1 /* apps/s_server.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 /* ==================================================================== 59 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * openssl-core@openssl.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay@cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh@cryptsoft.com). 109 * 110 */ 111 /* ==================================================================== 112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 113 * ECC cipher suite support in OpenSSL originally developed by 114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 115 */ 116 117 /* Until the key-gen callbacks are modified to use newer prototypes, we allow 118 * deprecated functions for openssl-internal code */ 119 #ifdef OPENSSL_NO_DEPRECATED 120 #undef OPENSSL_NO_DEPRECATED 121 #endif 122 123 #include <assert.h> 124 #include <stdio.h> 125 #include <stdlib.h> 126 #include <string.h> 127 128 #include <sys/stat.h> 129 #include <openssl/e_os2.h> 130 #ifdef OPENSSL_NO_STDIO 131 #define APPS_WIN16 132 #endif 133 134 #if !defined(OPENSSL_SYS_NETWARE) /* conflicts with winsock2 stuff on netware */ 135 #include <sys/types.h> 136 #endif 137 138 /* With IPv6, it looks like Digital has mixed up the proper order of 139 recursive header file inclusion, resulting in the compiler complaining 140 that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which 141 is needed to have fileno() declared correctly... So let's define u_int */ 142 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) 143 #define __U_INT 144 typedef unsigned int u_int; 145 #endif 146 147 #include <openssl/lhash.h> 148 #include <openssl/bn.h> 149 #define USE_SOCKETS 150 #include "apps.h" 151 #include <openssl/err.h> 152 #include <openssl/pem.h> 153 #include <openssl/x509.h> 154 #include <openssl/ssl.h> 155 #include <openssl/rand.h> 156 #ifndef OPENSSL_NO_DH 157 #include <openssl/dh.h> 158 #endif 159 #ifndef OPENSSL_NO_RSA 160 #include <openssl/rsa.h> 161 #endif 162 #include "s_apps.h" 163 #include "timeouts.h" 164 165 #ifdef OPENSSL_SYS_WINCE 166 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */ 167 #ifdef fileno 168 #undef fileno 169 #endif 170 #define fileno(a) (int)_fileno(a) 171 #endif 172 173 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000) 174 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ 175 #undef FIONBIO 176 #endif 177 178 #ifndef OPENSSL_NO_RSA 179 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength); 180 #endif 181 static int sv_body(char *hostname, int s, unsigned char *context); 182 static int www_body(char *hostname, int s, unsigned char *context); 183 static void close_accept_socket(void ); 184 static void sv_usage(void); 185 static int init_ssl_connection(SSL *s); 186 static void print_stats(BIO *bp,SSL_CTX *ctx); 187 static int generate_session_id(const SSL *ssl, unsigned char *id, 188 unsigned int *id_len); 189 #ifndef OPENSSL_NO_DH 190 static DH *load_dh_param(const char *dhfile); 191 static DH *get_dh512(void); 192 #endif 193 194 #ifdef MONOLITH 195 static void s_server_init(void); 196 #endif 197 198 #ifndef S_ISDIR 199 # if defined(_S_IFMT) && defined(_S_IFDIR) 200 # define S_ISDIR(a) (((a) & _S_IFMT) == _S_IFDIR) 201 # else 202 # define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR) 203 # endif 204 #endif 205 206 #ifndef OPENSSL_NO_DH 207 static unsigned char dh512_p[]={ 208 0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75, 209 0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F, 210 0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3, 211 0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12, 212 0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C, 213 0x47,0x74,0xE8,0x33, 214 }; 215 static unsigned char dh512_g[]={ 216 0x02, 217 }; 218 219 static DH *get_dh512(void) 220 { 221 DH *dh=NULL; 222 223 if ((dh=DH_new()) == NULL) return(NULL); 224 dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL); 225 dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL); 226 if ((dh->p == NULL) || (dh->g == NULL)) 227 return(NULL); 228 return(dh); 229 } 230 #endif 231 232 233 /* static int load_CA(SSL_CTX *ctx, char *file);*/ 234 235 #undef BUFSIZZ 236 #define BUFSIZZ 16*1024 237 static int bufsize=BUFSIZZ; 238 static int accept_socket= -1; 239 240 #define TEST_CERT "server.pem" 241 #undef PROG 242 #define PROG s_server_main 243 244 extern int verify_depth; 245 246 static char *cipher=NULL; 247 static int s_server_verify=SSL_VERIFY_NONE; 248 static int s_server_session_id_context = 1; /* anything will do */ 249 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL; 250 static char *s_dcert_file=NULL,*s_dkey_file=NULL; 251 #ifdef FIONBIO 252 static int s_nbio=0; 253 #endif 254 static int s_nbio_test=0; 255 int s_crlf=0; 256 static SSL_CTX *ctx=NULL; 257 static int www=0; 258 259 static BIO *bio_s_out=NULL; 260 static int s_debug=0; 261 static int s_msg=0; 262 static int s_quiet=0; 263 264 static int hack=0; 265 #ifndef OPENSSL_NO_ENGINE 266 static char *engine_id=NULL; 267 #endif 268 static const char *session_id_prefix=NULL; 269 270 static int enable_timeouts = 0; 271 #ifdef mtu 272 #undef mtu 273 #endif 274 static long mtu; 275 static int cert_chain = 0; 276 277 278 #ifdef MONOLITH 279 static void s_server_init(void) 280 { 281 accept_socket=-1; 282 cipher=NULL; 283 s_server_verify=SSL_VERIFY_NONE; 284 s_dcert_file=NULL; 285 s_dkey_file=NULL; 286 s_cert_file=TEST_CERT; 287 s_key_file=NULL; 288 #ifdef FIONBIO 289 s_nbio=0; 290 #endif 291 s_nbio_test=0; 292 ctx=NULL; 293 www=0; 294 295 bio_s_out=NULL; 296 s_debug=0; 297 s_msg=0; 298 s_quiet=0; 299 hack=0; 300 #ifndef OPENSSL_NO_ENGINE 301 engine_id=NULL; 302 #endif 303 } 304 #endif 305 306 static void sv_usage(void) 307 { 308 BIO_printf(bio_err,"usage: s_server [args ...]\n"); 309 BIO_printf(bio_err,"\n"); 310 BIO_printf(bio_err," -accept arg - port to accept on (default is %d)\n",PORT); 311 BIO_printf(bio_err," -context arg - set session ID context\n"); 312 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n"); 313 BIO_printf(bio_err," -Verify arg - turn on peer certificate verification, must have a cert.\n"); 314 BIO_printf(bio_err," -cert arg - certificate file to use\n"); 315 BIO_printf(bio_err," (default is %s)\n",TEST_CERT); 316 BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n"); 317 BIO_printf(bio_err," -key arg - Private Key file to use, in cert file if\n"); 318 BIO_printf(bio_err," not specified (default is %s)\n",TEST_CERT); 319 BIO_printf(bio_err," -keyform arg - key format (PEM, DER or ENGINE) PEM default\n"); 320 BIO_printf(bio_err," -pass arg - private key file pass phrase source\n"); 321 BIO_printf(bio_err," -dcert arg - second certificate file to use (usually for DSA)\n"); 322 BIO_printf(bio_err," -dcertform x - second certificate format (PEM or DER) PEM default\n"); 323 BIO_printf(bio_err," -dkey arg - second private key file to use (usually for DSA)\n"); 324 BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n"); 325 BIO_printf(bio_err," -dpass arg - second private key file pass phrase source\n"); 326 BIO_printf(bio_err," -dhparam arg - DH parameter file to use, in cert file if not specified\n"); 327 BIO_printf(bio_err," or a default set of parameters is used\n"); 328 #ifndef OPENSSL_NO_ECDH 329 BIO_printf(bio_err," -named_curve arg - Elliptic curve name to use for ephemeral ECDH keys.\n" \ 330 " Use \"openssl ecparam -list_curves\" for all names\n" \ 331 " (default is sect163r2).\n"); 332 #endif 333 #ifdef FIONBIO 334 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n"); 335 #endif 336 BIO_printf(bio_err," -nbio_test - test with the non-blocking test bio\n"); 337 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n"); 338 BIO_printf(bio_err," -debug - Print more output\n"); 339 BIO_printf(bio_err," -msg - Show protocol messages\n"); 340 BIO_printf(bio_err," -state - Print the SSL states\n"); 341 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n"); 342 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n"); 343 BIO_printf(bio_err," -nocert - Don't use any certificates (Anon-DH)\n"); 344 BIO_printf(bio_err," -cipher arg - play with 'openssl ciphers' to see what goes here\n"); 345 BIO_printf(bio_err," -serverpref - Use server's cipher preferences\n"); 346 BIO_printf(bio_err," -quiet - No server output\n"); 347 BIO_printf(bio_err," -no_tmp_rsa - Do not generate a tmp RSA key\n"); 348 BIO_printf(bio_err," -ssl2 - Just talk SSLv2\n"); 349 BIO_printf(bio_err," -ssl3 - Just talk SSLv3\n"); 350 BIO_printf(bio_err," -tls1 - Just talk TLSv1\n"); 351 BIO_printf(bio_err," -dtls1 - Just talk DTLSv1\n"); 352 BIO_printf(bio_err," -timeout - Enable timeouts\n"); 353 BIO_printf(bio_err," -mtu - Set MTU\n"); 354 BIO_printf(bio_err," -chain - Read a certificate chain\n"); 355 BIO_printf(bio_err," -no_ssl2 - Just disable SSLv2\n"); 356 BIO_printf(bio_err," -no_ssl3 - Just disable SSLv3\n"); 357 BIO_printf(bio_err," -no_tls1 - Just disable TLSv1\n"); 358 #ifndef OPENSSL_NO_DH 359 BIO_printf(bio_err," -no_dhe - Disable ephemeral DH\n"); 360 #endif 361 #ifndef OPENSSL_NO_ECDH 362 BIO_printf(bio_err," -no_ecdhe - Disable ephemeral ECDH\n"); 363 #endif 364 BIO_printf(bio_err," -bugs - Turn on SSL bug compatibility\n"); 365 BIO_printf(bio_err," -www - Respond to a 'GET /' with a status page\n"); 366 BIO_printf(bio_err," -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); 367 BIO_printf(bio_err," -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); 368 BIO_printf(bio_err," with the assumption it contains a complete HTTP response.\n"); 369 #ifndef OPENSSL_NO_ENGINE 370 BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n"); 371 #endif 372 BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n"); 373 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 374 } 375 376 static int local_argc=0; 377 static char **local_argv; 378 379 #ifdef CHARSET_EBCDIC 380 static int ebcdic_new(BIO *bi); 381 static int ebcdic_free(BIO *a); 382 static int ebcdic_read(BIO *b, char *out, int outl); 383 static int ebcdic_write(BIO *b, const char *in, int inl); 384 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr); 385 static int ebcdic_gets(BIO *bp, char *buf, int size); 386 static int ebcdic_puts(BIO *bp, const char *str); 387 388 #define BIO_TYPE_EBCDIC_FILTER (18|0x0200) 389 static BIO_METHOD methods_ebcdic= 390 { 391 BIO_TYPE_EBCDIC_FILTER, 392 "EBCDIC/ASCII filter", 393 ebcdic_write, 394 ebcdic_read, 395 ebcdic_puts, 396 ebcdic_gets, 397 ebcdic_ctrl, 398 ebcdic_new, 399 ebcdic_free, 400 }; 401 402 typedef struct 403 { 404 size_t alloced; 405 char buff[1]; 406 } EBCDIC_OUTBUFF; 407 408 BIO_METHOD *BIO_f_ebcdic_filter() 409 { 410 return(&methods_ebcdic); 411 } 412 413 static int ebcdic_new(BIO *bi) 414 { 415 EBCDIC_OUTBUFF *wbuf; 416 417 wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024); 418 wbuf->alloced = 1024; 419 wbuf->buff[0] = '\0'; 420 421 bi->ptr=(char *)wbuf; 422 bi->init=1; 423 bi->flags=0; 424 return(1); 425 } 426 427 static int ebcdic_free(BIO *a) 428 { 429 if (a == NULL) return(0); 430 if (a->ptr != NULL) 431 OPENSSL_free(a->ptr); 432 a->ptr=NULL; 433 a->init=0; 434 a->flags=0; 435 return(1); 436 } 437 438 static int ebcdic_read(BIO *b, char *out, int outl) 439 { 440 int ret=0; 441 442 if (out == NULL || outl == 0) return(0); 443 if (b->next_bio == NULL) return(0); 444 445 ret=BIO_read(b->next_bio,out,outl); 446 if (ret > 0) 447 ascii2ebcdic(out,out,ret); 448 return(ret); 449 } 450 451 static int ebcdic_write(BIO *b, const char *in, int inl) 452 { 453 EBCDIC_OUTBUFF *wbuf; 454 int ret=0; 455 int num; 456 unsigned char n; 457 458 if ((in == NULL) || (inl <= 0)) return(0); 459 if (b->next_bio == NULL) return(0); 460 461 wbuf=(EBCDIC_OUTBUFF *)b->ptr; 462 463 if (inl > (num = wbuf->alloced)) 464 { 465 num = num + num; /* double the size */ 466 if (num < inl) 467 num = inl; 468 OPENSSL_free(wbuf); 469 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num); 470 471 wbuf->alloced = num; 472 wbuf->buff[0] = '\0'; 473 474 b->ptr=(char *)wbuf; 475 } 476 477 ebcdic2ascii(wbuf->buff, in, inl); 478 479 ret=BIO_write(b->next_bio, wbuf->buff, inl); 480 481 return(ret); 482 } 483 484 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr) 485 { 486 long ret; 487 488 if (b->next_bio == NULL) return(0); 489 switch (cmd) 490 { 491 case BIO_CTRL_DUP: 492 ret=0L; 493 break; 494 default: 495 ret=BIO_ctrl(b->next_bio,cmd,num,ptr); 496 break; 497 } 498 return(ret); 499 } 500 501 static int ebcdic_gets(BIO *bp, char *buf, int size) 502 { 503 int i, ret=0; 504 if (bp->next_bio == NULL) return(0); 505 /* return(BIO_gets(bp->next_bio,buf,size));*/ 506 for (i=0; i<size-1; ++i) 507 { 508 ret = ebcdic_read(bp,&buf[i],1); 509 if (ret <= 0) 510 break; 511 else if (buf[i] == '\n') 512 { 513 ++i; 514 break; 515 } 516 } 517 if (i < size) 518 buf[i] = '\0'; 519 return (ret < 0 && i == 0) ? ret : i; 520 } 521 522 static int ebcdic_puts(BIO *bp, const char *str) 523 { 524 if (bp->next_bio == NULL) return(0); 525 return ebcdic_write(bp, str, strlen(str)); 526 } 527 #endif 528 529 int MAIN(int, char **); 530 531 int MAIN(int argc, char *argv[]) 532 { 533 X509_STORE *store = NULL; 534 int vflags = 0; 535 short port=PORT; 536 char *CApath=NULL,*CAfile=NULL; 537 unsigned char *context = NULL; 538 char *dhfile = NULL; 539 #ifndef OPENSSL_NO_ECDH 540 char *named_curve = NULL; 541 #endif 542 int badop=0,bugs=0; 543 int ret=1; 544 int off=0; 545 int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0; 546 int state=0; 547 SSL_METHOD *meth=NULL; 548 #ifdef sock_type 549 #undef sock_type 550 #endif 551 int sock_type=SOCK_STREAM; 552 #ifndef OPENSSL_NO_ENGINE 553 ENGINE *e=NULL; 554 #endif 555 char *inrand=NULL; 556 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM; 557 char *passarg = NULL, *pass = NULL; 558 char *dpassarg = NULL, *dpass = NULL; 559 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM; 560 X509 *s_cert = NULL, *s_dcert = NULL; 561 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 562 563 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) 564 meth=SSLv23_server_method(); 565 #elif !defined(OPENSSL_NO_SSL3) 566 meth=SSLv3_server_method(); 567 #elif !defined(OPENSSL_NO_SSL2) 568 meth=SSLv2_server_method(); 569 #endif 570 571 local_argc=argc; 572 local_argv=argv; 573 574 apps_startup(); 575 #ifdef MONOLITH 576 s_server_init(); 577 #endif 578 579 if (bio_err == NULL) 580 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE); 581 582 if (!load_config(bio_err, NULL)) 583 goto end; 584 585 verify_depth=0; 586 #ifdef FIONBIO 587 s_nbio=0; 588 #endif 589 s_nbio_test=0; 590 591 argc--; 592 argv++; 593 594 while (argc >= 1) 595 { 596 if ((strcmp(*argv,"-port") == 0) || 597 (strcmp(*argv,"-accept") == 0)) 598 { 599 if (--argc < 1) goto bad; 600 if (!extract_port(*(++argv),&port)) 601 goto bad; 602 } 603 else if (strcmp(*argv,"-verify") == 0) 604 { 605 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE; 606 if (--argc < 1) goto bad; 607 verify_depth=atoi(*(++argv)); 608 BIO_printf(bio_err,"verify depth is %d\n",verify_depth); 609 } 610 else if (strcmp(*argv,"-Verify") == 0) 611 { 612 s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT| 613 SSL_VERIFY_CLIENT_ONCE; 614 if (--argc < 1) goto bad; 615 verify_depth=atoi(*(++argv)); 616 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth); 617 } 618 else if (strcmp(*argv,"-context") == 0) 619 { 620 if (--argc < 1) goto bad; 621 context= (unsigned char *)*(++argv); 622 } 623 else if (strcmp(*argv,"-cert") == 0) 624 { 625 if (--argc < 1) goto bad; 626 s_cert_file= *(++argv); 627 } 628 else if (strcmp(*argv,"-certform") == 0) 629 { 630 if (--argc < 1) goto bad; 631 s_cert_format = str2fmt(*(++argv)); 632 } 633 else if (strcmp(*argv,"-key") == 0) 634 { 635 if (--argc < 1) goto bad; 636 s_key_file= *(++argv); 637 } 638 else if (strcmp(*argv,"-keyform") == 0) 639 { 640 if (--argc < 1) goto bad; 641 s_key_format = str2fmt(*(++argv)); 642 } 643 else if (strcmp(*argv,"-pass") == 0) 644 { 645 if (--argc < 1) goto bad; 646 passarg = *(++argv); 647 } 648 else if (strcmp(*argv,"-dhparam") == 0) 649 { 650 if (--argc < 1) goto bad; 651 dhfile = *(++argv); 652 } 653 #ifndef OPENSSL_NO_ECDH 654 else if (strcmp(*argv,"-named_curve") == 0) 655 { 656 if (--argc < 1) goto bad; 657 named_curve = *(++argv); 658 } 659 #endif 660 else if (strcmp(*argv,"-dcertform") == 0) 661 { 662 if (--argc < 1) goto bad; 663 s_dcert_format = str2fmt(*(++argv)); 664 } 665 else if (strcmp(*argv,"-dcert") == 0) 666 { 667 if (--argc < 1) goto bad; 668 s_dcert_file= *(++argv); 669 } 670 else if (strcmp(*argv,"-dkeyform") == 0) 671 { 672 if (--argc < 1) goto bad; 673 s_dkey_format = str2fmt(*(++argv)); 674 } 675 else if (strcmp(*argv,"-dpass") == 0) 676 { 677 if (--argc < 1) goto bad; 678 dpassarg = *(++argv); 679 } 680 else if (strcmp(*argv,"-dkey") == 0) 681 { 682 if (--argc < 1) goto bad; 683 s_dkey_file= *(++argv); 684 } 685 else if (strcmp(*argv,"-nocert") == 0) 686 { 687 nocert=1; 688 } 689 else if (strcmp(*argv,"-CApath") == 0) 690 { 691 if (--argc < 1) goto bad; 692 CApath= *(++argv); 693 } 694 else if (strcmp(*argv,"-crl_check") == 0) 695 { 696 vflags |= X509_V_FLAG_CRL_CHECK; 697 } 698 else if (strcmp(*argv,"-crl_check") == 0) 699 { 700 vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL; 701 } 702 else if (strcmp(*argv,"-serverpref") == 0) 703 { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; } 704 else if (strcmp(*argv,"-cipher") == 0) 705 { 706 if (--argc < 1) goto bad; 707 cipher= *(++argv); 708 } 709 else if (strcmp(*argv,"-CAfile") == 0) 710 { 711 if (--argc < 1) goto bad; 712 CAfile= *(++argv); 713 } 714 #ifdef FIONBIO 715 else if (strcmp(*argv,"-nbio") == 0) 716 { s_nbio=1; } 717 #endif 718 else if (strcmp(*argv,"-nbio_test") == 0) 719 { 720 #ifdef FIONBIO 721 s_nbio=1; 722 #endif 723 s_nbio_test=1; 724 } 725 else if (strcmp(*argv,"-debug") == 0) 726 { s_debug=1; } 727 else if (strcmp(*argv,"-msg") == 0) 728 { s_msg=1; } 729 else if (strcmp(*argv,"-hack") == 0) 730 { hack=1; } 731 else if (strcmp(*argv,"-state") == 0) 732 { state=1; } 733 else if (strcmp(*argv,"-crlf") == 0) 734 { s_crlf=1; } 735 else if (strcmp(*argv,"-quiet") == 0) 736 { s_quiet=1; } 737 else if (strcmp(*argv,"-bugs") == 0) 738 { bugs=1; } 739 else if (strcmp(*argv,"-no_tmp_rsa") == 0) 740 { no_tmp_rsa=1; } 741 else if (strcmp(*argv,"-no_dhe") == 0) 742 { no_dhe=1; } 743 else if (strcmp(*argv,"-no_ecdhe") == 0) 744 { no_ecdhe=1; } 745 else if (strcmp(*argv,"-www") == 0) 746 { www=1; } 747 else if (strcmp(*argv,"-WWW") == 0) 748 { www=2; } 749 else if (strcmp(*argv,"-HTTP") == 0) 750 { www=3; } 751 else if (strcmp(*argv,"-no_ssl2") == 0) 752 { off|=SSL_OP_NO_SSLv2; } 753 else if (strcmp(*argv,"-no_ssl3") == 0) 754 { off|=SSL_OP_NO_SSLv3; } 755 else if (strcmp(*argv,"-no_tls1") == 0) 756 { off|=SSL_OP_NO_TLSv1; } 757 #ifndef OPENSSL_NO_SSL2 758 else if (strcmp(*argv,"-ssl2") == 0) 759 { meth=SSLv2_server_method(); } 760 #endif 761 #ifndef OPENSSL_NO_SSL3 762 else if (strcmp(*argv,"-ssl3") == 0) 763 { meth=SSLv3_server_method(); } 764 #endif 765 #ifndef OPENSSL_NO_TLS1 766 else if (strcmp(*argv,"-tls1") == 0) 767 { meth=TLSv1_server_method(); } 768 #endif 769 #ifndef OPENSSL_NO_DTLS1 770 else if (strcmp(*argv,"-dtls1") == 0) 771 { 772 meth=DTLSv1_server_method(); 773 sock_type = SOCK_DGRAM; 774 } 775 else if (strcmp(*argv,"-timeout") == 0) 776 enable_timeouts = 1; 777 else if (strcmp(*argv,"-mtu") == 0) 778 { 779 if (--argc < 1) goto bad; 780 mtu = atol(*(++argv)); 781 } 782 else if (strcmp(*argv, "-chain") == 0) 783 cert_chain = 1; 784 #endif 785 else if (strcmp(*argv, "-id_prefix") == 0) 786 { 787 if (--argc < 1) goto bad; 788 session_id_prefix = *(++argv); 789 } 790 #ifndef OPENSSL_NO_ENGINE 791 else if (strcmp(*argv,"-engine") == 0) 792 { 793 if (--argc < 1) goto bad; 794 engine_id= *(++argv); 795 } 796 #endif 797 else if (strcmp(*argv,"-rand") == 0) 798 { 799 if (--argc < 1) goto bad; 800 inrand= *(++argv); 801 } 802 else 803 { 804 BIO_printf(bio_err,"unknown option %s\n",*argv); 805 badop=1; 806 break; 807 } 808 argc--; 809 argv++; 810 } 811 if (badop) 812 { 813 bad: 814 sv_usage(); 815 goto end; 816 } 817 818 SSL_load_error_strings(); 819 OpenSSL_add_ssl_algorithms(); 820 821 #ifndef OPENSSL_NO_ENGINE 822 e = setup_engine(bio_err, engine_id, 1); 823 #endif 824 825 if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) 826 { 827 BIO_printf(bio_err, "Error getting password\n"); 828 goto end; 829 } 830 831 832 if (s_key_file == NULL) 833 s_key_file = s_cert_file; 834 835 if (nocert == 0) 836 { 837 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e, 838 "server certificate private key file"); 839 if (!s_key) 840 { 841 ERR_print_errors(bio_err); 842 goto end; 843 } 844 845 s_cert = load_cert(bio_err,s_cert_file,s_cert_format, 846 NULL, e, "server certificate file"); 847 848 if (!s_cert) 849 { 850 ERR_print_errors(bio_err); 851 goto end; 852 } 853 } 854 855 if (s_dcert_file) 856 { 857 858 if (s_dkey_file == NULL) 859 s_dkey_file = s_dcert_file; 860 861 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format, 862 0, dpass, e, 863 "second certificate private key file"); 864 if (!s_dkey) 865 { 866 ERR_print_errors(bio_err); 867 goto end; 868 } 869 870 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format, 871 NULL, e, "second server certificate file"); 872 873 if (!s_dcert) 874 { 875 ERR_print_errors(bio_err); 876 goto end; 877 } 878 879 } 880 881 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 882 && !RAND_status()) 883 { 884 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 885 } 886 if (inrand != NULL) 887 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 888 app_RAND_load_files(inrand)); 889 890 if (bio_s_out == NULL) 891 { 892 if (s_quiet && !s_debug && !s_msg) 893 { 894 bio_s_out=BIO_new(BIO_s_null()); 895 } 896 else 897 { 898 if (bio_s_out == NULL) 899 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE); 900 } 901 } 902 903 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA) 904 if (nocert) 905 #endif 906 { 907 s_cert_file=NULL; 908 s_key_file=NULL; 909 s_dcert_file=NULL; 910 s_dkey_file=NULL; 911 } 912 913 ctx=SSL_CTX_new(meth); 914 if (ctx == NULL) 915 { 916 ERR_print_errors(bio_err); 917 goto end; 918 } 919 if (session_id_prefix) 920 { 921 if(strlen(session_id_prefix) >= 32) 922 BIO_printf(bio_err, 923 "warning: id_prefix is too long, only one new session will be possible\n"); 924 else if(strlen(session_id_prefix) >= 16) 925 BIO_printf(bio_err, 926 "warning: id_prefix is too long if you use SSLv2\n"); 927 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) 928 { 929 BIO_printf(bio_err,"error setting 'id_prefix'\n"); 930 ERR_print_errors(bio_err); 931 goto end; 932 } 933 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix); 934 } 935 SSL_CTX_set_quiet_shutdown(ctx,1); 936 if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL); 937 if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG); 938 SSL_CTX_set_options(ctx,off); 939 /* DTLS: partial reads end up discarding unread UDP bytes :-( 940 * Setting read ahead solves this problem. 941 */ 942 if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1); 943 944 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback); 945 946 SSL_CTX_sess_set_cache_size(ctx,128); 947 948 #if 0 949 if (cipher == NULL) cipher=getenv("SSL_CIPHER"); 950 #endif 951 952 #if 0 953 if (s_cert_file == NULL) 954 { 955 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n"); 956 goto end; 957 } 958 #endif 959 960 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) || 961 (!SSL_CTX_set_default_verify_paths(ctx))) 962 { 963 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */ 964 ERR_print_errors(bio_err); 965 /* goto end; */ 966 } 967 store = SSL_CTX_get_cert_store(ctx); 968 X509_STORE_set_flags(store, vflags); 969 970 #ifndef OPENSSL_NO_DH 971 if (!no_dhe) 972 { 973 DH *dh=NULL; 974 975 if (dhfile) 976 dh = load_dh_param(dhfile); 977 else if (s_cert_file) 978 dh = load_dh_param(s_cert_file); 979 980 if (dh != NULL) 981 { 982 BIO_printf(bio_s_out,"Setting temp DH parameters\n"); 983 } 984 else 985 { 986 BIO_printf(bio_s_out,"Using default temp DH parameters\n"); 987 dh=get_dh512(); 988 } 989 (void)BIO_flush(bio_s_out); 990 991 SSL_CTX_set_tmp_dh(ctx,dh); 992 DH_free(dh); 993 } 994 #endif 995 996 #ifndef OPENSSL_NO_ECDH 997 if (!no_ecdhe) 998 { 999 EC_KEY *ecdh=NULL; 1000 1001 if (named_curve) 1002 { 1003 int nid = OBJ_sn2nid(named_curve); 1004 1005 if (nid == 0) 1006 { 1007 BIO_printf(bio_err, "unknown curve name (%s)\n", 1008 named_curve); 1009 goto end; 1010 } 1011 ecdh = EC_KEY_new_by_curve_name(nid); 1012 if (ecdh == NULL) 1013 { 1014 BIO_printf(bio_err, "unable to create curve (%s)\n", 1015 named_curve); 1016 goto end; 1017 } 1018 } 1019 1020 if (ecdh != NULL) 1021 { 1022 BIO_printf(bio_s_out,"Setting temp ECDH parameters\n"); 1023 } 1024 else 1025 { 1026 BIO_printf(bio_s_out,"Using default temp ECDH parameters\n"); 1027 ecdh = EC_KEY_new_by_curve_name(NID_sect163r2); 1028 if (ecdh == NULL) 1029 { 1030 BIO_printf(bio_err, "unable to create curve (sect163r2)\n"); 1031 goto end; 1032 } 1033 } 1034 (void)BIO_flush(bio_s_out); 1035 1036 SSL_CTX_set_tmp_ecdh(ctx,ecdh); 1037 EC_KEY_free(ecdh); 1038 } 1039 #endif 1040 1041 if (!set_cert_key_stuff(ctx,s_cert,s_key)) 1042 goto end; 1043 if (s_dcert != NULL) 1044 { 1045 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey)) 1046 goto end; 1047 } 1048 1049 #ifndef OPENSSL_NO_RSA 1050 #if 1 1051 if (!no_tmp_rsa) 1052 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb); 1053 #else 1054 if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx)) 1055 { 1056 RSA *rsa; 1057 1058 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key..."); 1059 BIO_flush(bio_s_out); 1060 1061 rsa=RSA_generate_key(512,RSA_F4,NULL); 1062 1063 if (!SSL_CTX_set_tmp_rsa(ctx,rsa)) 1064 { 1065 ERR_print_errors(bio_err); 1066 goto end; 1067 } 1068 RSA_free(rsa); 1069 BIO_printf(bio_s_out,"\n"); 1070 } 1071 #endif 1072 #endif 1073 1074 if (cipher != NULL) 1075 if(!SSL_CTX_set_cipher_list(ctx,cipher)) { 1076 BIO_printf(bio_err,"error setting cipher list\n"); 1077 ERR_print_errors(bio_err); 1078 goto end; 1079 } 1080 SSL_CTX_set_verify(ctx,s_server_verify,verify_callback); 1081 SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context, 1082 sizeof s_server_session_id_context); 1083 1084 if (CAfile != NULL) 1085 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile)); 1086 1087 BIO_printf(bio_s_out,"ACCEPT\n"); 1088 if (www) 1089 do_server(port,sock_type,&accept_socket,www_body, context); 1090 else 1091 do_server(port,sock_type,&accept_socket,sv_body, context); 1092 print_stats(bio_s_out,ctx); 1093 ret=0; 1094 end: 1095 if (ctx != NULL) SSL_CTX_free(ctx); 1096 if (s_cert) 1097 X509_free(s_cert); 1098 if (s_dcert) 1099 X509_free(s_dcert); 1100 if (s_key) 1101 EVP_PKEY_free(s_key); 1102 if (s_dkey) 1103 EVP_PKEY_free(s_dkey); 1104 if (pass) 1105 OPENSSL_free(pass); 1106 if (dpass) 1107 OPENSSL_free(dpass); 1108 if (bio_s_out != NULL) 1109 { 1110 BIO_free(bio_s_out); 1111 bio_s_out=NULL; 1112 } 1113 apps_shutdown(); 1114 OPENSSL_EXIT(ret); 1115 } 1116 1117 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx) 1118 { 1119 BIO_printf(bio,"%4ld items in the session cache\n", 1120 SSL_CTX_sess_number(ssl_ctx)); 1121 BIO_printf(bio,"%4ld client connects (SSL_connect())\n", 1122 SSL_CTX_sess_connect(ssl_ctx)); 1123 BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n", 1124 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 1125 BIO_printf(bio,"%4ld client connects that finished\n", 1126 SSL_CTX_sess_connect_good(ssl_ctx)); 1127 BIO_printf(bio,"%4ld server accepts (SSL_accept())\n", 1128 SSL_CTX_sess_accept(ssl_ctx)); 1129 BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n", 1130 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 1131 BIO_printf(bio,"%4ld server accepts that finished\n", 1132 SSL_CTX_sess_accept_good(ssl_ctx)); 1133 BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx)); 1134 BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx)); 1135 BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx)); 1136 BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx)); 1137 BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n", 1138 SSL_CTX_sess_cache_full(ssl_ctx), 1139 SSL_CTX_sess_get_cache_size(ssl_ctx)); 1140 } 1141 1142 static int sv_body(char *hostname, int s, unsigned char *context) 1143 { 1144 char *buf=NULL; 1145 fd_set readfds; 1146 int ret=1,width; 1147 int k,i; 1148 unsigned long l; 1149 SSL *con=NULL; 1150 BIO *sbio; 1151 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) 1152 struct timeval tv; 1153 #endif 1154 1155 if ((buf=OPENSSL_malloc(bufsize)) == NULL) 1156 { 1157 BIO_printf(bio_err,"out of memory\n"); 1158 goto err; 1159 } 1160 #ifdef FIONBIO 1161 if (s_nbio) 1162 { 1163 unsigned long sl=1; 1164 1165 if (!s_quiet) 1166 BIO_printf(bio_err,"turning on non blocking io\n"); 1167 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0) 1168 ERR_print_errors(bio_err); 1169 } 1170 #endif 1171 1172 if (con == NULL) { 1173 con=SSL_new(ctx); 1174 #ifndef OPENSSL_NO_KRB5 1175 if ((con->kssl_ctx = kssl_ctx_new()) != NULL) 1176 { 1177 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, 1178 KRB5SVC); 1179 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, 1180 KRB5KEYTAB); 1181 } 1182 #endif /* OPENSSL_NO_KRB5 */ 1183 if(context) 1184 SSL_set_session_id_context(con, context, 1185 strlen((char *)context)); 1186 } 1187 SSL_clear(con); 1188 1189 if (SSL_version(con) == DTLS1_VERSION) 1190 { 1191 struct timeval timeout; 1192 1193 sbio=BIO_new_dgram(s,BIO_NOCLOSE); 1194 1195 if ( enable_timeouts) 1196 { 1197 timeout.tv_sec = 0; 1198 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1199 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1200 1201 timeout.tv_sec = 0; 1202 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1203 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1204 } 1205 1206 1207 if ( mtu > 0) 1208 { 1209 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1210 SSL_set_mtu(con, mtu); 1211 } 1212 else 1213 /* want to do MTU discovery */ 1214 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1215 1216 /* turn on cookie exchange */ 1217 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 1218 } 1219 else 1220 sbio=BIO_new_socket(s,BIO_NOCLOSE); 1221 1222 if (s_nbio_test) 1223 { 1224 BIO *test; 1225 1226 test=BIO_new(BIO_f_nbio_test()); 1227 sbio=BIO_push(test,sbio); 1228 } 1229 SSL_set_bio(con,sbio,sbio); 1230 SSL_set_accept_state(con); 1231 /* SSL_set_fd(con,s); */ 1232 1233 if (s_debug) 1234 { 1235 con->debug=1; 1236 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback); 1237 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out); 1238 } 1239 if (s_msg) 1240 { 1241 SSL_set_msg_callback(con, msg_cb); 1242 SSL_set_msg_callback_arg(con, bio_s_out); 1243 } 1244 1245 width=s+1; 1246 for (;;) 1247 { 1248 int read_from_terminal; 1249 int read_from_sslcon; 1250 1251 read_from_terminal = 0; 1252 read_from_sslcon = SSL_pending(con); 1253 1254 if (!read_from_sslcon) 1255 { 1256 FD_ZERO(&readfds); 1257 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) 1258 FD_SET(fileno(stdin),&readfds); 1259 #endif 1260 FD_SET(s,&readfds); 1261 /* Note: under VMS with SOCKETSHR the second parameter is 1262 * currently of type (int *) whereas under other systems 1263 * it is (void *) if you don't have a cast it will choke 1264 * the compiler: if you do have a cast then you can either 1265 * go for (int *) or (void *). 1266 */ 1267 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) 1268 /* Under DOS (non-djgpp) and Windows we can't select on stdin: only 1269 * on sockets. As a workaround we timeout the select every 1270 * second and check for any keypress. In a proper Windows 1271 * application we wouldn't do this because it is inefficient. 1272 */ 1273 tv.tv_sec = 1; 1274 tv.tv_usec = 0; 1275 i=select(width,(void *)&readfds,NULL,NULL,&tv); 1276 if((i < 0) || (!i && !_kbhit() ) )continue; 1277 if(_kbhit()) 1278 read_from_terminal = 1; 1279 #else 1280 i=select(width,(void *)&readfds,NULL,NULL,NULL); 1281 if (i <= 0) continue; 1282 if (FD_ISSET(fileno(stdin),&readfds)) 1283 read_from_terminal = 1; 1284 #endif 1285 if (FD_ISSET(s,&readfds)) 1286 read_from_sslcon = 1; 1287 } 1288 if (read_from_terminal) 1289 { 1290 if (s_crlf) 1291 { 1292 int j, lf_num; 1293 1294 i=read(fileno(stdin), buf, bufsize/2); 1295 lf_num = 0; 1296 /* both loops are skipped when i <= 0 */ 1297 for (j = 0; j < i; j++) 1298 if (buf[j] == '\n') 1299 lf_num++; 1300 for (j = i-1; j >= 0; j--) 1301 { 1302 buf[j+lf_num] = buf[j]; 1303 if (buf[j] == '\n') 1304 { 1305 lf_num--; 1306 i++; 1307 buf[j+lf_num] = '\r'; 1308 } 1309 } 1310 assert(lf_num == 0); 1311 } 1312 else 1313 i=read(fileno(stdin),buf,bufsize); 1314 if (!s_quiet) 1315 { 1316 if ((i <= 0) || (buf[0] == 'Q')) 1317 { 1318 BIO_printf(bio_s_out,"DONE\n"); 1319 SHUTDOWN(s); 1320 close_accept_socket(); 1321 ret= -11; 1322 goto err; 1323 } 1324 if ((i <= 0) || (buf[0] == 'q')) 1325 { 1326 BIO_printf(bio_s_out,"DONE\n"); 1327 if (SSL_version(con) != DTLS1_VERSION) 1328 SHUTDOWN(s); 1329 /* close_accept_socket(); 1330 ret= -11;*/ 1331 goto err; 1332 } 1333 if ((buf[0] == 'r') && 1334 ((buf[1] == '\n') || (buf[1] == '\r'))) 1335 { 1336 SSL_renegotiate(con); 1337 i=SSL_do_handshake(con); 1338 printf("SSL_do_handshake -> %d\n",i); 1339 i=0; /*13; */ 1340 continue; 1341 /* strcpy(buf,"server side RE-NEGOTIATE\n"); */ 1342 } 1343 if ((buf[0] == 'R') && 1344 ((buf[1] == '\n') || (buf[1] == '\r'))) 1345 { 1346 SSL_set_verify(con, 1347 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL); 1348 SSL_renegotiate(con); 1349 i=SSL_do_handshake(con); 1350 printf("SSL_do_handshake -> %d\n",i); 1351 i=0; /* 13; */ 1352 continue; 1353 /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */ 1354 } 1355 if (buf[0] == 'P') 1356 { 1357 static const char *str="Lets print some clear text\n"; 1358 BIO_write(SSL_get_wbio(con),str,strlen(str)); 1359 } 1360 if (buf[0] == 'S') 1361 { 1362 print_stats(bio_s_out,SSL_get_SSL_CTX(con)); 1363 } 1364 } 1365 #ifdef CHARSET_EBCDIC 1366 ebcdic2ascii(buf,buf,i); 1367 #endif 1368 l=k=0; 1369 for (;;) 1370 { 1371 /* should do a select for the write */ 1372 #ifdef RENEG 1373 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } } 1374 #endif 1375 k=SSL_write(con,&(buf[l]),(unsigned int)i); 1376 switch (SSL_get_error(con,k)) 1377 { 1378 case SSL_ERROR_NONE: 1379 break; 1380 case SSL_ERROR_WANT_WRITE: 1381 case SSL_ERROR_WANT_READ: 1382 case SSL_ERROR_WANT_X509_LOOKUP: 1383 BIO_printf(bio_s_out,"Write BLOCK\n"); 1384 break; 1385 case SSL_ERROR_SYSCALL: 1386 case SSL_ERROR_SSL: 1387 BIO_printf(bio_s_out,"ERROR\n"); 1388 ERR_print_errors(bio_err); 1389 ret=1; 1390 goto err; 1391 /* break; */ 1392 case SSL_ERROR_ZERO_RETURN: 1393 BIO_printf(bio_s_out,"DONE\n"); 1394 ret=1; 1395 goto err; 1396 } 1397 l+=k; 1398 i-=k; 1399 if (i <= 0) break; 1400 } 1401 } 1402 if (read_from_sslcon) 1403 { 1404 if (!SSL_is_init_finished(con)) 1405 { 1406 i=init_ssl_connection(con); 1407 1408 if (i < 0) 1409 { 1410 ret=0; 1411 goto err; 1412 } 1413 else if (i == 0) 1414 { 1415 ret=1; 1416 goto err; 1417 } 1418 } 1419 else 1420 { 1421 again: 1422 i=SSL_read(con,(char *)buf,bufsize); 1423 switch (SSL_get_error(con,i)) 1424 { 1425 case SSL_ERROR_NONE: 1426 #ifdef CHARSET_EBCDIC 1427 ascii2ebcdic(buf,buf,i); 1428 #endif 1429 write(fileno(stdout),buf, 1430 (unsigned int)i); 1431 if (SSL_pending(con)) goto again; 1432 break; 1433 case SSL_ERROR_WANT_WRITE: 1434 case SSL_ERROR_WANT_READ: 1435 case SSL_ERROR_WANT_X509_LOOKUP: 1436 BIO_printf(bio_s_out,"Read BLOCK\n"); 1437 break; 1438 case SSL_ERROR_SYSCALL: 1439 case SSL_ERROR_SSL: 1440 BIO_printf(bio_s_out,"ERROR\n"); 1441 ERR_print_errors(bio_err); 1442 ret=1; 1443 goto err; 1444 case SSL_ERROR_ZERO_RETURN: 1445 BIO_printf(bio_s_out,"DONE\n"); 1446 ret=1; 1447 goto err; 1448 } 1449 } 1450 } 1451 } 1452 err: 1453 BIO_printf(bio_s_out,"shutting down SSL\n"); 1454 #if 1 1455 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); 1456 #else 1457 SSL_shutdown(con); 1458 #endif 1459 if (con != NULL) SSL_free(con); 1460 BIO_printf(bio_s_out,"CONNECTION CLOSED\n"); 1461 if (buf != NULL) 1462 { 1463 OPENSSL_cleanse(buf,bufsize); 1464 OPENSSL_free(buf); 1465 } 1466 if (ret >= 0) 1467 BIO_printf(bio_s_out,"ACCEPT\n"); 1468 return(ret); 1469 } 1470 1471 static void close_accept_socket(void) 1472 { 1473 BIO_printf(bio_err,"shutdown accept socket\n"); 1474 if (accept_socket >= 0) 1475 { 1476 SHUTDOWN2(accept_socket); 1477 } 1478 } 1479 1480 static int init_ssl_connection(SSL *con) 1481 { 1482 int i; 1483 const char *str; 1484 X509 *peer; 1485 long verify_error; 1486 MS_STATIC char buf[BUFSIZ]; 1487 1488 if ((i=SSL_accept(con)) <= 0) 1489 { 1490 if (BIO_sock_should_retry(i)) 1491 { 1492 BIO_printf(bio_s_out,"DELAY\n"); 1493 return(1); 1494 } 1495 1496 BIO_printf(bio_err,"ERROR\n"); 1497 verify_error=SSL_get_verify_result(con); 1498 if (verify_error != X509_V_OK) 1499 { 1500 BIO_printf(bio_err,"verify error:%s\n", 1501 X509_verify_cert_error_string(verify_error)); 1502 } 1503 else 1504 ERR_print_errors(bio_err); 1505 return(0); 1506 } 1507 1508 PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con)); 1509 1510 peer=SSL_get_peer_certificate(con); 1511 if (peer != NULL) 1512 { 1513 BIO_printf(bio_s_out,"Client certificate\n"); 1514 PEM_write_bio_X509(bio_s_out,peer); 1515 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf); 1516 BIO_printf(bio_s_out,"subject=%s\n",buf); 1517 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf); 1518 BIO_printf(bio_s_out,"issuer=%s\n",buf); 1519 X509_free(peer); 1520 } 1521 1522 if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL) 1523 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf); 1524 str=SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 1525 BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)"); 1526 if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n"); 1527 if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) & 1528 TLS1_FLAGS_TLS_PADDING_BUG) 1529 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n"); 1530 #ifndef OPENSSL_NO_KRB5 1531 if (con->kssl_ctx->client_princ != NULL) 1532 { 1533 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n", 1534 con->kssl_ctx->client_princ); 1535 } 1536 #endif /* OPENSSL_NO_KRB5 */ 1537 return(1); 1538 } 1539 1540 #ifndef OPENSSL_NO_DH 1541 static DH *load_dh_param(const char *dhfile) 1542 { 1543 DH *ret=NULL; 1544 BIO *bio; 1545 1546 if ((bio=BIO_new_file(dhfile,"r")) == NULL) 1547 goto err; 1548 ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL); 1549 err: 1550 if (bio != NULL) BIO_free(bio); 1551 return(ret); 1552 } 1553 #endif 1554 1555 #if 0 1556 static int load_CA(SSL_CTX *ctx, char *file) 1557 { 1558 FILE *in; 1559 X509 *x=NULL; 1560 1561 if ((in=fopen(file,"r")) == NULL) 1562 return(0); 1563 1564 for (;;) 1565 { 1566 if (PEM_read_X509(in,&x,NULL) == NULL) 1567 break; 1568 SSL_CTX_add_client_CA(ctx,x); 1569 } 1570 if (x != NULL) X509_free(x); 1571 fclose(in); 1572 return(1); 1573 } 1574 #endif 1575 1576 static int www_body(char *hostname, int s, unsigned char *context) 1577 { 1578 char *buf=NULL; 1579 int ret=1; 1580 int i,j,k,blank,dot; 1581 struct stat st_buf; 1582 SSL *con; 1583 SSL_CIPHER *c; 1584 BIO *io,*ssl_bio,*sbio; 1585 long total_bytes; 1586 1587 buf=OPENSSL_malloc(bufsize); 1588 if (buf == NULL) return(0); 1589 io=BIO_new(BIO_f_buffer()); 1590 ssl_bio=BIO_new(BIO_f_ssl()); 1591 if ((io == NULL) || (ssl_bio == NULL)) goto err; 1592 1593 #ifdef FIONBIO 1594 if (s_nbio) 1595 { 1596 unsigned long sl=1; 1597 1598 if (!s_quiet) 1599 BIO_printf(bio_err,"turning on non blocking io\n"); 1600 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0) 1601 ERR_print_errors(bio_err); 1602 } 1603 #endif 1604 1605 /* lets make the output buffer a reasonable size */ 1606 if (!BIO_set_write_buffer_size(io,bufsize)) goto err; 1607 1608 if ((con=SSL_new(ctx)) == NULL) goto err; 1609 #ifndef OPENSSL_NO_KRB5 1610 if ((con->kssl_ctx = kssl_ctx_new()) != NULL) 1611 { 1612 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC); 1613 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB); 1614 } 1615 #endif /* OPENSSL_NO_KRB5 */ 1616 if(context) SSL_set_session_id_context(con, context, 1617 strlen((char *)context)); 1618 1619 sbio=BIO_new_socket(s,BIO_NOCLOSE); 1620 if (s_nbio_test) 1621 { 1622 BIO *test; 1623 1624 test=BIO_new(BIO_f_nbio_test()); 1625 sbio=BIO_push(test,sbio); 1626 } 1627 SSL_set_bio(con,sbio,sbio); 1628 SSL_set_accept_state(con); 1629 1630 /* SSL_set_fd(con,s); */ 1631 BIO_set_ssl(ssl_bio,con,BIO_CLOSE); 1632 BIO_push(io,ssl_bio); 1633 #ifdef CHARSET_EBCDIC 1634 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io); 1635 #endif 1636 1637 if (s_debug) 1638 { 1639 con->debug=1; 1640 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback); 1641 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out); 1642 } 1643 if (s_msg) 1644 { 1645 SSL_set_msg_callback(con, msg_cb); 1646 SSL_set_msg_callback_arg(con, bio_s_out); 1647 } 1648 1649 blank=0; 1650 for (;;) 1651 { 1652 if (hack) 1653 { 1654 i=SSL_accept(con); 1655 1656 switch (SSL_get_error(con,i)) 1657 { 1658 case SSL_ERROR_NONE: 1659 break; 1660 case SSL_ERROR_WANT_WRITE: 1661 case SSL_ERROR_WANT_READ: 1662 case SSL_ERROR_WANT_X509_LOOKUP: 1663 continue; 1664 case SSL_ERROR_SYSCALL: 1665 case SSL_ERROR_SSL: 1666 case SSL_ERROR_ZERO_RETURN: 1667 ret=1; 1668 goto err; 1669 /* break; */ 1670 } 1671 1672 SSL_renegotiate(con); 1673 SSL_write(con,NULL,0); 1674 } 1675 1676 i=BIO_gets(io,buf,bufsize-1); 1677 if (i < 0) /* error */ 1678 { 1679 if (!BIO_should_retry(io)) 1680 { 1681 if (!s_quiet) 1682 ERR_print_errors(bio_err); 1683 goto err; 1684 } 1685 else 1686 { 1687 BIO_printf(bio_s_out,"read R BLOCK\n"); 1688 #if defined(OPENSSL_SYS_NETWARE) 1689 delay(1000); 1690 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__) 1691 sleep(1); 1692 #endif 1693 continue; 1694 } 1695 } 1696 else if (i == 0) /* end of input */ 1697 { 1698 ret=1; 1699 goto end; 1700 } 1701 1702 /* else we have data */ 1703 if ( ((www == 1) && (strncmp("GET ",buf,4) == 0)) || 1704 ((www == 2) && (strncmp("GET /stats ",buf,10) == 0))) 1705 { 1706 char *p; 1707 X509 *peer; 1708 STACK_OF(SSL_CIPHER) *sk; 1709 static const char *space=" "; 1710 1711 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1712 BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 1713 BIO_puts(io,"<pre>\n"); 1714 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/ 1715 BIO_puts(io,"\n"); 1716 for (i=0; i<local_argc; i++) 1717 { 1718 BIO_puts(io,local_argv[i]); 1719 BIO_write(io," ",1); 1720 } 1721 BIO_puts(io,"\n"); 1722 1723 /* The following is evil and should not really 1724 * be done */ 1725 BIO_printf(io,"Ciphers supported in s_server binary\n"); 1726 sk=SSL_get_ciphers(con); 1727 j=sk_SSL_CIPHER_num(sk); 1728 for (i=0; i<j; i++) 1729 { 1730 c=sk_SSL_CIPHER_value(sk,i); 1731 BIO_printf(io,"%-11s:%-25s", 1732 SSL_CIPHER_get_version(c), 1733 SSL_CIPHER_get_name(c)); 1734 if ((((i+1)%2) == 0) && (i+1 != j)) 1735 BIO_puts(io,"\n"); 1736 } 1737 BIO_puts(io,"\n"); 1738 p=SSL_get_shared_ciphers(con,buf,bufsize); 1739 if (p != NULL) 1740 { 1741 BIO_printf(io,"---\nCiphers common between both SSL end points:\n"); 1742 j=i=0; 1743 while (*p) 1744 { 1745 if (*p == ':') 1746 { 1747 BIO_write(io,space,26-j); 1748 i++; 1749 j=0; 1750 BIO_write(io,((i%3)?" ":"\n"),1); 1751 } 1752 else 1753 { 1754 BIO_write(io,p,1); 1755 j++; 1756 } 1757 p++; 1758 } 1759 BIO_puts(io,"\n"); 1760 } 1761 BIO_printf(io,((con->hit) 1762 ?"---\nReused, " 1763 :"---\nNew, ")); 1764 c=SSL_get_current_cipher(con); 1765 BIO_printf(io,"%s, Cipher is %s\n", 1766 SSL_CIPHER_get_version(c), 1767 SSL_CIPHER_get_name(c)); 1768 SSL_SESSION_print(io,SSL_get_session(con)); 1769 BIO_printf(io,"---\n"); 1770 print_stats(io,SSL_get_SSL_CTX(con)); 1771 BIO_printf(io,"---\n"); 1772 peer=SSL_get_peer_certificate(con); 1773 if (peer != NULL) 1774 { 1775 BIO_printf(io,"Client certificate\n"); 1776 X509_print(io,peer); 1777 PEM_write_bio_X509(io,peer); 1778 } 1779 else 1780 BIO_puts(io,"no client certificate available\n"); 1781 BIO_puts(io,"</BODY></HTML>\r\n\r\n"); 1782 break; 1783 } 1784 else if ((www == 2 || www == 3) 1785 && (strncmp("GET /",buf,5) == 0)) 1786 { 1787 BIO *file; 1788 char *p,*e; 1789 static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 1790 1791 /* skip the '/' */ 1792 p= &(buf[5]); 1793 1794 dot = 1; 1795 for (e=p; *e != '\0'; e++) 1796 { 1797 if (e[0] == ' ') 1798 break; 1799 1800 switch (dot) 1801 { 1802 case 1: 1803 dot = (e[0] == '.') ? 2 : 0; 1804 break; 1805 case 2: 1806 dot = (e[0] == '.') ? 3 : 0; 1807 break; 1808 case 3: 1809 dot = (e[0] == '/') ? -1 : 0; 1810 break; 1811 } 1812 if (dot == 0) 1813 dot = (e[0] == '/') ? 1 : 0; 1814 } 1815 dot = (dot == 3) || (dot == -1); /* filename contains ".." component */ 1816 1817 if (*e == '\0') 1818 { 1819 BIO_puts(io,text); 1820 BIO_printf(io,"'%s' is an invalid file name\r\n",p); 1821 break; 1822 } 1823 *e='\0'; 1824 1825 if (dot) 1826 { 1827 BIO_puts(io,text); 1828 BIO_printf(io,"'%s' contains '..' reference\r\n",p); 1829 break; 1830 } 1831 1832 if (*p == '/') 1833 { 1834 BIO_puts(io,text); 1835 BIO_printf(io,"'%s' is an invalid path\r\n",p); 1836 break; 1837 } 1838 1839 #if 0 1840 /* append if a directory lookup */ 1841 if (e[-1] == '/') 1842 strcat(p,"index.html"); 1843 #endif 1844 1845 /* if a directory, do the index thang */ 1846 if (stat(p,&st_buf) < 0) 1847 { 1848 BIO_puts(io,text); 1849 BIO_printf(io,"Error accessing '%s'\r\n",p); 1850 ERR_print_errors(io); 1851 break; 1852 } 1853 if (S_ISDIR(st_buf.st_mode)) 1854 { 1855 #if 0 /* must check buffer size */ 1856 strcat(p,"/index.html"); 1857 #else 1858 BIO_puts(io,text); 1859 BIO_printf(io,"'%s' is a directory\r\n",p); 1860 break; 1861 #endif 1862 } 1863 1864 if ((file=BIO_new_file(p,"r")) == NULL) 1865 { 1866 BIO_puts(io,text); 1867 BIO_printf(io,"Error opening '%s'\r\n",p); 1868 ERR_print_errors(io); 1869 break; 1870 } 1871 1872 if (!s_quiet) 1873 BIO_printf(bio_err,"FILE:%s\n",p); 1874 1875 if (www == 2) 1876 { 1877 i=strlen(p); 1878 if ( ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) || 1879 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) || 1880 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0))) 1881 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1882 else 1883 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 1884 } 1885 /* send the file */ 1886 total_bytes=0; 1887 for (;;) 1888 { 1889 i=BIO_read(file,buf,bufsize); 1890 if (i <= 0) break; 1891 1892 #ifdef RENEG 1893 total_bytes+=i; 1894 fprintf(stderr,"%d\n",i); 1895 if (total_bytes > 3*1024) 1896 { 1897 total_bytes=0; 1898 fprintf(stderr,"RENEGOTIATE\n"); 1899 SSL_renegotiate(con); 1900 } 1901 #endif 1902 1903 for (j=0; j<i; ) 1904 { 1905 #ifdef RENEG 1906 { static count=0; if (++count == 13) { SSL_renegotiate(con); } } 1907 #endif 1908 k=BIO_write(io,&(buf[j]),i-j); 1909 if (k <= 0) 1910 { 1911 if (!BIO_should_retry(io)) 1912 goto write_error; 1913 else 1914 { 1915 BIO_printf(bio_s_out,"rwrite W BLOCK\n"); 1916 } 1917 } 1918 else 1919 { 1920 j+=k; 1921 } 1922 } 1923 } 1924 write_error: 1925 BIO_free(file); 1926 break; 1927 } 1928 } 1929 1930 for (;;) 1931 { 1932 i=(int)BIO_flush(io); 1933 if (i <= 0) 1934 { 1935 if (!BIO_should_retry(io)) 1936 break; 1937 } 1938 else 1939 break; 1940 } 1941 end: 1942 #if 1 1943 /* make sure we re-use sessions */ 1944 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); 1945 #else 1946 /* This kills performance */ 1947 /* SSL_shutdown(con); A shutdown gets sent in the 1948 * BIO_free_all(io) procession */ 1949 #endif 1950 1951 err: 1952 1953 if (ret >= 0) 1954 BIO_printf(bio_s_out,"ACCEPT\n"); 1955 1956 if (buf != NULL) OPENSSL_free(buf); 1957 if (io != NULL) BIO_free_all(io); 1958 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/ 1959 return(ret); 1960 } 1961 1962 #ifndef OPENSSL_NO_RSA 1963 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength) 1964 { 1965 BIGNUM *bn = NULL; 1966 static RSA *rsa_tmp=NULL; 1967 1968 if (!rsa_tmp && ((bn = BN_new()) == NULL)) 1969 BIO_printf(bio_err,"Allocation error in generating RSA key\n"); 1970 if (!rsa_tmp && bn) 1971 { 1972 if (!s_quiet) 1973 { 1974 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength); 1975 (void)BIO_flush(bio_err); 1976 } 1977 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) || 1978 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL)) 1979 { 1980 if(rsa_tmp) RSA_free(rsa_tmp); 1981 rsa_tmp = NULL; 1982 } 1983 if (!s_quiet) 1984 { 1985 BIO_printf(bio_err,"\n"); 1986 (void)BIO_flush(bio_err); 1987 } 1988 BN_free(bn); 1989 } 1990 return(rsa_tmp); 1991 } 1992 #endif 1993 1994 #define MAX_SESSION_ID_ATTEMPTS 10 1995 static int generate_session_id(const SSL *ssl, unsigned char *id, 1996 unsigned int *id_len) 1997 { 1998 unsigned int count = 0; 1999 do { 2000 RAND_pseudo_bytes(id, *id_len); 2001 /* Prefix the session_id with the required prefix. NB: If our 2002 * prefix is too long, clip it - but there will be worse effects 2003 * anyway, eg. the server could only possibly create 1 session 2004 * ID (ie. the prefix!) so all future session negotiations will 2005 * fail due to conflicts. */ 2006 memcpy(id, session_id_prefix, 2007 (strlen(session_id_prefix) < *id_len) ? 2008 strlen(session_id_prefix) : *id_len); 2009 } 2010 while(SSL_has_matching_session_id(ssl, id, *id_len) && 2011 (++count < MAX_SESSION_ID_ATTEMPTS)); 2012 if(count >= MAX_SESSION_ID_ATTEMPTS) 2013 return 0; 2014 return 1; 2015 } 2016