1 /* $OpenBSD: s_server.c,v 1.38 2020/05/23 13:00:30 tb 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_3 - Just talk TLSv1.3\n"); 304 BIO_printf(bio_err, " -tls1_2 - Just talk TLSv1.2\n"); 305 BIO_printf(bio_err, " -tls1_1 - Just talk TLSv1.1\n"); 306 BIO_printf(bio_err, " -tls1 - Just talk TLSv1\n"); 307 BIO_printf(bio_err, " -dtls1 - Just talk DTLSv1\n"); 308 BIO_printf(bio_err, " -timeout - Enable timeouts\n"); 309 BIO_printf(bio_err, " -mtu - Set link layer MTU\n"); 310 BIO_printf(bio_err, " -chain - Read a certificate chain\n"); 311 BIO_printf(bio_err, " -no_ssl2 - Just disable SSLv2\n"); 312 BIO_printf(bio_err, " -no_ssl3 - Just disable SSLv3\n"); 313 BIO_printf(bio_err, " -no_tls1 - Just disable TLSv1\n"); 314 BIO_printf(bio_err, " -no_tls1_1 - Just disable TLSv1.1\n"); 315 BIO_printf(bio_err, " -no_tls1_2 - Just disable TLSv1.2\n"); 316 BIO_printf(bio_err, " -no_tls1_3 - Just disable TLSv1.3\n"); 317 #ifndef OPENSSL_NO_DH 318 BIO_printf(bio_err, " -no_dhe - Disable ephemeral DH\n"); 319 #endif 320 BIO_printf(bio_err, " -no_ecdhe - Disable ephemeral ECDH\n"); 321 BIO_printf(bio_err, " -bugs - Turn on SSL bug compatibility\n"); 322 BIO_printf(bio_err, " -www - Respond to a 'GET /' with a status page\n"); 323 BIO_printf(bio_err, " -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); 324 BIO_printf(bio_err, " -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); 325 BIO_printf(bio_err, " with the assumption it contains a complete HTTP response.\n"); 326 BIO_printf(bio_err, " -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n"); 327 BIO_printf(bio_err, " -servername host - servername for HostName TLS extension\n"); 328 BIO_printf(bio_err, " -servername_fatal - on mismatch send fatal alert (default warning alert)\n"); 329 BIO_printf(bio_err, " -cert2 arg - certificate file to use for servername\n"); 330 BIO_printf(bio_err, " (default is %s)\n", TEST_CERT2); 331 BIO_printf(bio_err, " -key2 arg - Private Key file to use for servername, in cert file if\n"); 332 BIO_printf(bio_err, " not specified (default is %s)\n", TEST_CERT2); 333 BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n"); 334 BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n"); 335 BIO_printf(bio_err, " -alpn arg - set the advertised protocols for the ALPN extension (comma-separated list)\n"); 336 BIO_printf(bio_err, " -groups arg - specify EC groups (colon-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 const char *groups_in = NULL; 585 tlsextalpnctx alpn_ctx = { NULL, 0 }; 586 uint16_t min_version = 0, max_version = 0; 587 588 if (single_execution) { 589 if (pledge("stdio rpath inet dns tty", NULL) == -1) { 590 perror("pledge"); 591 exit(1); 592 } 593 } 594 595 meth = TLS_server_method(); 596 597 local_argc = argc; 598 local_argv = argv; 599 600 s_server_init(); 601 602 verify_depth = 0; 603 s_nbio = 0; 604 s_nbio_test = 0; 605 606 argc--; 607 argv++; 608 609 while (argc >= 1) { 610 if ((strcmp(*argv, "-port") == 0) || 611 (strcmp(*argv, "-accept") == 0)) { 612 if (--argc < 1) 613 goto bad; 614 if (!extract_port(*(++argv), &port)) 615 goto bad; 616 } else if (strcmp(*argv, "-verify") == 0) { 617 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; 618 if (--argc < 1) 619 goto bad; 620 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 621 if (errstr) 622 goto bad; 623 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 624 } else if (strcmp(*argv, "-Verify") == 0) { 625 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | 626 SSL_VERIFY_CLIENT_ONCE; 627 if (--argc < 1) 628 goto bad; 629 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 630 if (errstr) 631 goto bad; 632 BIO_printf(bio_err, "verify depth is %d, must return a certificate\n", verify_depth); 633 } else if (strcmp(*argv, "-context") == 0) { 634 if (--argc < 1) 635 goto bad; 636 context = (unsigned char *) *(++argv); 637 } else if (strcmp(*argv, "-cert") == 0) { 638 if (--argc < 1) 639 goto bad; 640 s_cert_file = *(++argv); 641 } else if (strcmp(*argv, "-certform") == 0) { 642 if (--argc < 1) 643 goto bad; 644 s_cert_format = str2fmt(*(++argv)); 645 } else if (strcmp(*argv, "-key") == 0) { 646 if (--argc < 1) 647 goto bad; 648 s_key_file = *(++argv); 649 } else if (strcmp(*argv, "-keyform") == 0) { 650 if (--argc < 1) 651 goto bad; 652 s_key_format = str2fmt(*(++argv)); 653 } else if (strcmp(*argv, "-pass") == 0) { 654 if (--argc < 1) 655 goto bad; 656 passarg = *(++argv); 657 } else if (strcmp(*argv, "-dhparam") == 0) { 658 if (--argc < 1) 659 goto bad; 660 dhfile = *(++argv); 661 } else if (strcmp(*argv, "-named_curve") == 0) { 662 if (--argc < 1) 663 goto bad; 664 named_curve = *(++argv); 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_tls1_3") == 0) { 781 off |= SSL_OP_NO_TLSv1_3; 782 } else if (strcmp(*argv, "-no_comp") == 0) { 783 off |= SSL_OP_NO_COMPRESSION; 784 } else if (strcmp(*argv, "-no_ticket") == 0) { 785 off |= SSL_OP_NO_TICKET; 786 } else if (strcmp(*argv, "-tls1") == 0) { 787 min_version = TLS1_VERSION; 788 max_version = TLS1_VERSION; 789 } else if (strcmp(*argv, "-tls1_1") == 0) { 790 min_version = TLS1_1_VERSION; 791 max_version = TLS1_1_VERSION; 792 } else if (strcmp(*argv, "-tls1_2") == 0) { 793 min_version = TLS1_2_VERSION; 794 max_version = TLS1_2_VERSION; 795 } else if (strcmp(*argv, "-tls1_3") == 0) { 796 min_version = TLS1_3_VERSION; 797 max_version = TLS1_3_VERSION; 798 } 799 #ifndef OPENSSL_NO_DTLS1 800 else if (strcmp(*argv, "-dtls1") == 0) { 801 meth = DTLS_server_method(); 802 socket_type = SOCK_DGRAM; 803 } else if (strcmp(*argv, "-timeout") == 0) 804 enable_timeouts = 1; 805 else if (strcmp(*argv, "-mtu") == 0) { 806 if (--argc < 1) 807 goto bad; 808 socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr); 809 if (errstr) 810 goto bad; 811 } else if (strcmp(*argv, "-chain") == 0) 812 cert_chain = 1; 813 #endif 814 else if (strcmp(*argv, "-id_prefix") == 0) { 815 if (--argc < 1) 816 goto bad; 817 session_id_prefix = *(++argv); 818 } 819 else if (strcmp(*argv, "-servername") == 0) { 820 if (--argc < 1) 821 goto bad; 822 tlsextcbp.servername = *(++argv); 823 } else if (strcmp(*argv, "-servername_fatal") == 0) { 824 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; 825 } else if (strcmp(*argv, "-cert2") == 0) { 826 if (--argc < 1) 827 goto bad; 828 s_cert_file2 = *(++argv); 829 } else if (strcmp(*argv, "-key2") == 0) { 830 if (--argc < 1) 831 goto bad; 832 s_key_file2 = *(++argv); 833 } else if (strcmp(*argv, "-nextprotoneg") == 0) { 834 /* Ignored. */ 835 if (--argc < 1) 836 goto bad; 837 ++argv; 838 } else if (strcmp(*argv,"-alpn") == 0) { 839 if (--argc < 1) 840 goto bad; 841 alpn_in = *(++argv); 842 } else if (strcmp(*argv, "-groups") == 0) { 843 if (--argc < 1) 844 goto bad; 845 groups_in = *(++argv); 846 } 847 #ifndef OPENSSL_NO_SRTP 848 else if (strcmp(*argv, "-use_srtp") == 0) { 849 if (--argc < 1) 850 goto bad; 851 srtp_profiles = *(++argv); 852 } 853 #endif 854 else if (strcmp(*argv, "-keymatexport") == 0) { 855 if (--argc < 1) 856 goto bad; 857 keymatexportlabel = *(++argv); 858 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 859 if (--argc < 1) 860 goto bad; 861 keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr); 862 if (errstr) 863 goto bad; 864 } else { 865 BIO_printf(bio_err, "unknown option %s\n", *argv); 866 badop = 1; 867 break; 868 } 869 argc--; 870 argv++; 871 } 872 if (badop) { 873 bad: 874 if (errstr) 875 BIO_printf(bio_err, "invalid argument %s: %s\n", 876 *argv, errstr); 877 else 878 sv_usage(); 879 goto end; 880 } 881 882 if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) { 883 BIO_printf(bio_err, "Error getting password\n"); 884 goto end; 885 } 886 if (s_key_file == NULL) 887 s_key_file = s_cert_file; 888 if (s_key_file2 == NULL) 889 s_key_file2 = s_cert_file2; 890 891 if (nocert == 0) { 892 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, 893 "server certificate private key file"); 894 if (!s_key) { 895 ERR_print_errors(bio_err); 896 goto end; 897 } 898 s_cert = load_cert(bio_err, s_cert_file, s_cert_format, 899 NULL, "server certificate file"); 900 901 if (!s_cert) { 902 ERR_print_errors(bio_err); 903 goto end; 904 } 905 if (tlsextcbp.servername) { 906 s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, 907 "second server certificate private key file"); 908 if (!s_key2) { 909 ERR_print_errors(bio_err); 910 goto end; 911 } 912 s_cert2 = load_cert(bio_err, s_cert_file2, s_cert_format, 913 NULL, "second server certificate file"); 914 915 if (!s_cert2) { 916 ERR_print_errors(bio_err); 917 goto end; 918 } 919 } 920 } 921 alpn_ctx.data = NULL; 922 if (alpn_in) { 923 unsigned short len; 924 alpn_ctx.data = next_protos_parse(&len, alpn_in); 925 if (alpn_ctx.data == NULL) 926 goto end; 927 alpn_ctx.len = len; 928 } 929 930 if (s_dcert_file) { 931 932 if (s_dkey_file == NULL) 933 s_dkey_file = s_dcert_file; 934 935 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format, 936 0, dpass, "second certificate private key file"); 937 if (!s_dkey) { 938 ERR_print_errors(bio_err); 939 goto end; 940 } 941 s_dcert = load_cert(bio_err, s_dcert_file, s_dcert_format, 942 NULL, "second server certificate file"); 943 944 if (!s_dcert) { 945 ERR_print_errors(bio_err); 946 goto end; 947 } 948 } 949 if (bio_s_out == NULL) { 950 if (s_quiet && !s_debug && !s_msg) { 951 bio_s_out = BIO_new(BIO_s_null()); 952 } else { 953 if (bio_s_out == NULL) 954 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE); 955 } 956 } 957 if (nocert) { 958 s_cert_file = NULL; 959 s_key_file = NULL; 960 s_dcert_file = NULL; 961 s_dkey_file = NULL; 962 s_cert_file2 = NULL; 963 s_key_file2 = NULL; 964 } 965 ctx = SSL_CTX_new(meth); 966 if (ctx == NULL) { 967 ERR_print_errors(bio_err); 968 goto end; 969 } 970 971 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 972 973 if (!SSL_CTX_set_min_proto_version(ctx, min_version)) 974 goto end; 975 if (!SSL_CTX_set_max_proto_version(ctx, max_version)) 976 goto end; 977 978 if (session_id_prefix) { 979 if (strlen(session_id_prefix) >= 32) 980 BIO_printf(bio_err, 981 "warning: id_prefix is too long, only one new session will be possible\n"); 982 else if (strlen(session_id_prefix) >= 16) 983 BIO_printf(bio_err, 984 "warning: id_prefix is too long if you use SSLv2\n"); 985 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 986 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 987 ERR_print_errors(bio_err); 988 goto end; 989 } 990 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 991 } 992 SSL_CTX_set_quiet_shutdown(ctx, 1); 993 if (bugs) 994 SSL_CTX_set_options(ctx, SSL_OP_ALL); 995 SSL_CTX_set_options(ctx, off); 996 /* 997 * DTLS: partial reads end up discarding unread UDP bytes :-( Setting 998 * read ahead solves this problem. 999 */ 1000 if (socket_type == SOCK_DGRAM) 1001 SSL_CTX_set_read_ahead(ctx, 1); 1002 1003 if (state) 1004 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1005 if (no_cache) 1006 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 1007 else 1008 SSL_CTX_sess_set_cache_size(ctx, 128); 1009 1010 #ifndef OPENSSL_NO_SRTP 1011 if (srtp_profiles != NULL) 1012 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 1013 #endif 1014 1015 1016 if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) || 1017 (!SSL_CTX_set_default_verify_paths(ctx))) { 1018 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */ 1019 ERR_print_errors(bio_err); 1020 /* goto end; */ 1021 } 1022 if (vpm) 1023 SSL_CTX_set1_param(ctx, vpm); 1024 1025 if (s_cert2) { 1026 ctx2 = SSL_CTX_new(meth); 1027 if (ctx2 == NULL) { 1028 ERR_print_errors(bio_err); 1029 goto end; 1030 } 1031 1032 if (!SSL_CTX_set_min_proto_version(ctx2, min_version)) 1033 goto end; 1034 if (!SSL_CTX_set_max_proto_version(ctx2, max_version)) 1035 goto end; 1036 SSL_CTX_clear_mode(ctx2, SSL_MODE_AUTO_RETRY); 1037 } 1038 if (ctx2) { 1039 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 1040 1041 if (session_id_prefix) { 1042 if (strlen(session_id_prefix) >= 32) 1043 BIO_printf(bio_err, 1044 "warning: id_prefix is too long, only one new session will be possible\n"); 1045 else if (strlen(session_id_prefix) >= 16) 1046 BIO_printf(bio_err, 1047 "warning: id_prefix is too long if you use SSLv2\n"); 1048 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { 1049 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1050 ERR_print_errors(bio_err); 1051 goto end; 1052 } 1053 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1054 } 1055 SSL_CTX_set_quiet_shutdown(ctx2, 1); 1056 if (bugs) 1057 SSL_CTX_set_options(ctx2, SSL_OP_ALL); 1058 SSL_CTX_set_options(ctx2, off); 1059 /* 1060 * DTLS: partial reads end up discarding unread UDP bytes :-( 1061 * Setting read ahead solves this problem. 1062 */ 1063 if (socket_type == SOCK_DGRAM) 1064 SSL_CTX_set_read_ahead(ctx2, 1); 1065 1066 if (state) 1067 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 1068 1069 if (no_cache) 1070 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 1071 else 1072 SSL_CTX_sess_set_cache_size(ctx2, 128); 1073 1074 if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) || 1075 (!SSL_CTX_set_default_verify_paths(ctx2))) { 1076 ERR_print_errors(bio_err); 1077 } 1078 if (vpm) 1079 SSL_CTX_set1_param(ctx2, vpm); 1080 } 1081 if (alpn_ctx.data) 1082 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 1083 1084 if (groups_in != NULL) { 1085 if (SSL_CTX_set1_groups_list(ctx, groups_in) != 1) { 1086 BIO_printf(bio_err, "Failed to set groups '%s'\n", 1087 groups_in); 1088 goto end; 1089 } 1090 } 1091 1092 #ifndef OPENSSL_NO_DH 1093 if (!no_dhe) { 1094 DH *dh = NULL; 1095 1096 if (dhfile) 1097 dh = load_dh_param(dhfile); 1098 else if (s_cert_file) 1099 dh = load_dh_param(s_cert_file); 1100 1101 if (dh != NULL) 1102 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1103 else 1104 BIO_printf(bio_s_out, "Using auto DH parameters\n"); 1105 (void) BIO_flush(bio_s_out); 1106 1107 if (dh == NULL) 1108 SSL_CTX_set_dh_auto(ctx, 1); 1109 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { 1110 BIO_printf(bio_err, 1111 "Error setting temp DH parameters\n"); 1112 ERR_print_errors(bio_err); 1113 DH_free(dh); 1114 goto end; 1115 } 1116 1117 if (ctx2) { 1118 if (!dhfile) { 1119 DH *dh2 = NULL; 1120 1121 if (s_cert_file2 != NULL) 1122 dh2 = load_dh_param(s_cert_file2); 1123 if (dh2 != NULL) { 1124 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1125 (void) BIO_flush(bio_s_out); 1126 1127 DH_free(dh); 1128 dh = dh2; 1129 } 1130 } 1131 if (dh == NULL) 1132 SSL_CTX_set_dh_auto(ctx2, 1); 1133 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { 1134 BIO_printf(bio_err, 1135 "Error setting temp DH parameters\n"); 1136 ERR_print_errors(bio_err); 1137 DH_free(dh); 1138 goto end; 1139 } 1140 } 1141 DH_free(dh); 1142 } 1143 #endif 1144 1145 if (!no_ecdhe && named_curve != NULL) { 1146 EC_KEY *ecdh = NULL; 1147 int nid; 1148 1149 if ((nid = OBJ_sn2nid(named_curve)) == 0) { 1150 BIO_printf(bio_err, "unknown curve name (%s)\n", 1151 named_curve); 1152 goto end; 1153 } 1154 if ((ecdh = EC_KEY_new_by_curve_name(nid)) == NULL) { 1155 BIO_printf(bio_err, "unable to create curve (%s)\n", 1156 named_curve); 1157 goto end; 1158 } 1159 BIO_printf(bio_s_out, "Setting temp ECDH parameters\n"); 1160 (void) BIO_flush(bio_s_out); 1161 1162 SSL_CTX_set_tmp_ecdh(ctx, ecdh); 1163 if (ctx2) 1164 SSL_CTX_set_tmp_ecdh(ctx2, ecdh); 1165 EC_KEY_free(ecdh); 1166 } 1167 1168 if (!set_cert_key_stuff(ctx, s_cert, s_key)) 1169 goto end; 1170 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2)) 1171 goto end; 1172 if (s_dcert != NULL) { 1173 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey)) 1174 goto end; 1175 } 1176 1177 if (cipher != NULL) { 1178 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 1179 BIO_printf(bio_err, "error setting cipher list\n"); 1180 ERR_print_errors(bio_err); 1181 goto end; 1182 } 1183 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2, cipher)) { 1184 BIO_printf(bio_err, "error setting cipher list\n"); 1185 ERR_print_errors(bio_err); 1186 goto end; 1187 } 1188 } 1189 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); 1190 SSL_CTX_set_session_id_context(ctx, (void *) &s_server_session_id_context, 1191 sizeof s_server_session_id_context); 1192 1193 /* Set DTLS cookie generation and verification callbacks */ 1194 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 1195 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 1196 1197 if (ctx2) { 1198 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); 1199 SSL_CTX_set_session_id_context(ctx2, (void *) &s_server_session_id_context, 1200 sizeof s_server_session_id_context); 1201 1202 tlsextcbp.biodebug = bio_s_out; 1203 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 1204 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); 1205 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1206 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1207 } 1208 1209 if (CAfile != NULL) { 1210 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); 1211 if (ctx2) 1212 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); 1213 } 1214 BIO_printf(bio_s_out, "ACCEPT\n"); 1215 (void) BIO_flush(bio_s_out); 1216 if (www) 1217 do_server(port, socket_type, &accept_socket, www_body, context); 1218 else 1219 do_server(port, socket_type, &accept_socket, sv_body, context); 1220 print_stats(bio_s_out, ctx); 1221 ret = 0; 1222 end: 1223 SSL_CTX_free(ctx); 1224 X509_free(s_cert); 1225 X509_free(s_dcert); 1226 EVP_PKEY_free(s_key); 1227 EVP_PKEY_free(s_dkey); 1228 free(pass); 1229 free(dpass); 1230 X509_VERIFY_PARAM_free(vpm); 1231 free(tlscstatp.host); 1232 free(tlscstatp.port); 1233 free(tlscstatp.path); 1234 SSL_CTX_free(ctx2); 1235 X509_free(s_cert2); 1236 EVP_PKEY_free(s_key2); 1237 free(alpn_ctx.data); 1238 if (bio_s_out != NULL) { 1239 BIO_free(bio_s_out); 1240 bio_s_out = NULL; 1241 } 1242 1243 return (ret); 1244 } 1245 1246 static void 1247 print_stats(BIO * bio, SSL_CTX * ssl_ctx) 1248 { 1249 BIO_printf(bio, "%4ld items in the session cache\n", 1250 SSL_CTX_sess_number(ssl_ctx)); 1251 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 1252 SSL_CTX_sess_connect(ssl_ctx)); 1253 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 1254 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 1255 BIO_printf(bio, "%4ld client connects that finished\n", 1256 SSL_CTX_sess_connect_good(ssl_ctx)); 1257 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 1258 SSL_CTX_sess_accept(ssl_ctx)); 1259 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 1260 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 1261 BIO_printf(bio, "%4ld server accepts that finished\n", 1262 SSL_CTX_sess_accept_good(ssl_ctx)); 1263 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); 1264 BIO_printf(bio, "%4ld session cache misses\n", SSL_CTX_sess_misses(ssl_ctx)); 1265 BIO_printf(bio, "%4ld session cache timeouts\n", SSL_CTX_sess_timeouts(ssl_ctx)); 1266 BIO_printf(bio, "%4ld callback cache hits\n", SSL_CTX_sess_cb_hits(ssl_ctx)); 1267 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 1268 SSL_CTX_sess_cache_full(ssl_ctx), 1269 SSL_CTX_sess_get_cache_size(ssl_ctx)); 1270 } 1271 1272 static int 1273 sv_body(char *hostname, int s, unsigned char *context) 1274 { 1275 char *buf = NULL; 1276 int ret = 1; 1277 int k, i; 1278 unsigned long l; 1279 SSL *con = NULL; 1280 BIO *sbio; 1281 struct timeval timeout; 1282 1283 if ((buf = malloc(bufsize)) == NULL) { 1284 BIO_printf(bio_err, "out of memory\n"); 1285 goto err; 1286 } 1287 if (s_nbio) { 1288 if (!s_quiet) 1289 BIO_printf(bio_err, "turning on non blocking io\n"); 1290 if (!BIO_socket_nbio(s, 1)) 1291 ERR_print_errors(bio_err); 1292 } 1293 1294 if (con == NULL) { 1295 con = SSL_new(ctx); 1296 if (s_tlsextdebug) { 1297 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1298 SSL_set_tlsext_debug_arg(con, bio_s_out); 1299 } 1300 if (s_tlsextstatus) { 1301 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 1302 tlscstatp.err = bio_err; 1303 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); 1304 } 1305 if (context) 1306 SSL_set_session_id_context(con, context, 1307 strlen((char *) context)); 1308 } 1309 SSL_clear(con); 1310 1311 if (SSL_version(con) == DTLS1_VERSION) { 1312 1313 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1314 1315 if (enable_timeouts) { 1316 timeout.tv_sec = 0; 1317 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1318 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1319 1320 timeout.tv_sec = 0; 1321 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1322 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1323 } 1324 if (socket_mtu > 28) { 1325 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1326 SSL_set_mtu(con, socket_mtu - 28); 1327 } else 1328 /* want to do MTU discovery */ 1329 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1330 1331 /* turn on cookie exchange */ 1332 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 1333 } else 1334 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1335 1336 if (s_nbio_test) { 1337 BIO *test; 1338 1339 test = BIO_new(BIO_f_nbio_test()); 1340 sbio = BIO_push(test, sbio); 1341 } 1342 1343 SSL_set_bio(con, sbio, sbio); 1344 SSL_set_accept_state(con); 1345 /* SSL_set_fd(con,s); */ 1346 1347 if (s_debug) { 1348 SSL_set_debug(con, 1); 1349 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1350 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1351 } 1352 if (s_msg) { 1353 SSL_set_msg_callback(con, msg_cb); 1354 SSL_set_msg_callback_arg(con, bio_s_out); 1355 } 1356 if (s_tlsextdebug) { 1357 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1358 SSL_set_tlsext_debug_arg(con, bio_s_out); 1359 } 1360 1361 for (;;) { 1362 int read_from_terminal; 1363 int read_from_sslcon; 1364 struct pollfd pfd[2]; 1365 int ptimeout; 1366 1367 read_from_terminal = 0; 1368 read_from_sslcon = SSL_pending(con); 1369 1370 if (!read_from_sslcon) { 1371 pfd[0].fd = fileno(stdin); 1372 pfd[0].events = POLLIN; 1373 pfd[1].fd = s; 1374 pfd[1].events = POLLIN; 1375 1376 if ((SSL_version(con) == DTLS1_VERSION) && 1377 DTLSv1_get_timeout(con, &timeout)) 1378 ptimeout = timeout.tv_sec * 1000 + 1379 timeout.tv_usec / 1000; 1380 else 1381 ptimeout = -1; 1382 1383 i = poll(pfd, 2, ptimeout); 1384 1385 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) { 1386 BIO_printf(bio_err, "TIMEOUT occured\n"); 1387 } 1388 if (i <= 0) 1389 continue; 1390 if (pfd[0].revents) { 1391 if ((pfd[0].revents & (POLLERR|POLLNVAL))) 1392 continue; 1393 read_from_terminal = 1; 1394 } 1395 if (pfd[1].revents) { 1396 if ((pfd[1].revents & (POLLERR|POLLNVAL))) 1397 continue; 1398 read_from_sslcon = 1; 1399 } 1400 } 1401 if (read_from_terminal) { 1402 if (s_crlf) { 1403 int j, lf_num; 1404 1405 i = read(fileno(stdin), buf, bufsize / 2); 1406 lf_num = 0; 1407 /* both loops are skipped when i <= 0 */ 1408 for (j = 0; j < i; j++) 1409 if (buf[j] == '\n') 1410 lf_num++; 1411 for (j = i - 1; j >= 0; j--) { 1412 buf[j + lf_num] = buf[j]; 1413 if (buf[j] == '\n') { 1414 lf_num--; 1415 i++; 1416 buf[j + lf_num] = '\r'; 1417 } 1418 } 1419 assert(lf_num == 0); 1420 } else 1421 i = read(fileno(stdin), buf, bufsize); 1422 if (!s_quiet) { 1423 if ((i <= 0) || (buf[0] == 'Q')) { 1424 BIO_printf(bio_s_out, "DONE\n"); 1425 shutdown(s, SHUT_RD); 1426 close(s); 1427 close_accept_socket(); 1428 ret = -11; 1429 goto err; 1430 } 1431 if ((i <= 0) || (buf[0] == 'q')) { 1432 BIO_printf(bio_s_out, "DONE\n"); 1433 if (SSL_version(con) != DTLS1_VERSION) { 1434 shutdown(s, SHUT_RD); 1435 close(s); 1436 } 1437 /* 1438 * close_accept_socket(); ret= -11; 1439 */ 1440 goto err; 1441 } 1442 if ((buf[0] == 'r') && 1443 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1444 SSL_renegotiate(con); 1445 i = SSL_do_handshake(con); 1446 printf("SSL_do_handshake -> %d\n", i); 1447 i = 0; /* 13; */ 1448 continue; 1449 /* 1450 * RE-NEGOTIATE\n"); 1451 */ 1452 } 1453 if ((buf[0] == 'R') && 1454 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1455 SSL_set_verify(con, 1456 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, NULL); 1457 SSL_renegotiate(con); 1458 i = SSL_do_handshake(con); 1459 printf("SSL_do_handshake -> %d\n", i); 1460 i = 0; /* 13; */ 1461 continue; 1462 /* 1463 * RE-NEGOTIATE asking for client 1464 * cert\n"); 1465 */ 1466 } 1467 if (buf[0] == 'P') { 1468 static const char *str = "Lets print some clear text\n"; 1469 BIO_write(SSL_get_wbio(con), str, strlen(str)); 1470 } 1471 if (buf[0] == 'S') { 1472 print_stats(bio_s_out, SSL_get_SSL_CTX(con)); 1473 } 1474 } 1475 l = k = 0; 1476 for (;;) { 1477 /* should do a select for the write */ 1478 #ifdef RENEG 1479 { 1480 static count = 0; 1481 if (++count == 100) { 1482 count = 0; 1483 SSL_renegotiate(con); 1484 } 1485 } 1486 #endif 1487 k = SSL_write(con, &(buf[l]), (unsigned int) i); 1488 switch (SSL_get_error(con, k)) { 1489 case SSL_ERROR_NONE: 1490 break; 1491 case SSL_ERROR_WANT_WRITE: 1492 case SSL_ERROR_WANT_READ: 1493 case SSL_ERROR_WANT_X509_LOOKUP: 1494 BIO_printf(bio_s_out, "Write BLOCK\n"); 1495 break; 1496 case SSL_ERROR_SYSCALL: 1497 case SSL_ERROR_SSL: 1498 BIO_printf(bio_s_out, "ERROR\n"); 1499 ERR_print_errors(bio_err); 1500 ret = 1; 1501 goto err; 1502 /* break; */ 1503 case SSL_ERROR_ZERO_RETURN: 1504 BIO_printf(bio_s_out, "DONE\n"); 1505 ret = 1; 1506 goto err; 1507 } 1508 if (k <= 0) 1509 continue; 1510 l += k; 1511 i -= k; 1512 if (i <= 0) 1513 break; 1514 } 1515 } 1516 if (read_from_sslcon) { 1517 if (!SSL_is_init_finished(con)) { 1518 i = init_ssl_connection(con); 1519 1520 if (i < 0) { 1521 ret = 0; 1522 goto err; 1523 } else if (i == 0) { 1524 ret = 1; 1525 goto err; 1526 } 1527 } else { 1528 again: 1529 i = SSL_read(con, (char *) buf, bufsize); 1530 switch (SSL_get_error(con, i)) { 1531 case SSL_ERROR_NONE: { 1532 int len, n; 1533 for (len = 0; len < i;) { 1534 do { 1535 n = write(fileno(stdout), buf + len, i - len); 1536 } while (n == -1 && errno == EINTR); 1537 1538 if (n == -1) { 1539 BIO_printf(bio_s_out, "ERROR\n"); 1540 goto err; 1541 } 1542 len += n; 1543 } 1544 } 1545 if (SSL_pending(con)) 1546 goto again; 1547 break; 1548 case SSL_ERROR_WANT_WRITE: 1549 case SSL_ERROR_WANT_READ: 1550 BIO_printf(bio_s_out, "Read BLOCK\n"); 1551 break; 1552 case SSL_ERROR_SYSCALL: 1553 case SSL_ERROR_SSL: 1554 BIO_printf(bio_s_out, "ERROR\n"); 1555 ERR_print_errors(bio_err); 1556 ret = 1; 1557 goto err; 1558 case SSL_ERROR_ZERO_RETURN: 1559 BIO_printf(bio_s_out, "DONE\n"); 1560 ret = 1; 1561 goto err; 1562 } 1563 } 1564 } 1565 } 1566 err: 1567 if (con != NULL) { 1568 BIO_printf(bio_s_out, "shutting down SSL\n"); 1569 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 1570 SSL_free(con); 1571 } 1572 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 1573 freezero(buf, bufsize); 1574 if (ret >= 0) 1575 BIO_printf(bio_s_out, "ACCEPT\n"); 1576 return (ret); 1577 } 1578 1579 static void 1580 close_accept_socket(void) 1581 { 1582 BIO_printf(bio_err, "shutdown accept socket\n"); 1583 if (accept_socket >= 0) { 1584 shutdown(accept_socket, SHUT_RDWR); 1585 close(accept_socket); 1586 } 1587 } 1588 1589 static int 1590 init_ssl_connection(SSL * con) 1591 { 1592 int i; 1593 const char *str; 1594 X509 *peer; 1595 long verify_error; 1596 char buf[BUFSIZ]; 1597 unsigned char *exportedkeymat; 1598 1599 i = SSL_accept(con); 1600 if (i <= 0) { 1601 if (BIO_sock_should_retry(i)) { 1602 BIO_printf(bio_s_out, "DELAY\n"); 1603 return (1); 1604 } 1605 BIO_printf(bio_err, "ERROR\n"); 1606 verify_error = SSL_get_verify_result(con); 1607 if (verify_error != X509_V_OK) { 1608 BIO_printf(bio_err, "verify error:%s\n", 1609 X509_verify_cert_error_string(verify_error)); 1610 } else 1611 ERR_print_errors(bio_err); 1612 return (0); 1613 } 1614 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 1615 1616 peer = SSL_get_peer_certificate(con); 1617 if (peer != NULL) { 1618 BIO_printf(bio_s_out, "Client certificate\n"); 1619 PEM_write_bio_X509(bio_s_out, peer); 1620 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 1621 BIO_printf(bio_s_out, "subject=%s\n", buf); 1622 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 1623 BIO_printf(bio_s_out, "issuer=%s\n", buf); 1624 X509_free(peer); 1625 } 1626 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL) 1627 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 1628 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 1629 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 1630 1631 #ifndef OPENSSL_NO_SRTP 1632 { 1633 SRTP_PROTECTION_PROFILE *srtp_profile 1634 = SSL_get_selected_srtp_profile(con); 1635 1636 if (srtp_profile) 1637 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", 1638 srtp_profile->name); 1639 } 1640 #endif 1641 if (SSL_cache_hit(con)) 1642 BIO_printf(bio_s_out, "Reused session-id\n"); 1643 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", 1644 SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); 1645 if (keymatexportlabel != NULL) { 1646 BIO_printf(bio_s_out, "Keying material exporter:\n"); 1647 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); 1648 BIO_printf(bio_s_out, " Length: %i bytes\n", 1649 keymatexportlen); 1650 exportedkeymat = malloc(keymatexportlen); 1651 if (exportedkeymat != NULL) { 1652 if (!SSL_export_keying_material(con, exportedkeymat, 1653 keymatexportlen, 1654 keymatexportlabel, 1655 strlen(keymatexportlabel), 1656 NULL, 0, 0)) { 1657 BIO_printf(bio_s_out, " Error\n"); 1658 } else { 1659 BIO_printf(bio_s_out, " Keying material: "); 1660 for (i = 0; i < keymatexportlen; i++) 1661 BIO_printf(bio_s_out, "%02X", 1662 exportedkeymat[i]); 1663 BIO_printf(bio_s_out, "\n"); 1664 } 1665 free(exportedkeymat); 1666 } 1667 } 1668 return (1); 1669 } 1670 1671 #ifndef OPENSSL_NO_DH 1672 static DH * 1673 load_dh_param(const char *dhfile) 1674 { 1675 DH *ret = NULL; 1676 BIO *bio; 1677 1678 if ((bio = BIO_new_file(dhfile, "r")) == NULL) 1679 goto err; 1680 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); 1681 err: 1682 BIO_free(bio); 1683 return (ret); 1684 } 1685 #endif 1686 1687 static int 1688 www_body(char *hostname, int s, unsigned char *context) 1689 { 1690 char *buf = NULL; 1691 int ret = 1; 1692 int i, j, k, dot; 1693 SSL *con; 1694 const SSL_CIPHER *c; 1695 BIO *io, *ssl_bio, *sbio; 1696 1697 buf = malloc(bufsize); 1698 if (buf == NULL) 1699 return (0); 1700 io = BIO_new(BIO_f_buffer()); 1701 ssl_bio = BIO_new(BIO_f_ssl()); 1702 if ((io == NULL) || (ssl_bio == NULL)) 1703 goto err; 1704 1705 if (s_nbio) { 1706 if (!s_quiet) 1707 BIO_printf(bio_err, "turning on non blocking io\n"); 1708 if (!BIO_socket_nbio(s, 1)) 1709 ERR_print_errors(bio_err); 1710 } 1711 1712 /* lets make the output buffer a reasonable size */ 1713 if (!BIO_set_write_buffer_size(io, bufsize)) 1714 goto err; 1715 1716 if ((con = SSL_new(ctx)) == NULL) 1717 goto err; 1718 if (s_tlsextdebug) { 1719 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1720 SSL_set_tlsext_debug_arg(con, bio_s_out); 1721 } 1722 if (context) 1723 SSL_set_session_id_context(con, context, 1724 strlen((char *) context)); 1725 1726 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1727 if (s_nbio_test) { 1728 BIO *test; 1729 1730 test = BIO_new(BIO_f_nbio_test()); 1731 sbio = BIO_push(test, sbio); 1732 } 1733 SSL_set_bio(con, sbio, sbio); 1734 SSL_set_accept_state(con); 1735 1736 /* SSL_set_fd(con,s); */ 1737 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 1738 BIO_push(io, ssl_bio); 1739 1740 if (s_debug) { 1741 SSL_set_debug(con, 1); 1742 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1743 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1744 } 1745 if (s_msg) { 1746 SSL_set_msg_callback(con, msg_cb); 1747 SSL_set_msg_callback_arg(con, bio_s_out); 1748 } 1749 for (;;) { 1750 i = BIO_gets(io, buf, bufsize - 1); 1751 if (i < 0) { /* error */ 1752 if (!BIO_should_retry(io)) { 1753 if (!s_quiet) 1754 ERR_print_errors(bio_err); 1755 goto err; 1756 } else { 1757 if (s_debug) { 1758 BIO_printf(bio_s_out, "read R BLOCK\n"); 1759 sleep(1); 1760 } 1761 continue; 1762 } 1763 } else if (i == 0) { /* end of input */ 1764 ret = 1; 1765 goto end; 1766 } 1767 /* else we have data */ 1768 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || 1769 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { 1770 char *p; 1771 X509 *peer; 1772 STACK_OF(SSL_CIPHER) * sk; 1773 static const char *space = " "; 1774 1775 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1776 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 1777 BIO_puts(io, "<pre>\n"); 1778 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/ 1779 BIO_puts(io, "\n"); 1780 for (i = 0; i < local_argc; i++) { 1781 BIO_puts(io, local_argv[i]); 1782 BIO_write(io, " ", 1); 1783 } 1784 BIO_puts(io, "\n"); 1785 1786 BIO_printf(io, 1787 "Secure Renegotiation IS%s supported\n", 1788 SSL_get_secure_renegotiation_support(con) ? 1789 "" : " NOT"); 1790 1791 /* 1792 * The following is evil and should not really be 1793 * done 1794 */ 1795 BIO_printf(io, "Ciphers supported in s_server binary\n"); 1796 sk = SSL_get_ciphers(con); 1797 j = sk_SSL_CIPHER_num(sk); 1798 for (i = 0; i < j; i++) { 1799 c = sk_SSL_CIPHER_value(sk, i); 1800 BIO_printf(io, "%-11s:%-25s", 1801 SSL_CIPHER_get_version(c), 1802 SSL_CIPHER_get_name(c)); 1803 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 1804 BIO_puts(io, "\n"); 1805 } 1806 BIO_puts(io, "\n"); 1807 p = SSL_get_shared_ciphers(con, buf, bufsize); 1808 if (p != NULL) { 1809 BIO_printf(io, "---\nCiphers common between both SSL end points:\n"); 1810 j = i = 0; 1811 while (*p) { 1812 if (*p == ':') { 1813 BIO_write(io, space, 26 - j); 1814 i++; 1815 j = 0; 1816 BIO_write(io, ((i % 3) ? " " : "\n"), 1); 1817 } else { 1818 BIO_write(io, p, 1); 1819 j++; 1820 } 1821 p++; 1822 } 1823 BIO_puts(io, "\n"); 1824 } 1825 BIO_printf(io, (SSL_cache_hit(con) 1826 ? "---\nReused, " 1827 : "---\nNew, ")); 1828 c = SSL_get_current_cipher(con); 1829 BIO_printf(io, "%s, Cipher is %s\n", 1830 SSL_CIPHER_get_version(c), 1831 SSL_CIPHER_get_name(c)); 1832 SSL_SESSION_print(io, SSL_get_session(con)); 1833 BIO_printf(io, "---\n"); 1834 print_stats(io, SSL_get_SSL_CTX(con)); 1835 BIO_printf(io, "---\n"); 1836 peer = SSL_get_peer_certificate(con); 1837 if (peer != NULL) { 1838 BIO_printf(io, "Client certificate\n"); 1839 X509_print(io, peer); 1840 PEM_write_bio_X509(io, peer); 1841 } else 1842 BIO_puts(io, "no client certificate available\n"); 1843 BIO_puts(io, "</BODY></HTML>\r\n\r\n"); 1844 break; 1845 } else if ((www == 2 || www == 3) 1846 && (strncmp("GET /", buf, 5) == 0)) { 1847 BIO *file; 1848 char *p, *e; 1849 static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 1850 1851 /* skip the '/' */ 1852 p = &(buf[5]); 1853 1854 dot = 1; 1855 for (e = p; *e != '\0'; e++) { 1856 if (e[0] == ' ') 1857 break; 1858 1859 switch (dot) { 1860 case 1: 1861 dot = (e[0] == '.') ? 2 : 0; 1862 break; 1863 case 2: 1864 dot = (e[0] == '.') ? 3 : 0; 1865 break; 1866 case 3: 1867 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0; 1868 break; 1869 } 1870 if (dot == 0) 1871 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0; 1872 } 1873 dot = (dot == 3) || (dot == -1); /* filename contains 1874 * ".." component */ 1875 1876 if (*e == '\0') { 1877 BIO_puts(io, text); 1878 BIO_printf(io, "'%s' is an invalid file name\r\n", p); 1879 break; 1880 } 1881 *e = '\0'; 1882 1883 if (dot) { 1884 BIO_puts(io, text); 1885 BIO_printf(io, "'%s' contains '..' reference\r\n", p); 1886 break; 1887 } 1888 if (*p == '/') { 1889 BIO_puts(io, text); 1890 BIO_printf(io, "'%s' is an invalid path\r\n", p); 1891 break; 1892 } 1893 /* if a directory, do the index thang */ 1894 if (app_isdir(p) > 0) { 1895 BIO_puts(io, text); 1896 BIO_printf(io, "'%s' is a directory\r\n", p); 1897 break; 1898 } 1899 if ((file = BIO_new_file(p, "r")) == NULL) { 1900 BIO_puts(io, text); 1901 BIO_printf(io, "Error opening '%s'\r\n", p); 1902 ERR_print_errors(io); 1903 break; 1904 } 1905 if (!s_quiet) 1906 BIO_printf(bio_err, "FILE:%s\n", p); 1907 1908 if (www == 2) { 1909 i = strlen(p); 1910 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 1911 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 1912 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 1913 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1914 else 1915 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 1916 } 1917 /* send the file */ 1918 for (;;) { 1919 i = BIO_read(file, buf, bufsize); 1920 if (i <= 0) 1921 break; 1922 1923 #ifdef RENEG 1924 total_bytes += i; 1925 fprintf(stderr, "%d\n", i); 1926 if (total_bytes > 3 * 1024) { 1927 total_bytes = 0; 1928 fprintf(stderr, "RENEGOTIATE\n"); 1929 SSL_renegotiate(con); 1930 } 1931 #endif 1932 1933 for (j = 0; j < i;) { 1934 #ifdef RENEG 1935 { 1936 static count = 0; 1937 if (++count == 13) { 1938 SSL_renegotiate(con); 1939 } 1940 } 1941 #endif 1942 k = BIO_write(io, &(buf[j]), i - j); 1943 if (k <= 0) { 1944 if (!BIO_should_retry(io)) 1945 goto write_error; 1946 else { 1947 BIO_printf(bio_s_out, "rwrite W BLOCK\n"); 1948 } 1949 } else { 1950 j += k; 1951 } 1952 } 1953 } 1954 write_error: 1955 BIO_free(file); 1956 break; 1957 } 1958 } 1959 1960 for (;;) { 1961 i = (int) BIO_flush(io); 1962 if (i <= 0) { 1963 if (!BIO_should_retry(io)) 1964 break; 1965 } else 1966 break; 1967 } 1968 end: 1969 /* make sure we re-use sessions */ 1970 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 1971 1972 err: 1973 1974 if (ret >= 0) 1975 BIO_printf(bio_s_out, "ACCEPT\n"); 1976 1977 free(buf); 1978 BIO_free_all(io); 1979 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/ 1980 return (ret); 1981 } 1982 1983 #define MAX_SESSION_ID_ATTEMPTS 10 1984 static int 1985 generate_session_id(const SSL * ssl, unsigned char *id, 1986 unsigned int *id_len) 1987 { 1988 unsigned int count = 0; 1989 do { 1990 arc4random_buf(id, *id_len); 1991 /* 1992 * Prefix the session_id with the required prefix. NB: If our 1993 * prefix is too long, clip it - but there will be worse 1994 * effects anyway, eg. the server could only possibly create 1995 * 1 session ID (ie. the prefix!) so all future session 1996 * negotiations will fail due to conflicts. 1997 */ 1998 memcpy(id, session_id_prefix, 1999 (strlen(session_id_prefix) < *id_len) ? 2000 strlen(session_id_prefix) : *id_len); 2001 } 2002 while (SSL_has_matching_session_id(ssl, id, *id_len) && 2003 (++count < MAX_SESSION_ID_ATTEMPTS)); 2004 if (count >= MAX_SESSION_ID_ATTEMPTS) 2005 return 0; 2006 return 1; 2007 } 2008