1 /* $OpenBSD: s_server.c,v 1.23 2015/12/01 12:04:51 jca 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, " -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n"); 337 BIO_printf(bio_err," -alpn arg - set the advertised protocols for the ALPN extension (comma-separated list)\n"); 338 #ifndef OPENSSL_NO_SRTP 339 BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 340 #endif 341 BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n"); 342 BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 343 } 344 345 static int local_argc = 0; 346 static char **local_argv; 347 348 349 /* This is a context that we pass to callbacks */ 350 typedef struct tlsextctx_st { 351 char *servername; 352 BIO *biodebug; 353 int extension_error; 354 } tlsextctx; 355 356 357 static int 358 ssl_servername_cb(SSL * s, int *ad, void *arg) 359 { 360 tlsextctx *p = (tlsextctx *) arg; 361 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 362 if (servername && p->biodebug) 363 BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n", servername); 364 365 if (!p->servername) 366 return SSL_TLSEXT_ERR_NOACK; 367 368 if (servername) { 369 if (strcmp(servername, p->servername)) 370 return p->extension_error; 371 if (ctx2) { 372 BIO_printf(p->biodebug, "Switching server context.\n"); 373 SSL_set_SSL_CTX(s, ctx2); 374 } 375 } 376 return SSL_TLSEXT_ERR_OK; 377 } 378 379 /* Structure passed to cert status callback */ 380 381 typedef struct tlsextstatusctx_st { 382 /* Default responder to use */ 383 char *host, *path, *port; 384 int use_ssl; 385 int timeout; 386 BIO *err; 387 int verbose; 388 } tlsextstatusctx; 389 390 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0}; 391 392 /* Certificate Status callback. This is called when a client includes a 393 * certificate status request extension. 394 * 395 * This is a simplified version. It examines certificates each time and 396 * makes one OCSP responder query for each request. 397 * 398 * A full version would store details such as the OCSP certificate IDs and 399 * minimise the number of OCSP responses by caching them until they were 400 * considered "expired". 401 */ 402 403 static int 404 cert_status_cb(SSL * s, void *arg) 405 { 406 tlsextstatusctx *srctx = arg; 407 BIO *err = srctx->err; 408 char *host, *port, *path; 409 int use_ssl; 410 unsigned char *rspder = NULL; 411 int rspderlen; 412 STACK_OF(OPENSSL_STRING) * aia = NULL; 413 X509 *x = NULL; 414 X509_STORE_CTX inctx; 415 X509_OBJECT obj; 416 OCSP_REQUEST *req = NULL; 417 OCSP_RESPONSE *resp = NULL; 418 OCSP_CERTID *id = NULL; 419 STACK_OF(X509_EXTENSION) * exts; 420 int ret = SSL_TLSEXT_ERR_NOACK; 421 int i; 422 423 if (srctx->verbose) 424 BIO_puts(err, "cert_status: callback called\n"); 425 /* Build up OCSP query from server certificate */ 426 x = SSL_get_certificate(s); 427 aia = X509_get1_ocsp(x); 428 if (aia) { 429 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0), 430 &host, &port, &path, &use_ssl)) { 431 BIO_puts(err, "cert_status: can't parse AIA URL\n"); 432 goto err; 433 } 434 if (srctx->verbose) 435 BIO_printf(err, "cert_status: AIA URL: %s\n", 436 sk_OPENSSL_STRING_value(aia, 0)); 437 } else { 438 if (!srctx->host) { 439 BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n"); 440 goto done; 441 } 442 host = srctx->host; 443 path = srctx->path; 444 port = srctx->port; 445 use_ssl = srctx->use_ssl; 446 } 447 448 if (!X509_STORE_CTX_init(&inctx, 449 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), 450 NULL, NULL)) 451 goto err; 452 if (X509_STORE_get_by_subject(&inctx, X509_LU_X509, 453 X509_get_issuer_name(x), &obj) <= 0) { 454 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n"); 455 X509_STORE_CTX_cleanup(&inctx); 456 goto done; 457 } 458 req = OCSP_REQUEST_new(); 459 if (!req) 460 goto err; 461 id = OCSP_cert_to_id(NULL, x, obj.data.x509); 462 X509_free(obj.data.x509); 463 X509_STORE_CTX_cleanup(&inctx); 464 if (!id) 465 goto err; 466 if (!OCSP_request_add0_id(req, id)) 467 goto err; 468 id = NULL; 469 /* Add any extensions to the request */ 470 SSL_get_tlsext_status_exts(s, &exts); 471 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { 472 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); 473 if (!OCSP_REQUEST_add_ext(req, ext, -1)) 474 goto err; 475 } 476 resp = process_responder(err, req, host, path, port, use_ssl, NULL, 477 srctx->timeout); 478 if (!resp) { 479 BIO_puts(err, "cert_status: error querying responder\n"); 480 goto done; 481 } 482 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); 483 if (rspderlen <= 0) 484 goto err; 485 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); 486 if (srctx->verbose) { 487 BIO_puts(err, "cert_status: ocsp response sent:\n"); 488 OCSP_RESPONSE_print(err, resp, 2); 489 } 490 ret = SSL_TLSEXT_ERR_OK; 491 done: 492 if (ret != SSL_TLSEXT_ERR_OK) 493 ERR_print_errors(err); 494 if (aia) { 495 free(host); 496 free(path); 497 free(port); 498 X509_email_free(aia); 499 } 500 if (id) 501 OCSP_CERTID_free(id); 502 if (req) 503 OCSP_REQUEST_free(req); 504 if (resp) 505 OCSP_RESPONSE_free(resp); 506 return ret; 507 err: 508 ret = SSL_TLSEXT_ERR_ALERT_FATAL; 509 goto done; 510 } 511 512 /* This is the context that we pass to next_proto_cb */ 513 typedef struct tlsextnextprotoctx_st { 514 unsigned char *data; 515 unsigned int len; 516 } tlsextnextprotoctx; 517 518 static int 519 next_proto_cb(SSL * s, const unsigned char **data, unsigned int *len, void *arg) 520 { 521 tlsextnextprotoctx *next_proto = arg; 522 523 *data = next_proto->data; 524 *len = next_proto->len; 525 526 return SSL_TLSEXT_ERR_OK; 527 } 528 529 530 /* This the context that we pass to alpn_cb */ 531 typedef struct tlsextalpnctx_st { 532 unsigned char *data; 533 unsigned short len; 534 } tlsextalpnctx; 535 536 static int 537 alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 538 const unsigned char *in, unsigned int inlen, void *arg) 539 { 540 tlsextalpnctx *alpn_ctx = arg; 541 542 if (!s_quiet) { 543 /* We can assume that in is syntactically valid. */ 544 unsigned i; 545 546 BIO_printf(bio_s_out, 547 "ALPN protocols advertised by the client: "); 548 for (i = 0; i < inlen; ) { 549 if (i) 550 BIO_write(bio_s_out, ", ", 2); 551 BIO_write(bio_s_out, &in[i + 1], in[i]); 552 i += in[i] + 1; 553 } 554 BIO_write(bio_s_out, "\n", 1); 555 } 556 557 if (SSL_select_next_proto((unsigned char**)out, outlen, alpn_ctx->data, 558 alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED) 559 return (SSL_TLSEXT_ERR_NOACK); 560 561 if (!s_quiet) { 562 BIO_printf(bio_s_out, "ALPN protocols selected: "); 563 BIO_write(bio_s_out, *out, *outlen); 564 BIO_write(bio_s_out, "\n", 1); 565 } 566 567 return (SSL_TLSEXT_ERR_OK); 568 } 569 570 #ifndef OPENSSL_NO_SRTP 571 static char *srtp_profiles = NULL; 572 #endif 573 574 int 575 s_server_main(int argc, char *argv[]) 576 { 577 X509_VERIFY_PARAM *vpm = NULL; 578 int badarg = 0; 579 short port = PORT; 580 char *CApath = NULL, *CAfile = NULL; 581 unsigned char *context = NULL; 582 char *dhfile = NULL; 583 char *named_curve = NULL; 584 int badop = 0, bugs = 0; 585 int ret = 1; 586 int off = 0; 587 int no_dhe = 0, no_ecdhe = 0, nocert = 0; 588 int state = 0; 589 const SSL_METHOD *meth = NULL; 590 int socket_type = SOCK_STREAM; 591 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM; 592 char *passarg = NULL, *pass = NULL; 593 char *dpassarg = NULL, *dpass = NULL; 594 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM; 595 X509 *s_cert = NULL, *s_dcert = NULL; 596 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 597 int no_cache = 0; 598 const char *errstr = NULL; 599 EVP_PKEY *s_key2 = NULL; 600 X509 *s_cert2 = NULL; 601 tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING}; 602 const char *next_proto_neg_in = NULL; 603 tlsextnextprotoctx next_proto = { NULL, 0 }; 604 const char *alpn_in = NULL; 605 tlsextalpnctx alpn_ctx = { NULL, 0 }; 606 607 if (single_execution) { 608 if (pledge("stdio inet dns rpath tty", NULL) == -1) { 609 perror("pledge"); 610 exit(1); 611 } 612 } 613 614 meth = SSLv23_server_method(); 615 616 local_argc = argc; 617 local_argv = argv; 618 619 s_server_init(); 620 621 verify_depth = 0; 622 s_nbio = 0; 623 s_nbio_test = 0; 624 625 argc--; 626 argv++; 627 628 while (argc >= 1) { 629 if ((strcmp(*argv, "-port") == 0) || 630 (strcmp(*argv, "-accept") == 0)) { 631 if (--argc < 1) 632 goto bad; 633 if (!extract_port(*(++argv), &port)) 634 goto bad; 635 } else if (strcmp(*argv, "-verify") == 0) { 636 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; 637 if (--argc < 1) 638 goto bad; 639 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 640 if (errstr) 641 goto bad; 642 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 643 } else if (strcmp(*argv, "-Verify") == 0) { 644 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | 645 SSL_VERIFY_CLIENT_ONCE; 646 if (--argc < 1) 647 goto bad; 648 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 649 if (errstr) 650 goto bad; 651 BIO_printf(bio_err, "verify depth is %d, must return a certificate\n", verify_depth); 652 } else if (strcmp(*argv, "-context") == 0) { 653 if (--argc < 1) 654 goto bad; 655 context = (unsigned char *) *(++argv); 656 } else if (strcmp(*argv, "-cert") == 0) { 657 if (--argc < 1) 658 goto bad; 659 s_cert_file = *(++argv); 660 } else if (strcmp(*argv, "-certform") == 0) { 661 if (--argc < 1) 662 goto bad; 663 s_cert_format = str2fmt(*(++argv)); 664 } else if (strcmp(*argv, "-key") == 0) { 665 if (--argc < 1) 666 goto bad; 667 s_key_file = *(++argv); 668 } else if (strcmp(*argv, "-keyform") == 0) { 669 if (--argc < 1) 670 goto bad; 671 s_key_format = str2fmt(*(++argv)); 672 } else if (strcmp(*argv, "-pass") == 0) { 673 if (--argc < 1) 674 goto bad; 675 passarg = *(++argv); 676 } else if (strcmp(*argv, "-dhparam") == 0) { 677 if (--argc < 1) 678 goto bad; 679 dhfile = *(++argv); 680 } 681 else if (strcmp(*argv, "-named_curve") == 0) { 682 if (--argc < 1) 683 goto bad; 684 named_curve = *(++argv); 685 } 686 else if (strcmp(*argv, "-dcertform") == 0) { 687 if (--argc < 1) 688 goto bad; 689 s_dcert_format = str2fmt(*(++argv)); 690 } else if (strcmp(*argv, "-dcert") == 0) { 691 if (--argc < 1) 692 goto bad; 693 s_dcert_file = *(++argv); 694 } else if (strcmp(*argv, "-dkeyform") == 0) { 695 if (--argc < 1) 696 goto bad; 697 s_dkey_format = str2fmt(*(++argv)); 698 } else if (strcmp(*argv, "-dpass") == 0) { 699 if (--argc < 1) 700 goto bad; 701 dpassarg = *(++argv); 702 } else if (strcmp(*argv, "-dkey") == 0) { 703 if (--argc < 1) 704 goto bad; 705 s_dkey_file = *(++argv); 706 } else if (strcmp(*argv, "-nocert") == 0) { 707 nocert = 1; 708 } else if (strcmp(*argv, "-CApath") == 0) { 709 if (--argc < 1) 710 goto bad; 711 CApath = *(++argv); 712 } else if (strcmp(*argv, "-no_cache") == 0) 713 no_cache = 1; 714 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 715 if (badarg) 716 goto bad; 717 continue; 718 } else if (strcmp(*argv, "-verify_return_error") == 0) 719 verify_return_error = 1; 720 else if (strcmp(*argv, "-serverpref") == 0) { 721 off |= SSL_OP_CIPHER_SERVER_PREFERENCE; 722 } else if (strcmp(*argv, "-legacy_renegotiation") == 0) 723 ; /* no-op */ 724 else if (strcmp(*argv, "-cipher") == 0) { 725 if (--argc < 1) 726 goto bad; 727 cipher = *(++argv); 728 } else if (strcmp(*argv, "-CAfile") == 0) { 729 if (--argc < 1) 730 goto bad; 731 CAfile = *(++argv); 732 } 733 else if (strcmp(*argv, "-nbio") == 0) { 734 s_nbio = 1; 735 } 736 else if (strcmp(*argv, "-nbio_test") == 0) { 737 s_nbio = 1; 738 s_nbio_test = 1; 739 } else if (strcmp(*argv, "-debug") == 0) { 740 s_debug = 1; 741 } 742 else if (strcmp(*argv, "-tlsextdebug") == 0) 743 s_tlsextdebug = 1; 744 else if (strcmp(*argv, "-status") == 0) 745 s_tlsextstatus = 1; 746 else if (strcmp(*argv, "-status_verbose") == 0) { 747 s_tlsextstatus = 1; 748 tlscstatp.verbose = 1; 749 } else if (!strcmp(*argv, "-status_timeout")) { 750 s_tlsextstatus = 1; 751 if (--argc < 1) 752 goto bad; 753 tlscstatp.timeout = strtonum(*(++argv), 0, INT_MAX, &errstr); 754 if (errstr) 755 goto bad; 756 } else if (!strcmp(*argv, "-status_url")) { 757 s_tlsextstatus = 1; 758 if (--argc < 1) 759 goto bad; 760 if (!OCSP_parse_url(*(++argv), 761 &tlscstatp.host, 762 &tlscstatp.port, 763 &tlscstatp.path, 764 &tlscstatp.use_ssl)) { 765 BIO_printf(bio_err, "Error parsing URL\n"); 766 goto bad; 767 } 768 } 769 else if (strcmp(*argv, "-msg") == 0) { 770 s_msg = 1; 771 } else if (strcmp(*argv, "-state") == 0) { 772 state = 1; 773 } else if (strcmp(*argv, "-crlf") == 0) { 774 s_crlf = 1; 775 } else if (strcmp(*argv, "-quiet") == 0) { 776 s_quiet = 1; 777 } else if (strcmp(*argv, "-bugs") == 0) { 778 bugs = 1; 779 } else if (strcmp(*argv, "-no_tmp_rsa") == 0) { 780 /* No-op. */ 781 } else if (strcmp(*argv, "-no_dhe") == 0) { 782 no_dhe = 1; 783 } else if (strcmp(*argv, "-no_ecdhe") == 0) { 784 no_ecdhe = 1; 785 } else if (strcmp(*argv, "-www") == 0) { 786 www = 1; 787 } else if (strcmp(*argv, "-WWW") == 0) { 788 www = 2; 789 } else if (strcmp(*argv, "-HTTP") == 0) { 790 www = 3; 791 } else if (strcmp(*argv, "-no_ssl2") == 0) { 792 off |= SSL_OP_NO_SSLv2; 793 } else if (strcmp(*argv, "-no_ssl3") == 0) { 794 off |= SSL_OP_NO_SSLv3; 795 } else if (strcmp(*argv, "-no_tls1") == 0) { 796 off |= SSL_OP_NO_TLSv1; 797 } else if (strcmp(*argv, "-no_tls1_1") == 0) { 798 off |= SSL_OP_NO_TLSv1_1; 799 } else if (strcmp(*argv, "-no_tls1_2") == 0) { 800 off |= SSL_OP_NO_TLSv1_2; 801 } else if (strcmp(*argv, "-no_comp") == 0) { 802 off |= SSL_OP_NO_COMPRESSION; 803 } else if (strcmp(*argv, "-no_ticket") == 0) { 804 off |= SSL_OP_NO_TICKET; 805 } else if (strcmp(*argv, "-tls1") == 0) { 806 meth = TLSv1_server_method(); 807 } else if (strcmp(*argv, "-tls1_1") == 0) { 808 meth = TLSv1_1_server_method(); 809 } else if (strcmp(*argv, "-tls1_2") == 0) { 810 meth = TLSv1_2_server_method(); 811 } 812 #ifndef OPENSSL_NO_DTLS1 813 else if (strcmp(*argv, "-dtls1") == 0) { 814 meth = DTLSv1_server_method(); 815 socket_type = SOCK_DGRAM; 816 } else if (strcmp(*argv, "-timeout") == 0) 817 enable_timeouts = 1; 818 else if (strcmp(*argv, "-mtu") == 0) { 819 if (--argc < 1) 820 goto bad; 821 socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr); 822 if (errstr) 823 goto bad; 824 } else if (strcmp(*argv, "-chain") == 0) 825 cert_chain = 1; 826 #endif 827 else if (strcmp(*argv, "-id_prefix") == 0) { 828 if (--argc < 1) 829 goto bad; 830 session_id_prefix = *(++argv); 831 } 832 else if (strcmp(*argv, "-servername") == 0) { 833 if (--argc < 1) 834 goto bad; 835 tlsextcbp.servername = *(++argv); 836 } else if (strcmp(*argv, "-servername_fatal") == 0) { 837 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; 838 } else if (strcmp(*argv, "-cert2") == 0) { 839 if (--argc < 1) 840 goto bad; 841 s_cert_file2 = *(++argv); 842 } else if (strcmp(*argv, "-key2") == 0) { 843 if (--argc < 1) 844 goto bad; 845 s_key_file2 = *(++argv); 846 } 847 else if (strcmp(*argv, "-nextprotoneg") == 0) { 848 if (--argc < 1) 849 goto bad; 850 next_proto_neg_in = *(++argv); 851 } 852 else if (strcmp(*argv,"-alpn") == 0) { 853 if (--argc < 1) 854 goto bad; 855 alpn_in = *(++argv); 856 } 857 #ifndef OPENSSL_NO_SRTP 858 else if (strcmp(*argv, "-use_srtp") == 0) { 859 if (--argc < 1) 860 goto bad; 861 srtp_profiles = *(++argv); 862 } 863 #endif 864 else if (strcmp(*argv, "-keymatexport") == 0) { 865 if (--argc < 1) 866 goto bad; 867 keymatexportlabel = *(++argv); 868 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 869 if (--argc < 1) 870 goto bad; 871 keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr); 872 if (errstr) 873 goto bad; 874 } else { 875 BIO_printf(bio_err, "unknown option %s\n", *argv); 876 badop = 1; 877 break; 878 } 879 argc--; 880 argv++; 881 } 882 if (badop) { 883 bad: 884 if (errstr) 885 BIO_printf(bio_err, "invalid argument %s: %s\n", 886 *argv, errstr); 887 else 888 sv_usage(); 889 goto end; 890 } 891 892 if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) { 893 BIO_printf(bio_err, "Error getting password\n"); 894 goto end; 895 } 896 if (s_key_file == NULL) 897 s_key_file = s_cert_file; 898 if (s_key_file2 == NULL) 899 s_key_file2 = s_cert_file2; 900 901 if (nocert == 0) { 902 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, 903 "server certificate private key file"); 904 if (!s_key) { 905 ERR_print_errors(bio_err); 906 goto end; 907 } 908 s_cert = load_cert(bio_err, s_cert_file, s_cert_format, 909 NULL, "server certificate file"); 910 911 if (!s_cert) { 912 ERR_print_errors(bio_err); 913 goto end; 914 } 915 if (tlsextcbp.servername) { 916 s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, 917 "second server certificate private key file"); 918 if (!s_key2) { 919 ERR_print_errors(bio_err); 920 goto end; 921 } 922 s_cert2 = load_cert(bio_err, s_cert_file2, s_cert_format, 923 NULL, "second server certificate file"); 924 925 if (!s_cert2) { 926 ERR_print_errors(bio_err); 927 goto end; 928 } 929 } 930 } 931 if (next_proto_neg_in) { 932 unsigned short len; 933 next_proto.data = next_protos_parse(&len, next_proto_neg_in); 934 if (next_proto.data == NULL) 935 goto end; 936 next_proto.len = len; 937 } else { 938 next_proto.data = NULL; 939 } 940 alpn_ctx.data = NULL; 941 if (alpn_in) { 942 unsigned short len; 943 alpn_ctx.data = next_protos_parse(&len, alpn_in); 944 if (alpn_ctx.data == NULL) 945 goto end; 946 alpn_ctx.len = len; 947 } 948 949 if (s_dcert_file) { 950 951 if (s_dkey_file == NULL) 952 s_dkey_file = s_dcert_file; 953 954 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format, 955 0, dpass, "second certificate private key file"); 956 if (!s_dkey) { 957 ERR_print_errors(bio_err); 958 goto end; 959 } 960 s_dcert = load_cert(bio_err, s_dcert_file, s_dcert_format, 961 NULL, "second server certificate file"); 962 963 if (!s_dcert) { 964 ERR_print_errors(bio_err); 965 goto end; 966 } 967 } 968 if (bio_s_out == NULL) { 969 if (s_quiet && !s_debug && !s_msg) { 970 bio_s_out = BIO_new(BIO_s_null()); 971 } else { 972 if (bio_s_out == NULL) 973 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE); 974 } 975 } 976 if (nocert) { 977 s_cert_file = NULL; 978 s_key_file = NULL; 979 s_dcert_file = NULL; 980 s_dkey_file = NULL; 981 s_cert_file2 = NULL; 982 s_key_file2 = NULL; 983 } 984 ctx = SSL_CTX_new(meth); 985 if (ctx == NULL) { 986 ERR_print_errors(bio_err); 987 goto end; 988 } 989 if (session_id_prefix) { 990 if (strlen(session_id_prefix) >= 32) 991 BIO_printf(bio_err, 992 "warning: id_prefix is too long, only one new session will be possible\n"); 993 else if (strlen(session_id_prefix) >= 16) 994 BIO_printf(bio_err, 995 "warning: id_prefix is too long if you use SSLv2\n"); 996 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 997 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 998 ERR_print_errors(bio_err); 999 goto end; 1000 } 1001 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1002 } 1003 SSL_CTX_set_quiet_shutdown(ctx, 1); 1004 if (bugs) 1005 SSL_CTX_set_options(ctx, SSL_OP_ALL); 1006 SSL_CTX_set_options(ctx, off); 1007 /* 1008 * DTLS: partial reads end up discarding unread UDP bytes :-( Setting 1009 * read ahead solves this problem. 1010 */ 1011 if (socket_type == SOCK_DGRAM) 1012 SSL_CTX_set_read_ahead(ctx, 1); 1013 1014 if (state) 1015 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1016 if (no_cache) 1017 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 1018 else 1019 SSL_CTX_sess_set_cache_size(ctx, 128); 1020 1021 #ifndef OPENSSL_NO_SRTP 1022 if (srtp_profiles != NULL) 1023 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 1024 #endif 1025 1026 1027 if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) || 1028 (!SSL_CTX_set_default_verify_paths(ctx))) { 1029 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */ 1030 ERR_print_errors(bio_err); 1031 /* goto end; */ 1032 } 1033 if (vpm) 1034 SSL_CTX_set1_param(ctx, vpm); 1035 1036 if (s_cert2) { 1037 ctx2 = SSL_CTX_new(meth); 1038 if (ctx2 == NULL) { 1039 ERR_print_errors(bio_err); 1040 goto end; 1041 } 1042 } 1043 if (ctx2) { 1044 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 1045 1046 if (session_id_prefix) { 1047 if (strlen(session_id_prefix) >= 32) 1048 BIO_printf(bio_err, 1049 "warning: id_prefix is too long, only one new session will be possible\n"); 1050 else if (strlen(session_id_prefix) >= 16) 1051 BIO_printf(bio_err, 1052 "warning: id_prefix is too long if you use SSLv2\n"); 1053 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { 1054 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1055 ERR_print_errors(bio_err); 1056 goto end; 1057 } 1058 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1059 } 1060 SSL_CTX_set_quiet_shutdown(ctx2, 1); 1061 if (bugs) 1062 SSL_CTX_set_options(ctx2, SSL_OP_ALL); 1063 SSL_CTX_set_options(ctx2, off); 1064 /* 1065 * DTLS: partial reads end up discarding unread UDP bytes :-( 1066 * Setting read ahead solves this problem. 1067 */ 1068 if (socket_type == SOCK_DGRAM) 1069 SSL_CTX_set_read_ahead(ctx2, 1); 1070 1071 if (state) 1072 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 1073 1074 if (no_cache) 1075 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 1076 else 1077 SSL_CTX_sess_set_cache_size(ctx2, 128); 1078 1079 if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) || 1080 (!SSL_CTX_set_default_verify_paths(ctx2))) { 1081 ERR_print_errors(bio_err); 1082 } 1083 if (vpm) 1084 SSL_CTX_set1_param(ctx2, vpm); 1085 } 1086 if (next_proto.data) 1087 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto); 1088 if (alpn_ctx.data) 1089 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 1090 1091 #ifndef OPENSSL_NO_DH 1092 if (!no_dhe) { 1093 DH *dh = NULL; 1094 1095 if (dhfile) 1096 dh = load_dh_param(dhfile); 1097 else if (s_cert_file) 1098 dh = load_dh_param(s_cert_file); 1099 1100 if (dh != NULL) 1101 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1102 else 1103 BIO_printf(bio_s_out, "Using auto DH parameters\n"); 1104 (void) BIO_flush(bio_s_out); 1105 1106 if (dh == NULL) 1107 SSL_CTX_set_dh_auto(ctx, 1); 1108 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { 1109 BIO_printf(bio_err, 1110 "Error setting temp DH parameters\n"); 1111 ERR_print_errors(bio_err); 1112 DH_free(dh); 1113 goto end; 1114 } 1115 1116 if (ctx2) { 1117 if (!dhfile) { 1118 DH *dh2 = NULL; 1119 1120 if (s_cert_file2 != NULL) 1121 dh2 = load_dh_param(s_cert_file2); 1122 if (dh2 != NULL) { 1123 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1124 (void) BIO_flush(bio_s_out); 1125 1126 DH_free(dh); 1127 dh = dh2; 1128 } 1129 } 1130 if (dh == NULL) 1131 SSL_CTX_set_dh_auto(ctx2, 1); 1132 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { 1133 BIO_printf(bio_err, 1134 "Error setting temp DH parameters\n"); 1135 ERR_print_errors(bio_err); 1136 DH_free(dh); 1137 goto end; 1138 } 1139 } 1140 DH_free(dh); 1141 } 1142 #endif 1143 1144 if (!no_ecdhe) { 1145 EC_KEY *ecdh = NULL; 1146 1147 if (named_curve) { 1148 int nid = OBJ_sn2nid(named_curve); 1149 1150 if (nid == 0) { 1151 BIO_printf(bio_err, "unknown curve name (%s)\n", 1152 named_curve); 1153 goto end; 1154 } 1155 ecdh = EC_KEY_new_by_curve_name(nid); 1156 if (ecdh == NULL) { 1157 BIO_printf(bio_err, "unable to create curve (%s)\n", 1158 named_curve); 1159 goto end; 1160 } 1161 } 1162 if (ecdh != NULL) { 1163 BIO_printf(bio_s_out, "Setting temp ECDH parameters\n"); 1164 } else { 1165 BIO_printf(bio_s_out, "Using default temp ECDH parameters\n"); 1166 ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); 1167 if (ecdh == NULL) { 1168 BIO_printf(bio_err, "unable to create curve (nistp256)\n"); 1169 goto end; 1170 } 1171 } 1172 (void) BIO_flush(bio_s_out); 1173 1174 SSL_CTX_set_tmp_ecdh(ctx, ecdh); 1175 if (ctx2) 1176 SSL_CTX_set_tmp_ecdh(ctx2, ecdh); 1177 EC_KEY_free(ecdh); 1178 } 1179 1180 if (!set_cert_key_stuff(ctx, s_cert, s_key)) 1181 goto end; 1182 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2)) 1183 goto end; 1184 if (s_dcert != NULL) { 1185 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey)) 1186 goto end; 1187 } 1188 1189 if (cipher != NULL) { 1190 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 1191 BIO_printf(bio_err, "error setting cipher list\n"); 1192 ERR_print_errors(bio_err); 1193 goto end; 1194 } 1195 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2, cipher)) { 1196 BIO_printf(bio_err, "error setting cipher list\n"); 1197 ERR_print_errors(bio_err); 1198 goto end; 1199 } 1200 } 1201 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); 1202 SSL_CTX_set_session_id_context(ctx, (void *) &s_server_session_id_context, 1203 sizeof s_server_session_id_context); 1204 1205 /* Set DTLS cookie generation and verification callbacks */ 1206 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 1207 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 1208 1209 if (ctx2) { 1210 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); 1211 SSL_CTX_set_session_id_context(ctx2, (void *) &s_server_session_id_context, 1212 sizeof s_server_session_id_context); 1213 1214 tlsextcbp.biodebug = bio_s_out; 1215 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 1216 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); 1217 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1218 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1219 } 1220 1221 if (CAfile != NULL) { 1222 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); 1223 if (ctx2) 1224 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); 1225 } 1226 BIO_printf(bio_s_out, "ACCEPT\n"); 1227 (void) BIO_flush(bio_s_out); 1228 if (www) 1229 do_server(port, socket_type, &accept_socket, www_body, context); 1230 else 1231 do_server(port, socket_type, &accept_socket, sv_body, context); 1232 print_stats(bio_s_out, ctx); 1233 ret = 0; 1234 end: 1235 if (ctx != NULL) 1236 SSL_CTX_free(ctx); 1237 if (s_cert) 1238 X509_free(s_cert); 1239 if (s_dcert) 1240 X509_free(s_dcert); 1241 if (s_key) 1242 EVP_PKEY_free(s_key); 1243 if (s_dkey) 1244 EVP_PKEY_free(s_dkey); 1245 free(pass); 1246 free(dpass); 1247 if (vpm) 1248 X509_VERIFY_PARAM_free(vpm); 1249 free(tlscstatp.host); 1250 free(tlscstatp.port); 1251 free(tlscstatp.path); 1252 if (ctx2 != NULL) 1253 SSL_CTX_free(ctx2); 1254 if (s_cert2) 1255 X509_free(s_cert2); 1256 if (s_key2) 1257 EVP_PKEY_free(s_key2); 1258 free(next_proto.data); 1259 free(alpn_ctx.data); 1260 if (bio_s_out != NULL) { 1261 BIO_free(bio_s_out); 1262 bio_s_out = NULL; 1263 } 1264 1265 return (ret); 1266 } 1267 1268 static void 1269 print_stats(BIO * bio, SSL_CTX * ssl_ctx) 1270 { 1271 BIO_printf(bio, "%4ld items in the session cache\n", 1272 SSL_CTX_sess_number(ssl_ctx)); 1273 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 1274 SSL_CTX_sess_connect(ssl_ctx)); 1275 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 1276 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 1277 BIO_printf(bio, "%4ld client connects that finished\n", 1278 SSL_CTX_sess_connect_good(ssl_ctx)); 1279 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 1280 SSL_CTX_sess_accept(ssl_ctx)); 1281 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 1282 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 1283 BIO_printf(bio, "%4ld server accepts that finished\n", 1284 SSL_CTX_sess_accept_good(ssl_ctx)); 1285 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); 1286 BIO_printf(bio, "%4ld session cache misses\n", SSL_CTX_sess_misses(ssl_ctx)); 1287 BIO_printf(bio, "%4ld session cache timeouts\n", SSL_CTX_sess_timeouts(ssl_ctx)); 1288 BIO_printf(bio, "%4ld callback cache hits\n", SSL_CTX_sess_cb_hits(ssl_ctx)); 1289 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 1290 SSL_CTX_sess_cache_full(ssl_ctx), 1291 SSL_CTX_sess_get_cache_size(ssl_ctx)); 1292 } 1293 1294 static int 1295 sv_body(char *hostname, int s, unsigned char *context) 1296 { 1297 char *buf = NULL; 1298 int ret = 1; 1299 int k, i; 1300 unsigned long l; 1301 SSL *con = NULL; 1302 BIO *sbio; 1303 struct timeval timeout; 1304 1305 if ((buf = malloc(bufsize)) == NULL) { 1306 BIO_printf(bio_err, "out of memory\n"); 1307 goto err; 1308 } 1309 if (s_nbio) { 1310 if (!s_quiet) 1311 BIO_printf(bio_err, "turning on non blocking io\n"); 1312 if (!BIO_socket_nbio(s, 1)) 1313 ERR_print_errors(bio_err); 1314 } 1315 1316 if (con == NULL) { 1317 con = SSL_new(ctx); 1318 if (s_tlsextdebug) { 1319 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1320 SSL_set_tlsext_debug_arg(con, bio_s_out); 1321 } 1322 if (s_tlsextstatus) { 1323 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 1324 tlscstatp.err = bio_err; 1325 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); 1326 } 1327 if (context) 1328 SSL_set_session_id_context(con, context, 1329 strlen((char *) context)); 1330 } 1331 SSL_clear(con); 1332 1333 if (SSL_version(con) == DTLS1_VERSION) { 1334 1335 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1336 1337 if (enable_timeouts) { 1338 timeout.tv_sec = 0; 1339 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1340 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1341 1342 timeout.tv_sec = 0; 1343 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1344 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1345 } 1346 if (socket_mtu > 28) { 1347 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1348 SSL_set_mtu(con, socket_mtu - 28); 1349 } else 1350 /* want to do MTU discovery */ 1351 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1352 1353 /* turn on cookie exchange */ 1354 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 1355 } else 1356 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1357 1358 if (s_nbio_test) { 1359 BIO *test; 1360 1361 test = BIO_new(BIO_f_nbio_test()); 1362 sbio = BIO_push(test, sbio); 1363 } 1364 1365 SSL_set_bio(con, sbio, sbio); 1366 SSL_set_accept_state(con); 1367 /* SSL_set_fd(con,s); */ 1368 1369 if (s_debug) { 1370 SSL_set_debug(con, 1); 1371 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1372 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1373 } 1374 if (s_msg) { 1375 SSL_set_msg_callback(con, msg_cb); 1376 SSL_set_msg_callback_arg(con, bio_s_out); 1377 } 1378 if (s_tlsextdebug) { 1379 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1380 SSL_set_tlsext_debug_arg(con, bio_s_out); 1381 } 1382 1383 for (;;) { 1384 int read_from_terminal; 1385 int read_from_sslcon; 1386 struct pollfd pfd[2]; 1387 int ptimeout; 1388 1389 read_from_terminal = 0; 1390 read_from_sslcon = SSL_pending(con); 1391 1392 if (!read_from_sslcon) { 1393 pfd[0].fd = fileno(stdin); 1394 pfd[0].events = POLLIN; 1395 pfd[1].fd = s; 1396 pfd[1].events = POLLIN; 1397 1398 if ((SSL_version(con) == DTLS1_VERSION) && 1399 DTLSv1_get_timeout(con, &timeout)) 1400 ptimeout = timeout.tv_sec * 1000 + 1401 timeout.tv_usec / 1000; 1402 else 1403 ptimeout = -1; 1404 1405 i = poll(pfd, 2, ptimeout); 1406 1407 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) { 1408 BIO_printf(bio_err, "TIMEOUT occured\n"); 1409 } 1410 if (i <= 0) 1411 continue; 1412 if (pfd[0].revents) { 1413 if ((pfd[0].revents & (POLLERR|POLLNVAL))) 1414 continue; 1415 read_from_terminal = 1; 1416 } 1417 if (pfd[1].revents) { 1418 if ((pfd[1].revents & (POLLERR|POLLNVAL))) 1419 continue; 1420 read_from_sslcon = 1; 1421 } 1422 } 1423 if (read_from_terminal) { 1424 if (s_crlf) { 1425 int j, lf_num; 1426 1427 i = read(fileno(stdin), buf, bufsize / 2); 1428 lf_num = 0; 1429 /* both loops are skipped when i <= 0 */ 1430 for (j = 0; j < i; j++) 1431 if (buf[j] == '\n') 1432 lf_num++; 1433 for (j = i - 1; j >= 0; j--) { 1434 buf[j + lf_num] = buf[j]; 1435 if (buf[j] == '\n') { 1436 lf_num--; 1437 i++; 1438 buf[j + lf_num] = '\r'; 1439 } 1440 } 1441 assert(lf_num == 0); 1442 } else 1443 i = read(fileno(stdin), buf, bufsize); 1444 if (!s_quiet) { 1445 if ((i <= 0) || (buf[0] == 'Q')) { 1446 BIO_printf(bio_s_out, "DONE\n"); 1447 shutdown(s, SHUT_RD); 1448 close(s); 1449 close_accept_socket(); 1450 ret = -11; 1451 goto err; 1452 } 1453 if ((i <= 0) || (buf[0] == 'q')) { 1454 BIO_printf(bio_s_out, "DONE\n"); 1455 if (SSL_version(con) != DTLS1_VERSION) { 1456 shutdown(s, SHUT_RD); 1457 close(s); 1458 } 1459 /* 1460 * close_accept_socket(); ret= -11; 1461 */ 1462 goto err; 1463 } 1464 if ((buf[0] == 'r') && 1465 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1466 SSL_renegotiate(con); 1467 i = SSL_do_handshake(con); 1468 printf("SSL_do_handshake -> %d\n", i); 1469 i = 0; /* 13; */ 1470 continue; 1471 /* 1472 * RE-NEGOTIATE\n"); 1473 */ 1474 } 1475 if ((buf[0] == 'R') && 1476 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1477 SSL_set_verify(con, 1478 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, NULL); 1479 SSL_renegotiate(con); 1480 i = SSL_do_handshake(con); 1481 printf("SSL_do_handshake -> %d\n", i); 1482 i = 0; /* 13; */ 1483 continue; 1484 /* 1485 * RE-NEGOTIATE asking for client 1486 * cert\n"); 1487 */ 1488 } 1489 if (buf[0] == 'P') { 1490 static const char *str = "Lets print some clear text\n"; 1491 BIO_write(SSL_get_wbio(con), str, strlen(str)); 1492 } 1493 if (buf[0] == 'S') { 1494 print_stats(bio_s_out, SSL_get_SSL_CTX(con)); 1495 } 1496 } 1497 l = k = 0; 1498 for (;;) { 1499 /* should do a select for the write */ 1500 #ifdef RENEG 1501 { 1502 static count = 0; 1503 if (++count == 100) { 1504 count = 0; 1505 SSL_renegotiate(con); 1506 } 1507 } 1508 #endif 1509 k = SSL_write(con, &(buf[l]), (unsigned int) i); 1510 switch (SSL_get_error(con, k)) { 1511 case SSL_ERROR_NONE: 1512 break; 1513 case SSL_ERROR_WANT_WRITE: 1514 case SSL_ERROR_WANT_READ: 1515 case SSL_ERROR_WANT_X509_LOOKUP: 1516 BIO_printf(bio_s_out, "Write BLOCK\n"); 1517 break; 1518 case SSL_ERROR_SYSCALL: 1519 case SSL_ERROR_SSL: 1520 BIO_printf(bio_s_out, "ERROR\n"); 1521 ERR_print_errors(bio_err); 1522 ret = 1; 1523 goto err; 1524 /* break; */ 1525 case SSL_ERROR_ZERO_RETURN: 1526 BIO_printf(bio_s_out, "DONE\n"); 1527 ret = 1; 1528 goto err; 1529 } 1530 l += k; 1531 i -= k; 1532 if (i <= 0) 1533 break; 1534 } 1535 } 1536 if (read_from_sslcon) { 1537 if (!SSL_is_init_finished(con)) { 1538 i = init_ssl_connection(con); 1539 1540 if (i < 0) { 1541 ret = 0; 1542 goto err; 1543 } else if (i == 0) { 1544 ret = 1; 1545 goto err; 1546 } 1547 } else { 1548 again: 1549 i = SSL_read(con, (char *) buf, bufsize); 1550 switch (SSL_get_error(con, i)) { 1551 case SSL_ERROR_NONE: { 1552 int len, n; 1553 for (len = 0; len < i;) { 1554 do { 1555 n = write(fileno(stdout), buf + len, i - len); 1556 } while (n == -1 && errno == EINTR); 1557 1558 if (n < 0) { 1559 BIO_printf(bio_s_out, "ERROR\n"); 1560 goto err; 1561 } 1562 len += n; 1563 } 1564 } 1565 if (SSL_pending(con)) 1566 goto again; 1567 break; 1568 case SSL_ERROR_WANT_WRITE: 1569 case SSL_ERROR_WANT_READ: 1570 BIO_printf(bio_s_out, "Read BLOCK\n"); 1571 break; 1572 case SSL_ERROR_SYSCALL: 1573 case SSL_ERROR_SSL: 1574 BIO_printf(bio_s_out, "ERROR\n"); 1575 ERR_print_errors(bio_err); 1576 ret = 1; 1577 goto err; 1578 case SSL_ERROR_ZERO_RETURN: 1579 BIO_printf(bio_s_out, "DONE\n"); 1580 ret = 1; 1581 goto err; 1582 } 1583 } 1584 } 1585 } 1586 err: 1587 if (con != NULL) { 1588 BIO_printf(bio_s_out, "shutting down SSL\n"); 1589 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 1590 SSL_free(con); 1591 } 1592 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 1593 if (buf != NULL) { 1594 explicit_bzero(buf, bufsize); 1595 free(buf); 1596 } 1597 if (ret >= 0) 1598 BIO_printf(bio_s_out, "ACCEPT\n"); 1599 return (ret); 1600 } 1601 1602 static void 1603 close_accept_socket(void) 1604 { 1605 BIO_printf(bio_err, "shutdown accept socket\n"); 1606 if (accept_socket >= 0) { 1607 shutdown(accept_socket, SHUT_RDWR); 1608 close(accept_socket); 1609 } 1610 } 1611 1612 static int 1613 init_ssl_connection(SSL * con) 1614 { 1615 int i; 1616 const char *str; 1617 X509 *peer; 1618 long verify_error; 1619 char buf[BUFSIZ]; 1620 const unsigned char *next_proto_neg; 1621 unsigned next_proto_neg_len; 1622 unsigned char *exportedkeymat; 1623 1624 i = SSL_accept(con); 1625 if (i <= 0) { 1626 if (BIO_sock_should_retry(i)) { 1627 BIO_printf(bio_s_out, "DELAY\n"); 1628 return (1); 1629 } 1630 BIO_printf(bio_err, "ERROR\n"); 1631 verify_error = SSL_get_verify_result(con); 1632 if (verify_error != X509_V_OK) { 1633 BIO_printf(bio_err, "verify error:%s\n", 1634 X509_verify_cert_error_string(verify_error)); 1635 } else 1636 ERR_print_errors(bio_err); 1637 return (0); 1638 } 1639 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 1640 1641 peer = SSL_get_peer_certificate(con); 1642 if (peer != NULL) { 1643 BIO_printf(bio_s_out, "Client certificate\n"); 1644 PEM_write_bio_X509(bio_s_out, peer); 1645 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 1646 BIO_printf(bio_s_out, "subject=%s\n", buf); 1647 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 1648 BIO_printf(bio_s_out, "issuer=%s\n", buf); 1649 X509_free(peer); 1650 } 1651 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL) 1652 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 1653 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 1654 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 1655 1656 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len); 1657 if (next_proto_neg) { 1658 BIO_printf(bio_s_out, "NEXTPROTO is "); 1659 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len); 1660 BIO_printf(bio_s_out, "\n"); 1661 } 1662 #ifndef OPENSSL_NO_SRTP 1663 { 1664 SRTP_PROTECTION_PROFILE *srtp_profile 1665 = SSL_get_selected_srtp_profile(con); 1666 1667 if (srtp_profile) 1668 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", 1669 srtp_profile->name); 1670 } 1671 #endif 1672 if (SSL_cache_hit(con)) 1673 BIO_printf(bio_s_out, "Reused session-id\n"); 1674 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", 1675 SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); 1676 if (keymatexportlabel != NULL) { 1677 BIO_printf(bio_s_out, "Keying material exporter:\n"); 1678 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); 1679 BIO_printf(bio_s_out, " Length: %i bytes\n", 1680 keymatexportlen); 1681 exportedkeymat = malloc(keymatexportlen); 1682 if (exportedkeymat != NULL) { 1683 if (!SSL_export_keying_material(con, exportedkeymat, 1684 keymatexportlen, 1685 keymatexportlabel, 1686 strlen(keymatexportlabel), 1687 NULL, 0, 0)) { 1688 BIO_printf(bio_s_out, " Error\n"); 1689 } else { 1690 BIO_printf(bio_s_out, " Keying material: "); 1691 for (i = 0; i < keymatexportlen; i++) 1692 BIO_printf(bio_s_out, "%02X", 1693 exportedkeymat[i]); 1694 BIO_printf(bio_s_out, "\n"); 1695 } 1696 free(exportedkeymat); 1697 } 1698 } 1699 return (1); 1700 } 1701 1702 #ifndef OPENSSL_NO_DH 1703 static DH * 1704 load_dh_param(const char *dhfile) 1705 { 1706 DH *ret = NULL; 1707 BIO *bio; 1708 1709 if ((bio = BIO_new_file(dhfile, "r")) == NULL) 1710 goto err; 1711 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); 1712 err: 1713 BIO_free(bio); 1714 return (ret); 1715 } 1716 #endif 1717 1718 static int 1719 www_body(char *hostname, int s, unsigned char *context) 1720 { 1721 char *buf = NULL; 1722 int ret = 1; 1723 int i, j, k, dot; 1724 SSL *con; 1725 const SSL_CIPHER *c; 1726 BIO *io, *ssl_bio, *sbio; 1727 1728 buf = malloc(bufsize); 1729 if (buf == NULL) 1730 return (0); 1731 io = BIO_new(BIO_f_buffer()); 1732 ssl_bio = BIO_new(BIO_f_ssl()); 1733 if ((io == NULL) || (ssl_bio == NULL)) 1734 goto err; 1735 1736 if (s_nbio) { 1737 if (!s_quiet) 1738 BIO_printf(bio_err, "turning on non blocking io\n"); 1739 if (!BIO_socket_nbio(s, 1)) 1740 ERR_print_errors(bio_err); 1741 } 1742 1743 /* lets make the output buffer a reasonable size */ 1744 if (!BIO_set_write_buffer_size(io, bufsize)) 1745 goto err; 1746 1747 if ((con = SSL_new(ctx)) == NULL) 1748 goto err; 1749 if (s_tlsextdebug) { 1750 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1751 SSL_set_tlsext_debug_arg(con, bio_s_out); 1752 } 1753 if (context) 1754 SSL_set_session_id_context(con, context, 1755 strlen((char *) context)); 1756 1757 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1758 if (s_nbio_test) { 1759 BIO *test; 1760 1761 test = BIO_new(BIO_f_nbio_test()); 1762 sbio = BIO_push(test, sbio); 1763 } 1764 SSL_set_bio(con, sbio, sbio); 1765 SSL_set_accept_state(con); 1766 1767 /* SSL_set_fd(con,s); */ 1768 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 1769 BIO_push(io, ssl_bio); 1770 1771 if (s_debug) { 1772 SSL_set_debug(con, 1); 1773 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1774 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1775 } 1776 if (s_msg) { 1777 SSL_set_msg_callback(con, msg_cb); 1778 SSL_set_msg_callback_arg(con, bio_s_out); 1779 } 1780 for (;;) { 1781 i = BIO_gets(io, buf, bufsize - 1); 1782 if (i < 0) { /* error */ 1783 if (!BIO_should_retry(io)) { 1784 if (!s_quiet) 1785 ERR_print_errors(bio_err); 1786 goto err; 1787 } else { 1788 BIO_printf(bio_s_out, "read R BLOCK\n"); 1789 sleep(1); 1790 continue; 1791 } 1792 } else if (i == 0) { /* end of input */ 1793 ret = 1; 1794 goto end; 1795 } 1796 /* else we have data */ 1797 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || 1798 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { 1799 char *p; 1800 X509 *peer; 1801 STACK_OF(SSL_CIPHER) * sk; 1802 static const char *space = " "; 1803 1804 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1805 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 1806 BIO_puts(io, "<pre>\n"); 1807 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/ 1808 BIO_puts(io, "\n"); 1809 for (i = 0; i < local_argc; i++) { 1810 BIO_puts(io, local_argv[i]); 1811 BIO_write(io, " ", 1); 1812 } 1813 BIO_puts(io, "\n"); 1814 1815 BIO_printf(io, 1816 "Secure Renegotiation IS%s supported\n", 1817 SSL_get_secure_renegotiation_support(con) ? 1818 "" : " NOT"); 1819 1820 /* 1821 * The following is evil and should not really be 1822 * done 1823 */ 1824 BIO_printf(io, "Ciphers supported in s_server binary\n"); 1825 sk = SSL_get_ciphers(con); 1826 j = sk_SSL_CIPHER_num(sk); 1827 for (i = 0; i < j; i++) { 1828 c = sk_SSL_CIPHER_value(sk, i); 1829 BIO_printf(io, "%-11s:%-25s", 1830 SSL_CIPHER_get_version(c), 1831 SSL_CIPHER_get_name(c)); 1832 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 1833 BIO_puts(io, "\n"); 1834 } 1835 BIO_puts(io, "\n"); 1836 p = SSL_get_shared_ciphers(con, buf, bufsize); 1837 if (p != NULL) { 1838 BIO_printf(io, "---\nCiphers common between both SSL end points:\n"); 1839 j = i = 0; 1840 while (*p) { 1841 if (*p == ':') { 1842 BIO_write(io, space, 26 - j); 1843 i++; 1844 j = 0; 1845 BIO_write(io, ((i % 3) ? " " : "\n"), 1); 1846 } else { 1847 BIO_write(io, p, 1); 1848 j++; 1849 } 1850 p++; 1851 } 1852 BIO_puts(io, "\n"); 1853 } 1854 BIO_printf(io, (SSL_cache_hit(con) 1855 ? "---\nReused, " 1856 : "---\nNew, ")); 1857 c = SSL_get_current_cipher(con); 1858 BIO_printf(io, "%s, Cipher is %s\n", 1859 SSL_CIPHER_get_version(c), 1860 SSL_CIPHER_get_name(c)); 1861 SSL_SESSION_print(io, SSL_get_session(con)); 1862 BIO_printf(io, "---\n"); 1863 print_stats(io, SSL_get_SSL_CTX(con)); 1864 BIO_printf(io, "---\n"); 1865 peer = SSL_get_peer_certificate(con); 1866 if (peer != NULL) { 1867 BIO_printf(io, "Client certificate\n"); 1868 X509_print(io, peer); 1869 PEM_write_bio_X509(io, peer); 1870 } else 1871 BIO_puts(io, "no client certificate available\n"); 1872 BIO_puts(io, "</BODY></HTML>\r\n\r\n"); 1873 break; 1874 } else if ((www == 2 || www == 3) 1875 && (strncmp("GET /", buf, 5) == 0)) { 1876 BIO *file; 1877 char *p, *e; 1878 static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 1879 1880 /* skip the '/' */ 1881 p = &(buf[5]); 1882 1883 dot = 1; 1884 for (e = p; *e != '\0'; e++) { 1885 if (e[0] == ' ') 1886 break; 1887 1888 switch (dot) { 1889 case 1: 1890 dot = (e[0] == '.') ? 2 : 0; 1891 break; 1892 case 2: 1893 dot = (e[0] == '.') ? 3 : 0; 1894 break; 1895 case 3: 1896 dot = (e[0] == '/') ? -1 : 0; 1897 break; 1898 } 1899 if (dot == 0) 1900 dot = (e[0] == '/') ? 1 : 0; 1901 } 1902 dot = (dot == 3) || (dot == -1); /* filename contains 1903 * ".." component */ 1904 1905 if (*e == '\0') { 1906 BIO_puts(io, text); 1907 BIO_printf(io, "'%s' is an invalid file name\r\n", p); 1908 break; 1909 } 1910 *e = '\0'; 1911 1912 if (dot) { 1913 BIO_puts(io, text); 1914 BIO_printf(io, "'%s' contains '..' reference\r\n", p); 1915 break; 1916 } 1917 if (*p == '/') { 1918 BIO_puts(io, text); 1919 BIO_printf(io, "'%s' is an invalid path\r\n", p); 1920 break; 1921 } 1922 /* if a directory, do the index thang */ 1923 if (app_isdir(p) > 0) { 1924 BIO_puts(io, text); 1925 BIO_printf(io, "'%s' is a directory\r\n", p); 1926 break; 1927 } 1928 if ((file = BIO_new_file(p, "r")) == NULL) { 1929 BIO_puts(io, text); 1930 BIO_printf(io, "Error opening '%s'\r\n", p); 1931 ERR_print_errors(io); 1932 break; 1933 } 1934 if (!s_quiet) 1935 BIO_printf(bio_err, "FILE:%s\n", p); 1936 1937 if (www == 2) { 1938 i = strlen(p); 1939 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 1940 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 1941 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 1942 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1943 else 1944 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 1945 } 1946 /* send the file */ 1947 for (;;) { 1948 i = BIO_read(file, buf, bufsize); 1949 if (i <= 0) 1950 break; 1951 1952 #ifdef RENEG 1953 total_bytes += i; 1954 fprintf(stderr, "%d\n", i); 1955 if (total_bytes > 3 * 1024) { 1956 total_bytes = 0; 1957 fprintf(stderr, "RENEGOTIATE\n"); 1958 SSL_renegotiate(con); 1959 } 1960 #endif 1961 1962 for (j = 0; j < i;) { 1963 #ifdef RENEG 1964 { 1965 static count = 0; 1966 if (++count == 13) { 1967 SSL_renegotiate(con); 1968 } 1969 } 1970 #endif 1971 k = BIO_write(io, &(buf[j]), i - j); 1972 if (k <= 0) { 1973 if (!BIO_should_retry(io)) 1974 goto write_error; 1975 else { 1976 BIO_printf(bio_s_out, "rwrite W BLOCK\n"); 1977 } 1978 } else { 1979 j += k; 1980 } 1981 } 1982 } 1983 write_error: 1984 BIO_free(file); 1985 break; 1986 } 1987 } 1988 1989 for (;;) { 1990 i = (int) BIO_flush(io); 1991 if (i <= 0) { 1992 if (!BIO_should_retry(io)) 1993 break; 1994 } else 1995 break; 1996 } 1997 end: 1998 /* make sure we re-use sessions */ 1999 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 2000 2001 err: 2002 2003 if (ret >= 0) 2004 BIO_printf(bio_s_out, "ACCEPT\n"); 2005 2006 free(buf); 2007 if (io != NULL) 2008 BIO_free_all(io); 2009 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/ 2010 return (ret); 2011 } 2012 2013 #define MAX_SESSION_ID_ATTEMPTS 10 2014 static int 2015 generate_session_id(const SSL * ssl, unsigned char *id, 2016 unsigned int *id_len) 2017 { 2018 unsigned int count = 0; 2019 do { 2020 arc4random_buf(id, *id_len); 2021 /* 2022 * Prefix the session_id with the required prefix. NB: If our 2023 * prefix is too long, clip it - but there will be worse 2024 * effects anyway, eg. the server could only possibly create 2025 * 1 session ID (ie. the prefix!) so all future session 2026 * negotiations will fail due to conflicts. 2027 */ 2028 memcpy(id, session_id_prefix, 2029 (strlen(session_id_prefix) < *id_len) ? 2030 strlen(session_id_prefix) : *id_len); 2031 } 2032 while (SSL_has_matching_session_id(ssl, id, *id_len) && 2033 (++count < MAX_SESSION_ID_ATTEMPTS)); 2034 if (count >= MAX_SESSION_ID_ATTEMPTS) 2035 return 0; 2036 return 1; 2037 } 2038