1 /* $OpenBSD: s_server.c,v 1.61 2025/01/02 13:10:03 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 static void s_server_init(void); 178 static void sv_usage(void); 179 static void print_stats(BIO *bp, SSL_CTX *ctx); 180 static int sv_body(int s, unsigned char *context); 181 static void close_accept_socket(void); 182 static int init_ssl_connection(SSL *s); 183 #ifndef OPENSSL_NO_DH 184 static DH *load_dh_param(const char *dhfile); 185 #endif 186 static int www_body(int s, unsigned char *context); 187 static int generate_session_id(const SSL *ssl, unsigned char *id, 188 unsigned int *id_len); 189 static int ssl_servername_cb(SSL *s, int *ad, void *arg); 190 static int cert_status_cb(SSL * s, void *arg); 191 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 192 const unsigned char *in, unsigned int inlen, void *arg); 193 /* static int load_CA(SSL_CTX *ctx, char *file);*/ 194 195 #define BUFSIZZ 16*1024 196 static int bufsize = BUFSIZZ; 197 static int accept_socket = -1; 198 199 #define TEST_CERT "server.pem" 200 #define TEST_CERT2 "server2.pem" 201 202 static int s_server_session_id_context = 1; /* anything will do */ 203 static SSL_CTX *ctx = NULL; 204 static SSL_CTX *ctx2 = NULL; 205 static BIO *bio_s_out = NULL; 206 207 static int local_argc = 0; 208 static char **local_argv; 209 210 /* This is a context that we pass to callbacks */ 211 typedef struct tlsextctx_st { 212 char *servername; 213 BIO *biodebug; 214 int extension_error; 215 } tlsextctx; 216 217 /* Structure passed to cert status callback */ 218 typedef struct tlsextstatusctx_st { 219 /* Default responder to use */ 220 char *host, *path, *port; 221 int use_ssl; 222 int timeout; 223 BIO *err; 224 int verbose; 225 } tlsextstatusctx; 226 227 /* This the context that we pass to alpn_cb */ 228 typedef struct tlsextalpnctx_st { 229 unsigned char *data; 230 unsigned short len; 231 } tlsextalpnctx; 232 233 static struct { 234 char *alpn_in; 235 char *npn_in; /* Ignored. */ 236 int bugs; 237 char *CAfile; 238 char *CApath; 239 #ifndef OPENSSL_NO_DTLS 240 int cert_chain; 241 #endif 242 char *cert_file; 243 char *cert_file2; 244 int cert_format; 245 char *cipher; 246 unsigned char *context; 247 int crlf; 248 char *dcert_file; 249 int dcert_format; 250 int debug; 251 char *dhfile; 252 char *dkey_file; 253 int dkey_format; 254 char *dpassarg; 255 int enable_timeouts; 256 const char *errstr; 257 char *groups_in; 258 char *key_file; 259 char *key_file2; 260 int key_format; 261 char *keymatexportlabel; 262 int keymatexportlen; 263 uint16_t max_version; 264 uint16_t min_version; 265 const SSL_METHOD *meth; 266 int msg; 267 int naccept; 268 char *named_curve; 269 int nbio; 270 int nbio_test; 271 int no_cache; 272 int nocert; 273 int no_dhe; 274 int no_ecdhe; 275 int no_tmp_rsa; /* No-op. */ 276 int off; 277 char *passarg; 278 short port; 279 int quiet; 280 int server_verify; 281 char *session_id_prefix; 282 long socket_mtu; 283 int socket_type; 284 #ifndef OPENSSL_NO_SRTP 285 char *srtp_profiles; 286 #endif 287 int state; 288 tlsextstatusctx tlscstatp; 289 tlsextctx tlsextcbp; 290 int tlsextdebug; 291 int tlsextstatus; 292 X509_VERIFY_PARAM *vpm; 293 int www; 294 } cfg; 295 296 static int 297 s_server_opt_context(char *arg) 298 { 299 cfg.context = (unsigned char *) arg; 300 return (0); 301 } 302 303 static int 304 s_server_opt_keymatexportlen(char *arg) 305 { 306 cfg.keymatexportlen = strtonum(arg, 1, INT_MAX, 307 &cfg.errstr); 308 if (cfg.errstr != NULL) { 309 BIO_printf(bio_err, "invalid argument %s: %s\n", 310 arg, cfg.errstr); 311 return (1); 312 } 313 return (0); 314 } 315 316 #ifndef OPENSSL_NO_DTLS 317 static int 318 s_server_opt_mtu(char *arg) 319 { 320 cfg.socket_mtu = strtonum(arg, 0, LONG_MAX, 321 &cfg.errstr); 322 if (cfg.errstr != NULL) { 323 BIO_printf(bio_err, "invalid argument %s: %s\n", 324 arg, cfg.errstr); 325 return (1); 326 } 327 return (0); 328 } 329 #endif 330 331 #ifndef OPENSSL_NO_DTLS 332 static int 333 s_server_opt_protocol_version_dtls(void) 334 { 335 cfg.meth = DTLS_server_method(); 336 cfg.socket_type = SOCK_DGRAM; 337 return (0); 338 } 339 #endif 340 341 #ifndef OPENSSL_NO_DTLS1_2 342 static int 343 s_server_opt_protocol_version_dtls1_2(void) 344 { 345 cfg.meth = DTLS_server_method(); 346 cfg.min_version = DTLS1_2_VERSION; 347 cfg.max_version = DTLS1_2_VERSION; 348 cfg.socket_type = SOCK_DGRAM; 349 return (0); 350 } 351 #endif 352 353 static int 354 s_server_opt_protocol_version_tls1_2(void) 355 { 356 cfg.min_version = TLS1_2_VERSION; 357 cfg.max_version = TLS1_2_VERSION; 358 return (0); 359 } 360 361 static int 362 s_server_opt_protocol_version_tls1_3(void) 363 { 364 cfg.min_version = TLS1_3_VERSION; 365 cfg.max_version = TLS1_3_VERSION; 366 return (0); 367 } 368 369 static int 370 s_server_opt_nbio_test(void) 371 { 372 cfg.nbio = 1; 373 cfg.nbio_test = 1; 374 return (0); 375 } 376 377 static int 378 s_server_opt_port(char *arg) 379 { 380 if (!extract_port(arg, &cfg.port)) 381 return (1); 382 return (0); 383 } 384 385 static int 386 s_server_opt_status_timeout(char *arg) 387 { 388 cfg.tlsextstatus = 1; 389 cfg.tlscstatp.timeout = strtonum(arg, 0, INT_MAX, 390 &cfg.errstr); 391 if (cfg.errstr != NULL) { 392 BIO_printf(bio_err, "invalid argument %s: %s\n", 393 arg, cfg.errstr); 394 return (1); 395 } 396 return (0); 397 } 398 399 static int 400 s_server_opt_status_url(char *arg) 401 { 402 cfg.tlsextstatus = 1; 403 if (!OCSP_parse_url(arg, &cfg.tlscstatp.host, 404 &cfg.tlscstatp.port, &cfg.tlscstatp.path, 405 &cfg.tlscstatp.use_ssl)) { 406 BIO_printf(bio_err, "Error parsing URL\n"); 407 return (1); 408 } 409 return (0); 410 } 411 412 static int 413 s_server_opt_status_verbose(void) 414 { 415 cfg.tlsextstatus = 1; 416 cfg.tlscstatp.verbose = 1; 417 return (0); 418 } 419 420 static int 421 s_server_opt_verify(char *arg) 422 { 423 cfg.server_verify = SSL_VERIFY_PEER | 424 SSL_VERIFY_CLIENT_ONCE; 425 verify_depth = strtonum(arg, 0, INT_MAX, &cfg.errstr); 426 if (cfg.errstr != NULL) { 427 BIO_printf(bio_err, "invalid argument %s: %s\n", 428 arg, cfg.errstr); 429 return (1); 430 } 431 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 432 return (0); 433 } 434 435 static int 436 s_server_opt_verify_fail(char *arg) 437 { 438 cfg.server_verify = SSL_VERIFY_PEER | 439 SSL_VERIFY_FAIL_IF_NO_PEER_CERT | SSL_VERIFY_CLIENT_ONCE; 440 verify_depth = strtonum(arg, 0, INT_MAX, &cfg.errstr); 441 if (cfg.errstr != NULL) { 442 BIO_printf(bio_err, "invalid argument %s: %s\n", 443 arg, cfg.errstr); 444 return (1); 445 } 446 BIO_printf(bio_err, "verify depth is %d, must return a certificate\n", 447 verify_depth); 448 return (0); 449 } 450 451 static int 452 s_server_opt_verify_param(int argc, char **argv, int *argsused) 453 { 454 char **pargs = argv; 455 int pargc = argc; 456 int badarg = 0; 457 458 if (!args_verify(&pargs, &pargc, &badarg, bio_err, 459 &cfg.vpm)) { 460 BIO_printf(bio_err, "unknown option %s\n", *argv); 461 return (1); 462 } 463 if (badarg) 464 return (1); 465 466 *argsused = argc - pargc; 467 return (0); 468 } 469 470 static const struct option s_server_options[] = { 471 { 472 .name = "4", 473 .type = OPTION_DISCARD, 474 }, 475 { 476 .name = "6", 477 .type = OPTION_DISCARD, 478 }, 479 { 480 .name = "accept", 481 .argname = "port", 482 .desc = "Port to accept on (default is 4433)", 483 .type = OPTION_ARG_FUNC, 484 .opt.argfunc = s_server_opt_port, 485 }, 486 { 487 .name = "alpn", 488 .argname = "protocols", 489 .desc = "Set the advertised protocols for the ALPN extension" 490 " (comma-separated list)", 491 .type = OPTION_ARG, 492 .opt.arg = &cfg.alpn_in, 493 }, 494 { 495 .name = "bugs", 496 .desc = "Turn on SSL bug compatibility", 497 .type = OPTION_FLAG, 498 .opt.flag = &cfg.bugs, 499 }, 500 { 501 .name = "CAfile", 502 .argname = "file", 503 .desc = "PEM format file of CA certificates", 504 .type = OPTION_ARG, 505 .opt.arg = &cfg.CAfile, 506 }, 507 { 508 .name = "CApath", 509 .argname = "directory", 510 .desc = "PEM format directory of CA certificates", 511 .type = OPTION_ARG, 512 .opt.arg = &cfg.CApath, 513 }, 514 { 515 .name = "cert", 516 .argname = "file", 517 .desc = "Certificate file to use\n" 518 "(default is " TEST_CERT ")", 519 .type = OPTION_ARG, 520 .opt.arg = &cfg.cert_file, 521 }, 522 { 523 .name = "cert2", 524 .argname = "file", 525 .desc = "Certificate file to use for servername\n" 526 "(default is " TEST_CERT2 ")", 527 .type = OPTION_ARG, 528 .opt.arg = &cfg.cert_file2, 529 }, 530 { 531 .name = "certform", 532 .argname = "fmt", 533 .desc = "Certificate format (PEM or DER) PEM default", 534 .type = OPTION_ARG_FORMAT, 535 .opt.value = &cfg.cert_format, 536 }, 537 #ifndef OPENSSL_NO_DTLS 538 { 539 .name = "chain", 540 .type = OPTION_FLAG, 541 .opt.flag = &cfg.cert_chain, 542 }, 543 #endif 544 { 545 .name = "cipher", 546 .argname = "list", 547 .desc = "List of ciphers to enable (see `openssl ciphers`)", 548 .type = OPTION_ARG, 549 .opt.arg = &cfg.cipher, 550 }, 551 { 552 .name = "context", 553 .argname = "id", 554 .desc = "Set session ID context", 555 .type = OPTION_ARG_FUNC, 556 .opt.argfunc = s_server_opt_context, 557 }, 558 { 559 .name = "crlf", 560 .desc = "Convert LF from terminal into CRLF", 561 .type = OPTION_FLAG, 562 .opt.flag = &cfg.crlf, 563 }, 564 { 565 .name = "dcert", 566 .argname = "file", 567 .desc = "Second certificate file to use (usually for DSA)", 568 .type = OPTION_ARG, 569 .opt.arg = &cfg.dcert_file, 570 }, 571 { 572 .name = "dcertform", 573 .argname = "fmt", 574 .desc = "Second certificate format (PEM or DER) PEM default", 575 .type = OPTION_ARG_FORMAT, 576 .opt.value = &cfg.dcert_format, 577 }, 578 { 579 .name = "debug", 580 .desc = "Print more output", 581 .type = OPTION_FLAG, 582 .opt.flag = &cfg.debug, 583 }, 584 { 585 .name = "dhparam", 586 .argname = "file", 587 .desc = "DH parameter file to use, in cert file if not specified", 588 .type = OPTION_ARG, 589 .opt.arg = &cfg.dhfile, 590 }, 591 { 592 .name = "dkey", 593 .argname = "file", 594 .desc = "Second private key file to use (usually for DSA)", 595 .type = OPTION_ARG, 596 .opt.arg = &cfg.dkey_file, 597 }, 598 { 599 .name = "dkeyform", 600 .argname = "fmt", 601 .desc = "Second key format (PEM or DER) PEM default", 602 .type = OPTION_ARG_FORMAT, 603 .opt.value = &cfg.dkey_format, 604 }, 605 { 606 .name = "dpass", 607 .argname = "arg", 608 .desc = "Second private key file pass phrase source", 609 .type = OPTION_ARG, 610 .opt.arg = &cfg.dpassarg, 611 }, 612 #ifndef OPENSSL_NO_DTLS 613 { 614 .name = "dtls", 615 .desc = "Use any version of DTLS", 616 .type = OPTION_FUNC, 617 .opt.func = s_server_opt_protocol_version_dtls, 618 }, 619 #endif 620 #ifndef OPENSSL_NO_DTLS1_2 621 { 622 .name = "dtls1_2", 623 .desc = "Just use DTLSv1.2", 624 .type = OPTION_FUNC, 625 .opt.func = s_server_opt_protocol_version_dtls1_2, 626 }, 627 #endif 628 { 629 .name = "groups", 630 .argname = "list", 631 .desc = "Specify EC groups (colon-separated list)", 632 .type = OPTION_ARG, 633 .opt.arg = &cfg.groups_in, 634 }, 635 { 636 .name = "HTTP", 637 .desc = "Respond to a 'GET /<path> HTTP/1.0' with file ./<path>", 638 .type = OPTION_VALUE, 639 .opt.value = &cfg.www, 640 .value = 3, 641 }, 642 { 643 .name = "id_prefix", 644 .argname = "arg", 645 .desc = "Generate SSL/TLS session IDs prefixed by 'arg'", 646 .type = OPTION_ARG, 647 .opt.arg = &cfg.session_id_prefix, 648 }, 649 { 650 .name = "key", 651 .argname = "file", 652 .desc = "Private Key file to use, in cert file if\n" 653 "not specified (default is " TEST_CERT ")", 654 .type = OPTION_ARG, 655 .opt.arg = &cfg.key_file, 656 }, 657 { 658 .name = "key2", 659 .argname = "file", 660 .desc = "Private Key file to use for servername, in cert file if\n" 661 "not specified (default is " TEST_CERT2 ")", 662 .type = OPTION_ARG, 663 .opt.arg = &cfg.key_file2, 664 }, 665 { 666 .name = "keyform", 667 .argname = "fmt", 668 .desc = "Key format (PEM or DER) PEM default", 669 .type = OPTION_ARG_FORMAT, 670 .opt.value = &cfg.key_format, 671 }, 672 { 673 .name = "keymatexport", 674 .argname = "label", 675 .desc = "Export keying material using label", 676 .type = OPTION_ARG, 677 .opt.arg = &cfg.keymatexportlabel, 678 }, 679 { 680 .name = "keymatexportlen", 681 .argname = "len", 682 .desc = "Export len bytes of keying material (default 20)", 683 .type = OPTION_ARG_FUNC, 684 .opt.argfunc = s_server_opt_keymatexportlen, 685 }, 686 { 687 .name = "legacy_renegotiation", 688 .type = OPTION_DISCARD, 689 }, 690 { 691 .name = "msg", 692 .desc = "Show protocol messages", 693 .type = OPTION_FLAG, 694 .opt.flag = &cfg.msg, 695 }, 696 #ifndef OPENSSL_NO_DTLS 697 { 698 .name = "mtu", 699 .argname = "mtu", 700 .desc = "Set link layer MTU", 701 .type = OPTION_ARG_FUNC, 702 .opt.argfunc = s_server_opt_mtu, 703 }, 704 #endif 705 { 706 .name = "naccept", 707 .argname = "num", 708 .desc = "Terminate after num connections", 709 .type = OPTION_ARG_INT, 710 .opt.value = &cfg.naccept 711 }, 712 { 713 .name = "named_curve", 714 .argname = "arg", 715 .type = OPTION_ARG, 716 .opt.arg = &cfg.named_curve, 717 }, 718 { 719 .name = "nbio", 720 .desc = "Run with non-blocking I/O", 721 .type = OPTION_FLAG, 722 .opt.flag = &cfg.nbio, 723 }, 724 { 725 .name = "nbio_test", 726 .desc = "Test with the non-blocking test bio", 727 .type = OPTION_FUNC, 728 .opt.func = s_server_opt_nbio_test, 729 }, 730 { 731 .name = "nextprotoneg", 732 .argname = "arg", 733 .type = OPTION_ARG, 734 .opt.arg = &cfg.npn_in, /* Ignored. */ 735 }, 736 { 737 .name = "no_cache", 738 .desc = "Disable session cache", 739 .type = OPTION_FLAG, 740 .opt.flag = &cfg.no_cache, 741 }, 742 { 743 .name = "no_comp", 744 .desc = "Disable SSL/TLS compression", 745 .type = OPTION_VALUE_OR, 746 .opt.value = &cfg.off, 747 .value = SSL_OP_NO_COMPRESSION, 748 }, 749 { 750 .name = "no_dhe", 751 .desc = "Disable ephemeral DH", 752 .type = OPTION_FLAG, 753 .opt.flag = &cfg.no_dhe, 754 }, 755 { 756 .name = "no_ecdhe", 757 .desc = "Disable ephemeral ECDH", 758 .type = OPTION_FLAG, 759 .opt.flag = &cfg.no_ecdhe, 760 }, 761 { 762 .name = "no_ticket", 763 .desc = "Disable use of RFC4507bis session tickets", 764 .type = OPTION_VALUE_OR, 765 .opt.value = &cfg.off, 766 .value = SSL_OP_NO_TICKET, 767 }, 768 { 769 .name = "no_ssl2", 770 .type = OPTION_DISCARD, 771 }, 772 { 773 .name = "no_ssl3", 774 .type = OPTION_DISCARD, 775 }, 776 { 777 .name = "no_tls1", 778 .type = OPTION_DISCARD, 779 }, 780 { 781 .name = "no_tls1_1", 782 .type = OPTION_DISCARD, 783 }, 784 { 785 .name = "no_tls1_2", 786 .desc = "Just disable TLSv1.2", 787 .type = OPTION_VALUE_OR, 788 .opt.value = &cfg.off, 789 .value = SSL_OP_NO_TLSv1_2, 790 }, 791 { 792 .name = "no_tls1_3", 793 .desc = "Just disable TLSv1.3", 794 .type = OPTION_VALUE_OR, 795 .opt.value = &cfg.off, 796 .value = SSL_OP_NO_TLSv1_3, 797 }, 798 { 799 .name = "no_tmp_rsa", 800 .type = OPTION_DISCARD, 801 }, 802 { 803 .name = "nocert", 804 .desc = "Don't use any certificates (Anon-DH)", 805 .type = OPTION_FLAG, 806 .opt.flag = &cfg.nocert, 807 }, 808 { 809 .name = "pass", 810 .argname = "arg", 811 .desc = "Private key file pass phrase source", 812 .type = OPTION_ARG, 813 .opt.arg = &cfg.passarg, 814 }, 815 { 816 .name = "port", 817 .argname = "port", 818 .type = OPTION_ARG_FUNC, 819 .opt.argfunc = s_server_opt_port, 820 }, 821 { 822 .name = "quiet", 823 .desc = "Inhibit printing of session and certificate information", 824 .type = OPTION_FLAG, 825 .opt.flag = &cfg.quiet, 826 }, 827 { 828 .name = "servername", 829 .argname = "name", 830 .desc = "Servername for HostName TLS extension", 831 .type = OPTION_ARG, 832 .opt.arg = &cfg.tlsextcbp.servername, 833 }, 834 { 835 .name = "servername_fatal", 836 .desc = "On mismatch send fatal alert (default warning alert)", 837 .type = OPTION_VALUE, 838 .opt.value = &cfg.tlsextcbp.extension_error, 839 .value = SSL_TLSEXT_ERR_ALERT_FATAL, 840 }, 841 { 842 .name = "serverpref", 843 .desc = "Use server's cipher preferences", 844 .type = OPTION_VALUE_OR, 845 .opt.value = &cfg.off, 846 .value = SSL_OP_CIPHER_SERVER_PREFERENCE, 847 }, 848 { 849 .name = "state", 850 .desc = "Print the SSL states", 851 .type = OPTION_FLAG, 852 .opt.flag = &cfg.state, 853 }, 854 { 855 .name = "status", 856 .desc = "Respond to certificate status requests", 857 .type = OPTION_FLAG, 858 .opt.flag = &cfg.tlsextstatus, 859 }, 860 { 861 .name = "status_timeout", 862 .argname = "nsec", 863 .desc = "Status request responder timeout", 864 .type = OPTION_ARG_FUNC, 865 .opt.argfunc = s_server_opt_status_timeout, 866 }, 867 { 868 .name = "status_url", 869 .argname = "url", 870 .desc = "Status request fallback URL", 871 .type = OPTION_ARG_FUNC, 872 .opt.argfunc = s_server_opt_status_url, 873 }, 874 { 875 .name = "status_verbose", 876 .desc = "Enable status request verbose printout", 877 .type = OPTION_FUNC, 878 .opt.func = s_server_opt_status_verbose, 879 }, 880 #ifndef OPENSSL_NO_DTLS 881 { 882 .name = "timeout", 883 .desc = "Enable timeouts", 884 .type = OPTION_FLAG, 885 .opt.flag = &cfg.enable_timeouts, 886 }, 887 #endif 888 { 889 .name = "tls1_2", 890 .desc = "Just talk TLSv1.2", 891 .type = OPTION_FUNC, 892 .opt.func = s_server_opt_protocol_version_tls1_2, 893 }, 894 { 895 .name = "tls1_3", 896 .desc = "Just talk TLSv1.3", 897 .type = OPTION_FUNC, 898 .opt.func = s_server_opt_protocol_version_tls1_3, 899 }, 900 { 901 .name = "tlsextdebug", 902 .desc = "Hex dump of all TLS extensions received", 903 .type = OPTION_FLAG, 904 .opt.flag = &cfg.tlsextdebug, 905 }, 906 #ifndef OPENSSL_NO_SRTP 907 { 908 .name = "use_srtp", 909 .argname = "profiles", 910 .desc = "Offer SRTP key management with a colon-separated profile list", 911 .type = OPTION_ARG, 912 .opt.arg = &cfg.srtp_profiles, 913 }, 914 #endif 915 { 916 .name = "Verify", 917 .argname = "depth", 918 .desc = "Turn on peer certificate verification, must have a cert", 919 .type = OPTION_ARG_FUNC, 920 .opt.argfunc = s_server_opt_verify_fail, 921 }, 922 { 923 .name = "verify", 924 .argname = "depth", 925 .desc = "Turn on peer certificate verification", 926 .type = OPTION_ARG_FUNC, 927 .opt.argfunc = s_server_opt_verify, 928 }, 929 { 930 .name = "verify_return_error", 931 .desc = "Return verification error", 932 .type = OPTION_FLAG, 933 .opt.flag = &verify_return_error, 934 }, 935 { 936 .name = "WWW", 937 .desc = "Respond to a 'GET /<path> HTTP/1.0' with file ./<path>", 938 .type = OPTION_VALUE, 939 .opt.value = &cfg.www, 940 .value = 2, 941 }, 942 { 943 .name = "www", 944 .desc = "Respond to a 'GET /' with a status page", 945 .type = OPTION_VALUE, 946 .opt.value = &cfg.www, 947 .value = 1, 948 }, 949 { 950 .name = NULL, 951 .desc = "", 952 .type = OPTION_ARGV_FUNC, 953 .opt.argvfunc = s_server_opt_verify_param, 954 }, 955 { NULL }, 956 }; 957 958 static void 959 s_server_init(void) 960 { 961 accept_socket = -1; 962 cfg.cipher = NULL; 963 cfg.server_verify = SSL_VERIFY_NONE; 964 cfg.dcert_file = NULL; 965 cfg.dkey_file = NULL; 966 cfg.cert_file = TEST_CERT; 967 cfg.key_file = NULL; 968 cfg.cert_file2 = TEST_CERT2; 969 cfg.key_file2 = NULL; 970 ctx2 = NULL; 971 cfg.nbio = 0; 972 cfg.nbio_test = 0; 973 ctx = NULL; 974 cfg.www = 0; 975 976 bio_s_out = NULL; 977 cfg.debug = 0; 978 cfg.msg = 0; 979 cfg.quiet = 0; 980 } 981 982 static void 983 sv_usage(void) 984 { 985 fprintf(stderr, "usage: s_server " 986 "[-accept port] [-alpn protocols] [-bugs] [-CAfile file]\n" 987 " [-CApath directory] [-cert file] [-cert2 file]\n" 988 " [-certform der | pem] [-cipher cipherlist]\n" 989 " [-context id] [-crl_check] [-crl_check_all] [-crlf]\n" 990 " [-dcert file] [-dcertform der | pem] [-debug]\n" 991 " [-dhparam file] [-dkey file] [-dkeyform der | pem]\n" 992 " [-dpass arg] [-dtls] [-dtls1_2] [-groups list] [-HTTP]\n" 993 " [-id_prefix arg] [-key keyfile] [-key2 keyfile]\n" 994 " [-keyform der | pem] [-keymatexport label]\n" 995 " [-keymatexportlen len] [-msg] [-mtu mtu] [-naccept num]\n" 996 " [-named_curve arg] [-nbio] [-nbio_test] [-no_cache]\n" 997 " [-no_dhe] [-no_ecdhe] [-no_ticket] \n" 998 " [-no_tls1_2] [-no_tls1_3] [-no_tmp_rsa]\n" 999 " [-nocert] [-pass arg] [-quiet] [-servername name]\n" 1000 " [-servername_fatal] [-serverpref] [-state] [-status]\n" 1001 " [-status_timeout nsec] [-status_url url]\n" 1002 " [-status_verbose] [-timeout] \n" 1003 " [-tls1_2] [-tls1_3] [-tlsextdebug] [-use_srtp profiles]\n" 1004 " [-Verify depth] [-verify depth] [-verify_return_error]\n" 1005 " [-WWW] [-www]\n"); 1006 fprintf(stderr, "\n"); 1007 options_usage(s_server_options); 1008 fprintf(stderr, "\n"); 1009 } 1010 1011 int 1012 s_server_main(int argc, char *argv[]) 1013 { 1014 int ret = 1; 1015 char *pass = NULL; 1016 char *dpass = NULL; 1017 X509 *s_cert = NULL, *s_dcert = NULL; 1018 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 1019 EVP_PKEY *s_key2 = NULL; 1020 X509 *s_cert2 = NULL; 1021 tlsextalpnctx alpn_ctx = { NULL, 0 }; 1022 1023 if (pledge("stdio rpath inet dns tty", NULL) == -1) { 1024 perror("pledge"); 1025 exit(1); 1026 } 1027 1028 memset(&cfg, 0, sizeof(cfg)); 1029 cfg.keymatexportlen = 20; 1030 cfg.meth = TLS_server_method(); 1031 cfg.naccept = -1; 1032 cfg.port = PORT; 1033 cfg.cert_file = TEST_CERT; 1034 cfg.cert_file2 = TEST_CERT2; 1035 cfg.cert_format = FORMAT_PEM; 1036 cfg.dcert_format = FORMAT_PEM; 1037 cfg.dkey_format = FORMAT_PEM; 1038 cfg.key_format = FORMAT_PEM; 1039 cfg.server_verify = SSL_VERIFY_NONE; 1040 cfg.socket_type = SOCK_STREAM; 1041 cfg.tlscstatp.timeout = -1; 1042 cfg.tlsextcbp.extension_error = 1043 SSL_TLSEXT_ERR_ALERT_WARNING; 1044 1045 local_argc = argc; 1046 local_argv = argv; 1047 1048 s_server_init(); 1049 1050 verify_depth = 0; 1051 1052 if (options_parse(argc, argv, s_server_options, NULL, NULL) != 0) { 1053 if (cfg.errstr == NULL) 1054 sv_usage(); 1055 goto end; 1056 } 1057 1058 if (!app_passwd(bio_err, cfg.passarg, 1059 cfg.dpassarg, &pass, &dpass)) { 1060 BIO_printf(bio_err, "Error getting password\n"); 1061 goto end; 1062 } 1063 if (cfg.key_file == NULL) 1064 cfg.key_file = cfg.cert_file; 1065 if (cfg.key_file2 == NULL) 1066 cfg.key_file2 = cfg.cert_file2; 1067 1068 if (cfg.nocert == 0) { 1069 s_key = load_key(bio_err, cfg.key_file, 1070 cfg.key_format, 0, pass, 1071 "server certificate private key file"); 1072 if (!s_key) { 1073 ERR_print_errors(bio_err); 1074 goto end; 1075 } 1076 s_cert = load_cert(bio_err, cfg.cert_file, 1077 cfg.cert_format, 1078 NULL, "server certificate file"); 1079 1080 if (!s_cert) { 1081 ERR_print_errors(bio_err); 1082 goto end; 1083 } 1084 if (cfg.tlsextcbp.servername) { 1085 s_key2 = load_key(bio_err, cfg.key_file2, 1086 cfg.key_format, 0, pass, 1087 "second server certificate private key file"); 1088 if (!s_key2) { 1089 ERR_print_errors(bio_err); 1090 goto end; 1091 } 1092 s_cert2 = load_cert(bio_err, cfg.cert_file2, 1093 cfg.cert_format, 1094 NULL, "second server certificate file"); 1095 1096 if (!s_cert2) { 1097 ERR_print_errors(bio_err); 1098 goto end; 1099 } 1100 } 1101 } 1102 alpn_ctx.data = NULL; 1103 if (cfg.alpn_in) { 1104 unsigned short len; 1105 alpn_ctx.data = next_protos_parse(&len, 1106 cfg.alpn_in); 1107 if (alpn_ctx.data == NULL) 1108 goto end; 1109 alpn_ctx.len = len; 1110 } 1111 1112 if (cfg.dcert_file) { 1113 1114 if (cfg.dkey_file == NULL) 1115 cfg.dkey_file = cfg.dcert_file; 1116 1117 s_dkey = load_key(bio_err, cfg.dkey_file, 1118 cfg.dkey_format, 1119 0, dpass, "second certificate private key file"); 1120 if (!s_dkey) { 1121 ERR_print_errors(bio_err); 1122 goto end; 1123 } 1124 s_dcert = load_cert(bio_err, cfg.dcert_file, 1125 cfg.dcert_format, 1126 NULL, "second server certificate file"); 1127 1128 if (!s_dcert) { 1129 ERR_print_errors(bio_err); 1130 goto end; 1131 } 1132 } 1133 if (bio_s_out == NULL) { 1134 if (cfg.quiet && !cfg.debug && 1135 !cfg.msg) { 1136 bio_s_out = BIO_new(BIO_s_null()); 1137 } else { 1138 if (bio_s_out == NULL) 1139 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE); 1140 } 1141 } 1142 if (cfg.nocert) { 1143 cfg.cert_file = NULL; 1144 cfg.key_file = NULL; 1145 cfg.dcert_file = NULL; 1146 cfg.dkey_file = NULL; 1147 cfg.cert_file2 = NULL; 1148 cfg.key_file2 = NULL; 1149 } 1150 ctx = SSL_CTX_new(cfg.meth); 1151 if (ctx == NULL) { 1152 ERR_print_errors(bio_err); 1153 goto end; 1154 } 1155 1156 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 1157 1158 if (!SSL_CTX_set_min_proto_version(ctx, cfg.min_version)) 1159 goto end; 1160 if (!SSL_CTX_set_max_proto_version(ctx, cfg.max_version)) 1161 goto end; 1162 1163 if (cfg.session_id_prefix) { 1164 if (strlen(cfg.session_id_prefix) >= 32) 1165 BIO_printf(bio_err, 1166 "warning: id_prefix is too long, only one new session will be possible\n"); 1167 else if (strlen(cfg.session_id_prefix) >= 16) 1168 BIO_printf(bio_err, 1169 "warning: id_prefix is too long if you use SSLv2\n"); 1170 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 1171 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1172 ERR_print_errors(bio_err); 1173 goto end; 1174 } 1175 BIO_printf(bio_err, "id_prefix '%s' set.\n", 1176 cfg.session_id_prefix); 1177 } 1178 SSL_CTX_set_quiet_shutdown(ctx, 1); 1179 if (cfg.bugs) 1180 SSL_CTX_set_options(ctx, SSL_OP_ALL); 1181 SSL_CTX_set_options(ctx, cfg.off); 1182 1183 if (cfg.state) 1184 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1185 if (cfg.no_cache) 1186 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 1187 else 1188 SSL_CTX_sess_set_cache_size(ctx, 128); 1189 1190 #ifndef OPENSSL_NO_SRTP 1191 if (cfg.srtp_profiles != NULL) 1192 SSL_CTX_set_tlsext_use_srtp(ctx, cfg.srtp_profiles); 1193 #endif 1194 1195 if ((!SSL_CTX_load_verify_locations(ctx, cfg.CAfile, 1196 cfg.CApath)) || 1197 (!SSL_CTX_set_default_verify_paths(ctx))) { 1198 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */ 1199 ERR_print_errors(bio_err); 1200 /* goto end; */ 1201 } 1202 if (cfg.vpm) 1203 SSL_CTX_set1_param(ctx, cfg.vpm); 1204 1205 if (s_cert2) { 1206 ctx2 = SSL_CTX_new(cfg.meth); 1207 if (ctx2 == NULL) { 1208 ERR_print_errors(bio_err); 1209 goto end; 1210 } 1211 1212 if (!SSL_CTX_set_min_proto_version(ctx2, 1213 cfg.min_version)) 1214 goto end; 1215 if (!SSL_CTX_set_max_proto_version(ctx2, 1216 cfg.max_version)) 1217 goto end; 1218 SSL_CTX_clear_mode(ctx2, SSL_MODE_AUTO_RETRY); 1219 } 1220 if (ctx2) { 1221 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 1222 1223 if (cfg.session_id_prefix) { 1224 if (strlen(cfg.session_id_prefix) >= 32) 1225 BIO_printf(bio_err, 1226 "warning: id_prefix is too long, only one new session will be possible\n"); 1227 else if (strlen(cfg.session_id_prefix) >= 16) 1228 BIO_printf(bio_err, 1229 "warning: id_prefix is too long if you use SSLv2\n"); 1230 if (!SSL_CTX_set_generate_session_id(ctx2, 1231 generate_session_id)) { 1232 BIO_printf(bio_err, 1233 "error setting 'id_prefix'\n"); 1234 ERR_print_errors(bio_err); 1235 goto end; 1236 } 1237 BIO_printf(bio_err, "id_prefix '%s' set.\n", 1238 cfg.session_id_prefix); 1239 } 1240 SSL_CTX_set_quiet_shutdown(ctx2, 1); 1241 if (cfg.bugs) 1242 SSL_CTX_set_options(ctx2, SSL_OP_ALL); 1243 SSL_CTX_set_options(ctx2, cfg.off); 1244 1245 if (cfg.state) 1246 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 1247 1248 if (cfg.no_cache) 1249 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 1250 else 1251 SSL_CTX_sess_set_cache_size(ctx2, 128); 1252 1253 if ((!SSL_CTX_load_verify_locations(ctx2, 1254 cfg.CAfile, cfg.CApath)) || 1255 (!SSL_CTX_set_default_verify_paths(ctx2))) { 1256 ERR_print_errors(bio_err); 1257 } 1258 if (cfg.vpm) 1259 SSL_CTX_set1_param(ctx2, cfg.vpm); 1260 } 1261 if (alpn_ctx.data) 1262 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 1263 1264 if (cfg.groups_in != NULL) { 1265 if (SSL_CTX_set1_groups_list(ctx, cfg.groups_in) != 1) { 1266 BIO_printf(bio_err, "Failed to set groups '%s'\n", 1267 cfg.groups_in); 1268 goto end; 1269 } 1270 } 1271 1272 #ifndef OPENSSL_NO_DH 1273 if (!cfg.no_dhe) { 1274 DH *dh = NULL; 1275 1276 if (cfg.dhfile) 1277 dh = load_dh_param(cfg.dhfile); 1278 else if (cfg.cert_file) 1279 dh = load_dh_param(cfg.cert_file); 1280 1281 if (dh != NULL) 1282 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1283 else 1284 BIO_printf(bio_s_out, "Using auto DH parameters\n"); 1285 (void) BIO_flush(bio_s_out); 1286 1287 if (dh == NULL) 1288 SSL_CTX_set_dh_auto(ctx, 1); 1289 else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { 1290 BIO_printf(bio_err, 1291 "Error setting temp DH parameters\n"); 1292 ERR_print_errors(bio_err); 1293 DH_free(dh); 1294 goto end; 1295 } 1296 1297 if (ctx2) { 1298 if (!cfg.dhfile) { 1299 DH *dh2 = NULL; 1300 1301 if (cfg.cert_file2 != NULL) 1302 dh2 = load_dh_param( 1303 cfg.cert_file2); 1304 if (dh2 != NULL) { 1305 BIO_printf(bio_s_out, 1306 "Setting temp DH parameters\n"); 1307 (void) BIO_flush(bio_s_out); 1308 1309 DH_free(dh); 1310 dh = dh2; 1311 } 1312 } 1313 if (dh == NULL) 1314 SSL_CTX_set_dh_auto(ctx2, 1); 1315 else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { 1316 BIO_printf(bio_err, 1317 "Error setting temp DH parameters\n"); 1318 ERR_print_errors(bio_err); 1319 DH_free(dh); 1320 goto end; 1321 } 1322 } 1323 DH_free(dh); 1324 } 1325 #endif 1326 1327 if (!cfg.no_ecdhe && cfg.named_curve != NULL) { 1328 EC_KEY *ecdh = NULL; 1329 int nid; 1330 1331 if ((nid = OBJ_sn2nid(cfg.named_curve)) == 0) { 1332 BIO_printf(bio_err, "unknown curve name (%s)\n", 1333 cfg.named_curve); 1334 goto end; 1335 } 1336 if ((ecdh = EC_KEY_new_by_curve_name(nid)) == NULL) { 1337 BIO_printf(bio_err, "unable to create curve (%s)\n", 1338 cfg.named_curve); 1339 goto end; 1340 } 1341 BIO_printf(bio_s_out, "Setting temp ECDH parameters\n"); 1342 (void) BIO_flush(bio_s_out); 1343 1344 SSL_CTX_set_tmp_ecdh(ctx, ecdh); 1345 if (ctx2) 1346 SSL_CTX_set_tmp_ecdh(ctx2, ecdh); 1347 EC_KEY_free(ecdh); 1348 } 1349 1350 if (!set_cert_key_stuff(ctx, s_cert, s_key)) 1351 goto end; 1352 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2)) 1353 goto end; 1354 if (s_dcert != NULL) { 1355 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey)) 1356 goto end; 1357 } 1358 1359 if (cfg.cipher != NULL) { 1360 if (!SSL_CTX_set_cipher_list(ctx, cfg.cipher)) { 1361 BIO_printf(bio_err, "error setting cipher list\n"); 1362 ERR_print_errors(bio_err); 1363 goto end; 1364 } 1365 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2, 1366 cfg.cipher)) { 1367 BIO_printf(bio_err, "error setting cipher list\n"); 1368 ERR_print_errors(bio_err); 1369 goto end; 1370 } 1371 } 1372 SSL_CTX_set_verify(ctx, cfg.server_verify, verify_callback); 1373 SSL_CTX_set_session_id_context(ctx, 1374 (void *) &s_server_session_id_context, 1375 sizeof s_server_session_id_context); 1376 1377 /* Set DTLS cookie generation and verification callbacks */ 1378 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 1379 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 1380 1381 if (ctx2) { 1382 SSL_CTX_set_verify(ctx2, cfg.server_verify, 1383 verify_callback); 1384 SSL_CTX_set_session_id_context(ctx2, 1385 (void *) &s_server_session_id_context, 1386 sizeof s_server_session_id_context); 1387 1388 cfg.tlsextcbp.biodebug = bio_s_out; 1389 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 1390 SSL_CTX_set_tlsext_servername_arg(ctx2, 1391 &cfg.tlsextcbp); 1392 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1393 SSL_CTX_set_tlsext_servername_arg(ctx, 1394 &cfg.tlsextcbp); 1395 } 1396 1397 if (cfg.CAfile != NULL) { 1398 SSL_CTX_set_client_CA_list(ctx, 1399 SSL_load_client_CA_file(cfg.CAfile)); 1400 if (ctx2) 1401 SSL_CTX_set_client_CA_list(ctx2, 1402 SSL_load_client_CA_file(cfg.CAfile)); 1403 } 1404 BIO_printf(bio_s_out, "ACCEPT\n"); 1405 (void) BIO_flush(bio_s_out); 1406 if (cfg.www) 1407 do_server(cfg.port, cfg.socket_type, 1408 &accept_socket, www_body, cfg.context, 1409 cfg.naccept); 1410 else 1411 do_server(cfg.port, cfg.socket_type, 1412 &accept_socket, sv_body, cfg.context, 1413 cfg.naccept); 1414 print_stats(bio_s_out, ctx); 1415 ret = 0; 1416 end: 1417 SSL_CTX_free(ctx); 1418 X509_free(s_cert); 1419 X509_free(s_dcert); 1420 EVP_PKEY_free(s_key); 1421 EVP_PKEY_free(s_dkey); 1422 free(pass); 1423 free(dpass); 1424 X509_VERIFY_PARAM_free(cfg.vpm); 1425 free(cfg.tlscstatp.host); 1426 free(cfg.tlscstatp.port); 1427 free(cfg.tlscstatp.path); 1428 SSL_CTX_free(ctx2); 1429 X509_free(s_cert2); 1430 EVP_PKEY_free(s_key2); 1431 free(alpn_ctx.data); 1432 if (bio_s_out != NULL) { 1433 BIO_free(bio_s_out); 1434 bio_s_out = NULL; 1435 } 1436 1437 return (ret); 1438 } 1439 1440 static void 1441 print_stats(BIO *bio, SSL_CTX *ssl_ctx) 1442 { 1443 BIO_printf(bio, "%4ld items in the session cache\n", 1444 SSL_CTX_sess_number(ssl_ctx)); 1445 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 1446 SSL_CTX_sess_connect(ssl_ctx)); 1447 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 1448 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 1449 BIO_printf(bio, "%4ld client connects that finished\n", 1450 SSL_CTX_sess_connect_good(ssl_ctx)); 1451 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 1452 SSL_CTX_sess_accept(ssl_ctx)); 1453 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 1454 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 1455 BIO_printf(bio, "%4ld server accepts that finished\n", 1456 SSL_CTX_sess_accept_good(ssl_ctx)); 1457 BIO_printf(bio, "%4ld session cache hits\n", 1458 SSL_CTX_sess_hits(ssl_ctx)); 1459 BIO_printf(bio, "%4ld session cache misses\n", 1460 SSL_CTX_sess_misses(ssl_ctx)); 1461 BIO_printf(bio, "%4ld session cache timeouts\n", 1462 SSL_CTX_sess_timeouts(ssl_ctx)); 1463 BIO_printf(bio, "%4ld callback cache hits\n", 1464 SSL_CTX_sess_cb_hits(ssl_ctx)); 1465 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 1466 SSL_CTX_sess_cache_full(ssl_ctx), 1467 SSL_CTX_sess_get_cache_size(ssl_ctx)); 1468 } 1469 1470 static int 1471 sv_body(int s, unsigned char *context) 1472 { 1473 char *buf = NULL; 1474 int ret = 1; 1475 int k, i; 1476 unsigned long l; 1477 SSL *con = NULL; 1478 BIO *sbio; 1479 struct timeval timeout; 1480 1481 if ((buf = malloc(bufsize)) == NULL) { 1482 BIO_printf(bio_err, "out of memory\n"); 1483 goto err; 1484 } 1485 if (cfg.nbio) { 1486 if (!cfg.quiet) 1487 BIO_printf(bio_err, "turning on non blocking io\n"); 1488 if (!BIO_socket_nbio(s, 1)) 1489 ERR_print_errors(bio_err); 1490 } 1491 1492 if (con == NULL) { 1493 con = SSL_new(ctx); 1494 if (cfg.tlsextdebug) { 1495 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1496 SSL_set_tlsext_debug_arg(con, bio_s_out); 1497 } 1498 if (cfg.tlsextstatus) { 1499 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 1500 cfg.tlscstatp.err = bio_err; 1501 SSL_CTX_set_tlsext_status_arg(ctx, 1502 &cfg.tlscstatp); 1503 } 1504 if (context) 1505 SSL_set_session_id_context(con, context, 1506 strlen((char *) context)); 1507 } 1508 SSL_clear(con); 1509 1510 if (SSL_is_dtls(con)) { 1511 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1512 1513 if (cfg.enable_timeouts) { 1514 timeout.tv_sec = 0; 1515 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1516 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, 1517 &timeout); 1518 1519 timeout.tv_sec = 0; 1520 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1521 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, 1522 &timeout); 1523 } 1524 if (cfg.socket_mtu > 28) { 1525 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1526 SSL_set_mtu(con, cfg.socket_mtu - 28); 1527 } else 1528 /* want to do MTU discovery */ 1529 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1530 1531 /* turn on cookie exchange */ 1532 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 1533 } else 1534 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1535 1536 if (cfg.nbio_test) { 1537 BIO *test; 1538 1539 test = BIO_new(BIO_f_nbio_test()); 1540 sbio = BIO_push(test, sbio); 1541 } 1542 1543 SSL_set_bio(con, sbio, sbio); 1544 SSL_set_accept_state(con); 1545 /* SSL_set_fd(con,s); */ 1546 1547 if (cfg.debug) { 1548 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1549 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1550 } 1551 if (cfg.msg) { 1552 SSL_set_msg_callback(con, msg_cb); 1553 SSL_set_msg_callback_arg(con, bio_s_out); 1554 } 1555 if (cfg.tlsextdebug) { 1556 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1557 SSL_set_tlsext_debug_arg(con, bio_s_out); 1558 } 1559 1560 for (;;) { 1561 int read_from_terminal; 1562 int read_from_sslcon; 1563 struct pollfd pfd[2]; 1564 int ptimeout; 1565 1566 read_from_terminal = 0; 1567 read_from_sslcon = SSL_pending(con); 1568 1569 if (!read_from_sslcon) { 1570 pfd[0].fd = fileno(stdin); 1571 pfd[0].events = POLLIN; 1572 pfd[1].fd = s; 1573 pfd[1].events = POLLIN; 1574 1575 if (SSL_is_dtls(con) && 1576 DTLSv1_get_timeout(con, &timeout)) 1577 ptimeout = timeout.tv_sec * 1000 + 1578 timeout.tv_usec / 1000; 1579 else 1580 ptimeout = -1; 1581 1582 i = poll(pfd, 2, ptimeout); 1583 1584 if (SSL_is_dtls(con) && 1585 DTLSv1_handle_timeout(con) > 0) 1586 BIO_printf(bio_err, "TIMEOUT occured\n"); 1587 if (i <= 0) 1588 continue; 1589 if (pfd[0].revents) { 1590 if ((pfd[0].revents & (POLLERR|POLLNVAL))) 1591 continue; 1592 read_from_terminal = 1; 1593 } 1594 if (pfd[1].revents) { 1595 if ((pfd[1].revents & (POLLERR|POLLNVAL))) 1596 continue; 1597 read_from_sslcon = 1; 1598 } 1599 } 1600 if (read_from_terminal) { 1601 if (cfg.crlf) { 1602 int j, lf_num; 1603 1604 i = read(fileno(stdin), buf, bufsize / 2); 1605 lf_num = 0; 1606 /* both loops are skipped when i <= 0 */ 1607 for (j = 0; j < i; j++) 1608 if (buf[j] == '\n') 1609 lf_num++; 1610 for (j = i - 1; j >= 0; j--) { 1611 buf[j + lf_num] = buf[j]; 1612 if (buf[j] == '\n') { 1613 lf_num--; 1614 i++; 1615 buf[j + lf_num] = '\r'; 1616 } 1617 } 1618 assert(lf_num == 0); 1619 } else 1620 i = read(fileno(stdin), buf, bufsize); 1621 if (!cfg.quiet) { 1622 if ((i <= 0) || (buf[0] == 'Q')) { 1623 BIO_printf(bio_s_out, "DONE\n"); 1624 shutdown(s, SHUT_RD); 1625 close(s); 1626 close_accept_socket(); 1627 ret = -11; 1628 goto err; 1629 } 1630 if ((i <= 0) || (buf[0] == 'q')) { 1631 BIO_printf(bio_s_out, "DONE\n"); 1632 if (!SSL_is_dtls(con)) { 1633 shutdown(s, SHUT_RD); 1634 close(s); 1635 } 1636 /* 1637 * close_accept_socket(); ret= -11; 1638 */ 1639 goto err; 1640 } 1641 if ((buf[0] == 'r') && 1642 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1643 SSL_renegotiate(con); 1644 i = SSL_do_handshake(con); 1645 printf("SSL_do_handshake -> %d\n", i); 1646 i = 0; /* 13; */ 1647 continue; 1648 /* 1649 * RE-NEGOTIATE\n"); 1650 */ 1651 } 1652 if ((buf[0] == 'R') && 1653 ((buf[1] == '\n') || (buf[1] == '\r'))) { 1654 SSL_set_verify(con, 1655 SSL_VERIFY_PEER | 1656 SSL_VERIFY_CLIENT_ONCE, 1657 NULL); 1658 SSL_renegotiate(con); 1659 i = SSL_do_handshake(con); 1660 printf("SSL_do_handshake -> %d\n", i); 1661 i = 0; /* 13; */ 1662 continue; 1663 /* 1664 * RE-NEGOTIATE asking for client 1665 * cert\n"); 1666 */ 1667 } 1668 if (buf[0] == 'P') { 1669 static const char *str = 1670 "Lets print some clear text\n"; 1671 BIO_write(SSL_get_wbio(con), str, 1672 strlen(str)); 1673 } 1674 if (buf[0] == 'S') { 1675 print_stats(bio_s_out, 1676 SSL_get_SSL_CTX(con)); 1677 } 1678 } 1679 l = k = 0; 1680 for (;;) { 1681 /* should do a select for the write */ 1682 #ifdef RENEG 1683 { 1684 static count = 0; 1685 if (++count == 100) { 1686 count = 0; 1687 SSL_renegotiate(con); 1688 } 1689 } 1690 #endif 1691 k = SSL_write(con, &(buf[l]), (unsigned int) i); 1692 switch (SSL_get_error(con, k)) { 1693 case SSL_ERROR_NONE: 1694 break; 1695 case SSL_ERROR_WANT_WRITE: 1696 case SSL_ERROR_WANT_READ: 1697 case SSL_ERROR_WANT_X509_LOOKUP: 1698 BIO_printf(bio_s_out, "Write BLOCK\n"); 1699 break; 1700 case SSL_ERROR_SYSCALL: 1701 case SSL_ERROR_SSL: 1702 BIO_printf(bio_s_out, "ERROR\n"); 1703 ERR_print_errors(bio_err); 1704 ret = 1; 1705 goto err; 1706 /* break; */ 1707 case SSL_ERROR_ZERO_RETURN: 1708 BIO_printf(bio_s_out, "DONE\n"); 1709 ret = 1; 1710 goto err; 1711 } 1712 if (k <= 0) 1713 continue; 1714 l += k; 1715 i -= k; 1716 if (i <= 0) 1717 break; 1718 } 1719 } 1720 if (read_from_sslcon) { 1721 if (!SSL_is_init_finished(con)) { 1722 i = init_ssl_connection(con); 1723 1724 if (i < 0) { 1725 ret = 0; 1726 goto err; 1727 } else if (i == 0) { 1728 ret = 1; 1729 goto err; 1730 } 1731 } else { 1732 again: 1733 i = SSL_read(con, (char *) buf, bufsize); 1734 switch (SSL_get_error(con, i)) { 1735 case SSL_ERROR_NONE: { 1736 int len, n; 1737 for (len = 0; len < i;) { 1738 do { 1739 n = write(fileno(stdout), buf + len, i - len); 1740 } while (n == -1 && errno == EINTR); 1741 1742 if (n == -1) { 1743 BIO_printf(bio_s_out, "ERROR\n"); 1744 goto err; 1745 } 1746 len += n; 1747 } 1748 } 1749 if (SSL_pending(con)) 1750 goto again; 1751 break; 1752 case SSL_ERROR_WANT_WRITE: 1753 case SSL_ERROR_WANT_READ: 1754 BIO_printf(bio_s_out, "Read BLOCK\n"); 1755 break; 1756 case SSL_ERROR_SYSCALL: 1757 case SSL_ERROR_SSL: 1758 BIO_printf(bio_s_out, "ERROR\n"); 1759 ERR_print_errors(bio_err); 1760 ret = 1; 1761 goto err; 1762 case SSL_ERROR_ZERO_RETURN: 1763 BIO_printf(bio_s_out, "DONE\n"); 1764 ret = 1; 1765 goto err; 1766 } 1767 } 1768 } 1769 } 1770 err: 1771 if (con != NULL) { 1772 BIO_printf(bio_s_out, "shutting down SSL\n"); 1773 SSL_set_shutdown(con, 1774 SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 1775 SSL_free(con); 1776 } 1777 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 1778 freezero(buf, bufsize); 1779 if (ret >= 0) 1780 BIO_printf(bio_s_out, "ACCEPT\n"); 1781 return (ret); 1782 } 1783 1784 static void 1785 close_accept_socket(void) 1786 { 1787 BIO_printf(bio_err, "shutdown accept socket\n"); 1788 if (accept_socket >= 0) { 1789 shutdown(accept_socket, SHUT_RDWR); 1790 close(accept_socket); 1791 } 1792 } 1793 1794 static int 1795 init_ssl_connection(SSL *con) 1796 { 1797 int i; 1798 const char *str; 1799 X509 *peer; 1800 long verify_error; 1801 char buf[BUFSIZ]; 1802 unsigned char *exportedkeymat; 1803 1804 i = SSL_accept(con); 1805 if (i <= 0) { 1806 if (BIO_sock_should_retry(i)) { 1807 BIO_printf(bio_s_out, "DELAY\n"); 1808 return (1); 1809 } 1810 BIO_printf(bio_err, "ERROR\n"); 1811 verify_error = SSL_get_verify_result(con); 1812 if (verify_error != X509_V_OK) { 1813 BIO_printf(bio_err, "verify error:%s\n", 1814 X509_verify_cert_error_string(verify_error)); 1815 } else 1816 ERR_print_errors(bio_err); 1817 return (0); 1818 } 1819 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 1820 1821 peer = SSL_get_peer_certificate(con); 1822 if (peer != NULL) { 1823 BIO_printf(bio_s_out, "Client certificate\n"); 1824 PEM_write_bio_X509(bio_s_out, peer); 1825 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 1826 BIO_printf(bio_s_out, "subject=%s\n", buf); 1827 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 1828 BIO_printf(bio_s_out, "issuer=%s\n", buf); 1829 X509_free(peer); 1830 } 1831 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL) 1832 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 1833 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 1834 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 1835 1836 #ifndef OPENSSL_NO_SRTP 1837 { 1838 SRTP_PROTECTION_PROFILE *srtp_profile 1839 = SSL_get_selected_srtp_profile(con); 1840 1841 if (srtp_profile) 1842 BIO_printf(bio_s_out, 1843 "SRTP Extension negotiated, profile=%s\n", 1844 srtp_profile->name); 1845 } 1846 #endif 1847 if (SSL_cache_hit(con)) 1848 BIO_printf(bio_s_out, "Reused session-id\n"); 1849 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", 1850 SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); 1851 if (cfg.keymatexportlabel != NULL) { 1852 BIO_printf(bio_s_out, "Keying material exporter:\n"); 1853 BIO_printf(bio_s_out, " Label: '%s'\n", 1854 cfg.keymatexportlabel); 1855 BIO_printf(bio_s_out, " Length: %i bytes\n", 1856 cfg.keymatexportlen); 1857 exportedkeymat = malloc(cfg.keymatexportlen); 1858 if (exportedkeymat != NULL) { 1859 if (!SSL_export_keying_material(con, exportedkeymat, 1860 cfg.keymatexportlen, 1861 cfg.keymatexportlabel, 1862 strlen(cfg.keymatexportlabel), 1863 NULL, 0, 0)) { 1864 BIO_printf(bio_s_out, " Error\n"); 1865 } else { 1866 BIO_printf(bio_s_out, " Keying material: "); 1867 for (i = 0; i < cfg.keymatexportlen; i++) 1868 BIO_printf(bio_s_out, "%02X", 1869 exportedkeymat[i]); 1870 BIO_printf(bio_s_out, "\n"); 1871 } 1872 free(exportedkeymat); 1873 } 1874 } 1875 return (1); 1876 } 1877 1878 #ifndef OPENSSL_NO_DH 1879 static DH * 1880 load_dh_param(const char *dhfile) 1881 { 1882 DH *ret = NULL; 1883 BIO *bio; 1884 1885 if ((bio = BIO_new_file(dhfile, "r")) == NULL) 1886 goto err; 1887 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); 1888 err: 1889 BIO_free(bio); 1890 return (ret); 1891 } 1892 #endif 1893 1894 static int 1895 www_body(int s, unsigned char *context) 1896 { 1897 char *buf = NULL; 1898 int ret = 1; 1899 int i, j, k, dot; 1900 SSL *con; 1901 const SSL_CIPHER *c; 1902 BIO *io, *ssl_bio, *sbio; 1903 1904 buf = malloc(bufsize); 1905 if (buf == NULL) 1906 return (0); 1907 io = BIO_new(BIO_f_buffer()); 1908 ssl_bio = BIO_new(BIO_f_ssl()); 1909 if ((io == NULL) || (ssl_bio == NULL)) 1910 goto err; 1911 1912 if (cfg.nbio) { 1913 if (!cfg.quiet) 1914 BIO_printf(bio_err, "turning on non blocking io\n"); 1915 if (!BIO_socket_nbio(s, 1)) 1916 ERR_print_errors(bio_err); 1917 } 1918 1919 /* lets make the output buffer a reasonable size */ 1920 if (!BIO_set_write_buffer_size(io, bufsize)) 1921 goto err; 1922 1923 if ((con = SSL_new(ctx)) == NULL) 1924 goto err; 1925 if (cfg.tlsextdebug) { 1926 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1927 SSL_set_tlsext_debug_arg(con, bio_s_out); 1928 } 1929 if (context) 1930 SSL_set_session_id_context(con, context, 1931 strlen((char *) context)); 1932 1933 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1934 if (cfg.nbio_test) { 1935 BIO *test; 1936 1937 test = BIO_new(BIO_f_nbio_test()); 1938 sbio = BIO_push(test, sbio); 1939 } 1940 SSL_set_bio(con, sbio, sbio); 1941 SSL_set_accept_state(con); 1942 1943 /* SSL_set_fd(con,s); */ 1944 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 1945 BIO_push(io, ssl_bio); 1946 1947 if (cfg.debug) { 1948 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 1949 BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); 1950 } 1951 if (cfg.msg) { 1952 SSL_set_msg_callback(con, msg_cb); 1953 SSL_set_msg_callback_arg(con, bio_s_out); 1954 } 1955 for (;;) { 1956 i = BIO_gets(io, buf, bufsize - 1); 1957 if (i < 0) { /* error */ 1958 if (!BIO_should_retry(io)) { 1959 if (!cfg.quiet) 1960 ERR_print_errors(bio_err); 1961 goto err; 1962 } else { 1963 if (cfg.debug) { 1964 BIO_printf(bio_s_out, "read R BLOCK\n"); 1965 sleep(1); 1966 } 1967 continue; 1968 } 1969 } else if (i == 0) { /* end of input */ 1970 ret = 1; 1971 goto end; 1972 } 1973 /* else we have data */ 1974 if (((cfg.www == 1) && 1975 (strncmp("GET ", buf, 4) == 0)) || 1976 ((cfg.www == 2) && 1977 (strncmp("GET /stats ", buf, 11) == 0))) { 1978 char *p; 1979 X509 *peer; 1980 STACK_OF(SSL_CIPHER) *sk; 1981 static const char *space = " "; 1982 1983 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 1984 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 1985 BIO_puts(io, "<pre>\n"); 1986 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/ 1987 BIO_puts(io, "\n"); 1988 for (i = 0; i < local_argc; i++) { 1989 BIO_puts(io, local_argv[i]); 1990 BIO_write(io, " ", 1); 1991 } 1992 BIO_puts(io, "\n"); 1993 1994 BIO_printf(io, 1995 "Secure Renegotiation IS%s supported\n", 1996 SSL_get_secure_renegotiation_support(con) ? 1997 "" : " NOT"); 1998 1999 /* 2000 * The following is evil and should not really be 2001 * done 2002 */ 2003 BIO_printf(io, 2004 "Ciphers supported in s_server binary\n"); 2005 sk = SSL_get_ciphers(con); 2006 j = sk_SSL_CIPHER_num(sk); 2007 for (i = 0; i < j; i++) { 2008 c = sk_SSL_CIPHER_value(sk, i); 2009 BIO_printf(io, "%-11s:%-25s", 2010 SSL_CIPHER_get_version(c), 2011 SSL_CIPHER_get_name(c)); 2012 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 2013 BIO_puts(io, "\n"); 2014 } 2015 BIO_puts(io, "\n"); 2016 p = SSL_get_shared_ciphers(con, buf, bufsize); 2017 if (p != NULL) { 2018 BIO_printf(io, 2019 "---\nCiphers common between both SSL end points:\n"); 2020 j = i = 0; 2021 while (*p) { 2022 if (*p == ':') { 2023 BIO_write(io, space, 26 - j); 2024 i++; 2025 j = 0; 2026 BIO_write(io, 2027 ((i % 3) ? " " : "\n"), 1); 2028 } else { 2029 BIO_write(io, p, 1); 2030 j++; 2031 } 2032 p++; 2033 } 2034 BIO_puts(io, "\n"); 2035 } 2036 BIO_printf(io, (SSL_cache_hit(con) 2037 ? "---\nReused, " 2038 : "---\nNew, ")); 2039 c = SSL_get_current_cipher(con); 2040 BIO_printf(io, "%s, Cipher is %s\n", 2041 SSL_CIPHER_get_version(c), 2042 SSL_CIPHER_get_name(c)); 2043 SSL_SESSION_print(io, SSL_get_session(con)); 2044 BIO_printf(io, "---\n"); 2045 print_stats(io, SSL_get_SSL_CTX(con)); 2046 BIO_printf(io, "---\n"); 2047 peer = SSL_get_peer_certificate(con); 2048 if (peer != NULL) { 2049 BIO_printf(io, "Client certificate\n"); 2050 X509_print(io, peer); 2051 PEM_write_bio_X509(io, peer); 2052 } else 2053 BIO_puts(io, 2054 "no client certificate available\n"); 2055 BIO_puts(io, "</BODY></HTML>\r\n\r\n"); 2056 break; 2057 } else if ((cfg.www == 2 || 2058 cfg.www == 3) && 2059 (strncmp("GET /", buf, 5) == 0)) { 2060 BIO *file; 2061 char *p, *e; 2062 static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 2063 2064 /* skip the '/' */ 2065 p = &(buf[5]); 2066 2067 dot = 1; 2068 for (e = p; *e != '\0'; e++) { 2069 if (e[0] == ' ') 2070 break; 2071 2072 switch (dot) { 2073 case 1: 2074 dot = (e[0] == '.') ? 2 : 0; 2075 break; 2076 case 2: 2077 dot = (e[0] == '.') ? 3 : 0; 2078 break; 2079 case 3: 2080 dot = (e[0] == '/' || e[0] == '\\') ? 2081 -1 : 0; 2082 break; 2083 } 2084 if (dot == 0) 2085 dot = (e[0] == '/' || e[0] == '\\') ? 2086 1 : 0; 2087 } 2088 dot = (dot == 3) || (dot == -1); /* filename contains 2089 * ".." component */ 2090 2091 if (*e == '\0') { 2092 BIO_puts(io, text); 2093 BIO_printf(io, 2094 "'%s' is an invalid file name\r\n", p); 2095 break; 2096 } 2097 *e = '\0'; 2098 2099 if (dot) { 2100 BIO_puts(io, text); 2101 BIO_printf(io, 2102 "'%s' contains '..' reference\r\n", p); 2103 break; 2104 } 2105 if (*p == '/') { 2106 BIO_puts(io, text); 2107 BIO_printf(io, 2108 "'%s' is an invalid path\r\n", p); 2109 break; 2110 } 2111 /* if a directory, do the index thang */ 2112 if (app_isdir(p) > 0) { 2113 BIO_puts(io, text); 2114 BIO_printf(io, "'%s' is a directory\r\n", p); 2115 break; 2116 } 2117 if ((file = BIO_new_file(p, "r")) == NULL) { 2118 BIO_puts(io, text); 2119 BIO_printf(io, "Error opening '%s'\r\n", p); 2120 ERR_print_errors(io); 2121 break; 2122 } 2123 if (!cfg.quiet) 2124 BIO_printf(bio_err, "FILE:%s\n", p); 2125 2126 if (cfg.www == 2) { 2127 i = strlen(p); 2128 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 2129 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 2130 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 2131 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 2132 else 2133 BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 2134 } 2135 /* send the file */ 2136 for (;;) { 2137 i = BIO_read(file, buf, bufsize); 2138 if (i <= 0) 2139 break; 2140 2141 #ifdef RENEG 2142 total_bytes += i; 2143 fprintf(stderr, "%d\n", i); 2144 if (total_bytes > 3 * 1024) { 2145 total_bytes = 0; 2146 fprintf(stderr, "RENEGOTIATE\n"); 2147 SSL_renegotiate(con); 2148 } 2149 #endif 2150 2151 for (j = 0; j < i;) { 2152 #ifdef RENEG 2153 { 2154 static count = 0; 2155 if (++count == 13) { 2156 SSL_renegotiate(con); 2157 } 2158 } 2159 #endif 2160 k = BIO_write(io, &(buf[j]), i - j); 2161 if (k <= 0) { 2162 if (!BIO_should_retry(io)) 2163 goto write_error; 2164 else { 2165 BIO_printf(bio_s_out, 2166 "rwrite W BLOCK\n"); 2167 } 2168 } else { 2169 j += k; 2170 } 2171 } 2172 } 2173 write_error: 2174 BIO_free(file); 2175 break; 2176 } 2177 } 2178 2179 for (;;) { 2180 i = (int) BIO_flush(io); 2181 if (i <= 0) { 2182 if (!BIO_should_retry(io)) 2183 break; 2184 } else 2185 break; 2186 } 2187 end: 2188 /* make sure we re-use sessions */ 2189 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 2190 2191 err: 2192 2193 if (ret >= 0) 2194 BIO_printf(bio_s_out, "ACCEPT\n"); 2195 2196 free(buf); 2197 BIO_free_all(io); 2198 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/ 2199 return (ret); 2200 } 2201 2202 #define MAX_SESSION_ID_ATTEMPTS 10 2203 static int 2204 generate_session_id(const SSL *ssl, unsigned char *id, unsigned int *id_len) 2205 { 2206 unsigned int count = 0; 2207 do { 2208 arc4random_buf(id, *id_len); 2209 /* 2210 * Prefix the session_id with the required prefix. NB: If our 2211 * prefix is too long, clip it - but there will be worse 2212 * effects anyway, eg. the server could only possibly create 2213 * 1 session ID (ie. the prefix!) so all future session 2214 * negotiations will fail due to conflicts. 2215 */ 2216 memcpy(id, cfg.session_id_prefix, 2217 (strlen(cfg.session_id_prefix) < *id_len) ? 2218 strlen(cfg.session_id_prefix) : *id_len); 2219 } 2220 while (SSL_has_matching_session_id(ssl, id, *id_len) && 2221 (++count < MAX_SESSION_ID_ATTEMPTS)); 2222 if (count >= MAX_SESSION_ID_ATTEMPTS) 2223 return 0; 2224 return 1; 2225 } 2226 2227 static int 2228 ssl_servername_cb(SSL *s, int *ad, void *arg) 2229 { 2230 tlsextctx *p = (tlsextctx *) arg; 2231 const char *servername = SSL_get_servername(s, 2232 TLSEXT_NAMETYPE_host_name); 2233 2234 if (servername && p->biodebug) 2235 BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n", 2236 servername); 2237 2238 if (!p->servername) 2239 return SSL_TLSEXT_ERR_NOACK; 2240 2241 if (servername) { 2242 if (strcmp(servername, p->servername)) 2243 return p->extension_error; 2244 if (ctx2) { 2245 BIO_printf(p->biodebug, "Switching server context.\n"); 2246 SSL_set_SSL_CTX(s, ctx2); 2247 } 2248 } 2249 return SSL_TLSEXT_ERR_OK; 2250 } 2251 2252 /* Certificate Status callback. This is called when a client includes a 2253 * certificate status request extension. 2254 * 2255 * This is a simplified version. It examines certificates each time and 2256 * makes one OCSP responder query for each request. 2257 * 2258 * A full version would store details such as the OCSP certificate IDs and 2259 * minimise the number of OCSP responses by caching them until they were 2260 * considered "expired". 2261 */ 2262 2263 static int 2264 cert_status_cb(SSL *s, void *arg) 2265 { 2266 tlsextstatusctx *srctx = arg; 2267 BIO *err = srctx->err; 2268 char *host = NULL, *port = NULL, *path = NULL; 2269 int use_ssl; 2270 unsigned char *rspder = NULL; 2271 int rspderlen; 2272 STACK_OF(OPENSSL_STRING) *aia = NULL; 2273 X509 *x = NULL; 2274 X509_STORE_CTX *inctx = NULL; 2275 X509_OBJECT *obj = NULL; 2276 OCSP_REQUEST *req = NULL; 2277 OCSP_RESPONSE *resp = NULL; 2278 OCSP_CERTID *id = NULL; 2279 STACK_OF(X509_EXTENSION) *exts; 2280 int ret = SSL_TLSEXT_ERR_NOACK; 2281 int i; 2282 2283 if (srctx->verbose) 2284 BIO_puts(err, "cert_status: callback called\n"); 2285 /* Build up OCSP query from server certificate */ 2286 x = SSL_get_certificate(s); 2287 aia = X509_get1_ocsp(x); 2288 if (aia) { 2289 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0), 2290 &host, &port, &path, &use_ssl)) { 2291 BIO_puts(err, "cert_status: can't parse AIA URL\n"); 2292 goto err; 2293 } 2294 if (srctx->verbose) 2295 BIO_printf(err, "cert_status: AIA URL: %s\n", 2296 sk_OPENSSL_STRING_value(aia, 0)); 2297 } else { 2298 if (!srctx->host) { 2299 BIO_puts(srctx->err, 2300 "cert_status: no AIA and no default responder URL\n"); 2301 goto done; 2302 } 2303 host = srctx->host; 2304 path = srctx->path; 2305 port = srctx->port; 2306 use_ssl = srctx->use_ssl; 2307 } 2308 2309 if ((inctx = X509_STORE_CTX_new()) == NULL) 2310 goto err; 2311 2312 if (!X509_STORE_CTX_init(inctx, 2313 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), 2314 NULL, NULL)) 2315 goto err; 2316 if ((obj = X509_OBJECT_new()) == NULL) 2317 goto done; 2318 if (X509_STORE_get_by_subject(inctx, X509_LU_X509, 2319 X509_get_issuer_name(x), obj) <= 0) { 2320 BIO_puts(err, 2321 "cert_status: Can't retrieve issuer certificate.\n"); 2322 X509_STORE_CTX_cleanup(inctx); 2323 goto done; 2324 } 2325 req = OCSP_REQUEST_new(); 2326 if (!req) 2327 goto err; 2328 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj)); 2329 X509_OBJECT_free(obj); 2330 obj = NULL; 2331 X509_STORE_CTX_free(inctx); 2332 inctx = NULL; 2333 if (!id) 2334 goto err; 2335 if (!OCSP_request_add0_id(req, id)) 2336 goto err; 2337 id = NULL; 2338 /* Add any extensions to the request */ 2339 SSL_get_tlsext_status_exts(s, &exts); 2340 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { 2341 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); 2342 if (!OCSP_REQUEST_add_ext(req, ext, -1)) 2343 goto err; 2344 } 2345 resp = process_responder(err, req, host, path, port, use_ssl, NULL, 2346 srctx->timeout); 2347 if (!resp) { 2348 BIO_puts(err, "cert_status: error querying responder\n"); 2349 goto done; 2350 } 2351 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); 2352 if (rspderlen <= 0) 2353 goto err; 2354 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); 2355 if (srctx->verbose) { 2356 BIO_puts(err, "cert_status: ocsp response sent:\n"); 2357 OCSP_RESPONSE_print(err, resp, 2); 2358 } 2359 ret = SSL_TLSEXT_ERR_OK; 2360 done: 2361 X509_STORE_CTX_free(inctx); 2362 X509_OBJECT_free(obj); 2363 if (ret != SSL_TLSEXT_ERR_OK) 2364 ERR_print_errors(err); 2365 if (aia) { 2366 free(host); 2367 free(path); 2368 free(port); 2369 X509_email_free(aia); 2370 } 2371 if (id) 2372 OCSP_CERTID_free(id); 2373 if (req) 2374 OCSP_REQUEST_free(req); 2375 if (resp) 2376 OCSP_RESPONSE_free(resp); 2377 return ret; 2378 err: 2379 ret = SSL_TLSEXT_ERR_ALERT_FATAL; 2380 goto done; 2381 } 2382 2383 static int 2384 alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 2385 const unsigned char *in, unsigned int inlen, void *arg) 2386 { 2387 tlsextalpnctx *alpn_ctx = arg; 2388 2389 if (!cfg.quiet) { 2390 /* We can assume that in is syntactically valid. */ 2391 unsigned i; 2392 2393 BIO_printf(bio_s_out, 2394 "ALPN protocols advertised by the client: "); 2395 for (i = 0; i < inlen; ) { 2396 if (i) 2397 BIO_write(bio_s_out, ", ", 2); 2398 BIO_write(bio_s_out, &in[i + 1], in[i]); 2399 i += in[i] + 1; 2400 } 2401 BIO_write(bio_s_out, "\n", 1); 2402 } 2403 2404 if (SSL_select_next_proto((unsigned char**)out, outlen, alpn_ctx->data, 2405 alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED) 2406 return (SSL_TLSEXT_ERR_NOACK); 2407 2408 if (!cfg.quiet) { 2409 BIO_printf(bio_s_out, "ALPN protocols selected: "); 2410 BIO_write(bio_s_out, *out, *outlen); 2411 BIO_write(bio_s_out, "\n", 1); 2412 } 2413 2414 return (SSL_TLSEXT_ERR_OK); 2415 } 2416