]> git.ipfire.org Git - thirdparty/openssl.git/blob - apps/s_server.c
projects / thirdparty / openssl.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Security fixes brought forward from 0.9.7.
[thirdparty/openssl.git] / apps / s_server.c
1 /* apps/s_server.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) 1998-2001 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 #include <assert.h>
118 #include <stdio.h>
119 #include <stdlib.h>
120 #include <string.h>
121 #include <sys/types.h>
122 #include <sys/stat.h>
123 #include <openssl/e_os2.h>
124 #ifdef OPENSSL_NO_STDIO
125 #define APPS_WIN16
126 #endif
127
128 /* With IPv6, it looks like Digital has mixed up the proper order of
129 recursive header file inclusion, resulting in the compiler complaining
130 that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
131 is needed to have fileno() declared correctly... So let's define u_int */
132 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
133 #define __U_INT
134 typedef unsigned int u_int;
135 #endif
136
137 #include <openssl/lhash.h>
138 #include <openssl/bn.h>
139 #define USE_SOCKETS
140 #include "apps.h"
141 #include <openssl/err.h>
142 #include <openssl/pem.h>
143 #include <openssl/x509.h>
144 #include <openssl/ssl.h>
145 #include <openssl/rand.h>
146 #include "s_apps.h"
147
148 #ifdef OPENSSL_SYS_WINDOWS
149 #include <conio.h>
150 #endif
151
152 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
153 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
154 #undef FIONBIO
155 #endif
156
157 #ifndef OPENSSL_NO_RSA
158 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
159 #endif
160 static int sv_body(char *hostname, int s, unsigned char *context);
161 static int www_body(char *hostname, int s, unsigned char *context);
162 static void close_accept_socket(void );
163 static void sv_usage(void);
164 static int init_ssl_connection(SSL *s);
165 static void print_stats(BIO *bp,SSL_CTX *ctx);
166 static int generate_session_id(const SSL *ssl, unsigned char *id,
167 unsigned int *id_len);
168 #ifndef OPENSSL_NO_DH
169 static DH *load_dh_param(char *dhfile);
170 static DH *get_dh512(void);
171 #endif
172
173 #ifdef MONOLITH
174 static void s_server_init(void);
175 #endif
176
177 #ifndef S_ISDIR
178 # if defined(_S_IFMT) && defined(_S_IFDIR)
179 # define S_ISDIR(a) (((a) & _S_IFMT) == _S_IFDIR)
180 # else
181 # define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR)
182 # endif
183 #endif
184
185 #ifndef OPENSSL_NO_DH
186 static unsigned char dh512_p[]={
187 0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
188 0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
189 0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
190 0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
191 0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
192 0x47,0x74,0xE8,0x33,
193 };
194 static unsigned char dh512_g[]={
195 0x02,
196 };
197
198 static DH *get_dh512(void)
199 {
200 DH *dh=NULL;
201
202 if ((dh=DH_new()) == NULL) return(NULL);
203 dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
204 dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
205 if ((dh->p == NULL) || (dh->g == NULL))
206 return(NULL);
207 return(dh);
208 }
209 #endif
210
211
212 /* static int load_CA(SSL_CTX *ctx, char *file);*/
213
214 #undef BUFSIZZ
215 #define BUFSIZZ 16*1024
216 static int bufsize=BUFSIZZ;
217 static int accept_socket= -1;
218
219 #define TEST_CERT "server.pem"
220 #undef PROG
221 #define PROG s_server_main
222
223 extern int verify_depth;
224
225 static char *cipher=NULL;
226 static int s_server_verify=SSL_VERIFY_NONE;
227 static int s_server_session_id_context = 1; /* anything will do */
228 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
229 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
230 #ifdef FIONBIO
231 static int s_nbio=0;
232 #endif
233 static int s_nbio_test=0;
234 int s_crlf=0;
235 static SSL_CTX *ctx=NULL;
236 static int www=0;
237
238 static BIO *bio_s_out=NULL;
239 static int s_debug=0;
240 static int s_msg=0;
241 static int s_quiet=0;
242
243 static int hack=0;
244 static char *engine_id=NULL;
245 static const char *session_id_prefix=NULL;
246
247 #ifdef MONOLITH
248 static void s_server_init(void)
249 {
250 accept_socket=-1;
251 cipher=NULL;
252 s_server_verify=SSL_VERIFY_NONE;
253 s_dcert_file=NULL;
254 s_dkey_file=NULL;
255 s_cert_file=TEST_CERT;
256 s_key_file=NULL;
257 #ifdef FIONBIO
258 s_nbio=0;
259 #endif
260 s_nbio_test=0;
261 ctx=NULL;
262 www=0;
263
264 bio_s_out=NULL;
265 s_debug=0;
266 s_msg=0;
267 s_quiet=0;
268 hack=0;
269 engine_id=NULL;
270 }
271 #endif
272
273 static void sv_usage(void)
274 {
275 BIO_printf(bio_err,"usage: s_server [args ...]\n");
276 BIO_printf(bio_err,"\n");
277 BIO_printf(bio_err," -accept arg - port to accept on (default is %d)\n",PORT);
278 BIO_printf(bio_err," -context arg - set session ID context\n");
279 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
280 BIO_printf(bio_err," -Verify arg - turn on peer certificate verification, must have a cert.\n");
281 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n");
282 BIO_printf(bio_err," (default is %s)\n",TEST_CERT);
283 BIO_printf(bio_err," -key arg - Private Key file to use, PEM format assumed, in cert file if\n");
284 BIO_printf(bio_err," not specified (default is %s)\n",TEST_CERT);
285 BIO_printf(bio_err," -dcert arg - second certificate file to use (usually for DSA)\n");
286 BIO_printf(bio_err," -dkey arg - second private key file to use (usually for DSA)\n");
287 BIO_printf(bio_err," -dhparam arg - DH parameter file to use, in cert file if not specified\n");
288 BIO_printf(bio_err," or a default set of parameters is used\n");
289 #ifndef OPENSSL_NO_ECDH
290 BIO_printf(bio_err," -named_curve arg - Elliptic curve name to use for ephemeral ECDH keys.\n" \
291 " Use \"openssl ecparam -list_curves\" for all names\n" \
292 " (default is sect163r2).\n");
293 #endif
294 #ifdef FIONBIO
295 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
296 #endif
297 BIO_printf(bio_err," -nbio_test - test with the non-blocking test bio\n");
298 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n");
299 BIO_printf(bio_err," -debug - Print more output\n");
300 BIO_printf(bio_err," -msg - Show protocol messages\n");
301 BIO_printf(bio_err," -state - Print the SSL states\n");
302 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
303 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
304 BIO_printf(bio_err," -nocert - Don't use any certificates (Anon-DH)\n");
305 BIO_printf(bio_err," -cipher arg - play with 'openssl ciphers' to see what goes here\n");
306 BIO_printf(bio_err," -serverpref - Use server's cipher preferences\n");
307 BIO_printf(bio_err," -quiet - No server output\n");
308 BIO_printf(bio_err," -no_tmp_rsa - Do not generate a tmp RSA key\n");
309 BIO_printf(bio_err," -ssl2 - Just talk SSLv2\n");
310 BIO_printf(bio_err," -ssl3 - Just talk SSLv3\n");
311 BIO_printf(bio_err," -tls1 - Just talk TLSv1\n");
312 BIO_printf(bio_err," -no_ssl2 - Just disable SSLv2\n");
313 BIO_printf(bio_err," -no_ssl3 - Just disable SSLv3\n");
314 BIO_printf(bio_err," -no_tls1 - Just disable TLSv1\n");
315 #ifndef OPENSSL_NO_DH
316 BIO_printf(bio_err," -no_dhe - Disable ephemeral DH\n");
317 #endif
318 #ifndef OPENSSL_NO_ECDH
319 BIO_printf(bio_err," -no_ecdhe - Disable ephemeral ECDH\n");
320 #endif
321 BIO_printf(bio_err," -bugs - Turn on SSL bug compatibility\n");
322 BIO_printf(bio_err," -www - Respond to a 'GET /' with a status page\n");
323 BIO_printf(bio_err," -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
324 BIO_printf(bio_err," -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
325 BIO_printf(bio_err," with the assumption it contains a complete HTTP response.\n");
326 BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n");
327 BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
328 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
329 }
330
331 static int local_argc=0;
332 static char **local_argv;
333
334 #ifdef CHARSET_EBCDIC
335 static int ebcdic_new(BIO *bi);
336 static int ebcdic_free(BIO *a);
337 static int ebcdic_read(BIO *b, char *out, int outl);
338 static int ebcdic_write(BIO *b, const char *in, int inl);
339 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
340 static int ebcdic_gets(BIO *bp, char *buf, int size);
341 static int ebcdic_puts(BIO *bp, const char *str);
342
343 #define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
344 static BIO_METHOD methods_ebcdic=
345 {
346 BIO_TYPE_EBCDIC_FILTER,
347 "EBCDIC/ASCII filter",
348 ebcdic_write,
349 ebcdic_read,
350 ebcdic_puts,
351 ebcdic_gets,
352 ebcdic_ctrl,
353 ebcdic_new,
354 ebcdic_free,
355 };
356
357 typedef struct
358 {
359 size_t alloced;
360 char buff[1];
361 } EBCDIC_OUTBUFF;
362
363 BIO_METHOD *BIO_f_ebcdic_filter()
364 {
365 return(&methods_ebcdic);
366 }
367
368 static int ebcdic_new(BIO *bi)
369 {
370 EBCDIC_OUTBUFF *wbuf;
371
372 wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
373 wbuf->alloced = 1024;
374 wbuf->buff[0] = '\0';
375
376 bi->ptr=(char *)wbuf;
377 bi->init=1;
378 bi->flags=0;
379 return(1);
380 }
381
382 static int ebcdic_free(BIO *a)
383 {
384 if (a == NULL) return(0);
385 if (a->ptr != NULL)
386 OPENSSL_free(a->ptr);
387 a->ptr=NULL;
388 a->init=0;
389 a->flags=0;
390 return(1);
391 }
392
393 static int ebcdic_read(BIO *b, char *out, int outl)
394 {
395 int ret=0;
396
397 if (out == NULL || outl == 0) return(0);
398 if (b->next_bio == NULL) return(0);
399
400 ret=BIO_read(b->next_bio,out,outl);
401 if (ret > 0)
402 ascii2ebcdic(out,out,ret);
403 return(ret);
404 }
405
406 static int ebcdic_write(BIO *b, const char *in, int inl)
407 {
408 EBCDIC_OUTBUFF *wbuf;
409 int ret=0;
410 int num;
411 unsigned char n;
412
413 if ((in == NULL) || (inl <= 0)) return(0);
414 if (b->next_bio == NULL) return(0);
415
416 wbuf=(EBCDIC_OUTBUFF *)b->ptr;
417
418 if (inl > (num = wbuf->alloced))
419 {
420 num = num + num; /* double the size */
421 if (num < inl)
422 num = inl;
423 OPENSSL_free(wbuf);
424 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
425
426 wbuf->alloced = num;
427 wbuf->buff[0] = '\0';
428
429 b->ptr=(char *)wbuf;
430 }
431
432 ebcdic2ascii(wbuf->buff, in, inl);
433
434 ret=BIO_write(b->next_bio, wbuf->buff, inl);
435
436 return(ret);
437 }
438
439 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
440 {
441 long ret;
442
443 if (b->next_bio == NULL) return(0);
444 switch (cmd)
445 {
446 case BIO_CTRL_DUP:
447 ret=0L;
448 break;
449 default:
450 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
451 break;
452 }
453 return(ret);
454 }
455
456 static int ebcdic_gets(BIO *bp, char *buf, int size)
457 {
458 int i, ret=0;
459 if (bp->next_bio == NULL) return(0);
460 /* return(BIO_gets(bp->next_bio,buf,size));*/
461 for (i=0; i<size-1; ++i)
462 {
463 ret = ebcdic_read(bp,&buf[i],1);
464 if (ret <= 0)
465 break;
466 else if (buf[i] == '\n')
467 {
468 ++i;
469 break;
470 }
471 }
472 if (i < size)
473 buf[i] = '\0';
474 return (ret < 0 && i == 0) ? ret : i;
475 }
476
477 static int ebcdic_puts(BIO *bp, const char *str)
478 {
479 if (bp->next_bio == NULL) return(0);
480 return ebcdic_write(bp, str, strlen(str));
481 }
482 #endif
483
484 int MAIN(int, char **);
485
486 int MAIN(int argc, char *argv[])
487 {
488 X509_STORE *store = NULL;
489 int vflags = 0;
490 short port=PORT;
491 char *CApath=NULL,*CAfile=NULL;
492 char *context = NULL;
493 char *dhfile = NULL;
494 char *named_curve = NULL;
495 int badop=0,bugs=0;
496 int ret=1;
497 int off=0;
498 int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
499 int state=0;
500 SSL_METHOD *meth=NULL;
501 ENGINE *e=NULL;
502 char *inrand=NULL;
503
504 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
505 meth=SSLv23_server_method();
506 #elif !defined(OPENSSL_NO_SSL3)
507 meth=SSLv3_server_method();
508 #elif !defined(OPENSSL_NO_SSL2)
509 meth=SSLv2_server_method();
510 #endif
511
512 local_argc=argc;
513 local_argv=argv;
514
515 apps_startup();
516 #ifdef MONOLITH
517 s_server_init();
518 #endif
519
520 if (bio_err == NULL)
521 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
522
523 if (!load_config(bio_err, NULL))
524 goto end;
525
526 verify_depth=0;
527 #ifdef FIONBIO
528 s_nbio=0;
529 #endif
530 s_nbio_test=0;
531
532 argc--;
533 argv++;
534
535 while (argc >= 1)
536 {
537 if ((strcmp(*argv,"-port") == 0) ||
538 (strcmp(*argv,"-accept") == 0))
539 {
540 if (--argc < 1) goto bad;
541 if (!extract_port(*(++argv),&port))
542 goto bad;
543 }
544 else if (strcmp(*argv,"-verify") == 0)
545 {
546 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
547 if (--argc < 1) goto bad;
548 verify_depth=atoi(*(++argv));
549 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
550 }
551 else if (strcmp(*argv,"-Verify") == 0)
552 {
553 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
554 SSL_VERIFY_CLIENT_ONCE;
555 if (--argc < 1) goto bad;
556 verify_depth=atoi(*(++argv));
557 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
558 }
559 else if (strcmp(*argv,"-context") == 0)
560 {
561 if (--argc < 1) goto bad;
562 context= *(++argv);
563 }
564 else if (strcmp(*argv,"-cert") == 0)
565 {
566 if (--argc < 1) goto bad;
567 s_cert_file= *(++argv);
568 }
569 else if (strcmp(*argv,"-key") == 0)
570 {
571 if (--argc < 1) goto bad;
572 s_key_file= *(++argv);
573 }
574 else if (strcmp(*argv,"-dhparam") == 0)
575 {
576 if (--argc < 1) goto bad;
577 dhfile = *(++argv);
578 }
579 #ifndef OPENSSL_NO_ECDH
580 else if (strcmp(*argv,"-named_curve") == 0)
581 {
582 if (--argc < 1) goto bad;
583 named_curve = *(++argv);
584 }
585 #endif
586 else if (strcmp(*argv,"-dcert") == 0)
587 {
588 if (--argc < 1) goto bad;
589 s_dcert_file= *(++argv);
590 }
591 else if (strcmp(*argv,"-dkey") == 0)
592 {
593 if (--argc < 1) goto bad;
594 s_dkey_file= *(++argv);
595 }
596 else if (strcmp(*argv,"-nocert") == 0)
597 {
598 nocert=1;
599 }
600 else if (strcmp(*argv,"-CApath") == 0)
601 {
602 if (--argc < 1) goto bad;
603 CApath= *(++argv);
604 }
605 else if (strcmp(*argv,"-crl_check") == 0)
606 {
607 vflags |= X509_V_FLAG_CRL_CHECK;
608 }
609 else if (strcmp(*argv,"-crl_check") == 0)
610 {
611 vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
612 }
613 else if (strcmp(*argv,"-serverpref") == 0)
614 { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
615 else if (strcmp(*argv,"-cipher") == 0)
616 {
617 if (--argc < 1) goto bad;
618 cipher= *(++argv);
619 }
620 else if (strcmp(*argv,"-CAfile") == 0)
621 {
622 if (--argc < 1) goto bad;
623 CAfile= *(++argv);
624 }
625 #ifdef FIONBIO
626 else if (strcmp(*argv,"-nbio") == 0)
627 { s_nbio=1; }
628 #endif
629 else if (strcmp(*argv,"-nbio_test") == 0)
630 {
631 #ifdef FIONBIO
632 s_nbio=1;
633 #endif
634 s_nbio_test=1;
635 }
636 else if (strcmp(*argv,"-debug") == 0)
637 { s_debug=1; }
638 else if (strcmp(*argv,"-msg") == 0)
639 { s_msg=1; }
640 else if (strcmp(*argv,"-hack") == 0)
641 { hack=1; }
642 else if (strcmp(*argv,"-state") == 0)
643 { state=1; }
644 else if (strcmp(*argv,"-crlf") == 0)
645 { s_crlf=1; }
646 else if (strcmp(*argv,"-quiet") == 0)
647 { s_quiet=1; }
648 else if (strcmp(*argv,"-bugs") == 0)
649 { bugs=1; }
650 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
651 { no_tmp_rsa=1; }
652 else if (strcmp(*argv,"-no_dhe") == 0)
653 { no_dhe=1; }
654 else if (strcmp(*argv,"-no_ecdhe") == 0)
655 { no_ecdhe=1; }
656 else if (strcmp(*argv,"-www") == 0)
657 { www=1; }
658 else if (strcmp(*argv,"-WWW") == 0)
659 { www=2; }
660 else if (strcmp(*argv,"-HTTP") == 0)
661 { www=3; }
662 else if (strcmp(*argv,"-no_ssl2") == 0)
663 { off|=SSL_OP_NO_SSLv2; }
664 else if (strcmp(*argv,"-no_ssl3") == 0)
665 { off|=SSL_OP_NO_SSLv3; }
666 else if (strcmp(*argv,"-no_tls1") == 0)
667 { off|=SSL_OP_NO_TLSv1; }
668 #ifndef OPENSSL_NO_SSL2
669 else if (strcmp(*argv,"-ssl2") == 0)
670 { meth=SSLv2_server_method(); }
671 #endif
672 #ifndef OPENSSL_NO_SSL3
673 else if (strcmp(*argv,"-ssl3") == 0)
674 { meth=SSLv3_server_method(); }
675 #endif
676 #ifndef OPENSSL_NO_TLS1
677 else if (strcmp(*argv,"-tls1") == 0)
678 { meth=TLSv1_server_method(); }
679 #endif
680 else if (strcmp(*argv, "-id_prefix") == 0)
681 {
682 if (--argc < 1) goto bad;
683 session_id_prefix = *(++argv);
684 }
685 else if (strcmp(*argv,"-engine") == 0)
686 {
687 if (--argc < 1) goto bad;
688 engine_id= *(++argv);
689 }
690 else if (strcmp(*argv,"-rand") == 0)
691 {
692 if (--argc < 1) goto bad;
693 inrand= *(++argv);
694 }
695 else
696 {
697 BIO_printf(bio_err,"unknown option %s\n",*argv);
698 badop=1;
699 break;
700 }
701 argc--;
702 argv++;
703 }
704 if (badop)
705 {
706 bad:
707 sv_usage();
708 goto end;
709 }
710
711 SSL_load_error_strings();
712 OpenSSL_add_ssl_algorithms();
713
714 e = setup_engine(bio_err, engine_id, 1);
715
716 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
717 && !RAND_status())
718 {
719 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
720 }
721 if (inrand != NULL)
722 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
723 app_RAND_load_files(inrand));
724
725 if (bio_s_out == NULL)
726 {
727 if (s_quiet && !s_debug && !s_msg)
728 {
729 bio_s_out=BIO_new(BIO_s_null());
730 }
731 else
732 {
733 if (bio_s_out == NULL)
734 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
735 }
736 }
737
738 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
739 if (nocert)
740 #endif
741 {
742 s_cert_file=NULL;
743 s_key_file=NULL;
744 s_dcert_file=NULL;
745 s_dkey_file=NULL;
746 }
747
748 ctx=SSL_CTX_new(meth);
749 if (ctx == NULL)
750 {
751 ERR_print_errors(bio_err);
752 goto end;
753 }
754 if (session_id_prefix)
755 {
756 if(strlen(session_id_prefix) >= 32)
757 BIO_printf(bio_err,
758 "warning: id_prefix is too long, only one new session will be possible\n");
759 else if(strlen(session_id_prefix) >= 16)
760 BIO_printf(bio_err,
761 "warning: id_prefix is too long if you use SSLv2\n");
762 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
763 {
764 BIO_printf(bio_err,"error setting 'id_prefix'\n");
765 ERR_print_errors(bio_err);
766 goto end;
767 }
768 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
769 }
770 SSL_CTX_set_quiet_shutdown(ctx,1);
771 if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
772 if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
773 SSL_CTX_set_options(ctx,off);
774
775 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
776
777 SSL_CTX_sess_set_cache_size(ctx,128);
778
779 #if 0
780 if (cipher == NULL) cipher=getenv("SSL_CIPHER");
781 #endif
782
783 #if 0
784 if (s_cert_file == NULL)
785 {
786 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
787 goto end;
788 }
789 #endif
790
791 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
792 (!SSL_CTX_set_default_verify_paths(ctx)))
793 {
794 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
795 ERR_print_errors(bio_err);
796 /* goto end; */
797 }
798 store = SSL_CTX_get_cert_store(ctx);
799 X509_STORE_set_flags(store, vflags);
800
801 #ifndef OPENSSL_NO_DH
802 if (!no_dhe)
803 {
804 DH *dh=NULL;
805
806 if (dhfile)
807 dh = load_dh_param(dhfile);
808 else if (s_cert_file)
809 dh = load_dh_param(s_cert_file);
810
811 if (dh != NULL)
812 {
813 BIO_printf(bio_s_out,"Setting temp DH parameters\n");
814 }
815 else
816 {
817 BIO_printf(bio_s_out,"Using default temp DH parameters\n");
818 dh=get_dh512();
819 }
820 (void)BIO_flush(bio_s_out);
821
822 SSL_CTX_set_tmp_dh(ctx,dh);
823 DH_free(dh);
824 }
825 #endif
826
827 #ifndef OPENSSL_NO_ECDH
828 if (!no_ecdhe)
829 {
830 EC_KEY *ecdh=NULL;
831
832 ecdh = EC_KEY_new();
833 if (ecdh == NULL)
834 {
835 BIO_printf(bio_err,"Could not create ECDH struct.\n");
836 goto end;
837 }
838
839 if (named_curve)
840 {
841 int nid = OBJ_sn2nid(named_curve);
842
843 if (nid == 0)
844 {
845 BIO_printf(bio_err, "unknown curve name (%s)\n",
846 named_curve);
847 goto end;
848 }
849
850 ecdh->group = EC_GROUP_new_by_nid(nid);
851 if (ecdh->group == NULL)
852 {
853 BIO_printf(bio_err, "unable to create curve (%s)\n",
854 named_curve);
855 goto end;
856 }
857 }
858
859 if (ecdh->group != NULL)
860 {
861 BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
862 }
863 else
864 {
865 BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
866 ecdh->group=EC_GROUP_new_by_nid(NID_sect163r2);
867 if (ecdh->group == NULL)
868 {
869 BIO_printf(bio_err, "unable to create curve (sect163r2)\n");
870 goto end;
871 }
872 }
873 (void)BIO_flush(bio_s_out);
874
875 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
876 EC_KEY_free(ecdh);
877 }
878 #endif
879
880 if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
881 goto end;
882 if (s_dcert_file != NULL)
883 {
884 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
885 goto end;
886 }
887
888 #ifndef OPENSSL_NO_RSA
889 #if 1
890 if (!no_tmp_rsa)
891 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
892 #else
893 if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
894 {
895 RSA *rsa;
896
897 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
898 BIO_flush(bio_s_out);
899
900 rsa=RSA_generate_key(512,RSA_F4,NULL);
901
902 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
903 {
904 ERR_print_errors(bio_err);
905 goto end;
906 }
907 RSA_free(rsa);
908 BIO_printf(bio_s_out,"\n");
909 }
910 #endif
911 #endif
912
913 if (cipher != NULL)
914 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
915 BIO_printf(bio_err,"error setting cipher list\n");
916 ERR_print_errors(bio_err);
917 goto end;
918 }
919 SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
920 SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
921 sizeof s_server_session_id_context);
922
923 if (CAfile != NULL)
924 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
925
926 BIO_printf(bio_s_out,"ACCEPT\n");
927 if (www)
928 do_server(port,&accept_socket,www_body, context);
929 else
930 do_server(port,&accept_socket,sv_body, context);
931 print_stats(bio_s_out,ctx);
932 ret=0;
933 end:
934 if (ctx != NULL) SSL_CTX_free(ctx);
935 if (bio_s_out != NULL)
936 {
937 BIO_free(bio_s_out);
938 bio_s_out=NULL;
939 }
940 apps_shutdown();
941 EXIT(ret);
942 }
943
944 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
945 {
946 BIO_printf(bio,"%4ld items in the session cache\n",
947 SSL_CTX_sess_number(ssl_ctx));
948 BIO_printf(bio,"%4d client connects (SSL_connect())\n",
949 SSL_CTX_sess_connect(ssl_ctx));
950 BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
951 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
952 BIO_printf(bio,"%4d client connects that finished\n",
953 SSL_CTX_sess_connect_good(ssl_ctx));
954 BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
955 SSL_CTX_sess_accept(ssl_ctx));
956 BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
957 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
958 BIO_printf(bio,"%4d server accepts that finished\n",
959 SSL_CTX_sess_accept_good(ssl_ctx));
960 BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
961 BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
962 BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
963 BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
964 BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
965 SSL_CTX_sess_cache_full(ssl_ctx),
966 SSL_CTX_sess_get_cache_size(ssl_ctx));
967 }
968
969 static int sv_body(char *hostname, int s, unsigned char *context)
970 {
971 char *buf=NULL;
972 fd_set readfds;
973 int ret=1,width;
974 int k,i;
975 unsigned long l;
976 SSL *con=NULL;
977 BIO *sbio;
978 #ifdef OPENSSL_SYS_WINDOWS
979 struct timeval tv;
980 #endif
981
982 if ((buf=OPENSSL_malloc(bufsize)) == NULL)
983 {
984 BIO_printf(bio_err,"out of memory\n");
985 goto err;
986 }
987 #ifdef FIONBIO
988 if (s_nbio)
989 {
990 unsigned long sl=1;
991
992 if (!s_quiet)
993 BIO_printf(bio_err,"turning on non blocking io\n");
994 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
995 ERR_print_errors(bio_err);
996 }
997 #endif
998
999 if (con == NULL) {
1000 con=SSL_new(ctx);
1001 #ifndef OPENSSL_NO_KRB5
1002 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1003 {
1004 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1005 KRB5SVC);
1006 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1007 KRB5KEYTAB);
1008 }
1009 #endif /* OPENSSL_NO_KRB5 */
1010 if(context)
1011 SSL_set_session_id_context(con, context,
1012 strlen((char *)context));
1013 }
1014 SSL_clear(con);
1015
1016 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1017 if (s_nbio_test)
1018 {
1019 BIO *test;
1020
1021 test=BIO_new(BIO_f_nbio_test());
1022 sbio=BIO_push(test,sbio);
1023 }
1024 SSL_set_bio(con,sbio,sbio);
1025 SSL_set_accept_state(con);
1026 /* SSL_set_fd(con,s); */
1027
1028 if (s_debug)
1029 {
1030 con->debug=1;
1031 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1032 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1033 }
1034 if (s_msg)
1035 {
1036 SSL_set_msg_callback(con, msg_cb);
1037 SSL_set_msg_callback_arg(con, bio_s_out);
1038 }
1039
1040 width=s+1;
1041 for (;;)
1042 {
1043 int read_from_terminal;
1044 int read_from_sslcon;
1045
1046 read_from_terminal = 0;
1047 read_from_sslcon = SSL_pending(con);
1048
1049 if (!read_from_sslcon)
1050 {
1051 FD_ZERO(&readfds);
1052 #ifndef OPENSSL_SYS_WINDOWS
1053 FD_SET(fileno(stdin),&readfds);
1054 #endif
1055 FD_SET(s,&readfds);
1056 /* Note: under VMS with SOCKETSHR the second parameter is
1057 * currently of type (int *) whereas under other systems
1058 * it is (void *) if you don't have a cast it will choke
1059 * the compiler: if you do have a cast then you can either
1060 * go for (int *) or (void *).
1061 */
1062 #ifdef OPENSSL_SYS_WINDOWS
1063 /* Under Windows we can't select on stdin: only
1064 * on sockets. As a workaround we timeout the select every
1065 * second and check for any keypress. In a proper Windows
1066 * application we wouldn't do this because it is inefficient.
1067 */
1068 tv.tv_sec = 1;
1069 tv.tv_usec = 0;
1070 i=select(width,(void *)&readfds,NULL,NULL,&tv);
1071 if((i < 0) || (!i && !_kbhit() ) )continue;
1072 if(_kbhit())
1073 read_from_terminal = 1;
1074 #else
1075 i=select(width,(void *)&readfds,NULL,NULL,NULL);
1076 if (i <= 0) continue;
1077 if (FD_ISSET(fileno(stdin),&readfds))
1078 read_from_terminal = 1;
1079 #endif
1080 if (FD_ISSET(s,&readfds))
1081 read_from_sslcon = 1;
1082 }
1083 if (read_from_terminal)
1084 {
1085 if (s_crlf)
1086 {
1087 int j, lf_num;
1088
1089 i=read(fileno(stdin), buf, bufsize/2);
1090 lf_num = 0;
1091 /* both loops are skipped when i <= 0 */
1092 for (j = 0; j < i; j++)
1093 if (buf[j] == '\n')
1094 lf_num++;
1095 for (j = i-1; j >= 0; j--)
1096 {
1097 buf[j+lf_num] = buf[j];
1098 if (buf[j] == '\n')
1099 {
1100 lf_num--;
1101 i++;
1102 buf[j+lf_num] = '\r';
1103 }
1104 }
1105 assert(lf_num == 0);
1106 }
1107 else
1108 i=read(fileno(stdin),buf,bufsize);
1109 if (!s_quiet)
1110 {
1111 if ((i <= 0) || (buf[0] == 'Q'))
1112 {
1113 BIO_printf(bio_s_out,"DONE\n");
1114 SHUTDOWN(s);
1115 close_accept_socket();
1116 ret= -11;
1117 goto err;
1118 }
1119 if ((i <= 0) || (buf[0] == 'q'))
1120 {
1121 BIO_printf(bio_s_out,"DONE\n");
1122 SHUTDOWN(s);
1123 /* close_accept_socket();
1124 ret= -11;*/
1125 goto err;
1126 }
1127 if ((buf[0] == 'r') &&
1128 ((buf[1] == '\n') || (buf[1] == '\r')))
1129 {
1130 SSL_renegotiate(con);
1131 i=SSL_do_handshake(con);
1132 printf("SSL_do_handshake -> %d\n",i);
1133 i=0; /*13; */
1134 continue;
1135 /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1136 }
1137 if ((buf[0] == 'R') &&
1138 ((buf[1] == '\n') || (buf[1] == '\r')))
1139 {
1140 SSL_set_verify(con,
1141 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1142 SSL_renegotiate(con);
1143 i=SSL_do_handshake(con);
1144 printf("SSL_do_handshake -> %d\n",i);
1145 i=0; /* 13; */
1146 continue;
1147 /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1148 }
1149 if (buf[0] == 'P')
1150 {
1151 static char *str="Lets print some clear text\n";
1152 BIO_write(SSL_get_wbio(con),str,strlen(str));
1153 }
1154 if (buf[0] == 'S')
1155 {
1156 print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1157 }
1158 }
1159 #ifdef CHARSET_EBCDIC
1160 ebcdic2ascii(buf,buf,i);
1161 #endif
1162 l=k=0;
1163 for (;;)
1164 {
1165 /* should do a select for the write */
1166 #ifdef RENEG
1167 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1168 #endif
1169 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1170 switch (SSL_get_error(con,k))
1171 {
1172 case SSL_ERROR_NONE:
1173 break;
1174 case SSL_ERROR_WANT_WRITE:
1175 case SSL_ERROR_WANT_READ:
1176 case SSL_ERROR_WANT_X509_LOOKUP:
1177 BIO_printf(bio_s_out,"Write BLOCK\n");
1178 break;
1179 case SSL_ERROR_SYSCALL:
1180 case SSL_ERROR_SSL:
1181 BIO_printf(bio_s_out,"ERROR\n");
1182 ERR_print_errors(bio_err);
1183 ret=1;
1184 goto err;
1185 /* break; */
1186 case SSL_ERROR_ZERO_RETURN:
1187 BIO_printf(bio_s_out,"DONE\n");
1188 ret=1;
1189 goto err;
1190 }
1191 l+=k;
1192 i-=k;
1193 if (i <= 0) break;
1194 }
1195 }
1196 if (read_from_sslcon)
1197 {
1198 if (!SSL_is_init_finished(con))
1199 {
1200 i=init_ssl_connection(con);
1201
1202 if (i < 0)
1203 {
1204 ret=0;
1205 goto err;
1206 }
1207 else if (i == 0)
1208 {
1209 ret=1;
1210 goto err;
1211 }
1212 }
1213 else
1214 {
1215 again:
1216 i=SSL_read(con,(char *)buf,bufsize);
1217 switch (SSL_get_error(con,i))
1218 {
1219 case SSL_ERROR_NONE:
1220 #ifdef CHARSET_EBCDIC
1221 ascii2ebcdic(buf,buf,i);
1222 #endif
1223 write(fileno(stdout),buf,
1224 (unsigned int)i);
1225 if (SSL_pending(con)) goto again;
1226 break;
1227 case SSL_ERROR_WANT_WRITE:
1228 case SSL_ERROR_WANT_READ:
1229 case SSL_ERROR_WANT_X509_LOOKUP:
1230 BIO_printf(bio_s_out,"Read BLOCK\n");
1231 break;
1232 case SSL_ERROR_SYSCALL:
1233 case SSL_ERROR_SSL:
1234 BIO_printf(bio_s_out,"ERROR\n");
1235 ERR_print_errors(bio_err);
1236 ret=1;
1237 goto err;
1238 case SSL_ERROR_ZERO_RETURN:
1239 BIO_printf(bio_s_out,"DONE\n");
1240 ret=1;
1241 goto err;
1242 }
1243 }
1244 }
1245 }
1246 err:
1247 BIO_printf(bio_s_out,"shutting down SSL\n");
1248 #if 1
1249 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1250 #else
1251 SSL_shutdown(con);
1252 #endif
1253 if (con != NULL) SSL_free(con);
1254 BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1255 if (buf != NULL)
1256 {
1257 memset(buf,0,bufsize);
1258 OPENSSL_free(buf);
1259 }
1260 if (ret >= 0)
1261 BIO_printf(bio_s_out,"ACCEPT\n");
1262 return(ret);
1263 }
1264
1265 static void close_accept_socket(void)
1266 {
1267 BIO_printf(bio_err,"shutdown accept socket\n");
1268 if (accept_socket >= 0)
1269 {
1270 SHUTDOWN2(accept_socket);
1271 }
1272 }
1273
1274 static int init_ssl_connection(SSL *con)
1275 {
1276 int i;
1277 const char *str;
1278 X509 *peer;
1279 long verify_error;
1280 MS_STATIC char buf[BUFSIZ];
1281
1282 if ((i=SSL_accept(con)) <= 0)
1283 {
1284 if (BIO_sock_should_retry(i))
1285 {
1286 BIO_printf(bio_s_out,"DELAY\n");
1287 return(1);
1288 }
1289
1290 BIO_printf(bio_err,"ERROR\n");
1291 verify_error=SSL_get_verify_result(con);
1292 if (verify_error != X509_V_OK)
1293 {
1294 BIO_printf(bio_err,"verify error:%s\n",
1295 X509_verify_cert_error_string(verify_error));
1296 }
1297 else
1298 ERR_print_errors(bio_err);
1299 return(0);
1300 }
1301
1302 PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1303
1304 peer=SSL_get_peer_certificate(con);
1305 if (peer != NULL)
1306 {
1307 BIO_printf(bio_s_out,"Client certificate\n");
1308 PEM_write_bio_X509(bio_s_out,peer);
1309 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1310 BIO_printf(bio_s_out,"subject=%s\n",buf);
1311 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1312 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1313 X509_free(peer);
1314 }
1315
1316 if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1317 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1318 str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1319 BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1320 if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1321 if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1322 TLS1_FLAGS_TLS_PADDING_BUG)
1323 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1324
1325 return(1);
1326 }
1327
1328 #ifndef OPENSSL_NO_DH
1329 static DH *load_dh_param(char *dhfile)
1330 {
1331 DH *ret=NULL;
1332 BIO *bio;
1333
1334 if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1335 goto err;
1336 ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1337 err:
1338 if (bio != NULL) BIO_free(bio);
1339 return(ret);
1340 }
1341 #endif
1342
1343 #if 0
1344 static int load_CA(SSL_CTX *ctx, char *file)
1345 {
1346 FILE *in;
1347 X509 *x=NULL;
1348
1349 if ((in=fopen(file,"r")) == NULL)
1350 return(0);
1351
1352 for (;;)
1353 {
1354 if (PEM_read_X509(in,&x,NULL) == NULL)
1355 break;
1356 SSL_CTX_add_client_CA(ctx,x);
1357 }
1358 if (x != NULL) X509_free(x);
1359 fclose(in);
1360 return(1);
1361 }
1362 #endif
1363
1364 static int www_body(char *hostname, int s, unsigned char *context)
1365 {
1366 char *buf=NULL;
1367 int ret=1;
1368 int i,j,k,blank,dot;
1369 struct stat st_buf;
1370 SSL *con;
1371 SSL_CIPHER *c;
1372 BIO *io,*ssl_bio,*sbio;
1373 long total_bytes;
1374
1375 buf=OPENSSL_malloc(bufsize);
1376 if (buf == NULL) return(0);
1377 io=BIO_new(BIO_f_buffer());
1378 ssl_bio=BIO_new(BIO_f_ssl());
1379 if ((io == NULL) || (ssl_bio == NULL)) goto err;
1380
1381 #ifdef FIONBIO
1382 if (s_nbio)
1383 {
1384 unsigned long sl=1;
1385
1386 if (!s_quiet)
1387 BIO_printf(bio_err,"turning on non blocking io\n");
1388 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1389 ERR_print_errors(bio_err);
1390 }
1391 #endif
1392
1393 /* lets make the output buffer a reasonable size */
1394 if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1395
1396 if ((con=SSL_new(ctx)) == NULL) goto err;
1397 #ifndef OPENSSL_NO_KRB5
1398 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1399 {
1400 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1401 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1402 }
1403 #endif /* OPENSSL_NO_KRB5 */
1404 if(context) SSL_set_session_id_context(con, context,
1405 strlen((char *)context));
1406
1407 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1408 if (s_nbio_test)
1409 {
1410 BIO *test;
1411
1412 test=BIO_new(BIO_f_nbio_test());
1413 sbio=BIO_push(test,sbio);
1414 }
1415 SSL_set_bio(con,sbio,sbio);
1416 SSL_set_accept_state(con);
1417
1418 /* SSL_set_fd(con,s); */
1419 BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1420 BIO_push(io,ssl_bio);
1421 #ifdef CHARSET_EBCDIC
1422 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1423 #endif
1424
1425 if (s_debug)
1426 {
1427 con->debug=1;
1428 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1429 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1430 }
1431 if (s_msg)
1432 {
1433 SSL_set_msg_callback(con, msg_cb);
1434 SSL_set_msg_callback_arg(con, bio_s_out);
1435 }
1436
1437 blank=0;
1438 for (;;)
1439 {
1440 if (hack)
1441 {
1442 i=SSL_accept(con);
1443
1444 switch (SSL_get_error(con,i))
1445 {
1446 case SSL_ERROR_NONE:
1447 break;
1448 case SSL_ERROR_WANT_WRITE:
1449 case SSL_ERROR_WANT_READ:
1450 case SSL_ERROR_WANT_X509_LOOKUP:
1451 continue;
1452 case SSL_ERROR_SYSCALL:
1453 case SSL_ERROR_SSL:
1454 case SSL_ERROR_ZERO_RETURN:
1455 ret=1;
1456 goto err;
1457 /* break; */
1458 }
1459
1460 SSL_renegotiate(con);
1461 SSL_write(con,NULL,0);
1462 }
1463
1464 i=BIO_gets(io,buf,bufsize-1);
1465 if (i < 0) /* error */
1466 {
1467 if (!BIO_should_retry(io))
1468 {
1469 if (!s_quiet)
1470 ERR_print_errors(bio_err);
1471 goto err;
1472 }
1473 else
1474 {
1475 BIO_printf(bio_s_out,"read R BLOCK\n");
1476 #ifndef OPENSSL_SYS_MSDOS
1477 sleep(1);
1478 #endif
1479 continue;
1480 }
1481 }
1482 else if (i == 0) /* end of input */
1483 {
1484 ret=1;
1485 goto end;
1486 }
1487
1488 /* else we have data */
1489 if ( ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1490 ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1491 {
1492 char *p;
1493 X509 *peer;
1494 STACK_OF(SSL_CIPHER) *sk;
1495 static char *space=" ";
1496
1497 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1498 BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1499 BIO_puts(io,"<pre>\n");
1500 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1501 BIO_puts(io,"\n");
1502 for (i=0; i<local_argc; i++)
1503 {
1504 BIO_puts(io,local_argv[i]);
1505 BIO_write(io," ",1);
1506 }
1507 BIO_puts(io,"\n");
1508
1509 /* The following is evil and should not really
1510 * be done */
1511 BIO_printf(io,"Ciphers supported in s_server binary\n");
1512 sk=SSL_get_ciphers(con);
1513 j=sk_SSL_CIPHER_num(sk);
1514 for (i=0; i<j; i++)
1515 {
1516 c=sk_SSL_CIPHER_value(sk,i);
1517 BIO_printf(io,"%-11s:%-25s",
1518 SSL_CIPHER_get_version(c),
1519 SSL_CIPHER_get_name(c));
1520 if ((((i+1)%2) == 0) && (i+1 != j))
1521 BIO_puts(io,"\n");
1522 }
1523 BIO_puts(io,"\n");
1524 p=SSL_get_shared_ciphers(con,buf,bufsize);
1525 if (p != NULL)
1526 {
1527 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1528 j=i=0;
1529 while (*p)
1530 {
1531 if (*p == ':')
1532 {
1533 BIO_write(io,space,26-j);
1534 i++;
1535 j=0;
1536 BIO_write(io,((i%3)?" ":"\n"),1);
1537 }
1538 else
1539 {
1540 BIO_write(io,p,1);
1541 j++;
1542 }
1543 p++;
1544 }
1545 BIO_puts(io,"\n");
1546 }
1547 BIO_printf(io,((con->hit)
1548 ?"---\nReused, "
1549 :"---\nNew, "));
1550 c=SSL_get_current_cipher(con);
1551 BIO_printf(io,"%s, Cipher is %s\n",
1552 SSL_CIPHER_get_version(c),
1553 SSL_CIPHER_get_name(c));
1554 SSL_SESSION_print(io,SSL_get_session(con));
1555 BIO_printf(io,"---\n");
1556 print_stats(io,SSL_get_SSL_CTX(con));
1557 BIO_printf(io,"---\n");
1558 peer=SSL_get_peer_certificate(con);
1559 if (peer != NULL)
1560 {
1561 BIO_printf(io,"Client certificate\n");
1562 X509_print(io,peer);
1563 PEM_write_bio_X509(io,peer);
1564 }
1565 else
1566 BIO_puts(io,"no client certificate available\n");
1567 BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1568 break;
1569 }
1570 else if ((www == 2 || www == 3)
1571 && (strncmp("GET /",buf,5) == 0))
1572 {
1573 BIO *file;
1574 char *p,*e;
1575 static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1576
1577 /* skip the '/' */
1578 p= &(buf[5]);
1579
1580 dot = 1;
1581 for (e=p; *e != '\0'; e++)
1582 {
1583 if (e[0] == ' ')
1584 break;
1585
1586 switch (dot)
1587 {
1588 case 1:
1589 dot = (e[0] == '.') ? 2 : 0;
1590 break;
1591 case 2:
1592 dot = (e[0] == '.') ? 3 : 0;
1593 break;
1594 case 3:
1595 dot = (e[0] == '/') ? -1 : 0;
1596 break;
1597 }
1598 if (dot == 0)
1599 dot = (e[0] == '/') ? 1 : 0;
1600 }
1601 dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
1602
1603 if (*e == '\0')
1604 {
1605 BIO_puts(io,text);
1606 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1607 break;
1608 }
1609 *e='\0';
1610
1611 if (dot)
1612 {
1613 BIO_puts(io,text);
1614 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1615 break;
1616 }
1617
1618 if (*p == '/')
1619 {
1620 BIO_puts(io,text);
1621 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1622 break;
1623 }
1624
1625 #if 0
1626 /* append if a directory lookup */
1627 if (e[-1] == '/')
1628 strcat(p,"index.html");
1629 #endif
1630
1631 /* if a directory, do the index thang */
1632 if (stat(p,&st_buf) < 0)
1633 {
1634 BIO_puts(io,text);
1635 BIO_printf(io,"Error accessing '%s'\r\n",p);
1636 ERR_print_errors(io);
1637 break;
1638 }
1639 if (S_ISDIR(st_buf.st_mode))
1640 {
1641 #if 0 /* must check buffer size */
1642 strcat(p,"/index.html");
1643 #else
1644 BIO_puts(io,text);
1645 BIO_printf(io,"'%s' is a directory\r\n",p);
1646 break;
1647 #endif
1648 }
1649
1650 if ((file=BIO_new_file(p,"r")) == NULL)
1651 {
1652 BIO_puts(io,text);
1653 BIO_printf(io,"Error opening '%s'\r\n",p);
1654 ERR_print_errors(io);
1655 break;
1656 }
1657
1658 if (!s_quiet)
1659 BIO_printf(bio_err,"FILE:%s\n",p);
1660
1661 if (www == 2)
1662 {
1663 i=strlen(p);
1664 if ( ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1665 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1666 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1667 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1668 else
1669 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1670 }
1671 /* send the file */
1672 total_bytes=0;
1673 for (;;)
1674 {
1675 i=BIO_read(file,buf,bufsize);
1676 if (i <= 0) break;
1677
1678 #ifdef RENEG
1679 total_bytes+=i;
1680 fprintf(stderr,"%d\n",i);
1681 if (total_bytes > 3*1024)
1682 {
1683 total_bytes=0;
1684 fprintf(stderr,"RENEGOTIATE\n");
1685 SSL_renegotiate(con);
1686 }
1687 #endif
1688
1689 for (j=0; j<i; )
1690 {
1691 #ifdef RENEG
1692 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1693 #endif
1694 k=BIO_write(io,&(buf[j]),i-j);
1695 if (k <= 0)
1696 {
1697 if (!BIO_should_retry(io))
1698 goto write_error;
1699 else
1700 {
1701 BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1702 }
1703 }
1704 else
1705 {
1706 j+=k;
1707 }
1708 }
1709 }
1710 write_error:
1711 BIO_free(file);
1712 break;
1713 }
1714 }
1715
1716 for (;;)
1717 {
1718 i=(int)BIO_flush(io);
1719 if (i <= 0)
1720 {
1721 if (!BIO_should_retry(io))
1722 break;
1723 }
1724 else
1725 break;
1726 }
1727 end:
1728 #if 1
1729 /* make sure we re-use sessions */
1730 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1731 #else
1732 /* This kills performance */
1733 /* SSL_shutdown(con); A shutdown gets sent in the
1734 * BIO_free_all(io) procession */
1735 #endif
1736
1737 err:
1738
1739 if (ret >= 0)
1740 BIO_printf(bio_s_out,"ACCEPT\n");
1741
1742 if (buf != NULL) OPENSSL_free(buf);
1743 if (io != NULL) BIO_free_all(io);
1744 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1745 return(ret);
1746 }
1747
1748 #ifndef OPENSSL_NO_RSA
1749 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1750 {
1751 static RSA *rsa_tmp=NULL;
1752
1753 if (rsa_tmp == NULL)
1754 {
1755 if (!s_quiet)
1756 {
1757 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1758 (void)BIO_flush(bio_err);
1759 }
1760 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1761 if (!s_quiet)
1762 {
1763 BIO_printf(bio_err,"\n");
1764 (void)BIO_flush(bio_err);
1765 }
1766 }
1767 return(rsa_tmp);
1768 }
1769 #endif
1770
1771 #define MAX_SESSION_ID_ATTEMPTS 10
1772 static int generate_session_id(const SSL *ssl, unsigned char *id,
1773 unsigned int *id_len)
1774 {
1775 unsigned int count = 0;
1776 do {
1777 RAND_pseudo_bytes(id, *id_len);
1778 /* Prefix the session_id with the required prefix. NB: If our
1779 * prefix is too long, clip it - but there will be worse effects
1780 * anyway, eg. the server could only possibly create 1 session
1781 * ID (ie. the prefix!) so all future session negotiations will
1782 * fail due to conflicts. */
1783 memcpy(id, session_id_prefix,
1784 (strlen(session_id_prefix) < *id_len) ?
1785 strlen(session_id_prefix) : *id_len);
1786 }
1787 while(SSL_has_matching_session_id(ssl, id, *id_len) &&
1788 (++count < MAX_SESSION_ID_ATTEMPTS));
1789 if(count >= MAX_SESSION_ID_ATTEMPTS)
1790 return 0;
1791 return 1;
1792 }
A mirror of the official openssl repository