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New Configure option no-<cipher> (rsa, idea, rc5, ...).
[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 <openssl/lhash.h>
68 #include <openssl/bn.h>
69 #define USE_SOCKETS
70 #include "apps.h"
71 #include <openssl/err.h>
72 #include <openssl/pem.h>
73 #include <openssl/x509.h>
74 #include <openssl/ssl.h>
75 #include "s_apps.h"
76
77 #if defined(NO_RSA) && !defined(NO_SSL2)
78 #define NO_SSL2
79 #endif
80
81 #ifndef NO_RSA
82 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export,int keylength);
83 #endif
84 static int sv_body(char *hostname, int s, unsigned char *context);
85 static int www_body(char *hostname, int s, unsigned char *context);
86 static void close_accept_socket(void );
87 static void sv_usage(void);
88 static int init_ssl_connection(SSL *s);
89 static void print_stats(BIO *bp,SSL_CTX *ctx);
90 #ifndef NO_DH
91 static DH *load_dh_param(void );
92 static DH *get_dh512(void);
93 #endif
94 /* static void s_server_init(void);*/
95
96 #ifndef S_ISDIR
97 #define S_ISDIR(a) (((a) & _S_IFMT) == _S_IFDIR)
98 #endif
99
100 #ifndef NO_DH
101 static unsigned char dh512_p[]={
102 0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
103 0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
104 0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
105 0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
106 0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
107 0x47,0x74,0xE8,0x33,
108 };
109 static unsigned char dh512_g[]={
110 0x02,
111 };
112
113 static DH *get_dh512(void)
114 {
115 DH *dh=NULL;
116
117 if ((dh=DH_new()) == NULL) return(NULL);
118 dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
119 dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
120 if ((dh->p == NULL) || (dh->g == NULL))
121 return(NULL);
122 return(dh);
123 }
124 #endif
125
126 /* static int load_CA(SSL_CTX *ctx, char *file);*/
127
128 #undef BUFSIZZ
129 #define BUFSIZZ 16*1024
130 static int bufsize=32;
131 static int accept_socket= -1;
132
133 #define TEST_CERT "server.pem"
134 #undef PROG
135 #define PROG s_server_main
136
137 #define DH_PARAM "server.pem"
138
139 extern int verify_depth;
140
141 static char *cipher=NULL;
142 static int s_server_verify=SSL_VERIFY_NONE;
143 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
144 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
145 #ifdef FIONBIO
146 static int s_nbio=0;
147 #endif
148 static int s_nbio_test=0;
149 static SSL_CTX *ctx=NULL;
150 static int www=0;
151
152 static BIO *bio_s_out=NULL;
153 static int s_debug=0;
154 static int s_quiet=0;
155
156 #if 0
157 static void s_server_init(void)
158 {
159 cipher=NULL;
160 s_server_verify=SSL_VERIFY_NONE;
161 s_dcert_file=NULL;
162 s_dkey_file=NULL;
163 s_cert_file=TEST_CERT;
164 s_key_file=NULL;
165 #ifdef FIONBIO
166 s_nbio=0;
167 #endif
168 s_nbio_test=0;
169 ctx=NULL;
170 www=0;
171
172 bio_s_out=NULL;
173 s_debug=0;
174 s_quiet=0;
175 }
176 #endif
177
178 static void sv_usage(void)
179 {
180 BIO_printf(bio_err,"usage: s_server [args ...]\n");
181 BIO_printf(bio_err,"\n");
182 BIO_printf(bio_err," -accept arg - port to accept on (default is %d)\n",PORT);
183 BIO_printf(bio_err," -context arg - set session ID context\n");
184 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
185 BIO_printf(bio_err," -Verify arg - turn on peer certificate verification, must have a cert.\n");
186 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n");
187 BIO_printf(bio_err," (default is %s)\n",TEST_CERT);
188 BIO_printf(bio_err," -key arg - RSA file to use, PEM format assumed, in cert file if\n");
189 BIO_printf(bio_err," not specified (default is %s)\n",TEST_CERT);
190 BIO_printf(bio_err," -dcert arg - second certificate file to use (usually for DSA)\n");
191 BIO_printf(bio_err," -dkey arg - second private key file to use (usually for DSA)\n");
192 #ifdef FIONBIO
193 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
194 #endif
195 BIO_printf(bio_err," -nbio_test - test with the non-blocking test bio\n");
196 BIO_printf(bio_err," -debug - Print more output\n");
197 BIO_printf(bio_err," -state - Print the SSL states\n");
198 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
199 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
200 BIO_printf(bio_err," -nocert - Don't use any certificates (Anon-DH)\n");
201 BIO_printf(bio_err," -cipher arg - play with 'openssl ciphers' to see what goes here\n");
202 BIO_printf(bio_err," -quiet - No server output\n");
203 BIO_printf(bio_err," -no_tmp_rsa - Do not generate a tmp RSA key\n");
204 BIO_printf(bio_err," -ssl2 - Just talk SSLv2\n");
205 BIO_printf(bio_err," -ssl3 - Just talk SSLv3\n");
206 BIO_printf(bio_err," -tls1 - Just talk TLSv1\n");
207 BIO_printf(bio_err," -no_ssl2 - Just disable SSLv2\n");
208 BIO_printf(bio_err," -no_ssl3 - Just disable SSLv3\n");
209 BIO_printf(bio_err," -no_tls1 - Just disable TLSv1\n");
210 BIO_printf(bio_err," -bugs - Turn on SSL bug compatability\n");
211 BIO_printf(bio_err," -www - Respond to a 'GET /' with a status page\n");
212 BIO_printf(bio_err," -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
213 }
214
215 static int local_argc=0;
216 static char **local_argv;
217 static int hack=0;
218
219 int MAIN(int argc, char *argv[])
220 {
221 short port=PORT;
222 char *CApath=NULL,*CAfile=NULL;
223 char *context = NULL;
224 int badop=0,bugs=0;
225 int ret=1;
226 int off=0;
227 int no_tmp_rsa=0,nocert=0;
228 int state=0;
229 SSL_METHOD *meth=NULL;
230 #ifndef NO_DH
231 DH *dh=NULL;
232 #endif
233
234 #if !defined(NO_SSL2) && !defined(NO_SSL3)
235 meth=SSLv23_server_method();
236 #elif !defined(NO_SSL3)
237 meth=SSLv3_server_method();
238 #elif !defined(NO_SSL2)
239 meth=SSLv2_server_method();
240 #endif
241
242 local_argc=argc;
243 local_argv=argv;
244
245 apps_startup();
246 s_quiet=0;
247 s_debug=0;
248
249 if (bio_err == NULL)
250 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
251
252 verify_depth=0;
253 #ifdef FIONBIO
254 s_nbio=0;
255 #endif
256 s_nbio_test=0;
257
258 argc--;
259 argv++;
260
261 while (argc >= 1)
262 {
263 if ((strcmp(*argv,"-port") == 0) ||
264 (strcmp(*argv,"-accept") == 0))
265 {
266 if (--argc < 1) goto bad;
267 if (!extract_port(*(++argv),&port))
268 goto bad;
269 }
270 else if (strcmp(*argv,"-verify") == 0)
271 {
272 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
273 if (--argc < 1) goto bad;
274 verify_depth=atoi(*(++argv));
275 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
276 }
277 else if (strcmp(*argv,"-Verify") == 0)
278 {
279 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
280 SSL_VERIFY_CLIENT_ONCE;
281 if (--argc < 1) goto bad;
282 verify_depth=atoi(*(++argv));
283 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
284 }
285 else if (strcmp(*argv,"-context") == 0)
286 {
287 if (--argc < 1) goto bad;
288 context= *(++argv);
289 }
290 else if (strcmp(*argv,"-cert") == 0)
291 {
292 if (--argc < 1) goto bad;
293 s_cert_file= *(++argv);
294 }
295 else if (strcmp(*argv,"-key") == 0)
296 {
297 if (--argc < 1) goto bad;
298 s_key_file= *(++argv);
299 }
300 else if (strcmp(*argv,"-dcert") == 0)
301 {
302 if (--argc < 1) goto bad;
303 s_dcert_file= *(++argv);
304 }
305 else if (strcmp(*argv,"-dkey") == 0)
306 {
307 if (--argc < 1) goto bad;
308 s_dkey_file= *(++argv);
309 }
310 else if (strcmp(*argv,"-nocert") == 0)
311 {
312 nocert=1;
313 }
314 else if (strcmp(*argv,"-CApath") == 0)
315 {
316 if (--argc < 1) goto bad;
317 CApath= *(++argv);
318 }
319 else if (strcmp(*argv,"-cipher") == 0)
320 {
321 if (--argc < 1) goto bad;
322 cipher= *(++argv);
323 }
324 else if (strcmp(*argv,"-CAfile") == 0)
325 {
326 if (--argc < 1) goto bad;
327 CAfile= *(++argv);
328 }
329 #ifdef FIONBIO
330 else if (strcmp(*argv,"-nbio") == 0)
331 { s_nbio=1; }
332 #endif
333 else if (strcmp(*argv,"-nbio_test") == 0)
334 {
335 #ifdef FIONBIO
336 s_nbio=1;
337 #endif
338 s_nbio_test=1;
339 }
340 else if (strcmp(*argv,"-debug") == 0)
341 { s_debug=1; }
342 else if (strcmp(*argv,"-hack") == 0)
343 { hack=1; }
344 else if (strcmp(*argv,"-state") == 0)
345 { state=1; }
346 else if (strcmp(*argv,"-quiet") == 0)
347 { s_quiet=1; }
348 else if (strcmp(*argv,"-bugs") == 0)
349 { bugs=1; }
350 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
351 { no_tmp_rsa=1; }
352 else if (strcmp(*argv,"-www") == 0)
353 { www=1; }
354 else if (strcmp(*argv,"-WWW") == 0)
355 { www=2; }
356 else if (strcmp(*argv,"-no_ssl2") == 0)
357 { off|=SSL_OP_NO_SSLv2; }
358 else if (strcmp(*argv,"-no_ssl3") == 0)
359 { off|=SSL_OP_NO_SSLv3; }
360 else if (strcmp(*argv,"-no_tls1") == 0)
361 { off|=SSL_OP_NO_TLSv1; }
362 #ifndef NO_SSL2
363 else if (strcmp(*argv,"-ssl2") == 0)
364 { meth=SSLv2_server_method(); }
365 #endif
366 #ifndef NO_SSL3
367 else if (strcmp(*argv,"-ssl3") == 0)
368 { meth=SSLv3_server_method(); }
369 #endif
370 #ifndef NO_TLS1
371 else if (strcmp(*argv,"-tls1") == 0)
372 { meth=TLSv1_server_method(); }
373 #endif
374 else
375 {
376 BIO_printf(bio_err,"unknown option %s\n",*argv);
377 badop=1;
378 break;
379 }
380 argc--;
381 argv++;
382 }
383 if (badop)
384 {
385 bad:
386 sv_usage();
387 goto end;
388 }
389
390 if (bio_s_out == NULL)
391 {
392 if (s_quiet && !s_debug)
393 {
394 bio_s_out=BIO_new(BIO_s_null());
395 }
396 else
397 {
398 if (bio_s_out == NULL)
399 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
400 }
401 }
402
403 #if !defined(NO_RSA) || !defined(NO_DSA)
404 if (nocert)
405 #endif
406 {
407 s_cert_file=NULL;
408 s_key_file=NULL;
409 s_dcert_file=NULL;
410 s_dkey_file=NULL;
411 }
412
413 SSL_load_error_strings();
414 SSLeay_add_ssl_algorithms();
415
416 ctx=SSL_CTX_new(meth);
417 if (ctx == NULL)
418 {
419 ERR_print_errors(bio_err);
420 goto end;
421 }
422
423 SSL_CTX_set_quiet_shutdown(ctx,1);
424 if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
425 if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
426 SSL_CTX_set_options(ctx,off);
427 if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
428
429 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
430
431 SSL_CTX_sess_set_cache_size(ctx,128);
432
433 #if 0
434 if (cipher == NULL) cipher=getenv("SSL_CIPHER");
435 #endif
436
437 #if 0
438 if (s_cert_file == NULL)
439 {
440 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
441 goto end;
442 }
443 #endif
444
445 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
446 (!SSL_CTX_set_default_verify_paths(ctx)))
447 {
448 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
449 ERR_print_errors(bio_err);
450 /* goto end; */
451 }
452
453 #ifndef NO_DH
454 /* EAY EAY EAY evil hack */
455 dh=load_dh_param();
456 if (dh != NULL)
457 {
458 BIO_printf(bio_s_out,"Setting temp DH parameters\n");
459 }
460 else
461 {
462 BIO_printf(bio_s_out,"Using default temp DH parameters\n");
463 dh=get_dh512();
464 }
465 BIO_flush(bio_s_out);
466
467 SSL_CTX_set_tmp_dh(ctx,dh);
468 DH_free(dh);
469 #endif
470
471 if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
472 goto end;
473 if (s_dcert_file != NULL)
474 {
475 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
476 goto end;
477 }
478
479 #ifndef NO_RSA
480 #if 1
481 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
482 #else
483 if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
484 {
485 RSA *rsa;
486
487 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
488 BIO_flush(bio_s_out);
489
490 rsa=RSA_generate_key(512,RSA_F4,NULL);
491
492 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
493 {
494 ERR_print_errors(bio_err);
495 goto end;
496 }
497 RSA_free(rsa);
498 BIO_printf(bio_s_out,"\n");
499 }
500 #endif
501 #endif
502
503 if (cipher != NULL)
504 SSL_CTX_set_cipher_list(ctx,cipher);
505 SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
506
507 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
508
509 BIO_printf(bio_s_out,"ACCEPT\n");
510 if (www)
511 do_server(port,&accept_socket,www_body, context);
512 else
513 do_server(port,&accept_socket,sv_body, context);
514 print_stats(bio_s_out,ctx);
515 ret=0;
516 end:
517 if (ctx != NULL) SSL_CTX_free(ctx);
518 if (bio_s_out != NULL)
519 {
520 BIO_free(bio_s_out);
521 bio_s_out=NULL;
522 }
523 EXIT(ret);
524 }
525
526 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
527 {
528 BIO_printf(bio,"%4ld items in the session cache\n",
529 SSL_CTX_sess_number(ssl_ctx));
530 BIO_printf(bio,"%4d client connects (SSL_connect())\n",
531 SSL_CTX_sess_connect(ssl_ctx));
532 BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
533 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
534 BIO_printf(bio,"%4d client connects that finished\n",
535 SSL_CTX_sess_connect_good(ssl_ctx));
536 BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
537 SSL_CTX_sess_accept(ssl_ctx));
538 BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
539 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
540 BIO_printf(bio,"%4d server accepts that finished\n",
541 SSL_CTX_sess_accept_good(ssl_ctx));
542 BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
543 BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
544 BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
545 BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
546 BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
547 SSL_CTX_sess_cache_full(ssl_ctx),
548 SSL_CTX_sess_get_cache_size(ssl_ctx));
549 }
550
551 static int sv_body(char *hostname, int s, unsigned char *context)
552 {
553 char *buf=NULL;
554 fd_set readfds;
555 int ret=1,width;
556 int k,i;
557 unsigned long l;
558 SSL *con=NULL;
559 BIO *sbio;
560
561 if ((buf=Malloc(bufsize)) == NULL)
562 {
563 BIO_printf(bio_err,"out of memory\n");
564 goto err;
565 }
566 #ifdef FIONBIO
567 if (s_nbio)
568 {
569 unsigned long sl=1;
570
571 if (!s_quiet)
572 BIO_printf(bio_err,"turning on non blocking io\n");
573 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
574 ERR_print_errors(bio_err);
575 }
576 #endif
577
578 if (con == NULL) {
579 con=(SSL *)SSL_new(ctx);
580 if(context)
581 SSL_set_session_id_context(con, context,
582 strlen((char *)context));
583 }
584 SSL_clear(con);
585
586 sbio=BIO_new_socket(s,BIO_NOCLOSE);
587 if (s_nbio_test)
588 {
589 BIO *test;
590
591 test=BIO_new(BIO_f_nbio_test());
592 sbio=BIO_push(test,sbio);
593 }
594 SSL_set_bio(con,sbio,sbio);
595 SSL_set_accept_state(con);
596 /* SSL_set_fd(con,s); */
597
598 if (s_debug)
599 {
600 con->debug=1;
601 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
602 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
603 }
604
605 width=s+1;
606 for (;;)
607 {
608 FD_ZERO(&readfds);
609 #ifndef WINDOWS
610 FD_SET(fileno(stdin),&readfds);
611 #endif
612 FD_SET(s,&readfds);
613 i=select(width,&readfds,NULL,NULL,NULL);
614 if (i <= 0) continue;
615 if (FD_ISSET(fileno(stdin),&readfds))
616 {
617 i=read(fileno(stdin),buf,bufsize);
618 if (!s_quiet)
619 {
620 if ((i <= 0) || (buf[0] == 'Q'))
621 {
622 BIO_printf(bio_s_out,"DONE\n");
623 SHUTDOWN(s);
624 close_accept_socket();
625 ret= -11;
626 goto err;
627 }
628 if ((i <= 0) || (buf[0] == 'q'))
629 {
630 BIO_printf(bio_s_out,"DONE\n");
631 SHUTDOWN(s);
632 /* close_accept_socket();
633 ret= -11;*/
634 goto err;
635 }
636 if ((buf[0] == 'r') &&
637 ((buf[1] == '\n') || (buf[1] == '\r')))
638 {
639 SSL_renegotiate(con);
640 i=SSL_do_handshake(con);
641 printf("SSL_do_handshake -> %d\n",i);
642 i=0; /*13; */
643 continue;
644 /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
645 }
646 if ((buf[0] == 'R') &&
647 ((buf[1] == '\n') || (buf[1] == '\r')))
648 {
649 SSL_set_verify(con,
650 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
651 SSL_renegotiate(con);
652 i=SSL_do_handshake(con);
653 printf("SSL_do_handshake -> %d\n",i);
654 i=0; /* 13; */
655 continue;
656 /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
657 }
658 if (buf[0] == 'P')
659 {
660 static char *str="Lets print some clear text\n";
661 BIO_write(SSL_get_wbio(con),str,strlen(str));
662 }
663 if (buf[0] == 'S')
664 {
665 print_stats(bio_s_out,SSL_get_SSL_CTX(con));
666 }
667 }
668 l=k=0;
669 for (;;)
670 {
671 /* should do a select for the write */
672 #ifdef RENEG
673 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
674 #endif
675 k=SSL_write(con,&(buf[l]),(unsigned int)i);
676 switch (SSL_get_error(con,k))
677 {
678 case SSL_ERROR_NONE:
679 break;
680 case SSL_ERROR_WANT_WRITE:
681 case SSL_ERROR_WANT_READ:
682 case SSL_ERROR_WANT_X509_LOOKUP:
683 BIO_printf(bio_s_out,"Write BLOCK\n");
684 break;
685 case SSL_ERROR_SYSCALL:
686 case SSL_ERROR_SSL:
687 BIO_printf(bio_s_out,"ERROR\n");
688 ERR_print_errors(bio_err);
689 ret=1;
690 goto err;
691 /* break; */
692 case SSL_ERROR_ZERO_RETURN:
693 BIO_printf(bio_s_out,"DONE\n");
694 ret=1;
695 goto err;
696 }
697 l+=k;
698 i-=k;
699 if (i <= 0) break;
700 }
701 }
702 if (FD_ISSET(s,&readfds))
703 {
704 if (!SSL_is_init_finished(con))
705 {
706 i=init_ssl_connection(con);
707
708 if (i < 0)
709 {
710 ret=0;
711 goto err;
712 }
713 else if (i == 0)
714 {
715 ret=1;
716 goto err;
717 }
718 }
719 else
720 {
721 again:
722 i=SSL_read(con,(char *)buf,bufsize);
723 switch (SSL_get_error(con,i))
724 {
725 case SSL_ERROR_NONE:
726 write(fileno(stdout),buf,
727 (unsigned int)i);
728 if (SSL_pending(con)) goto again;
729 break;
730 case SSL_ERROR_WANT_WRITE:
731 case SSL_ERROR_WANT_READ:
732 case SSL_ERROR_WANT_X509_LOOKUP:
733 BIO_printf(bio_s_out,"Read BLOCK\n");
734 break;
735 case SSL_ERROR_SYSCALL:
736 case SSL_ERROR_SSL:
737 BIO_printf(bio_s_out,"ERROR\n");
738 ERR_print_errors(bio_err);
739 ret=1;
740 goto err;
741 case SSL_ERROR_ZERO_RETURN:
742 BIO_printf(bio_s_out,"DONE\n");
743 ret=1;
744 goto err;
745 }
746 }
747 }
748 }
749 err:
750 BIO_printf(bio_s_out,"shutting down SSL\n");
751 #if 1
752 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
753 #else
754 SSL_shutdown(con);
755 #endif
756 if (con != NULL) SSL_free(con);
757 BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
758 if (buf != NULL)
759 {
760 memset(buf,0,bufsize);
761 Free(buf);
762 }
763 if (ret >= 0)
764 BIO_printf(bio_s_out,"ACCEPT\n");
765 return(ret);
766 }
767
768 static void close_accept_socket(void)
769 {
770 BIO_printf(bio_err,"shutdown accept socket\n");
771 if (accept_socket >= 0)
772 {
773 SHUTDOWN2(accept_socket);
774 }
775 }
776
777 static int init_ssl_connection(SSL *con)
778 {
779 int i;
780 const char *str;
781 X509 *peer;
782 long verify_error;
783 MS_STATIC char buf[BUFSIZ];
784
785 if ((i=SSL_accept(con)) <= 0)
786 {
787 if (BIO_sock_should_retry(i))
788 {
789 BIO_printf(bio_s_out,"DELAY\n");
790 return(1);
791 }
792
793 BIO_printf(bio_err,"ERROR\n");
794 verify_error=SSL_get_verify_result(con);
795 if (verify_error != X509_V_OK)
796 {
797 BIO_printf(bio_err,"verify error:%s\n",
798 X509_verify_cert_error_string(verify_error));
799 }
800 else
801 ERR_print_errors(bio_err);
802 return(0);
803 }
804
805 PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
806
807 peer=SSL_get_peer_certificate(con);
808 if (peer != NULL)
809 {
810 BIO_printf(bio_s_out,"Client certificate\n");
811 PEM_write_bio_X509(bio_s_out,peer);
812 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
813 BIO_printf(bio_s_out,"subject=%s\n",buf);
814 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
815 BIO_printf(bio_s_out,"issuer=%s\n",buf);
816 X509_free(peer);
817 }
818
819 if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
820 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
821 str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
822 BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
823 if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
824 if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
825 TLS1_FLAGS_TLS_PADDING_BUG)
826 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
827
828 return(1);
829 }
830
831 #ifndef NO_DH
832 static DH *load_dh_param(void)
833 {
834 DH *ret=NULL;
835 BIO *bio;
836
837 if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
838 goto err;
839 ret=PEM_read_bio_DHparams(bio,NULL,NULL);
840 err:
841 if (bio != NULL) BIO_free(bio);
842 return(ret);
843 }
844 #endif
845
846 #if 0
847 static int load_CA(SSL_CTX *ctx, char *file)
848 {
849 FILE *in;
850 X509 *x=NULL;
851
852 if ((in=fopen(file,"r")) == NULL)
853 return(0);
854
855 for (;;)
856 {
857 if (PEM_read_X509(in,&x,NULL) == NULL)
858 break;
859 SSL_CTX_add_client_CA(ctx,x);
860 }
861 if (x != NULL) X509_free(x);
862 fclose(in);
863 return(1);
864 }
865 #endif
866
867 static int www_body(char *hostname, int s, unsigned char *context)
868 {
869 char *buf=NULL;
870 int ret=1;
871 int i,j,k,blank,dot;
872 struct stat st_buf;
873 SSL *con;
874 SSL_CIPHER *c;
875 BIO *io,*ssl_bio,*sbio;
876 long total_bytes;
877
878 buf=Malloc(bufsize);
879 if (buf == NULL) return(0);
880 io=BIO_new(BIO_f_buffer());
881 ssl_bio=BIO_new(BIO_f_ssl());
882 if ((io == NULL) || (ssl_bio == NULL)) goto err;
883
884 #ifdef FIONBIO
885 if (s_nbio)
886 {
887 unsigned long sl=1;
888
889 if (!s_quiet)
890 BIO_printf(bio_err,"turning on non blocking io\n");
891 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
892 ERR_print_errors(bio_err);
893 }
894 #endif
895
896 /* lets make the output buffer a reasonable size */
897 if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
898
899 if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
900 if(context) SSL_set_session_id_context(con, context,
901 strlen((char *)context));
902
903 sbio=BIO_new_socket(s,BIO_NOCLOSE);
904 if (s_nbio_test)
905 {
906 BIO *test;
907
908 test=BIO_new(BIO_f_nbio_test());
909 sbio=BIO_push(test,sbio);
910 }
911 SSL_set_bio(con,sbio,sbio);
912 SSL_set_accept_state(con);
913
914 /* SSL_set_fd(con,s); */
915 BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
916 BIO_push(io,ssl_bio);
917
918 if (s_debug)
919 {
920 con->debug=1;
921 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
922 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
923 }
924
925 blank=0;
926 for (;;)
927 {
928 if (hack)
929 {
930 i=SSL_accept(con);
931
932 switch (SSL_get_error(con,i))
933 {
934 case SSL_ERROR_NONE:
935 break;
936 case SSL_ERROR_WANT_WRITE:
937 case SSL_ERROR_WANT_READ:
938 case SSL_ERROR_WANT_X509_LOOKUP:
939 continue;
940 case SSL_ERROR_SYSCALL:
941 case SSL_ERROR_SSL:
942 case SSL_ERROR_ZERO_RETURN:
943 ret=1;
944 goto err;
945 /* break; */
946 }
947
948 SSL_renegotiate(con);
949 SSL_write(con,NULL,0);
950 }
951
952 i=BIO_gets(io,buf,bufsize-1);
953 if (i < 0) /* error */
954 {
955 if (!BIO_should_retry(io))
956 {
957 if (!s_quiet)
958 ERR_print_errors(bio_err);
959 goto err;
960 }
961 else
962 {
963 BIO_printf(bio_s_out,"read R BLOCK\n");
964 #ifndef MSDOS
965 sleep(1);
966 #endif
967 continue;
968 }
969 }
970 else if (i == 0) /* end of input */
971 {
972 ret=1;
973 goto end;
974 }
975
976 /* else we have data */
977 if ( ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
978 ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
979 {
980 char *p;
981 X509 *peer;
982 STACK_OF(SSL_CIPHER) *sk;
983 static char *space=" ";
984
985 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
986 BIO_puts(io,"<HTML><BODY BGCOLOR=ffffff>\n");
987 BIO_puts(io,"<pre>\n");
988 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
989 BIO_puts(io,"\n");
990 for (i=0; i<local_argc; i++)
991 {
992 BIO_puts(io,local_argv[i]);
993 BIO_write(io," ",1);
994 }
995 BIO_puts(io,"\n");
996
997 /* The following is evil and should not really
998 * be done */
999 BIO_printf(io,"Ciphers supported in s_server binary\n");
1000 sk=SSL_get_ciphers(con);
1001 j=sk_SSL_CIPHER_num(sk);
1002 for (i=0; i<j; i++)
1003 {
1004 c=sk_SSL_CIPHER_value(sk,i);
1005 BIO_printf(io,"%-11s:%-25s",
1006 SSL_CIPHER_get_version(c),
1007 SSL_CIPHER_get_name(c));
1008 if ((((i+1)%2) == 0) && (i+1 != j))
1009 BIO_puts(io,"\n");
1010 }
1011 BIO_puts(io,"\n");
1012 p=SSL_get_shared_ciphers(con,buf,bufsize);
1013 if (p != NULL)
1014 {
1015 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1016 j=i=0;
1017 while (*p)
1018 {
1019 if (*p == ':')
1020 {
1021 BIO_write(io,space,26-j);
1022 i++;
1023 j=0;
1024 BIO_write(io,((i%3)?" ":"\n"),1);
1025 }
1026 else
1027 {
1028 BIO_write(io,p,1);
1029 j++;
1030 }
1031 p++;
1032 }
1033 BIO_puts(io,"\n");
1034 }
1035 BIO_printf(io,((con->hit)
1036 ?"---\nReused, "
1037 :"---\nNew, "));
1038 c=SSL_get_current_cipher(con);
1039 BIO_printf(io,"%s, Cipher is %s\n",
1040 SSL_CIPHER_get_version(c),
1041 SSL_CIPHER_get_name(c));
1042 SSL_SESSION_print(io,SSL_get_session(con));
1043 BIO_printf(io,"---\n");
1044 print_stats(io,SSL_get_SSL_CTX(con));
1045 BIO_printf(io,"---\n");
1046 peer=SSL_get_peer_certificate(con);
1047 if (peer != NULL)
1048 {
1049 BIO_printf(io,"Client certificate\n");
1050 X509_print(io,peer);
1051 PEM_write_bio_X509(io,peer);
1052 }
1053 else
1054 BIO_puts(io,"no client certificate available\n");
1055 BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1056 break;
1057 }
1058 else if ((www == 2) && (strncmp("GET ",buf,4) == 0))
1059 {
1060 BIO *file;
1061 char *p,*e;
1062 static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1063
1064 /* skip the '/' */
1065 p= &(buf[5]);
1066 dot=0;
1067 for (e=p; *e != '\0'; e++)
1068 {
1069 if (e[0] == ' ') break;
1070 if ( (e[0] == '.') &&
1071 (strncmp(&(e[-1]),"/../",4) == 0))
1072 dot=1;
1073 }
1074
1075
1076 if (*e == '\0')
1077 {
1078 BIO_puts(io,text);
1079 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1080 break;
1081 }
1082 *e='\0';
1083
1084 if (dot)
1085 {
1086 BIO_puts(io,text);
1087 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1088 break;
1089 }
1090
1091 if (*p == '/')
1092 {
1093 BIO_puts(io,text);
1094 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1095 break;
1096 }
1097
1098 /* append if a directory lookup */
1099 if (e[-1] == '/')
1100 strcat(p,"index.html");
1101
1102 /* if a directory, do the index thang */
1103 if (stat(p,&st_buf) < 0)
1104 {
1105 BIO_puts(io,text);
1106 BIO_printf(io,"Error accessing '%s'\r\n",p);
1107 ERR_print_errors(io);
1108 break;
1109 }
1110 if (S_ISDIR(st_buf.st_mode))
1111 {
1112 strcat(p,"/index.html");
1113 }
1114
1115 if ((file=BIO_new_file(p,"r")) == NULL)
1116 {
1117 BIO_puts(io,text);
1118 BIO_printf(io,"Error opening '%s'\r\n",p);
1119 ERR_print_errors(io);
1120 break;
1121 }
1122
1123 if (!s_quiet)
1124 BIO_printf(bio_err,"FILE:%s\n",p);
1125
1126 i=strlen(p);
1127 if ( ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1128 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1129 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1130 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1131 else
1132 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1133 /* send the file */
1134 total_bytes=0;
1135 for (;;)
1136 {
1137 i=BIO_read(file,buf,bufsize);
1138 if (i <= 0) break;
1139
1140 #ifdef RENEG
1141 total_bytes+=i;
1142 fprintf(stderr,"%d\n",i);
1143 if (total_bytes > 3*1024)
1144 {
1145 total_bytes=0;
1146 fprintf(stderr,"RENEGOTIATE\n");
1147 SSL_renegotiate(con);
1148 }
1149 #endif
1150
1151 for (j=0; j<i; )
1152 {
1153 #ifdef RENEG
1154 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1155 #endif
1156 k=BIO_write(io,&(buf[j]),i-j);
1157 if (k <= 0)
1158 {
1159 if (!BIO_should_retry(io))
1160 goto write_error;
1161 else
1162 {
1163 BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1164 }
1165 }
1166 else
1167 {
1168 j+=k;
1169 }
1170 }
1171 }
1172 write_error:
1173 BIO_free(file);
1174 break;
1175 }
1176 }
1177
1178 for (;;)
1179 {
1180 i=(int)BIO_flush(io);
1181 if (i <= 0)
1182 {
1183 if (!BIO_should_retry(io))
1184 break;
1185 }
1186 else
1187 break;
1188 }
1189 end:
1190 #if 1
1191 /* make sure we re-use sessions */
1192 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1193 #else
1194 /* This kills performace */
1195 /* SSL_shutdown(con); A shutdown gets sent in the
1196 * BIO_free_all(io) procession */
1197 #endif
1198
1199 err:
1200
1201 if (ret >= 0)
1202 BIO_printf(bio_s_out,"ACCEPT\n");
1203
1204 if (buf != NULL) Free(buf);
1205 if (io != NULL) BIO_free_all(io);
1206 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1207 return(ret);
1208 }
1209
1210 #ifndef NO_RSA
1211 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export, int keylength)
1212 {
1213 static RSA *rsa_tmp=NULL;
1214
1215 if (rsa_tmp == NULL)
1216 {
1217 if (!s_quiet)
1218 {
1219 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1220 BIO_flush(bio_err);
1221 }
1222 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1223 if (!s_quiet)
1224 {
1225 BIO_printf(bio_err,"\n");
1226 BIO_flush(bio_err);
1227 }
1228 }
1229 return(rsa_tmp);
1230 }
1231 #endif
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