * BIO_ctrl_pending(bio)              number of bytes we can read now
891                  * BIO_ctrl_get_read_request(bio)     number of bytes needed to fulfil
892                  *                                      other side's read attempt
893                  * BIO_ctrl_get_write_guarantee(bio)   number of bytes we can write now
894                  *
895                  * ..._read_request is never more than ..._write_guarantee;
896                  * it depends on the application which one you should use.
897                  */
898
899                 /* We have non-blocking behaviour throughout this test program, but
900                  * can be sure that there is *some* progress in each iteration; so
901                  * we don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE
902                  * -- we just try everything in each iteration
903                  */
904
905                         {
906                         /* CLIENT */
907                 
908                         MS_STATIC char cbuf[1024*8];
909                         int i, r;
910                         clock_t c_clock = clock();
911
912                         memset(cbuf, 0, sizeof(cbuf));
913
914                         if (debug)
915                                 if (SSL_in_init(c_ssl))
916                                         printf("client waiting in SSL_connect - %s\n",
917                                                 SSL_state_string_long(c_ssl));
918
919                         if (cw_num > 0)
920                                 {
921                                 /* Write to server. */
922                                 
923                                 if (cw_num > (long)sizeof cbuf)
924                                         i = sizeof cbuf;
925                                 else
926                                         i = (int)cw_num;
927                                 r = BIO_write(c_ssl_bio, cbuf, i);
928                                 if (r < 0)
929                                         {
930                                         if (!BIO_should_retry(c_ssl_bio))
931                                                 {
932                                                 fprintf(stderr,"ERROR in CLIENT\n");
933                                                 goto err;
934                                                 }
935                                         /* BIO_should_retry(...) can just be ignored here.
936                                          * The library expects us to call BIO_write with
937                                          * the same arguments again, and that's what we will
938                                          * do in the next iteration. */
939                                         }
940                                 else if (r == 0)
941                                         {
942                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
943                                         goto err;
944                                         }
945                                 else
946                                         {
947                                         if (debug)
948                                                 printf("client wrote %d\n", r);
949                                         cw_num -= r;                            
950                                         }
951                                 }
952
953                         if (cr_num > 0)
954                                 {
955                                 /* Read from server. */
956
957                                 r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
958                                 if (r < 0)
959                                         {
960                                         if (!BIO_should_retry(c_ssl_bio))
961                                                 {
962                                                 fprintf(stderr,"ERROR in CLIENT\n");
963                                                 goto err;
964                                                 }
965                                         /* Again, "BIO_should_retry" can be ignored. */
966                                         }
967                                 else if (r == 0)
968                                         {
969                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
970                                         goto err;
971                                         }
972                                 else
973                                         {
974                                         if (debug)
975                                                 printf("client read %d\n", r);
976                                         cr_num -= r;
977                                         }
978                                 }
979
980                         /* c_time and s_time increments will typically be very small
981                          * (depending on machine speed and clock tick intervals),
982                          * but sampling over a large number of connections should
983                          * result in fairly accurate figures.  We cannot guarantee
984                          * a lot, however -- if each connection lasts for exactly
985                          * one clock tick, it will be counted only for the client
986                          * or only for the server or even not at all.
987                          */
988                         *c_time += (clock() - c_clock);
989                         }
990
991                         {
992                         /* SERVER */
993                 
994                         MS_STATIC char sbuf[1024*8];
995                         int i, r;
996                         clock_t s_clock = clock();
997
998                         memset(sbuf, 0, sizeof(sbuf));
999
1000                         if (debug)
1001                                 if (SSL_in_init(s_ssl))
1002                                         printf("server waiting in SSL_accept - %s\n",
1003                                                 SSL_state_string_long(s_ssl));
1004
1005                         if (sw_num > 0)
1006                                 {
1007                                 /* Write to client. */
1008                                 
1009                                 if (sw_num > (long)sizeof sbuf)
1010                                         i = sizeof sbuf;
1011                                 else
1012                                         i = (int)sw_num;
1013                                 r = BIO_write(s_ssl_bio, sbuf, i);
1014                                 if (r < 0)
1015                                         {
1016                                         if (!BIO_should_retry(s_ssl_bio))
1017                                                 {
1018                                                 fprintf(stderr,"ERROR in SERVER\n");
1019                                                 goto err;
1020                                                 }
1021                                         /* Ignore "BIO_should_retry". */
1022                                         }
1023                                 else if (r == 0)
1024                                         {
1025                                         fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
1026                                         goto err;
1027                                         }
1028                                 else
1029                                         {
1030                                         if (debug)
1031                                                 printf("server wrote %d\n", r);
1032                                         sw_num -= r;                            
1033                                         }
1034                                 }
1035
1036                         if (sr_num > 0)
1037                                 {
1038                                 /* Read from client. */
1039
1040                                 r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
1041                                 if (r < 0)
1042                                         {
1043                                         if (!BIO_should_retry(s_ssl_bio))
1044                                                 {
1045                                                 fprintf(stderr,"ERROR in SERVER\n");
1046                                                 goto err;
1047                                                 }
1048                                         /* blah, blah */
1049                                         }
1050                                 else if (r == 0)
1051                                         {
1052                                         fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
1053                                         goto err;
1054                                         }
1055                                 else
1056                                         {
1057                                         if (debug)
1058                                                 printf("server read %d\n", r);
1059                                         sr_num -= r;
1060                                         }
1061                                 }
1062
1063                         *s_time += (clock() - s_clock);
1064                         }
1065                         
1066                         {
1067                         /* "I/O" BETWEEN CLIENT AND SERVER. */
1068
1069                         size_t r1, r2;
1070                         BIO *io1 = server_io, *io2 = client_io;
1071                         /* we use the non-copying interface for io1
1072                          * and the standard BIO_write/BIO_read interface for io2
1073                          */
1074                         
1075                         static int prev_progress = 1;
1076                         int progress = 0;
1077                         
1078                         /* io1 to io2 */
1079                         do
1080                                 {
1081                                 size_t num;
1082                                 int r;
1083
1084                                 r1 = BIO_ctrl_pending(io1);
1085                                 r2 = BIO_ctrl_get_write_guarantee(io2);
1086
1087                                 num = r1;
1088                                 if (r2 < num)
1089                                         num = r2;
1090                                 if (num)
1091                                         {
1092                                         char *dataptr;
1093
1094                                         if (INT_MAX < num) /* yeah, right */
1095                                                 num = INT_MAX;
1096                                         
1097                                         r = BIO_nread(io1, &dataptr, (int)num);
1098                                         assert(r > 0);
1099                                         assert(r <= (int)num);
1100                                         /* possibly r < num (non-contiguous data) */
1101                                         num = r;
1102                                         r = BIO_write(io2, dataptr, (int)num);
1103                                         if (r != (int)num) /* can't happen */
1104                                                 {
1105                                                 fprintf(stderr, "ERROR: BIO_write could not write "
1106                                                         "BIO_ctrl_get_write_guarantee() bytes");
1107                                                 goto err;
1108                                                 }
1109                                         progress = 1;
1110
1111                                         if (debug)
1112                                                 printf((io1 == client_io) ?
1113                                                         "C->S relaying: %d bytes\n" :
1114                                                         "S->C relaying: %d bytes\n",
1115                                                         (int)num);
1116                                         }
1117                                 }
1118                         while (r1 && r2);
1119
1120                         /* io2 to io1 */
1121                         {
1122                                 size_t num;
1123                                 int r;
1124
1125                                 r1 = BIO_ctrl_pending(io2);
1126                                 r2 = BIO_ctrl_get_read_request(io1);
1127                                 /* here we could use ..._get_write_guarantee instead of
1128                                  * ..._get_read_request, but by using the latter
1129                                  * we test restartability of the SSL implementation
1130                                  * more thoroughly */
1131                                 num = r1;
1132                                 if (r2 < num)
1133                                         num = r2;
1134                                 if (num)
1135                                         {
1136                                         char *dataptr;
1137                                         
1138                                         if (INT_MAX < num)
1139                                                 num = INT_MAX;
1140
1141                                         if (num > 1)
1142                                                 --num; /* test restartability even more thoroughly */
1143                                         
1144                                         r = BIO_nwrite0(io1, &dataptr);
1145                                         assert(r > 0);
1146                                         if (r < (int)num)
1147                                                 num = r;
1148                                         r = BIO_read(io2, dataptr, (int)num);
1149                                         if (r != (int)num) /* can't happen */
1150                                                 {
1151                                                 fprintf(stderr, "ERROR: BIO_read could not read "
1152                                                         "BIO_ctrl_pending() bytes");
1153                                                 goto err;
1154                                                 }
1155                                         progress = 1;
1156                                         r = BIO_nwrite(io1, &dataptr, (int)num);
1157                                         if (r != (int)num) /* can't happen */
1158                                                 {
1159                                                 fprintf(stderr, "ERROR: BIO_nwrite() did not accept "
1160                                                         "BIO_nwrite0() bytes");
1161                                                 goto err;
1162                                                 }
1163                                         
1164                                         if (debug)
1165                                                 printf((io2 == client_io) ?
1166                                                         "C->S relaying: %d bytes\n" :
1167                                                         "S->C relaying: %d bytes\n",
1168                                                         (int)num);
1169                                         }
1170                         } /* no loop, BIO_ctrl_get_read_request now returns 0 anyway */
1171
1172                         if (!progress && !prev_progress)
1173                                 if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0)
1174                                         {
1175                                         fprintf(stderr, "ERROR: got stuck\n");
1176                                         if (strcmp("SSLv2", SSL_get_version(c_ssl)) == 0)
1177                                                 {
1178                                                 fprintf(stderr, "This can happen for SSL2 because "
1179                                                         "CLIENT-FINISHED and SERVER-VERIFY are written \n"
1180                                                         "concurrently ...");
1181                                                 if (strncmp("2SCF", SSL_state_string(c_ssl), 4) == 0
1182                                                         && strncmp("2SSV", SSL_state_string(s_ssl), 4) == 0)
1183                                                         {
1184                                                         fprintf(stderr, " ok.\n");
1185                                                         goto end;
1186                                                         }
1187                                                 }
1188                                         fprintf(stderr, " ERROR.\n");
1189                                         goto err;
1190                                         }
1191                         prev_progress = progress;
1192                         }
1193                 }
1194         while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
1195
1196         if (verbose)
1197                 print_details(c_ssl, "DONE via BIO pair: ");
1198 end:
1199         ret = 0;
1200
1201  err:
1202         ERR_print_errors(bio_err);
1203         
1204         if (server)
1205                 BIO_free(server);
1206         if (server_io)
1207                 BIO_free(server_io);
1208         if (client)
1209                 BIO_free(client);
1210         if (client_io)
1211                 BIO_free(client_io);
1212         if (s_ssl_bio)
1213                 BIO_free(s_ssl_bio);
1214         if (c_ssl_bio)
1215                 BIO_free(c_ssl_bio);
1216
1217         return ret;
1218         }
1219
1220
1221 #define W_READ  1
1222 #define W_WRITE 2
1223 #define C_DONE  1
1224 #define S_DONE  2
1225
1226 int doit(SSL *s_ssl, SSL *c_ssl, long count)
1227         {
1228         MS_STATIC char cbuf[1024*8],sbuf[1024*8];
1229         long cw_num=count,cr_num=count;
1230         long sw_num=count,sr_num=count;
1231         int ret=1;
1232         BIO *c_to_s=NULL;
1233         BIO *s_to_c=NULL;
1234         BIO *c_bio=NULL;
1235         BIO *s_bio=NULL;
1236         int c_r,c_w,s_r,s_w;
1237         int c_want,s_want;
1238         int i,j;
1239         int done=0;
1240         int c_write,s_write;
1241         int do_server=0,do_client=0;
1242
1243         memset(cbuf,0,sizeof(cbuf));
1244         memset(sbuf,0,sizeof(sbuf));
1245
1246         c_to_s=BIO_new(BIO_s_mem());
1247         s_to_c=BIO_new(BIO_s_mem());
1248         if ((s_to_c == NULL) || (c_to_s == NULL))
1249                 {
1250                 ERR_print_errors(bio_err);
1251                 goto err;
1252                 }
1253
1254         c_bio=BIO_new(BIO_f_ssl());
1255         s_bio=BIO_new(BIO_f_ssl());
1256         if ((c_bio == NULL) || (s_bio == NULL))
1257                 {
1258                 ERR_print_errors(bio_err);
1259                 goto err;
1260                 }
1261
1262         SSL_set_connect_state(c_ssl);
1263         SSL_set_bio(c_ssl,s_to_c,c_to_s);
1264         BIO_set_ssl(c_bio,c_ssl,BIO_NOCLOSE);
1265
1266         SSL_set_accept_state(s_ssl);
1267         SSL_set_bio(s_ssl,c_to_s,s_to_c);
1268         BIO_set_ssl(s_bio,s_ssl,BIO_NOCLOSE);
1269
1270         c_r=0; s_r=1;
1271         c_w=1; s_w=0;
1272         c_want=W_WRITE;
1273         s_want=0;
1274         c_write=1,s_write=0;
1275
1276         /* We can always do writes */
1277         for (;;)
1278                 {
1279                 do_server=0;
1280                 do_client=0;
1281
1282                 i=(int)BIO_pending(s_bio);
1283                 if ((i && s_r) || s_w) do_server=1;
1284
1285                 i=(int)BIO_pending(c_bio);
1286                 if ((i && c_r) || c_w) do_client=1;
1287
1288                 if (do_server && debug)
1289                         {
1290                         if (SSL_in_init(s_ssl))
1291                                 printf("server waiting in SSL_accept - %s\n",
1292                                         SSL_state_string_long(s_ssl));
1293 /*                      else if (s_write)
1294                                 printf("server:SSL_write()\n");
1295                         else
1296                                 printf("server:SSL_read()\n"); */
1297                         }
1298
1299                 if (do_client && debug)
1300                         {
1301                         if (SSL_in_init(c_ssl))
1302                                 printf("client waiting in SSL_connect - %s\n",
1303                                         SSL_state_string_long(c_ssl));
1304 /*                      else if (c_write)
1305                                 printf("client:SSL_write()\n");
1306                         else
1307                                 printf("client:SSL_read()\n"); */
1308                         }
1309
1310                 if (!do_client && !do_server)
1311                         {
1312                         fprintf(stdout,"ERROR IN STARTUP\n");
1313                         ERR_print_errors(bio_err);
1314                         break;
1315                         }
1316                 if (do_client && !(done & C_DONE))
1317                         {
1318                         if (c_write)
1319                                 {
1320                                 j=(cw_num > (long)sizeof(cbuf))
1321                                         ?sizeof(cbuf):(int)cw_num;
1322                                 i=BIO_write(c_bio,cbuf,j);
1323                                 if (i < 0)
1324                                         {
1325                                         c_r=0;
1326                                         c_w=0;
1327                                         if (BIO_should_retry(c_bio))
1328                                                 {
1329                                                 if (BIO_should_read(c_bio))
1330                                                         c_r=1;
1331                                                 if (BIO_should_write(c_bio))
1332                                                         c_w=1;
1333                                                 }
1334                                         else
1335                                                 {
1336                                                 fprintf(stderr,"ERROR in CLIENT\n");
1337                                                 ERR_print_errors(bio_err);
1338                                                 goto err;
1339                                                 }
1340                                         }
1341                                 else if (i == 0)
1342                                         {
1343                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
1344                                         goto err;
1345                                         }
1346                                 else
1347                                         {
1348                                         if (debug)
1349                                                 printf("client wrote %d\n",i);
1350                                         /* ok */
1351                                         s_r=1;
1352                                         c_write=0;
1353                                         cw_num-=i;
1354                                         }
1355                                 }
1356                         else
1357                                 {
1358                                 i=BIO_read(c_bio,cbuf,sizeof(cbuf));
1359                                 if (i < 0)
1360                                         {
1361                                         c_r=0;
1362                                         c_w=0;
1363                                         if (BIO_should_retry(c_bio))
1364                                                 {
1365                                                 if (BIO_should_read(c_bio))
1366                                                         c_r=1;
1367                                                 if (BIO_should_write(c_bio))
1368                                                         c_w=1;
1369                                                 }
1370                                         else
1371                                                 {
1372                                                 fprintf(stderr,"ERROR in CLIENT\n");
1373                                                 ERR_print_errors(bio_err);
1374                                                 goto err;
1375                                                 }
1376                                         }
1377                                 else if (i == 0)
1378                                         {
1379                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
1380                                         goto err;
1381                                         }
1382                                 else
1383                                         {
1384                                         if (debug)
1385                                                 printf("client read %d\n",i);
1386                                         cr_num-=i;
1387                                         if (sw_num > 0)
1388                                                 {
1389                                                 s_write=1;
1390                                                 s_w=1;
1391                                                 }
1392                                         if (cr_num <= 0)
1393                                                 {
1394                                                 s_write=1;
1395                                                 s_w=1;
1396                                                 done=S_DONE|C_DONE;
1397                                                 }
1398                                         }
1399                                 }
1400                         }
1401
1402                 if (do_server && !(done & S_DONE))
1403                         {
1404                         if (!s_write)
1405                                 {
1406                                 i=BIO_read(s_bio,sbuf,sizeof(cbuf));
1407                                 if (i < 0)
1408                                         {
1409                                         s_r=0;
1410                                         s_w=0;
1411                                         if (BIO_should_retry(s_bio))
1412                                                 {
1413                                                 if (BIO_should_read(s_bio))
1414                                                         s_r=1;
1415                                                 if (BIO_should_write(s_bio))
1416                                                         s_w=1;
1417                                                 }
1418                                         else
1419                                                 {
1420                                                 fprintf(stderr,"ERROR in SERVER\n");
1421                                                 ERR_print_errors(bio_err);
1422                                                 goto err;
1423                                                 }
1424                                         }
1425                                 else if (i == 0)
1426                                         {
1427                                         ERR_print_errors(bio_err);
1428                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_read\n");
1429                                         goto err;
1430                                         }
1431                                 else
1432                                         {
1433                                         if (debug)
1434                                                 printf("server read %d\n",i);
1435                                         sr_num-=i;
1436                                         if (cw_num > 0)
1437                                                 {
1438                                                 c_write=1;
1439                                                 c_w=1;
1440                                                 }
1441                                         if (sr_num <= 0)
1442                                                 {
1443                                                 s_write=1;
1444                                                 s_w=1;
1445                                                 c_write=0;
1446                                                 }
1447                                         }
1448                                 }
1449                         else
1450                                 {
1451                                 j=(sw_num > (long)sizeof(sbuf))?
1452                                         sizeof(sbuf):(int)sw_num;
1453                                 i=BIO_write(s_bio,sbuf,j);
1454                                 if (i < 0)
1455                                         {
1456                                         s_r=0;
1457                                         s_w=0;
1458                                         if (BIO_should_retry(s_bio))
1459                                                 {
1460                                                 if (BIO_should_read(s_bio))
1461                                                         s_r=1;
1462                                                 if (BIO_should_write(s_bio))
1463                                                         s_w=1;
1464                                                 }
1465                                         else
1466                                                 {
1467                                                 fprintf(stderr,"ERROR in SERVER\n");
1468                                                 ERR_print_errors(bio_err);
1469                                                 goto err;
1470                                                 }
1471                                         }
1472                                 else if (i == 0)
1473                                         {
1474                                         ERR_print_errors(bio_err);
1475                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_write\n");
1476                                         goto err;
1477                                         }
1478                                 else
1479                                         {
1480                                         if (debug)
1481                                                 printf("server wrote %d\n",i);
1482                                         sw_num-=i;
1483                                         s_write=0;
1484                                         c_r=1;
1485                                         if (sw_num <= 0)
1486                                                 done|=S_DONE;
1487                                         }
1488                                 }
1489                         }
1490
1491                 if ((done & S_DONE) && (done & C_DONE)) break;
1492                 }
1493
1494         if (verbose)
1495                 print_details(c_ssl, "DONE: ");
1496         ret=0;
1497 err:
1498         /* We have to set the BIO's to NULL otherwise they will be
1499          * OPENSSL_free()ed twice.  Once when th s_ssl is SSL_free()ed and
1500          * again when c_ssl is SSL_free()ed.
1501          * This is a hack required because s_ssl and c_ssl are sharing the same
1502          * BIO structure and SSL_set_bio() and SSL_free() automatically
1503          * BIO_free non NULL entries.
1504          * You should not normally do this or be required to do this */
1505         if (s_ssl != NULL)
1506                 {
1507                 s_ssl->rbio=NULL;
1508                 s_ssl->wbio=NULL;
1509                 }
1510         if (c_ssl != NULL)
1511                 {
1512                 c_ssl->rbio=NULL;
1513                 c_ssl->wbio=NULL;
1514                 }
1515
1516         if (c_to_s != NULL) BIO_free(c_to_s);
1517         if (s_to_c != NULL) BIO_free(s_to_c);
1518         if (c_bio != NULL) BIO_free_all(c_bio);
1519         if (s_bio != NULL) BIO_free_all(s_bio);
1520         return(ret);
1521         }
1522
1523 static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
1524         {
1525         char *s,buf[256];
1526
1527         s=X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),buf,
1528                             sizeof buf);
1529         if (s != NULL)
1530                 {
1531                 if (ok)
1532                         fprintf(stderr,"depth=%d %s\n",ctx->error_depth,buf);
1533                 else
1534                         fprintf(stderr,"depth=%d error=%d %s\n",
1535                                 ctx->error_depth,ctx->error,buf);
1536                 }
1537
1538         if (ok == 0)
1539                 {
1540                 switch (ctx->error)
1541                         {
1542                 case X509_V_ERR_CERT_NOT_YET_VALID:
1543                 case X509_V_ERR_CERT_HAS_EXPIRED:
1544                 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
1545                         ok=1;
1546                         }
1547                 }
1548
1549         return(ok);
1550         }
1551
1552 static int MS_CALLBACK app_verify_callback(X509_STORE_CTX *ctx, void *arg)
1553         {
1554         char *s = NULL,buf[256];
1555         int ok=1;
1556
1557         fprintf(stderr, "In app_verify_callback, allowing cert. ");
1558         fprintf(stderr, "Arg is: %s\n", (char *)arg);
1559         fprintf(stderr, "Finished printing do we have a context? 0x%x a cert? 0x%x\n",
1560                         (unsigned int)ctx, (unsigned int)ctx->cert);
1561         if (ctx->cert)
1562                 s=X509_NAME_oneline(X509_get_subject_name(ctx->cert),buf,256);
1563         if (s != NULL)
1564                 {
1565                         fprintf(stderr,"cert depth=%d %s\n",ctx->error_depth,buf);
1566                 }
1567
1568         return(ok);
1569         }
1570
1571 #ifndef OPENSSL_NO_RSA
1572 static RSA *rsa_tmp=NULL;
1573
1574 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1575         {
1576         if (rsa_tmp == NULL)
1577                 {
1578                 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1579                 (void)BIO_flush(bio_err);
1580                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1581                 BIO_printf(bio_err,"\n");
1582                 (void)BIO_flush(bio_err);
1583                 }
1584         return(rsa_tmp);
1585         }
1586
1587 static void free_tmp_rsa(void)
1588         {
1589         if (rsa_tmp != NULL)
1590                 {
1591                 RSA_free(rsa_tmp);
1592                 rsa_tmp = NULL;
1593                 }
1594         }
1595 #endif
1596
1597 #ifndef OPENSSL_NO_DH
1598 /* These DH parameters have been generated as follows:
1599  *    $ openssl dhparam -C -noout 512
1600  *    $ openssl dhparam -C -noout 1024
1601  *    $ openssl dhparam -C -noout -dsaparam 1024
1602  * (The third function has been renamed to avoid name conflicts.)
1603  */
1604 static DH *get_dh512()
1605         {
1606         static unsigned char dh512_p[]={
1607                 0xCB,0xC8,0xE1,0x86,0xD0,0x1F,0x94,0x17,0xA6,0x99,0xF0,0xC6,
1608                 0x1F,0x0D,0xAC,0xB6,0x25,0x3E,0x06,0x39,0xCA,0x72,0x04,0xB0,
1609                 0x6E,0xDA,0xC0,0x61,0xE6,0x7A,0x77,0x25,0xE8,0x3B,0xB9,0x5F,
1610                 0x9A,0xB6,0xB5,0xFE,0x99,0x0B,0xA1,0x93,0x4E,0x35,0x33,0xB8,
1611                 0xE1,0xF1,0x13,0x4F,0x59,0x1A,0xD2,0x57,0xC0,0x26,0x21,0x33,
1612                 0x02,0xC5,0xAE,0x23,
1613                 };
1614         static unsigned char dh512_g[]={
1615                 0x02,
1616                 };
1617         DH *dh;
1618
1619         if ((dh=DH_new()) == NULL) return(NULL);
1620         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
1621         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
1622         if ((dh->p == NULL) || (dh->g == NULL))
1623                 { DH_free(dh); return(NULL); }
1624         return(dh);
1625         }
1626
1627 static DH *get_dh1024()
1628         {
1629         static unsigned char dh1024_p[]={
1630                 0xF8,0x81,0x89,0x7D,0x14,0x24,0xC5,0xD1,0xE6,0xF7,0xBF,0x3A,
1631                 0xE4,0x90,0xF4,0xFC,0x73,0xFB,0x34,0xB5,0xFA,0x4C,0x56,0xA2,
1632                 0xEA,0xA7,0xE9,0xC0,0xC0,0xCE,0x89,0xE1,0xFA,0x63,0x3F,0xB0,
1633                 0x6B,0x32,0x66,0xF1,0xD1,0x7B,0xB0,0x00,0x8F,0xCA,0x87,0xC2,
1634                 0xAE,0x98,0x89,0x26,0x17,0xC2,0x05,0xD2,0xEC,0x08,0xD0,0x8C,
1635                 0xFF,0x17,0x52,0x8C,0xC5,0x07,0x93,0x03,0xB1,0xF6,0x2F,0xB8,
1636                 0x1C,0x52,0x47,0x27,0x1B,0xDB,0xD1,0x8D,0x9D,0x69,0x1D,0x52,
1637                 0x4B,0x32,0x81,0xAA,0x7F,0x00,0xC8,0xDC,0xE6,0xD9,0xCC,0xC1,
1638                 0x11,0x2D,0x37,0x34,0x6C,0xEA,0x02,0x97,0x4B,0x0E,0xBB,0xB1,
1639                 0x71,0x33,0x09,0x15,0xFD,0xDD,0x23,0x87,0x07,0x5E,0x89,0xAB,
1640                 0x6B,0x7C,0x5F,0xEC,0xA6,0x24,0xDC,0x53,
1641                 };
1642         static unsigned char dh1024_g[]={
1643                 0x02,
1644                 };
1645         DH *dh;
1646
1647         if ((dh=DH_new()) == NULL) return(NULL);
1648         dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
1649         dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
1650         if ((dh->p == NULL) || (dh->g == NULL))
1651                 { DH_free(dh); return(NULL); }
1652         return(dh);
1653         }
1654
1655 static DH *get_dh1024dsa()
1656         {
1657         static unsigned char dh1024_p[]={
1658                 0xC8,0x00,0xF7,0x08,0x07,0x89,0x4D,0x90,0x53,0xF3,0xD5,0x00,
1659                 0x21,0x1B,0xF7,0x31,0xA6,0xA2,0xDA,0x23,0x9A,0xC7,0x87,0x19,
1660                 0x3B,0x47,0xB6,0x8C,0x04,0x6F,0xFF,0xC6,0x9B,0xB8,0x65,0xD2,
1661                 0xC2,0x5F,0x31,0x83,0x4A,0xA7,0x5F,0x2F,0x88,0x38,0xB6,0x55,
1662                 0xCF,0xD9,0x87,0x6D,0x6F,0x9F,0xDA,0xAC,0xA6,0x48,0xAF,0xFC,
1663                 0x33,0x84,0x37,0x5B,0x82,0x4A,0x31,0x5D,0xE7,0xBD,0x52,0x97,
1664                 0xA1,0x77,0xBF,0x10,0x9E,0x37,0xEA,0x64,0xFA,0xCA,0x28,0x8D,
1665                 0x9D,0x3B,0xD2,0x6E,0x09,0x5C,0x68,0xC7,0x45,0x90,0xFD,0xBB,
1666                 0x70,0xC9,0x3A,0xBB,0xDF,0xD4,0x21,0x0F,0xC4,0x6A,0x3C,0xF6,
1667                 0x61,0xCF,0x3F,0xD6,0x13,0xF1,0x5F,0xBC,0xCF,0xBC,0x26,0x9E,
1668                 0xBC,0x0B,0xBD,0xAB,0x5D,0xC9,0x54,0x39,
1669                 };
1670         static unsigned char dh1024_g[]={
1671                 0x3B,0x40,0x86,0xE7,0xF3,0x6C,0xDE,0x67,0x1C,0xCC,0x80,0x05,
1672                 0x5A,0xDF,0xFE,0xBD,0x20,0x27,0x74,0x6C,0x24,0xC9,0x03,0xF3,
1673                 0xE1,0x8D,0xC3,0x7D,0x98,0x27,0x40,0x08,0xB8,0x8C,0x6A,0xE9,
1674                 0xBB,0x1A,0x3A,0xD6,0x86,0x83,0x5E,0x72,0x41,0xCE,0x85,0x3C,
1675                 0xD2,0xB3,0xFC,0x13,0xCE,0x37,0x81,0x9E,0x4C,0x1C,0x7B,0x65,
1676                 0xD3,0xE6,0xA6,0x00,0xF5,0x5A,0x95,0x43,0x5E,0x81,0xCF,0x60,
1677                 0xA2,0x23,0xFC,0x36,0xA7,0x5D,0x7A,0x4C,0x06,0x91,0x6E,0xF6,
1678                 0x57,0xEE,0x36,0xCB,0x06,0xEA,0xF5,0x3D,0x95,0x49,0xCB,0xA7,
1679                 0xDD,0x81,0xDF,0x80,0x09,0x4A,0x97,0x4D,0xA8,0x22,0x72,0xA1,
1680                 0x7F,0xC4,0x70,0x56,0x70,0xE8,0x20,0x10,0x18,0x8F,0x2E,0x60,
1681                 0x07,0xE7,0x68,0x1A,0x82,0x5D,0x32,0xA2,
1682                 };
1683         DH *dh;
1684
1685         if ((dh=DH_new()) == NULL) return(NULL);
1686         dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
1687         dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
1688         if ((dh->p == NULL) || (dh->g == NULL))
1689                 { DH_free(dh); return(NULL); }
1690         dh->length = 160;
1691         return(dh);
1692         }
1693 #endif