5eda38e676d1cdb5e0eef29c561bfba713c9b1f9
[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 #include <assert.h>
60 #include <errno.h>
61 #include <limits.h>
62 #include <stdio.h>
63 #include <stdlib.h>
64 #include <string.h>
65
66 #include "openssl/e_os.h"
67
68 #include <openssl/bio.h>
69 #include <openssl/crypto.h>
70 #include <openssl/x509.h>
71 #include <openssl/ssl.h>
72 #include <openssl/err.h>
73 #include <openssl/rand.h>
74 #ifdef WINDOWS
75 #include "../crypto/bio/bss_file.c"
76 #endif
77
78 #ifdef VMS
79 #  define TEST_SERVER_CERT "SYS$DISK:[-.APPS]SERVER.PEM"
80 #  define TEST_CLIENT_CERT "SYS$DISK:[-.APPS]CLIENT.PEM"
81 #else
82 #  define TEST_SERVER_CERT "../apps/server.pem"
83 #  define TEST_CLIENT_CERT "../apps/client.pem"
84 #endif
85
86 static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
87 #ifndef NO_RSA
88 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export,int keylength);
89 #endif
90 #ifndef NO_DH
91 static DH *get_dh512(void);
92 static DH *get_dh1024(void);
93 static DH *get_dh1024dsa(void);
94 #endif
95
96 static BIO *bio_err=NULL;
97 static BIO *bio_stdout=NULL;
98
99 static char *cipher=NULL;
100 static int verbose=0;
101 static int debug=0;
102 #if 0
103 /* Not used yet. */
104 #ifdef FIONBIO
105 static int s_nbio=0;
106 #endif
107 #endif
108
109 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
110
111 int doit_biopair(SSL *s_ssl,SSL *c_ssl,long bytes);
112 int doit(SSL *s_ssl,SSL *c_ssl,long bytes);
113 static void sv_usage(void)
114         {
115         fprintf(stderr,"usage: ssltest [args ...]\n");
116         fprintf(stderr,"\n");
117         fprintf(stderr," -server_auth  - check server certificate\n");
118         fprintf(stderr," -client_auth  - do client authentication\n");
119         fprintf(stderr," -v            - more output\n");
120         fprintf(stderr," -d            - debug output\n");
121         fprintf(stderr," -reuse        - use session-id reuse\n");
122         fprintf(stderr," -num <val>    - number of connections to perform\n");
123         fprintf(stderr," -bytes <val>  - number of bytes to swap between client/server\n");
124 #ifndef NO_DH
125         fprintf(stderr," -dhe1024      - use 1024 bit key (safe prime) for DHE\n");
126         fprintf(stderr," -dhe1024dsa   - use 1024 bit key (with 160-bit subprime) for DHE\n");
127         fprintf(stderr," -no_dhe       - disable DHE\n");
128 #endif
129 #ifndef NO_SSL2
130         fprintf(stderr," -ssl2         - use SSLv2\n");
131 #endif
132 #ifndef NO_SSL3
133         fprintf(stderr," -ssl3         - use SSLv3\n");
134 #endif
135 #ifndef NO_TLS1
136         fprintf(stderr," -tls1         - use TLSv1\n");
137 #endif
138         fprintf(stderr," -CApath arg   - PEM format directory of CA's\n");
139         fprintf(stderr," -CAfile arg   - PEM format file of CA's\n");
140         fprintf(stderr," -cert arg     - Certificate file\n");
141         fprintf(stderr," -s_cert arg   - Just the server certificate file\n");
142         fprintf(stderr," -c_cert arg   - Just the client certificate file\n");
143         fprintf(stderr," -cipher arg   - The cipher list\n");
144         fprintf(stderr," -bio_pair     - Use BIO pairs\n");
145         fprintf(stderr," -f            - Test even cases that can't work\n");
146         }
147
148 int main(int argc, char *argv[])
149         {
150         char *CApath=NULL,*CAfile=NULL;
151         int badop=0;
152         int bio_pair=0;
153         int force=0;
154         int tls1=0,ssl2=0,ssl3=0,ret=1;
155         int client_auth=0;
156         int server_auth=0,i;
157         char *server_cert=TEST_SERVER_CERT;
158         char *client_cert=TEST_CLIENT_CERT;
159         SSL_CTX *s_ctx=NULL;
160         SSL_CTX *c_ctx=NULL;
161         SSL_METHOD *meth=NULL;
162         SSL *c_ssl,*s_ssl;
163         int number=1,reuse=0;
164         long bytes=1L;
165         SSL_CIPHER *ciph;
166 #ifndef NO_DH
167         DH *dh;
168         int dhe1024 = 0, dhe1024dsa = 0;
169 #endif
170         int no_dhe = 0;
171         verbose = 0;
172         debug = 0;
173         cipher = 0;
174         
175         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
176
177         RAND_seed(rnd_seed, sizeof rnd_seed);
178
179         bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
180         bio_stdout=BIO_new_fp(stdout,BIO_NOCLOSE);
181
182         argc--;
183         argv++;
184
185         while (argc >= 1)
186                 {
187                 if      (strcmp(*argv,"-server_auth") == 0)
188                         server_auth=1;
189                 else if (strcmp(*argv,"-client_auth") == 0)
190                         client_auth=1;
191                 else if (strcmp(*argv,"-v") == 0)
192                         verbose=1;
193                 else if (strcmp(*argv,"-d") == 0)
194                         debug=1;
195                 else if (strcmp(*argv,"-reuse") == 0)
196                         reuse=1;
197 #ifndef NO_DH
198                 else if (strcmp(*argv,"-dhe1024") == 0)
199                         dhe1024=1;
200                 else if (strcmp(*argv,"-dhe1024dsa") == 0)
201                         dhe1024dsa=1;
202 #endif
203                 else if (strcmp(*argv,"-no_dhe") == 0)
204                         no_dhe=1;
205                 else if (strcmp(*argv,"-ssl2") == 0)
206                         ssl2=1;
207                 else if (strcmp(*argv,"-tls1") == 0)
208                         tls1=1;
209                 else if (strcmp(*argv,"-ssl3") == 0)
210                         ssl3=1;
211                 else if (strncmp(*argv,"-num",4) == 0)
212                         {
213                         if (--argc < 1) goto bad;
214                         number= atoi(*(++argv));
215                         if (number == 0) number=1;
216                         }
217                 else if (strcmp(*argv,"-bytes") == 0)
218                         {
219                         if (--argc < 1) goto bad;
220                         bytes= atol(*(++argv));
221                         if (bytes == 0L) bytes=1L;
222                         i=strlen(argv[0]);
223                         if (argv[0][i-1] == 'k') bytes*=1024L;
224                         if (argv[0][i-1] == 'm') bytes*=1024L*1024L;
225                         }
226                 else if (strcmp(*argv,"-cert") == 0)
227                         {
228                         if (--argc < 1) goto bad;
229                         server_cert= *(++argv);
230                         }
231                 else if (strcmp(*argv,"-s_cert") == 0)
232                         {
233                         if (--argc < 1) goto bad;
234                         server_cert= *(++argv);
235                         }
236                 else if (strcmp(*argv,"-c_cert") == 0)
237                         {
238                         if (--argc < 1) goto bad;
239                         client_cert= *(++argv);
240                         }
241                 else if (strcmp(*argv,"-cipher") == 0)
242                         {
243                         if (--argc < 1) goto bad;
244                         cipher= *(++argv);
245                         }
246                 else if (strcmp(*argv,"-CApath") == 0)
247                         {
248                         if (--argc < 1) goto bad;
249                         CApath= *(++argv);
250                         }
251                 else if (strcmp(*argv,"-CAfile") == 0)
252                         {
253                         if (--argc < 1) goto bad;
254                         CAfile= *(++argv);
255                         }
256                 else if (strcmp(*argv,"-bio_pair") == 0)
257                         {
258                         bio_pair = 1;
259                         }
260                 else if (strcmp(*argv,"-f") == 0)
261                         {
262                         force = 1;
263                         }
264                 else
265                         {
266                         fprintf(stderr,"unknown option %s\n",*argv);
267                         badop=1;
268                         break;
269                         }
270                 argc--;
271                 argv++;
272                 }
273         if (badop)
274                 {
275 bad:
276                 sv_usage();
277                 goto end;
278                 }
279
280         if (!ssl2 && !ssl3 && !tls1 && number > 1 && !reuse && !force)
281                 {
282                 fprintf(stderr, "This case cannot work.  Use -f switch to perform "
283                         "the test anyway\n"
284                         "(and -d to see what happens, "
285                         "and -bio_pair to really make it happen :-)\n"
286                         "or add one of -ssl2, -ssl3, -tls1, -reuse to "
287                         "avoid protocol mismatch.\n");
288                 exit(1);
289                 }
290
291 /*      if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */
292
293         SSL_library_init();
294         SSL_load_error_strings();
295
296 #if !defined(NO_SSL2) && !defined(NO_SSL3)
297         if (ssl2)
298                 meth=SSLv2_method();
299         else 
300         if (tls1)
301                 meth=TLSv1_method();
302         else
303         if (ssl3)
304                 meth=SSLv3_method();
305         else
306                 meth=SSLv23_method();
307 #else
308 #ifdef NO_SSL2
309         meth=SSLv3_method();
310 #else
311         meth=SSLv2_method();
312 #endif
313 #endif
314
315         c_ctx=SSL_CTX_new(meth);
316         s_ctx=SSL_CTX_new(meth);
317         if ((c_ctx == NULL) || (s_ctx == NULL))
318                 {
319                 ERR_print_errors(bio_err);
320                 goto end;
321                 }
322
323         if (cipher != NULL)
324                 {
325                 SSL_CTX_set_cipher_list(c_ctx,cipher);
326                 SSL_CTX_set_cipher_list(s_ctx,cipher);
327                 }
328
329 #ifndef NO_DH
330         if (!no_dhe)
331                 {
332                 if (dhe1024dsa)
333                         {
334                         /* use SSL_OP_SINGLE_DH_USE to avoid small subgroup attacks */
335                         SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
336                         dh=get_dh1024dsa();
337                         }
338                 else if (dhe1024)
339                         dh=get_dh1024();
340                 else
341                         dh=get_dh512();
342                 SSL_CTX_set_tmp_dh(s_ctx,dh);
343                 DH_free(dh);
344                 }
345 #else
346         (void)no_dhe;
347 #endif
348
349 #ifndef NO_RSA
350         SSL_CTX_set_tmp_rsa_callback(s_ctx,tmp_rsa_cb);
351 #endif
352
353         if (!SSL_CTX_use_certificate_file(s_ctx,server_cert,SSL_FILETYPE_PEM))
354                 {
355                 ERR_print_errors(bio_err);
356                 }
357         else if (!SSL_CTX_use_PrivateKey_file(s_ctx,server_cert,
358                 SSL_FILETYPE_PEM))
359                 {
360                 ERR_print_errors(bio_err);
361                 goto end;
362                 }
363
364         if (client_auth)
365                 {
366                 SSL_CTX_use_certificate_file(c_ctx,client_cert,
367                         SSL_FILETYPE_PEM);
368                 SSL_CTX_use_PrivateKey_file(c_ctx,client_cert,
369                         SSL_FILETYPE_PEM);
370                 }
371
372         if (    (!SSL_CTX_load_verify_locations(s_ctx,CAfile,CApath)) ||
373                 (!SSL_CTX_set_default_verify_paths(s_ctx)) ||
374                 (!SSL_CTX_load_verify_locations(c_ctx,CAfile,CApath)) ||
375                 (!SSL_CTX_set_default_verify_paths(c_ctx)))
376                 {
377                 /* fprintf(stderr,"SSL_load_verify_locations\n"); */
378                 ERR_print_errors(bio_err);
379                 /* goto end; */
380                 }
381
382         if (client_auth)
383                 {
384                 BIO_printf(bio_err,"client authentication\n");
385                 SSL_CTX_set_verify(s_ctx,
386                         SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
387                         verify_callback);
388                 }
389         if (server_auth)
390                 {
391                 BIO_printf(bio_err,"server authentication\n");
392                 SSL_CTX_set_verify(c_ctx,SSL_VERIFY_PEER,
393                         verify_callback);
394                 }
395         
396         {
397                 int session_id_context = 0;
398                 SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context, sizeof session_id_context);
399         }
400
401         c_ssl=SSL_new(c_ctx);
402         s_ssl=SSL_new(s_ctx);
403
404         for (i=0; i<number; i++)
405                 {
406                 if (!reuse) SSL_set_session(c_ssl,NULL);
407                 if (bio_pair)
408                         ret=doit_biopair(s_ssl,c_ssl,bytes);
409                 else
410                         ret=doit(s_ssl,c_ssl,bytes);
411                 }
412
413         if (!verbose)
414                 {
415                 ciph=SSL_get_current_cipher(c_ssl);
416                 BIO_printf(bio_stdout,"Protocol %s, cipher %s, %s\n",
417                         SSL_get_version(c_ssl),
418                         SSL_CIPHER_get_version(ciph),
419                         SSL_CIPHER_get_name(ciph));
420                 }
421         if ((number > 1) || (bytes > 1L))
422                 BIO_printf(bio_stdout, "%d handshakes of %ld bytes done\n",number,bytes);
423
424         SSL_free(s_ssl);
425         SSL_free(c_ssl);
426
427 end:
428         if (s_ctx != NULL) SSL_CTX_free(s_ctx);
429         if (c_ctx != NULL) SSL_CTX_free(c_ctx);
430
431         if (bio_stdout != NULL) BIO_free(bio_stdout);
432
433         ERR_free_strings();
434         ERR_remove_state(0);
435         EVP_cleanup();
436         CRYPTO_mem_leaks(bio_err);
437         if (bio_err != NULL) BIO_free(bio_err);
438         EXIT(ret);
439         }
440
441 int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count)
442         {
443         long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
444         BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
445         BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL;
446         SSL_CIPHER *ciph;
447         int ret = 1;
448         
449         size_t bufsiz = 256; /* small buffer for testing */
450
451         if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz))
452                 goto err;
453         if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz))
454                 goto err;
455         
456         s_ssl_bio = BIO_new(BIO_f_ssl());
457         if (!s_ssl_bio)
458                 goto err;
459
460         c_ssl_bio = BIO_new(BIO_f_ssl());
461         if (!c_ssl_bio)
462                 goto err;
463
464         SSL_set_connect_state(c_ssl);
465         SSL_set_bio(c_ssl, client, client);
466         (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
467
468         SSL_set_accept_state(s_ssl);
469         SSL_set_bio(s_ssl, server, server);
470         (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
471
472         do
473                 {
474                 /* c_ssl_bio:          SSL filter BIO
475                  *
476                  * client:             pseudo-I/O for SSL library
477                  *
478                  * client_io:          client's SSL communication; usually to be
479                  *                     relayed over some I/O facility, but in this
480                  *                     test program, we're the server, too:
481                  *
482                  * server_io:          server's SSL communication
483                  *
484                  * server:             pseudo-I/O for SSL library
485                  *
486                  * s_ssl_bio:          SSL filter BIO
487                  *
488                  * The client and the server each employ a "BIO pair":
489                  * client + client_io, server + server_io.
490                  * BIO pairs are symmetric.  A BIO pair behaves similar
491                  * to a non-blocking socketpair (but both endpoints must
492                  * be handled by the same thread).
493                  * [Here we could connect client and server to the ends
494                  * of a single BIO pair, but then this code would be less
495                  * suitable as an example for BIO pairs in general.]
496                  *
497                  * Useful functions for querying the state of BIO pair endpoints:
498                  *
499                  * BIO_ctrl_pending(bio)              number of bytes we can read now
500                  * BIO_ctrl_get_read_request(bio)     number of bytes needed to fulfil
501                  *                                      other side's read attempt
502                  * BIO_ctrl_get_write_guarantee(bio)   number of bytes we can write now
503                  *
504                  * ..._read_request is never more than ..._write_guarantee;
505                  * it depends on the application which one you should use.
506                  */
507
508                 /* We have non-blocking behaviour throughout this test program, but
509                  * can be sure that there is *some* progress in each iteration; so
510                  * we don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE
511                  * -- we just try everything in each iteration
512                  */
513
514                         {
515                         /* CLIENT */
516                 
517                         MS_STATIC char cbuf[1024*8];
518                         int i, r;
519
520                         if (debug)
521                                 if (SSL_in_init(c_ssl))
522                                         printf("client waiting in SSL_connect - %s\n",
523                                                 SSL_state_string_long(c_ssl));
524
525                         if (cw_num > 0)
526                                 {
527                                 /* Write to server. */
528                                 
529                                 if (cw_num > (long)sizeof cbuf)
530                                         i = sizeof cbuf;
531                                 else
532                                         i = (int)cw_num;
533                                 r = BIO_write(c_ssl_bio, cbuf, i);
534                                 if (r < 0)
535                                         {
536                                         if (!BIO_should_retry(c_ssl_bio))
537                                                 {
538                                                 fprintf(stderr,"ERROR in CLIENT\n");
539                                                 goto err;
540                                                 }
541                                         /* BIO_should_retry(...) can just be ignored here.
542                                          * The library expects us to call BIO_write with
543                                          * the same arguments again, and that's what we will
544                                          * do in the next iteration. */
545                                         }
546                                 else if (r == 0)
547                                         {
548                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
549                                         goto err;
550                                         }
551                                 else
552                                         {
553                                         if (debug)
554                                                 printf("client wrote %d\n", r);
555                                         cw_num -= r;                            
556                                         }
557                                 }
558
559                         if (cr_num > 0)
560                                 {
561                                 /* Read from server. */
562
563                                 r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
564                                 if (r < 0)
565                                         {
566                                         if (!BIO_should_retry(c_ssl_bio))
567                                                 {
568                                                 fprintf(stderr,"ERROR in CLIENT\n");
569                                                 goto err;
570                                                 }
571                                         /* Again, "BIO_should_retry" can be ignored. */
572                                         }
573                                 else if (r == 0)
574                                         {
575                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
576                                         goto err;
577                                         }
578                                 else
579                                         {
580                                         if (debug)
581                                                 printf("client read %d\n", r);
582                                         cr_num -= r;
583                                         }
584                                 }
585                         }
586
587                         {
588                         /* SERVER */
589                 
590                         MS_STATIC char sbuf[1024*8];
591                         int i, r;
592
593                         if (debug)
594                                 if (SSL_in_init(s_ssl))
595                                         printf("server waiting in SSL_accept - %s\n",
596                                                 SSL_state_string_long(s_ssl));
597
598                         if (sw_num > 0)
599                                 {
600                                 /* Write to client. */
601                                 
602                                 if (sw_num > (long)sizeof sbuf)
603                                         i = sizeof sbuf;
604                                 else
605                                         i = (int)sw_num;
606                                 r = BIO_write(s_ssl_bio, sbuf, i);
607                                 if (r < 0)
608                                         {
609                                         if (!BIO_should_retry(s_ssl_bio))
610                                                 {
611                                                 fprintf(stderr,"ERROR in SERVER\n");
612                                                 goto err;
613                                                 }
614                                         /* Ignore "BIO_should_retry". */
615                                         }
616                                 else if (r == 0)
617                                         {
618                                         fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
619                                         goto err;
620                                         }
621                                 else
622                                         {
623                                         if (debug)
624                                                 printf("server wrote %d\n", r);
625                                         sw_num -= r;                            
626                                         }
627                                 }
628
629                         if (sr_num > 0)
630                                 {
631                                 /* Read from client. */
632
633                                 r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
634                                 if (r < 0)
635                                         {
636                                         if (!BIO_should_retry(s_ssl_bio))
637                                                 {
638                                                 fprintf(stderr,"ERROR in SERVER\n");
639                                                 goto err;
640                                                 }
641                                         /* blah, blah */
642                                         }
643                                 else if (r == 0)
644                                         {
645                                         fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
646                                         goto err;
647                                         }
648                                 else
649                                         {
650                                         if (debug)
651                                                 printf("server read %d\n", r);
652                                         sr_num -= r;
653                                         }
654                                 }
655                         }
656                         
657                         {
658                         /* "I/O" BETWEEN CLIENT AND SERVER. */
659
660                         size_t r1, r2;
661                         BIO *io1 = server_io, *io2 = client_io;
662                         /* we use the non-copying interface for io1
663                          * and the standard BIO_write/BIO_read interface for io2
664                          */
665                         
666                         static int prev_progress = 1;
667                         int progress = 0;
668                         
669                         /* io1 to io2 */
670                         do
671                                 {
672                                 size_t num;
673                                 int r;
674
675                                 r1 = BIO_ctrl_pending(io1);
676                                 r2 = BIO_ctrl_get_write_guarantee(io2);
677
678                                 num = r1;
679                                 if (r2 < num)
680                                         num = r2;
681                                 if (num)
682                                         {
683                                         char *dataptr;
684
685                                         if (INT_MAX < num) /* yeah, right */
686                                                 num = INT_MAX;
687                                         
688                                         r = BIO_nread(io1, &dataptr, (int)num);
689                                         assert(r > 0);
690                                         assert(r <= (int)num);
691                                         /* possibly r < num (non-contiguous data) */
692                                         num = r;
693                                         r = BIO_write(io2, dataptr, (int)num);
694                                         if (r != (int)num) /* can't happen */
695                                                 {
696                                                 fprintf(stderr, "ERROR: BIO_write could not write "
697                                                         "BIO_ctrl_get_write_guarantee() bytes");
698                                                 goto err;
699                                                 }
700                                         progress = 1;
701
702                                         if (debug)
703                                                 printf((io1 == client_io) ?
704                                                         "C->S relaying: %d bytes\n" :
705                                                         "S->C relaying: %d bytes\n",
706                                                         (int)num);
707                                         }
708                                 }
709                         while (r1 && r2);
710
711                         /* io2 to io1 */
712                         {
713                                 size_t num;
714                                 int r;
715
716                                 r1 = BIO_ctrl_pending(io2);
717                                 r2 = BIO_ctrl_get_read_request(io1);
718                                 /* here we could use ..._get_write_guarantee instead of
719                                  * ..._get_read_request, but by using the latter
720                                  * we test restartability of the SSL implementation
721                                  * more thoroughly */
722                                 num = r1;
723                                 if (r2 < num)
724                                         num = r2;
725                                 if (num)
726                                         {
727                                         char *dataptr;
728                                         
729                                         if (INT_MAX < num)
730                                                 num = INT_MAX;
731
732                                         if (num > 1)
733                                                 --num; /* test restartability even more thoroughly */
734                                         
735                                         r = BIO_nwrite(io1, &dataptr, (int)num);
736                                         assert(r > 0);
737                                         assert(r <= (int)num);
738                                         num = r;
739                                         r = BIO_read(io2, dataptr, (int)num);
740                                         if (r != (int)num) /* can't happen */
741                                                 {
742                                                 fprintf(stderr, "ERROR: BIO_read could not read "
743                                                         "BIO_ctrl_pending() bytes");
744                                                 goto err;
745                                                 }
746                                         progress = 1;
747                                         
748                                         if (debug)
749                                                 printf((io2 == client_io) ?
750                                                         "C->S relaying: %d bytes\n" :
751                                                         "S->C relaying: %d bytes\n",
752                                                         (int)num);
753                                         }
754                         } /* no loop, BIO_ctrl_get_read_request now returns 0 anyway */
755
756                         if (!progress && !prev_progress)
757                                 if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0)
758                                         {
759                                         fprintf(stderr, "ERROR: got stuck\n");
760                                         if (strcmp("SSLv2", SSL_get_version(c_ssl)) == 0)
761                                                 {
762                                                 fprintf(stderr, "This can happen for SSL2 because "
763                                                         "CLIENT-FINISHED and SERVER-VERIFY are written \n"
764                                                         "concurrently ...");
765                                                 if (strncmp("2SCF", SSL_state_string(c_ssl), 4) == 0
766                                                         && strncmp("2SSV", SSL_state_string(s_ssl), 4) == 0)
767                                                         {
768                                                         fprintf(stderr, " ok.\n");
769                                                         goto end;
770                                                         }
771                                                 }
772                                         fprintf(stderr, " ERROR.\n");
773                                         goto err;
774                                         }
775                         prev_progress = progress;
776                         }
777                 }
778         while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
779
780         ciph = SSL_get_current_cipher(c_ssl);
781         if (verbose)
782                 fprintf(stdout,"DONE via BIO pair, protocol %s, cipher %s, %s\n",
783                         SSL_get_version(c_ssl),
784                         SSL_CIPHER_get_version(ciph),
785                         SSL_CIPHER_get_name(ciph));
786  end:
787         ret = 0;
788
789  err:
790         ERR_print_errors(bio_err);
791         
792         if (server)
793                 BIO_free(server);
794         if (server_io)
795                 BIO_free(server_io);
796         if (client)
797                 BIO_free(client);
798         if (client_io)
799                 BIO_free(client_io);
800         if (s_ssl_bio)
801                 BIO_free(s_ssl_bio);
802         if (c_ssl_bio)
803                 BIO_free(c_ssl_bio);
804
805         return ret;
806         }
807
808
809 #define W_READ  1
810 #define W_WRITE 2
811 #define C_DONE  1
812 #define S_DONE  2
813
814 int doit(SSL *s_ssl, SSL *c_ssl, long count)
815         {
816         MS_STATIC char cbuf[1024*8],sbuf[1024*8];
817         long cw_num=count,cr_num=count;
818         long sw_num=count,sr_num=count;
819         int ret=1;
820         BIO *c_to_s=NULL;
821         BIO *s_to_c=NULL;
822         BIO *c_bio=NULL;
823         BIO *s_bio=NULL;
824         int c_r,c_w,s_r,s_w;
825         int c_want,s_want;
826         int i,j;
827         int done=0;
828         int c_write,s_write;
829         int do_server=0,do_client=0;
830         SSL_CIPHER *ciph;
831
832         c_to_s=BIO_new(BIO_s_mem());
833         s_to_c=BIO_new(BIO_s_mem());
834         if ((s_to_c == NULL) || (c_to_s == NULL))
835                 {
836                 ERR_print_errors(bio_err);
837                 goto err;
838                 }
839
840         c_bio=BIO_new(BIO_f_ssl());
841         s_bio=BIO_new(BIO_f_ssl());
842         if ((c_bio == NULL) || (s_bio == NULL))
843                 {
844                 ERR_print_errors(bio_err);
845                 goto err;
846                 }
847
848         SSL_set_connect_state(c_ssl);
849         SSL_set_bio(c_ssl,s_to_c,c_to_s);
850         BIO_set_ssl(c_bio,c_ssl,BIO_NOCLOSE);
851
852         SSL_set_accept_state(s_ssl);
853         SSL_set_bio(s_ssl,c_to_s,s_to_c);
854         BIO_set_ssl(s_bio,s_ssl,BIO_NOCLOSE);
855
856         c_r=0; s_r=1;
857         c_w=1; s_w=0;
858         c_want=W_WRITE;
859         s_want=0;
860         c_write=1,s_write=0;
861
862         /* We can always do writes */
863         for (;;)
864                 {
865                 do_server=0;
866                 do_client=0;
867
868                 i=(int)BIO_pending(s_bio);
869                 if ((i && s_r) || s_w) do_server=1;
870
871                 i=(int)BIO_pending(c_bio);
872                 if ((i && c_r) || c_w) do_client=1;
873
874                 if (do_server && debug)
875                         {
876                         if (SSL_in_init(s_ssl))
877                                 printf("server waiting in SSL_accept - %s\n",
878                                         SSL_state_string_long(s_ssl));
879 /*                      else if (s_write)
880                                 printf("server:SSL_write()\n");
881                         else
882                                 printf("server:SSL_read()\n"); */
883                         }
884
885                 if (do_client && debug)
886                         {
887                         if (SSL_in_init(c_ssl))
888                                 printf("client waiting in SSL_connect - %s\n",
889                                         SSL_state_string_long(c_ssl));
890 /*                      else if (c_write)
891                                 printf("client:SSL_write()\n");
892                         else
893                                 printf("client:SSL_read()\n"); */
894                         }
895
896                 if (!do_client && !do_server)
897                         {
898                         fprintf(stdout,"ERROR IN STARTUP\n");
899                         ERR_print_errors(bio_err);
900                         break;
901                         }
902                 if (do_client && !(done & C_DONE))
903                         {
904                         if (c_write)
905                                 {
906                                 j=(cw_num > (long)sizeof(cbuf))
907                                         ?sizeof(cbuf):(int)cw_num;
908                                 i=BIO_write(c_bio,cbuf,j);
909                                 if (i < 0)
910                                         {
911                                         c_r=0;
912                                         c_w=0;
913                                         if (BIO_should_retry(c_bio))
914                                                 {
915                                                 if (BIO_should_read(c_bio))
916                                                         c_r=1;
917                                                 if (BIO_should_write(c_bio))
918                                                         c_w=1;
919                                                 }
920                                         else
921                                                 {
922                                                 fprintf(stderr,"ERROR in CLIENT\n");
923                                                 ERR_print_errors(bio_err);
924                                                 goto err;
925                                                 }
926                                         }
927                                 else if (i == 0)
928                                         {
929                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
930                                         goto err;
931                                         }
932                                 else
933                                         {
934                                         if (debug)
935                                                 printf("client wrote %d\n",i);
936                                         /* ok */
937                                         s_r=1;
938                                         c_write=0;
939                                         cw_num-=i;
940                                         }
941                                 }
942                         else
943                                 {
944                                 i=BIO_read(c_bio,cbuf,sizeof(cbuf));
945                                 if (i < 0)
946                                         {
947                                         c_r=0;
948                                         c_w=0;
949                                         if (BIO_should_retry(c_bio))
950                                                 {
951                                                 if (BIO_should_read(c_bio))
952                                                         c_r=1;
953                                                 if (BIO_should_write(c_bio))
954                                                         c_w=1;
955                                                 }
956                                         else
957                                                 {
958                                                 fprintf(stderr,"ERROR in CLIENT\n");
959                                                 ERR_print_errors(bio_err);
960                                                 goto err;
961                                                 }
962                                         }
963                                 else if (i == 0)
964                                         {
965                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
966                                         goto err;
967                                         }
968                                 else
969                                         {
970                                         if (debug)
971                                                 printf("client read %d\n",i);
972                                         cr_num-=i;
973                                         if (sw_num > 0)
974                                                 {
975                                                 s_write=1;
976                                                 s_w=1;
977                                                 }
978                                         if (cr_num <= 0)
979                                                 {
980                                                 s_write=1;
981                                                 s_w=1;
982                                                 done=S_DONE|C_DONE;
983                                                 }
984                                         }
985                                 }
986                         }
987
988                 if (do_server && !(done & S_DONE))
989                         {
990                         if (!s_write)
991                                 {
992                                 i=BIO_read(s_bio,sbuf,sizeof(cbuf));
993                                 if (i < 0)
994                                         {
995                                         s_r=0;
996                                         s_w=0;
997                                         if (BIO_should_retry(s_bio))
998                                                 {
999                                                 if (BIO_should_read(s_bio))
1000                                                         s_r=1;
1001                                                 if (BIO_should_write(s_bio))
1002                                                         s_w=1;
1003                                                 }
1004                                         else
1005                                                 {
1006                                                 fprintf(stderr,"ERROR in SERVER\n");
1007                                                 ERR_print_errors(bio_err);
1008                                                 goto err;
1009                                                 }
1010                                         }
1011                                 else if (i == 0)
1012                                         {
1013                                         ERR_print_errors(bio_err);
1014                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_read\n");
1015                                         goto err;
1016                                         }
1017                                 else
1018                                         {
1019                                         if (debug)
1020                                                 printf("server read %d\n",i);
1021                                         sr_num-=i;
1022                                         if (cw_num > 0)
1023                                                 {
1024                                                 c_write=1;
1025                                                 c_w=1;
1026                                                 }
1027                                         if (sr_num <= 0)
1028                                                 {
1029                                                 s_write=1;
1030                                                 s_w=1;
1031                                                 c_write=0;
1032                                                 }
1033                                         }
1034                                 }
1035                         else
1036                                 {
1037                                 j=(sw_num > (long)sizeof(sbuf))?
1038                                         sizeof(sbuf):(int)sw_num;
1039                                 i=BIO_write(s_bio,sbuf,j);
1040                                 if (i < 0)
1041                                         {
1042                                         s_r=0;
1043                                         s_w=0;
1044                                         if (BIO_should_retry(s_bio))
1045                                                 {
1046                                                 if (BIO_should_read(s_bio))
1047                                                         s_r=1;
1048                                                 if (BIO_should_write(s_bio))
1049                                                         s_w=1;
1050                                                 }
1051                                         else
1052                                                 {
1053                                                 fprintf(stderr,"ERROR in SERVER\n");
1054                                                 ERR_print_errors(bio_err);
1055                                                 goto err;
1056                                                 }
1057                                         }
1058                                 else if (i == 0)
1059                                         {
1060                                         ERR_print_errors(bio_err);
1061                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_write\n");
1062                                         goto err;
1063                                         }
1064                                 else
1065                                         {
1066                                         if (debug)
1067                                                 printf("server wrote %d\n",i);
1068                                         sw_num-=i;
1069                                         s_write=0;
1070                                         c_r=1;
1071                                         if (sw_num <= 0)
1072                                                 done|=S_DONE;
1073                                         }
1074                                 }
1075                         }
1076
1077                 if ((done & S_DONE) && (done & C_DONE)) break;
1078                 }
1079
1080         ciph=SSL_get_current_cipher(c_ssl);
1081         if (verbose)
1082                 fprintf(stdout,"DONE, protocol %s, cipher %s, %s\n",
1083                         SSL_get_version(c_ssl),
1084                         SSL_CIPHER_get_version(ciph),
1085                         SSL_CIPHER_get_name(ciph));
1086         ret=0;
1087 err:
1088         /* We have to set the BIO's to NULL otherwise they will be
1089          * Free()ed twice.  Once when th s_ssl is SSL_free()ed and
1090          * again when c_ssl is SSL_free()ed.
1091          * This is a hack required because s_ssl and c_ssl are sharing the same
1092          * BIO structure and SSL_set_bio() and SSL_free() automatically
1093          * BIO_free non NULL entries.
1094          * You should not normally do this or be required to do this */
1095         if (s_ssl != NULL)
1096                 {
1097                 s_ssl->rbio=NULL;
1098                 s_ssl->wbio=NULL;
1099                 }
1100         if (c_ssl != NULL)
1101                 {
1102                 c_ssl->rbio=NULL;
1103                 c_ssl->wbio=NULL;
1104                 }
1105
1106         if (c_to_s != NULL) BIO_free(c_to_s);
1107         if (s_to_c != NULL) BIO_free(s_to_c);
1108         if (c_bio != NULL) BIO_free_all(c_bio);
1109         if (s_bio != NULL) BIO_free_all(s_bio);
1110         return(ret);
1111         }
1112
1113 static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
1114         {
1115         char *s,buf[256];
1116
1117         s=X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),buf,256);
1118         if (s != NULL)
1119                 {
1120                 if (ok)
1121                         fprintf(stderr,"depth=%d %s\n",ctx->error_depth,buf);
1122                 else
1123                         fprintf(stderr,"depth=%d error=%d %s\n",
1124                                 ctx->error_depth,ctx->error,buf);
1125                 }
1126
1127         if (ok == 0)
1128                 {
1129                 switch (ctx->error)
1130                         {
1131                 case X509_V_ERR_CERT_NOT_YET_VALID:
1132                 case X509_V_ERR_CERT_HAS_EXPIRED:
1133                 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
1134                         ok=1;
1135                         }
1136                 }
1137
1138         return(ok);
1139         }
1140
1141 #ifndef NO_RSA
1142 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1143         {
1144         static RSA *rsa_tmp=NULL;
1145
1146         if (rsa_tmp == NULL)
1147                 {
1148                 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1149                 (void)BIO_flush(bio_err);
1150                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1151                 BIO_printf(bio_err,"\n");
1152                 (void)BIO_flush(bio_err);
1153                 }
1154         return(rsa_tmp);
1155         }
1156 #endif
1157
1158 #ifndef NO_DH
1159 /* These DH parameters have been generated as follows:
1160  *    $ openssl dhparam -C -noout 512
1161  *    $ openssl dhparam -C -noout 1024
1162  *    $ openssl dhparam -C -noout -dsaparam 1024
1163  * (The third function has been renamed to avoid name conflicts.)
1164  */
1165 DH *get_dh512()
1166         {
1167         static unsigned char dh512_p[]={
1168                 0xCB,0xC8,0xE1,0x86,0xD0,0x1F,0x94,0x17,0xA6,0x99,0xF0,0xC6,
1169                 0x1F,0x0D,0xAC,0xB6,0x25,0x3E,0x06,0x39,0xCA,0x72,0x04,0xB0,
1170                 0x6E,0xDA,0xC0,0x61,0xE6,0x7A,0x77,0x25,0xE8,0x3B,0xB9,0x5F,
1171                 0x9A,0xB6,0xB5,0xFE,0x99,0x0B,0xA1,0x93,0x4E,0x35,0x33,0xB8,
1172                 0xE1,0xF1,0x13,0x4F,0x59,0x1A,0xD2,0x57,0xC0,0x26,0x21,0x33,
1173                 0x02,0xC5,0xAE,0x23,
1174                 };
1175         static unsigned char dh512_g[]={
1176                 0x02,
1177                 };
1178         DH *dh;
1179
1180         if ((dh=DH_new()) == NULL) return(NULL);
1181         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
1182         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
1183         if ((dh->p == NULL) || (dh->g == NULL))
1184                 { DH_free(dh); return(NULL); }
1185         return(dh);
1186         }
1187
1188 DH *get_dh1024()
1189         {
1190         static unsigned char dh1024_p[]={
1191                 0xF8,0x81,0x89,0x7D,0x14,0x24,0xC5,0xD1,0xE6,0xF7,0xBF,0x3A,
1192                 0xE4,0x90,0xF4,0xFC,0x73,0xFB,0x34,0xB5,0xFA,0x4C,0x56,0xA2,
1193                 0xEA,0xA7,0xE9,0xC0,0xC0,0xCE,0x89,0xE1,0xFA,0x63,0x3F,0xB0,
1194                 0x6B,0x32,0x66,0xF1,0xD1,0x7B,0xB0,0x00,0x8F,0xCA,0x87,0xC2,
1195                 0xAE,0x98,0x89,0x26,0x17,0xC2,0x05,0xD2,0xEC,0x08,0xD0,0x8C,
1196                 0xFF,0x17,0x52,0x8C,0xC5,0x07,0x93,0x03,0xB1,0xF6,0x2F,0xB8,
1197                 0x1C,0x52,0x47,0x27,0x1B,0xDB,0xD1,0x8D,0x9D,0x69,0x1D,0x52,
1198                 0x4B,0x32,0x81,0xAA,0x7F,0x00,0xC8,0xDC,0xE6,0xD9,0xCC,0xC1,
1199                 0x11,0x2D,0x37,0x34,0x6C,0xEA,0x02,0x97,0x4B,0x0E,0xBB,0xB1,
1200                 0x71,0x33,0x09,0x15,0xFD,0xDD,0x23,0x87,0x07,0x5E,0x89,0xAB,
1201                 0x6B,0x7C,0x5F,0xEC,0xA6,0x24,0xDC,0x53,
1202                 };
1203         static unsigned char dh1024_g[]={
1204                 0x02,
1205                 };
1206         DH *dh;
1207
1208         if ((dh=DH_new()) == NULL) return(NULL);
1209         dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
1210         dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
1211         if ((dh->p == NULL) || (dh->g == NULL))
1212                 { DH_free(dh); return(NULL); }
1213         return(dh);
1214         }
1215
1216 DH *get_dh1024dsa()
1217         {
1218         static unsigned char dh1024_p[]={
1219                 0xC8,0x00,0xF7,0x08,0x07,0x89,0x4D,0x90,0x53,0xF3,0xD5,0x00,
1220                 0x21,0x1B,0xF7,0x31,0xA6,0xA2,0xDA,0x23,0x9A,0xC7,0x87,0x19,
1221                 0x3B,0x47,0xB6,0x8C,0x04,0x6F,0xFF,0xC6,0x9B,0xB8,0x65,0xD2,
1222                 0xC2,0x5F,0x31,0x83,0x4A,0xA7,0x5F,0x2F,0x88,0x38,0xB6,0x55,
1223                 0xCF,0xD9,0x87,0x6D,0x6F,0x9F,0xDA,0xAC,0xA6,0x48,0xAF,0xFC,
1224                 0x33,0x84,0x37,0x5B,0x82,0x4A,0x31,0x5D,0xE7,0xBD,0x52,0x97,
1225                 0xA1,0x77,0xBF,0x10,0x9E,0x37,0xEA,0x64,0xFA,0xCA,0x28,0x8D,
1226                 0x9D,0x3B,0xD2,0x6E,0x09,0x5C,0x68,0xC7,0x45,0x90,0xFD,0xBB,
1227                 0x70,0xC9,0x3A,0xBB,0xDF,0xD4,0x21,0x0F,0xC4,0x6A,0x3C,0xF6,
1228                 0x61,0xCF,0x3F,0xD6,0x13,0xF1,0x5F,0xBC,0xCF,0xBC,0x26,0x9E,
1229                 0xBC,0x0B,0xBD,0xAB,0x5D,0xC9,0x54,0x39,
1230                 };
1231         static unsigned char dh1024_g[]={
1232                 0x3B,0x40,0x86,0xE7,0xF3,0x6C,0xDE,0x67,0x1C,0xCC,0x80,0x05,
1233                 0x5A,0xDF,0xFE,0xBD,0x20,0x27,0x74,0x6C,0x24,0xC9,0x03,0xF3,
1234                 0xE1,0x8D,0xC3,0x7D,0x98,0x27,0x40,0x08,0xB8,0x8C,0x6A,0xE9,
1235                 0xBB,0x1A,0x3A,0xD6,0x86,0x83,0x5E,0x72,0x41,0xCE,0x85,0x3C,
1236                 0xD2,0xB3,0xFC,0x13,0xCE,0x37,0x81,0x9E,0x4C,0x1C,0x7B,0x65,
1237                 0xD3,0xE6,0xA6,0x00,0xF5,0x5A,0x95,0x43,0x5E,0x81,0xCF,0x60,
1238                 0xA2,0x23,0xFC,0x36,0xA7,0x5D,0x7A,0x4C,0x06,0x91,0x6E,0xF6,
1239                 0x57,0xEE,0x36,0xCB,0x06,0xEA,0xF5,0x3D,0x95,0x49,0xCB,0xA7,
1240                 0xDD,0x81,0xDF,0x80,0x09,0x4A,0x97,0x4D,0xA8,0x22,0x72,0xA1,
1241                 0x7F,0xC4,0x70,0x56,0x70,0xE8,0x20,0x10,0x18,0x8F,0x2E,0x60,
1242                 0x07,0xE7,0x68,0x1A,0x82,0x5D,0x32,0xA2,
1243                 };
1244         DH *dh;
1245
1246         if ((dh=DH_new()) == NULL) return(NULL);
1247         dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
1248         dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
1249         if ((dh->p == NULL) || (dh->g == NULL))
1250                 { DH_free(dh); return(NULL); }
1251         dh->length = 160;
1252         return(dh);
1253         }
1254 #endif