1 /* $OpenBSD: s_server.c,v 1.33 2020/04/19 17:05:55 jsing Exp $ */ 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) 1998-2006 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 * Copyright 2005 Nokia. All rights reserved. 118 * 119 * The portions of the attached software ("Contribution") is developed by 120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source 121 * license. 122 * 123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of 124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites 125 * support (see RFC 4279) to OpenSSL. 126 * 127 * No patent licenses or other rights except those expressly stated in 128 * the OpenSSL open source license shall be deemed granted or received 129 * expressly, by implication, estoppel, or otherwise. 130 * 131 * No assurances are provided by Nokia that the Contribution does not 132 * infringe the patent or other intellectual property rights of any third 133 * party or that the license provides you with all the necessary rights 134 * to make use of the Contribution. 135 * 136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN 137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA 138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY 139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR 140 * OTHERWISE. 141 */ 142 143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow 144 * deprecated functions for openssl-internal code */ 145 #ifdef OPENSSL_NO_DEPRECATED 146 #undef OPENSSL_NO_DEPRECATED 147 #endif 148 149 #include <sys/types.h> 150 #include <sys/socket.h> 151 152 #include <assert.h> 153 #include <ctype.h> 154 #include <stdio.h> 155 #include <stdlib.h> 156 #include <limits.h> 157 #include <string.h> 158 #include <unistd.h> 159 #include <poll.h> 160 161 #include "apps.h" 162 163 #include <openssl/bn.h> 164 #include <openssl/err.h> 165 #include <openssl/lhash.h> 166 #include <openssl/ocsp.h> 167 #include <openssl/pem.h> 168 #include <openssl/ssl.h> 169 #include <openssl/x509.h> 170 171 #ifndef OPENSSL_NO_DH 172 #include <openssl/dh.h> 173 #endif 174 175 #include <openssl/rsa.h> 176 177 #include "s_apps.h" 178 #include "timeouts.h" 179 180 static int sv_body(char *hostname, int s, unsigned char *context); 181 static int www_body(char *hostname, int s, unsigned char *context); 182 static void close_accept_socket(void); 183 static void sv_usage(void); 184 static int init_ssl_connection(SSL * s); 185 static void print_stats(BIO * bp, SSL_CTX * ctx); 186 static int 187 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 #endif 192 193 static void s_server_init(void); 194 195 /* static int load_CA(SSL_CTX *ctx, char *file);*/ 196 197 #define BUFSIZZ 16*1024 198 static int bufsize = BUFSIZZ; 199 static int accept_socket = -1; 200 201 #define TEST_CERT "server.pem" 202 #define TEST_CERT2 "server2.pem" 203 204 static char *cipher = NULL; 205 static int s_server_verify = SSL_VERIFY_NONE; 206 static int s_server_session_id_context = 1; /* anything will do */ 207 static const char *s_cert_file = TEST_CERT, *s_key_file = NULL; 208 static const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL; 209 static char *s_dcert_file = NULL, *s_dkey_file = NULL; 210 static int s_nbio = 0; 211 static int s_nbio_test = 0; 212 int s_crlf = 0; 213 static SSL_CTX *ctx = NULL; 214 static SSL_CTX *ctx2 = NULL; 215 static int www = 0; 216 217 static BIO *bio_s_out = NULL; 218 static int s_debug = 0; 219 static int s_tlsextdebug = 0; 220 static int s_tlsextstatus = 0; 221 static int cert_status_cb(SSL * s, void *arg); 222 static int s_msg = 0; 223 static int s_quiet = 0; 224 225 static char *keymatexportlabel = NULL; 226 static int keymatexportlen = 20; 227 228 static const char *session_id_prefix = NULL; 229 230 static int enable_timeouts = 0; 231 static long socket_mtu; 232 #ifndef OPENSSL_NO_DTLS1 233 static int cert_chain = 0; 234 #endif 235 236 237 238 239 static void 240 s_server_init(void) 241 { 242 accept_socket = -1; 243 cipher = NULL; 244 s_server_verify = SSL_VERIFY_NONE; 245 s_dcert_file = NULL; 246 s_dkey_file = NULL; 247 s_cert_file = TEST_CERT; 248 s_key_file = NULL; 249 s_cert_file2 = TEST_CERT2; 250 s_key_file2 = NULL; 251 ctx2 = NULL; 252 s_nbio = 0; 253 s_nbio_test = 0; 254 ctx = NULL; 255 www = 0; 256 257 bio_s_out = NULL; 258 s_debug = 0; 259 s_msg = 0; 260 s_quiet = 0; 261 } 262 263 static void 264 sv_usage(void) 265 { 266 BIO_printf(bio_err, "usage: s_server [args ...]\n"); 267 BIO_printf(bio_err, "\n"); 268 BIO_printf(bio_err, " -accept arg - port to accept on (default is %d)\n", PORT); 269 BIO_printf(bio_err, " -context arg - set session ID context\n"); 270 BIO_printf(bio_err, " -verify arg - turn on peer certificate verification\n"); 271 BIO_printf(bio_err, " -Verify arg - turn on peer certificate verification, must have a cert.\n"); 272 BIO_printf(bio_err, " -cert arg - certificate file to use\n"); 273 BIO_printf(bio_err, " (default is %s)\n", TEST_CERT); 274 BIO_printf(bio_err, " -crl_check - check the peer certificate has not been revoked by its CA.\n" \ 275 " The CRL(s) are appended to the certificate file\n"); 276 BIO_printf(bio_err, " -crl_check_all - check the peer certificate has not been revoked by its CA\n" \ 277 " or any other CRL in the CA chain. CRL(s) are appended to the\n" \ 278 " the certificate file.\n"); 279 BIO_printf(bio_err, " -certform arg - certificate format (PEM or DER) PEM default\n"); 280 BIO_printf(bio_err, " -key arg - Private Key file to use, in cert file if\n"); 281 BIO_printf(bio_err, " not specified (default is %s)\n", TEST_CERT); 282 BIO_printf(bio_err, " -keyform arg - key format (PEM or DER) PEM default\n"); 283 BIO_printf(bio_err, " -pass arg - private key file pass phrase source\n"); 284 BIO_printf(bio_err, " -dcert arg - second certificate file to use (usually for DSA)\n"); 285 BIO_printf(bio_err, " -dcertform x - second certificate format (PEM or DER) PEM default\n"); 286 BIO_printf(bio_err, " -dkey arg - second private key file to use (usually for DSA)\n"); 287 BIO_printf(bio_err, " -dkeyform arg - second key format (PEM or DER) PEM default\n"); 288 BIO_printf(bio_err, " -dpass arg - second private key file pass phrase source\n"); 289 BIO_printf(bio_err, " -dhparam arg - DH parameter file to use, in cert file if not specified\n"); 290 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"); 292 BIO_printf(bio_err, " -nbio_test - test with the non-blocking test bio\n"); 293 BIO_printf(bio_err, " -crlf - convert LF from terminal into CRLF\n"); 294 BIO_printf(bio_err, " -debug - Print more output\n"); 295 BIO_printf(bio_err, " -msg - Show protocol messages\n"); 296 BIO_printf(bio_err, " -state - Print the SSL states\n"); 297 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n"); 298 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n"); 299 BIO_printf(bio_err, " -nocert - Don't use any certificates (Anon-DH)\n"); 300 BIO_printf(bio_err, " -cipher arg - play with 'openssl ciphers' to see what goes here\n"); 301 BIO_printf(bio_err, " -serverpref - Use server's cipher preferences\n"); 302 BIO_printf(bio_err, " -quiet - Inhibit printing of session and certificate information\n"); 303 BIO_printf(bio_err, " -tls1_2 - Just talk TLSv1.2\n"); 304 BIO_printf(bio_err, " -tls1_1 - Just talk TLSv1.1\n"); 305 BIO_printf(bio_err, " -tls1 - Just talk TLSv1\n"); 306 BIO_printf(bio_err, " -dtls1 - Just talk DTLSv1\n"); 307 BIO_printf(bio_err, " -timeout - Enable timeouts\n"); 308 BIO_printf(bio_err, " -mtu - Set link layer MTU\n"); 309 BIO_printf(bio_err, " -chain - Read a certificate chain\n"); 310 BIO_printf(bio_err, " -no_ssl2 - Just disable SSLv2\n"); 311 BIO_printf(bio_err, " -no_ssl3 - Just disable SSLv3\n"); 312 BIO_printf(bio_err, " -no_tls1 - Just disable TLSv1\n"); 313 BIO_printf(bio_err, " -no_tls1_1 - Just disable TLSv1.1\n"); 314 BIO_printf(bio_err, " -no_tls1_2 - Just disable TLSv1.2\n"); 315 #ifndef OPENSSL_NO_DH 316 BIO_printf(bio_err, " -no_dhe - Disable ephemeral DH\n"); 317 #endif 318 BIO_printf(bio_err, " -no_ecdhe - Disable ephemeral ECDH\n"); 319 BIO_printf(bio_err, " -bugs - Turn on SSL bug compatibility\n"); 320 BIO_printf(bio_err, " -www - Respond to a 'GET /' with a status page\n"); 321 BIO_printf(bio_err, " -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); 322 BIO_printf(bio_err, " -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); 323 BIO_printf(bio_err, " with the assumption it contains a complete HTTP response.\n"); 324 BIO_printf(bio_err, " -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n"); 325 BIO_printf(bio_err, " -servername host - servername for HostName TLS extension\n"); 326 BIO_printf(bio_err, " -servername_fatal - on mismatch send fatal alert (default warning alert)\n"); 327 BIO_printf(bio_err, " -cert2 arg - certificate file to use for servername\n"); 328 BIO_printf(bio_err, " (default is %s)\n", TEST_CERT2); 329 BIO_printf(bio_err, " -key2 arg - Private Key file to use for servername, in cert file if\n"); 330 BIO_printf(bio_err, " not specified (default is %s)\n", TEST_CERT2); 331 BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n"); 332 BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n"); 333 BIO_printf(bio_err, " -alpn arg - set the advertised protocols for the ALPN extension (comma-separated list)\n"); 334 BIO_printf(bio_err, " -groups arg - specify EC groups (colon-separated list)\n"); 335 #ifndef OPENSSL_NO_SRTP 336 BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 337 #endif 338 BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n"); 339 BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 340 } 341 342 static int local_argc = 0; 343 static char **local_argv; 344 345 346 /* This is a context that we pass to callbacks */ 347 typedef struct tlsextctx_st { 348 char *servername; 349 BIO *biodebug; 350 int extension_error; 351 } tlsextctx; 352 353 354 static int 355 ssl_servername_cb(SSL * s, int *ad, void *arg) 356 { 357 tlsextctx *p = (tlsextctx *) arg; 358 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 359 if (servername && p->biodebug) 360 BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n", servername); 361 362 if (!p->servername) 363 return SSL_TLSEXT_ERR_NOACK; 364 365 if (servername) { 366 if (strcmp(servername, p->servername)) 367 return p->extension_error; 368 if (ctx2) { 369 BIO_printf(p->biodebug, "Switching server context.\n"); 370 SSL_set_SSL_CTX(s, ctx2); 371 } 372 } 373 return SSL_TLSEXT_ERR_OK; 374 } 375 376 /* Structure passed to cert status callback */ 377 378 typedef struct tlsextstatusctx_st { 379 /* Default responder to use */ 380 char *host, *path, *port; 381 int use_ssl; 382 int timeout; 383 BIO *err; 384 int verbose; 385 } tlsextstatusctx; 386 387 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0}; 388 389 /* Certificate Status callback. This is called when a client includes a 390 * certificate status request extension. 391 * 392 * This is a simplified version. It examines certificates each time and 393 * makes one OCSP responder query for each request. 394 * 395 * A full version would store details such as the OCSP certificate IDs and 396 * minimise the number of OCSP responses by caching them until they were 397 * considered "expired". 398 */ 399 400 static int 401 cert_status_cb(SSL * s, void *arg) 402 { 403 tlsextstatusctx *srctx = arg; 404 BIO *err = srctx->err; 405 char *host = NULL, *port = NULL, *path = NULL; 406 int use_ssl; 407 unsigned char *rspder = NULL; 408 int rspderlen; 409 STACK_OF(OPENSSL_STRING) * aia = NULL; 410 X509 *x = NULL; 411 X509_STORE_CTX inctx; 412 X509_OBJECT obj; 413 OCSP_REQUEST *req = NULL; 414 OCSP_RESPONSE *resp = NULL; 415 OCSP_CERTID *id = NULL; 416 STACK_OF(X509_EXTENSION) * exts; 417 int ret = SSL_TLSEXT_ERR_NOACK; 418 int i; 419 420 if (srctx->verbose) 421 BIO_puts(err, "cert_status: callback called\n"); 422 /* Build up OCSP query from server certificate */ 423 x = SSL_get_certificate(s); 424 aia = X509_get1_ocsp(x); 425 if (aia) { 426 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0), 427 &host, &port, &path, &use_ssl)) { 428 BIO_puts(err, "cert_status: can't parse AIA URL\n"); 429 goto err; 430 } 431 if (srctx->verbose) 432 BIO_printf(err, "cert_status: AIA URL: %s\n", 433 sk_OPENSSL_STRING_value(aia, 0)); 434 } else { 435 if (!srctx->host) { 436 BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n"); 437 goto done; 438 } 439 host = srctx->host; 440 path = srctx->path; 441 port = srctx->port; 442 use_ssl = srctx->use_ssl; 443 } 444 445 if (!X509_STORE_CTX_init(&inctx, 446 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), 447 NULL, NULL)) 448 goto err; 449 if (X509_STORE_get_by_subject(&inctx, X509_LU_X509, 450 X509_get_issuer_name(x), &obj) <= 0) { 451 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n"); 452 X509_STORE_CTX_cleanup(&inctx); 453 goto done; 454 } 455 req = OCSP_REQUEST_new(); 456 if (!req) 457 goto err; 458 id = OCSP_cert_to_id(NULL, x, obj.data.x509); 459 X509_free(obj.data.x509); 460 X509_STORE_CTX_cleanup(&inctx); 461 if (!id) 462 goto err; 463 if (!OCSP_request_add0_id(req, id)) 464 goto err; 465 id = NULL; 466 /* Add any extensions to the request */ 467 SSL_get_tlsext_status_exts(s, &exts); 468 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { 469 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); 470 if (!OCSP_REQUEST_add_ext(req, ext, -1)) 471 goto err; 472 } 473 resp = process_responder(err, req, host, path, port, use_ssl, NULL, 474 srctx->timeout); 475 if (!resp) { 476 BIO_puts(err, "cert_status: error querying responder\n"); 477 goto done; 478 } 479 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); 480 if (rspderlen <= 0) 481 goto err; 482 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); 483 if (srctx->verbose) { 484 BIO_puts(err, "cert_status: ocsp response sent:\n"); 485 OCSP_RESPONSE_print(err, resp, 2); 486 } 487 ret = SSL_TLSEXT_ERR_OK; 488 done: 489 if (ret != SSL_TLSEXT_ERR_OK) 490 ERR_print_errors(err); 491 if (aia) { 492 free(host); 493 free(path); 494 free(port); 495 X509_email_free(aia); 496 } 497 if (id) 498 OCSP_CERTID_free(id); 499 if (req) 500 OCSP_REQUEST_free(req); 501 if (resp) 502 OCSP_RESPONSE_free(resp); 503 return ret; 504 err: 505 ret = SSL_TLSEXT_ERR_ALERT_FATAL; 506 goto done; 507 } 508 509 /* This the context that we pass to alpn_cb */ 510 typedef struct tlsextalpnctx_st { 511 unsigned char *data; 512 unsigned short len; 513 } tlsextalpnctx; 514 515 static int 516 alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 517 const unsigned char *in, unsigned int inlen, void *arg) 518 { 519 tlsextalpnctx *alpn_ctx = arg; 520 521 if (!s_quiet) { 522 /* We can assume that in is syntactically valid. */ 523 unsigned i; 524 525 BIO_printf(bio_s_out, 526 "ALPN protocols advertised by the client: "); 527 for (i = 0; i < inlen; ) { 528 if (i) 529 BIO_write(bio_s_out, ", ", 2); 530 BIO_write(bio_s_out, &in[i + 1], in[i]); 531 i += in[i] + 1; 532 } 533 BIO_write(bio_s_out, "\n", 1); 534 } 535 536 if (SSL_select_next_proto((unsigned char**)out, outlen, alpn_ctx->data, 537 alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED) 538 return (SSL_TLSEXT_ERR_NOACK); 539 540 if (!s_quiet) { 541 BIO_printf(bio_s_out, "ALPN protocols selected: "); 542 BIO_write(bio_s_out, *out, *outlen); 543 BIO_write(bio_s_out, "\n", 1); 544 } 545 546 return (SSL_TLSEXT_ERR_OK); 547 } 548 549 #ifndef OPENSSL_NO_SRTP 550 static char *srtp_profiles = NULL; 551 #endif 552 553 int 554 s_server_main(int argc, char *argv[]) 555 { 556 X509_VERIFY_PARAM *vpm = NULL; 557 int badarg = 0; 558 short port = PORT; 559 char *CApath = NULL, *CAfile = NULL; 560 unsigned char *context = NULL; 561 char *dhfile = NULL; 562 char *named_curve = NULL; 563 int badop = 0, bugs = 0; 564 int ret = 1; 565 int off = 0; 566 int no_dhe = 0, no_ecdhe = 0, nocert = 0; 567 int state = 0; 568 const SSL_METHOD *meth = NULL; 569 int socket_type = SOCK_STREAM; 570 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM; 571 char *passarg = NULL, *pass = NULL; 572 char *dpassarg = NULL, *dpass = NULL; 573 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM; 574 X509 *s_cert = NULL, *s_dcert = NULL; 575 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 576 int no_cache = 0; 577 const char *errstr = NULL; 578 EVP_PKEY *s_key2 = NULL; 579 X509 *s_cert2 = NULL; 580 tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING}; 581 const char *alpn_in = NULL; 582 const char *groups_in = NULL; 583 tlsextalpnctx alpn_ctx = { NULL, 0 }; 584 585 if (single_execution) { 586 if (pledge("stdio rpath inet dns tty", NULL) == -1) { 587 perror("pledge"); 588 exit(1); 589 } 590 } 591 592 meth = SSLv23_server_method(); 593 594 local_argc = argc; 595 local_argv = argv; 596 597 s_server_init(); 598 599 verify_depth = 0; 600 s_nbio = 0; 601 s_nbio_test = 0; 602 603 argc--; 604 argv++; 605 606 while (argc >= 1) { 607 if ((strcmp(*argv, "-port") == 0) || 608 (strcmp(*argv, "-accept") == 0)) { 609 if (--argc < 1) 610 goto bad; 611 if (!extract_port(*(++argv), &port)) 612 goto bad; 613 } else if (strcmp(*argv, "-verify") == 0) { 614 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; 615 if (--argc < 1) 616 goto bad; 617 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 618 if (errstr) 619 goto bad; 620 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 621 } else if (strcmp(*argv, "-Verify") == 0) { 622 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | 623 SSL_VERIFY_CLIENT_ONCE; 624 if (--argc < 1) 625 goto bad; 626 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 627 if (errstr) 628 goto bad; 629 BIO_printf(bio_err, "verify depth is %d, must return a certificate\n", verify_depth); 630 } else if (strcmp(*argv, "-context") == 0) { 631 if (--argc < 1) 632 goto bad; 633 context = (unsigned char *) *(++argv); 634 } else if (strcmp(*argv, "-cert") == 0) { 635 if (--argc < 1) 636 goto bad; 637 s_cert_file = *(++argv); 638 } else if (strcmp(*argv, "-certform") == 0) { 639 if (--argc < 1) 640 goto bad; 641 s_cert_format = str2fmt(*(++argv)); 642 } else if (strcmp(*argv, "-key") == 0) { 643 if (--argc < 1) 644 goto bad; 645 s_key_file = *(++argv); 646 } else if (strcmp(*argv, "-keyform") == 0) { 647 if (--argc < 1) 648 goto bad; 649 s_key_format = str2fmt(*(++argv)); 650 } else if (strcmp(*argv, "-pass") == 0) { 651 if (--argc < 1) 652 goto bad; 653 passarg = *(++argv); 654 } else if (strcmp(*argv, "-dhparam") == 0) { 655 if (--argc < 1) 656 goto bad; 657 dhfile = *(++argv); 658 } else if (strcmp(*argv, "-named_curve") == 0) { 659 if (--argc < 1) 660 goto bad; 661 named_curve = *(++argv); 662 } else if (strcmp(*argv, "-dcertform") == 0) { 663 if (--argc < 1) 664 goto bad; 665 s_dcert_format = str2fmt(*(++argv)); 666 } else if (strcmp(*argv, "-dcert") == 0) { 667 if (--argc < 1) 668 goto bad; 669 s_dcert_file = *(++argv); 670 } else if (strcmp(*argv, "-dkeyform") == 0) { 671 if (--argc < 1) 672 goto bad; 673 s_dkey_format = str2fmt(*(++argv)); 674 } else if (strcmp(*argv, "-dpass") == 0) { 675 if (--argc < 1) 676 goto bad; 677 dpassarg = *(++argv); 678 } else if (strcmp(*argv, "-dkey") == 0) { 679 if (--argc < 1) 680 goto bad; 681 s_dkey_file = *(++argv); 682 } else if (strcmp(*argv, "-nocert") == 0) { 683 nocert = 1; 684 } else if (strcmp(*argv, "-CApath") == 0) { 685 if (--argc < 1) 686 goto bad; 687 CApath = *(++argv); 688 } else if (strcmp(*argv, "-no_cache") == 0) 689 no_cache = 1; 690 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 691 if (badarg) 692 goto bad; 693 continue; 694 } else if (strcmp(*argv, "-verify_return_error") == 0) 695 verify_return_error = 1; 696 else if (strcmp(*argv, "-serverpref") == 0) { 697 off |= SSL_OP_CIPHER_SERVER_PREFERENCE; 698 } else if (strcmp(*argv, "-legacy_renegotiation") == 0) 699 ; /* no-op */ 700 else if (strcmp(*argv, "-cipher") == 0) { 701 if (--argc < 1) 702 goto bad; 703 cipher = *(++argv); 704 } else if (strcmp(*argv, "-CAfile") == 0) { 705 if (--argc < 1) 706 goto bad; 707 CAfile = *(++argv); 708 } 709 else if (strcmp(*argv, "-nbio") == 0) { 710 s_nbio = 1; 711 } 712 else if (strcmp(*argv, "-nbio_test") == 0) { 713 s_nbio = 1; 714 s_nbio_test = 1; 715 } else if (strcmp(*argv, "-debug") == 0) { 716 s_debug = 1; 717 } 718 else if (strcmp(*argv, "-tlsextdebug") == 0) 719 s_tlsextdebug = 1; 720 else if (strcmp(*argv, "-status") == 0) 721 s_tlsextstatus = 1; 722 else if (strcmp(*argv, "-status_verbose") == 0) { 723 s_tlsextstatus = 1; 724 tlscstatp.verbose = 1; 725 } else if (!strcmp(*argv, "-status_timeout")) { 726 s_tlsextstatus = 1; 727 if (--argc < 1) 728 goto bad; 729 tlscstatp.timeout = strtonum(*(++argv), 0, INT_MAX, &errstr); 730 if (errstr) 731 goto bad; 732 } else if (!strcmp(*argv, "-status_url")) { 733 s_tlsextstatus = 1; 734 if (--argc < 1) 735 goto bad; 736 if (!OCSP_parse_url(*(++argv), 737 &tlscstatp.host, 738 &tlscstatp.port, 739 &tlscstatp.path, 740 &tlscstatp.use_ssl)) { 741 BIO_printf(bio_err, "Error parsing URL\n"); 742 goto bad; 743 } 744 } 745 else if (strcmp(*argv, "-msg") == 0) { 746 s_msg = 1; 747 } else if (strcmp(*argv, "-state") == 0) { 748 state = 1; 749 } else if (strcmp(*argv, "-crlf") == 0) { 750 s_crlf = 1; 751 } else if (strcmp(*argv, "-quiet") == 0) { 752 s_quiet = 1; 753 } else if (strcmp(*argv, "-bugs") == 0) { 754 bugs = 1; 755 } else if (strcmp(*argv, "-no_tmp_rsa") == 0) { 756 /* No-op. */ 757 } else if (strcmp(*argv, "-no_dhe") == 0) { 758 no_dhe = 1; 759 } else if (strcmp(*argv, "-no_ecdhe") == 0) { 760 no_ecdhe = 1; 761 } else if (strcmp(*argv, "-www") == 0) { 762 www = 1; 763 } else if (strcmp(*argv, "-WWW") == 0) { 764 www = 2; 765 } else if (strcmp(*argv, "-HTTP") == 0) { 766 www = 3; 767 } else if (strcmp(*argv, "-no_ssl2") == 0) { 768 off |= SSL_OP_NO_SSLv2; 769 } else if (strcmp(*argv, "-no_ssl3") == 0) { 770 off |= SSL_OP_NO_SSLv3; 771 } else if (strcmp(*argv, "-no_tls1") == 0) { 772 off |= SSL_OP_NO_TLSv1; 773 } else if (strcmp(*argv, "-no_tls1_1") == 0) { 774 off |= SSL_OP_NO_TLSv1_1; 775 } else if (strcmp(*argv, "-no_tls1_2") == 0) { 776 off |= SSL_OP_NO_TLSv1_2; 777 } else if (strcmp(*argv, "-no_comp") == 0) { 778 off |= SSL_OP_NO_COMPRESSION; 779 } else if (strcmp(*argv, "-no_ticket") == 0) { 780 off |= SSL_OP_NO_TICKET; 781 } else if (strcmp(*argv, "-tls1") == 0) { 782 meth = TLSv1_server_method(); 783 } else if (strcmp(*argv, "-tls1_1") == 0) { 784 meth = TLSv1_1_server_method(); 785 } else if (strcmp(*argv, "-tls1_2") == 0) { 786 meth = TLSv1_2_server_method(); 787 } 788 #ifndef OPENSSL_NO_DTLS1 789 else if (strcmp(*argv, "-dtls1") == 0) { 790 meth = DTLSv1_server_method(); 791 socket_type = SOCK_DGRAM; 792 } else if (strcmp(*argv, "-timeout") == 0) 793 enable_timeouts = 1; 794 else if (strcmp(*argv, "-mtu") == 0) { 795 if (--argc < 1) 796 goto bad; 797 socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr); 798 if (errstr) 799 goto bad; 800 } else if (strcmp(*argv, "-chain") == 0) 801 cert_chain = 1; 802 #endif 803 else if (strcmp(*argv, "-id_prefix") == 0) { 804 if (--argc < 1) 805 goto bad; 806 session_id_prefix = *(++argv); 807 } 808 else if (strcmp(*argv, "-servername") == 0) { 809 if (--argc < 1) 810 goto bad; 811 tlsextcbp.servername = *(++argv); 812 } else if (strcmp(*argv, "-servername_fatal") == 0) { 813 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; 814 } else if (strcmp(*argv, "-cert2") == 0) { 815 if (--argc < 1) 816 goto bad; 817 s_cert_file2 = *(++argv); 818 } else if (strcmp(*argv, "-key2") == 0) { 819 if (--argc < 1) 820 goto bad; 821 s_key_file2 = *(++argv); 822 } else if (strcmp(*argv, "-nextprotoneg") == 0) { 823 /* Ignored. */ 824 if (--argc < 1) 825 goto bad; 826 ++argv; 827 } else if (strcmp(*argv,"-alpn") == 0) { 828 if (--argc < 1) 829 goto bad; 830 alpn_in = *(++argv); 831 } else if (strcmp(*argv, "-groups") == 0) { 832 if (--argc < 1) 833 goto bad; 834 groups_in = *(++argv); 835 } 836 #ifndef OPENSSL_NO_SRTP 837 else if (strcmp(*argv, "-use_srtp") == 0) { 838 if (--argc < 1) 839 goto bad; 840 srtp_profiles = *(++argv); 841 } 842 #endif 843 else if (strcmp(*argv, "-keymatexport") == 0) { 844 if (--argc < 1) 845 goto bad; 846 keymatexportlabel = *(++argv); 847 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 848 if (--argc < 1) 849 goto bad; 850 keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr); 851 if (errstr) 852 goto bad; 853 } else { 854 BIO_printf(bio_err, "unknown option %s\n", *argv); 855 badop = 1; 856 break; 857 } 858 argc--; 859 argv++; 860 } 861 if (badop) { 862 bad: 863 if (errstr) 864 BIO_printf(bio_err, "invalid argument %s: %s\n", 865 *argv, errstr); 866 else 867 sv_usage(); 868 goto end; 869 } 870 871 if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) { 872 BIO_printf(bio_err, "Error getting password\n"); 873 goto end; 874 } 875 if (s_key_file == NULL) 876 s_key_file = s_cert_file; 877 if (s_key_file2 == NULL) 878 s_key_file2 = s_cert_file2; 879 880 if (nocert == 0) { 881 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, 882 "server certificate private key file"); 883 if (!s_key) { 884 ERR_print_errors(bio_err); 885 goto end; 886 } 887 s_cert = load_cert(bio_err, s_cert_file, s_cert_format, 888 NULL, "server certificate file"); 889 890 if (!s_cert) { 891 ERR_print_errors(bio_err); 892 goto end; 893 } 894 if (tlsextcbp.servername) { 895 s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, 896 "second server certificate private key file"); 897 if (!s_key2) { 898 ERR_print_errors(bio_err); 899 goto end; 900 } 901 s_cert2 = load_cert(bio_err, s_cert_file2, s_cert_format, 902 NULL, "second server certificate file"); 903 904 if (!s_cert2) { 905 ERR_print_errors(bio_err); 906 goto end; 907 } 908 } 909 } 910 alpn_ctx.data = NULL; 911 if (alpn_in) { 912 unsigned short len; 913 alpn_ctx.data = next_protos_parse(&len, alpn_in); 914 if (alpn_ctx.data == NULL) 915 goto end; 916 alpn_ctx.len = len; 917 } 918 919 if (s_dcert_file) { 920 921 if (s_dkey_file == NULL) 922 s_dkey_file = s_dcert_file; 923 924 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format, 925 0, dpass, "second certificate private key file"); 926 if (!s_dkey) { 927 ERR_print_errors(bio_err); 928 goto end; 929 } 930 s_dcert = load_cert(bio_err, s_dcert_file, s_dcert_format, 931 NULL, "second server certificate file"); 932 933 if (!s_dcert) { 934 ERR_print_errors(bio_err); 935 goto end; 936 } 937 } 938 if (bio_s_out == NULL) { 939 if (s_quiet && !s_debug && !s_msg) { 940 bio_s_out = BIO_new(BIO_s_null()); 941 } else { 942 if (bio_s_out == NULL) 943 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE); 944 } 945 } 946 if (nocert) { 947 s_cert_file = NULL; 948 s_key_file = NULL; 949 s_dcert_file = NULL; 950 s_dkey_file = NULL; 951 s_cert_file2 = NULL; 952 s_key_file2 = NULL; 953 } 954 ctx = SSL_CTX_new(meth); 955 if (ctx == NULL) { 956 ERR_print_errors(bio_err); 957 goto end; 958 } 959 if (session_id_prefix) { 960 if (strlen(session_id_prefix) >= 32) 961 BIO_printf(bio_err, 962 "warning: id_prefix is too long, only one new session will be possible\n"); 963 else if (strlen(session_id_prefix) >= 16) 964 BIO_printf(bio_err, 965 "warning: id_prefix is too long if you use SSLv2\n"); 966 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 967 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 968 ERR_print_errors(bio_err); 969 goto end; 970 } 971 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 972 } 973 SSL_CTX_set_quiet_shutdown(ctx, 1); 974 if (bugs) 975 SSL_CTX_set_options(ctx, SSL_OP_ALL); 976 SSL_CTX_set_options(ctx, off); 977 /* 978 * DTLS: partial reads end up discarding unread UDP bytes :-( Setting 979 * read ahead solves this problem. 980 */ 981 if (socket_type == SOCK_DGRAM) 982 SSL_CTX_set_read_ahead(ctx, 1); 983 984 if (state) 985 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 986 if (no_cache) 987 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 988 else 989 SSL_CTX_sess_set_cache_size(ctx, 128); 990 991 #ifndef OPENSSL_NO_SRTP 992 if (srtp_profiles != NULL) 993 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 994 #endif 995 996 997 if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) || 998 (!SSL_CTX_set_default_verify_paths(ctx))) { 999 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */ 1000 ERR_print_errors(bio_err); 1001 /* goto end; */ 1002 } 1003 if (vpm) 1004 SSL_CTX_set1_param(ctx, vpm); 1005 1006 if (s_cert2) { 1007 ctx2 = SSL_CTX_new(meth); 1008 if (ctx2 == NULL) { 1009 ERR_print_errors(bio_err); 1010 goto end; 1011 } 1012 } 1013 if (ctx2) { 1014 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 1015 1016 if (session_id_prefix) { 1017 if (strlen(session_id_prefix) >= 32) 1018 BIO_printf(bio_err, 1019 "warning: id_prefix is too long, only one new session will be possible\n"); 1020 else if (strlen(session_id_prefix) >= 16) 1021 BIO_printf(bio_err, 1022 "warning: id_prefix is too long if you use SSLv2\n"); 1023 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { 1024 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1025 ERR_print_errors(bio_err); 1026 goto end; 1027 } 1028 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1029 } 1030 SSL_CTX_set_quiet_shutdown(ctx2, 1); 1031 if (bugs) 1032 SSL_CTX_set_options(ctx2, SSL_OP_ALL); 1033 SSL_CTX_set_options(ctx2, off); 1034 /* 1035 * DTLS: partial reads end up discarding unread UDP bytes :-( 1036 * Setting read ahead solves this problem. 1037 */ 1038 if (socket_type == SOCK_DGRAM) 1039 SSL_CTX_set_read_ahead(ctx2, 1); 1040 1041 if (state) 1042 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 1043 1044 if (no_cache) 1045 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 1046 else 1047 SSL_CTX_sess_set_cache_size(ctx2, 128); 1048 1049 if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) || 1050 (!SSL_CTX_set_default_verify_paths(ctx2))) { 1051 ERR_print_errors(bio_err); 1052 } 1053 if (vpm) 1054 SSL_CTX_set1_param(ctx2, vpm); 1055 } 1056 if (alpn_ctx.data) 1057 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 1058 1059 if (groups_in != NULL) { 1060 if (SSL_CTX_set1_groups_list(ctx, groups_in) != 1) { 1061 BIO_printf(bio_err, "Failed to set groups '%s'\n", 1062 groups_in); 1063 goto end; 1064 } 1065 } 1066 1067 #ifndef OPENSSL_NO_DH 1068 if (!no_dhe) { 1069 DH *dh = NULL; 1070 1071 if (dhfile) 1072 dh = load_dh_param(dhfile); 1073 else if (s_cert_file) 1074 dh = load_dh_param(s_cert_file); 1075 1076 if (dh != NULL) 1077 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1078 else 1079 BIO_printf(bio_s_out, "Using auto DH parameters\n"); 1080 (void) BIO_flush(bio_s_out); 1081 1082 if (dh == NULL) 1083 SSL_CTX_set_dh_auto(ctx, 1); 1084 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { 1085 BIO_printf(bio_err, 1086 "Error setting temp DH parameters\n"); 1087 ERR_print_errors(bio_err); 1088 DH_free(dh); 1089 goto end; 1090 } 1091 1092 if (ctx2) { 1093 if (!dhfile) { 1094 DH *dh2 = NULL; 1095 1096 if (s_cert_file2 != NULL) 1097 dh2 = load_dh_param(s_cert_file2); 1098 if (dh2 != NULL) { 1099 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1100 (void) BIO_flush(bio_s_out); 1101 1102 DH_free(dh); 1103 dh = dh2; 1104 } 1105 } 1106 if (dh == NULL) 1107 SSL_CTX_set_dh_auto(ctx2, 1); 1108 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { 1109 BIO_printf(bio_err, 1110 "Error setting temp DH parameters\n"); 1111 ERR_print_errors(bio_err); 1112 DH_free(dh); 1113 goto end; 1114 } 1115 } 1116 DH_free(dh); 1117 } 1118 #endif 1119 1120 if (!no_ecdhe && named_curve != NULL) { 1121 EC_KEY *ecdh = NULL; 1122 int nid; 1123 1124 if ((nid = OBJ_sn2nid(named_curve)) == 0) { 1125 BIO_printf(bio_err, "unknown curve name (%s)\n", 1126 named_curve); 1127 goto end; 1128 } 1129 if ((ecdh = EC_KEY_new_by_curve_name(nid)) == NULL) { 1130 BIO_printf(bio_err, "unable to create curve (%s)\n", 1131 named_curve); 1132 goto end; 1133 } 1134 BIO_printf(bio_s_out, "Setting temp ECDH parameters\n"); 1135 (void) BIO_flush(bio_s_out); 1136 1137 SSL_CTX_set_tmp_ecdh(ctx, ecdh); 1138 if (ctx2) 1139 SSL_CTX_set_tmp_ecdh(ctx2, ecdh); 1140 EC_KEY_free(ecdh); 1141 } 1142 1143 if (!set_cert_key_stuff(ctx, s_cert, s_key)) 1144 goto end; 1145 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2)) 1146 goto end; 1147 if (s_dcert != NULL) { 1148 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey)) 1149 goto end; 1150 } 1151 1152 if (cipher != NULL) { 1153 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 1154 BIO_printf(bio_err, "error setting cipher list\n"); 1155 ERR_print_errors(bio_err); 1156 goto end; 1157 } 1158 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2, cipher)) { 1159 BIO_printf(bio_err, "error setting cipher list\n"); 1160 ERR_print_errors(bio_err); 1161 goto end; 1162 } 1163 } 1164 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); 1165 SSL_CTX_set_session_id_context(ctx, (void *) &s_server_session_id_context, 1166 sizeof s_server_session_id_context); 1167 1168 /* Set DTLS cookie generation and verification callbacks */ 1169 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 1170 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 1171 1172 if (ctx2) { 1173 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); 1174 SSL_CTX_set_session_id_context(ctx2, (void *) &s_server_session_id_context, 1175 sizeof s_server_session_id_context); 1176 1177 tlsextcbp.biodebug = bio_s_out; 1178 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 1179 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); 1180 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1181 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1182 } 1183 1184 if (CAfile != NULL) { 1185 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); 1186 if (ctx2) 1187 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); 1188 } 1189 BIO_printf(bio_s_out, "ACCEPT\n"); 1190 (void) BIO_flush(bio_s_out); 1191 if (www) 1192 do_server(port, socket_type, &accept_socket, www_body, context); 1193 else 1194 do_server(port, socket_type, &accept_socket, sv_body, context); 1195 print_stats(bio_s_out, ctx); 1196 ret = 0; 1197 end: 1198 SSL_CTX_free(ctx); 1199 X509_free(s_cert); 1200 X509_free(s_dcert); 1201 EVP_PKEY_free(s_key); 1202 EVP_PKEY_free(s_dkey); 1203 free(pass); 1204 free(dpass); 1205 X509_VERIFY_PARAM_free(vpm); 1206 free(tlscstatp.host); 1207 free(tlscstatp.port); 1208 free(tlscstatp.path); 1209 SSL_CTX_free(ctx2); 1210 X509_free(s_cert2); 1211 EVP_PKEY_free(s_key2); 1212 free(alpn_ctx.data); 1213 if (bio_s_out != NULL) { 1214 BIO_free(bio_s_out); 1215 bio_s_out = NULL; 1216 } 1217 1218 return (ret); 1219 } 1220 1221 static void 1222 print_stats(BIO * bio, SSL_CTX * ssl_ctx) 1223 { 1224 BIO_printf(bio, "%4ld items in the session cache\n", 1225 SSL_CTX_sess_number(ssl_ctx)); 1226 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 1227 SSL_CTX_sess_connect(ssl_ctx)); 1228 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 1229 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 1230 BIO_printf(bio, "%4ld client connects that finished\n", 1231 SSL_CTX_sess_connect_good(ssl_ctx)); 1232 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 1233 SSL_CTX_sess_accept(ssl_ctx)); 1234 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 1235 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 1236 BIO_printf(bio, "%4ld server accepts that finished\n", 1237 SSL_CTX_sess_accept_good(ssl_ctx)); 1238 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); 1239 BIO_printf(bio, "%4ld session cache misses\n", SSL_CTX_sess_misses(ssl_ctx)); 1240 BIO_printf(bio, "%4ld session cache timeouts\n", SSL_CTX_sess_timeouts(ssl_ctx)); 1241 BIO_printf(bio, "%4ld callback cache hits\n", SSL_CTX_sess_cb_hits(ssl_ctx)); 1242 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 1243 SSL_CTX_sess_cache_full(ssl_ctx), 1244 SSL_CTX_sess_get_cache_size(ssl_ctx)); 1245 } 1246 1247 static int 1248 sv_body(char *hostname, int s, unsigned char *context) 1249 { 1250 char *buf = NULL; 1251 int ret = 1; 1252 int k, i; 1253 unsigned long l; 1254 SSL *con = NULL; 1255 BIO *sbio; 1256 struct timeval timeout; 1257 1258 if ((buf = malloc(bufsize)) == NULL) { 1259 BIO_printf(bio_err, "out of memory\n"); 1260 goto err; 1261 } 1262 if (s_nbio) { 1263 if (!s_quiet) 1264 BIO_printf(bio_err, "turning on non blocking io\n"); 1265 if (!BIO_socket_nbio(s, 1)) 1266 ERR_print_errors(bio_err); 1267 } 1268 1269 if (con == NULL) { 1270 con = SSL_new(ctx); 1271 if (s_tlsextdebug) { 1272 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1273 SSL_set_tlsext_debug_arg(con, bio_s_out); 1274 } 1275 if (s_tlsextstatus) { 1276 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 1277 tlscstatp.err = bio_err; 1278 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); 1279 } 1280 if (context) 1281 SSL_set_session_id_context(con, context, 1282 strlen((char *) context)); 1283 } 1284 SSL_clear(con); 1285 1286 if (SSL_version(con) == DTLS1_VERSION) { 1287 1288 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1289 1290 if (enable_timeouts) { 1291 timeout.tv_sec = 0; 1292 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1293 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1294 1295 timeout.tv_sec = 0; 1296 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1297 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1298 } 1299 if (socket_mtu > 28) { 1300 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1301 SSL_set_mtu(con, socket_mtu - 28); 1302 } else 1303 /* want to do MTU discovery */ 1304 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1305 1306 /* turn on cookie exchange */ 1307 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 1308 } else 1309 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1310 1311 if (s_nbio_test) { 1312 BIO *test; 1313 1314 test = BIO_new(BIO_f_nbio_test()); 1315 sbio = BIO_push(test, sbio); 1316 } 1317 1318 SSL_set_bio(con, sbio, sbio); 1319 SSL_set_accept_state(con); 1320 /* SSL_set_fd(con,s); */ 1321 1322 if (s_debug) { 1323 SSL_set_debug(con, 1); 1324 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1325 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1326 } 1327 if (s_msg) { 1328 SSL_set_msg_callback(con, msg_cb); 1329 SSL_set_msg_callback_arg(con, bio_s_out); 1330 } 1331 if (s_tlsextdebug) { 1332 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1333 SSL_set_tlsext_debug_arg(con, bio_s_out); 1334 } 1335 1336 for (;;) { 1337 int read_from_terminal; 1338 int read_from_sslcon; 1339 struct pollfd pfd[2]; 1340 int ptimeout; 1341 1342 read_from_terminal = 0; 1343 read_from_sslcon = SSL_pending(con); 1344 1345 if (!read_from_sslcon) { 1346 pfd[0].fd = fileno(stdin); 1347 pfd[0].events = POLLIN; 1348 pfd[1].fd = s; 1349 pfd[1].events = POLLIN; 1350 1351 if ((SSL_version(con) == DTLS1_VERSION) && 1352 DTLSv1_get_timeout(con, &timeout)) 1353 ptimeout = timeout.tv_sec * 1000 + 1354 timeout.tv_usec / 1000; 1355 else 1356 ptimeout = -1; 1357 1358 i = poll(pfd, 2, ptimeout); 1359 1360 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) { 1361 BIO_printf(bio_err, "TIMEOUT occured\n"); 1362 } 1363 if (i <= 0) 1364 continue; 1365 if (pfd[0].revents) { 1366 if ((pfd[0].revents & (POLLERR|POLLNVAL))) 1367 continue; 1368 read_from_terminal = 1; 1369 } 1370 if (pfd[1].revents) { 1371 if ((pfd[1].revents & (POLLERR|POLLNVAL))) 1372 continue; 1373 read_from_sslcon = 1; 1374 } 1375 } 1376 if (read_from_terminal) { 1377 if (s_crlf) { 1378 int j, lf_num; 1379 1380 i = read(fileno(stdin), buf, bufsize / 2); 1381 lf_num = 0; 1382 /* both loops are skipped when i <= 0 */ 1383 for (j = 0; j < i; j++) 1384 if (buf[j] == '\n') 1385 lf_num++; 1386 for (j = i - 1; j >= 0; j--) { 1387 buf[j + lf_num] = buf[j]; 1388 if (buf[j] == '\n') { 1389 lf_num--; 1390 i++; 1391 buf[j + lf_num] = '\r'; 1392 } 1393 } 1394 assert(lf_num == 0); 1395 } else 1396 i = read(fileno(stdin), buf, bufsize); 1397 if (!s_quiet) { 1398 if ((i <= 0) || (buf[0] == 'Q')) { 1399 BIO_printf(bio_s_out, "DONE\n"); 1400 shutdown(s, SHUT_RD); 1401 close(s); 1402 close_accept_socket(); 1403 ret = -11; 1404 goto err; 1405 } 1406 if ((i <= 0) || (buf[0] == 'q')) { 1407 BIO_printf(bio_s_out, "DONE\n"); 1408 if (SSL_version(con) != DTLS1_VERSION) { 1409 shutdown(s, SHUT_RD); 1410 close(s); 1411 } 1412 /* 1413 * close_accept_socket(); ret= -11; 1414 */ 1415 goto err; 1416 } 1417 if ((buf[0] == 'r') && 1418 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1419 SSL_renegotiate(con); 1420 i = SSL_do_handshake(con); 1421 printf("SSL_do_handshake -> %d\n", i); 1422 i = 0; /* 13; */ 1423 continue; 1424 /* 1425 * RE-NEGOTIATE\n"); 1426 */ 1427 } 1428 if ((buf[0] == 'R') && 1429 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1430 SSL_set_verify(con, 1431 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, NULL); 1432 SSL_renegotiate(con); 1433 i = SSL_do_handshake(con); 1434 printf("SSL_do_handshake -> %d\n", i); 1435 i = 0; /* 13; */ 1436 continue; 1437 /* 1438 * RE-NEGOTIATE asking for client 1439 * cert\n"); 1440 */ 1441 } 1442 if (buf[0] == 'P') { 1443 static const char *str = "Lets print some clear text\n"; 1444 BIO_write(SSL_get_wbio(con), str, strlen(str)); 1445 } 1446 if (buf[0] == 'S') { 1447 print_stats(bio_s_out, SSL_get_SSL_CTX(con)); 1448 } 1449 } 1450 l = k = 0; 1451 for (;;) { 1452 /* should do a select for the write */ 1453 #ifdef RENEG 1454 { 1455 static count = 0; 1456 if (++count == 100) { 1457 count = 0; 1458 SSL_renegotiate(con); 1459 } 1460 } 1461 #endif 1462 k = SSL_write(con, &(buf[l]), (unsigned int) i); 1463 switch (SSL_get_error(con, k)) { 1464 case SSL_ERROR_NONE: 1465 break; 1466 case SSL_ERROR_WANT_WRITE: 1467 case SSL_ERROR_WANT_READ: 1468 case SSL_ERROR_WANT_X509_LOOKUP: 1469 BIO_printf(bio_s_out, "Write BLOCK\n"); 1470 break; 1471 case SSL_ERROR_SYSCALL: 1472 case SSL_ERROR_SSL: 1473 BIO_printf(bio_s_out, "ERROR\n"); 1474 ERR_print_errors(bio_err); 1475 ret = 1; 1476 goto err; 1477 /* break; */ 1478 case SSL_ERROR_ZERO_RETURN: 1479 BIO_printf(bio_s_out, "DONE\n"); 1480 ret = 1; 1481 goto err; 1482 } 1483 l += k; 1484 i -= k; 1485 if (i <= 0) 1486 break; 1487 } 1488 } 1489 if (read_from_sslcon) { 1490 if (!SSL_is_init_finished(con)) { 1491 i = init_ssl_connection(con); 1492 1493 if (i < 0) { 1494 ret = 0; 1495 goto err; 1496 } else if (i == 0) { 1497 ret = 1; 1498 goto err; 1499 } 1500 } else { 1501 again: 1502 i = SSL_read(con, (char *) buf, bufsize); 1503 switch (SSL_get_error(con, i)) { 1504 case SSL_ERROR_NONE: { 1505 int len, n; 1506 for (len = 0; len < i;) { 1507 do { 1508 n = write(fileno(stdout), buf + len, i - len); 1509 } while (n == -1 && errno == EINTR); 1510 1511 if (n == -1) { 1512 BIO_printf(bio_s_out, "ERROR\n"); 1513 goto err; 1514 } 1515 len += n; 1516 } 1517 } 1518 if (SSL_pending(con)) 1519 goto again; 1520 break; 1521 case SSL_ERROR_WANT_WRITE: 1522 case SSL_ERROR_WANT_READ: 1523 BIO_printf(bio_s_out, "Read BLOCK\n"); 1524 break; 1525 case SSL_ERROR_SYSCALL: 1526 case SSL_ERROR_SSL: 1527 BIO_printf(bio_s_out, "ERROR\n"); 1528 ERR_print_errors(bio_err); 1529 ret = 1; 1530 goto err; 1531 case SSL_ERROR_ZERO_RETURN: 1532 BIO_printf(bio_s_out, "DONE\n"); 1533 ret = 1; 1534 goto err; 1535 } 1536 } 1537 } 1538 } 1539 err: 1540 if (con != NULL) { 1541 BIO_printf(bio_s_out, "shutting down SSL\n"); 1542 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 1543 SSL_free(con); 1544 } 1545 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 1546 freezero(buf, bufsize); 1547 if (ret >= 0) 1548 BIO_printf(bio_s_out, "ACCEPT\n"); 1549 return (ret); 1550 } 1551 1552 static void 1553 close_accept_socket(void) 1554 { 1555 BIO_printf(bio_err, "shutdown accept socket\n"); 1556 if (accept_socket >= 0) { 1557 shutdown(accept_socket, SHUT_RDWR); 1558 close(accept_socket); 1559 } 1560 } 1561 1562 static int 1563 init_ssl_connection(SSL * con) 1564 { 1565 int i; 1566 const char *str; 1567 X509 *peer; 1568 long verify_error; 1569 char buf[BUFSIZ]; 1570 unsigned char *exportedkeymat; 1571 1572 i = SSL_accept(con); 1573 if (i <= 0) { 1574 if (BIO_sock_should_retry(i)) { 1575 BIO_printf(bio_s_out, "DELAY\n"); 1576 return (1); 1577 } 1578 BIO_printf(bio_err, "ERROR\n"); 1579 verify_error = SSL_get_verify_result(con); 1580 if (verify_error != X509_V_OK) { 1581 BIO_printf(bio_err, "verify error:%s\n", 1582 X509_verify_cert_error_string(verify_error)); 1583 } else 1584 ERR_print_errors(bio_err); 1585 return (0); 1586 } 1587 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 1588 1589 peer = SSL_get_peer_certificate(con); 1590 if (peer != NULL) { 1591 BIO_printf(bio_s_out, "Client certificate\n"); 1592 PEM_write_bio_X509(bio_s_out, peer); 1593 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 1594 BIO_printf(bio_s_out, "subject=%s\n", buf); 1595 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 1596 BIO_printf(bio_s_out, "issuer=%s\n", buf); 1597 X509_free(peer); 1598 } 1599 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL) 1600 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 1601 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 1602 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 1603 1604 #ifndef OPENSSL_NO_SRTP 1605 { 1606 SRTP_PROTECTION_PROFILE *srtp_profile 1607 = SSL_get_selected_srtp_profile(con); 1608 1609 if (srtp_profile) 1610 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", 1611 srtp_profile->name); 1612 } 1613 #endif 1614 if (SSL_cache_hit(con)) 1615 BIO_printf(bio_s_out, "Reused session-id\n"); 1616 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", 1617 SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); 1618 if (keymatexportlabel != NULL) { 1619 BIO_printf(bio_s_out, "Keying material exporter:\n"); 1620 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); 1621 BIO_printf(bio_s_out, " Length: %i bytes\n", 1622 keymatexportlen); 1623 exportedkeymat = malloc(keymatexportlen); 1624 if (exportedkeymat != NULL) { 1625 if (!SSL_export_keying_material(con, exportedkeymat, 1626 keymatexportlen, 1627 keymatexportlabel, 1628 strlen(keymatexportlabel), 1629 NULL, 0, 0)) { 1630 BIO_printf(bio_s_out, " Error\n"); 1631 } else { 1632 BIO_printf(bio_s_out, " Keying material: "); 1633 for (i = 0; i < keymatexportlen; i++) 1634 BIO_printf(bio_s_out, "%02X", 1635 exportedkeymat[i]); 1636 BIO_printf(bio_s_out, "\n"); 1637 } 1638 free(exportedkeymat); 1639 } 1640 } 1641 return (1); 1642 } 1643 1644 #ifndef OPENSSL_NO_DH 1645 static DH * 1646 load_dh_param(const char *dhfile) 1647 { 1648 DH *ret = NULL; 1649 BIO *bio; 1650 1651 if ((bio = BIO_new_file(dhfile, "r")) == NULL) 1652 goto err; 1653 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); 1654 err: 1655 BIO_free(bio); 1656 return (ret); 1657 } 1658 #endif 1659 1660 static int 1661 www_body(char *hostname, int s, unsigned char *context) 1662 { 1663 char *buf = NULL; 1664 int ret = 1; 1665 int i, j, k, dot; 1666 SSL *con; 1667 const SSL_CIPHER *c; 1668 BIO *io, *ssl_bio, *sbio; 1669 1670 buf = malloc(bufsize); 1671 if (buf == NULL) 1672 return (0); 1673 io = BIO_new(BIO_f_buffer()); 1674 ssl_bio = BIO_new(BIO_f_ssl()); 1675 if ((io == NULL) || (ssl_bio == NULL)) 1676 goto err; 1677 1678 if (s_nbio) { 1679 if (!s_quiet) 1680 BIO_printf(bio_err, "turning on non blocking io\n"); 1681 if (!BIO_socket_nbio(s, 1)) 1682 ERR_print_errors(bio_err); 1683 } 1684 1685 /* lets make the output buffer a reasonable size */ 1686 if (!BIO_set_write_buffer_size(io, bufsize)) 1687 goto err; 1688 1689 if ((con = SSL_new(ctx)) == NULL) 1690 goto err; 1691 if (s_tlsextdebug) { 1692 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1693 SSL_set_tlsext_debug_arg(con, bio_s_out); 1694 } 1695 if (context) 1696 SSL_set_session_id_context(con, context, 1697 strlen((char *) context)); 1698 1699 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1700 if (s_nbio_test) { 1701 BIO *test; 1702 1703 test = BIO_new(BIO_f_nbio_test()); 1704 sbio = BIO_push(test, sbio); 1705 } 1706 SSL_set_bio(con, sbio, sbio); 1707 SSL_set_accept_state(con); 1708 1709 /* SSL_set_fd(con,s); */ 1710 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 1711 BIO_push(io, ssl_bio); 1712 1713 if (s_debug) { 1714 SSL_set_debug(con, 1); 1715 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1716 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1717 } 1718 if (s_msg) { 1719 SSL_set_msg_callback(con, msg_cb); 1720 SSL_set_msg_callback_arg(con, bio_s_out); 1721 } 1722 for (;;) { 1723 i = BIO_gets(io, buf, bufsize - 1); 1724 if (i < 0) { /* error */ 1725 if (!BIO_should_retry(io)) { 1726 if (!s_quiet) 1727 ERR_print_errors(bio_err); 1728 goto err; 1729 } else { 1730 BIO_printf(bio_s_out, "read R BLOCK\n"); 1731 sleep(1); 1732 continue; 1733 } 1734 } else if (i == 0) { /* end of input */ 1735 ret = 1; 1736 goto end; 1737 } 1738 /* else we have data */ 1739 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || 1740 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { 1741 char *p; 1742 X509 *peer; 1743 STACK_OF(SSL_CIPHER) * sk; 1744 static const char *space = " "; 1745 1746 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1747 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 1748 BIO_puts(io, "<pre>\n"); 1749 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/ 1750 BIO_puts(io, "\n"); 1751 for (i = 0; i < local_argc; i++) { 1752 BIO_puts(io, local_argv[i]); 1753 BIO_write(io, " ", 1); 1754 } 1755 BIO_puts(io, "\n"); 1756 1757 BIO_printf(io, 1758 "Secure Renegotiation IS%s supported\n", 1759 SSL_get_secure_renegotiation_support(con) ? 1760 "" : " NOT"); 1761 1762 /* 1763 * The following is evil and should not really be 1764 * done 1765 */ 1766 BIO_printf(io, "Ciphers supported in s_server binary\n"); 1767 sk = SSL_get_ciphers(con); 1768 j = sk_SSL_CIPHER_num(sk); 1769 for (i = 0; i < j; i++) { 1770 c = sk_SSL_CIPHER_value(sk, i); 1771 BIO_printf(io, "%-11s:%-25s", 1772 SSL_CIPHER_get_version(c), 1773 SSL_CIPHER_get_name(c)); 1774 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 1775 BIO_puts(io, "\n"); 1776 } 1777 BIO_puts(io, "\n"); 1778 p = SSL_get_shared_ciphers(con, buf, bufsize); 1779 if (p != NULL) { 1780 BIO_printf(io, "---\nCiphers common between both SSL end points:\n"); 1781 j = i = 0; 1782 while (*p) { 1783 if (*p == ':') { 1784 BIO_write(io, space, 26 - j); 1785 i++; 1786 j = 0; 1787 BIO_write(io, ((i % 3) ? " " : "\n"), 1); 1788 } else { 1789 BIO_write(io, p, 1); 1790 j++; 1791 } 1792 p++; 1793 } 1794 BIO_puts(io, "\n"); 1795 } 1796 BIO_printf(io, (SSL_cache_hit(con) 1797 ? "---\nReused, " 1798 : "---\nNew, ")); 1799 c = SSL_get_current_cipher(con); 1800 BIO_printf(io, "%s, Cipher is %s\n", 1801 SSL_CIPHER_get_version(c), 1802 SSL_CIPHER_get_name(c)); 1803 SSL_SESSION_print(io, SSL_get_session(con)); 1804 BIO_printf(io, "---\n"); 1805 print_stats(io, SSL_get_SSL_CTX(con)); 1806 BIO_printf(io, "---\n"); 1807 peer = SSL_get_peer_certificate(con); 1808 if (peer != NULL) { 1809 BIO_printf(io, "Client certificate\n"); 1810 X509_print(io, peer); 1811 PEM_write_bio_X509(io, peer); 1812 } else 1813 BIO_puts(io, "no client certificate available\n"); 1814 BIO_puts(io, "</BODY></HTML>\r\n\r\n"); 1815 break; 1816 } else if ((www == 2 || www == 3) 1817 && (strncmp("GET /", buf, 5) == 0)) { 1818 BIO *file; 1819 char *p, *e; 1820 static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 1821 1822 /* skip the '/' */ 1823 p = &(buf[5]); 1824 1825 dot = 1; 1826 for (e = p; *e != '\0'; e++) { 1827 if (e[0] == ' ') 1828 break; 1829 1830 switch (dot) { 1831 case 1: 1832 dot = (e[0] == '.') ? 2 : 0; 1833 break; 1834 case 2: 1835 dot = (e[0] == '.') ? 3 : 0; 1836 break; 1837 case 3: 1838 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0; 1839 break; 1840 } 1841 if (dot == 0) 1842 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0; 1843 } 1844 dot = (dot == 3) || (dot == -1); /* filename contains 1845 * ".." component */ 1846 1847 if (*e == '\0') { 1848 BIO_puts(io, text); 1849 BIO_printf(io, "'%s' is an invalid file name\r\n", p); 1850 break; 1851 } 1852 *e = '\0'; 1853 1854 if (dot) { 1855 BIO_puts(io, text); 1856 BIO_printf(io, "'%s' contains '..' reference\r\n", p); 1857 break; 1858 } 1859 if (*p == '/') { 1860 BIO_puts(io, text); 1861 BIO_printf(io, "'%s' is an invalid path\r\n", p); 1862 break; 1863 } 1864 /* if a directory, do the index thang */ 1865 if (app_isdir(p) > 0) { 1866 BIO_puts(io, text); 1867 BIO_printf(io, "'%s' is a directory\r\n", p); 1868 break; 1869 } 1870 if ((file = BIO_new_file(p, "r")) == NULL) { 1871 BIO_puts(io, text); 1872 BIO_printf(io, "Error opening '%s'\r\n", p); 1873 ERR_print_errors(io); 1874 break; 1875 } 1876 if (!s_quiet) 1877 BIO_printf(bio_err, "FILE:%s\n", p); 1878 1879 if (www == 2) { 1880 i = strlen(p); 1881 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 1882 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 1883 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 1884 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1885 else 1886 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 1887 } 1888 /* send the file */ 1889 for (;;) { 1890 i = BIO_read(file, buf, bufsize); 1891 if (i <= 0) 1892 break; 1893 1894 #ifdef RENEG 1895 total_bytes += i; 1896 fprintf(stderr, "%d\n", i); 1897 if (total_bytes > 3 * 1024) { 1898 total_bytes = 0; 1899 fprintf(stderr, "RENEGOTIATE\n"); 1900 SSL_renegotiate(con); 1901 } 1902 #endif 1903 1904 for (j = 0; j < i;) { 1905 #ifdef RENEG 1906 { 1907 static count = 0; 1908 if (++count == 13) { 1909 SSL_renegotiate(con); 1910 } 1911 } 1912 #endif 1913 k = BIO_write(io, &(buf[j]), i - j); 1914 if (k <= 0) { 1915 if (!BIO_should_retry(io)) 1916 goto write_error; 1917 else { 1918 BIO_printf(bio_s_out, "rwrite W BLOCK\n"); 1919 } 1920 } else { 1921 j += k; 1922 } 1923 } 1924 } 1925 write_error: 1926 BIO_free(file); 1927 break; 1928 } 1929 } 1930 1931 for (;;) { 1932 i = (int) BIO_flush(io); 1933 if (i <= 0) { 1934 if (!BIO_should_retry(io)) 1935 break; 1936 } else 1937 break; 1938 } 1939 end: 1940 /* make sure we re-use sessions */ 1941 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 1942 1943 err: 1944 1945 if (ret >= 0) 1946 BIO_printf(bio_s_out, "ACCEPT\n"); 1947 1948 free(buf); 1949 BIO_free_all(io); 1950 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/ 1951 return (ret); 1952 } 1953 1954 #define MAX_SESSION_ID_ATTEMPTS 10 1955 static int 1956 generate_session_id(const SSL * ssl, unsigned char *id, 1957 unsigned int *id_len) 1958 { 1959 unsigned int count = 0; 1960 do { 1961 arc4random_buf(id, *id_len); 1962 /* 1963 * Prefix the session_id with the required prefix. NB: If our 1964 * prefix is too long, clip it - but there will be worse 1965 * effects anyway, eg. the server could only possibly create 1966 * 1 session ID (ie. the prefix!) so all future session 1967 * negotiations will fail due to conflicts. 1968 */ 1969 memcpy(id, session_id_prefix, 1970 (strlen(session_id_prefix) < *id_len) ? 1971 strlen(session_id_prefix) : *id_len); 1972 } 1973 while (SSL_has_matching_session_id(ssl, id, *id_len) && 1974 (++count < MAX_SESSION_ID_ATTEMPTS)); 1975 if (count >= MAX_SESSION_ID_ATTEMPTS) 1976 return 0; 1977 return 1; 1978 } 1979