2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
58 /* ====================================================================
59 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
116 #include <sys/types.h>
117 #include <sys/stat.h>
118 #include <openssl/e_os2.h>
119 #ifdef OPENSSL_NO_STDIO
123 /* With IPv6, it looks like Digital has mixed up the proper order of
124 recursive header file inclusion, resulting in the compiler complaining
125 that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
126 is needed to have fileno() declared correctly... So let's define u_int */
127 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
129 typedef unsigned int u_int;
132 #include <openssl/lhash.h>
133 #include <openssl/bn.h>
136 #include <openssl/err.h>
137 #include <openssl/pem.h>
138 #include <openssl/x509.h>
139 #include <openssl/ssl.h>
140 #include <openssl/rand.h>
143 #ifdef OPENSSL_SYS_WINCE
144 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
148 #define fileno(a) (int)_fileno(a)
151 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
152 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
156 #ifndef OPENSSL_NO_RSA
157 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
159 static int sv_body(char *hostname, int s, unsigned char *context);
160 static int www_body(char *hostname, int s, unsigned char *context);
161 static void close_accept_socket(void );
162 static void sv_usage(void);
163 static int init_ssl_connection(SSL *s);
164 static void print_stats(BIO *bp,SSL_CTX *ctx);
165 static int generate_session_id(const SSL *ssl, unsigned char *id,
166 unsigned int *id_len);
167 #ifndef OPENSSL_NO_DH
168 static DH *load_dh_param(char *dhfile);
169 static DH *get_dh512(void);
172 static void s_server_init(void);
176 # if defined(_S_IFMT) && defined(_S_IFDIR)
177 # define S_ISDIR(a) (((a) & _S_IFMT) == _S_IFDIR)
179 # define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR)
183 #ifndef OPENSSL_NO_DH
184 static unsigned char dh512_p[]={
185 0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
186 0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
187 0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
188 0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
189 0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
192 static unsigned char dh512_g[]={
196 static DH *get_dh512(void)
200 if ((dh=DH_new()) == NULL) return(NULL);
201 dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
202 dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
203 if ((dh->p == NULL) || (dh->g == NULL))
209 /* static int load_CA(SSL_CTX *ctx, char *file);*/
212 #define BUFSIZZ 16*1024
213 static int bufsize=BUFSIZZ;
214 static int accept_socket= -1;
216 #define TEST_CERT "server.pem"
218 #define PROG s_server_main
220 extern int verify_depth;
222 static char *cipher=NULL;
223 static int s_server_verify=SSL_VERIFY_NONE;
224 static int s_server_session_id_context = 1; /* anything will do */
225 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
226 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
230 static int s_nbio_test=0;
232 static SSL_CTX *ctx=NULL;
235 static BIO *bio_s_out=NULL;
236 static int s_debug=0;
238 static int s_quiet=0;
241 #ifndef OPENSSL_NO_ENGINE
242 static char *engine_id=NULL;
244 static const char *session_id_prefix=NULL;
247 static void s_server_init(void)
251 s_server_verify=SSL_VERIFY_NONE;
254 s_cert_file=TEST_CERT;
268 #ifndef OPENSSL_NO_ENGINE
274 static void sv_usage(void)
276 BIO_printf(bio_err,"usage: s_server [args ...]\n");
277 BIO_printf(bio_err,"\n");
278 BIO_printf(bio_err," -accept arg - port to accept on (default is %d)\n",PORT);
279 BIO_printf(bio_err," -context arg - set session ID context\n");
280 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n");
281 BIO_printf(bio_err," -Verify arg - turn on peer certificate verification, must have a cert.\n");
282 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n");
283 BIO_printf(bio_err," (default is %s)\n",TEST_CERT);
284 BIO_printf(bio_err," -key arg - Private Key file to use, PEM format assumed, in cert file if\n");
285 BIO_printf(bio_err," not specified (default is %s)\n",TEST_CERT);
286 BIO_printf(bio_err," -dcert arg - second certificate file to use (usually for DSA)\n");
287 BIO_printf(bio_err," -dkey arg - second private key file to use (usually for DSA)\n");
288 BIO_printf(bio_err," -dhparam arg - DH parameter file to use, in cert file if not specified\n");
289 BIO_printf(bio_err," or a default set of parameters is used\n");
291 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n");
293 BIO_printf(bio_err," -nbio_test - test with the non-blocking test bio\n");
294 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n");
295 BIO_printf(bio_err," -debug - Print more output\n");
296 BIO_printf(bio_err," -msg - Show protocol messages\n");
297 BIO_printf(bio_err," -state - Print the SSL states\n");
298 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n");
299 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n");
300 BIO_printf(bio_err," -nocert - Don't use any certificates (Anon-DH)\n");
301 BIO_printf(bio_err," -cipher arg - play with 'openssl ciphers' to see what goes here\n");
302 BIO_printf(bio_err," -serverpref - Use server's cipher preferences\n");
303 BIO_printf(bio_err," -quiet - No server output\n");
304 BIO_printf(bio_err," -no_tmp_rsa - Do not generate a tmp RSA key\n");
305 BIO_printf(bio_err," -ssl2 - Just talk SSLv2\n");
306 BIO_printf(bio_err," -ssl3 - Just talk SSLv3\n");
307 BIO_printf(bio_err," -tls1 - Just talk TLSv1\n");
308 BIO_printf(bio_err," -no_ssl2 - Just disable SSLv2\n");
309 BIO_printf(bio_err," -no_ssl3 - Just disable SSLv3\n");
310 BIO_printf(bio_err," -no_tls1 - Just disable TLSv1\n");
311 #ifndef OPENSSL_NO_DH
312 BIO_printf(bio_err," -no_dhe - Disable ephemeral DH\n");
314 BIO_printf(bio_err," -bugs - Turn on SSL bug compatibility\n");
315 BIO_printf(bio_err," -www - Respond to a 'GET /' with a status page\n");
316 BIO_printf(bio_err," -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
317 BIO_printf(bio_err," -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
318 BIO_printf(bio_err," with the assumption it contains a complete HTTP response.\n");
319 #ifndef OPENSSL_NO_ENGINE
320 BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n");
322 BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
323 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
326 static int local_argc=0;
327 static char **local_argv;
329 #ifdef CHARSET_EBCDIC
330 static int ebcdic_new(BIO *bi);
331 static int ebcdic_free(BIO *a);
332 static int ebcdic_read(BIO *b, char *out, int outl);
333 static int ebcdic_write(BIO *b, const char *in, int inl);
334 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
335 static int ebcdic_gets(BIO *bp, char *buf, int size);
336 static int ebcdic_puts(BIO *bp, const char *str);
338 #define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
339 static BIO_METHOD methods_ebcdic=
341 BIO_TYPE_EBCDIC_FILTER,
342 "EBCDIC/ASCII filter",
358 BIO_METHOD *BIO_f_ebcdic_filter()
360 return(&methods_ebcdic);
363 static int ebcdic_new(BIO *bi)
365 EBCDIC_OUTBUFF *wbuf;
367 wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
368 wbuf->alloced = 1024;
369 wbuf->buff[0] = '\0';
371 bi->ptr=(char *)wbuf;
377 static int ebcdic_free(BIO *a)
379 if (a == NULL) return(0);
381 OPENSSL_free(a->ptr);
388 static int ebcdic_read(BIO *b, char *out, int outl)
392 if (out == NULL || outl == 0) return(0);
393 if (b->next_bio == NULL) return(0);
395 ret=BIO_read(b->next_bio,out,outl);
397 ascii2ebcdic(out,out,ret);
401 static int ebcdic_write(BIO *b, const char *in, int inl)
403 EBCDIC_OUTBUFF *wbuf;
408 if ((in == NULL) || (inl <= 0)) return(0);
409 if (b->next_bio == NULL) return(0);
411 wbuf=(EBCDIC_OUTBUFF *)b->ptr;
413 if (inl > (num = wbuf->alloced))
415 num = num + num; /* double the size */
419 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
422 wbuf->buff[0] = '\0';
427 ebcdic2ascii(wbuf->buff, in, inl);
429 ret=BIO_write(b->next_bio, wbuf->buff, inl);
434 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
438 if (b->next_bio == NULL) return(0);
445 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
451 static int ebcdic_gets(BIO *bp, char *buf, int size)
454 if (bp->next_bio == NULL) return(0);
455 /* return(BIO_gets(bp->next_bio,buf,size));*/
456 for (i=0; i<size-1; ++i)
458 ret = ebcdic_read(bp,&buf[i],1);
461 else if (buf[i] == '\n')
469 return (ret < 0 && i == 0) ? ret : i;
472 static int ebcdic_puts(BIO *bp, const char *str)
474 if (bp->next_bio == NULL) return(0);
475 return ebcdic_write(bp, str, strlen(str));
479 int MAIN(int, char **);
481 int MAIN(int argc, char *argv[])
483 X509_STORE *store = NULL;
486 char *CApath=NULL,*CAfile=NULL;
487 char *context = NULL;
492 int no_tmp_rsa=0,no_dhe=0,nocert=0;
494 SSL_METHOD *meth=NULL;
495 #ifndef OPENSSL_NO_ENGINE
500 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
501 meth=SSLv23_server_method();
502 #elif !defined(OPENSSL_NO_SSL3)
503 meth=SSLv3_server_method();
504 #elif !defined(OPENSSL_NO_SSL2)
505 meth=SSLv2_server_method();
517 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
519 if (!load_config(bio_err, NULL))
533 if ((strcmp(*argv,"-port") == 0) ||
534 (strcmp(*argv,"-accept") == 0))
536 if (--argc < 1) goto bad;
537 if (!extract_port(*(++argv),&port))
540 else if (strcmp(*argv,"-verify") == 0)
542 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
543 if (--argc < 1) goto bad;
544 verify_depth=atoi(*(++argv));
545 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
547 else if (strcmp(*argv,"-Verify") == 0)
549 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
550 SSL_VERIFY_CLIENT_ONCE;
551 if (--argc < 1) goto bad;
552 verify_depth=atoi(*(++argv));
553 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
555 else if (strcmp(*argv,"-context") == 0)
557 if (--argc < 1) goto bad;
560 else if (strcmp(*argv,"-cert") == 0)
562 if (--argc < 1) goto bad;
563 s_cert_file= *(++argv);
565 else if (strcmp(*argv,"-key") == 0)
567 if (--argc < 1) goto bad;
568 s_key_file= *(++argv);
570 else if (strcmp(*argv,"-dhparam") == 0)
572 if (--argc < 1) goto bad;
575 else if (strcmp(*argv,"-dcert") == 0)
577 if (--argc < 1) goto bad;
578 s_dcert_file= *(++argv);
580 else if (strcmp(*argv,"-dkey") == 0)
582 if (--argc < 1) goto bad;
583 s_dkey_file= *(++argv);
585 else if (strcmp(*argv,"-nocert") == 0)
589 else if (strcmp(*argv,"-CApath") == 0)
591 if (--argc < 1) goto bad;
594 else if (strcmp(*argv,"-crl_check") == 0)
596 vflags |= X509_V_FLAG_CRL_CHECK;
598 else if (strcmp(*argv,"-crl_check") == 0)
600 vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
602 else if (strcmp(*argv,"-serverpref") == 0)
603 { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
604 else if (strcmp(*argv,"-cipher") == 0)
606 if (--argc < 1) goto bad;
609 else if (strcmp(*argv,"-CAfile") == 0)
611 if (--argc < 1) goto bad;
615 else if (strcmp(*argv,"-nbio") == 0)
618 else if (strcmp(*argv,"-nbio_test") == 0)
625 else if (strcmp(*argv,"-debug") == 0)
627 else if (strcmp(*argv,"-msg") == 0)
629 else if (strcmp(*argv,"-hack") == 0)
631 else if (strcmp(*argv,"-state") == 0)
633 else if (strcmp(*argv,"-crlf") == 0)
635 else if (strcmp(*argv,"-quiet") == 0)
637 else if (strcmp(*argv,"-bugs") == 0)
639 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
641 else if (strcmp(*argv,"-no_dhe") == 0)
643 else if (strcmp(*argv,"-www") == 0)
645 else if (strcmp(*argv,"-WWW") == 0)
647 else if (strcmp(*argv,"-HTTP") == 0)
649 else if (strcmp(*argv,"-no_ssl2") == 0)
650 { off|=SSL_OP_NO_SSLv2; }
651 else if (strcmp(*argv,"-no_ssl3") == 0)
652 { off|=SSL_OP_NO_SSLv3; }
653 else if (strcmp(*argv,"-no_tls1") == 0)
654 { off|=SSL_OP_NO_TLSv1; }
655 #ifndef OPENSSL_NO_SSL2
656 else if (strcmp(*argv,"-ssl2") == 0)
657 { meth=SSLv2_server_method(); }
659 #ifndef OPENSSL_NO_SSL3
660 else if (strcmp(*argv,"-ssl3") == 0)
661 { meth=SSLv3_server_method(); }
663 #ifndef OPENSSL_NO_TLS1
664 else if (strcmp(*argv,"-tls1") == 0)
665 { meth=TLSv1_server_method(); }
667 else if (strcmp(*argv, "-id_prefix") == 0)
669 if (--argc < 1) goto bad;
670 session_id_prefix = *(++argv);
672 #ifndef OPENSSL_NO_ENGINE
673 else if (strcmp(*argv,"-engine") == 0)
675 if (--argc < 1) goto bad;
676 engine_id= *(++argv);
679 else if (strcmp(*argv,"-rand") == 0)
681 if (--argc < 1) goto bad;
686 BIO_printf(bio_err,"unknown option %s\n",*argv);
700 SSL_load_error_strings();
701 OpenSSL_add_ssl_algorithms();
703 #ifndef OPENSSL_NO_ENGINE
704 e = setup_engine(bio_err, engine_id, 1);
707 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
710 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
713 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
714 app_RAND_load_files(inrand));
716 if (bio_s_out == NULL)
718 if (s_quiet && !s_debug && !s_msg)
720 bio_s_out=BIO_new(BIO_s_null());
724 if (bio_s_out == NULL)
725 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
729 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA)
739 ctx=SSL_CTX_new(meth);
742 ERR_print_errors(bio_err);
745 if (session_id_prefix)
747 if(strlen(session_id_prefix) >= 32)
749 "warning: id_prefix is too long, only one new session will be possible\n");
750 else if(strlen(session_id_prefix) >= 16)
752 "warning: id_prefix is too long if you use SSLv2\n");
753 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
755 BIO_printf(bio_err,"error setting 'id_prefix'\n");
756 ERR_print_errors(bio_err);
759 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
761 SSL_CTX_set_quiet_shutdown(ctx,1);
762 if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
763 if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
764 SSL_CTX_set_options(ctx,off);
766 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
768 SSL_CTX_sess_set_cache_size(ctx,128);
771 if (cipher == NULL) cipher=getenv("SSL_CIPHER");
775 if (s_cert_file == NULL)
777 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
782 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
783 (!SSL_CTX_set_default_verify_paths(ctx)))
785 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
786 ERR_print_errors(bio_err);
789 store = SSL_CTX_get_cert_store(ctx);
790 X509_STORE_set_flags(store, vflags);
792 #ifndef OPENSSL_NO_DH
798 dh = load_dh_param(dhfile);
799 else if (s_cert_file)
800 dh = load_dh_param(s_cert_file);
804 BIO_printf(bio_s_out,"Setting temp DH parameters\n");
808 BIO_printf(bio_s_out,"Using default temp DH parameters\n");
811 (void)BIO_flush(bio_s_out);
813 SSL_CTX_set_tmp_dh(ctx,dh);
818 if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
820 if (s_dcert_file != NULL)
822 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
826 #ifndef OPENSSL_NO_RSA
829 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
831 if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
835 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
836 BIO_flush(bio_s_out);
838 rsa=RSA_generate_key(512,RSA_F4,NULL);
840 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
842 ERR_print_errors(bio_err);
846 BIO_printf(bio_s_out,"\n");
852 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
853 BIO_printf(bio_err,"error setting cipher list\n");
854 ERR_print_errors(bio_err);
857 SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
858 SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
859 sizeof s_server_session_id_context);
862 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
864 BIO_printf(bio_s_out,"ACCEPT\n");
866 do_server(port,&accept_socket,www_body, context);
868 do_server(port,&accept_socket,sv_body, context);
869 print_stats(bio_s_out,ctx);
872 if (ctx != NULL) SSL_CTX_free(ctx);
873 if (bio_s_out != NULL)
882 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
884 BIO_printf(bio,"%4ld items in the session cache\n",
885 SSL_CTX_sess_number(ssl_ctx));
886 BIO_printf(bio,"%4d client connects (SSL_connect())\n",
887 SSL_CTX_sess_connect(ssl_ctx));
888 BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
889 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
890 BIO_printf(bio,"%4d client connects that finished\n",
891 SSL_CTX_sess_connect_good(ssl_ctx));
892 BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
893 SSL_CTX_sess_accept(ssl_ctx));
894 BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
895 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
896 BIO_printf(bio,"%4d server accepts that finished\n",
897 SSL_CTX_sess_accept_good(ssl_ctx));
898 BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
899 BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
900 BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
901 BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
902 BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
903 SSL_CTX_sess_cache_full(ssl_ctx),
904 SSL_CTX_sess_get_cache_size(ssl_ctx));
907 static int sv_body(char *hostname, int s, unsigned char *context)
916 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
920 if ((buf=OPENSSL_malloc(bufsize)) == NULL)
922 BIO_printf(bio_err,"out of memory\n");
931 BIO_printf(bio_err,"turning on non blocking io\n");
932 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
933 ERR_print_errors(bio_err);
939 #ifndef OPENSSL_NO_KRB5
940 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
942 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
944 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
947 #endif /* OPENSSL_NO_KRB5 */
949 SSL_set_session_id_context(con, context,
950 strlen((char *)context));
954 sbio=BIO_new_socket(s,BIO_NOCLOSE);
959 test=BIO_new(BIO_f_nbio_test());
960 sbio=BIO_push(test,sbio);
962 SSL_set_bio(con,sbio,sbio);
963 SSL_set_accept_state(con);
964 /* SSL_set_fd(con,s); */
969 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
970 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
974 SSL_set_msg_callback(con, msg_cb);
975 SSL_set_msg_callback_arg(con, bio_s_out);
981 int read_from_terminal;
982 int read_from_sslcon;
984 read_from_terminal = 0;
985 read_from_sslcon = SSL_pending(con);
987 if (!read_from_sslcon)
990 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
991 FD_SET(fileno(stdin),&readfds);
994 /* Note: under VMS with SOCKETSHR the second parameter is
995 * currently of type (int *) whereas under other systems
996 * it is (void *) if you don't have a cast it will choke
997 * the compiler: if you do have a cast then you can either
998 * go for (int *) or (void *).
1000 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1001 /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1002 * on sockets. As a workaround we timeout the select every
1003 * second and check for any keypress. In a proper Windows
1004 * application we wouldn't do this because it is inefficient.
1008 i=select(width,(void *)&readfds,NULL,NULL,&tv);
1009 if((i < 0) || (!i && !_kbhit() ) )continue;
1011 read_from_terminal = 1;
1013 i=select(width,(void *)&readfds,NULL,NULL,NULL);
1014 if (i <= 0) continue;
1015 if (FD_ISSET(fileno(stdin),&readfds))
1016 read_from_terminal = 1;
1018 if (FD_ISSET(s,&readfds))
1019 read_from_sslcon = 1;
1021 if (read_from_terminal)
1027 i=read(fileno(stdin), buf, bufsize/2);
1029 /* both loops are skipped when i <= 0 */
1030 for (j = 0; j < i; j++)
1033 for (j = i-1; j >= 0; j--)
1035 buf[j+lf_num] = buf[j];
1040 buf[j+lf_num] = '\r';
1043 assert(lf_num == 0);
1046 i=read(fileno(stdin),buf,bufsize);
1049 if ((i <= 0) || (buf[0] == 'Q'))
1051 BIO_printf(bio_s_out,"DONE\n");
1053 close_accept_socket();
1057 if ((i <= 0) || (buf[0] == 'q'))
1059 BIO_printf(bio_s_out,"DONE\n");
1061 /* close_accept_socket();
1065 if ((buf[0] == 'r') &&
1066 ((buf[1] == '\n') || (buf[1] == '\r')))
1068 SSL_renegotiate(con);
1069 i=SSL_do_handshake(con);
1070 printf("SSL_do_handshake -> %d\n",i);
1073 /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1075 if ((buf[0] == 'R') &&
1076 ((buf[1] == '\n') || (buf[1] == '\r')))
1079 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1080 SSL_renegotiate(con);
1081 i=SSL_do_handshake(con);
1082 printf("SSL_do_handshake -> %d\n",i);
1085 /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1089 static char *str="Lets print some clear text\n";
1090 BIO_write(SSL_get_wbio(con),str,strlen(str));
1094 print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1097 #ifdef CHARSET_EBCDIC
1098 ebcdic2ascii(buf,buf,i);
1103 /* should do a select for the write */
1105 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1107 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1108 switch (SSL_get_error(con,k))
1110 case SSL_ERROR_NONE:
1112 case SSL_ERROR_WANT_WRITE:
1113 case SSL_ERROR_WANT_READ:
1114 case SSL_ERROR_WANT_X509_LOOKUP:
1115 BIO_printf(bio_s_out,"Write BLOCK\n");
1117 case SSL_ERROR_SYSCALL:
1119 BIO_printf(bio_s_out,"ERROR\n");
1120 ERR_print_errors(bio_err);
1124 case SSL_ERROR_ZERO_RETURN:
1125 BIO_printf(bio_s_out,"DONE\n");
1134 if (read_from_sslcon)
1136 if (!SSL_is_init_finished(con))
1138 i=init_ssl_connection(con);
1154 i=SSL_read(con,(char *)buf,bufsize);
1155 switch (SSL_get_error(con,i))
1157 case SSL_ERROR_NONE:
1158 #ifdef CHARSET_EBCDIC
1159 ascii2ebcdic(buf,buf,i);
1161 write(fileno(stdout),buf,
1163 if (SSL_pending(con)) goto again;
1165 case SSL_ERROR_WANT_WRITE:
1166 case SSL_ERROR_WANT_READ:
1167 case SSL_ERROR_WANT_X509_LOOKUP:
1168 BIO_printf(bio_s_out,"Read BLOCK\n");
1170 case SSL_ERROR_SYSCALL:
1172 BIO_printf(bio_s_out,"ERROR\n");
1173 ERR_print_errors(bio_err);
1176 case SSL_ERROR_ZERO_RETURN:
1177 BIO_printf(bio_s_out,"DONE\n");
1185 BIO_printf(bio_s_out,"shutting down SSL\n");
1187 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1191 if (con != NULL) SSL_free(con);
1192 BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1195 OPENSSL_cleanse(buf,bufsize);
1199 BIO_printf(bio_s_out,"ACCEPT\n");
1203 static void close_accept_socket(void)
1205 BIO_printf(bio_err,"shutdown accept socket\n");
1206 if (accept_socket >= 0)
1208 SHUTDOWN2(accept_socket);
1212 static int init_ssl_connection(SSL *con)
1218 MS_STATIC char buf[BUFSIZ];
1220 if ((i=SSL_accept(con)) <= 0)
1222 if (BIO_sock_should_retry(i))
1224 BIO_printf(bio_s_out,"DELAY\n");
1228 BIO_printf(bio_err,"ERROR\n");
1229 verify_error=SSL_get_verify_result(con);
1230 if (verify_error != X509_V_OK)
1232 BIO_printf(bio_err,"verify error:%s\n",
1233 X509_verify_cert_error_string(verify_error));
1236 ERR_print_errors(bio_err);
1240 PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1242 peer=SSL_get_peer_certificate(con);
1245 BIO_printf(bio_s_out,"Client certificate\n");
1246 PEM_write_bio_X509(bio_s_out,peer);
1247 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1248 BIO_printf(bio_s_out,"subject=%s\n",buf);
1249 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1250 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1254 if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1255 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1256 str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1257 BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1258 if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1259 if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1260 TLS1_FLAGS_TLS_PADDING_BUG)
1261 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1262 #ifndef OPENSSL_NO_KRB5
1263 if (con->kssl_ctx->client_princ != NULL)
1265 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
1266 con->kssl_ctx->client_princ);
1268 #endif /* OPENSSL_NO_KRB5 */
1272 #ifndef OPENSSL_NO_DH
1273 static DH *load_dh_param(char *dhfile)
1278 if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1280 ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1282 if (bio != NULL) BIO_free(bio);
1288 static int load_CA(SSL_CTX *ctx, char *file)
1293 if ((in=fopen(file,"r")) == NULL)
1298 if (PEM_read_X509(in,&x,NULL) == NULL)
1300 SSL_CTX_add_client_CA(ctx,x);
1302 if (x != NULL) X509_free(x);
1308 static int www_body(char *hostname, int s, unsigned char *context)
1312 int i,j,k,blank,dot;
1316 BIO *io,*ssl_bio,*sbio;
1319 buf=OPENSSL_malloc(bufsize);
1320 if (buf == NULL) return(0);
1321 io=BIO_new(BIO_f_buffer());
1322 ssl_bio=BIO_new(BIO_f_ssl());
1323 if ((io == NULL) || (ssl_bio == NULL)) goto err;
1331 BIO_printf(bio_err,"turning on non blocking io\n");
1332 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1333 ERR_print_errors(bio_err);
1337 /* lets make the output buffer a reasonable size */
1338 if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1340 if ((con=SSL_new(ctx)) == NULL) goto err;
1341 #ifndef OPENSSL_NO_KRB5
1342 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1344 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1345 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1347 #endif /* OPENSSL_NO_KRB5 */
1348 if(context) SSL_set_session_id_context(con, context,
1349 strlen((char *)context));
1351 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1356 test=BIO_new(BIO_f_nbio_test());
1357 sbio=BIO_push(test,sbio);
1359 SSL_set_bio(con,sbio,sbio);
1360 SSL_set_accept_state(con);
1362 /* SSL_set_fd(con,s); */
1363 BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1364 BIO_push(io,ssl_bio);
1365 #ifdef CHARSET_EBCDIC
1366 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1372 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1373 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1377 SSL_set_msg_callback(con, msg_cb);
1378 SSL_set_msg_callback_arg(con, bio_s_out);
1388 switch (SSL_get_error(con,i))
1390 case SSL_ERROR_NONE:
1392 case SSL_ERROR_WANT_WRITE:
1393 case SSL_ERROR_WANT_READ:
1394 case SSL_ERROR_WANT_X509_LOOKUP:
1396 case SSL_ERROR_SYSCALL:
1398 case SSL_ERROR_ZERO_RETURN:
1404 SSL_renegotiate(con);
1405 SSL_write(con,NULL,0);
1408 i=BIO_gets(io,buf,bufsize-1);
1409 if (i < 0) /* error */
1411 if (!BIO_should_retry(io))
1414 ERR_print_errors(bio_err);
1419 BIO_printf(bio_s_out,"read R BLOCK\n");
1420 #if !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1426 else if (i == 0) /* end of input */
1432 /* else we have data */
1433 if ( ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1434 ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1438 STACK_OF(SSL_CIPHER) *sk;
1439 static char *space=" ";
1441 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1442 BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1443 BIO_puts(io,"<pre>\n");
1444 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1446 for (i=0; i<local_argc; i++)
1448 BIO_puts(io,local_argv[i]);
1449 BIO_write(io," ",1);
1453 /* The following is evil and should not really
1455 BIO_printf(io,"Ciphers supported in s_server binary\n");
1456 sk=SSL_get_ciphers(con);
1457 j=sk_SSL_CIPHER_num(sk);
1460 c=sk_SSL_CIPHER_value(sk,i);
1461 BIO_printf(io,"%-11s:%-25s",
1462 SSL_CIPHER_get_version(c),
1463 SSL_CIPHER_get_name(c));
1464 if ((((i+1)%2) == 0) && (i+1 != j))
1468 p=SSL_get_shared_ciphers(con,buf,bufsize);
1471 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1477 BIO_write(io,space,26-j);
1480 BIO_write(io,((i%3)?" ":"\n"),1);
1491 BIO_printf(io,((con->hit)
1494 c=SSL_get_current_cipher(con);
1495 BIO_printf(io,"%s, Cipher is %s\n",
1496 SSL_CIPHER_get_version(c),
1497 SSL_CIPHER_get_name(c));
1498 SSL_SESSION_print(io,SSL_get_session(con));
1499 BIO_printf(io,"---\n");
1500 print_stats(io,SSL_get_SSL_CTX(con));
1501 BIO_printf(io,"---\n");
1502 peer=SSL_get_peer_certificate(con);
1505 BIO_printf(io,"Client certificate\n");
1506 X509_print(io,peer);
1507 PEM_write_bio_X509(io,peer);
1510 BIO_puts(io,"no client certificate available\n");
1511 BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1514 else if ((www == 2 || www == 3)
1515 && (strncmp("GET /",buf,5) == 0))
1519 static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1525 for (e=p; *e != '\0'; e++)
1533 dot = (e[0] == '.') ? 2 : 0;
1536 dot = (e[0] == '.') ? 3 : 0;
1539 dot = (e[0] == '/') ? -1 : 0;
1543 dot = (e[0] == '/') ? 1 : 0;
1545 dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
1550 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1558 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1565 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1570 /* append if a directory lookup */
1572 strcat(p,"index.html");
1575 /* if a directory, do the index thang */
1576 if (stat(p,&st_buf) < 0)
1579 BIO_printf(io,"Error accessing '%s'\r\n",p);
1580 ERR_print_errors(io);
1583 if (S_ISDIR(st_buf.st_mode))
1585 #if 0 /* must check buffer size */
1586 strcat(p,"/index.html");
1589 BIO_printf(io,"'%s' is a directory\r\n",p);
1594 if ((file=BIO_new_file(p,"r")) == NULL)
1597 BIO_printf(io,"Error opening '%s'\r\n",p);
1598 ERR_print_errors(io);
1603 BIO_printf(bio_err,"FILE:%s\n",p);
1608 if ( ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1609 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1610 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1611 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1613 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1619 i=BIO_read(file,buf,bufsize);
1624 fprintf(stderr,"%d\n",i);
1625 if (total_bytes > 3*1024)
1628 fprintf(stderr,"RENEGOTIATE\n");
1629 SSL_renegotiate(con);
1636 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1638 k=BIO_write(io,&(buf[j]),i-j);
1641 if (!BIO_should_retry(io))
1645 BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1662 i=(int)BIO_flush(io);
1665 if (!BIO_should_retry(io))
1673 /* make sure we re-use sessions */
1674 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1676 /* This kills performance */
1677 /* SSL_shutdown(con); A shutdown gets sent in the
1678 * BIO_free_all(io) procession */
1684 BIO_printf(bio_s_out,"ACCEPT\n");
1686 if (buf != NULL) OPENSSL_free(buf);
1687 if (io != NULL) BIO_free_all(io);
1688 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1692 #ifndef OPENSSL_NO_RSA
1693 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1695 static RSA *rsa_tmp=NULL;
1697 if (rsa_tmp == NULL)
1701 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1702 (void)BIO_flush(bio_err);
1704 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1707 BIO_printf(bio_err,"\n");
1708 (void)BIO_flush(bio_err);
1715 #define MAX_SESSION_ID_ATTEMPTS 10
1716 static int generate_session_id(const SSL *ssl, unsigned char *id,
1717 unsigned int *id_len)
1719 unsigned int count = 0;
1721 RAND_pseudo_bytes(id, *id_len);
1722 /* Prefix the session_id with the required prefix. NB: If our
1723 * prefix is too long, clip it - but there will be worse effects
1724 * anyway, eg. the server could only possibly create 1 session
1725 * ID (ie. the prefix!) so all future session negotiations will
1726 * fail due to conflicts. */
1727 memcpy(id, session_id_prefix,
1728 (strlen(session_id_prefix) < *id_len) ?
1729 strlen(session_id_prefix) : *id_len);
1731 while(SSL_has_matching_session_id(ssl, id, *id_len) &&
1732 (++count < MAX_SESSION_ID_ATTEMPTS));
1733 if(count >= MAX_SESSION_ID_ATTEMPTS)