ca22b2f2ca0e0f4e4e55d95f0c2ba7521965bb80
[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 <assert.h>
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 #include <sys/types.h>
64 #include <sys/stat.h>
65 #ifdef NO_STDIO
66 #define APPS_WIN16
67 #endif
68
69 /* With IPv6, it looks like Digital has mixed up the proper order of
70    recursive header file inclusion, resulting in the compiler complaining
71    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
72    is needed to have fileno() declared correctly...  So let's define u_int */
73 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
74 #define __U_INT
75 typedef unsigned int u_int;
76 #endif
77
78 #include <openssl/lhash.h>
79 #include <openssl/bn.h>
80 #define USE_SOCKETS
81 #include "apps.h"
82 #include <openssl/err.h>
83 #include <openssl/pem.h>
84 #include <openssl/x509.h>
85 #include <openssl/ssl.h>
86 #include "s_apps.h"
87
88 #ifdef WINDOWS
89 #include <conio.h>
90 #endif
91
92 #if (defined(VMS) && __VMS_VER < 70000000)
93 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
94 #undef FIONBIO
95 #endif
96
97 #if defined(NO_RSA) && !defined(NO_SSL2)
98 #define NO_SSL2
99 #endif
100
101 #ifndef NO_RSA
102 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
103 #endif
104 static int sv_body(char *hostname, int s, unsigned char *context);
105 static int www_body(char *hostname, int s, unsigned char *context);
106 static void close_accept_socket(void );
107 static void sv_usage(void);
108 static int init_ssl_connection(SSL *s);
109 static void print_stats(BIO *bp,SSL_CTX *ctx);
110 #ifndef NO_DH
111 static DH *load_dh_param(char *dhfile);
112 static DH *get_dh512(void);
113 #endif
114 #ifdef MONOLITH
115 static void s_server_init(void);
116 #endif
117
118 #ifndef S_ISDIR
119 # if defined(_S_IFMT) && defined(_S_IFDIR)
120 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
121 # else
122 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
123 # endif
124 #endif
125
126 #ifndef NO_DH
127 static unsigned char dh512_p[]={
128         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
129         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
130         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
131         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
132         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
133         0x47,0x74,0xE8,0x33,
134         };
135 static unsigned char dh512_g[]={
136         0x02,
137         };
138
139 static DH *get_dh512(void)
140         {
141         DH *dh=NULL;
142
143         if ((dh=DH_new()) == NULL) return(NULL);
144         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
145         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
146         if ((dh->p == NULL) || (dh->g == NULL))
147                 return(NULL);
148         return(dh);
149         }
150 #endif
151
152 /* static int load_CA(SSL_CTX *ctx, char *file);*/
153
154 #undef BUFSIZZ
155 #define BUFSIZZ 16*1024
156 static int bufsize=BUFSIZZ;
157 static int accept_socket= -1;
158
159 #define TEST_CERT       "server.pem"
160 #undef PROG
161 #define PROG            s_server_main
162
163 extern int verify_depth;
164
165 static char *cipher=NULL;
166 static int s_server_verify=SSL_VERIFY_NONE;
167 static int s_server_session_id_context = 1; /* anything will do */
168 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
169 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
170 #ifdef FIONBIO
171 static int s_nbio=0;
172 #endif
173 static int s_nbio_test=0;
174 int s_crlf=0;
175 static SSL_CTX *ctx=NULL;
176 static int www=0;
177
178 static BIO *bio_s_out=NULL;
179 static int s_debug=0;
180 static int s_quiet=0;
181
182 static int hack=0;
183
184 #ifdef MONOLITH
185 static void s_server_init(void)
186         {
187         accept_socket=-1;
188         cipher=NULL;
189         s_server_verify=SSL_VERIFY_NONE;
190         s_dcert_file=NULL;
191         s_dkey_file=NULL;
192         s_cert_file=TEST_CERT;
193         s_key_file=NULL;
194 #ifdef FIONBIO
195         s_nbio=0;
196 #endif
197         s_nbio_test=0;
198         ctx=NULL;
199         www=0;
200
201         bio_s_out=NULL;
202         s_debug=0;
203         s_quiet=0;
204         hack=0;
205         }
206 #endif
207
208 static void sv_usage(void)
209         {
210         BIO_printf(bio_err,"usage: s_server [args ...]\n");
211         BIO_printf(bio_err,"\n");
212         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
213         BIO_printf(bio_err," -context arg  - set session ID context\n");
214         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
215         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
216         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
217         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
218         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
219         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
220         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
221         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
222         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
223         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
224 #ifdef FIONBIO
225         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
226 #endif
227         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
228         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
229         BIO_printf(bio_err," -debug        - Print more output\n");
230         BIO_printf(bio_err," -state        - Print the SSL states\n");
231         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
232         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
233         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
234         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
235         BIO_printf(bio_err," -quiet        - No server output\n");
236         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
237         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
238         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
239         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
240         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
241         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
242         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
243 #ifndef NO_DH
244         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
245 #endif
246         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
247         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
248         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
249         }
250
251 static int local_argc=0;
252 static char **local_argv;
253
254 #ifdef CHARSET_EBCDIC
255 static int ebcdic_new(BIO *bi);
256 static int ebcdic_free(BIO *a);
257 static int ebcdic_read(BIO *b, char *out, int outl);
258 static int ebcdic_write(BIO *b, char *in, int inl);
259 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
260 static int ebcdic_gets(BIO *bp, char *buf, int size);
261 static int ebcdic_puts(BIO *bp, char *str);
262
263 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
264 static BIO_METHOD methods_ebcdic=
265         {
266         BIO_TYPE_EBCDIC_FILTER,
267         "EBCDIC/ASCII filter",
268         ebcdic_write,
269         ebcdic_read,
270         ebcdic_puts,
271         ebcdic_gets,
272         ebcdic_ctrl,
273         ebcdic_new,
274         ebcdic_free,
275         };
276
277 typedef struct
278 {
279         size_t  alloced;
280         char    buff[1];
281 } EBCDIC_OUTBUFF;
282
283 BIO_METHOD *BIO_f_ebcdic_filter()
284 {
285         return(&methods_ebcdic);
286 }
287
288 static int ebcdic_new(BIO *bi)
289 {
290         EBCDIC_OUTBUFF *wbuf;
291
292         wbuf = (EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
293         wbuf->alloced = 1024;
294         wbuf->buff[0] = '\0';
295
296         bi->ptr=(char *)wbuf;
297         bi->init=1;
298         bi->flags=0;
299         return(1);
300 }
301
302 static int ebcdic_free(BIO *a)
303 {
304         if (a == NULL) return(0);
305         if (a->ptr != NULL)
306                 Free(a->ptr);
307         a->ptr=NULL;
308         a->init=0;
309         a->flags=0;
310         return(1);
311 }
312         
313 static int ebcdic_read(BIO *b, char *out, int outl)
314 {
315         int ret=0;
316
317         if (out == NULL || outl == 0) return(0);
318         if (b->next_bio == NULL) return(0);
319
320         ret=BIO_read(b->next_bio,out,outl);
321         if (ret > 0)
322                 ascii2ebcdic(out,out,ret);
323         return(ret);
324 }
325
326 static int ebcdic_write(BIO *b, char *in, int inl)
327 {
328         EBCDIC_OUTBUFF *wbuf;
329         int ret=0;
330         int num;
331         unsigned char n;
332
333         if ((in == NULL) || (inl <= 0)) return(0);
334         if (b->next_bio == NULL) return(0);
335
336         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
337
338         if (inl > (num = wbuf->alloced))
339         {
340                 num = num + num;  /* double the size */
341                 if (num < inl)
342                         num = inl;
343                 Free((char*)wbuf);
344                 wbuf=(EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + num);
345
346                 wbuf->alloced = num;
347                 wbuf->buff[0] = '\0';
348
349                 b->ptr=(char *)wbuf;
350         }
351
352         ebcdic2ascii(wbuf->buff, in, inl);
353
354         ret=BIO_write(b->next_bio, wbuf->buff, inl);
355
356         return(ret);
357 }
358
359 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
360 {
361         long ret;
362
363         if (b->next_bio == NULL) return(0);
364         switch (cmd)
365         {
366         case BIO_CTRL_DUP:
367                 ret=0L;
368                 break;
369         default:
370                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
371                 break;
372         }
373         return(ret);
374 }
375
376 static int ebcdic_gets(BIO *bp, char *buf, int size)
377 {
378         int i, ret;
379         if (bp->next_bio == NULL) return(0);
380 /*      return(BIO_gets(bp->next_bio,buf,size));*/
381         for (i=0; i<size-1; ++i)
382         {
383                 ret = ebcdic_read(bp,&buf[i],1);
384                 if (ret <= 0)
385                         break;
386                 else if (buf[i] == '\n')
387                 {
388                         ++i;
389                         break;
390                 }
391         }
392         if (i < size)
393                 buf[i] = '\0';
394         return (ret < 0 && i == 0) ? ret : i;
395 }
396
397 static int ebcdic_puts(BIO *bp, char *str)
398 {
399         if (bp->next_bio == NULL) return(0);
400         return ebcdic_write(bp, str, strlen(str));
401 }
402 #endif
403
404 int MAIN(int argc, char *argv[])
405         {
406         short port=PORT;
407         char *CApath=NULL,*CAfile=NULL;
408         char *context = NULL;
409         char *dhfile = NULL;
410         int badop=0,bugs=0;
411         int ret=1;
412         int off=0;
413         int no_tmp_rsa=0,no_dhe=0,nocert=0;
414         int state=0;
415         SSL_METHOD *meth=NULL;
416 #ifndef NO_DH
417         DH *dh=NULL;
418 #endif
419
420 #if !defined(NO_SSL2) && !defined(NO_SSL3)
421         meth=SSLv23_server_method();
422 #elif !defined(NO_SSL3)
423         meth=SSLv3_server_method();
424 #elif !defined(NO_SSL2)
425         meth=SSLv2_server_method();
426 #endif
427
428         local_argc=argc;
429         local_argv=argv;
430
431         apps_startup();
432 #ifdef MONOLITH
433         s_server_init();
434 #endif
435
436         if (bio_err == NULL)
437                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
438
439         verify_depth=0;
440 #ifdef FIONBIO
441         s_nbio=0;
442 #endif
443         s_nbio_test=0;
444
445         argc--;
446         argv++;
447
448         while (argc >= 1)
449                 {
450                 if      ((strcmp(*argv,"-port") == 0) ||
451                          (strcmp(*argv,"-accept") == 0))
452                         {
453                         if (--argc < 1) goto bad;
454                         if (!extract_port(*(++argv),&port))
455                                 goto bad;
456                         }
457                 else if (strcmp(*argv,"-verify") == 0)
458                         {
459                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
460                         if (--argc < 1) goto bad;
461                         verify_depth=atoi(*(++argv));
462                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
463                         }
464                 else if (strcmp(*argv,"-Verify") == 0)
465                         {
466                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
467                                 SSL_VERIFY_CLIENT_ONCE;
468                         if (--argc < 1) goto bad;
469                         verify_depth=atoi(*(++argv));
470                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
471                         }
472                 else if (strcmp(*argv,"-context") == 0)
473                         {
474                         if (--argc < 1) goto bad;
475                         context= *(++argv);
476                         }
477                 else if (strcmp(*argv,"-cert") == 0)
478                         {
479                         if (--argc < 1) goto bad;
480                         s_cert_file= *(++argv);
481                         }
482                 else if (strcmp(*argv,"-key") == 0)
483                         {
484                         if (--argc < 1) goto bad;
485                         s_key_file= *(++argv);
486                         }
487                 else if (strcmp(*argv,"-dhparam") == 0)
488                         {
489                         if (--argc < 1) goto bad;
490                         dhfile = *(++argv);
491                         }
492                 else if (strcmp(*argv,"-dcert") == 0)
493                         {
494                         if (--argc < 1) goto bad;
495                         s_dcert_file= *(++argv);
496                         }
497                 else if (strcmp(*argv,"-dkey") == 0)
498                         {
499                         if (--argc < 1) goto bad;
500                         s_dkey_file= *(++argv);
501                         }
502                 else if (strcmp(*argv,"-nocert") == 0)
503                         {
504                         nocert=1;
505                         }
506                 else if (strcmp(*argv,"-CApath") == 0)
507                         {
508                         if (--argc < 1) goto bad;
509                         CApath= *(++argv);
510                         }
511                 else if (strcmp(*argv,"-cipher") == 0)
512                         {
513                         if (--argc < 1) goto bad;
514                         cipher= *(++argv);
515                         }
516                 else if (strcmp(*argv,"-CAfile") == 0)
517                         {
518                         if (--argc < 1) goto bad;
519                         CAfile= *(++argv);
520                         }
521 #ifdef FIONBIO  
522                 else if (strcmp(*argv,"-nbio") == 0)
523                         { s_nbio=1; }
524 #endif
525                 else if (strcmp(*argv,"-nbio_test") == 0)
526                         {
527 #ifdef FIONBIO  
528                         s_nbio=1;
529 #endif
530                         s_nbio_test=1;
531                         }
532                 else if (strcmp(*argv,"-debug") == 0)
533                         { s_debug=1; }
534                 else if (strcmp(*argv,"-hack") == 0)
535                         { hack=1; }
536                 else if (strcmp(*argv,"-state") == 0)
537                         { state=1; }
538                 else if (strcmp(*argv,"-crlf") == 0)
539                         { s_crlf=1; }
540                 else if (strcmp(*argv,"-quiet") == 0)
541                         { s_quiet=1; }
542                 else if (strcmp(*argv,"-bugs") == 0)
543                         { bugs=1; }
544                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
545                         { no_tmp_rsa=1; }
546                 else if (strcmp(*argv,"-no_dhe") == 0)
547                         { no_dhe=1; }
548                 else if (strcmp(*argv,"-www") == 0)
549                         { www=1; }
550                 else if (strcmp(*argv,"-WWW") == 0)
551                         { www=2; }
552                 else if (strcmp(*argv,"-no_ssl2") == 0)
553                         { off|=SSL_OP_NO_SSLv2; }
554                 else if (strcmp(*argv,"-no_ssl3") == 0)
555                         { off|=SSL_OP_NO_SSLv3; }
556                 else if (strcmp(*argv,"-no_tls1") == 0)
557                         { off|=SSL_OP_NO_TLSv1; }
558 #ifndef NO_SSL2
559                 else if (strcmp(*argv,"-ssl2") == 0)
560                         { meth=SSLv2_server_method(); }
561 #endif
562 #ifndef NO_SSL3
563                 else if (strcmp(*argv,"-ssl3") == 0)
564                         { meth=SSLv3_server_method(); }
565 #endif
566 #ifndef NO_TLS1
567                 else if (strcmp(*argv,"-tls1") == 0)
568                         { meth=TLSv1_server_method(); }
569 #endif
570                 else
571                         {
572                         BIO_printf(bio_err,"unknown option %s\n",*argv);
573                         badop=1;
574                         break;
575                         }
576                 argc--;
577                 argv++;
578                 }
579         if (badop)
580                 {
581 bad:
582                 sv_usage();
583                 goto end;
584                 }
585
586         if (bio_s_out == NULL)
587                 {
588                 if (s_quiet && !s_debug)
589                         {
590                         bio_s_out=BIO_new(BIO_s_null());
591                         }
592                 else
593                         {
594                         if (bio_s_out == NULL)
595                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
596                         }
597                 }
598
599 #if !defined(NO_RSA) || !defined(NO_DSA)
600         if (nocert)
601 #endif
602                 {
603                 s_cert_file=NULL;
604                 s_key_file=NULL;
605                 s_dcert_file=NULL;
606                 s_dkey_file=NULL;
607                 }
608
609         SSL_load_error_strings();
610         SSLeay_add_ssl_algorithms();
611
612         ctx=SSL_CTX_new(meth);
613         if (ctx == NULL)
614                 {
615                 ERR_print_errors(bio_err);
616                 goto end;
617                 }
618
619         SSL_CTX_set_quiet_shutdown(ctx,1);
620         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
621         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
622         SSL_CTX_set_options(ctx,off);
623         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
624
625         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
626
627         SSL_CTX_sess_set_cache_size(ctx,128);
628
629 #if 0
630         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
631 #endif
632
633 #if 0
634         if (s_cert_file == NULL)
635                 {
636                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
637                 goto end;
638                 }
639 #endif
640
641         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
642                 (!SSL_CTX_set_default_verify_paths(ctx)))
643                 {
644                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
645                 ERR_print_errors(bio_err);
646                 /* goto end; */
647                 }
648
649 #ifndef NO_DH
650         if (!no_dhe)
651                 {
652                 dh=load_dh_param(dhfile ? dhfile : s_cert_file);
653                 if (dh != NULL)
654                         {
655                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
656                         }
657                 else
658                         {
659                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
660                         dh=get_dh512();
661                         }
662                 (void)BIO_flush(bio_s_out);
663
664                 SSL_CTX_set_tmp_dh(ctx,dh);
665                 DH_free(dh);
666                 }
667 #endif
668         
669         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
670                 goto end;
671         if (s_dcert_file != NULL)
672                 {
673                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
674                         goto end;
675                 }
676
677 #ifndef NO_RSA
678 #if 1
679         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
680 #else
681         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
682                 {
683                 RSA *rsa;
684
685                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
686                 BIO_flush(bio_s_out);
687
688                 rsa=RSA_generate_key(512,RSA_F4,NULL);
689
690                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
691                         {
692                         ERR_print_errors(bio_err);
693                         goto end;
694                         }
695                 RSA_free(rsa);
696                 BIO_printf(bio_s_out,"\n");
697                 }
698 #endif
699 #endif
700
701         if (cipher != NULL)
702                 SSL_CTX_set_cipher_list(ctx,cipher);
703         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
704         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
705                 sizeof s_server_session_id_context);
706
707         if (CAfile != NULL)
708             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
709
710         BIO_printf(bio_s_out,"ACCEPT\n");
711         if (www)
712                 do_server(port,&accept_socket,www_body, context);
713         else
714                 do_server(port,&accept_socket,sv_body, context);
715         print_stats(bio_s_out,ctx);
716         ret=0;
717 end:
718         if (ctx != NULL) SSL_CTX_free(ctx);
719         if (bio_s_out != NULL)
720                 {
721                 BIO_free(bio_s_out);
722                 bio_s_out=NULL;
723                 }
724         EXIT(ret);
725         }
726
727 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
728         {
729         BIO_printf(bio,"%4ld items in the session cache\n",
730                 SSL_CTX_sess_number(ssl_ctx));
731         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
732                 SSL_CTX_sess_connect(ssl_ctx));
733         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
734                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
735         BIO_printf(bio,"%4d client connects that finished\n",
736                 SSL_CTX_sess_connect_good(ssl_ctx));
737         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
738                 SSL_CTX_sess_accept(ssl_ctx));
739         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
740                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
741         BIO_printf(bio,"%4d server accepts that finished\n",
742                 SSL_CTX_sess_accept_good(ssl_ctx));
743         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
744         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
745         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
746         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
747         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
748                 SSL_CTX_sess_cache_full(ssl_ctx),
749                 SSL_CTX_sess_get_cache_size(ssl_ctx));
750         }
751
752 static int sv_body(char *hostname, int s, unsigned char *context)
753         {
754         char *buf=NULL;
755         fd_set readfds;
756         int ret=1,width;
757         int k,i;
758         unsigned long l;
759         SSL *con=NULL;
760         BIO *sbio;
761 #ifdef WINDOWS
762         struct timeval tv;
763 #endif
764
765         if ((buf=Malloc(bufsize)) == NULL)
766                 {
767                 BIO_printf(bio_err,"out of memory\n");
768                 goto err;
769                 }
770 #ifdef FIONBIO  
771         if (s_nbio)
772                 {
773                 unsigned long sl=1;
774
775                 if (!s_quiet)
776                         BIO_printf(bio_err,"turning on non blocking io\n");
777                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
778                         ERR_print_errors(bio_err);
779                 }
780 #endif
781
782         if (con == NULL) {
783                 con=(SSL *)SSL_new(ctx);
784                 if(context)
785                       SSL_set_session_id_context(con, context,
786                                                  strlen((char *)context));
787         }
788         SSL_clear(con);
789
790         sbio=BIO_new_socket(s,BIO_NOCLOSE);
791         if (s_nbio_test)
792                 {
793                 BIO *test;
794
795                 test=BIO_new(BIO_f_nbio_test());
796                 sbio=BIO_push(test,sbio);
797                 }
798         SSL_set_bio(con,sbio,sbio);
799         SSL_set_accept_state(con);
800         /* SSL_set_fd(con,s); */
801
802         if (s_debug)
803                 {
804                 con->debug=1;
805                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
806                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
807                 }
808
809         width=s+1;
810         for (;;)
811                 {
812                 FD_ZERO(&readfds);
813 #ifndef WINDOWS
814                 FD_SET(fileno(stdin),&readfds);
815 #endif
816                 FD_SET(s,&readfds);
817                 /* Note: under VMS with SOCKETSHR the second parameter is
818                  * currently of type (int *) whereas under other systems
819                  * it is (void *) if you don't have a cast it will choke
820                  * the compiler: if you do have a cast then you can either
821                  * go for (int *) or (void *).
822                  */
823 #ifdef WINDOWS
824                 /* Under Windows we can't select on stdin: only
825                  * on sockets. As a workaround we timeout the select every
826                  * second and check for any keypress. In a proper Windows
827                  * application we wouldn't do this because it is inefficient.
828                  */
829                 tv.tv_sec = 1;
830                 tv.tv_usec = 0;
831                 i=select(width,(void *)&readfds,NULL,NULL,&tv);
832                 if((i < 0) || (!i && !_kbhit() ) )continue;
833                 if(_kbhit())
834 #else
835                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
836                 if (i <= 0) continue;
837                 if (FD_ISSET(fileno(stdin),&readfds))
838 #endif
839                         {
840                         if (s_crlf)
841                                 {
842                                 int j, lf_num;
843
844                                 i=read(fileno(stdin), buf, bufsize/2);
845                                 lf_num = 0;
846                                 /* both loops are skipped when i <= 0 */
847                                 for (j = 0; j < i; j++)
848                                         if (buf[j] == '\n')
849                                                 lf_num++;
850                                 for (j = i-1; j >= 0; j--)
851                                         {
852                                         buf[j+lf_num] = buf[j];
853                                         if (buf[j] == '\n')
854                                                 {
855                                                 lf_num--;
856                                                 i++;
857                                                 buf[j+lf_num] = '\r';
858                                                 }
859                                         }
860                                 assert(lf_num == 0);
861                                 }
862                         else
863                                 i=read(fileno(stdin),buf,bufsize);
864                         if (!s_quiet)
865                                 {
866                                 if ((i <= 0) || (buf[0] == 'Q'))
867                                         {
868                                         BIO_printf(bio_s_out,"DONE\n");
869                                         SHUTDOWN(s);
870                                         close_accept_socket();
871                                         ret= -11;
872                                         goto err;
873                                         }
874                                 if ((i <= 0) || (buf[0] == 'q'))
875                                         {
876                                         BIO_printf(bio_s_out,"DONE\n");
877                                         SHUTDOWN(s);
878         /*                              close_accept_socket();
879                                         ret= -11;*/
880                                         goto err;
881                                         }
882                                 if ((buf[0] == 'r') && 
883                                         ((buf[1] == '\n') || (buf[1] == '\r')))
884                                         {
885                                         SSL_renegotiate(con);
886                                         i=SSL_do_handshake(con);
887                                         printf("SSL_do_handshake -> %d\n",i);
888                                         i=0; /*13; */
889                                         continue;
890                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
891                                         }
892                                 if ((buf[0] == 'R') &&
893                                         ((buf[1] == '\n') || (buf[1] == '\r')))
894                                         {
895                                         SSL_set_verify(con,
896                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
897                                         SSL_renegotiate(con);
898                                         i=SSL_do_handshake(con);
899                                         printf("SSL_do_handshake -> %d\n",i);
900                                         i=0; /* 13; */
901                                         continue;
902                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
903                                         }
904                                 if (buf[0] == 'P')
905                                         {
906                                         static char *str="Lets print some clear text\n";
907                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
908                                         }
909                                 if (buf[0] == 'S')
910                                         {
911                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
912                                         }
913                                 }
914 #ifdef CHARSET_EBCDIC
915                         ebcdic2ascii(buf,buf,i);
916 #endif
917                         l=k=0;
918                         for (;;)
919                                 {
920                                 /* should do a select for the write */
921 #ifdef RENEG
922 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
923 #endif
924                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
925                                 switch (SSL_get_error(con,k))
926                                         {
927                                 case SSL_ERROR_NONE:
928                                         break;
929                                 case SSL_ERROR_WANT_WRITE:
930                                 case SSL_ERROR_WANT_READ:
931                                 case SSL_ERROR_WANT_X509_LOOKUP:
932                                         BIO_printf(bio_s_out,"Write BLOCK\n");
933                                         break;
934                                 case SSL_ERROR_SYSCALL:
935                                 case SSL_ERROR_SSL:
936                                         BIO_printf(bio_s_out,"ERROR\n");
937                                         ERR_print_errors(bio_err);
938                                         ret=1;
939                                         goto err;
940                                         /* break; */
941                                 case SSL_ERROR_ZERO_RETURN:
942                                         BIO_printf(bio_s_out,"DONE\n");
943                                         ret=1;
944                                         goto err;
945                                         }
946                                 l+=k;
947                                 i-=k;
948                                 if (i <= 0) break;
949                                 }
950                         }
951                 if (FD_ISSET(s,&readfds))
952                         {
953                         if (!SSL_is_init_finished(con))
954                                 {
955                                 i=init_ssl_connection(con);
956                                 
957                                 if (i < 0)
958                                         {
959                                         ret=0;
960                                         goto err;
961                                         }
962                                 else if (i == 0)
963                                         {
964                                         ret=1;
965                                         goto err;
966                                         }
967                                 }
968                         else
969                                 {
970 again:  
971                                 i=SSL_read(con,(char *)buf,bufsize);
972                                 switch (SSL_get_error(con,i))
973                                         {
974                                 case SSL_ERROR_NONE:
975 #ifdef CHARSET_EBCDIC
976                                         ascii2ebcdic(buf,buf,i);
977 #endif
978                                         write(fileno(stdout),buf,
979                                                 (unsigned int)i);
980                                         if (SSL_pending(con)) goto again;
981                                         break;
982                                 case SSL_ERROR_WANT_WRITE:
983                                 case SSL_ERROR_WANT_READ:
984                                 case SSL_ERROR_WANT_X509_LOOKUP:
985                                         BIO_printf(bio_s_out,"Read BLOCK\n");
986                                         break;
987                                 case SSL_ERROR_SYSCALL:
988                                 case SSL_ERROR_SSL:
989                                         BIO_printf(bio_s_out,"ERROR\n");
990                                         ERR_print_errors(bio_err);
991                                         ret=1;
992                                         goto err;
993                                 case SSL_ERROR_ZERO_RETURN:
994                                         BIO_printf(bio_s_out,"DONE\n");
995                                         ret=1;
996                                         goto err;
997                                         }
998                                 }
999                         }
1000                 }
1001 err:
1002         BIO_printf(bio_s_out,"shutting down SSL\n");
1003 #if 1
1004         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1005 #else
1006         SSL_shutdown(con);
1007 #endif
1008         if (con != NULL) SSL_free(con);
1009         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1010         if (buf != NULL)
1011                 {
1012                 memset(buf,0,bufsize);
1013                 Free(buf);
1014                 }
1015         if (ret >= 0)
1016                 BIO_printf(bio_s_out,"ACCEPT\n");
1017         return(ret);
1018         }
1019
1020 static void close_accept_socket(void)
1021         {
1022         BIO_printf(bio_err,"shutdown accept socket\n");
1023         if (accept_socket >= 0)
1024                 {
1025                 SHUTDOWN2(accept_socket);
1026                 }
1027         }
1028
1029 static int init_ssl_connection(SSL *con)
1030         {
1031         int i;
1032         const char *str;
1033         X509 *peer;
1034         long verify_error;
1035         MS_STATIC char buf[BUFSIZ];
1036
1037         if ((i=SSL_accept(con)) <= 0)
1038                 {
1039                 if (BIO_sock_should_retry(i))
1040                         {
1041                         BIO_printf(bio_s_out,"DELAY\n");
1042                         return(1);
1043                         }
1044
1045                 BIO_printf(bio_err,"ERROR\n");
1046                 verify_error=SSL_get_verify_result(con);
1047                 if (verify_error != X509_V_OK)
1048                         {
1049                         BIO_printf(bio_err,"verify error:%s\n",
1050                                 X509_verify_cert_error_string(verify_error));
1051                         }
1052                 else
1053                         ERR_print_errors(bio_err);
1054                 return(0);
1055                 }
1056
1057         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1058
1059         peer=SSL_get_peer_certificate(con);
1060         if (peer != NULL)
1061                 {
1062                 BIO_printf(bio_s_out,"Client certificate\n");
1063                 PEM_write_bio_X509(bio_s_out,peer);
1064                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1065                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1066                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1067                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1068                 X509_free(peer);
1069                 }
1070
1071         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1072                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1073         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1074         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1075         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1076         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1077                 TLS1_FLAGS_TLS_PADDING_BUG)
1078                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1079
1080         return(1);
1081         }
1082
1083 #ifndef NO_DH
1084 static DH *load_dh_param(char *dhfile)
1085         {
1086         DH *ret=NULL;
1087         BIO *bio;
1088
1089         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1090                 goto err;
1091         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1092 err:
1093         if (bio != NULL) BIO_free(bio);
1094         return(ret);
1095         }
1096 #endif
1097
1098 #if 0
1099 static int load_CA(SSL_CTX *ctx, char *file)
1100         {
1101         FILE *in;
1102         X509 *x=NULL;
1103
1104         if ((in=fopen(file,"r")) == NULL)
1105                 return(0);
1106
1107         for (;;)
1108                 {
1109                 if (PEM_read_X509(in,&x,NULL) == NULL)
1110                         break;
1111                 SSL_CTX_add_client_CA(ctx,x);
1112                 }
1113         if (x != NULL) X509_free(x);
1114         fclose(in);
1115         return(1);
1116         }
1117 #endif
1118
1119 static int www_body(char *hostname, int s, unsigned char *context)
1120         {
1121         char *buf=NULL;
1122         int ret=1;
1123         int i,j,k,blank,dot;
1124         struct stat st_buf;
1125         SSL *con;
1126         SSL_CIPHER *c;
1127         BIO *io,*ssl_bio,*sbio;
1128         long total_bytes;
1129
1130         buf=Malloc(bufsize);
1131         if (buf == NULL) return(0);
1132         io=BIO_new(BIO_f_buffer());
1133         ssl_bio=BIO_new(BIO_f_ssl());
1134         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1135
1136 #ifdef FIONBIO  
1137         if (s_nbio)
1138                 {
1139                 unsigned long sl=1;
1140
1141                 if (!s_quiet)
1142                         BIO_printf(bio_err,"turning on non blocking io\n");
1143                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1144                         ERR_print_errors(bio_err);
1145                 }
1146 #endif
1147
1148         /* lets make the output buffer a reasonable size */
1149         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1150
1151         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
1152         if(context) SSL_set_session_id_context(con, context,
1153                                                strlen((char *)context));
1154
1155         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1156         if (s_nbio_test)
1157                 {
1158                 BIO *test;
1159
1160                 test=BIO_new(BIO_f_nbio_test());
1161                 sbio=BIO_push(test,sbio);
1162                 }
1163         SSL_set_bio(con,sbio,sbio);
1164         SSL_set_accept_state(con);
1165
1166         /* SSL_set_fd(con,s); */
1167         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1168         BIO_push(io,ssl_bio);
1169 #ifdef CHARSET_EBCDIC
1170         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1171 #endif
1172
1173         if (s_debug)
1174                 {
1175                 con->debug=1;
1176                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1177                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1178                 }
1179
1180         blank=0;
1181         for (;;)
1182                 {
1183                 if (hack)
1184                         {
1185                         i=SSL_accept(con);
1186
1187                         switch (SSL_get_error(con,i))
1188                                 {
1189                         case SSL_ERROR_NONE:
1190                                 break;
1191                         case SSL_ERROR_WANT_WRITE:
1192                         case SSL_ERROR_WANT_READ:
1193                         case SSL_ERROR_WANT_X509_LOOKUP:
1194                                 continue;
1195                         case SSL_ERROR_SYSCALL:
1196                         case SSL_ERROR_SSL:
1197                         case SSL_ERROR_ZERO_RETURN:
1198                                 ret=1;
1199                                 goto err;
1200                                 /* break; */
1201                                 }
1202
1203                         SSL_renegotiate(con);
1204                         SSL_write(con,NULL,0);
1205                         }
1206
1207                 i=BIO_gets(io,buf,bufsize-1);
1208                 if (i < 0) /* error */
1209                         {
1210                         if (!BIO_should_retry(io))
1211                                 {
1212                                 if (!s_quiet)
1213                                         ERR_print_errors(bio_err);
1214                                 goto err;
1215                                 }
1216                         else
1217                                 {
1218                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1219 #ifndef MSDOS
1220                                 sleep(1);
1221 #endif
1222                                 continue;
1223                                 }
1224                         }
1225                 else if (i == 0) /* end of input */
1226                         {
1227                         ret=1;
1228                         goto end;
1229                         }
1230
1231                 /* else we have data */
1232                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1233                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1234                         {
1235                         char *p;
1236                         X509 *peer;
1237                         STACK_OF(SSL_CIPHER) *sk;
1238                         static char *space="                          ";
1239
1240                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1241                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1242                         BIO_puts(io,"<pre>\n");
1243 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1244                         BIO_puts(io,"\n");
1245                         for (i=0; i<local_argc; i++)
1246                                 {
1247                                 BIO_puts(io,local_argv[i]);
1248                                 BIO_write(io," ",1);
1249                                 }
1250                         BIO_puts(io,"\n");
1251
1252                         /* The following is evil and should not really
1253                          * be done */
1254                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1255                         sk=SSL_get_ciphers(con);
1256                         j=sk_SSL_CIPHER_num(sk);
1257                         for (i=0; i<j; i++)
1258                                 {
1259                                 c=sk_SSL_CIPHER_value(sk,i);
1260                                 BIO_printf(io,"%-11s:%-25s",
1261                                         SSL_CIPHER_get_version(c),
1262                                         SSL_CIPHER_get_name(c));
1263                                 if ((((i+1)%2) == 0) && (i+1 != j))
1264                                         BIO_puts(io,"\n");
1265                                 }
1266                         BIO_puts(io,"\n");
1267                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1268                         if (p != NULL)
1269                                 {
1270                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1271                                 j=i=0;
1272                                 while (*p)
1273                                         {
1274                                         if (*p == ':')
1275                                                 {
1276                                                 BIO_write(io,space,26-j);
1277                                                 i++;
1278                                                 j=0;
1279                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1280                                                 }
1281                                         else
1282                                                 {
1283                                                 BIO_write(io,p,1);
1284                                                 j++;
1285                                                 }
1286                                         p++;
1287                                         }
1288                                 BIO_puts(io,"\n");
1289                                 }
1290                         BIO_printf(io,((con->hit)
1291                                 ?"---\nReused, "
1292                                 :"---\nNew, "));
1293                         c=SSL_get_current_cipher(con);
1294                         BIO_printf(io,"%s, Cipher is %s\n",
1295                                 SSL_CIPHER_get_version(c),
1296                                 SSL_CIPHER_get_name(c));
1297                         SSL_SESSION_print(io,SSL_get_session(con));
1298                         BIO_printf(io,"---\n");
1299                         print_stats(io,SSL_get_SSL_CTX(con));
1300                         BIO_printf(io,"---\n");
1301                         peer=SSL_get_peer_certificate(con);
1302                         if (peer != NULL)
1303                                 {
1304                                 BIO_printf(io,"Client certificate\n");
1305                                 X509_print(io,peer);
1306                                 PEM_write_bio_X509(io,peer);
1307                                 }
1308                         else
1309                                 BIO_puts(io,"no client certificate available\n");
1310                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1311                         break;
1312                         }
1313                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1314                         {
1315                         BIO *file;
1316                         char *p,*e;
1317                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1318
1319                         /* skip the '/' */
1320                         p= &(buf[5]);
1321                         dot=0;
1322                         for (e=p; *e != '\0'; e++)
1323                                 {
1324                                 if (e[0] == ' ') break;
1325                                 if (    (e[0] == '.') &&
1326                                         (strncmp(&(e[-1]),"/../",4) == 0))
1327                                         dot=1;
1328                                 }
1329                         
1330
1331                         if (*e == '\0')
1332                                 {
1333                                 BIO_puts(io,text);
1334                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1335                                 break;
1336                                 }
1337                         *e='\0';
1338
1339                         if (dot)
1340                                 {
1341                                 BIO_puts(io,text);
1342                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1343                                 break;
1344                                 }
1345
1346                         if (*p == '/')
1347                                 {
1348                                 BIO_puts(io,text);
1349                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1350                                 break;
1351                                 }
1352
1353                         /* append if a directory lookup */
1354                         if (e[-1] == '/')
1355                                 strcat(p,"index.html");
1356
1357                         /* if a directory, do the index thang */
1358                         if (stat(p,&st_buf) < 0)
1359                                 {
1360                                 BIO_puts(io,text);
1361                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1362                                 ERR_print_errors(io);
1363                                 break;
1364                                 }
1365                         if (S_ISDIR(st_buf.st_mode))
1366                                 {
1367                                 strcat(p,"/index.html");
1368                                 }
1369
1370                         if ((file=BIO_new_file(p,"r")) == NULL)
1371                                 {
1372                                 BIO_puts(io,text);
1373                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1374                                 ERR_print_errors(io);
1375                                 break;
1376                                 }
1377
1378                         if (!s_quiet)
1379                                 BIO_printf(bio_err,"FILE:%s\n",p);
1380
1381                         i=strlen(p);
1382                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1383                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1384                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1385                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1386                         else
1387                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1388                         /* send the file */
1389                         total_bytes=0;
1390                         for (;;)
1391                                 {
1392                                 i=BIO_read(file,buf,bufsize);
1393                                 if (i <= 0) break;
1394
1395 #ifdef RENEG
1396                                 total_bytes+=i;
1397                                 fprintf(stderr,"%d\n",i);
1398                                 if (total_bytes > 3*1024)
1399                                         {
1400                                         total_bytes=0;
1401                                         fprintf(stderr,"RENEGOTIATE\n");
1402                                         SSL_renegotiate(con);
1403                                         }
1404 #endif
1405
1406                                 for (j=0; j<i; )
1407                                         {
1408 #ifdef RENEG
1409 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1410 #endif
1411                                         k=BIO_write(io,&(buf[j]),i-j);
1412                                         if (k <= 0)
1413                                                 {
1414                                                 if (!BIO_should_retry(io))
1415                                                         goto write_error;
1416                                                 else
1417                                                         {
1418                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1419                                                         }
1420                                                 }
1421                                         else
1422                                                 {
1423                                                 j+=k;
1424                                                 }
1425                                         }
1426                                 }
1427 write_error:
1428                         BIO_free(file);
1429                         break;
1430                         }
1431                 }
1432
1433         for (;;)
1434                 {
1435                 i=(int)BIO_flush(io);
1436                 if (i <= 0)
1437                         {
1438                         if (!BIO_should_retry(io))
1439                                 break;
1440                         }
1441                 else
1442                         break;
1443                 }
1444 end:
1445 #if 1
1446         /* make sure we re-use sessions */
1447         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1448 #else
1449         /* This kills performace */
1450 /*      SSL_shutdown(con); A shutdown gets sent in the
1451  *      BIO_free_all(io) procession */
1452 #endif
1453
1454 err:
1455
1456         if (ret >= 0)
1457                 BIO_printf(bio_s_out,"ACCEPT\n");
1458
1459         if (buf != NULL) Free(buf);
1460         if (io != NULL) BIO_free_all(io);
1461 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1462         return(ret);
1463         }
1464
1465 #ifndef NO_RSA
1466 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1467         {
1468         static RSA *rsa_tmp=NULL;
1469
1470         if (rsa_tmp == NULL)
1471                 {
1472                 if (!s_quiet)
1473                         {
1474                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1475                         (void)BIO_flush(bio_err);
1476                         }
1477                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1478                 if (!s_quiet)
1479                         {
1480                         BIO_printf(bio_err,"\n");
1481                         (void)BIO_flush(bio_err);
1482                         }
1483                 }
1484         return(rsa_tmp);
1485         }
1486 #endif