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Massive constification.
[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 #include <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62 #include <sys/types.h>
63 #include <sys/stat.h>
64 #ifdef NO_STDIO
65 #define APPS_WIN16
66 #endif
67 #include "lhash.h"
68 #include "bn.h"
69 #define USE_SOCKETS
70 #include "apps.h"
71 #include "err.h"
72 #include "pem.h"
73 #include "x509.h"
74 #include "ssl.h"
75 #include "s_apps.h"
76
77 #ifndef NOPROTO
78 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export,int keylength);
79 static int sv_body(char *hostname, int s, char *context);
80 static int www_body(char *hostname, int s, char *context);
81 static void close_accept_socket(void );
82 static void sv_usage(void);
83 static int init_ssl_connection(SSL *s);
84 static void print_stats(BIO *bp,SSL_CTX *ctx);
85 #ifndef NO_DH
86 static DH *load_dh_param(void );
87 static DH *get_dh512(void);
88 #endif
89 /* static void s_server_init(void);*/
90 #else
91 static RSA MS_CALLBACK *tmp_rsa_cb();
92 static int sv_body();
93 static int www_body();
94 static void close_accept_socket();
95 static void sv_usage();
96 static int init_ssl_connection();
97 static void print_stats();
98 #ifndef NO_DH
99 static DH *load_dh_param();
100 static DH *get_dh512();
101 #endif
102 /* static void s_server_init(); */
103 #endif
104
105
106 #ifndef S_ISDIR
107 #define S_ISDIR(a) (((a) & _S_IFMT) == _S_IFDIR)
108 #endif
109
110 #ifndef NO_DH
111 static unsigned char dh512_p[]={
112 0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
113 0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
114 0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
115 0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
116 0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
117 0x47,0x74,0xE8,0x33,
118 };
119 static unsigned char dh512_g[]={
120 0x02,
121 };
122
123 static DH *get_dh512()
124 {
125 DH *dh=NULL;
126
127 if ((dh=DH_new()) == NULL) return(NULL);
128 dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
129 dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
130 if ((dh->p == NULL) || (dh->g == NULL))
131 return(NULL);
132 return(dh);
133 }
134 #endif
135
136 /* static int load_CA(SSL_CTX *ctx, char *file);*/
137
138 #undef BUFSIZZ
139 #define BUFSIZZ 16*1024
140 static int bufsize=32;
141 static int accept_socket= -1;
142
143 #define TEST_CERT "server.pem"
144 #undef PROG
145 #define PROG s_server_main
146
147 #define DH_PARAM "server.pem"
148
149 extern int verify_depth;
150
151 static char *cipher=NULL;
152 static int s_server_verify=SSL_VERIFY_NONE;
153 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
154 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
155 #ifdef FIONBIO
156 static int s_nbio=0;
157 #endif
158 static int s_nbio_test=0;
159 static SSL_CTX *ctx=NULL;
160 static int www=0;
161
162 static BIO *bio_s_out=NULL;
163 static int s_debug=0;
164 static int s_quiet=0;
165
166 #if 0
167 static void s_server_init()
168 {
169 cipher=NULL;
170 s_server_verify=SSL_VERIFY_NONE;
171 s_dcert_file=NULL;
172 s_dkey_file=NULL;
173 s_cert_file=TEST_CERT;
174 s_key_file=NULL;
175 #ifdef FIONBIO
176 s_nbio=0;
177 #endif
178 s_nbio_test=0;
179 ctx=NULL;
180 www=0;
181
182 bio_s_out=NULL;
183 s_debug=0;
184 s_quiet=0;
185 }
186 #endif
187
188 static void sv_usage()
189 {
190 BIO_printf(bio_err,"usage: s_server [args ...]\n");
191 BIO_printf(bio_err,"\n");
192 BIO_printf(bio_err," -accept arg - port to accept on (default is %d)\n",PORT);
193 BIO_printf(bio_err," -context arg - set session ID context\n");
194 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
195 BIO_printf(bio_err," -Verify arg - turn on peer certificate verification, must have a cert.\n");
196 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n");
197 BIO_printf(bio_err," (default is %s)\n",TEST_CERT);
198 BIO_printf(bio_err," -key arg - RSA file to use, PEM format assumed, in cert file if\n");
199 BIO_printf(bio_err," not specified (default is %s)\n",TEST_CERT);
200 BIO_printf(bio_err," -dcert arg - second certificate file to use (usually for DSA)\n");
201 BIO_printf(bio_err," -dkey arg - second private key file to use (usually for DSA)\n");
202 #ifdef FIONBIO
203 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
204 #endif
205 BIO_printf(bio_err," -nbio_test - test with the non-blocking test bio\n");
206 BIO_printf(bio_err," -debug - Print more output\n");
207 BIO_printf(bio_err," -state - Print the SSL states\n");
208 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
209 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
210 BIO_printf(bio_err," -nocert - Don't use any certificates (Anon-DH)\n");
211 BIO_printf(bio_err," -cipher arg - play with 'openssl ciphers' to see what goes here\n");
212 BIO_printf(bio_err," -quiet - No server output\n");
213 BIO_printf(bio_err," -no_tmp_rsa - Do not generate a tmp RSA key\n");
214 BIO_printf(bio_err," -ssl2 - Just talk SSLv2\n");
215 BIO_printf(bio_err," -ssl3 - Just talk SSLv3\n");
216 BIO_printf(bio_err," -tls1 - Just talk TLSv1\n");
217 BIO_printf(bio_err," -no_ssl2 - Just disable SSLv2\n");
218 BIO_printf(bio_err," -no_ssl3 - Just disable SSLv3\n");
219 BIO_printf(bio_err," -no_tls1 - Just disable TLSv1\n");
220 BIO_printf(bio_err," -bugs - Turn on SSL bug compatability\n");
221 BIO_printf(bio_err," -www - Respond to a 'GET /' with a status page\n");
222 BIO_printf(bio_err," -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
223 }
224
225 static int local_argc=0;
226 static char **local_argv;
227 static int hack=0;
228
229 int MAIN(argc, argv)
230 int argc;
231 char *argv[];
232 {
233 short port=PORT;
234 char *CApath=NULL,*CAfile=NULL;
235 char *context = NULL;
236 int badop=0,bugs=0;
237 int ret=1;
238 int off=0;
239 int no_tmp_rsa=0,nocert=0;
240 int state=0;
241 SSL_METHOD *meth=NULL;
242 #ifndef NO_DH
243 DH *dh=NULL;
244 #endif
245
246 #if !defined(NO_SSL2) && !defined(NO_SSL3)
247 meth=SSLv23_server_method();
248 #elif !defined(NO_SSL3)
249 meth=SSLv3_server_method();
250 #elif !defined(NO_SSL2)
251 meth=SSLv2_server_method();
252 #endif
253
254 local_argc=argc;
255 local_argv=argv;
256
257 apps_startup();
258 s_quiet=0;
259 s_debug=0;
260
261 if (bio_err == NULL)
262 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
263
264 verify_depth=0;
265 #ifdef FIONBIO
266 s_nbio=0;
267 #endif
268 s_nbio_test=0;
269
270 argc--;
271 argv++;
272
273 while (argc >= 1)
274 {
275 if ((strcmp(*argv,"-port") == 0) ||
276 (strcmp(*argv,"-accept") == 0))
277 {
278 if (--argc < 1) goto bad;
279 if (!extract_port(*(++argv),&port))
280 goto bad;
281 }
282 else if (strcmp(*argv,"-verify") == 0)
283 {
284 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
285 if (--argc < 1) goto bad;
286 verify_depth=atoi(*(++argv));
287 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
288 }
289 else if (strcmp(*argv,"-Verify") == 0)
290 {
291 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
292 SSL_VERIFY_CLIENT_ONCE;
293 if (--argc < 1) goto bad;
294 verify_depth=atoi(*(++argv));
295 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
296 }
297 else if (strcmp(*argv,"-context") == 0)
298 {
299 if (--argc < 1) goto bad;
300 context= *(++argv);
301 }
302 else if (strcmp(*argv,"-cert") == 0)
303 {
304 if (--argc < 1) goto bad;
305 s_cert_file= *(++argv);
306 }
307 else if (strcmp(*argv,"-key") == 0)
308 {
309 if (--argc < 1) goto bad;
310 s_key_file= *(++argv);
311 }
312 else if (strcmp(*argv,"-dcert") == 0)
313 {
314 if (--argc < 1) goto bad;
315 s_dcert_file= *(++argv);
316 }
317 else if (strcmp(*argv,"-dkey") == 0)
318 {
319 if (--argc < 1) goto bad;
320 s_dkey_file= *(++argv);
321 }
322 else if (strcmp(*argv,"-nocert") == 0)
323 {
324 nocert=1;
325 }
326 else if (strcmp(*argv,"-CApath") == 0)
327 {
328 if (--argc < 1) goto bad;
329 CApath= *(++argv);
330 }
331 else if (strcmp(*argv,"-cipher") == 0)
332 {
333 if (--argc < 1) goto bad;
334 cipher= *(++argv);
335 }
336 else if (strcmp(*argv,"-CAfile") == 0)
337 {
338 if (--argc < 1) goto bad;
339 CAfile= *(++argv);
340 }
341 #ifdef FIONBIO
342 else if (strcmp(*argv,"-nbio") == 0)
343 { s_nbio=1; }
344 #endif
345 else if (strcmp(*argv,"-nbio_test") == 0)
346 {
347 #ifdef FIONBIO
348 s_nbio=1;
349 #endif
350 s_nbio_test=1;
351 }
352 else if (strcmp(*argv,"-debug") == 0)
353 { s_debug=1; }
354 else if (strcmp(*argv,"-hack") == 0)
355 { hack=1; }
356 else if (strcmp(*argv,"-state") == 0)
357 { state=1; }
358 else if (strcmp(*argv,"-quiet") == 0)
359 { s_quiet=1; }
360 else if (strcmp(*argv,"-bugs") == 0)
361 { bugs=1; }
362 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
363 { no_tmp_rsa=1; }
364 else if (strcmp(*argv,"-www") == 0)
365 { www=1; }
366 else if (strcmp(*argv,"-WWW") == 0)
367 { www=2; }
368 else if (strcmp(*argv,"-no_ssl2") == 0)
369 { off|=SSL_OP_NO_SSLv2; }
370 else if (strcmp(*argv,"-no_ssl3") == 0)
371 { off|=SSL_OP_NO_SSLv3; }
372 else if (strcmp(*argv,"-no_tls1") == 0)
373 { off|=SSL_OP_NO_TLSv1; }
374 #ifndef NO_SSL2
375 else if (strcmp(*argv,"-ssl2") == 0)
376 { meth=SSLv2_server_method(); }
377 #endif
378 #ifndef NO_SSL3
379 else if (strcmp(*argv,"-ssl3") == 0)
380 { meth=SSLv3_server_method(); }
381 #endif
382 #ifndef NO_TLS1
383 else if (strcmp(*argv,"-tls1") == 0)
384 { meth=TLSv1_server_method(); }
385 #endif
386 else
387 {
388 BIO_printf(bio_err,"unknown option %s\n",*argv);
389 badop=1;
390 break;
391 }
392 argc--;
393 argv++;
394 }
395 if (badop)
396 {
397 bad:
398 sv_usage();
399 goto end;
400 }
401
402 if (bio_s_out == NULL)
403 {
404 if (s_quiet && !s_debug)
405 {
406 bio_s_out=BIO_new(BIO_s_null());
407 }
408 else
409 {
410 if (bio_s_out == NULL)
411 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
412 }
413 }
414
415 #if !defined(NO_RSA) || !defined(NO_DSA)
416 if (nocert)
417 #endif
418 {
419 s_cert_file=NULL;
420 s_key_file=NULL;
421 s_dcert_file=NULL;
422 s_dkey_file=NULL;
423 }
424
425 SSL_load_error_strings();
426 SSLeay_add_ssl_algorithms();
427
428 ctx=SSL_CTX_new(meth);
429 if (ctx == NULL)
430 {
431 ERR_print_errors(bio_err);
432 goto end;
433 }
434
435 SSL_CTX_set_quiet_shutdown(ctx,1);
436 if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
437 if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
438 SSL_CTX_set_options(ctx,off);
439 if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
440
441 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
442
443 SSL_CTX_sess_set_cache_size(ctx,128);
444
445 #if 0
446 if (cipher == NULL) cipher=getenv("SSL_CIPHER");
447 #endif
448
449 #if 0
450 if (s_cert_file == NULL)
451 {
452 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
453 goto end;
454 }
455 #endif
456
457 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
458 (!SSL_CTX_set_default_verify_paths(ctx)))
459 {
460 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
461 ERR_print_errors(bio_err);
462 /* goto end; */
463 }
464
465 #ifndef NO_DH
466 /* EAY EAY EAY evil hack */
467 dh=load_dh_param();
468 if (dh != NULL)
469 {
470 BIO_printf(bio_s_out,"Setting temp DH parameters\n");
471 }
472 else
473 {
474 BIO_printf(bio_s_out,"Using default temp DH parameters\n");
475 dh=get_dh512();
476 }
477 BIO_flush(bio_s_out);
478
479 SSL_CTX_set_tmp_dh(ctx,dh);
480 DH_free(dh);
481 #endif
482
483 if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
484 goto end;
485 if (s_dcert_file != NULL)
486 {
487 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
488 goto end;
489 }
490
491 #if 1
492 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
493 #else
494 if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
495 {
496 RSA *rsa;
497
498 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
499 BIO_flush(bio_s_out);
500
501 rsa=RSA_generate_key(512,RSA_F4,NULL);
502
503 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
504 {
505 ERR_print_errors(bio_err);
506 goto end;
507 }
508 RSA_free(rsa);
509 BIO_printf(bio_s_out,"\n");
510 }
511 #endif
512
513 if (cipher != NULL)
514 SSL_CTX_set_cipher_list(ctx,cipher);
515 SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
516
517 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
518
519 BIO_printf(bio_s_out,"ACCEPT\n");
520 if (www)
521 do_server(port,&accept_socket,www_body, context);
522 else
523 do_server(port,&accept_socket,sv_body, context);
524 print_stats(bio_s_out,ctx);
525 ret=0;
526 end:
527 if (ctx != NULL) SSL_CTX_free(ctx);
528 if (bio_s_out != NULL)
529 {
530 BIO_free(bio_s_out);
531 bio_s_out=NULL;
532 }
533 EXIT(ret);
534 }
535
536 static void print_stats(bio,ssl_ctx)
537 BIO *bio;
538 SSL_CTX *ssl_ctx;
539 {
540 BIO_printf(bio,"%4ld items in the session cache\n",
541 SSL_CTX_sess_number(ssl_ctx));
542 BIO_printf(bio,"%4d client connects (SSL_connect())\n",
543 SSL_CTX_sess_connect(ssl_ctx));
544 BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
545 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
546 BIO_printf(bio,"%4d client connects that finished\n",
547 SSL_CTX_sess_connect_good(ssl_ctx));
548 BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
549 SSL_CTX_sess_accept(ssl_ctx));
550 BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
551 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
552 BIO_printf(bio,"%4d server accepts that finished\n",
553 SSL_CTX_sess_accept_good(ssl_ctx));
554 BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
555 BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
556 BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
557 BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
558 BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
559 SSL_CTX_sess_cache_full(ssl_ctx),
560 SSL_CTX_sess_get_cache_size(ssl_ctx));
561 }
562
563 static int sv_body(hostname, s, context)
564 char *hostname;
565 int s;
566 char *context;
567 {
568 char *buf=NULL;
569 fd_set readfds;
570 int ret=1,width;
571 int k,i;
572 unsigned long l;
573 SSL *con=NULL;
574 BIO *sbio;
575
576 if ((buf=Malloc(bufsize)) == NULL)
577 {
578 BIO_printf(bio_err,"out of memory\n");
579 goto err;
580 }
581 #ifdef FIONBIO
582 if (s_nbio)
583 {
584 unsigned long sl=1;
585
586 if (!s_quiet)
587 BIO_printf(bio_err,"turning on non blocking io\n");
588 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
589 ERR_print_errors(bio_err);
590 }
591 #endif
592
593 if (con == NULL) {
594 con=(SSL *)SSL_new(ctx);
595 if(context)
596 SSL_set_session_id_context(con, context, strlen(context));
597 }
598 SSL_clear(con);
599
600 sbio=BIO_new_socket(s,BIO_NOCLOSE);
601 if (s_nbio_test)
602 {
603 BIO *test;
604
605 test=BIO_new(BIO_f_nbio_test());
606 sbio=BIO_push(test,sbio);
607 }
608 SSL_set_bio(con,sbio,sbio);
609 SSL_set_accept_state(con);
610 /* SSL_set_fd(con,s); */
611
612 if (s_debug)
613 {
614 con->debug=1;
615 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
616 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
617 }
618
619 width=s+1;
620 for (;;)
621 {
622 FD_ZERO(&readfds);
623 #ifndef WINDOWS
624 FD_SET(fileno(stdin),&readfds);
625 #endif
626 FD_SET(s,&readfds);
627 i=select(width,&readfds,NULL,NULL,NULL);
628 if (i <= 0) continue;
629 if (FD_ISSET(fileno(stdin),&readfds))
630 {
631 i=read(fileno(stdin),buf,bufsize);
632 if (!s_quiet)
633 {
634 if ((i <= 0) || (buf[0] == 'Q'))
635 {
636 BIO_printf(bio_s_out,"DONE\n");
637 SHUTDOWN(s);
638 close_accept_socket();
639 ret= -11;
640 goto err;
641 }
642 if ((i <= 0) || (buf[0] == 'q'))
643 {
644 BIO_printf(bio_s_out,"DONE\n");
645 SHUTDOWN(s);
646 /* close_accept_socket();
647 ret= -11;*/
648 goto err;
649 }
650 if ((buf[0] == 'r') &&
651 ((buf[1] == '\n') || (buf[1] == '\r')))
652 {
653 SSL_renegotiate(con);
654 i=SSL_do_handshake(con);
655 printf("SSL_do_handshake -> %d\n",i);
656 i=0; /*13; */
657 continue;
658 /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
659 }
660 if ((buf[0] == 'R') &&
661 ((buf[1] == '\n') || (buf[1] == '\r')))
662 {
663 SSL_set_verify(con,
664 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
665 SSL_renegotiate(con);
666 i=SSL_do_handshake(con);
667 printf("SSL_do_handshake -> %d\n",i);
668 i=0; /* 13; */
669 continue;
670 /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
671 }
672 if (buf[0] == 'P')
673 {
674 static char *str="Lets print some clear text\n";
675 BIO_write(SSL_get_wbio(con),str,strlen(str));
676 }
677 if (buf[0] == 'S')
678 {
679 print_stats(bio_s_out,SSL_get_SSL_CTX(con));
680 }
681 }
682 l=k=0;
683 for (;;)
684 {
685 /* should do a select for the write */
686 #ifdef RENEG
687 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
688 #endif
689 k=SSL_write(con,&(buf[l]),(unsigned int)i);
690 switch (SSL_get_error(con,k))
691 {
692 case SSL_ERROR_NONE:
693 break;
694 case SSL_ERROR_WANT_WRITE:
695 case SSL_ERROR_WANT_READ:
696 case SSL_ERROR_WANT_X509_LOOKUP:
697 BIO_printf(bio_s_out,"Write BLOCK\n");
698 break;
699 case SSL_ERROR_SYSCALL:
700 case SSL_ERROR_SSL:
701 BIO_printf(bio_s_out,"ERROR\n");
702 ERR_print_errors(bio_err);
703 ret=1;
704 goto err;
705 /* break; */
706 case SSL_ERROR_ZERO_RETURN:
707 BIO_printf(bio_s_out,"DONE\n");
708 ret=1;
709 goto err;
710 }
711 l+=k;
712 i-=k;
713 if (i <= 0) break;
714 }
715 }
716 if (FD_ISSET(s,&readfds))
717 {
718 if (!SSL_is_init_finished(con))
719 {
720 i=init_ssl_connection(con);
721
722 if (i < 0)
723 {
724 ret=0;
725 goto err;
726 }
727 else if (i == 0)
728 {
729 ret=1;
730 goto err;
731 }
732 }
733 else
734 {
735 again:
736 i=SSL_read(con,(char *)buf,bufsize);
737 switch (SSL_get_error(con,i))
738 {
739 case SSL_ERROR_NONE:
740 write(fileno(stdout),buf,
741 (unsigned int)i);
742 if (SSL_pending(con)) goto again;
743 break;
744 case SSL_ERROR_WANT_WRITE:
745 case SSL_ERROR_WANT_READ:
746 case SSL_ERROR_WANT_X509_LOOKUP:
747 BIO_printf(bio_s_out,"Read BLOCK\n");
748 break;
749 case SSL_ERROR_SYSCALL:
750 case SSL_ERROR_SSL:
751 BIO_printf(bio_s_out,"ERROR\n");
752 ERR_print_errors(bio_err);
753 ret=1;
754 goto err;
755 case SSL_ERROR_ZERO_RETURN:
756 BIO_printf(bio_s_out,"DONE\n");
757 ret=1;
758 goto err;
759 }
760 }
761 }
762 }
763 err:
764 BIO_printf(bio_s_out,"shutting down SSL\n");
765 #if 1
766 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
767 #else
768 SSL_shutdown(con);
769 #endif
770 if (con != NULL) SSL_free(con);
771 BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
772 if (buf != NULL)
773 {
774 memset(buf,0,bufsize);
775 Free(buf);
776 }
777 if (ret >= 0)
778 BIO_printf(bio_s_out,"ACCEPT\n");
779 return(ret);
780 }
781
782 static void close_accept_socket()
783 {
784 BIO_printf(bio_err,"shutdown accept socket\n");
785 if (accept_socket >= 0)
786 {
787 SHUTDOWN2(accept_socket);
788 }
789 }
790
791 static int init_ssl_connection(con)
792 SSL *con;
793 {
794 int i;
795 const char *str;
796 X509 *peer;
797 long verify_error;
798 MS_STATIC char buf[BUFSIZ];
799
800 if ((i=SSL_accept(con)) <= 0)
801 {
802 if (BIO_sock_should_retry(i))
803 {
804 BIO_printf(bio_s_out,"DELAY\n");
805 return(1);
806 }
807
808 BIO_printf(bio_err,"ERROR\n");
809 verify_error=SSL_get_verify_result(con);
810 if (verify_error != X509_V_OK)
811 {
812 BIO_printf(bio_err,"verify error:%s\n",
813 X509_verify_cert_error_string(verify_error));
814 }
815 else
816 ERR_print_errors(bio_err);
817 return(0);
818 }
819
820 PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
821
822 peer=SSL_get_peer_certificate(con);
823 if (peer != NULL)
824 {
825 BIO_printf(bio_s_out,"Client certificate\n");
826 PEM_write_bio_X509(bio_s_out,peer);
827 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
828 BIO_printf(bio_s_out,"subject=%s\n",buf);
829 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
830 BIO_printf(bio_s_out,"issuer=%s\n",buf);
831 X509_free(peer);
832 }
833
834 if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
835 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
836 str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
837 BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
838 if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
839 if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
840 TLS1_FLAGS_TLS_PADDING_BUG)
841 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
842
843 return(1);
844 }
845
846 #ifndef NO_DH
847 static DH *load_dh_param()
848 {
849 DH *ret=NULL;
850 BIO *bio;
851
852 if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
853 goto err;
854 ret=PEM_read_bio_DHparams(bio,NULL,NULL);
855 err:
856 if (bio != NULL) BIO_free(bio);
857 return(ret);
858 }
859 #endif
860
861 #if 0
862 static int load_CA(ctx,file)
863 SSL_CTX *ctx;
864 char *file;
865 {
866 FILE *in;
867 X509 *x=NULL;
868
869 if ((in=fopen(file,"r")) == NULL)
870 return(0);
871
872 for (;;)
873 {
874 if (PEM_read_X509(in,&x,NULL) == NULL)
875 break;
876 SSL_CTX_add_client_CA(ctx,x);
877 }
878 if (x != NULL) X509_free(x);
879 fclose(in);
880 return(1);
881 }
882 #endif
883
884 static int www_body(hostname, s, context)
885 char *hostname;
886 int s;
887 char *context;
888 {
889 char *buf=NULL;
890 int ret=1;
891 int i,j,k,blank,dot;
892 struct stat st_buf;
893 SSL *con;
894 SSL_CIPHER *c;
895 BIO *io,*ssl_bio,*sbio;
896 long total_bytes;
897
898 buf=Malloc(bufsize);
899 if (buf == NULL) return(0);
900 io=BIO_new(BIO_f_buffer());
901 ssl_bio=BIO_new(BIO_f_ssl());
902 if ((io == NULL) || (ssl_bio == NULL)) goto err;
903
904 #ifdef FIONBIO
905 if (s_nbio)
906 {
907 unsigned long sl=1;
908
909 if (!s_quiet)
910 BIO_printf(bio_err,"turning on non blocking io\n");
911 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
912 ERR_print_errors(bio_err);
913 }
914 #endif
915
916 /* lets make the output buffer a reasonable size */
917 if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
918
919 if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
920 if(context) SSL_set_session_id_context(con, context, strlen(context));
921
922 sbio=BIO_new_socket(s,BIO_NOCLOSE);
923 if (s_nbio_test)
924 {
925 BIO *test;
926
927 test=BIO_new(BIO_f_nbio_test());
928 sbio=BIO_push(test,sbio);
929 }
930 SSL_set_bio(con,sbio,sbio);
931 SSL_set_accept_state(con);
932
933 /* SSL_set_fd(con,s); */
934 BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
935 BIO_push(io,ssl_bio);
936
937 if (s_debug)
938 {
939 con->debug=1;
940 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
941 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
942 }
943
944 blank=0;
945 for (;;)
946 {
947 if (hack)
948 {
949 i=SSL_accept(con);
950
951 switch (SSL_get_error(con,i))
952 {
953 case SSL_ERROR_NONE:
954 break;
955 case SSL_ERROR_WANT_WRITE:
956 case SSL_ERROR_WANT_READ:
957 case SSL_ERROR_WANT_X509_LOOKUP:
958 continue;
959 case SSL_ERROR_SYSCALL:
960 case SSL_ERROR_SSL:
961 case SSL_ERROR_ZERO_RETURN:
962 ret=1;
963 goto err;
964 /* break; */
965 }
966
967 SSL_renegotiate(con);
968 SSL_write(con,NULL,0);
969 }
970
971 i=BIO_gets(io,buf,bufsize-1);
972 if (i < 0) /* error */
973 {
974 if (!BIO_should_retry(io))
975 {
976 if (!s_quiet)
977 ERR_print_errors(bio_err);
978 goto err;
979 }
980 else
981 {
982 BIO_printf(bio_s_out,"read R BLOCK\n");
983 #ifndef MSDOS
984 sleep(1);
985 #endif
986 continue;
987 }
988 }
989 else if (i == 0) /* end of input */
990 {
991 ret=1;
992 goto end;
993 }
994
995 /* else we have data */
996 if ( ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
997 ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
998 {
999 char *p;
1000 X509 *peer;
1001 STACK_OF(SSL_CIPHER) *sk;
1002 static char *space=" ";
1003
1004 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1005 BIO_puts(io,"<HTML><BODY BGCOLOR=ffffff>\n");
1006 BIO_puts(io,"<pre>\n");
1007 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1008 BIO_puts(io,"\n");
1009 for (i=0; i<local_argc; i++)
1010 {
1011 BIO_puts(io,local_argv[i]);
1012 BIO_write(io," ",1);
1013 }
1014 BIO_puts(io,"\n");
1015
1016 /* The following is evil and should not really
1017 * be done */
1018 BIO_printf(io,"Ciphers supported in s_server binary\n");
1019 sk=SSL_get_ciphers(con);
1020 j=sk_SSL_CIPHER_num(sk);
1021 for (i=0; i<j; i++)
1022 {
1023 c=sk_SSL_CIPHER_value(sk,i);
1024 BIO_printf(io,"%-11s:%-25s",
1025 SSL_CIPHER_get_version(c),
1026 SSL_CIPHER_get_name(c));
1027 if ((((i+1)%2) == 0) && (i+1 != j))
1028 BIO_puts(io,"\n");
1029 }
1030 BIO_puts(io,"\n");
1031 p=SSL_get_shared_ciphers(con,buf,bufsize);
1032 if (p != NULL)
1033 {
1034 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1035 j=i=0;
1036 while (*p)
1037 {
1038 if (*p == ':')
1039 {
1040 BIO_write(io,space,26-j);
1041 i++;
1042 j=0;
1043 BIO_write(io,((i%3)?" ":"\n"),1);
1044 }
1045 else
1046 {
1047 BIO_write(io,p,1);
1048 j++;
1049 }
1050 p++;
1051 }
1052 BIO_puts(io,"\n");
1053 }
1054 BIO_printf(io,((con->hit)
1055 ?"---\nReused, "
1056 :"---\nNew, "));
1057 c=SSL_get_current_cipher(con);
1058 BIO_printf(io,"%s, Cipher is %s\n",
1059 SSL_CIPHER_get_version(c),
1060 SSL_CIPHER_get_name(c));
1061 SSL_SESSION_print(io,SSL_get_session(con));
1062 BIO_printf(io,"---\n");
1063 print_stats(io,SSL_get_SSL_CTX(con));
1064 BIO_printf(io,"---\n");
1065 peer=SSL_get_peer_certificate(con);
1066 if (peer != NULL)
1067 {
1068 BIO_printf(io,"Client certificate\n");
1069 X509_print(io,peer);
1070 PEM_write_bio_X509(io,peer);
1071 }
1072 else
1073 BIO_puts(io,"no client certificate available\n");
1074 BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1075 break;
1076 }
1077 else if ((www == 2) && (strncmp("GET ",buf,4) == 0))
1078 {
1079 BIO *file;
1080 char *p,*e;
1081 static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1082
1083 /* skip the '/' */
1084 p= &(buf[5]);
1085 dot=0;
1086 for (e=p; *e != '\0'; e++)
1087 {
1088 if (e[0] == ' ') break;
1089 if ( (e[0] == '.') &&
1090 (strncmp(&(e[-1]),"/../",4) == 0))
1091 dot=1;
1092 }
1093
1094
1095 if (*e == '\0')
1096 {
1097 BIO_puts(io,text);
1098 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1099 break;
1100 }
1101 *e='\0';
1102
1103 if (dot)
1104 {
1105 BIO_puts(io,text);
1106 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1107 break;
1108 }
1109
1110 if (*p == '/')
1111 {
1112 BIO_puts(io,text);
1113 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1114 break;
1115 }
1116
1117 /* append if a directory lookup */
1118 if (e[-1] == '/')
1119 strcat(p,"index.html");
1120
1121 /* if a directory, do the index thang */
1122 if (stat(p,&st_buf) < 0)
1123 {
1124 BIO_puts(io,text);
1125 BIO_printf(io,"Error accessing '%s'\r\n",p);
1126 ERR_print_errors(io);
1127 break;
1128 }
1129 if (S_ISDIR(st_buf.st_mode))
1130 {
1131 strcat(p,"/index.html");
1132 }
1133
1134 if ((file=BIO_new_file(p,"r")) == NULL)
1135 {
1136 BIO_puts(io,text);
1137 BIO_printf(io,"Error opening '%s'\r\n",p);
1138 ERR_print_errors(io);
1139 break;
1140 }
1141
1142 if (!s_quiet)
1143 BIO_printf(bio_err,"FILE:%s\n",p);
1144
1145 i=strlen(p);
1146 if ( ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1147 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1148 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1149 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1150 else
1151 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1152 /* send the file */
1153 total_bytes=0;
1154 for (;;)
1155 {
1156 i=BIO_read(file,buf,bufsize);
1157 if (i <= 0) break;
1158
1159 #ifdef RENEG
1160 total_bytes+=i;
1161 fprintf(stderr,"%d\n",i);
1162 if (total_bytes > 3*1024)
1163 {
1164 total_bytes=0;
1165 fprintf(stderr,"RENEGOTIATE\n");
1166 SSL_renegotiate(con);
1167 }
1168 #endif
1169
1170 for (j=0; j<i; )
1171 {
1172 #ifdef RENEG
1173 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1174 #endif
1175 k=BIO_write(io,&(buf[j]),i-j);
1176 if (k <= 0)
1177 {
1178 if (!BIO_should_retry(io))
1179 goto write_error;
1180 else
1181 {
1182 BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1183 }
1184 }
1185 else
1186 {
1187 j+=k;
1188 }
1189 }
1190 }
1191 write_error:
1192 BIO_free(file);
1193 break;
1194 }
1195 }
1196
1197 for (;;)
1198 {
1199 i=(int)BIO_flush(io);
1200 if (i <= 0)
1201 {
1202 if (!BIO_should_retry(io))
1203 break;
1204 }
1205 else
1206 break;
1207 }
1208 end:
1209 #if 1
1210 /* make sure we re-use sessions */
1211 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1212 #else
1213 /* This kills performace */
1214 /* SSL_shutdown(con); A shutdown gets sent in the
1215 * BIO_free_all(io) procession */
1216 #endif
1217
1218 err:
1219
1220 if (ret >= 0)
1221 BIO_printf(bio_s_out,"ACCEPT\n");
1222
1223 if (buf != NULL) Free(buf);
1224 if (io != NULL) BIO_free_all(io);
1225 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1226 return(ret);
1227 }
1228
1229 static RSA MS_CALLBACK *tmp_rsa_cb(s,export,keylength)
1230 SSL *s;
1231 int export;
1232 int keylength;
1233 {
1234 static RSA *rsa_tmp=NULL;
1235
1236 if (rsa_tmp == NULL)
1237 {
1238 if (!s_quiet)
1239 {
1240 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1241 BIO_flush(bio_err);
1242 }
1243 #ifndef NO_RSA
1244 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1245 #endif
1246 if (!s_quiet)
1247 {
1248 BIO_printf(bio_err,"\n");
1249 BIO_flush(bio_err);
1250 }
1251 }
1252 return(rsa_tmp);
1253 }
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