Fix warning and make no-tlsext work.
[openssl.git] / apps / s_cb.c
1 /* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */
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) 1998-2006 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 #include <stdio.h>
113 #include <stdlib.h>
114 #define USE_SOCKETS
115 #define NON_MAIN
116 #include "apps.h"
117 #undef NON_MAIN
118 #undef USE_SOCKETS
119 #include <openssl/err.h>
120 #include <openssl/x509.h>
121 #include <openssl/ssl.h>
122 #include "s_apps.h"
123
124 int verify_depth=0;
125 int verify_error=X509_V_OK;
126 int verify_return_error=0;
127
128 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
129         {
130         char buf[256];
131         X509 *err_cert;
132         int err,depth;
133
134         err_cert=X509_STORE_CTX_get_current_cert(ctx);
135         err=    X509_STORE_CTX_get_error(ctx);
136         depth=  X509_STORE_CTX_get_error_depth(ctx);
137
138         X509_NAME_oneline(X509_get_subject_name(err_cert),buf,sizeof buf);
139         BIO_printf(bio_err,"depth=%d %s\n",depth,buf);
140         if (!ok)
141                 {
142                 BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
143                         X509_verify_cert_error_string(err));
144                 if (verify_depth >= depth)
145                         {
146                         if (!verify_return_error)
147                                 ok=1;
148                         verify_error=X509_V_OK;
149                         }
150                 else
151                         {
152                         ok=0;
153                         verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
154                         }
155                 }
156         switch (ctx->error)
157                 {
158         case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
159                 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert),buf,sizeof buf);
160                 BIO_printf(bio_err,"issuer= %s\n",buf);
161                 break;
162         case X509_V_ERR_CERT_NOT_YET_VALID:
163         case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
164                 BIO_printf(bio_err,"notBefore=");
165                 ASN1_TIME_print(bio_err,X509_get_notBefore(ctx->current_cert));
166                 BIO_printf(bio_err,"\n");
167                 break;
168         case X509_V_ERR_CERT_HAS_EXPIRED:
169         case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
170                 BIO_printf(bio_err,"notAfter=");
171                 ASN1_TIME_print(bio_err,X509_get_notAfter(ctx->current_cert));
172                 BIO_printf(bio_err,"\n");
173                 break;
174                 }
175         BIO_printf(bio_err,"verify return:%d\n",ok);
176         return(ok);
177         }
178
179 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
180         {
181         if (cert_file != NULL)
182                 {
183                 /*
184                 SSL *ssl;
185                 X509 *x509;
186                 */
187
188                 if (SSL_CTX_use_certificate_file(ctx,cert_file,
189                         SSL_FILETYPE_PEM) <= 0)
190                         {
191                         BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
192                         ERR_print_errors(bio_err);
193                         return(0);
194                         }
195                 if (key_file == NULL) key_file=cert_file;
196                 if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
197                         SSL_FILETYPE_PEM) <= 0)
198                         {
199                         BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
200                         ERR_print_errors(bio_err);
201                         return(0);
202                         }
203
204                 /*
205                 In theory this is no longer needed 
206                 ssl=SSL_new(ctx);
207                 x509=SSL_get_certificate(ssl);
208
209                 if (x509 != NULL) {
210                         EVP_PKEY *pktmp;
211                         pktmp = X509_get_pubkey(x509);
212                         EVP_PKEY_copy_parameters(pktmp,
213                                                 SSL_get_privatekey(ssl));
214                         EVP_PKEY_free(pktmp);
215                 }
216                 SSL_free(ssl);
217                 */
218
219                 /* If we are using DSA, we can copy the parameters from
220                  * the private key */
221                 
222                 
223                 /* Now we know that a key and cert have been set against
224                  * the SSL context */
225                 if (!SSL_CTX_check_private_key(ctx))
226                         {
227                         BIO_printf(bio_err,"Private key does not match the certificate public key\n");
228                         return(0);
229                         }
230                 }
231         return(1);
232         }
233
234 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key)
235         {
236         if (cert ==  NULL)
237                 return 1;
238         if (SSL_CTX_use_certificate(ctx,cert) <= 0)
239                 {
240                 BIO_printf(bio_err,"error setting certificate\n");
241                 ERR_print_errors(bio_err);
242                 return 0;
243                 }
244         if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
245                 {
246                 BIO_printf(bio_err,"error setting private key\n");
247                 ERR_print_errors(bio_err);
248                 return 0;
249                 }
250
251                 
252                 /* Now we know that a key and cert have been set against
253                  * the SSL context */
254         if (!SSL_CTX_check_private_key(ctx))
255                 {
256                 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
257                 return 0;
258                 }
259         return 1;
260         }
261
262 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
263         int argi, long argl, long ret)
264         {
265         BIO *out;
266
267         out=(BIO *)BIO_get_callback_arg(bio);
268         if (out == NULL) return(ret);
269
270         if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
271                 {
272                 BIO_printf(out,"read from %p [%p] (%d bytes => %ld (0x%lX))\n",
273                         (void *)bio,argp,argi,ret,ret);
274                 BIO_dump(out,argp,(int)ret);
275                 return(ret);
276                 }
277         else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
278                 {
279                 BIO_printf(out,"write to %p [%p] (%d bytes => %ld (0x%lX))\n",
280                         (void *)bio,argp,argi,ret,ret);
281                 BIO_dump(out,argp,(int)ret);
282                 }
283         return(ret);
284         }
285
286 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
287         {
288         const char *str;
289         int w;
290
291         w=where& ~SSL_ST_MASK;
292
293         if (w & SSL_ST_CONNECT) str="SSL_connect";
294         else if (w & SSL_ST_ACCEPT) str="SSL_accept";
295         else str="undefined";
296
297         if (where & SSL_CB_LOOP)
298                 {
299                 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
300                 }
301         else if (where & SSL_CB_ALERT)
302                 {
303                 str=(where & SSL_CB_READ)?"read":"write";
304                 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
305                         str,
306                         SSL_alert_type_string_long(ret),
307                         SSL_alert_desc_string_long(ret));
308                 }
309         else if (where & SSL_CB_EXIT)
310                 {
311                 if (ret == 0)
312                         BIO_printf(bio_err,"%s:failed in %s\n",
313                                 str,SSL_state_string_long(s));
314                 else if (ret < 0)
315                         {
316                         BIO_printf(bio_err,"%s:error in %s\n",
317                                 str,SSL_state_string_long(s));
318                         }
319                 }
320         }
321
322
323 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
324         {
325         BIO *bio = arg;
326         const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
327         
328         str_write_p = write_p ? ">>>" : "<<<";
329
330         switch (version)
331                 {
332         case SSL2_VERSION:
333                 str_version = "SSL 2.0";
334                 break;
335         case SSL3_VERSION:
336                 str_version = "SSL 3.0 ";
337                 break;
338         case TLS1_VERSION:
339                 str_version = "TLS 1.0 ";
340                 break;
341         default:
342                 str_version = "???";
343                 }
344
345         if (version == SSL2_VERSION)
346                 {
347                 str_details1 = "???";
348
349                 if (len > 0)
350                         {
351                         switch (((const unsigned char*)buf)[0])
352                                 {
353                                 case 0:
354                                         str_details1 = ", ERROR:";
355                                         str_details2 = " ???";
356                                         if (len >= 3)
357                                                 {
358                                                 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
359                                                 
360                                                 switch (err)
361                                                         {
362                                                 case 0x0001:
363                                                         str_details2 = " NO-CIPHER-ERROR";
364                                                         break;
365                                                 case 0x0002:
366                                                         str_details2 = " NO-CERTIFICATE-ERROR";
367                                                         break;
368                                                 case 0x0004:
369                                                         str_details2 = " BAD-CERTIFICATE-ERROR";
370                                                         break;
371                                                 case 0x0006:
372                                                         str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
373                                                         break;
374                                                         }
375                                                 }
376
377                                         break;
378                                 case 1:
379                                         str_details1 = ", CLIENT-HELLO";
380                                         break;
381                                 case 2:
382                                         str_details1 = ", CLIENT-MASTER-KEY";
383                                         break;
384                                 case 3:
385                                         str_details1 = ", CLIENT-FINISHED";
386                                         break;
387                                 case 4:
388                                         str_details1 = ", SERVER-HELLO";
389                                         break;
390                                 case 5:
391                                         str_details1 = ", SERVER-VERIFY";
392                                         break;
393                                 case 6:
394                                         str_details1 = ", SERVER-FINISHED";
395                                         break;
396                                 case 7:
397                                         str_details1 = ", REQUEST-CERTIFICATE";
398                                         break;
399                                 case 8:
400                                         str_details1 = ", CLIENT-CERTIFICATE";
401                                         break;
402                                 }
403                         }
404                 }
405
406         if (version == SSL3_VERSION || version == TLS1_VERSION)
407                 {
408                 switch (content_type)
409                         {
410                 case 20:
411                         str_content_type = "ChangeCipherSpec";
412                         break;
413                 case 21:
414                         str_content_type = "Alert";
415                         break;
416                 case 22:
417                         str_content_type = "Handshake";
418                         break;
419                         }
420
421                 if (content_type == 21) /* Alert */
422                         {
423                         str_details1 = ", ???";
424                         
425                         if (len == 2)
426                                 {
427                                 switch (((const unsigned char*)buf)[0])
428                                         {
429                                 case 1:
430                                         str_details1 = ", warning";
431                                         break;
432                                 case 2:
433                                         str_details1 = ", fatal";
434                                         break;
435                                         }
436
437                                 str_details2 = " ???";
438                                 switch (((const unsigned char*)buf)[1])
439                                         {
440                                 case 0:
441                                         str_details2 = " close_notify";
442                                         break;
443                                 case 10:
444                                         str_details2 = " unexpected_message";
445                                         break;
446                                 case 20:
447                                         str_details2 = " bad_record_mac";
448                                         break;
449                                 case 21:
450                                         str_details2 = " decryption_failed";
451                                         break;
452                                 case 22:
453                                         str_details2 = " record_overflow";
454                                         break;
455                                 case 30:
456                                         str_details2 = " decompression_failure";
457                                         break;
458                                 case 40:
459                                         str_details2 = " handshake_failure";
460                                         break;
461                                 case 42:
462                                         str_details2 = " bad_certificate";
463                                         break;
464                                 case 43:
465                                         str_details2 = " unsupported_certificate";
466                                         break;
467                                 case 44:
468                                         str_details2 = " certificate_revoked";
469                                         break;
470                                 case 45:
471                                         str_details2 = " certificate_expired";
472                                         break;
473                                 case 46:
474                                         str_details2 = " certificate_unknown";
475                                         break;
476                                 case 47:
477                                         str_details2 = " illegal_parameter";
478                                         break;
479                                 case 48:
480                                         str_details2 = " unknown_ca";
481                                         break;
482                                 case 49:
483                                         str_details2 = " access_denied";
484                                         break;
485                                 case 50:
486                                         str_details2 = " decode_error";
487                                         break;
488                                 case 51:
489                                         str_details2 = " decrypt_error";
490                                         break;
491                                 case 60:
492                                         str_details2 = " export_restriction";
493                                         break;
494                                 case 70:
495                                         str_details2 = " protocol_version";
496                                         break;
497                                 case 71:
498                                         str_details2 = " insufficient_security";
499                                         break;
500                                 case 80:
501                                         str_details2 = " internal_error";
502                                         break;
503                                 case 90:
504                                         str_details2 = " user_canceled";
505                                         break;
506                                 case 100:
507                                         str_details2 = " no_renegotiation";
508                                         break;
509                                 case 110:
510                                         str_details2 = " unsupported_extension";
511                                         break;
512                                 case 111:
513                                         str_details2 = " certificate_unobtainable";
514                                         break;
515                                 case 112:
516                                         str_details2 = " unrecognized_name";
517                                         break;
518                                 case 113:
519                                         str_details2 = " bad_certificate_status_response";
520                                         break;
521                                 case 114:
522                                         str_details2 = " bad_certificate_hash_value";
523                                         break;
524                                         }
525                                 }
526                         }
527                 
528                 if (content_type == 22) /* Handshake */
529                         {
530                         str_details1 = "???";
531
532                         if (len > 0)
533                                 {
534                                 switch (((const unsigned char*)buf)[0])
535                                         {
536                                 case 0:
537                                         str_details1 = ", HelloRequest";
538                                         break;
539                                 case 1:
540                                         str_details1 = ", ClientHello";
541                                         break;
542                                 case 2:
543                                         str_details1 = ", ServerHello";
544                                         break;
545                                 case 11:
546                                         str_details1 = ", Certificate";
547                                         break;
548                                 case 12:
549                                         str_details1 = ", ServerKeyExchange";
550                                         break;
551                                 case 13:
552                                         str_details1 = ", CertificateRequest";
553                                         break;
554                                 case 14:
555                                         str_details1 = ", ServerHelloDone";
556                                         break;
557                                 case 15:
558                                         str_details1 = ", CertificateVerify";
559                                         break;
560                                 case 16:
561                                         str_details1 = ", ClientKeyExchange";
562                                         break;
563                                 case 20:
564                                         str_details1 = ", Finished";
565                                         break;
566                                         }
567                                 }
568                         }
569                 }
570
571         BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2);
572
573         if (len > 0)
574                 {
575                 size_t num, i;
576                 
577                 BIO_printf(bio, "   ");
578                 num = len;
579 #if 0
580                 if (num > 16)
581                         num = 16;
582 #endif
583                 for (i = 0; i < num; i++)
584                         {
585                         if (i % 16 == 0 && i > 0)
586                                 BIO_printf(bio, "\n   ");
587                         BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
588                         }
589                 if (i < len)
590                         BIO_printf(bio, " ...");
591                 BIO_printf(bio, "\n");
592                 }
593         (void)BIO_flush(bio);
594         }
595
596 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
597                                         unsigned char *data, int len,
598                                         void *arg)
599         {
600         BIO *bio = arg;
601         char *extname;
602
603         switch(type)
604                 {
605                 case TLSEXT_TYPE_server_name:
606                 extname = "server name";
607                 break;
608
609                 case TLSEXT_TYPE_max_fragment_length:
610                 extname = "max fragment length";
611                 break;
612
613                 case TLSEXT_TYPE_client_certificate_url:
614                 extname = "client certificate URL";
615                 break;
616
617                 case TLSEXT_TYPE_trusted_ca_keys:
618                 extname = "trusted CA keys";
619                 break;
620
621                 case TLSEXT_TYPE_truncated_hmac:
622                 extname = "truncated HMAC";
623                 break;
624
625                 case TLSEXT_TYPE_status_request:
626                 extname = "status request";
627                 break;
628
629                 case TLSEXT_TYPE_elliptic_curves:
630                 extname = "elliptic curves";
631                 break;
632
633                 case TLSEXT_TYPE_ec_point_formats:
634                 extname = "EC point formats";
635                 break;
636
637                 case TLSEXT_TYPE_session_ticket:
638                 extname = "server ticket";
639                 break;
640
641
642                 default:
643                 extname = "unknown";
644                 break;
645
646                 }
647         
648         BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
649                         client_server ? "server": "client",
650                         extname, type, len);
651         BIO_dump(bio, (char *)data, len);
652         (void)BIO_flush(bio);
653         }