1 /* $OpenBSD: s_server.c,v 1.30 2018/02/07 05:47:55 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, " -named_curve arg - Elliptic curve name to use for ephemeral ECDH keys.\n" \ 292 " Use \"openssl ecparam -list_curves\" for all names\n" \ 293 " (default is nistp256).\n"); 294 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n"); 295 BIO_printf(bio_err, " -nbio_test - test with the non-blocking test bio\n"); 296 BIO_printf(bio_err, " -crlf - convert LF from terminal into CRLF\n"); 297 BIO_printf(bio_err, " -debug - Print more output\n"); 298 BIO_printf(bio_err, " -msg - Show protocol messages\n"); 299 BIO_printf(bio_err, " -state - Print the SSL states\n"); 300 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n"); 301 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n"); 302 BIO_printf(bio_err, " -nocert - Don't use any certificates (Anon-DH)\n"); 303 BIO_printf(bio_err, " -cipher arg - play with 'openssl ciphers' to see what goes here\n"); 304 BIO_printf(bio_err, " -serverpref - Use server's cipher preferences\n"); 305 BIO_printf(bio_err, " -quiet - Inhibit printing of session and certificate information\n"); 306 BIO_printf(bio_err, " -tls1_2 - Just talk TLSv1.2\n"); 307 BIO_printf(bio_err, " -tls1_1 - Just talk TLSv1.1\n"); 308 BIO_printf(bio_err, " -tls1 - Just talk TLSv1\n"); 309 BIO_printf(bio_err, " -dtls1 - Just talk DTLSv1\n"); 310 BIO_printf(bio_err, " -timeout - Enable timeouts\n"); 311 BIO_printf(bio_err, " -mtu - Set link layer MTU\n"); 312 BIO_printf(bio_err, " -chain - Read a certificate chain\n"); 313 BIO_printf(bio_err, " -no_ssl2 - Just disable SSLv2\n"); 314 BIO_printf(bio_err, " -no_ssl3 - Just disable SSLv3\n"); 315 BIO_printf(bio_err, " -no_tls1 - Just disable TLSv1\n"); 316 BIO_printf(bio_err, " -no_tls1_1 - Just disable TLSv1.1\n"); 317 BIO_printf(bio_err, " -no_tls1_2 - Just disable TLSv1.2\n"); 318 #ifndef OPENSSL_NO_DH 319 BIO_printf(bio_err, " -no_dhe - Disable ephemeral DH\n"); 320 #endif 321 BIO_printf(bio_err, " -no_ecdhe - Disable ephemeral ECDH\n"); 322 BIO_printf(bio_err, " -bugs - Turn on SSL bug compatibility\n"); 323 BIO_printf(bio_err, " -www - Respond to a 'GET /' with a status page\n"); 324 BIO_printf(bio_err, " -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); 325 BIO_printf(bio_err, " -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); 326 BIO_printf(bio_err, " with the assumption it contains a complete HTTP response.\n"); 327 BIO_printf(bio_err, " -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n"); 328 BIO_printf(bio_err, " -servername host - servername for HostName TLS extension\n"); 329 BIO_printf(bio_err, " -servername_fatal - on mismatch send fatal alert (default warning alert)\n"); 330 BIO_printf(bio_err, " -cert2 arg - certificate file to use for servername\n"); 331 BIO_printf(bio_err, " (default is %s)\n", TEST_CERT2); 332 BIO_printf(bio_err, " -key2 arg - Private Key file to use for servername, in cert file if\n"); 333 BIO_printf(bio_err, " not specified (default is %s)\n", TEST_CERT2); 334 BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n"); 335 BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n"); 336 BIO_printf(bio_err," -alpn arg - set the advertised protocols for the ALPN extension (comma-separated list)\n"); 337 #ifndef OPENSSL_NO_SRTP 338 BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 339 #endif 340 BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n"); 341 BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 342 } 343 344 static int local_argc = 0; 345 static char **local_argv; 346 347 348 /* This is a context that we pass to callbacks */ 349 typedef struct tlsextctx_st { 350 char *servername; 351 BIO *biodebug; 352 int extension_error; 353 } tlsextctx; 354 355 356 static int 357 ssl_servername_cb(SSL * s, int *ad, void *arg) 358 { 359 tlsextctx *p = (tlsextctx *) arg; 360 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 361 if (servername && p->biodebug) 362 BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n", servername); 363 364 if (!p->servername) 365 return SSL_TLSEXT_ERR_NOACK; 366 367 if (servername) { 368 if (strcmp(servername, p->servername)) 369 return p->extension_error; 370 if (ctx2) { 371 BIO_printf(p->biodebug, "Switching server context.\n"); 372 SSL_set_SSL_CTX(s, ctx2); 373 } 374 } 375 return SSL_TLSEXT_ERR_OK; 376 } 377 378 /* Structure passed to cert status callback */ 379 380 typedef struct tlsextstatusctx_st { 381 /* Default responder to use */ 382 char *host, *path, *port; 383 int use_ssl; 384 int timeout; 385 BIO *err; 386 int verbose; 387 } tlsextstatusctx; 388 389 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0}; 390 391 /* Certificate Status callback. This is called when a client includes a 392 * certificate status request extension. 393 * 394 * This is a simplified version. It examines certificates each time and 395 * makes one OCSP responder query for each request. 396 * 397 * A full version would store details such as the OCSP certificate IDs and 398 * minimise the number of OCSP responses by caching them until they were 399 * considered "expired". 400 */ 401 402 static int 403 cert_status_cb(SSL * s, void *arg) 404 { 405 tlsextstatusctx *srctx = arg; 406 BIO *err = srctx->err; 407 char *host = NULL, *port = NULL, *path = NULL; 408 int use_ssl; 409 unsigned char *rspder = NULL; 410 int rspderlen; 411 STACK_OF(OPENSSL_STRING) * aia = NULL; 412 X509 *x = NULL; 413 X509_STORE_CTX inctx; 414 X509_OBJECT obj; 415 OCSP_REQUEST *req = NULL; 416 OCSP_RESPONSE *resp = NULL; 417 OCSP_CERTID *id = NULL; 418 STACK_OF(X509_EXTENSION) * exts; 419 int ret = SSL_TLSEXT_ERR_NOACK; 420 int i; 421 422 if (srctx->verbose) 423 BIO_puts(err, "cert_status: callback called\n"); 424 /* Build up OCSP query from server certificate */ 425 x = SSL_get_certificate(s); 426 aia = X509_get1_ocsp(x); 427 if (aia) { 428 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0), 429 &host, &port, &path, &use_ssl)) { 430 BIO_puts(err, "cert_status: can't parse AIA URL\n"); 431 goto err; 432 } 433 if (srctx->verbose) 434 BIO_printf(err, "cert_status: AIA URL: %s\n", 435 sk_OPENSSL_STRING_value(aia, 0)); 436 } else { 437 if (!srctx->host) { 438 BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n"); 439 goto done; 440 } 441 host = srctx->host; 442 path = srctx->path; 443 port = srctx->port; 444 use_ssl = srctx->use_ssl; 445 } 446 447 if (!X509_STORE_CTX_init(&inctx, 448 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), 449 NULL, NULL)) 450 goto err; 451 if (X509_STORE_get_by_subject(&inctx, X509_LU_X509, 452 X509_get_issuer_name(x), &obj) <= 0) { 453 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n"); 454 X509_STORE_CTX_cleanup(&inctx); 455 goto done; 456 } 457 req = OCSP_REQUEST_new(); 458 if (!req) 459 goto err; 460 id = OCSP_cert_to_id(NULL, x, obj.data.x509); 461 X509_free(obj.data.x509); 462 X509_STORE_CTX_cleanup(&inctx); 463 if (!id) 464 goto err; 465 if (!OCSP_request_add0_id(req, id)) 466 goto err; 467 id = NULL; 468 /* Add any extensions to the request */ 469 SSL_get_tlsext_status_exts(s, &exts); 470 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { 471 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); 472 if (!OCSP_REQUEST_add_ext(req, ext, -1)) 473 goto err; 474 } 475 resp = process_responder(err, req, host, path, port, use_ssl, NULL, 476 srctx->timeout); 477 if (!resp) { 478 BIO_puts(err, "cert_status: error querying responder\n"); 479 goto done; 480 } 481 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); 482 if (rspderlen <= 0) 483 goto err; 484 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); 485 if (srctx->verbose) { 486 BIO_puts(err, "cert_status: ocsp response sent:\n"); 487 OCSP_RESPONSE_print(err, resp, 2); 488 } 489 ret = SSL_TLSEXT_ERR_OK; 490 done: 491 if (ret != SSL_TLSEXT_ERR_OK) 492 ERR_print_errors(err); 493 if (aia) { 494 free(host); 495 free(path); 496 free(port); 497 X509_email_free(aia); 498 } 499 if (id) 500 OCSP_CERTID_free(id); 501 if (req) 502 OCSP_REQUEST_free(req); 503 if (resp) 504 OCSP_RESPONSE_free(resp); 505 return ret; 506 err: 507 ret = SSL_TLSEXT_ERR_ALERT_FATAL; 508 goto done; 509 } 510 511 /* This the context that we pass to alpn_cb */ 512 typedef struct tlsextalpnctx_st { 513 unsigned char *data; 514 unsigned short len; 515 } tlsextalpnctx; 516 517 static int 518 alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 519 const unsigned char *in, unsigned int inlen, void *arg) 520 { 521 tlsextalpnctx *alpn_ctx = arg; 522 523 if (!s_quiet) { 524 /* We can assume that in is syntactically valid. */ 525 unsigned i; 526 527 BIO_printf(bio_s_out, 528 "ALPN protocols advertised by the client: "); 529 for (i = 0; i < inlen; ) { 530 if (i) 531 BIO_write(bio_s_out, ", ", 2); 532 BIO_write(bio_s_out, &in[i + 1], in[i]); 533 i += in[i] + 1; 534 } 535 BIO_write(bio_s_out, "\n", 1); 536 } 537 538 if (SSL_select_next_proto((unsigned char**)out, outlen, alpn_ctx->data, 539 alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED) 540 return (SSL_TLSEXT_ERR_NOACK); 541 542 if (!s_quiet) { 543 BIO_printf(bio_s_out, "ALPN protocols selected: "); 544 BIO_write(bio_s_out, *out, *outlen); 545 BIO_write(bio_s_out, "\n", 1); 546 } 547 548 return (SSL_TLSEXT_ERR_OK); 549 } 550 551 #ifndef OPENSSL_NO_SRTP 552 static char *srtp_profiles = NULL; 553 #endif 554 555 int 556 s_server_main(int argc, char *argv[]) 557 { 558 X509_VERIFY_PARAM *vpm = NULL; 559 int badarg = 0; 560 short port = PORT; 561 char *CApath = NULL, *CAfile = NULL; 562 unsigned char *context = NULL; 563 char *dhfile = NULL; 564 char *named_curve = NULL; 565 int badop = 0, bugs = 0; 566 int ret = 1; 567 int off = 0; 568 int no_dhe = 0, no_ecdhe = 0, nocert = 0; 569 int state = 0; 570 const SSL_METHOD *meth = NULL; 571 int socket_type = SOCK_STREAM; 572 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM; 573 char *passarg = NULL, *pass = NULL; 574 char *dpassarg = NULL, *dpass = NULL; 575 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM; 576 X509 *s_cert = NULL, *s_dcert = NULL; 577 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 578 int no_cache = 0; 579 const char *errstr = NULL; 580 EVP_PKEY *s_key2 = NULL; 581 X509 *s_cert2 = NULL; 582 tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING}; 583 const char *alpn_in = NULL; 584 tlsextalpnctx alpn_ctx = { NULL, 0 }; 585 586 if (single_execution) { 587 if (pledge("stdio rpath inet dns tty", NULL) == -1) { 588 perror("pledge"); 589 exit(1); 590 } 591 } 592 593 meth = SSLv23_server_method(); 594 595 local_argc = argc; 596 local_argv = argv; 597 598 s_server_init(); 599 600 verify_depth = 0; 601 s_nbio = 0; 602 s_nbio_test = 0; 603 604 argc--; 605 argv++; 606 607 while (argc >= 1) { 608 if ((strcmp(*argv, "-port") == 0) || 609 (strcmp(*argv, "-accept") == 0)) { 610 if (--argc < 1) 611 goto bad; 612 if (!extract_port(*(++argv), &port)) 613 goto bad; 614 } else if (strcmp(*argv, "-verify") == 0) { 615 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; 616 if (--argc < 1) 617 goto bad; 618 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 619 if (errstr) 620 goto bad; 621 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 622 } else if (strcmp(*argv, "-Verify") == 0) { 623 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | 624 SSL_VERIFY_CLIENT_ONCE; 625 if (--argc < 1) 626 goto bad; 627 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 628 if (errstr) 629 goto bad; 630 BIO_printf(bio_err, "verify depth is %d, must return a certificate\n", verify_depth); 631 } else if (strcmp(*argv, "-context") == 0) { 632 if (--argc < 1) 633 goto bad; 634 context = (unsigned char *) *(++argv); 635 } else if (strcmp(*argv, "-cert") == 0) { 636 if (--argc < 1) 637 goto bad; 638 s_cert_file = *(++argv); 639 } else if (strcmp(*argv, "-certform") == 0) { 640 if (--argc < 1) 641 goto bad; 642 s_cert_format = str2fmt(*(++argv)); 643 } else if (strcmp(*argv, "-key") == 0) { 644 if (--argc < 1) 645 goto bad; 646 s_key_file = *(++argv); 647 } else if (strcmp(*argv, "-keyform") == 0) { 648 if (--argc < 1) 649 goto bad; 650 s_key_format = str2fmt(*(++argv)); 651 } else if (strcmp(*argv, "-pass") == 0) { 652 if (--argc < 1) 653 goto bad; 654 passarg = *(++argv); 655 } else if (strcmp(*argv, "-dhparam") == 0) { 656 if (--argc < 1) 657 goto bad; 658 dhfile = *(++argv); 659 } 660 else if (strcmp(*argv, "-named_curve") == 0) { 661 if (--argc < 1) 662 goto bad; 663 named_curve = *(++argv); 664 } 665 else if (strcmp(*argv, "-dcertform") == 0) { 666 if (--argc < 1) 667 goto bad; 668 s_dcert_format = str2fmt(*(++argv)); 669 } else if (strcmp(*argv, "-dcert") == 0) { 670 if (--argc < 1) 671 goto bad; 672 s_dcert_file = *(++argv); 673 } else if (strcmp(*argv, "-dkeyform") == 0) { 674 if (--argc < 1) 675 goto bad; 676 s_dkey_format = str2fmt(*(++argv)); 677 } else if (strcmp(*argv, "-dpass") == 0) { 678 if (--argc < 1) 679 goto bad; 680 dpassarg = *(++argv); 681 } else if (strcmp(*argv, "-dkey") == 0) { 682 if (--argc < 1) 683 goto bad; 684 s_dkey_file = *(++argv); 685 } else if (strcmp(*argv, "-nocert") == 0) { 686 nocert = 1; 687 } else if (strcmp(*argv, "-CApath") == 0) { 688 if (--argc < 1) 689 goto bad; 690 CApath = *(++argv); 691 } else if (strcmp(*argv, "-no_cache") == 0) 692 no_cache = 1; 693 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 694 if (badarg) 695 goto bad; 696 continue; 697 } else if (strcmp(*argv, "-verify_return_error") == 0) 698 verify_return_error = 1; 699 else if (strcmp(*argv, "-serverpref") == 0) { 700 off |= SSL_OP_CIPHER_SERVER_PREFERENCE; 701 } else if (strcmp(*argv, "-legacy_renegotiation") == 0) 702 ; /* no-op */ 703 else if (strcmp(*argv, "-cipher") == 0) { 704 if (--argc < 1) 705 goto bad; 706 cipher = *(++argv); 707 } else if (strcmp(*argv, "-CAfile") == 0) { 708 if (--argc < 1) 709 goto bad; 710 CAfile = *(++argv); 711 } 712 else if (strcmp(*argv, "-nbio") == 0) { 713 s_nbio = 1; 714 } 715 else if (strcmp(*argv, "-nbio_test") == 0) { 716 s_nbio = 1; 717 s_nbio_test = 1; 718 } else if (strcmp(*argv, "-debug") == 0) { 719 s_debug = 1; 720 } 721 else if (strcmp(*argv, "-tlsextdebug") == 0) 722 s_tlsextdebug = 1; 723 else if (strcmp(*argv, "-status") == 0) 724 s_tlsextstatus = 1; 725 else if (strcmp(*argv, "-status_verbose") == 0) { 726 s_tlsextstatus = 1; 727 tlscstatp.verbose = 1; 728 } else if (!strcmp(*argv, "-status_timeout")) { 729 s_tlsextstatus = 1; 730 if (--argc < 1) 731 goto bad; 732 tlscstatp.timeout = strtonum(*(++argv), 0, INT_MAX, &errstr); 733 if (errstr) 734 goto bad; 735 } else if (!strcmp(*argv, "-status_url")) { 736 s_tlsextstatus = 1; 737 if (--argc < 1) 738 goto bad; 739 if (!OCSP_parse_url(*(++argv), 740 &tlscstatp.host, 741 &tlscstatp.port, 742 &tlscstatp.path, 743 &tlscstatp.use_ssl)) { 744 BIO_printf(bio_err, "Error parsing URL\n"); 745 goto bad; 746 } 747 } 748 else if (strcmp(*argv, "-msg") == 0) { 749 s_msg = 1; 750 } else if (strcmp(*argv, "-state") == 0) { 751 state = 1; 752 } else if (strcmp(*argv, "-crlf") == 0) { 753 s_crlf = 1; 754 } else if (strcmp(*argv, "-quiet") == 0) { 755 s_quiet = 1; 756 } else if (strcmp(*argv, "-bugs") == 0) { 757 bugs = 1; 758 } else if (strcmp(*argv, "-no_tmp_rsa") == 0) { 759 /* No-op. */ 760 } else if (strcmp(*argv, "-no_dhe") == 0) { 761 no_dhe = 1; 762 } else if (strcmp(*argv, "-no_ecdhe") == 0) { 763 no_ecdhe = 1; 764 } else if (strcmp(*argv, "-www") == 0) { 765 www = 1; 766 } else if (strcmp(*argv, "-WWW") == 0) { 767 www = 2; 768 } else if (strcmp(*argv, "-HTTP") == 0) { 769 www = 3; 770 } else if (strcmp(*argv, "-no_ssl2") == 0) { 771 off |= SSL_OP_NO_SSLv2; 772 } else if (strcmp(*argv, "-no_ssl3") == 0) { 773 off |= SSL_OP_NO_SSLv3; 774 } else if (strcmp(*argv, "-no_tls1") == 0) { 775 off |= SSL_OP_NO_TLSv1; 776 } else if (strcmp(*argv, "-no_tls1_1") == 0) { 777 off |= SSL_OP_NO_TLSv1_1; 778 } else if (strcmp(*argv, "-no_tls1_2") == 0) { 779 off |= SSL_OP_NO_TLSv1_2; 780 } else if (strcmp(*argv, "-no_comp") == 0) { 781 off |= SSL_OP_NO_COMPRESSION; 782 } else if (strcmp(*argv, "-no_ticket") == 0) { 783 off |= SSL_OP_NO_TICKET; 784 } else if (strcmp(*argv, "-tls1") == 0) { 785 meth = TLSv1_server_method(); 786 } else if (strcmp(*argv, "-tls1_1") == 0) { 787 meth = TLSv1_1_server_method(); 788 } else if (strcmp(*argv, "-tls1_2") == 0) { 789 meth = TLSv1_2_server_method(); 790 } 791 #ifndef OPENSSL_NO_DTLS1 792 else if (strcmp(*argv, "-dtls1") == 0) { 793 meth = DTLSv1_server_method(); 794 socket_type = SOCK_DGRAM; 795 } else if (strcmp(*argv, "-timeout") == 0) 796 enable_timeouts = 1; 797 else if (strcmp(*argv, "-mtu") == 0) { 798 if (--argc < 1) 799 goto bad; 800 socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr); 801 if (errstr) 802 goto bad; 803 } else if (strcmp(*argv, "-chain") == 0) 804 cert_chain = 1; 805 #endif 806 else if (strcmp(*argv, "-id_prefix") == 0) { 807 if (--argc < 1) 808 goto bad; 809 session_id_prefix = *(++argv); 810 } 811 else if (strcmp(*argv, "-servername") == 0) { 812 if (--argc < 1) 813 goto bad; 814 tlsextcbp.servername = *(++argv); 815 } else if (strcmp(*argv, "-servername_fatal") == 0) { 816 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; 817 } else if (strcmp(*argv, "-cert2") == 0) { 818 if (--argc < 1) 819 goto bad; 820 s_cert_file2 = *(++argv); 821 } else if (strcmp(*argv, "-key2") == 0) { 822 if (--argc < 1) 823 goto bad; 824 s_key_file2 = *(++argv); 825 } else if (strcmp(*argv, "-nextprotoneg") == 0) { 826 /* Ignored. */ 827 if (--argc < 1) 828 goto bad; 829 ++argv; 830 } else if (strcmp(*argv,"-alpn") == 0) { 831 if (--argc < 1) 832 goto bad; 833 alpn_in = *(++argv); 834 } 835 #ifndef OPENSSL_NO_SRTP 836 else if (strcmp(*argv, "-use_srtp") == 0) { 837 if (--argc < 1) 838 goto bad; 839 srtp_profiles = *(++argv); 840 } 841 #endif 842 else if (strcmp(*argv, "-keymatexport") == 0) { 843 if (--argc < 1) 844 goto bad; 845 keymatexportlabel = *(++argv); 846 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 847 if (--argc < 1) 848 goto bad; 849 keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr); 850 if (errstr) 851 goto bad; 852 } else { 853 BIO_printf(bio_err, "unknown option %s\n", *argv); 854 badop = 1; 855 break; 856 } 857 argc--; 858 argv++; 859 } 860 if (badop) { 861 bad: 862 if (errstr) 863 BIO_printf(bio_err, "invalid argument %s: %s\n", 864 *argv, errstr); 865 else 866 sv_usage(); 867 goto end; 868 } 869 870 if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) { 871 BIO_printf(bio_err, "Error getting password\n"); 872 goto end; 873 } 874 if (s_key_file == NULL) 875 s_key_file = s_cert_file; 876 if (s_key_file2 == NULL) 877 s_key_file2 = s_cert_file2; 878 879 if (nocert == 0) { 880 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, 881 "server certificate private key file"); 882 if (!s_key) { 883 ERR_print_errors(bio_err); 884 goto end; 885 } 886 s_cert = load_cert(bio_err, s_cert_file, s_cert_format, 887 NULL, "server certificate file"); 888 889 if (!s_cert) { 890 ERR_print_errors(bio_err); 891 goto end; 892 } 893 if (tlsextcbp.servername) { 894 s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, 895 "second server certificate private key file"); 896 if (!s_key2) { 897 ERR_print_errors(bio_err); 898 goto end; 899 } 900 s_cert2 = load_cert(bio_err, s_cert_file2, s_cert_format, 901 NULL, "second server certificate file"); 902 903 if (!s_cert2) { 904 ERR_print_errors(bio_err); 905 goto end; 906 } 907 } 908 } 909 alpn_ctx.data = NULL; 910 if (alpn_in) { 911 unsigned short len; 912 alpn_ctx.data = next_protos_parse(&len, alpn_in); 913 if (alpn_ctx.data == NULL) 914 goto end; 915 alpn_ctx.len = len; 916 } 917 918 if (s_dcert_file) { 919 920 if (s_dkey_file == NULL) 921 s_dkey_file = s_dcert_file; 922 923 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format, 924 0, dpass, "second certificate private key file"); 925 if (!s_dkey) { 926 ERR_print_errors(bio_err); 927 goto end; 928 } 929 s_dcert = load_cert(bio_err, s_dcert_file, s_dcert_format, 930 NULL, "second server certificate file"); 931 932 if (!s_dcert) { 933 ERR_print_errors(bio_err); 934 goto end; 935 } 936 } 937 if (bio_s_out == NULL) { 938 if (s_quiet && !s_debug && !s_msg) { 939 bio_s_out = BIO_new(BIO_s_null()); 940 } else { 941 if (bio_s_out == NULL) 942 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE); 943 } 944 } 945 if (nocert) { 946 s_cert_file = NULL; 947 s_key_file = NULL; 948 s_dcert_file = NULL; 949 s_dkey_file = NULL; 950 s_cert_file2 = NULL; 951 s_key_file2 = NULL; 952 } 953 ctx = SSL_CTX_new(meth); 954 if (ctx == NULL) { 955 ERR_print_errors(bio_err); 956 goto end; 957 } 958 if (session_id_prefix) { 959 if (strlen(session_id_prefix) >= 32) 960 BIO_printf(bio_err, 961 "warning: id_prefix is too long, only one new session will be possible\n"); 962 else if (strlen(session_id_prefix) >= 16) 963 BIO_printf(bio_err, 964 "warning: id_prefix is too long if you use SSLv2\n"); 965 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 966 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 967 ERR_print_errors(bio_err); 968 goto end; 969 } 970 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 971 } 972 SSL_CTX_set_quiet_shutdown(ctx, 1); 973 if (bugs) 974 SSL_CTX_set_options(ctx, SSL_OP_ALL); 975 SSL_CTX_set_options(ctx, off); 976 /* 977 * DTLS: partial reads end up discarding unread UDP bytes :-( Setting 978 * read ahead solves this problem. 979 */ 980 if (socket_type == SOCK_DGRAM) 981 SSL_CTX_set_read_ahead(ctx, 1); 982 983 if (state) 984 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 985 if (no_cache) 986 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 987 else 988 SSL_CTX_sess_set_cache_size(ctx, 128); 989 990 #ifndef OPENSSL_NO_SRTP 991 if (srtp_profiles != NULL) 992 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 993 #endif 994 995 996 if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) || 997 (!SSL_CTX_set_default_verify_paths(ctx))) { 998 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */ 999 ERR_print_errors(bio_err); 1000 /* goto end; */ 1001 } 1002 if (vpm) 1003 SSL_CTX_set1_param(ctx, vpm); 1004 1005 if (s_cert2) { 1006 ctx2 = SSL_CTX_new(meth); 1007 if (ctx2 == NULL) { 1008 ERR_print_errors(bio_err); 1009 goto end; 1010 } 1011 } 1012 if (ctx2) { 1013 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 1014 1015 if (session_id_prefix) { 1016 if (strlen(session_id_prefix) >= 32) 1017 BIO_printf(bio_err, 1018 "warning: id_prefix is too long, only one new session will be possible\n"); 1019 else if (strlen(session_id_prefix) >= 16) 1020 BIO_printf(bio_err, 1021 "warning: id_prefix is too long if you use SSLv2\n"); 1022 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { 1023 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1024 ERR_print_errors(bio_err); 1025 goto end; 1026 } 1027 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1028 } 1029 SSL_CTX_set_quiet_shutdown(ctx2, 1); 1030 if (bugs) 1031 SSL_CTX_set_options(ctx2, SSL_OP_ALL); 1032 SSL_CTX_set_options(ctx2, off); 1033 /* 1034 * DTLS: partial reads end up discarding unread UDP bytes :-( 1035 * Setting read ahead solves this problem. 1036 */ 1037 if (socket_type == SOCK_DGRAM) 1038 SSL_CTX_set_read_ahead(ctx2, 1); 1039 1040 if (state) 1041 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 1042 1043 if (no_cache) 1044 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 1045 else 1046 SSL_CTX_sess_set_cache_size(ctx2, 128); 1047 1048 if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) || 1049 (!SSL_CTX_set_default_verify_paths(ctx2))) { 1050 ERR_print_errors(bio_err); 1051 } 1052 if (vpm) 1053 SSL_CTX_set1_param(ctx2, vpm); 1054 } 1055 if (alpn_ctx.data) 1056 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 1057 1058 #ifndef OPENSSL_NO_DH 1059 if (!no_dhe) { 1060 DH *dh = NULL; 1061 1062 if (dhfile) 1063 dh = load_dh_param(dhfile); 1064 else if (s_cert_file) 1065 dh = load_dh_param(s_cert_file); 1066 1067 if (dh != NULL) 1068 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1069 else 1070 BIO_printf(bio_s_out, "Using auto DH parameters\n"); 1071 (void) BIO_flush(bio_s_out); 1072 1073 if (dh == NULL) 1074 SSL_CTX_set_dh_auto(ctx, 1); 1075 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { 1076 BIO_printf(bio_err, 1077 "Error setting temp DH parameters\n"); 1078 ERR_print_errors(bio_err); 1079 DH_free(dh); 1080 goto end; 1081 } 1082 1083 if (ctx2) { 1084 if (!dhfile) { 1085 DH *dh2 = NULL; 1086 1087 if (s_cert_file2 != NULL) 1088 dh2 = load_dh_param(s_cert_file2); 1089 if (dh2 != NULL) { 1090 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1091 (void) BIO_flush(bio_s_out); 1092 1093 DH_free(dh); 1094 dh = dh2; 1095 } 1096 } 1097 if (dh == NULL) 1098 SSL_CTX_set_dh_auto(ctx2, 1); 1099 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { 1100 BIO_printf(bio_err, 1101 "Error setting temp DH parameters\n"); 1102 ERR_print_errors(bio_err); 1103 DH_free(dh); 1104 goto end; 1105 } 1106 } 1107 DH_free(dh); 1108 } 1109 #endif 1110 1111 if (!no_ecdhe) { 1112 EC_KEY *ecdh = NULL; 1113 1114 if (named_curve) { 1115 int nid = OBJ_sn2nid(named_curve); 1116 1117 if (nid == 0) { 1118 BIO_printf(bio_err, "unknown curve name (%s)\n", 1119 named_curve); 1120 goto end; 1121 } 1122 ecdh = EC_KEY_new_by_curve_name(nid); 1123 if (ecdh == NULL) { 1124 BIO_printf(bio_err, "unable to create curve (%s)\n", 1125 named_curve); 1126 goto end; 1127 } 1128 } 1129 if (ecdh != NULL) { 1130 BIO_printf(bio_s_out, "Setting temp ECDH parameters\n"); 1131 } else { 1132 BIO_printf(bio_s_out, "Using default temp ECDH parameters\n"); 1133 ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); 1134 if (ecdh == NULL) { 1135 BIO_printf(bio_err, "unable to create curve (nistp256)\n"); 1136 goto end; 1137 } 1138 } 1139 (void) BIO_flush(bio_s_out); 1140 1141 SSL_CTX_set_tmp_ecdh(ctx, ecdh); 1142 if (ctx2) 1143 SSL_CTX_set_tmp_ecdh(ctx2, ecdh); 1144 EC_KEY_free(ecdh); 1145 } 1146 1147 if (!set_cert_key_stuff(ctx, s_cert, s_key)) 1148 goto end; 1149 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2)) 1150 goto end; 1151 if (s_dcert != NULL) { 1152 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey)) 1153 goto end; 1154 } 1155 1156 if (cipher != NULL) { 1157 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 1158 BIO_printf(bio_err, "error setting cipher list\n"); 1159 ERR_print_errors(bio_err); 1160 goto end; 1161 } 1162 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2, cipher)) { 1163 BIO_printf(bio_err, "error setting cipher list\n"); 1164 ERR_print_errors(bio_err); 1165 goto end; 1166 } 1167 } 1168 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); 1169 SSL_CTX_set_session_id_context(ctx, (void *) &s_server_session_id_context, 1170 sizeof s_server_session_id_context); 1171 1172 /* Set DTLS cookie generation and verification callbacks */ 1173 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 1174 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 1175 1176 if (ctx2) { 1177 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); 1178 SSL_CTX_set_session_id_context(ctx2, (void *) &s_server_session_id_context, 1179 sizeof s_server_session_id_context); 1180 1181 tlsextcbp.biodebug = bio_s_out; 1182 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 1183 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); 1184 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1185 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1186 } 1187 1188 if (CAfile != NULL) { 1189 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); 1190 if (ctx2) 1191 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); 1192 } 1193 BIO_printf(bio_s_out, "ACCEPT\n"); 1194 (void) BIO_flush(bio_s_out); 1195 if (www) 1196 do_server(port, socket_type, &accept_socket, www_body, context); 1197 else 1198 do_server(port, socket_type, &accept_socket, sv_body, context); 1199 print_stats(bio_s_out, ctx); 1200 ret = 0; 1201 end: 1202 SSL_CTX_free(ctx); 1203 X509_free(s_cert); 1204 X509_free(s_dcert); 1205 EVP_PKEY_free(s_key); 1206 EVP_PKEY_free(s_dkey); 1207 free(pass); 1208 free(dpass); 1209 X509_VERIFY_PARAM_free(vpm); 1210 free(tlscstatp.host); 1211 free(tlscstatp.port); 1212 free(tlscstatp.path); 1213 SSL_CTX_free(ctx2); 1214 X509_free(s_cert2); 1215 EVP_PKEY_free(s_key2); 1216 free(alpn_ctx.data); 1217 if (bio_s_out != NULL) { 1218 BIO_free(bio_s_out); 1219 bio_s_out = NULL; 1220 } 1221 1222 return (ret); 1223 } 1224 1225 static void 1226 print_stats(BIO * bio, SSL_CTX * ssl_ctx) 1227 { 1228 BIO_printf(bio, "%4ld items in the session cache\n", 1229 SSL_CTX_sess_number(ssl_ctx)); 1230 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 1231 SSL_CTX_sess_connect(ssl_ctx)); 1232 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 1233 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 1234 BIO_printf(bio, "%4ld client connects that finished\n", 1235 SSL_CTX_sess_connect_good(ssl_ctx)); 1236 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 1237 SSL_CTX_sess_accept(ssl_ctx)); 1238 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 1239 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 1240 BIO_printf(bio, "%4ld server accepts that finished\n", 1241 SSL_CTX_sess_accept_good(ssl_ctx)); 1242 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); 1243 BIO_printf(bio, "%4ld session cache misses\n", SSL_CTX_sess_misses(ssl_ctx)); 1244 BIO_printf(bio, "%4ld session cache timeouts\n", SSL_CTX_sess_timeouts(ssl_ctx)); 1245 BIO_printf(bio, "%4ld callback cache hits\n", SSL_CTX_sess_cb_hits(ssl_ctx)); 1246 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 1247 SSL_CTX_sess_cache_full(ssl_ctx), 1248 SSL_CTX_sess_get_cache_size(ssl_ctx)); 1249 } 1250 1251 static int 1252 sv_body(char *hostname, int s, unsigned char *context) 1253 { 1254 char *buf = NULL; 1255 int ret = 1; 1256 int k, i; 1257 unsigned long l; 1258 SSL *con = NULL; 1259 BIO *sbio; 1260 struct timeval timeout; 1261 1262 if ((buf = malloc(bufsize)) == NULL) { 1263 BIO_printf(bio_err, "out of memory\n"); 1264 goto err; 1265 } 1266 if (s_nbio) { 1267 if (!s_quiet) 1268 BIO_printf(bio_err, "turning on non blocking io\n"); 1269 if (!BIO_socket_nbio(s, 1)) 1270 ERR_print_errors(bio_err); 1271 } 1272 1273 if (con == NULL) { 1274 con = SSL_new(ctx); 1275 if (s_tlsextdebug) { 1276 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1277 SSL_set_tlsext_debug_arg(con, bio_s_out); 1278 } 1279 if (s_tlsextstatus) { 1280 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 1281 tlscstatp.err = bio_err; 1282 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); 1283 } 1284 if (context) 1285 SSL_set_session_id_context(con, context, 1286 strlen((char *) context)); 1287 } 1288 SSL_clear(con); 1289 1290 if (SSL_version(con) == DTLS1_VERSION) { 1291 1292 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1293 1294 if (enable_timeouts) { 1295 timeout.tv_sec = 0; 1296 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1297 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1298 1299 timeout.tv_sec = 0; 1300 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1301 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1302 } 1303 if (socket_mtu > 28) { 1304 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1305 SSL_set_mtu(con, socket_mtu - 28); 1306 } else 1307 /* want to do MTU discovery */ 1308 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1309 1310 /* turn on cookie exchange */ 1311 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 1312 } else 1313 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1314 1315 if (s_nbio_test) { 1316 BIO *test; 1317 1318 test = BIO_new(BIO_f_nbio_test()); 1319 sbio = BIO_push(test, sbio); 1320 } 1321 1322 SSL_set_bio(con, sbio, sbio); 1323 SSL_set_accept_state(con); 1324 /* SSL_set_fd(con,s); */ 1325 1326 if (s_debug) { 1327 SSL_set_debug(con, 1); 1328 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1329 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1330 } 1331 if (s_msg) { 1332 SSL_set_msg_callback(con, msg_cb); 1333 SSL_set_msg_callback_arg(con, bio_s_out); 1334 } 1335 if (s_tlsextdebug) { 1336 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1337 SSL_set_tlsext_debug_arg(con, bio_s_out); 1338 } 1339 1340 for (;;) { 1341 int read_from_terminal; 1342 int read_from_sslcon; 1343 struct pollfd pfd[2]; 1344 int ptimeout; 1345 1346 read_from_terminal = 0; 1347 read_from_sslcon = SSL_pending(con); 1348 1349 if (!read_from_sslcon) { 1350 pfd[0].fd = fileno(stdin); 1351 pfd[0].events = POLLIN; 1352 pfd[1].fd = s; 1353 pfd[1].events = POLLIN; 1354 1355 if ((SSL_version(con) == DTLS1_VERSION) && 1356 DTLSv1_get_timeout(con, &timeout)) 1357 ptimeout = timeout.tv_sec * 1000 + 1358 timeout.tv_usec / 1000; 1359 else 1360 ptimeout = -1; 1361 1362 i = poll(pfd, 2, ptimeout); 1363 1364 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) { 1365 BIO_printf(bio_err, "TIMEOUT occured\n"); 1366 } 1367 if (i <= 0) 1368 continue; 1369 if (pfd[0].revents) { 1370 if ((pfd[0].revents & (POLLERR|POLLNVAL))) 1371 continue; 1372 read_from_terminal = 1; 1373 } 1374 if (pfd[1].revents) { 1375 if ((pfd[1].revents & (POLLERR|POLLNVAL))) 1376 continue; 1377 read_from_sslcon = 1; 1378 } 1379 } 1380 if (read_from_terminal) { 1381 if (s_crlf) { 1382 int j, lf_num; 1383 1384 i = read(fileno(stdin), buf, bufsize / 2); 1385 lf_num = 0; 1386 /* both loops are skipped when i <= 0 */ 1387 for (j = 0; j < i; j++) 1388 if (buf[j] == '\n') 1389 lf_num++; 1390 for (j = i - 1; j >= 0; j--) { 1391 buf[j + lf_num] = buf[j]; 1392 if (buf[j] == '\n') { 1393 lf_num--; 1394 i++; 1395 buf[j + lf_num] = '\r'; 1396 } 1397 } 1398 assert(lf_num == 0); 1399 } else 1400 i = read(fileno(stdin), buf, bufsize); 1401 if (!s_quiet) { 1402 if ((i <= 0) || (buf[0] == 'Q')) { 1403 BIO_printf(bio_s_out, "DONE\n"); 1404 shutdown(s, SHUT_RD); 1405 close(s); 1406 close_accept_socket(); 1407 ret = -11; 1408 goto err; 1409 } 1410 if ((i <= 0) || (buf[0] == 'q')) { 1411 BIO_printf(bio_s_out, "DONE\n"); 1412 if (SSL_version(con) != DTLS1_VERSION) { 1413 shutdown(s, SHUT_RD); 1414 close(s); 1415 } 1416 /* 1417 * close_accept_socket(); ret= -11; 1418 */ 1419 goto err; 1420 } 1421 if ((buf[0] == 'r') && 1422 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1423 SSL_renegotiate(con); 1424 i = SSL_do_handshake(con); 1425 printf("SSL_do_handshake -> %d\n", i); 1426 i = 0; /* 13; */ 1427 continue; 1428 /* 1429 * RE-NEGOTIATE\n"); 1430 */ 1431 } 1432 if ((buf[0] == 'R') && 1433 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1434 SSL_set_verify(con, 1435 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, NULL); 1436 SSL_renegotiate(con); 1437 i = SSL_do_handshake(con); 1438 printf("SSL_do_handshake -> %d\n", i); 1439 i = 0; /* 13; */ 1440 continue; 1441 /* 1442 * RE-NEGOTIATE asking for client 1443 * cert\n"); 1444 */ 1445 } 1446 if (buf[0] == 'P') { 1447 static const char *str = "Lets print some clear text\n"; 1448 BIO_write(SSL_get_wbio(con), str, strlen(str)); 1449 } 1450 if (buf[0] == 'S') { 1451 print_stats(bio_s_out, SSL_get_SSL_CTX(con)); 1452 } 1453 } 1454 l = k = 0; 1455 for (;;) { 1456 /* should do a select for the write */ 1457 #ifdef RENEG 1458 { 1459 static count = 0; 1460 if (++count == 100) { 1461 count = 0; 1462 SSL_renegotiate(con); 1463 } 1464 } 1465 #endif 1466 k = SSL_write(con, &(buf[l]), (unsigned int) i); 1467 switch (SSL_get_error(con, k)) { 1468 case SSL_ERROR_NONE: 1469 break; 1470 case SSL_ERROR_WANT_WRITE: 1471 case SSL_ERROR_WANT_READ: 1472 case SSL_ERROR_WANT_X509_LOOKUP: 1473 BIO_printf(bio_s_out, "Write BLOCK\n"); 1474 break; 1475 case SSL_ERROR_SYSCALL: 1476 case SSL_ERROR_SSL: 1477 BIO_printf(bio_s_out, "ERROR\n"); 1478 ERR_print_errors(bio_err); 1479 ret = 1; 1480 goto err; 1481 /* break; */ 1482 case SSL_ERROR_ZERO_RETURN: 1483 BIO_printf(bio_s_out, "DONE\n"); 1484 ret = 1; 1485 goto err; 1486 } 1487 l += k; 1488 i -= k; 1489 if (i <= 0) 1490 break; 1491 } 1492 } 1493 if (read_from_sslcon) { 1494 if (!SSL_is_init_finished(con)) { 1495 i = init_ssl_connection(con); 1496 1497 if (i < 0) { 1498 ret = 0; 1499 goto err; 1500 } else if (i == 0) { 1501 ret = 1; 1502 goto err; 1503 } 1504 } else { 1505 again: 1506 i = SSL_read(con, (char *) buf, bufsize); 1507 switch (SSL_get_error(con, i)) { 1508 case SSL_ERROR_NONE: { 1509 int len, n; 1510 for (len = 0; len < i;) { 1511 do { 1512 n = write(fileno(stdout), buf + len, i - len); 1513 } while (n == -1 && errno == EINTR); 1514 1515 if (n < 0) { 1516 BIO_printf(bio_s_out, "ERROR\n"); 1517 goto err; 1518 } 1519 len += n; 1520 } 1521 } 1522 if (SSL_pending(con)) 1523 goto again; 1524 break; 1525 case SSL_ERROR_WANT_WRITE: 1526 case SSL_ERROR_WANT_READ: 1527 BIO_printf(bio_s_out, "Read BLOCK\n"); 1528 break; 1529 case SSL_ERROR_SYSCALL: 1530 case SSL_ERROR_SSL: 1531 BIO_printf(bio_s_out, "ERROR\n"); 1532 ERR_print_errors(bio_err); 1533 ret = 1; 1534 goto err; 1535 case SSL_ERROR_ZERO_RETURN: 1536 BIO_printf(bio_s_out, "DONE\n"); 1537 ret = 1; 1538 goto err; 1539 } 1540 } 1541 } 1542 } 1543 err: 1544 if (con != NULL) { 1545 BIO_printf(bio_s_out, "shutting down SSL\n"); 1546 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 1547 SSL_free(con); 1548 } 1549 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 1550 freezero(buf, bufsize); 1551 if (ret >= 0) 1552 BIO_printf(bio_s_out, "ACCEPT\n"); 1553 return (ret); 1554 } 1555 1556 static void 1557 close_accept_socket(void) 1558 { 1559 BIO_printf(bio_err, "shutdown accept socket\n"); 1560 if (accept_socket >= 0) { 1561 shutdown(accept_socket, SHUT_RDWR); 1562 close(accept_socket); 1563 } 1564 } 1565 1566 static int 1567 init_ssl_connection(SSL * con) 1568 { 1569 int i; 1570 const char *str; 1571 X509 *peer; 1572 long verify_error; 1573 char buf[BUFSIZ]; 1574 unsigned char *exportedkeymat; 1575 1576 i = SSL_accept(con); 1577 if (i <= 0) { 1578 if (BIO_sock_should_retry(i)) { 1579 BIO_printf(bio_s_out, "DELAY\n"); 1580 return (1); 1581 } 1582 BIO_printf(bio_err, "ERROR\n"); 1583 verify_error = SSL_get_verify_result(con); 1584 if (verify_error != X509_V_OK) { 1585 BIO_printf(bio_err, "verify error:%s\n", 1586 X509_verify_cert_error_string(verify_error)); 1587 } else 1588 ERR_print_errors(bio_err); 1589 return (0); 1590 } 1591 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 1592 1593 peer = SSL_get_peer_certificate(con); 1594 if (peer != NULL) { 1595 BIO_printf(bio_s_out, "Client certificate\n"); 1596 PEM_write_bio_X509(bio_s_out, peer); 1597 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 1598 BIO_printf(bio_s_out, "subject=%s\n", buf); 1599 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 1600 BIO_printf(bio_s_out, "issuer=%s\n", buf); 1601 X509_free(peer); 1602 } 1603 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL) 1604 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 1605 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 1606 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 1607 1608 #ifndef OPENSSL_NO_SRTP 1609 { 1610 SRTP_PROTECTION_PROFILE *srtp_profile 1611 = SSL_get_selected_srtp_profile(con); 1612 1613 if (srtp_profile) 1614 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", 1615 srtp_profile->name); 1616 } 1617 #endif 1618 if (SSL_cache_hit(con)) 1619 BIO_printf(bio_s_out, "Reused session-id\n"); 1620 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", 1621 SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); 1622 if (keymatexportlabel != NULL) { 1623 BIO_printf(bio_s_out, "Keying material exporter:\n"); 1624 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); 1625 BIO_printf(bio_s_out, " Length: %i bytes\n", 1626 keymatexportlen); 1627 exportedkeymat = malloc(keymatexportlen); 1628 if (exportedkeymat != NULL) { 1629 if (!SSL_export_keying_material(con, exportedkeymat, 1630 keymatexportlen, 1631 keymatexportlabel, 1632 strlen(keymatexportlabel), 1633 NULL, 0, 0)) { 1634 BIO_printf(bio_s_out, " Error\n"); 1635 } else { 1636 BIO_printf(bio_s_out, " Keying material: "); 1637 for (i = 0; i < keymatexportlen; i++) 1638 BIO_printf(bio_s_out, "%02X", 1639 exportedkeymat[i]); 1640 BIO_printf(bio_s_out, "\n"); 1641 } 1642 free(exportedkeymat); 1643 } 1644 } 1645 return (1); 1646 } 1647 1648 #ifndef OPENSSL_NO_DH 1649 static DH * 1650 load_dh_param(const char *dhfile) 1651 { 1652 DH *ret = NULL; 1653 BIO *bio; 1654 1655 if ((bio = BIO_new_file(dhfile, "r")) == NULL) 1656 goto err; 1657 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); 1658 err: 1659 BIO_free(bio); 1660 return (ret); 1661 } 1662 #endif 1663 1664 static int 1665 www_body(char *hostname, int s, unsigned char *context) 1666 { 1667 char *buf = NULL; 1668 int ret = 1; 1669 int i, j, k, dot; 1670 SSL *con; 1671 const SSL_CIPHER *c; 1672 BIO *io, *ssl_bio, *sbio; 1673 1674 buf = malloc(bufsize); 1675 if (buf == NULL) 1676 return (0); 1677 io = BIO_new(BIO_f_buffer()); 1678 ssl_bio = BIO_new(BIO_f_ssl()); 1679 if ((io == NULL) || (ssl_bio == NULL)) 1680 goto err; 1681 1682 if (s_nbio) { 1683 if (!s_quiet) 1684 BIO_printf(bio_err, "turning on non blocking io\n"); 1685 if (!BIO_socket_nbio(s, 1)) 1686 ERR_print_errors(bio_err); 1687 } 1688 1689 /* lets make the output buffer a reasonable size */ 1690 if (!BIO_set_write_buffer_size(io, bufsize)) 1691 goto err; 1692 1693 if ((con = SSL_new(ctx)) == NULL) 1694 goto err; 1695 if (s_tlsextdebug) { 1696 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1697 SSL_set_tlsext_debug_arg(con, bio_s_out); 1698 } 1699 if (context) 1700 SSL_set_session_id_context(con, context, 1701 strlen((char *) context)); 1702 1703 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1704 if (s_nbio_test) { 1705 BIO *test; 1706 1707 test = BIO_new(BIO_f_nbio_test()); 1708 sbio = BIO_push(test, sbio); 1709 } 1710 SSL_set_bio(con, sbio, sbio); 1711 SSL_set_accept_state(con); 1712 1713 /* SSL_set_fd(con,s); */ 1714 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 1715 BIO_push(io, ssl_bio); 1716 1717 if (s_debug) { 1718 SSL_set_debug(con, 1); 1719 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1720 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1721 } 1722 if (s_msg) { 1723 SSL_set_msg_callback(con, msg_cb); 1724 SSL_set_msg_callback_arg(con, bio_s_out); 1725 } 1726 for (;;) { 1727 i = BIO_gets(io, buf, bufsize - 1); 1728 if (i < 0) { /* error */ 1729 if (!BIO_should_retry(io)) { 1730 if (!s_quiet) 1731 ERR_print_errors(bio_err); 1732 goto err; 1733 } else { 1734 BIO_printf(bio_s_out, "read R BLOCK\n"); 1735 sleep(1); 1736 continue; 1737 } 1738 } else if (i == 0) { /* end of input */ 1739 ret = 1; 1740 goto end; 1741 } 1742 /* else we have data */ 1743 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || 1744 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { 1745 char *p; 1746 X509 *peer; 1747 STACK_OF(SSL_CIPHER) * sk; 1748 static const char *space = " "; 1749 1750 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1751 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 1752 BIO_puts(io, "<pre>\n"); 1753 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/ 1754 BIO_puts(io, "\n"); 1755 for (i = 0; i < local_argc; i++) { 1756 BIO_puts(io, local_argv[i]); 1757 BIO_write(io, " ", 1); 1758 } 1759 BIO_puts(io, "\n"); 1760 1761 BIO_printf(io, 1762 "Secure Renegotiation IS%s supported\n", 1763 SSL_get_secure_renegotiation_support(con) ? 1764 "" : " NOT"); 1765 1766 /* 1767 * The following is evil and should not really be 1768 * done 1769 */ 1770 BIO_printf(io, "Ciphers supported in s_server binary\n"); 1771 sk = SSL_get_ciphers(con); 1772 j = sk_SSL_CIPHER_num(sk); 1773 for (i = 0; i < j; i++) { 1774 c = sk_SSL_CIPHER_value(sk, i); 1775 BIO_printf(io, "%-11s:%-25s", 1776 SSL_CIPHER_get_version(c), 1777 SSL_CIPHER_get_name(c)); 1778 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 1779 BIO_puts(io, "\n"); 1780 } 1781 BIO_puts(io, "\n"); 1782 p = SSL_get_shared_ciphers(con, buf, bufsize); 1783 if (p != NULL) { 1784 BIO_printf(io, "---\nCiphers common between both SSL end points:\n"); 1785 j = i = 0; 1786 while (*p) { 1787 if (*p == ':') { 1788 BIO_write(io, space, 26 - j); 1789 i++; 1790 j = 0; 1791 BIO_write(io, ((i % 3) ? " " : "\n"), 1); 1792 } else { 1793 BIO_write(io, p, 1); 1794 j++; 1795 } 1796 p++; 1797 } 1798 BIO_puts(io, "\n"); 1799 } 1800 BIO_printf(io, (SSL_cache_hit(con) 1801 ? "---\nReused, " 1802 : "---\nNew, ")); 1803 c = SSL_get_current_cipher(con); 1804 BIO_printf(io, "%s, Cipher is %s\n", 1805 SSL_CIPHER_get_version(c), 1806 SSL_CIPHER_get_name(c)); 1807 SSL_SESSION_print(io, SSL_get_session(con)); 1808 BIO_printf(io, "---\n"); 1809 print_stats(io, SSL_get_SSL_CTX(con)); 1810 BIO_printf(io, "---\n"); 1811 peer = SSL_get_peer_certificate(con); 1812 if (peer != NULL) { 1813 BIO_printf(io, "Client certificate\n"); 1814 X509_print(io, peer); 1815 PEM_write_bio_X509(io, peer); 1816 } else 1817 BIO_puts(io, "no client certificate available\n"); 1818 BIO_puts(io, "</BODY></HTML>\r\n\r\n"); 1819 break; 1820 } else if ((www == 2 || www == 3) 1821 && (strncmp("GET /", buf, 5) == 0)) { 1822 BIO *file; 1823 char *p, *e; 1824 static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 1825 1826 /* skip the '/' */ 1827 p = &(buf[5]); 1828 1829 dot = 1; 1830 for (e = p; *e != '\0'; e++) { 1831 if (e[0] == ' ') 1832 break; 1833 1834 switch (dot) { 1835 case 1: 1836 dot = (e[0] == '.') ? 2 : 0; 1837 break; 1838 case 2: 1839 dot = (e[0] == '.') ? 3 : 0; 1840 break; 1841 case 3: 1842 dot = (e[0] == '/') ? -1 : 0; 1843 break; 1844 } 1845 if (dot == 0) 1846 dot = (e[0] == '/') ? 1 : 0; 1847 } 1848 dot = (dot == 3) || (dot == -1); /* filename contains 1849 * ".." component */ 1850 1851 if (*e == '\0') { 1852 BIO_puts(io, text); 1853 BIO_printf(io, "'%s' is an invalid file name\r\n", p); 1854 break; 1855 } 1856 *e = '\0'; 1857 1858 if (dot) { 1859 BIO_puts(io, text); 1860 BIO_printf(io, "'%s' contains '..' reference\r\n", p); 1861 break; 1862 } 1863 if (*p == '/') { 1864 BIO_puts(io, text); 1865 BIO_printf(io, "'%s' is an invalid path\r\n", p); 1866 break; 1867 } 1868 /* if a directory, do the index thang */ 1869 if (app_isdir(p) > 0) { 1870 BIO_puts(io, text); 1871 BIO_printf(io, "'%s' is a directory\r\n", p); 1872 break; 1873 } 1874 if ((file = BIO_new_file(p, "r")) == NULL) { 1875 BIO_puts(io, text); 1876 BIO_printf(io, "Error opening '%s'\r\n", p); 1877 ERR_print_errors(io); 1878 break; 1879 } 1880 if (!s_quiet) 1881 BIO_printf(bio_err, "FILE:%s\n", p); 1882 1883 if (www == 2) { 1884 i = strlen(p); 1885 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 1886 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 1887 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 1888 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1889 else 1890 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 1891 } 1892 /* send the file */ 1893 for (;;) { 1894 i = BIO_read(file, buf, bufsize); 1895 if (i <= 0) 1896 break; 1897 1898 #ifdef RENEG 1899 total_bytes += i; 1900 fprintf(stderr, "%d\n", i); 1901 if (total_bytes > 3 * 1024) { 1902 total_bytes = 0; 1903 fprintf(stderr, "RENEGOTIATE\n"); 1904 SSL_renegotiate(con); 1905 } 1906 #endif 1907 1908 for (j = 0; j < i;) { 1909 #ifdef RENEG 1910 { 1911 static count = 0; 1912 if (++count == 13) { 1913 SSL_renegotiate(con); 1914 } 1915 } 1916 #endif 1917 k = BIO_write(io, &(buf[j]), i - j); 1918 if (k <= 0) { 1919 if (!BIO_should_retry(io)) 1920 goto write_error; 1921 else { 1922 BIO_printf(bio_s_out, "rwrite W BLOCK\n"); 1923 } 1924 } else { 1925 j += k; 1926 } 1927 } 1928 } 1929 write_error: 1930 BIO_free(file); 1931 break; 1932 } 1933 } 1934 1935 for (;;) { 1936 i = (int) BIO_flush(io); 1937 if (i <= 0) { 1938 if (!BIO_should_retry(io)) 1939 break; 1940 } else 1941 break; 1942 } 1943 end: 1944 /* make sure we re-use sessions */ 1945 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 1946 1947 err: 1948 1949 if (ret >= 0) 1950 BIO_printf(bio_s_out, "ACCEPT\n"); 1951 1952 free(buf); 1953 BIO_free_all(io); 1954 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/ 1955 return (ret); 1956 } 1957 1958 #define MAX_SESSION_ID_ATTEMPTS 10 1959 static int 1960 generate_session_id(const SSL * ssl, unsigned char *id, 1961 unsigned int *id_len) 1962 { 1963 unsigned int count = 0; 1964 do { 1965 arc4random_buf(id, *id_len); 1966 /* 1967 * Prefix the session_id with the required prefix. NB: If our 1968 * prefix is too long, clip it - but there will be worse 1969 * effects anyway, eg. the server could only possibly create 1970 * 1 session ID (ie. the prefix!) so all future session 1971 * negotiations will fail due to conflicts. 1972 */ 1973 memcpy(id, session_id_prefix, 1974 (strlen(session_id_prefix) < *id_len) ? 1975 strlen(session_id_prefix) : *id_len); 1976 } 1977 while (SSL_has_matching_session_id(ssl, id, *id_len) && 1978 (++count < MAX_SESSION_ID_ATTEMPTS)); 1979 if (count >= MAX_SESSION_ID_ATTEMPTS) 1980 return 0; 1981 return 1; 1982 } 1983