1 /* 2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved 4 * Copyright 2005 Nokia. All rights reserved. 5 * 6 * Licensed under the OpenSSL license (the "License"). You may not use 7 * this file except in compliance with the License. You can obtain a copy 8 * in the file LICENSE in the source distribution or at 9 * https://www.openssl.org/source/license.html 10 */ 11 12 #include <ctype.h> 13 #include <stdio.h> 14 #include <stdlib.h> 15 #include <string.h> 16 #if defined(_WIN32) 17 /* Included before async.h to avoid some warnings */ 18 # include <windows.h> 19 #endif 20 21 #include <openssl/e_os2.h> 22 #include <openssl/async.h> 23 #include <openssl/ssl.h> 24 25 #ifndef OPENSSL_NO_SOCK 26 27 /* 28 * With IPv6, it looks like Digital has mixed up the proper order of 29 * recursive header file inclusion, resulting in the compiler complaining 30 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is 31 * needed to have fileno() declared correctly... So let's define u_int 32 */ 33 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) 34 # define __U_INT 35 typedef unsigned int u_int; 36 #endif 37 38 #include <openssl/bn.h> 39 #include "apps.h" 40 #include "progs.h" 41 #include <openssl/err.h> 42 #include <openssl/pem.h> 43 #include <openssl/x509.h> 44 #include <openssl/ssl.h> 45 #include <openssl/rand.h> 46 #include <openssl/ocsp.h> 47 #ifndef OPENSSL_NO_DH 48 # include <openssl/dh.h> 49 #endif 50 #ifndef OPENSSL_NO_RSA 51 # include <openssl/rsa.h> 52 #endif 53 #ifndef OPENSSL_NO_SRP 54 # include <openssl/srp.h> 55 #endif 56 #include "s_apps.h" 57 #include "timeouts.h" 58 #ifdef CHARSET_EBCDIC 59 #include <openssl/ebcdic.h> 60 #endif 61 #include "internal/sockets.h" 62 63 static int not_resumable_sess_cb(SSL *s, int is_forward_secure); 64 static int sv_body(int s, int stype, int prot, unsigned char *context); 65 static int www_body(int s, int stype, int prot, unsigned char *context); 66 static int rev_body(int s, int stype, int prot, unsigned char *context); 67 static void close_accept_socket(void); 68 static int init_ssl_connection(SSL *s); 69 static void print_stats(BIO *bp, SSL_CTX *ctx); 70 static int generate_session_id(SSL *ssl, unsigned char *id, 71 unsigned int *id_len); 72 static void init_session_cache_ctx(SSL_CTX *sctx); 73 static void free_sessions(void); 74 #ifndef OPENSSL_NO_DH 75 static DH *load_dh_param(const char *dhfile); 76 #endif 77 static void print_connection_info(SSL *con); 78 79 static const int bufsize = 16 * 1024; 80 static int accept_socket = -1; 81 82 #define TEST_CERT "server.pem" 83 #define TEST_CERT2 "server2.pem" 84 85 static int s_nbio = 0; 86 static int s_nbio_test = 0; 87 static int s_crlf = 0; 88 static SSL_CTX *ctx = NULL; 89 static SSL_CTX *ctx2 = NULL; 90 static int www = 0; 91 92 static BIO *bio_s_out = NULL; 93 static BIO *bio_s_msg = NULL; 94 static int s_debug = 0; 95 static int s_tlsextdebug = 0; 96 static int s_msg = 0; 97 static int s_quiet = 0; 98 static int s_ign_eof = 0; 99 static int s_brief = 0; 100 101 static char *keymatexportlabel = NULL; 102 static int keymatexportlen = 20; 103 104 static int async = 0; 105 106 static const char *session_id_prefix = NULL; 107 108 #ifndef OPENSSL_NO_DTLS 109 static int enable_timeouts = 0; 110 static long socket_mtu; 111 #endif 112 113 /* 114 * We define this but make it always be 0 in no-dtls builds to simplify the 115 * code. 116 */ 117 static int dtlslisten = 0; 118 static int stateless = 0; 119 120 static int early_data = 0; 121 static SSL_SESSION *psksess = NULL; 122 123 static char *psk_identity = "Client_identity"; 124 char *psk_key = NULL; /* by default PSK is not used */ 125 126 #ifndef OPENSSL_NO_PSK 127 static unsigned int psk_server_cb(SSL *ssl, const char *identity, 128 unsigned char *psk, 129 unsigned int max_psk_len) 130 { 131 long key_len = 0; 132 unsigned char *key; 133 134 if (s_debug) 135 BIO_printf(bio_s_out, "psk_server_cb\n"); 136 if (identity == NULL) { 137 BIO_printf(bio_err, "Error: client did not send PSK identity\n"); 138 goto out_err; 139 } 140 if (s_debug) 141 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n", 142 (int)strlen(identity), identity); 143 144 /* here we could lookup the given identity e.g. from a database */ 145 if (strcmp(identity, psk_identity) != 0) { 146 BIO_printf(bio_s_out, "PSK warning: client identity not what we expected" 147 " (got '%s' expected '%s')\n", identity, psk_identity); 148 } else { 149 if (s_debug) 150 BIO_printf(bio_s_out, "PSK client identity found\n"); 151 } 152 153 /* convert the PSK key to binary */ 154 key = OPENSSL_hexstr2buf(psk_key, &key_len); 155 if (key == NULL) { 156 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 157 psk_key); 158 return 0; 159 } 160 if (key_len > (int)max_psk_len) { 161 BIO_printf(bio_err, 162 "psk buffer of callback is too small (%d) for key (%ld)\n", 163 max_psk_len, key_len); 164 OPENSSL_free(key); 165 return 0; 166 } 167 168 memcpy(psk, key, key_len); 169 OPENSSL_free(key); 170 171 if (s_debug) 172 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len); 173 return key_len; 174 out_err: 175 if (s_debug) 176 BIO_printf(bio_err, "Error in PSK server callback\n"); 177 (void)BIO_flush(bio_err); 178 (void)BIO_flush(bio_s_out); 179 return 0; 180 } 181 #endif 182 183 #define TLS13_AES_128_GCM_SHA256_BYTES ((const unsigned char *)"\x13\x01") 184 #define TLS13_AES_256_GCM_SHA384_BYTES ((const unsigned char *)"\x13\x02") 185 186 static int psk_find_session_cb(SSL *ssl, const unsigned char *identity, 187 size_t identity_len, SSL_SESSION **sess) 188 { 189 SSL_SESSION *tmpsess = NULL; 190 unsigned char *key; 191 long key_len; 192 const SSL_CIPHER *cipher = NULL; 193 194 if (strlen(psk_identity) != identity_len 195 || memcmp(psk_identity, identity, identity_len) != 0) { 196 *sess = NULL; 197 return 1; 198 } 199 200 if (psksess != NULL) { 201 SSL_SESSION_up_ref(psksess); 202 *sess = psksess; 203 return 1; 204 } 205 206 key = OPENSSL_hexstr2buf(psk_key, &key_len); 207 if (key == NULL) { 208 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 209 psk_key); 210 return 0; 211 } 212 213 /* We default to SHA256 */ 214 cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id); 215 if (cipher == NULL) { 216 BIO_printf(bio_err, "Error finding suitable ciphersuite\n"); 217 OPENSSL_free(key); 218 return 0; 219 } 220 221 tmpsess = SSL_SESSION_new(); 222 if (tmpsess == NULL 223 || !SSL_SESSION_set1_master_key(tmpsess, key, key_len) 224 || !SSL_SESSION_set_cipher(tmpsess, cipher) 225 || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) { 226 OPENSSL_free(key); 227 return 0; 228 } 229 OPENSSL_free(key); 230 *sess = tmpsess; 231 232 return 1; 233 } 234 235 #ifndef OPENSSL_NO_SRP 236 /* This is a context that we pass to callbacks */ 237 typedef struct srpsrvparm_st { 238 char *login; 239 SRP_VBASE *vb; 240 SRP_user_pwd *user; 241 } srpsrvparm; 242 static srpsrvparm srp_callback_parm; 243 244 /* 245 * This callback pretends to require some asynchronous logic in order to 246 * obtain a verifier. When the callback is called for a new connection we 247 * return with a negative value. This will provoke the accept etc to return 248 * with an LOOKUP_X509. The main logic of the reinvokes the suspended call 249 * (which would normally occur after a worker has finished) and we set the 250 * user parameters. 251 */ 252 static int ssl_srp_server_param_cb(SSL *s, int *ad, void *arg) 253 { 254 srpsrvparm *p = (srpsrvparm *) arg; 255 int ret = SSL3_AL_FATAL; 256 257 if (p->login == NULL && p->user == NULL) { 258 p->login = SSL_get_srp_username(s); 259 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login); 260 return -1; 261 } 262 263 if (p->user == NULL) { 264 BIO_printf(bio_err, "User %s doesn't exist\n", p->login); 265 goto err; 266 } 267 268 if (SSL_set_srp_server_param 269 (s, p->user->N, p->user->g, p->user->s, p->user->v, 270 p->user->info) < 0) { 271 *ad = SSL_AD_INTERNAL_ERROR; 272 goto err; 273 } 274 BIO_printf(bio_err, 275 "SRP parameters set: username = \"%s\" info=\"%s\" \n", 276 p->login, p->user->info); 277 ret = SSL_ERROR_NONE; 278 279 err: 280 SRP_user_pwd_free(p->user); 281 p->user = NULL; 282 p->login = NULL; 283 return ret; 284 } 285 286 #endif 287 288 static int local_argc = 0; 289 static char **local_argv; 290 291 #ifdef CHARSET_EBCDIC 292 static int ebcdic_new(BIO *bi); 293 static int ebcdic_free(BIO *a); 294 static int ebcdic_read(BIO *b, char *out, int outl); 295 static int ebcdic_write(BIO *b, const char *in, int inl); 296 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr); 297 static int ebcdic_gets(BIO *bp, char *buf, int size); 298 static int ebcdic_puts(BIO *bp, const char *str); 299 300 # define BIO_TYPE_EBCDIC_FILTER (18|0x0200) 301 static BIO_METHOD *methods_ebcdic = NULL; 302 303 /* This struct is "unwarranted chumminess with the compiler." */ 304 typedef struct { 305 size_t alloced; 306 char buff[1]; 307 } EBCDIC_OUTBUFF; 308 309 static const BIO_METHOD *BIO_f_ebcdic_filter() 310 { 311 if (methods_ebcdic == NULL) { 312 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER, 313 "EBCDIC/ASCII filter"); 314 if (methods_ebcdic == NULL 315 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write) 316 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read) 317 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts) 318 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets) 319 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl) 320 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new) 321 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free)) 322 return NULL; 323 } 324 return methods_ebcdic; 325 } 326 327 static int ebcdic_new(BIO *bi) 328 { 329 EBCDIC_OUTBUFF *wbuf; 330 331 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf"); 332 wbuf->alloced = 1024; 333 wbuf->buff[0] = '\0'; 334 335 BIO_set_data(bi, wbuf); 336 BIO_set_init(bi, 1); 337 return 1; 338 } 339 340 static int ebcdic_free(BIO *a) 341 { 342 EBCDIC_OUTBUFF *wbuf; 343 344 if (a == NULL) 345 return 0; 346 wbuf = BIO_get_data(a); 347 OPENSSL_free(wbuf); 348 BIO_set_data(a, NULL); 349 BIO_set_init(a, 0); 350 351 return 1; 352 } 353 354 static int ebcdic_read(BIO *b, char *out, int outl) 355 { 356 int ret = 0; 357 BIO *next = BIO_next(b); 358 359 if (out == NULL || outl == 0) 360 return 0; 361 if (next == NULL) 362 return 0; 363 364 ret = BIO_read(next, out, outl); 365 if (ret > 0) 366 ascii2ebcdic(out, out, ret); 367 return ret; 368 } 369 370 static int ebcdic_write(BIO *b, const char *in, int inl) 371 { 372 EBCDIC_OUTBUFF *wbuf; 373 BIO *next = BIO_next(b); 374 int ret = 0; 375 int num; 376 377 if ((in == NULL) || (inl <= 0)) 378 return 0; 379 if (next == NULL) 380 return 0; 381 382 wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b); 383 384 if (inl > (num = wbuf->alloced)) { 385 num = num + num; /* double the size */ 386 if (num < inl) 387 num = inl; 388 OPENSSL_free(wbuf); 389 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf"); 390 391 wbuf->alloced = num; 392 wbuf->buff[0] = '\0'; 393 394 BIO_set_data(b, wbuf); 395 } 396 397 ebcdic2ascii(wbuf->buff, in, inl); 398 399 ret = BIO_write(next, wbuf->buff, inl); 400 401 return ret; 402 } 403 404 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr) 405 { 406 long ret; 407 BIO *next = BIO_next(b); 408 409 if (next == NULL) 410 return 0; 411 switch (cmd) { 412 case BIO_CTRL_DUP: 413 ret = 0L; 414 break; 415 default: 416 ret = BIO_ctrl(next, cmd, num, ptr); 417 break; 418 } 419 return ret; 420 } 421 422 static int ebcdic_gets(BIO *bp, char *buf, int size) 423 { 424 int i, ret = 0; 425 BIO *next = BIO_next(bp); 426 427 if (next == NULL) 428 return 0; 429 /* return(BIO_gets(bp->next_bio,buf,size));*/ 430 for (i = 0; i < size - 1; ++i) { 431 ret = ebcdic_read(bp, &buf[i], 1); 432 if (ret <= 0) 433 break; 434 else if (buf[i] == '\n') { 435 ++i; 436 break; 437 } 438 } 439 if (i < size) 440 buf[i] = '\0'; 441 return (ret < 0 && i == 0) ? ret : i; 442 } 443 444 static int ebcdic_puts(BIO *bp, const char *str) 445 { 446 if (BIO_next(bp) == NULL) 447 return 0; 448 return ebcdic_write(bp, str, strlen(str)); 449 } 450 #endif 451 452 /* This is a context that we pass to callbacks */ 453 typedef struct tlsextctx_st { 454 char *servername; 455 BIO *biodebug; 456 int extension_error; 457 } tlsextctx; 458 459 static int ssl_servername_cb(SSL *s, int *ad, void *arg) 460 { 461 tlsextctx *p = (tlsextctx *) arg; 462 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 463 464 if (servername != NULL && p->biodebug != NULL) { 465 const char *cp = servername; 466 unsigned char uc; 467 468 BIO_printf(p->biodebug, "Hostname in TLS extension: \""); 469 while ((uc = *cp++) != 0) 470 BIO_printf(p->biodebug, 471 isascii(uc) && isprint(uc) ? "%c" : "\\x%02x", uc); 472 BIO_printf(p->biodebug, "\"\n"); 473 } 474 475 if (p->servername == NULL) 476 return SSL_TLSEXT_ERR_NOACK; 477 478 if (servername != NULL) { 479 if (strcasecmp(servername, p->servername)) 480 return p->extension_error; 481 if (ctx2 != NULL) { 482 BIO_printf(p->biodebug, "Switching server context.\n"); 483 SSL_set_SSL_CTX(s, ctx2); 484 } 485 } 486 return SSL_TLSEXT_ERR_OK; 487 } 488 489 /* Structure passed to cert status callback */ 490 typedef struct tlsextstatusctx_st { 491 int timeout; 492 /* File to load OCSP Response from (or NULL if no file) */ 493 char *respin; 494 /* Default responder to use */ 495 char *host, *path, *port; 496 int use_ssl; 497 int verbose; 498 } tlsextstatusctx; 499 500 static tlsextstatusctx tlscstatp = { -1 }; 501 502 #ifndef OPENSSL_NO_OCSP 503 504 /* 505 * Helper function to get an OCSP_RESPONSE from a responder. This is a 506 * simplified version. It examines certificates each time and makes one OCSP 507 * responder query for each request. A full version would store details such as 508 * the OCSP certificate IDs and minimise the number of OCSP responses by caching 509 * them until they were considered "expired". 510 */ 511 static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx, 512 OCSP_RESPONSE **resp) 513 { 514 char *host = NULL, *port = NULL, *path = NULL; 515 int use_ssl; 516 STACK_OF(OPENSSL_STRING) *aia = NULL; 517 X509 *x = NULL; 518 X509_STORE_CTX *inctx = NULL; 519 X509_OBJECT *obj; 520 OCSP_REQUEST *req = NULL; 521 OCSP_CERTID *id = NULL; 522 STACK_OF(X509_EXTENSION) *exts; 523 int ret = SSL_TLSEXT_ERR_NOACK; 524 int i; 525 526 /* Build up OCSP query from server certificate */ 527 x = SSL_get_certificate(s); 528 aia = X509_get1_ocsp(x); 529 if (aia != NULL) { 530 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0), 531 &host, &port, &path, &use_ssl)) { 532 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n"); 533 goto err; 534 } 535 if (srctx->verbose) 536 BIO_printf(bio_err, "cert_status: AIA URL: %s\n", 537 sk_OPENSSL_STRING_value(aia, 0)); 538 } else { 539 if (srctx->host == NULL) { 540 BIO_puts(bio_err, 541 "cert_status: no AIA and no default responder URL\n"); 542 goto done; 543 } 544 host = srctx->host; 545 path = srctx->path; 546 port = srctx->port; 547 use_ssl = srctx->use_ssl; 548 } 549 550 inctx = X509_STORE_CTX_new(); 551 if (inctx == NULL) 552 goto err; 553 if (!X509_STORE_CTX_init(inctx, 554 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), 555 NULL, NULL)) 556 goto err; 557 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509, 558 X509_get_issuer_name(x)); 559 if (obj == NULL) { 560 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n"); 561 goto done; 562 } 563 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj)); 564 X509_OBJECT_free(obj); 565 if (id == NULL) 566 goto err; 567 req = OCSP_REQUEST_new(); 568 if (req == NULL) 569 goto err; 570 if (!OCSP_request_add0_id(req, id)) 571 goto err; 572 id = NULL; 573 /* Add any extensions to the request */ 574 SSL_get_tlsext_status_exts(s, &exts); 575 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { 576 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); 577 if (!OCSP_REQUEST_add_ext(req, ext, -1)) 578 goto err; 579 } 580 *resp = process_responder(req, host, path, port, use_ssl, NULL, 581 srctx->timeout); 582 if (*resp == NULL) { 583 BIO_puts(bio_err, "cert_status: error querying responder\n"); 584 goto done; 585 } 586 587 ret = SSL_TLSEXT_ERR_OK; 588 goto done; 589 590 err: 591 ret = SSL_TLSEXT_ERR_ALERT_FATAL; 592 done: 593 /* 594 * If we parsed aia we need to free; otherwise they were copied and we 595 * don't 596 */ 597 if (aia != NULL) { 598 OPENSSL_free(host); 599 OPENSSL_free(path); 600 OPENSSL_free(port); 601 X509_email_free(aia); 602 } 603 OCSP_CERTID_free(id); 604 OCSP_REQUEST_free(req); 605 X509_STORE_CTX_free(inctx); 606 return ret; 607 } 608 609 /* 610 * Certificate Status callback. This is called when a client includes a 611 * certificate status request extension. The response is either obtained from a 612 * file, or from an OCSP responder. 613 */ 614 static int cert_status_cb(SSL *s, void *arg) 615 { 616 tlsextstatusctx *srctx = arg; 617 OCSP_RESPONSE *resp = NULL; 618 unsigned char *rspder = NULL; 619 int rspderlen; 620 int ret = SSL_TLSEXT_ERR_ALERT_FATAL; 621 622 if (srctx->verbose) 623 BIO_puts(bio_err, "cert_status: callback called\n"); 624 625 if (srctx->respin != NULL) { 626 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1); 627 if (derbio == NULL) { 628 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n"); 629 goto err; 630 } 631 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); 632 BIO_free(derbio); 633 if (resp == NULL) { 634 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n"); 635 goto err; 636 } 637 } else { 638 ret = get_ocsp_resp_from_responder(s, srctx, &resp); 639 if (ret != SSL_TLSEXT_ERR_OK) 640 goto err; 641 } 642 643 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); 644 if (rspderlen <= 0) 645 goto err; 646 647 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); 648 if (srctx->verbose) { 649 BIO_puts(bio_err, "cert_status: ocsp response sent:\n"); 650 OCSP_RESPONSE_print(bio_err, resp, 2); 651 } 652 653 ret = SSL_TLSEXT_ERR_OK; 654 655 err: 656 if (ret != SSL_TLSEXT_ERR_OK) 657 ERR_print_errors(bio_err); 658 659 OCSP_RESPONSE_free(resp); 660 661 return ret; 662 } 663 #endif 664 665 #ifndef OPENSSL_NO_NEXTPROTONEG 666 /* This is the context that we pass to next_proto_cb */ 667 typedef struct tlsextnextprotoctx_st { 668 unsigned char *data; 669 size_t len; 670 } tlsextnextprotoctx; 671 672 static int next_proto_cb(SSL *s, const unsigned char **data, 673 unsigned int *len, void *arg) 674 { 675 tlsextnextprotoctx *next_proto = arg; 676 677 *data = next_proto->data; 678 *len = next_proto->len; 679 680 return SSL_TLSEXT_ERR_OK; 681 } 682 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 683 684 /* This the context that we pass to alpn_cb */ 685 typedef struct tlsextalpnctx_st { 686 unsigned char *data; 687 size_t len; 688 } tlsextalpnctx; 689 690 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 691 const unsigned char *in, unsigned int inlen, void *arg) 692 { 693 tlsextalpnctx *alpn_ctx = arg; 694 695 if (!s_quiet) { 696 /* We can assume that |in| is syntactically valid. */ 697 unsigned int i; 698 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: "); 699 for (i = 0; i < inlen;) { 700 if (i) 701 BIO_write(bio_s_out, ", ", 2); 702 BIO_write(bio_s_out, &in[i + 1], in[i]); 703 i += in[i] + 1; 704 } 705 BIO_write(bio_s_out, "\n", 1); 706 } 707 708 if (SSL_select_next_proto 709 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in, 710 inlen) != OPENSSL_NPN_NEGOTIATED) { 711 return SSL_TLSEXT_ERR_NOACK; 712 } 713 714 if (!s_quiet) { 715 BIO_printf(bio_s_out, "ALPN protocols selected: "); 716 BIO_write(bio_s_out, *out, *outlen); 717 BIO_write(bio_s_out, "\n", 1); 718 } 719 720 return SSL_TLSEXT_ERR_OK; 721 } 722 723 static int not_resumable_sess_cb(SSL *s, int is_forward_secure) 724 { 725 /* disable resumption for sessions with forward secure ciphers */ 726 return is_forward_secure; 727 } 728 729 typedef enum OPTION_choice { 730 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ENGINE, 731 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT, 732 OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL, 733 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM, 734 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT, 735 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT, 736 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE, 737 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, 738 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, 739 OPT_VERIFYCAFILE, OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF, 740 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE, 741 OPT_STATUS_TIMEOUT, OPT_STATUS_URL, OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE, 742 OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE, 743 OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE, 744 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK, 745 OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW, 746 OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG, 747 OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF, 748 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, 749 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS, 750 OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL, 751 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, 752 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, 753 OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA, 754 OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, 755 OPT_R_ENUM, 756 OPT_S_ENUM, 757 OPT_V_ENUM, 758 OPT_X_ENUM 759 } OPTION_CHOICE; 760 761 const OPTIONS s_server_options[] = { 762 {"help", OPT_HELP, '-', "Display this summary"}, 763 {"port", OPT_PORT, 'p', 764 "TCP/IP port to listen on for connections (default is " PORT ")"}, 765 {"accept", OPT_ACCEPT, 's', 766 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"}, 767 #ifdef AF_UNIX 768 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"}, 769 #endif 770 {"4", OPT_4, '-', "Use IPv4 only"}, 771 {"6", OPT_6, '-', "Use IPv6 only"}, 772 #ifdef AF_UNIX 773 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"}, 774 #endif 775 {"context", OPT_CONTEXT, 's', "Set session ID context"}, 776 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"}, 777 {"Verify", OPT_UPPER_V_VERIFY, 'n', 778 "Turn on peer certificate verification, must have a cert"}, 779 {"cert", OPT_CERT, '<', "Certificate file to use; default is " TEST_CERT}, 780 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"}, 781 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"}, 782 {"serverinfo", OPT_SERVERINFO, 's', 783 "PEM serverinfo file for certificate"}, 784 {"certform", OPT_CERTFORM, 'F', 785 "Certificate format (PEM or DER) PEM default"}, 786 {"key", OPT_KEY, 's', 787 "Private Key if not in -cert; default is " TEST_CERT}, 788 {"keyform", OPT_KEYFORM, 'f', 789 "Key format (PEM, DER or ENGINE) PEM default"}, 790 {"pass", OPT_PASS, 's', "Private key file pass phrase source"}, 791 {"dcert", OPT_DCERT, '<', 792 "Second certificate file to use (usually for DSA)"}, 793 {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"}, 794 {"dcertform", OPT_DCERTFORM, 'F', 795 "Second certificate format (PEM or DER) PEM default"}, 796 {"dkey", OPT_DKEY, '<', 797 "Second private key file to use (usually for DSA)"}, 798 {"dkeyform", OPT_DKEYFORM, 'F', 799 "Second key format (PEM, DER or ENGINE) PEM default"}, 800 {"dpass", OPT_DPASS, 's', "Second private key file pass phrase source"}, 801 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"}, 802 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, 803 {"debug", OPT_DEBUG, '-', "Print more output"}, 804 {"msg", OPT_MSG, '-', "Show protocol messages"}, 805 {"msgfile", OPT_MSGFILE, '>', 806 "File to send output of -msg or -trace, instead of stdout"}, 807 {"state", OPT_STATE, '-', "Print the SSL states"}, 808 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"}, 809 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, 810 {"no-CAfile", OPT_NOCAFILE, '-', 811 "Do not load the default certificates file"}, 812 {"no-CApath", OPT_NOCAPATH, '-', 813 "Do not load certificates from the default certificates directory"}, 814 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"}, 815 {"quiet", OPT_QUIET, '-', "No server output"}, 816 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-', 817 "Disable caching and tickets if ephemeral (EC)DH is used"}, 818 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"}, 819 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"}, 820 {"servername", OPT_SERVERNAME, 's', 821 "Servername for HostName TLS extension"}, 822 {"servername_fatal", OPT_SERVERNAME_FATAL, '-', 823 "mismatch send fatal alert (default warning alert)"}, 824 {"cert2", OPT_CERT2, '<', 825 "Certificate file to use for servername; default is" TEST_CERT2}, 826 {"key2", OPT_KEY2, '<', 827 "-Private Key file to use for servername if not in -cert2"}, 828 {"tlsextdebug", OPT_TLSEXTDEBUG, '-', 829 "Hex dump of all TLS extensions received"}, 830 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"}, 831 {"id_prefix", OPT_ID_PREFIX, 's', 832 "Generate SSL/TLS session IDs prefixed by arg"}, 833 OPT_R_OPTIONS, 834 {"keymatexport", OPT_KEYMATEXPORT, 's', 835 "Export keying material using label"}, 836 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', 837 "Export len bytes of keying material (default 20)"}, 838 {"CRL", OPT_CRL, '<', "CRL file to use"}, 839 {"crl_download", OPT_CRL_DOWNLOAD, '-', 840 "Download CRL from distribution points"}, 841 {"cert_chain", OPT_CERT_CHAIN, '<', 842 "certificate chain file in PEM format"}, 843 {"dcert_chain", OPT_DCERT_CHAIN, '<', 844 "second certificate chain file in PEM format"}, 845 {"chainCApath", OPT_CHAINCAPATH, '/', 846 "use dir as certificate store path to build CA certificate chain"}, 847 {"verifyCApath", OPT_VERIFYCAPATH, '/', 848 "use dir as certificate store path to verify CA certificate"}, 849 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"}, 850 {"ext_cache", OPT_EXT_CACHE, '-', 851 "Disable internal cache, setup and use external cache"}, 852 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"}, 853 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-', 854 "Close connection on verification error"}, 855 {"verify_quiet", OPT_VERIFY_QUIET, '-', 856 "No verify output except verify errors"}, 857 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"}, 858 {"chainCAfile", OPT_CHAINCAFILE, '<', 859 "CA file for certificate chain (PEM format)"}, 860 {"verifyCAfile", OPT_VERIFYCAFILE, '<', 861 "CA file for certificate verification (PEM format)"}, 862 {"ign_eof", OPT_IGN_EOF, '-', "ignore input eof (default when -quiet)"}, 863 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input eof"}, 864 #ifndef OPENSSL_NO_OCSP 865 {"status", OPT_STATUS, '-', "Request certificate status from server"}, 866 {"status_verbose", OPT_STATUS_VERBOSE, '-', 867 "Print more output in certificate status callback"}, 868 {"status_timeout", OPT_STATUS_TIMEOUT, 'n', 869 "Status request responder timeout"}, 870 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"}, 871 {"status_file", OPT_STATUS_FILE, '<', 872 "File containing DER encoded OCSP Response"}, 873 #endif 874 #ifndef OPENSSL_NO_SSL_TRACE 875 {"trace", OPT_TRACE, '-', "trace protocol messages"}, 876 #endif 877 {"security_debug", OPT_SECURITY_DEBUG, '-', 878 "Print output from SSL/TLS security framework"}, 879 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-', 880 "Print more output from SSL/TLS security framework"}, 881 {"brief", OPT_BRIEF, '-', 882 "Restrict output to brief summary of connection parameters"}, 883 {"rev", OPT_REV, '-', 884 "act as a simple test server which just sends back with the received text reversed"}, 885 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"}, 886 {"ssl_config", OPT_SSL_CONFIG, 's', 887 "Configure SSL_CTX using the configuration 'val'"}, 888 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "}, 889 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p', 890 "Size used to split data for encrypt pipelines"}, 891 {"max_pipelines", OPT_MAX_PIPELINES, 'p', 892 "Maximum number of encrypt/decrypt pipelines to be used"}, 893 {"read_buf", OPT_READ_BUF, 'p', 894 "Default read buffer size to be used for connections"}, 895 OPT_S_OPTIONS, 896 OPT_V_OPTIONS, 897 OPT_X_OPTIONS, 898 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, 899 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"}, 900 #ifndef OPENSSL_NO_PSK 901 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"}, 902 #endif 903 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, 904 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"}, 905 #ifndef OPENSSL_NO_SRP 906 {"srpvfile", OPT_SRPVFILE, '<', "The verifier file for SRP"}, 907 {"srpuserseed", OPT_SRPUSERSEED, 's', 908 "A seed string for a default user salt"}, 909 #endif 910 #ifndef OPENSSL_NO_SSL3 911 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"}, 912 #endif 913 #ifndef OPENSSL_NO_TLS1 914 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"}, 915 #endif 916 #ifndef OPENSSL_NO_TLS1_1 917 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"}, 918 #endif 919 #ifndef OPENSSL_NO_TLS1_2 920 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"}, 921 #endif 922 #ifndef OPENSSL_NO_TLS1_3 923 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"}, 924 #endif 925 #ifndef OPENSSL_NO_DTLS 926 {"dtls", OPT_DTLS, '-', "Use any DTLS version"}, 927 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"}, 928 {"mtu", OPT_MTU, 'p', "Set link layer MTU"}, 929 {"listen", OPT_LISTEN, '-', 930 "Listen for a DTLS ClientHello with a cookie and then connect"}, 931 #endif 932 {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"}, 933 #ifndef OPENSSL_NO_DTLS1 934 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"}, 935 #endif 936 #ifndef OPENSSL_NO_DTLS1_2 937 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"}, 938 #endif 939 #ifndef OPENSSL_NO_SCTP 940 {"sctp", OPT_SCTP, '-', "Use SCTP"}, 941 #endif 942 #ifndef OPENSSL_NO_DH 943 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"}, 944 #endif 945 #ifndef OPENSSL_NO_NEXTPROTONEG 946 {"nextprotoneg", OPT_NEXTPROTONEG, 's', 947 "Set the advertised protocols for the NPN extension (comma-separated list)"}, 948 #endif 949 #ifndef OPENSSL_NO_SRTP 950 {"use_srtp", OPT_SRTP_PROFILES, 's', 951 "Offer SRTP key management with a colon-separated profile list"}, 952 #endif 953 {"alpn", OPT_ALPN, 's', 954 "Set the advertised protocols for the ALPN extension (comma-separated list)"}, 955 #ifndef OPENSSL_NO_ENGINE 956 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 957 #endif 958 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"}, 959 {"max_early_data", OPT_MAX_EARLY, 'n', 960 "The maximum number of bytes of early data as advertised in tickets"}, 961 {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n', 962 "The maximum number of bytes of early data (hard limit)"}, 963 {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"}, 964 {"num_tickets", OPT_S_NUM_TICKETS, 'n', 965 "The number of TLSv1.3 session tickets that a server will automatically issue" }, 966 {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"}, 967 {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"}, 968 {NULL, OPT_EOF, 0, NULL} 969 }; 970 971 #define IS_PROT_FLAG(o) \ 972 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \ 973 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2) 974 975 int s_server_main(int argc, char *argv[]) 976 { 977 ENGINE *engine = NULL; 978 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 979 SSL_CONF_CTX *cctx = NULL; 980 const SSL_METHOD *meth = TLS_server_method(); 981 SSL_EXCERT *exc = NULL; 982 STACK_OF(OPENSSL_STRING) *ssl_args = NULL; 983 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL; 984 STACK_OF(X509_CRL) *crls = NULL; 985 X509 *s_cert = NULL, *s_dcert = NULL; 986 X509_VERIFY_PARAM *vpm = NULL; 987 const char *CApath = NULL, *CAfile = NULL, *chCApath = NULL, *chCAfile = NULL; 988 char *dpassarg = NULL, *dpass = NULL; 989 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL; 990 char *crl_file = NULL, *prog; 991 #ifdef AF_UNIX 992 int unlink_unix_path = 0; 993 #endif 994 do_server_cb server_cb; 995 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0; 996 #ifndef OPENSSL_NO_DH 997 char *dhfile = NULL; 998 int no_dhe = 0; 999 #endif 1000 int nocert = 0, ret = 1; 1001 int noCApath = 0, noCAfile = 0; 1002 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM; 1003 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM; 1004 int rev = 0, naccept = -1, sdebug = 0; 1005 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0; 1006 int state = 0, crl_format = FORMAT_PEM, crl_download = 0; 1007 char *host = NULL; 1008 char *port = BUF_strdup(PORT); 1009 unsigned char *context = NULL; 1010 OPTION_CHOICE o; 1011 EVP_PKEY *s_key2 = NULL; 1012 X509 *s_cert2 = NULL; 1013 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING }; 1014 const char *ssl_config = NULL; 1015 int read_buf_len = 0; 1016 #ifndef OPENSSL_NO_NEXTPROTONEG 1017 const char *next_proto_neg_in = NULL; 1018 tlsextnextprotoctx next_proto = { NULL, 0 }; 1019 #endif 1020 const char *alpn_in = NULL; 1021 tlsextalpnctx alpn_ctx = { NULL, 0 }; 1022 #ifndef OPENSSL_NO_PSK 1023 /* by default do not send a PSK identity hint */ 1024 char *psk_identity_hint = NULL; 1025 #endif 1026 char *p; 1027 #ifndef OPENSSL_NO_SRP 1028 char *srpuserseed = NULL; 1029 char *srp_verifier_file = NULL; 1030 #endif 1031 #ifndef OPENSSL_NO_SRTP 1032 char *srtp_profiles = NULL; 1033 #endif 1034 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0; 1035 int s_server_verify = SSL_VERIFY_NONE; 1036 int s_server_session_id_context = 1; /* anything will do */ 1037 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL; 1038 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL; 1039 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL; 1040 #ifndef OPENSSL_NO_OCSP 1041 int s_tlsextstatus = 0; 1042 #endif 1043 int no_resume_ephemeral = 0; 1044 unsigned int max_send_fragment = 0; 1045 unsigned int split_send_fragment = 0, max_pipelines = 0; 1046 const char *s_serverinfo_file = NULL; 1047 const char *keylog_file = NULL; 1048 int max_early_data = -1, recv_max_early_data = -1; 1049 char *psksessf = NULL; 1050 1051 /* Init of few remaining global variables */ 1052 local_argc = argc; 1053 local_argv = argv; 1054 1055 ctx = ctx2 = NULL; 1056 s_nbio = s_nbio_test = 0; 1057 www = 0; 1058 bio_s_out = NULL; 1059 s_debug = 0; 1060 s_msg = 0; 1061 s_quiet = 0; 1062 s_brief = 0; 1063 async = 0; 1064 1065 cctx = SSL_CONF_CTX_new(); 1066 vpm = X509_VERIFY_PARAM_new(); 1067 if (cctx == NULL || vpm == NULL) 1068 goto end; 1069 SSL_CONF_CTX_set_flags(cctx, 1070 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE); 1071 1072 prog = opt_init(argc, argv, s_server_options); 1073 while ((o = opt_next()) != OPT_EOF) { 1074 if (IS_PROT_FLAG(o) && ++prot_opt > 1) { 1075 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); 1076 goto end; 1077 } 1078 if (IS_NO_PROT_FLAG(o)) 1079 no_prot_opt++; 1080 if (prot_opt == 1 && no_prot_opt) { 1081 BIO_printf(bio_err, 1082 "Cannot supply both a protocol flag and '-no_<prot>'\n"); 1083 goto end; 1084 } 1085 switch (o) { 1086 case OPT_EOF: 1087 case OPT_ERR: 1088 opthelp: 1089 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 1090 goto end; 1091 case OPT_HELP: 1092 opt_help(s_server_options); 1093 ret = 0; 1094 goto end; 1095 1096 case OPT_4: 1097 #ifdef AF_UNIX 1098 if (socket_family == AF_UNIX) { 1099 OPENSSL_free(host); host = NULL; 1100 OPENSSL_free(port); port = NULL; 1101 } 1102 #endif 1103 socket_family = AF_INET; 1104 break; 1105 case OPT_6: 1106 if (1) { 1107 #ifdef AF_INET6 1108 #ifdef AF_UNIX 1109 if (socket_family == AF_UNIX) { 1110 OPENSSL_free(host); host = NULL; 1111 OPENSSL_free(port); port = NULL; 1112 } 1113 #endif 1114 socket_family = AF_INET6; 1115 } else { 1116 #endif 1117 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog); 1118 goto end; 1119 } 1120 break; 1121 case OPT_PORT: 1122 #ifdef AF_UNIX 1123 if (socket_family == AF_UNIX) { 1124 socket_family = AF_UNSPEC; 1125 } 1126 #endif 1127 OPENSSL_free(port); port = NULL; 1128 OPENSSL_free(host); host = NULL; 1129 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) { 1130 BIO_printf(bio_err, 1131 "%s: -port argument malformed or ambiguous\n", 1132 port); 1133 goto end; 1134 } 1135 break; 1136 case OPT_ACCEPT: 1137 #ifdef AF_UNIX 1138 if (socket_family == AF_UNIX) { 1139 socket_family = AF_UNSPEC; 1140 } 1141 #endif 1142 OPENSSL_free(port); port = NULL; 1143 OPENSSL_free(host); host = NULL; 1144 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) { 1145 BIO_printf(bio_err, 1146 "%s: -accept argument malformed or ambiguous\n", 1147 port); 1148 goto end; 1149 } 1150 break; 1151 #ifdef AF_UNIX 1152 case OPT_UNIX: 1153 socket_family = AF_UNIX; 1154 OPENSSL_free(host); host = BUF_strdup(opt_arg()); 1155 OPENSSL_free(port); port = NULL; 1156 break; 1157 case OPT_UNLINK: 1158 unlink_unix_path = 1; 1159 break; 1160 #endif 1161 case OPT_NACCEPT: 1162 naccept = atol(opt_arg()); 1163 break; 1164 case OPT_VERIFY: 1165 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; 1166 verify_args.depth = atoi(opt_arg()); 1167 if (!s_quiet) 1168 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth); 1169 break; 1170 case OPT_UPPER_V_VERIFY: 1171 s_server_verify = 1172 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | 1173 SSL_VERIFY_CLIENT_ONCE; 1174 verify_args.depth = atoi(opt_arg()); 1175 if (!s_quiet) 1176 BIO_printf(bio_err, 1177 "verify depth is %d, must return a certificate\n", 1178 verify_args.depth); 1179 break; 1180 case OPT_CONTEXT: 1181 context = (unsigned char *)opt_arg(); 1182 break; 1183 case OPT_CERT: 1184 s_cert_file = opt_arg(); 1185 break; 1186 case OPT_NAMEOPT: 1187 if (!set_nameopt(opt_arg())) 1188 goto end; 1189 break; 1190 case OPT_CRL: 1191 crl_file = opt_arg(); 1192 break; 1193 case OPT_CRL_DOWNLOAD: 1194 crl_download = 1; 1195 break; 1196 case OPT_SERVERINFO: 1197 s_serverinfo_file = opt_arg(); 1198 break; 1199 case OPT_CERTFORM: 1200 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_cert_format)) 1201 goto opthelp; 1202 break; 1203 case OPT_KEY: 1204 s_key_file = opt_arg(); 1205 break; 1206 case OPT_KEYFORM: 1207 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format)) 1208 goto opthelp; 1209 break; 1210 case OPT_PASS: 1211 passarg = opt_arg(); 1212 break; 1213 case OPT_CERT_CHAIN: 1214 s_chain_file = opt_arg(); 1215 break; 1216 case OPT_DHPARAM: 1217 #ifndef OPENSSL_NO_DH 1218 dhfile = opt_arg(); 1219 #endif 1220 break; 1221 case OPT_DCERTFORM: 1222 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dcert_format)) 1223 goto opthelp; 1224 break; 1225 case OPT_DCERT: 1226 s_dcert_file = opt_arg(); 1227 break; 1228 case OPT_DKEYFORM: 1229 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dkey_format)) 1230 goto opthelp; 1231 break; 1232 case OPT_DPASS: 1233 dpassarg = opt_arg(); 1234 break; 1235 case OPT_DKEY: 1236 s_dkey_file = opt_arg(); 1237 break; 1238 case OPT_DCERT_CHAIN: 1239 s_dchain_file = opt_arg(); 1240 break; 1241 case OPT_NOCERT: 1242 nocert = 1; 1243 break; 1244 case OPT_CAPATH: 1245 CApath = opt_arg(); 1246 break; 1247 case OPT_NOCAPATH: 1248 noCApath = 1; 1249 break; 1250 case OPT_CHAINCAPATH: 1251 chCApath = opt_arg(); 1252 break; 1253 case OPT_VERIFYCAPATH: 1254 vfyCApath = opt_arg(); 1255 break; 1256 case OPT_NO_CACHE: 1257 no_cache = 1; 1258 break; 1259 case OPT_EXT_CACHE: 1260 ext_cache = 1; 1261 break; 1262 case OPT_CRLFORM: 1263 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) 1264 goto opthelp; 1265 break; 1266 case OPT_S_CASES: 1267 case OPT_S_NUM_TICKETS: 1268 case OPT_ANTI_REPLAY: 1269 case OPT_NO_ANTI_REPLAY: 1270 if (ssl_args == NULL) 1271 ssl_args = sk_OPENSSL_STRING_new_null(); 1272 if (ssl_args == NULL 1273 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag()) 1274 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) { 1275 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1276 goto end; 1277 } 1278 break; 1279 case OPT_V_CASES: 1280 if (!opt_verify(o, vpm)) 1281 goto end; 1282 vpmtouched++; 1283 break; 1284 case OPT_X_CASES: 1285 if (!args_excert(o, &exc)) 1286 goto end; 1287 break; 1288 case OPT_VERIFY_RET_ERROR: 1289 verify_args.return_error = 1; 1290 break; 1291 case OPT_VERIFY_QUIET: 1292 verify_args.quiet = 1; 1293 break; 1294 case OPT_BUILD_CHAIN: 1295 build_chain = 1; 1296 break; 1297 case OPT_CAFILE: 1298 CAfile = opt_arg(); 1299 break; 1300 case OPT_NOCAFILE: 1301 noCAfile = 1; 1302 break; 1303 case OPT_CHAINCAFILE: 1304 chCAfile = opt_arg(); 1305 break; 1306 case OPT_VERIFYCAFILE: 1307 vfyCAfile = opt_arg(); 1308 break; 1309 case OPT_NBIO: 1310 s_nbio = 1; 1311 break; 1312 case OPT_NBIO_TEST: 1313 s_nbio = s_nbio_test = 1; 1314 break; 1315 case OPT_IGN_EOF: 1316 s_ign_eof = 1; 1317 break; 1318 case OPT_NO_IGN_EOF: 1319 s_ign_eof = 0; 1320 break; 1321 case OPT_DEBUG: 1322 s_debug = 1; 1323 break; 1324 case OPT_TLSEXTDEBUG: 1325 s_tlsextdebug = 1; 1326 break; 1327 case OPT_STATUS: 1328 #ifndef OPENSSL_NO_OCSP 1329 s_tlsextstatus = 1; 1330 #endif 1331 break; 1332 case OPT_STATUS_VERBOSE: 1333 #ifndef OPENSSL_NO_OCSP 1334 s_tlsextstatus = tlscstatp.verbose = 1; 1335 #endif 1336 break; 1337 case OPT_STATUS_TIMEOUT: 1338 #ifndef OPENSSL_NO_OCSP 1339 s_tlsextstatus = 1; 1340 tlscstatp.timeout = atoi(opt_arg()); 1341 #endif 1342 break; 1343 case OPT_STATUS_URL: 1344 #ifndef OPENSSL_NO_OCSP 1345 s_tlsextstatus = 1; 1346 if (!OCSP_parse_url(opt_arg(), 1347 &tlscstatp.host, 1348 &tlscstatp.port, 1349 &tlscstatp.path, &tlscstatp.use_ssl)) { 1350 BIO_printf(bio_err, "Error parsing URL\n"); 1351 goto end; 1352 } 1353 #endif 1354 break; 1355 case OPT_STATUS_FILE: 1356 #ifndef OPENSSL_NO_OCSP 1357 s_tlsextstatus = 1; 1358 tlscstatp.respin = opt_arg(); 1359 #endif 1360 break; 1361 case OPT_MSG: 1362 s_msg = 1; 1363 break; 1364 case OPT_MSGFILE: 1365 bio_s_msg = BIO_new_file(opt_arg(), "w"); 1366 break; 1367 case OPT_TRACE: 1368 #ifndef OPENSSL_NO_SSL_TRACE 1369 s_msg = 2; 1370 #endif 1371 break; 1372 case OPT_SECURITY_DEBUG: 1373 sdebug = 1; 1374 break; 1375 case OPT_SECURITY_DEBUG_VERBOSE: 1376 sdebug = 2; 1377 break; 1378 case OPT_STATE: 1379 state = 1; 1380 break; 1381 case OPT_CRLF: 1382 s_crlf = 1; 1383 break; 1384 case OPT_QUIET: 1385 s_quiet = 1; 1386 break; 1387 case OPT_BRIEF: 1388 s_quiet = s_brief = verify_args.quiet = 1; 1389 break; 1390 case OPT_NO_DHE: 1391 #ifndef OPENSSL_NO_DH 1392 no_dhe = 1; 1393 #endif 1394 break; 1395 case OPT_NO_RESUME_EPHEMERAL: 1396 no_resume_ephemeral = 1; 1397 break; 1398 case OPT_PSK_IDENTITY: 1399 psk_identity = opt_arg(); 1400 break; 1401 case OPT_PSK_HINT: 1402 #ifndef OPENSSL_NO_PSK 1403 psk_identity_hint = opt_arg(); 1404 #endif 1405 break; 1406 case OPT_PSK: 1407 for (p = psk_key = opt_arg(); *p; p++) { 1408 if (isxdigit(_UC(*p))) 1409 continue; 1410 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv); 1411 goto end; 1412 } 1413 break; 1414 case OPT_PSK_SESS: 1415 psksessf = opt_arg(); 1416 break; 1417 case OPT_SRPVFILE: 1418 #ifndef OPENSSL_NO_SRP 1419 srp_verifier_file = opt_arg(); 1420 if (min_version < TLS1_VERSION) 1421 min_version = TLS1_VERSION; 1422 #endif 1423 break; 1424 case OPT_SRPUSERSEED: 1425 #ifndef OPENSSL_NO_SRP 1426 srpuserseed = opt_arg(); 1427 if (min_version < TLS1_VERSION) 1428 min_version = TLS1_VERSION; 1429 #endif 1430 break; 1431 case OPT_REV: 1432 rev = 1; 1433 break; 1434 case OPT_WWW: 1435 www = 1; 1436 break; 1437 case OPT_UPPER_WWW: 1438 www = 2; 1439 break; 1440 case OPT_HTTP: 1441 www = 3; 1442 break; 1443 case OPT_SSL_CONFIG: 1444 ssl_config = opt_arg(); 1445 break; 1446 case OPT_SSL3: 1447 min_version = SSL3_VERSION; 1448 max_version = SSL3_VERSION; 1449 break; 1450 case OPT_TLS1_3: 1451 min_version = TLS1_3_VERSION; 1452 max_version = TLS1_3_VERSION; 1453 break; 1454 case OPT_TLS1_2: 1455 min_version = TLS1_2_VERSION; 1456 max_version = TLS1_2_VERSION; 1457 break; 1458 case OPT_TLS1_1: 1459 min_version = TLS1_1_VERSION; 1460 max_version = TLS1_1_VERSION; 1461 break; 1462 case OPT_TLS1: 1463 min_version = TLS1_VERSION; 1464 max_version = TLS1_VERSION; 1465 break; 1466 case OPT_DTLS: 1467 #ifndef OPENSSL_NO_DTLS 1468 meth = DTLS_server_method(); 1469 socket_type = SOCK_DGRAM; 1470 #endif 1471 break; 1472 case OPT_DTLS1: 1473 #ifndef OPENSSL_NO_DTLS 1474 meth = DTLS_server_method(); 1475 min_version = DTLS1_VERSION; 1476 max_version = DTLS1_VERSION; 1477 socket_type = SOCK_DGRAM; 1478 #endif 1479 break; 1480 case OPT_DTLS1_2: 1481 #ifndef OPENSSL_NO_DTLS 1482 meth = DTLS_server_method(); 1483 min_version = DTLS1_2_VERSION; 1484 max_version = DTLS1_2_VERSION; 1485 socket_type = SOCK_DGRAM; 1486 #endif 1487 break; 1488 case OPT_SCTP: 1489 #ifndef OPENSSL_NO_SCTP 1490 protocol = IPPROTO_SCTP; 1491 #endif 1492 break; 1493 case OPT_TIMEOUT: 1494 #ifndef OPENSSL_NO_DTLS 1495 enable_timeouts = 1; 1496 #endif 1497 break; 1498 case OPT_MTU: 1499 #ifndef OPENSSL_NO_DTLS 1500 socket_mtu = atol(opt_arg()); 1501 #endif 1502 break; 1503 case OPT_LISTEN: 1504 #ifndef OPENSSL_NO_DTLS 1505 dtlslisten = 1; 1506 #endif 1507 break; 1508 case OPT_STATELESS: 1509 stateless = 1; 1510 break; 1511 case OPT_ID_PREFIX: 1512 session_id_prefix = opt_arg(); 1513 break; 1514 case OPT_ENGINE: 1515 engine = setup_engine(opt_arg(), 1); 1516 break; 1517 case OPT_R_CASES: 1518 if (!opt_rand(o)) 1519 goto end; 1520 break; 1521 case OPT_SERVERNAME: 1522 tlsextcbp.servername = opt_arg(); 1523 break; 1524 case OPT_SERVERNAME_FATAL: 1525 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; 1526 break; 1527 case OPT_CERT2: 1528 s_cert_file2 = opt_arg(); 1529 break; 1530 case OPT_KEY2: 1531 s_key_file2 = opt_arg(); 1532 break; 1533 case OPT_NEXTPROTONEG: 1534 # ifndef OPENSSL_NO_NEXTPROTONEG 1535 next_proto_neg_in = opt_arg(); 1536 #endif 1537 break; 1538 case OPT_ALPN: 1539 alpn_in = opt_arg(); 1540 break; 1541 case OPT_SRTP_PROFILES: 1542 #ifndef OPENSSL_NO_SRTP 1543 srtp_profiles = opt_arg(); 1544 #endif 1545 break; 1546 case OPT_KEYMATEXPORT: 1547 keymatexportlabel = opt_arg(); 1548 break; 1549 case OPT_KEYMATEXPORTLEN: 1550 keymatexportlen = atoi(opt_arg()); 1551 break; 1552 case OPT_ASYNC: 1553 async = 1; 1554 break; 1555 case OPT_MAX_SEND_FRAG: 1556 max_send_fragment = atoi(opt_arg()); 1557 break; 1558 case OPT_SPLIT_SEND_FRAG: 1559 split_send_fragment = atoi(opt_arg()); 1560 break; 1561 case OPT_MAX_PIPELINES: 1562 max_pipelines = atoi(opt_arg()); 1563 break; 1564 case OPT_READ_BUF: 1565 read_buf_len = atoi(opt_arg()); 1566 break; 1567 case OPT_KEYLOG_FILE: 1568 keylog_file = opt_arg(); 1569 break; 1570 case OPT_MAX_EARLY: 1571 max_early_data = atoi(opt_arg()); 1572 if (max_early_data < 0) { 1573 BIO_printf(bio_err, "Invalid value for max_early_data\n"); 1574 goto end; 1575 } 1576 break; 1577 case OPT_RECV_MAX_EARLY: 1578 recv_max_early_data = atoi(opt_arg()); 1579 if (recv_max_early_data < 0) { 1580 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n"); 1581 goto end; 1582 } 1583 break; 1584 case OPT_EARLY_DATA: 1585 early_data = 1; 1586 if (max_early_data == -1) 1587 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; 1588 break; 1589 } 1590 } 1591 argc = opt_num_rest(); 1592 argv = opt_rest(); 1593 1594 #ifndef OPENSSL_NO_NEXTPROTONEG 1595 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) { 1596 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n"); 1597 goto opthelp; 1598 } 1599 #endif 1600 #ifndef OPENSSL_NO_DTLS 1601 if (www && socket_type == SOCK_DGRAM) { 1602 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n"); 1603 goto end; 1604 } 1605 1606 if (dtlslisten && socket_type != SOCK_DGRAM) { 1607 BIO_printf(bio_err, "Can only use -listen with DTLS\n"); 1608 goto end; 1609 } 1610 #endif 1611 1612 if (stateless && socket_type != SOCK_STREAM) { 1613 BIO_printf(bio_err, "Can only use --stateless with TLS\n"); 1614 goto end; 1615 } 1616 1617 #ifdef AF_UNIX 1618 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) { 1619 BIO_printf(bio_err, 1620 "Can't use unix sockets and datagrams together\n"); 1621 goto end; 1622 } 1623 #endif 1624 if (early_data && (www > 0 || rev)) { 1625 BIO_printf(bio_err, 1626 "Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n"); 1627 goto end; 1628 } 1629 1630 #ifndef OPENSSL_NO_SCTP 1631 if (protocol == IPPROTO_SCTP) { 1632 if (socket_type != SOCK_DGRAM) { 1633 BIO_printf(bio_err, "Can't use -sctp without DTLS\n"); 1634 goto end; 1635 } 1636 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */ 1637 socket_type = SOCK_STREAM; 1638 } 1639 #endif 1640 1641 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) { 1642 BIO_printf(bio_err, "Error getting password\n"); 1643 goto end; 1644 } 1645 1646 if (s_key_file == NULL) 1647 s_key_file = s_cert_file; 1648 1649 if (s_key_file2 == NULL) 1650 s_key_file2 = s_cert_file2; 1651 1652 if (!load_excert(&exc)) 1653 goto end; 1654 1655 if (nocert == 0) { 1656 s_key = load_key(s_key_file, s_key_format, 0, pass, engine, 1657 "server certificate private key file"); 1658 if (s_key == NULL) { 1659 ERR_print_errors(bio_err); 1660 goto end; 1661 } 1662 1663 s_cert = load_cert(s_cert_file, s_cert_format, 1664 "server certificate file"); 1665 1666 if (s_cert == NULL) { 1667 ERR_print_errors(bio_err); 1668 goto end; 1669 } 1670 if (s_chain_file != NULL) { 1671 if (!load_certs(s_chain_file, &s_chain, FORMAT_PEM, NULL, 1672 "server certificate chain")) 1673 goto end; 1674 } 1675 1676 if (tlsextcbp.servername != NULL) { 1677 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine, 1678 "second server certificate private key file"); 1679 if (s_key2 == NULL) { 1680 ERR_print_errors(bio_err); 1681 goto end; 1682 } 1683 1684 s_cert2 = load_cert(s_cert_file2, s_cert_format, 1685 "second server certificate file"); 1686 1687 if (s_cert2 == NULL) { 1688 ERR_print_errors(bio_err); 1689 goto end; 1690 } 1691 } 1692 } 1693 #if !defined(OPENSSL_NO_NEXTPROTONEG) 1694 if (next_proto_neg_in) { 1695 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in); 1696 if (next_proto.data == NULL) 1697 goto end; 1698 } 1699 #endif 1700 alpn_ctx.data = NULL; 1701 if (alpn_in) { 1702 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in); 1703 if (alpn_ctx.data == NULL) 1704 goto end; 1705 } 1706 1707 if (crl_file != NULL) { 1708 X509_CRL *crl; 1709 crl = load_crl(crl_file, crl_format); 1710 if (crl == NULL) { 1711 BIO_puts(bio_err, "Error loading CRL\n"); 1712 ERR_print_errors(bio_err); 1713 goto end; 1714 } 1715 crls = sk_X509_CRL_new_null(); 1716 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { 1717 BIO_puts(bio_err, "Error adding CRL\n"); 1718 ERR_print_errors(bio_err); 1719 X509_CRL_free(crl); 1720 goto end; 1721 } 1722 } 1723 1724 if (s_dcert_file != NULL) { 1725 1726 if (s_dkey_file == NULL) 1727 s_dkey_file = s_dcert_file; 1728 1729 s_dkey = load_key(s_dkey_file, s_dkey_format, 1730 0, dpass, engine, "second certificate private key file"); 1731 if (s_dkey == NULL) { 1732 ERR_print_errors(bio_err); 1733 goto end; 1734 } 1735 1736 s_dcert = load_cert(s_dcert_file, s_dcert_format, 1737 "second server certificate file"); 1738 1739 if (s_dcert == NULL) { 1740 ERR_print_errors(bio_err); 1741 goto end; 1742 } 1743 if (s_dchain_file != NULL) { 1744 if (!load_certs(s_dchain_file, &s_dchain, FORMAT_PEM, NULL, 1745 "second server certificate chain")) 1746 goto end; 1747 } 1748 1749 } 1750 1751 if (bio_s_out == NULL) { 1752 if (s_quiet && !s_debug) { 1753 bio_s_out = BIO_new(BIO_s_null()); 1754 if (s_msg && bio_s_msg == NULL) 1755 bio_s_msg = dup_bio_out(FORMAT_TEXT); 1756 } else { 1757 if (bio_s_out == NULL) 1758 bio_s_out = dup_bio_out(FORMAT_TEXT); 1759 } 1760 } 1761 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_EC) 1762 if (nocert) 1763 #endif 1764 { 1765 s_cert_file = NULL; 1766 s_key_file = NULL; 1767 s_dcert_file = NULL; 1768 s_dkey_file = NULL; 1769 s_cert_file2 = NULL; 1770 s_key_file2 = NULL; 1771 } 1772 1773 ctx = SSL_CTX_new(meth); 1774 if (ctx == NULL) { 1775 ERR_print_errors(bio_err); 1776 goto end; 1777 } 1778 1779 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 1780 1781 if (sdebug) 1782 ssl_ctx_security_debug(ctx, sdebug); 1783 1784 if (!config_ctx(cctx, ssl_args, ctx)) 1785 goto end; 1786 1787 if (ssl_config) { 1788 if (SSL_CTX_config(ctx, ssl_config) == 0) { 1789 BIO_printf(bio_err, "Error using configuration \"%s\"\n", 1790 ssl_config); 1791 ERR_print_errors(bio_err); 1792 goto end; 1793 } 1794 } 1795 if (min_version != 0 1796 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0) 1797 goto end; 1798 if (max_version != 0 1799 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0) 1800 goto end; 1801 1802 if (session_id_prefix) { 1803 if (strlen(session_id_prefix) >= 32) 1804 BIO_printf(bio_err, 1805 "warning: id_prefix is too long, only one new session will be possible\n"); 1806 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 1807 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1808 ERR_print_errors(bio_err); 1809 goto end; 1810 } 1811 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1812 } 1813 SSL_CTX_set_quiet_shutdown(ctx, 1); 1814 if (exc != NULL) 1815 ssl_ctx_set_excert(ctx, exc); 1816 1817 if (state) 1818 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1819 if (no_cache) 1820 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 1821 else if (ext_cache) 1822 init_session_cache_ctx(ctx); 1823 else 1824 SSL_CTX_sess_set_cache_size(ctx, 128); 1825 1826 if (async) { 1827 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); 1828 } 1829 1830 if (max_send_fragment > 0 1831 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) { 1832 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n", 1833 prog, max_send_fragment); 1834 goto end; 1835 } 1836 1837 if (split_send_fragment > 0 1838 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) { 1839 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n", 1840 prog, split_send_fragment); 1841 goto end; 1842 } 1843 if (max_pipelines > 0 1844 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) { 1845 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n", 1846 prog, max_pipelines); 1847 goto end; 1848 } 1849 1850 if (read_buf_len > 0) { 1851 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); 1852 } 1853 #ifndef OPENSSL_NO_SRTP 1854 if (srtp_profiles != NULL) { 1855 /* Returns 0 on success! */ 1856 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { 1857 BIO_printf(bio_err, "Error setting SRTP profile\n"); 1858 ERR_print_errors(bio_err); 1859 goto end; 1860 } 1861 } 1862 #endif 1863 1864 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) { 1865 ERR_print_errors(bio_err); 1866 goto end; 1867 } 1868 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { 1869 BIO_printf(bio_err, "Error setting verify params\n"); 1870 ERR_print_errors(bio_err); 1871 goto end; 1872 } 1873 1874 ssl_ctx_add_crls(ctx, crls, 0); 1875 1876 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, 1877 crls, crl_download)) { 1878 BIO_printf(bio_err, "Error loading store locations\n"); 1879 ERR_print_errors(bio_err); 1880 goto end; 1881 } 1882 1883 if (s_cert2) { 1884 ctx2 = SSL_CTX_new(meth); 1885 if (ctx2 == NULL) { 1886 ERR_print_errors(bio_err); 1887 goto end; 1888 } 1889 } 1890 1891 if (ctx2 != NULL) { 1892 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 1893 1894 if (sdebug) 1895 ssl_ctx_security_debug(ctx, sdebug); 1896 1897 if (session_id_prefix) { 1898 if (strlen(session_id_prefix) >= 32) 1899 BIO_printf(bio_err, 1900 "warning: id_prefix is too long, only one new session will be possible\n"); 1901 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { 1902 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1903 ERR_print_errors(bio_err); 1904 goto end; 1905 } 1906 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1907 } 1908 SSL_CTX_set_quiet_shutdown(ctx2, 1); 1909 if (exc != NULL) 1910 ssl_ctx_set_excert(ctx2, exc); 1911 1912 if (state) 1913 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 1914 1915 if (no_cache) 1916 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 1917 else if (ext_cache) 1918 init_session_cache_ctx(ctx2); 1919 else 1920 SSL_CTX_sess_set_cache_size(ctx2, 128); 1921 1922 if (async) 1923 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC); 1924 1925 if (!ctx_set_verify_locations(ctx2, CAfile, CApath, noCAfile, 1926 noCApath)) { 1927 ERR_print_errors(bio_err); 1928 goto end; 1929 } 1930 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) { 1931 BIO_printf(bio_err, "Error setting verify params\n"); 1932 ERR_print_errors(bio_err); 1933 goto end; 1934 } 1935 1936 ssl_ctx_add_crls(ctx2, crls, 0); 1937 if (!config_ctx(cctx, ssl_args, ctx2)) 1938 goto end; 1939 } 1940 #ifndef OPENSSL_NO_NEXTPROTONEG 1941 if (next_proto.data) 1942 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, 1943 &next_proto); 1944 #endif 1945 if (alpn_ctx.data) 1946 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 1947 1948 #ifndef OPENSSL_NO_DH 1949 if (!no_dhe) { 1950 DH *dh = NULL; 1951 1952 if (dhfile != NULL) 1953 dh = load_dh_param(dhfile); 1954 else if (s_cert_file != NULL) 1955 dh = load_dh_param(s_cert_file); 1956 1957 if (dh != NULL) { 1958 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1959 } else { 1960 BIO_printf(bio_s_out, "Using default temp DH parameters\n"); 1961 } 1962 (void)BIO_flush(bio_s_out); 1963 1964 if (dh == NULL) { 1965 SSL_CTX_set_dh_auto(ctx, 1); 1966 } else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { 1967 BIO_puts(bio_err, "Error setting temp DH parameters\n"); 1968 ERR_print_errors(bio_err); 1969 DH_free(dh); 1970 goto end; 1971 } 1972 1973 if (ctx2 != NULL) { 1974 if (!dhfile) { 1975 DH *dh2 = load_dh_param(s_cert_file2); 1976 if (dh2 != NULL) { 1977 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1978 (void)BIO_flush(bio_s_out); 1979 1980 DH_free(dh); 1981 dh = dh2; 1982 } 1983 } 1984 if (dh == NULL) { 1985 SSL_CTX_set_dh_auto(ctx2, 1); 1986 } else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { 1987 BIO_puts(bio_err, "Error setting temp DH parameters\n"); 1988 ERR_print_errors(bio_err); 1989 DH_free(dh); 1990 goto end; 1991 } 1992 } 1993 DH_free(dh); 1994 } 1995 #endif 1996 1997 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain)) 1998 goto end; 1999 2000 if (s_serverinfo_file != NULL 2001 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) { 2002 ERR_print_errors(bio_err); 2003 goto end; 2004 } 2005 2006 if (ctx2 != NULL 2007 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain)) 2008 goto end; 2009 2010 if (s_dcert != NULL) { 2011 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain)) 2012 goto end; 2013 } 2014 2015 if (no_resume_ephemeral) { 2016 SSL_CTX_set_not_resumable_session_callback(ctx, 2017 not_resumable_sess_cb); 2018 2019 if (ctx2 != NULL) 2020 SSL_CTX_set_not_resumable_session_callback(ctx2, 2021 not_resumable_sess_cb); 2022 } 2023 #ifndef OPENSSL_NO_PSK 2024 if (psk_key != NULL) { 2025 if (s_debug) 2026 BIO_printf(bio_s_out, "PSK key given, setting server callback\n"); 2027 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb); 2028 } 2029 2030 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) { 2031 BIO_printf(bio_err, "error setting PSK identity hint to context\n"); 2032 ERR_print_errors(bio_err); 2033 goto end; 2034 } 2035 #endif 2036 if (psksessf != NULL) { 2037 BIO *stmp = BIO_new_file(psksessf, "r"); 2038 2039 if (stmp == NULL) { 2040 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf); 2041 ERR_print_errors(bio_err); 2042 goto end; 2043 } 2044 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 2045 BIO_free(stmp); 2046 if (psksess == NULL) { 2047 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf); 2048 ERR_print_errors(bio_err); 2049 goto end; 2050 } 2051 2052 } 2053 2054 if (psk_key != NULL || psksess != NULL) 2055 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb); 2056 2057 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); 2058 if (!SSL_CTX_set_session_id_context(ctx, 2059 (void *)&s_server_session_id_context, 2060 sizeof(s_server_session_id_context))) { 2061 BIO_printf(bio_err, "error setting session id context\n"); 2062 ERR_print_errors(bio_err); 2063 goto end; 2064 } 2065 2066 /* Set DTLS cookie generation and verification callbacks */ 2067 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 2068 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 2069 2070 /* Set TLS1.3 cookie generation and verification callbacks */ 2071 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback); 2072 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback); 2073 2074 if (ctx2 != NULL) { 2075 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); 2076 if (!SSL_CTX_set_session_id_context(ctx2, 2077 (void *)&s_server_session_id_context, 2078 sizeof(s_server_session_id_context))) { 2079 BIO_printf(bio_err, "error setting session id context\n"); 2080 ERR_print_errors(bio_err); 2081 goto end; 2082 } 2083 tlsextcbp.biodebug = bio_s_out; 2084 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 2085 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); 2086 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 2087 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 2088 } 2089 2090 #ifndef OPENSSL_NO_SRP 2091 if (srp_verifier_file != NULL) { 2092 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed); 2093 srp_callback_parm.user = NULL; 2094 srp_callback_parm.login = NULL; 2095 if ((ret = 2096 SRP_VBASE_init(srp_callback_parm.vb, 2097 srp_verifier_file)) != SRP_NO_ERROR) { 2098 BIO_printf(bio_err, 2099 "Cannot initialize SRP verifier file \"%s\":ret=%d\n", 2100 srp_verifier_file, ret); 2101 goto end; 2102 } 2103 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback); 2104 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm); 2105 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb); 2106 } else 2107 #endif 2108 if (CAfile != NULL) { 2109 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); 2110 2111 if (ctx2) 2112 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); 2113 } 2114 #ifndef OPENSSL_NO_OCSP 2115 if (s_tlsextstatus) { 2116 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 2117 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); 2118 if (ctx2) { 2119 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb); 2120 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp); 2121 } 2122 } 2123 #endif 2124 if (set_keylog_file(ctx, keylog_file)) 2125 goto end; 2126 2127 if (max_early_data >= 0) 2128 SSL_CTX_set_max_early_data(ctx, max_early_data); 2129 if (recv_max_early_data >= 0) 2130 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data); 2131 2132 if (rev) 2133 server_cb = rev_body; 2134 else if (www) 2135 server_cb = www_body; 2136 else 2137 server_cb = sv_body; 2138 #ifdef AF_UNIX 2139 if (socket_family == AF_UNIX 2140 && unlink_unix_path) 2141 unlink(host); 2142 #endif 2143 do_server(&accept_socket, host, port, socket_family, socket_type, protocol, 2144 server_cb, context, naccept, bio_s_out); 2145 print_stats(bio_s_out, ctx); 2146 ret = 0; 2147 end: 2148 SSL_CTX_free(ctx); 2149 SSL_SESSION_free(psksess); 2150 set_keylog_file(NULL, NULL); 2151 X509_free(s_cert); 2152 sk_X509_CRL_pop_free(crls, X509_CRL_free); 2153 X509_free(s_dcert); 2154 EVP_PKEY_free(s_key); 2155 EVP_PKEY_free(s_dkey); 2156 sk_X509_pop_free(s_chain, X509_free); 2157 sk_X509_pop_free(s_dchain, X509_free); 2158 OPENSSL_free(pass); 2159 OPENSSL_free(dpass); 2160 OPENSSL_free(host); 2161 OPENSSL_free(port); 2162 X509_VERIFY_PARAM_free(vpm); 2163 free_sessions(); 2164 OPENSSL_free(tlscstatp.host); 2165 OPENSSL_free(tlscstatp.port); 2166 OPENSSL_free(tlscstatp.path); 2167 SSL_CTX_free(ctx2); 2168 X509_free(s_cert2); 2169 EVP_PKEY_free(s_key2); 2170 #ifndef OPENSSL_NO_NEXTPROTONEG 2171 OPENSSL_free(next_proto.data); 2172 #endif 2173 OPENSSL_free(alpn_ctx.data); 2174 ssl_excert_free(exc); 2175 sk_OPENSSL_STRING_free(ssl_args); 2176 SSL_CONF_CTX_free(cctx); 2177 release_engine(engine); 2178 BIO_free(bio_s_out); 2179 bio_s_out = NULL; 2180 BIO_free(bio_s_msg); 2181 bio_s_msg = NULL; 2182 #ifdef CHARSET_EBCDIC 2183 BIO_meth_free(methods_ebcdic); 2184 #endif 2185 return ret; 2186 } 2187 2188 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx) 2189 { 2190 BIO_printf(bio, "%4ld items in the session cache\n", 2191 SSL_CTX_sess_number(ssl_ctx)); 2192 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 2193 SSL_CTX_sess_connect(ssl_ctx)); 2194 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 2195 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 2196 BIO_printf(bio, "%4ld client connects that finished\n", 2197 SSL_CTX_sess_connect_good(ssl_ctx)); 2198 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 2199 SSL_CTX_sess_accept(ssl_ctx)); 2200 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 2201 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 2202 BIO_printf(bio, "%4ld server accepts that finished\n", 2203 SSL_CTX_sess_accept_good(ssl_ctx)); 2204 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); 2205 BIO_printf(bio, "%4ld session cache misses\n", 2206 SSL_CTX_sess_misses(ssl_ctx)); 2207 BIO_printf(bio, "%4ld session cache timeouts\n", 2208 SSL_CTX_sess_timeouts(ssl_ctx)); 2209 BIO_printf(bio, "%4ld callback cache hits\n", 2210 SSL_CTX_sess_cb_hits(ssl_ctx)); 2211 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 2212 SSL_CTX_sess_cache_full(ssl_ctx), 2213 SSL_CTX_sess_get_cache_size(ssl_ctx)); 2214 } 2215 2216 static int sv_body(int s, int stype, int prot, unsigned char *context) 2217 { 2218 char *buf = NULL; 2219 fd_set readfds; 2220 int ret = 1, width; 2221 int k, i; 2222 unsigned long l; 2223 SSL *con = NULL; 2224 BIO *sbio; 2225 struct timeval timeout; 2226 #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)) 2227 struct timeval *timeoutp; 2228 #endif 2229 #ifndef OPENSSL_NO_DTLS 2230 # ifndef OPENSSL_NO_SCTP 2231 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP); 2232 # else 2233 int isdtls = (stype == SOCK_DGRAM); 2234 # endif 2235 #endif 2236 2237 buf = app_malloc(bufsize, "server buffer"); 2238 if (s_nbio) { 2239 if (!BIO_socket_nbio(s, 1)) 2240 ERR_print_errors(bio_err); 2241 else if (!s_quiet) 2242 BIO_printf(bio_err, "Turned on non blocking io\n"); 2243 } 2244 2245 con = SSL_new(ctx); 2246 if (con == NULL) { 2247 ret = -1; 2248 goto err; 2249 } 2250 2251 if (s_tlsextdebug) { 2252 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2253 SSL_set_tlsext_debug_arg(con, bio_s_out); 2254 } 2255 2256 if (context != NULL 2257 && !SSL_set_session_id_context(con, context, 2258 strlen((char *)context))) { 2259 BIO_printf(bio_err, "Error setting session id context\n"); 2260 ret = -1; 2261 goto err; 2262 } 2263 2264 if (!SSL_clear(con)) { 2265 BIO_printf(bio_err, "Error clearing SSL connection\n"); 2266 ret = -1; 2267 goto err; 2268 } 2269 #ifndef OPENSSL_NO_DTLS 2270 if (isdtls) { 2271 # ifndef OPENSSL_NO_SCTP 2272 if (prot == IPPROTO_SCTP) 2273 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE); 2274 else 2275 # endif 2276 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 2277 2278 if (enable_timeouts) { 2279 timeout.tv_sec = 0; 2280 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 2281 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 2282 2283 timeout.tv_sec = 0; 2284 timeout.tv_usec = DGRAM_SND_TIMEOUT; 2285 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 2286 } 2287 2288 if (socket_mtu) { 2289 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 2290 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 2291 DTLS_get_link_min_mtu(con)); 2292 ret = -1; 2293 BIO_free(sbio); 2294 goto err; 2295 } 2296 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 2297 if (!DTLS_set_link_mtu(con, socket_mtu)) { 2298 BIO_printf(bio_err, "Failed to set MTU\n"); 2299 ret = -1; 2300 BIO_free(sbio); 2301 goto err; 2302 } 2303 } else 2304 /* want to do MTU discovery */ 2305 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 2306 2307 # ifndef OPENSSL_NO_SCTP 2308 if (prot != IPPROTO_SCTP) 2309 # endif 2310 /* Turn on cookie exchange. Not necessary for SCTP */ 2311 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 2312 } else 2313 #endif 2314 sbio = BIO_new_socket(s, BIO_NOCLOSE); 2315 2316 if (sbio == NULL) { 2317 BIO_printf(bio_err, "Unable to create BIO\n"); 2318 ERR_print_errors(bio_err); 2319 goto err; 2320 } 2321 2322 if (s_nbio_test) { 2323 BIO *test; 2324 2325 test = BIO_new(BIO_f_nbio_test()); 2326 sbio = BIO_push(test, sbio); 2327 } 2328 2329 SSL_set_bio(con, sbio, sbio); 2330 SSL_set_accept_state(con); 2331 /* SSL_set_fd(con,s); */ 2332 2333 if (s_debug) { 2334 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 2335 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 2336 } 2337 if (s_msg) { 2338 #ifndef OPENSSL_NO_SSL_TRACE 2339 if (s_msg == 2) 2340 SSL_set_msg_callback(con, SSL_trace); 2341 else 2342 #endif 2343 SSL_set_msg_callback(con, msg_cb); 2344 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 2345 } 2346 2347 if (s_tlsextdebug) { 2348 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2349 SSL_set_tlsext_debug_arg(con, bio_s_out); 2350 } 2351 2352 if (early_data) { 2353 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR; 2354 size_t readbytes; 2355 2356 while (edret != SSL_READ_EARLY_DATA_FINISH) { 2357 for (;;) { 2358 edret = SSL_read_early_data(con, buf, bufsize, &readbytes); 2359 if (edret != SSL_READ_EARLY_DATA_ERROR) 2360 break; 2361 2362 switch (SSL_get_error(con, 0)) { 2363 case SSL_ERROR_WANT_WRITE: 2364 case SSL_ERROR_WANT_ASYNC: 2365 case SSL_ERROR_WANT_READ: 2366 /* Just keep trying - busy waiting */ 2367 continue; 2368 default: 2369 BIO_printf(bio_err, "Error reading early data\n"); 2370 ERR_print_errors(bio_err); 2371 goto err; 2372 } 2373 } 2374 if (readbytes > 0) { 2375 if (write_header) { 2376 BIO_printf(bio_s_out, "Early data received:\n"); 2377 write_header = 0; 2378 } 2379 raw_write_stdout(buf, (unsigned int)readbytes); 2380 (void)BIO_flush(bio_s_out); 2381 } 2382 } 2383 if (write_header) { 2384 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT) 2385 BIO_printf(bio_s_out, "No early data received\n"); 2386 else 2387 BIO_printf(bio_s_out, "Early data was rejected\n"); 2388 } else { 2389 BIO_printf(bio_s_out, "\nEnd of early data\n"); 2390 } 2391 if (SSL_is_init_finished(con)) 2392 print_connection_info(con); 2393 } 2394 2395 if (fileno_stdin() > s) 2396 width = fileno_stdin() + 1; 2397 else 2398 width = s + 1; 2399 for (;;) { 2400 int read_from_terminal; 2401 int read_from_sslcon; 2402 2403 read_from_terminal = 0; 2404 read_from_sslcon = SSL_has_pending(con) 2405 || (async && SSL_waiting_for_async(con)); 2406 2407 if (!read_from_sslcon) { 2408 FD_ZERO(&readfds); 2409 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 2410 openssl_fdset(fileno_stdin(), &readfds); 2411 #endif 2412 openssl_fdset(s, &readfds); 2413 /* 2414 * Note: under VMS with SOCKETSHR the second parameter is 2415 * currently of type (int *) whereas under other systems it is 2416 * (void *) if you don't have a cast it will choke the compiler: 2417 * if you do have a cast then you can either go for (int *) or 2418 * (void *). 2419 */ 2420 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2421 /* 2422 * Under DOS (non-djgpp) and Windows we can't select on stdin: 2423 * only on sockets. As a workaround we timeout the select every 2424 * second and check for any keypress. In a proper Windows 2425 * application we wouldn't do this because it is inefficient. 2426 */ 2427 timeout.tv_sec = 1; 2428 timeout.tv_usec = 0; 2429 i = select(width, (void *)&readfds, NULL, NULL, &timeout); 2430 if (has_stdin_waiting()) 2431 read_from_terminal = 1; 2432 if ((i < 0) || (!i && !read_from_terminal)) 2433 continue; 2434 #else 2435 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout)) 2436 timeoutp = &timeout; 2437 else 2438 timeoutp = NULL; 2439 2440 i = select(width, (void *)&readfds, NULL, NULL, timeoutp); 2441 2442 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0) 2443 BIO_printf(bio_err, "TIMEOUT occurred\n"); 2444 2445 if (i <= 0) 2446 continue; 2447 if (FD_ISSET(fileno_stdin(), &readfds)) 2448 read_from_terminal = 1; 2449 #endif 2450 if (FD_ISSET(s, &readfds)) 2451 read_from_sslcon = 1; 2452 } 2453 if (read_from_terminal) { 2454 if (s_crlf) { 2455 int j, lf_num; 2456 2457 i = raw_read_stdin(buf, bufsize / 2); 2458 lf_num = 0; 2459 /* both loops are skipped when i <= 0 */ 2460 for (j = 0; j < i; j++) 2461 if (buf[j] == '\n') 2462 lf_num++; 2463 for (j = i - 1; j >= 0; j--) { 2464 buf[j + lf_num] = buf[j]; 2465 if (buf[j] == '\n') { 2466 lf_num--; 2467 i++; 2468 buf[j + lf_num] = '\r'; 2469 } 2470 } 2471 assert(lf_num == 0); 2472 } else { 2473 i = raw_read_stdin(buf, bufsize); 2474 } 2475 2476 if (!s_quiet && !s_brief) { 2477 if ((i <= 0) || (buf[0] == 'Q')) { 2478 BIO_printf(bio_s_out, "DONE\n"); 2479 (void)BIO_flush(bio_s_out); 2480 BIO_closesocket(s); 2481 close_accept_socket(); 2482 ret = -11; 2483 goto err; 2484 } 2485 if ((i <= 0) || (buf[0] == 'q')) { 2486 BIO_printf(bio_s_out, "DONE\n"); 2487 (void)BIO_flush(bio_s_out); 2488 if (SSL_version(con) != DTLS1_VERSION) 2489 BIO_closesocket(s); 2490 /* 2491 * close_accept_socket(); ret= -11; 2492 */ 2493 goto err; 2494 } 2495 #ifndef OPENSSL_NO_HEARTBEATS 2496 if ((buf[0] == 'B') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2497 BIO_printf(bio_err, "HEARTBEATING\n"); 2498 SSL_heartbeat(con); 2499 i = 0; 2500 continue; 2501 } 2502 #endif 2503 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2504 SSL_renegotiate(con); 2505 i = SSL_do_handshake(con); 2506 printf("SSL_do_handshake -> %d\n", i); 2507 i = 0; /* 13; */ 2508 continue; 2509 } 2510 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2511 SSL_set_verify(con, 2512 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, 2513 NULL); 2514 SSL_renegotiate(con); 2515 i = SSL_do_handshake(con); 2516 printf("SSL_do_handshake -> %d\n", i); 2517 i = 0; /* 13; */ 2518 continue; 2519 } 2520 if ((buf[0] == 'K' || buf[0] == 'k') 2521 && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2522 SSL_key_update(con, buf[0] == 'K' ? 2523 SSL_KEY_UPDATE_REQUESTED 2524 : SSL_KEY_UPDATE_NOT_REQUESTED); 2525 i = SSL_do_handshake(con); 2526 printf("SSL_do_handshake -> %d\n", i); 2527 i = 0; 2528 continue; 2529 } 2530 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2531 SSL_set_verify(con, SSL_VERIFY_PEER, NULL); 2532 i = SSL_verify_client_post_handshake(con); 2533 if (i == 0) { 2534 printf("Failed to initiate request\n"); 2535 ERR_print_errors(bio_err); 2536 } else { 2537 i = SSL_do_handshake(con); 2538 printf("SSL_do_handshake -> %d\n", i); 2539 i = 0; 2540 } 2541 continue; 2542 } 2543 if (buf[0] == 'P') { 2544 static const char *str = "Lets print some clear text\n"; 2545 BIO_write(SSL_get_wbio(con), str, strlen(str)); 2546 } 2547 if (buf[0] == 'S') { 2548 print_stats(bio_s_out, SSL_get_SSL_CTX(con)); 2549 } 2550 } 2551 #ifdef CHARSET_EBCDIC 2552 ebcdic2ascii(buf, buf, i); 2553 #endif 2554 l = k = 0; 2555 for (;;) { 2556 /* should do a select for the write */ 2557 #ifdef RENEG 2558 static count = 0; 2559 if (++count == 100) { 2560 count = 0; 2561 SSL_renegotiate(con); 2562 } 2563 #endif 2564 k = SSL_write(con, &(buf[l]), (unsigned int)i); 2565 #ifndef OPENSSL_NO_SRP 2566 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) { 2567 BIO_printf(bio_s_out, "LOOKUP renego during write\n"); 2568 SRP_user_pwd_free(srp_callback_parm.user); 2569 srp_callback_parm.user = 2570 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 2571 srp_callback_parm.login); 2572 if (srp_callback_parm.user) 2573 BIO_printf(bio_s_out, "LOOKUP done %s\n", 2574 srp_callback_parm.user->info); 2575 else 2576 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 2577 k = SSL_write(con, &(buf[l]), (unsigned int)i); 2578 } 2579 #endif 2580 switch (SSL_get_error(con, k)) { 2581 case SSL_ERROR_NONE: 2582 break; 2583 case SSL_ERROR_WANT_ASYNC: 2584 BIO_printf(bio_s_out, "Write BLOCK (Async)\n"); 2585 (void)BIO_flush(bio_s_out); 2586 wait_for_async(con); 2587 break; 2588 case SSL_ERROR_WANT_WRITE: 2589 case SSL_ERROR_WANT_READ: 2590 case SSL_ERROR_WANT_X509_LOOKUP: 2591 BIO_printf(bio_s_out, "Write BLOCK\n"); 2592 (void)BIO_flush(bio_s_out); 2593 break; 2594 case SSL_ERROR_WANT_ASYNC_JOB: 2595 /* 2596 * This shouldn't ever happen in s_server. Treat as an error 2597 */ 2598 case SSL_ERROR_SYSCALL: 2599 case SSL_ERROR_SSL: 2600 BIO_printf(bio_s_out, "ERROR\n"); 2601 (void)BIO_flush(bio_s_out); 2602 ERR_print_errors(bio_err); 2603 ret = 1; 2604 goto err; 2605 /* break; */ 2606 case SSL_ERROR_ZERO_RETURN: 2607 BIO_printf(bio_s_out, "DONE\n"); 2608 (void)BIO_flush(bio_s_out); 2609 ret = 1; 2610 goto err; 2611 } 2612 if (k > 0) { 2613 l += k; 2614 i -= k; 2615 } 2616 if (i <= 0) 2617 break; 2618 } 2619 } 2620 if (read_from_sslcon) { 2621 /* 2622 * init_ssl_connection handles all async events itself so if we're 2623 * waiting for async then we shouldn't go back into 2624 * init_ssl_connection 2625 */ 2626 if ((!async || !SSL_waiting_for_async(con)) 2627 && !SSL_is_init_finished(con)) { 2628 i = init_ssl_connection(con); 2629 2630 if (i < 0) { 2631 ret = 0; 2632 goto err; 2633 } else if (i == 0) { 2634 ret = 1; 2635 goto err; 2636 } 2637 } else { 2638 again: 2639 i = SSL_read(con, (char *)buf, bufsize); 2640 #ifndef OPENSSL_NO_SRP 2641 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { 2642 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 2643 SRP_user_pwd_free(srp_callback_parm.user); 2644 srp_callback_parm.user = 2645 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 2646 srp_callback_parm.login); 2647 if (srp_callback_parm.user) 2648 BIO_printf(bio_s_out, "LOOKUP done %s\n", 2649 srp_callback_parm.user->info); 2650 else 2651 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 2652 i = SSL_read(con, (char *)buf, bufsize); 2653 } 2654 #endif 2655 switch (SSL_get_error(con, i)) { 2656 case SSL_ERROR_NONE: 2657 #ifdef CHARSET_EBCDIC 2658 ascii2ebcdic(buf, buf, i); 2659 #endif 2660 raw_write_stdout(buf, (unsigned int)i); 2661 (void)BIO_flush(bio_s_out); 2662 if (SSL_has_pending(con)) 2663 goto again; 2664 break; 2665 case SSL_ERROR_WANT_ASYNC: 2666 BIO_printf(bio_s_out, "Read BLOCK (Async)\n"); 2667 (void)BIO_flush(bio_s_out); 2668 wait_for_async(con); 2669 break; 2670 case SSL_ERROR_WANT_WRITE: 2671 case SSL_ERROR_WANT_READ: 2672 BIO_printf(bio_s_out, "Read BLOCK\n"); 2673 (void)BIO_flush(bio_s_out); 2674 break; 2675 case SSL_ERROR_WANT_ASYNC_JOB: 2676 /* 2677 * This shouldn't ever happen in s_server. Treat as an error 2678 */ 2679 case SSL_ERROR_SYSCALL: 2680 case SSL_ERROR_SSL: 2681 BIO_printf(bio_s_out, "ERROR\n"); 2682 (void)BIO_flush(bio_s_out); 2683 ERR_print_errors(bio_err); 2684 ret = 1; 2685 goto err; 2686 case SSL_ERROR_ZERO_RETURN: 2687 BIO_printf(bio_s_out, "DONE\n"); 2688 (void)BIO_flush(bio_s_out); 2689 ret = 1; 2690 goto err; 2691 } 2692 } 2693 } 2694 } 2695 err: 2696 if (con != NULL) { 2697 BIO_printf(bio_s_out, "shutting down SSL\n"); 2698 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 2699 SSL_free(con); 2700 } 2701 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 2702 OPENSSL_clear_free(buf, bufsize); 2703 return ret; 2704 } 2705 2706 static void close_accept_socket(void) 2707 { 2708 BIO_printf(bio_err, "shutdown accept socket\n"); 2709 if (accept_socket >= 0) { 2710 BIO_closesocket(accept_socket); 2711 } 2712 } 2713 2714 static int is_retryable(SSL *con, int i) 2715 { 2716 int err = SSL_get_error(con, i); 2717 2718 /* If it's not a fatal error, it must be retryable */ 2719 return (err != SSL_ERROR_SSL) 2720 && (err != SSL_ERROR_SYSCALL) 2721 && (err != SSL_ERROR_ZERO_RETURN); 2722 } 2723 2724 static int init_ssl_connection(SSL *con) 2725 { 2726 int i; 2727 long verify_err; 2728 int retry = 0; 2729 2730 if (dtlslisten || stateless) { 2731 BIO_ADDR *client = NULL; 2732 2733 if (dtlslisten) { 2734 if ((client = BIO_ADDR_new()) == NULL) { 2735 BIO_printf(bio_err, "ERROR - memory\n"); 2736 return 0; 2737 } 2738 i = DTLSv1_listen(con, client); 2739 } else { 2740 i = SSL_stateless(con); 2741 } 2742 if (i > 0) { 2743 BIO *wbio; 2744 int fd = -1; 2745 2746 if (dtlslisten) { 2747 wbio = SSL_get_wbio(con); 2748 if (wbio) { 2749 BIO_get_fd(wbio, &fd); 2750 } 2751 2752 if (!wbio || BIO_connect(fd, client, 0) == 0) { 2753 BIO_printf(bio_err, "ERROR - unable to connect\n"); 2754 BIO_ADDR_free(client); 2755 return 0; 2756 } 2757 BIO_ADDR_free(client); 2758 dtlslisten = 0; 2759 } else { 2760 stateless = 0; 2761 } 2762 i = SSL_accept(con); 2763 } else { 2764 BIO_ADDR_free(client); 2765 } 2766 } else { 2767 do { 2768 i = SSL_accept(con); 2769 2770 if (i <= 0) 2771 retry = is_retryable(con, i); 2772 #ifdef CERT_CB_TEST_RETRY 2773 { 2774 while (i <= 0 2775 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP 2776 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) { 2777 BIO_printf(bio_err, 2778 "LOOKUP from certificate callback during accept\n"); 2779 i = SSL_accept(con); 2780 if (i <= 0) 2781 retry = is_retryable(con, i); 2782 } 2783 } 2784 #endif 2785 2786 #ifndef OPENSSL_NO_SRP 2787 while (i <= 0 2788 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { 2789 BIO_printf(bio_s_out, "LOOKUP during accept %s\n", 2790 srp_callback_parm.login); 2791 SRP_user_pwd_free(srp_callback_parm.user); 2792 srp_callback_parm.user = 2793 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 2794 srp_callback_parm.login); 2795 if (srp_callback_parm.user) 2796 BIO_printf(bio_s_out, "LOOKUP done %s\n", 2797 srp_callback_parm.user->info); 2798 else 2799 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 2800 i = SSL_accept(con); 2801 if (i <= 0) 2802 retry = is_retryable(con, i); 2803 } 2804 #endif 2805 } while (i < 0 && SSL_waiting_for_async(con)); 2806 } 2807 2808 if (i <= 0) { 2809 if (((dtlslisten || stateless) && i == 0) 2810 || (!dtlslisten && !stateless && retry)) { 2811 BIO_printf(bio_s_out, "DELAY\n"); 2812 return 1; 2813 } 2814 2815 BIO_printf(bio_err, "ERROR\n"); 2816 2817 verify_err = SSL_get_verify_result(con); 2818 if (verify_err != X509_V_OK) { 2819 BIO_printf(bio_err, "verify error:%s\n", 2820 X509_verify_cert_error_string(verify_err)); 2821 } 2822 /* Always print any error messages */ 2823 ERR_print_errors(bio_err); 2824 return 0; 2825 } 2826 2827 print_connection_info(con); 2828 return 1; 2829 } 2830 2831 static void print_connection_info(SSL *con) 2832 { 2833 const char *str; 2834 X509 *peer; 2835 char buf[BUFSIZ]; 2836 #if !defined(OPENSSL_NO_NEXTPROTONEG) 2837 const unsigned char *next_proto_neg; 2838 unsigned next_proto_neg_len; 2839 #endif 2840 unsigned char *exportedkeymat; 2841 int i; 2842 2843 if (s_brief) 2844 print_ssl_summary(con); 2845 2846 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 2847 2848 peer = SSL_get_peer_certificate(con); 2849 if (peer != NULL) { 2850 BIO_printf(bio_s_out, "Client certificate\n"); 2851 PEM_write_bio_X509(bio_s_out, peer); 2852 dump_cert_text(bio_s_out, peer); 2853 X509_free(peer); 2854 peer = NULL; 2855 } 2856 2857 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL) 2858 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 2859 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 2860 ssl_print_sigalgs(bio_s_out, con); 2861 #ifndef OPENSSL_NO_EC 2862 ssl_print_point_formats(bio_s_out, con); 2863 ssl_print_groups(bio_s_out, con, 0); 2864 #endif 2865 print_ca_names(bio_s_out, con); 2866 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 2867 2868 #if !defined(OPENSSL_NO_NEXTPROTONEG) 2869 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len); 2870 if (next_proto_neg) { 2871 BIO_printf(bio_s_out, "NEXTPROTO is "); 2872 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len); 2873 BIO_printf(bio_s_out, "\n"); 2874 } 2875 #endif 2876 #ifndef OPENSSL_NO_SRTP 2877 { 2878 SRTP_PROTECTION_PROFILE *srtp_profile 2879 = SSL_get_selected_srtp_profile(con); 2880 2881 if (srtp_profile) 2882 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", 2883 srtp_profile->name); 2884 } 2885 #endif 2886 if (SSL_session_reused(con)) 2887 BIO_printf(bio_s_out, "Reused session-id\n"); 2888 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", 2889 SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); 2890 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION)) 2891 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n"); 2892 2893 if (keymatexportlabel != NULL) { 2894 BIO_printf(bio_s_out, "Keying material exporter:\n"); 2895 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); 2896 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen); 2897 exportedkeymat = app_malloc(keymatexportlen, "export key"); 2898 if (!SSL_export_keying_material(con, exportedkeymat, 2899 keymatexportlen, 2900 keymatexportlabel, 2901 strlen(keymatexportlabel), 2902 NULL, 0, 0)) { 2903 BIO_printf(bio_s_out, " Error\n"); 2904 } else { 2905 BIO_printf(bio_s_out, " Keying material: "); 2906 for (i = 0; i < keymatexportlen; i++) 2907 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]); 2908 BIO_printf(bio_s_out, "\n"); 2909 } 2910 OPENSSL_free(exportedkeymat); 2911 } 2912 2913 (void)BIO_flush(bio_s_out); 2914 } 2915 2916 #ifndef OPENSSL_NO_DH 2917 static DH *load_dh_param(const char *dhfile) 2918 { 2919 DH *ret = NULL; 2920 BIO *bio; 2921 2922 if ((bio = BIO_new_file(dhfile, "r")) == NULL) 2923 goto err; 2924 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); 2925 err: 2926 BIO_free(bio); 2927 return ret; 2928 } 2929 #endif 2930 2931 static int www_body(int s, int stype, int prot, unsigned char *context) 2932 { 2933 char *buf = NULL; 2934 int ret = 1; 2935 int i, j, k, dot; 2936 SSL *con; 2937 const SSL_CIPHER *c; 2938 BIO *io, *ssl_bio, *sbio; 2939 #ifdef RENEG 2940 int total_bytes = 0; 2941 #endif 2942 int width; 2943 fd_set readfds; 2944 2945 /* Set width for a select call if needed */ 2946 width = s + 1; 2947 2948 buf = app_malloc(bufsize, "server www buffer"); 2949 io = BIO_new(BIO_f_buffer()); 2950 ssl_bio = BIO_new(BIO_f_ssl()); 2951 if ((io == NULL) || (ssl_bio == NULL)) 2952 goto err; 2953 2954 if (s_nbio) { 2955 if (!BIO_socket_nbio(s, 1)) 2956 ERR_print_errors(bio_err); 2957 else if (!s_quiet) 2958 BIO_printf(bio_err, "Turned on non blocking io\n"); 2959 } 2960 2961 /* lets make the output buffer a reasonable size */ 2962 if (!BIO_set_write_buffer_size(io, bufsize)) 2963 goto err; 2964 2965 if ((con = SSL_new(ctx)) == NULL) 2966 goto err; 2967 2968 if (s_tlsextdebug) { 2969 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2970 SSL_set_tlsext_debug_arg(con, bio_s_out); 2971 } 2972 2973 if (context != NULL 2974 && !SSL_set_session_id_context(con, context, 2975 strlen((char *)context))) { 2976 SSL_free(con); 2977 goto err; 2978 } 2979 2980 sbio = BIO_new_socket(s, BIO_NOCLOSE); 2981 if (s_nbio_test) { 2982 BIO *test; 2983 2984 test = BIO_new(BIO_f_nbio_test()); 2985 sbio = BIO_push(test, sbio); 2986 } 2987 SSL_set_bio(con, sbio, sbio); 2988 SSL_set_accept_state(con); 2989 2990 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ 2991 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 2992 BIO_push(io, ssl_bio); 2993 #ifdef CHARSET_EBCDIC 2994 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io); 2995 #endif 2996 2997 if (s_debug) { 2998 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 2999 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 3000 } 3001 if (s_msg) { 3002 #ifndef OPENSSL_NO_SSL_TRACE 3003 if (s_msg == 2) 3004 SSL_set_msg_callback(con, SSL_trace); 3005 else 3006 #endif 3007 SSL_set_msg_callback(con, msg_cb); 3008 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 3009 } 3010 3011 for (;;) { 3012 i = BIO_gets(io, buf, bufsize - 1); 3013 if (i < 0) { /* error */ 3014 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) { 3015 if (!s_quiet) 3016 ERR_print_errors(bio_err); 3017 goto err; 3018 } else { 3019 BIO_printf(bio_s_out, "read R BLOCK\n"); 3020 #ifndef OPENSSL_NO_SRP 3021 if (BIO_should_io_special(io) 3022 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3023 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 3024 SRP_user_pwd_free(srp_callback_parm.user); 3025 srp_callback_parm.user = 3026 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 3027 srp_callback_parm.login); 3028 if (srp_callback_parm.user) 3029 BIO_printf(bio_s_out, "LOOKUP done %s\n", 3030 srp_callback_parm.user->info); 3031 else 3032 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 3033 continue; 3034 } 3035 #endif 3036 #if !defined(OPENSSL_SYS_MSDOS) 3037 sleep(1); 3038 #endif 3039 continue; 3040 } 3041 } else if (i == 0) { /* end of input */ 3042 ret = 1; 3043 goto end; 3044 } 3045 3046 /* else we have data */ 3047 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || 3048 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { 3049 char *p; 3050 X509 *peer = NULL; 3051 STACK_OF(SSL_CIPHER) *sk; 3052 static const char *space = " "; 3053 3054 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) { 3055 if (strncmp("GET /renegcert", buf, 14) == 0) 3056 SSL_set_verify(con, 3057 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, 3058 NULL); 3059 i = SSL_renegotiate(con); 3060 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i); 3061 /* Send the HelloRequest */ 3062 i = SSL_do_handshake(con); 3063 if (i <= 0) { 3064 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", 3065 SSL_get_error(con, i)); 3066 ERR_print_errors(bio_err); 3067 goto err; 3068 } 3069 /* Wait for a ClientHello to come back */ 3070 FD_ZERO(&readfds); 3071 openssl_fdset(s, &readfds); 3072 i = select(width, (void *)&readfds, NULL, NULL, NULL); 3073 if (i <= 0 || !FD_ISSET(s, &readfds)) { 3074 BIO_printf(bio_s_out, 3075 "Error waiting for client response\n"); 3076 ERR_print_errors(bio_err); 3077 goto err; 3078 } 3079 /* 3080 * We're not actually expecting any data here and we ignore 3081 * any that is sent. This is just to force the handshake that 3082 * we're expecting to come from the client. If they haven't 3083 * sent one there's not much we can do. 3084 */ 3085 BIO_gets(io, buf, bufsize - 1); 3086 } 3087 3088 BIO_puts(io, 3089 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 3090 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 3091 BIO_puts(io, "<pre>\n"); 3092 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */ 3093 BIO_puts(io, "\n"); 3094 for (i = 0; i < local_argc; i++) { 3095 const char *myp; 3096 for (myp = local_argv[i]; *myp; myp++) 3097 switch (*myp) { 3098 case '<': 3099 BIO_puts(io, "<"); 3100 break; 3101 case '>': 3102 BIO_puts(io, ">"); 3103 break; 3104 case '&': 3105 BIO_puts(io, "&"); 3106 break; 3107 default: 3108 BIO_write(io, myp, 1); 3109 break; 3110 } 3111 BIO_write(io, " ", 1); 3112 } 3113 BIO_puts(io, "\n"); 3114 3115 BIO_printf(io, 3116 "Secure Renegotiation IS%s supported\n", 3117 SSL_get_secure_renegotiation_support(con) ? 3118 "" : " NOT"); 3119 3120 /* 3121 * The following is evil and should not really be done 3122 */ 3123 BIO_printf(io, "Ciphers supported in s_server binary\n"); 3124 sk = SSL_get_ciphers(con); 3125 j = sk_SSL_CIPHER_num(sk); 3126 for (i = 0; i < j; i++) { 3127 c = sk_SSL_CIPHER_value(sk, i); 3128 BIO_printf(io, "%-11s:%-25s ", 3129 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3130 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 3131 BIO_puts(io, "\n"); 3132 } 3133 BIO_puts(io, "\n"); 3134 p = SSL_get_shared_ciphers(con, buf, bufsize); 3135 if (p != NULL) { 3136 BIO_printf(io, 3137 "---\nCiphers common between both SSL end points:\n"); 3138 j = i = 0; 3139 while (*p) { 3140 if (*p == ':') { 3141 BIO_write(io, space, 26 - j); 3142 i++; 3143 j = 0; 3144 BIO_write(io, ((i % 3) ? " " : "\n"), 1); 3145 } else { 3146 BIO_write(io, p, 1); 3147 j++; 3148 } 3149 p++; 3150 } 3151 BIO_puts(io, "\n"); 3152 } 3153 ssl_print_sigalgs(io, con); 3154 #ifndef OPENSSL_NO_EC 3155 ssl_print_groups(io, con, 0); 3156 #endif 3157 print_ca_names(io, con); 3158 BIO_printf(io, (SSL_session_reused(con) 3159 ? "---\nReused, " : "---\nNew, ")); 3160 c = SSL_get_current_cipher(con); 3161 BIO_printf(io, "%s, Cipher is %s\n", 3162 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3163 SSL_SESSION_print(io, SSL_get_session(con)); 3164 BIO_printf(io, "---\n"); 3165 print_stats(io, SSL_get_SSL_CTX(con)); 3166 BIO_printf(io, "---\n"); 3167 peer = SSL_get_peer_certificate(con); 3168 if (peer != NULL) { 3169 BIO_printf(io, "Client certificate\n"); 3170 X509_print(io, peer); 3171 PEM_write_bio_X509(io, peer); 3172 X509_free(peer); 3173 peer = NULL; 3174 } else { 3175 BIO_puts(io, "no client certificate available\n"); 3176 } 3177 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n"); 3178 break; 3179 } else if ((www == 2 || www == 3) 3180 && (strncmp("GET /", buf, 5) == 0)) { 3181 BIO *file; 3182 char *p, *e; 3183 static const char *text = 3184 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 3185 3186 /* skip the '/' */ 3187 p = &(buf[5]); 3188 3189 dot = 1; 3190 for (e = p; *e != '\0'; e++) { 3191 if (e[0] == ' ') 3192 break; 3193 3194 switch (dot) { 3195 case 1: 3196 dot = (e[0] == '.') ? 2 : 0; 3197 break; 3198 case 2: 3199 dot = (e[0] == '.') ? 3 : 0; 3200 break; 3201 case 3: 3202 dot = (e[0] == '/') ? -1 : 0; 3203 break; 3204 } 3205 if (dot == 0) 3206 dot = (e[0] == '/') ? 1 : 0; 3207 } 3208 dot = (dot == 3) || (dot == -1); /* filename contains ".." 3209 * component */ 3210 3211 if (*e == '\0') { 3212 BIO_puts(io, text); 3213 BIO_printf(io, "'%s' is an invalid file name\r\n", p); 3214 break; 3215 } 3216 *e = '\0'; 3217 3218 if (dot) { 3219 BIO_puts(io, text); 3220 BIO_printf(io, "'%s' contains '..' reference\r\n", p); 3221 break; 3222 } 3223 3224 if (*p == '/') { 3225 BIO_puts(io, text); 3226 BIO_printf(io, "'%s' is an invalid path\r\n", p); 3227 break; 3228 } 3229 3230 /* if a directory, do the index thang */ 3231 if (app_isdir(p) > 0) { 3232 BIO_puts(io, text); 3233 BIO_printf(io, "'%s' is a directory\r\n", p); 3234 break; 3235 } 3236 3237 if ((file = BIO_new_file(p, "r")) == NULL) { 3238 BIO_puts(io, text); 3239 BIO_printf(io, "Error opening '%s'\r\n", p); 3240 ERR_print_errors(io); 3241 break; 3242 } 3243 3244 if (!s_quiet) 3245 BIO_printf(bio_err, "FILE:%s\n", p); 3246 3247 if (www == 2) { 3248 i = strlen(p); 3249 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 3250 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 3251 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 3252 BIO_puts(io, 3253 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 3254 else 3255 BIO_puts(io, 3256 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 3257 } 3258 /* send the file */ 3259 for (;;) { 3260 i = BIO_read(file, buf, bufsize); 3261 if (i <= 0) 3262 break; 3263 3264 #ifdef RENEG 3265 total_bytes += i; 3266 BIO_printf(bio_err, "%d\n", i); 3267 if (total_bytes > 3 * 1024) { 3268 total_bytes = 0; 3269 BIO_printf(bio_err, "RENEGOTIATE\n"); 3270 SSL_renegotiate(con); 3271 } 3272 #endif 3273 3274 for (j = 0; j < i;) { 3275 #ifdef RENEG 3276 static count = 0; 3277 if (++count == 13) { 3278 SSL_renegotiate(con); 3279 } 3280 #endif 3281 k = BIO_write(io, &(buf[j]), i - j); 3282 if (k <= 0) { 3283 if (!BIO_should_retry(io) 3284 && !SSL_waiting_for_async(con)) 3285 goto write_error; 3286 else { 3287 BIO_printf(bio_s_out, "rwrite W BLOCK\n"); 3288 } 3289 } else { 3290 j += k; 3291 } 3292 } 3293 } 3294 write_error: 3295 BIO_free(file); 3296 break; 3297 } 3298 } 3299 3300 for (;;) { 3301 i = (int)BIO_flush(io); 3302 if (i <= 0) { 3303 if (!BIO_should_retry(io)) 3304 break; 3305 } else 3306 break; 3307 } 3308 end: 3309 /* make sure we re-use sessions */ 3310 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 3311 3312 err: 3313 OPENSSL_free(buf); 3314 BIO_free_all(io); 3315 return ret; 3316 } 3317 3318 static int rev_body(int s, int stype, int prot, unsigned char *context) 3319 { 3320 char *buf = NULL; 3321 int i; 3322 int ret = 1; 3323 SSL *con; 3324 BIO *io, *ssl_bio, *sbio; 3325 3326 buf = app_malloc(bufsize, "server rev buffer"); 3327 io = BIO_new(BIO_f_buffer()); 3328 ssl_bio = BIO_new(BIO_f_ssl()); 3329 if ((io == NULL) || (ssl_bio == NULL)) 3330 goto err; 3331 3332 /* lets make the output buffer a reasonable size */ 3333 if (!BIO_set_write_buffer_size(io, bufsize)) 3334 goto err; 3335 3336 if ((con = SSL_new(ctx)) == NULL) 3337 goto err; 3338 3339 if (s_tlsextdebug) { 3340 SSL_set_tlsext_debug_callback(con, tlsext_cb); 3341 SSL_set_tlsext_debug_arg(con, bio_s_out); 3342 } 3343 if (context != NULL 3344 && !SSL_set_session_id_context(con, context, 3345 strlen((char *)context))) { 3346 SSL_free(con); 3347 ERR_print_errors(bio_err); 3348 goto err; 3349 } 3350 3351 sbio = BIO_new_socket(s, BIO_NOCLOSE); 3352 SSL_set_bio(con, sbio, sbio); 3353 SSL_set_accept_state(con); 3354 3355 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ 3356 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 3357 BIO_push(io, ssl_bio); 3358 #ifdef CHARSET_EBCDIC 3359 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io); 3360 #endif 3361 3362 if (s_debug) { 3363 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 3364 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 3365 } 3366 if (s_msg) { 3367 #ifndef OPENSSL_NO_SSL_TRACE 3368 if (s_msg == 2) 3369 SSL_set_msg_callback(con, SSL_trace); 3370 else 3371 #endif 3372 SSL_set_msg_callback(con, msg_cb); 3373 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 3374 } 3375 3376 for (;;) { 3377 i = BIO_do_handshake(io); 3378 if (i > 0) 3379 break; 3380 if (!BIO_should_retry(io)) { 3381 BIO_puts(bio_err, "CONNECTION FAILURE\n"); 3382 ERR_print_errors(bio_err); 3383 goto end; 3384 } 3385 #ifndef OPENSSL_NO_SRP 3386 if (BIO_should_io_special(io) 3387 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3388 BIO_printf(bio_s_out, "LOOKUP renego during accept\n"); 3389 SRP_user_pwd_free(srp_callback_parm.user); 3390 srp_callback_parm.user = 3391 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 3392 srp_callback_parm.login); 3393 if (srp_callback_parm.user) 3394 BIO_printf(bio_s_out, "LOOKUP done %s\n", 3395 srp_callback_parm.user->info); 3396 else 3397 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 3398 continue; 3399 } 3400 #endif 3401 } 3402 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n"); 3403 print_ssl_summary(con); 3404 3405 for (;;) { 3406 i = BIO_gets(io, buf, bufsize - 1); 3407 if (i < 0) { /* error */ 3408 if (!BIO_should_retry(io)) { 3409 if (!s_quiet) 3410 ERR_print_errors(bio_err); 3411 goto err; 3412 } else { 3413 BIO_printf(bio_s_out, "read R BLOCK\n"); 3414 #ifndef OPENSSL_NO_SRP 3415 if (BIO_should_io_special(io) 3416 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3417 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 3418 SRP_user_pwd_free(srp_callback_parm.user); 3419 srp_callback_parm.user = 3420 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 3421 srp_callback_parm.login); 3422 if (srp_callback_parm.user) 3423 BIO_printf(bio_s_out, "LOOKUP done %s\n", 3424 srp_callback_parm.user->info); 3425 else 3426 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 3427 continue; 3428 } 3429 #endif 3430 #if !defined(OPENSSL_SYS_MSDOS) 3431 sleep(1); 3432 #endif 3433 continue; 3434 } 3435 } else if (i == 0) { /* end of input */ 3436 ret = 1; 3437 BIO_printf(bio_err, "CONNECTION CLOSED\n"); 3438 goto end; 3439 } else { 3440 char *p = buf + i - 1; 3441 while (i && (*p == '\n' || *p == '\r')) { 3442 p--; 3443 i--; 3444 } 3445 if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) { 3446 ret = 1; 3447 BIO_printf(bio_err, "CONNECTION CLOSED\n"); 3448 goto end; 3449 } 3450 BUF_reverse((unsigned char *)buf, NULL, i); 3451 buf[i] = '\n'; 3452 BIO_write(io, buf, i + 1); 3453 for (;;) { 3454 i = BIO_flush(io); 3455 if (i > 0) 3456 break; 3457 if (!BIO_should_retry(io)) 3458 goto end; 3459 } 3460 } 3461 } 3462 end: 3463 /* make sure we re-use sessions */ 3464 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 3465 3466 err: 3467 3468 OPENSSL_free(buf); 3469 BIO_free_all(io); 3470 return ret; 3471 } 3472 3473 #define MAX_SESSION_ID_ATTEMPTS 10 3474 static int generate_session_id(SSL *ssl, unsigned char *id, 3475 unsigned int *id_len) 3476 { 3477 unsigned int count = 0; 3478 do { 3479 if (RAND_bytes(id, *id_len) <= 0) 3480 return 0; 3481 /* 3482 * Prefix the session_id with the required prefix. NB: If our prefix 3483 * is too long, clip it - but there will be worse effects anyway, eg. 3484 * the server could only possibly create 1 session ID (ie. the 3485 * prefix!) so all future session negotiations will fail due to 3486 * conflicts. 3487 */ 3488 memcpy(id, session_id_prefix, 3489 (strlen(session_id_prefix) < *id_len) ? 3490 strlen(session_id_prefix) : *id_len); 3491 } 3492 while (SSL_has_matching_session_id(ssl, id, *id_len) && 3493 (++count < MAX_SESSION_ID_ATTEMPTS)); 3494 if (count >= MAX_SESSION_ID_ATTEMPTS) 3495 return 0; 3496 return 1; 3497 } 3498 3499 /* 3500 * By default s_server uses an in-memory cache which caches SSL_SESSION 3501 * structures without any serialisation. This hides some bugs which only 3502 * become apparent in deployed servers. By implementing a basic external 3503 * session cache some issues can be debugged using s_server. 3504 */ 3505 3506 typedef struct simple_ssl_session_st { 3507 unsigned char *id; 3508 unsigned int idlen; 3509 unsigned char *der; 3510 int derlen; 3511 struct simple_ssl_session_st *next; 3512 } simple_ssl_session; 3513 3514 static simple_ssl_session *first = NULL; 3515 3516 static int add_session(SSL *ssl, SSL_SESSION *session) 3517 { 3518 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session"); 3519 unsigned char *p; 3520 3521 SSL_SESSION_get_id(session, &sess->idlen); 3522 sess->derlen = i2d_SSL_SESSION(session, NULL); 3523 if (sess->derlen < 0) { 3524 BIO_printf(bio_err, "Error encoding session\n"); 3525 OPENSSL_free(sess); 3526 return 0; 3527 } 3528 3529 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen); 3530 sess->der = app_malloc(sess->derlen, "get session buffer"); 3531 if (!sess->id) { 3532 BIO_printf(bio_err, "Out of memory adding to external cache\n"); 3533 OPENSSL_free(sess->id); 3534 OPENSSL_free(sess->der); 3535 OPENSSL_free(sess); 3536 return 0; 3537 } 3538 p = sess->der; 3539 3540 /* Assume it still works. */ 3541 if (i2d_SSL_SESSION(session, &p) != sess->derlen) { 3542 BIO_printf(bio_err, "Unexpected session encoding length\n"); 3543 OPENSSL_free(sess->id); 3544 OPENSSL_free(sess->der); 3545 OPENSSL_free(sess); 3546 return 0; 3547 } 3548 3549 sess->next = first; 3550 first = sess; 3551 BIO_printf(bio_err, "New session added to external cache\n"); 3552 return 0; 3553 } 3554 3555 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen, 3556 int *do_copy) 3557 { 3558 simple_ssl_session *sess; 3559 *do_copy = 0; 3560 for (sess = first; sess; sess = sess->next) { 3561 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) { 3562 const unsigned char *p = sess->der; 3563 BIO_printf(bio_err, "Lookup session: cache hit\n"); 3564 return d2i_SSL_SESSION(NULL, &p, sess->derlen); 3565 } 3566 } 3567 BIO_printf(bio_err, "Lookup session: cache miss\n"); 3568 return NULL; 3569 } 3570 3571 static void del_session(SSL_CTX *sctx, SSL_SESSION *session) 3572 { 3573 simple_ssl_session *sess, *prev = NULL; 3574 const unsigned char *id; 3575 unsigned int idlen; 3576 id = SSL_SESSION_get_id(session, &idlen); 3577 for (sess = first; sess; sess = sess->next) { 3578 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) { 3579 if (prev) 3580 prev->next = sess->next; 3581 else 3582 first = sess->next; 3583 OPENSSL_free(sess->id); 3584 OPENSSL_free(sess->der); 3585 OPENSSL_free(sess); 3586 return; 3587 } 3588 prev = sess; 3589 } 3590 } 3591 3592 static void init_session_cache_ctx(SSL_CTX *sctx) 3593 { 3594 SSL_CTX_set_session_cache_mode(sctx, 3595 SSL_SESS_CACHE_NO_INTERNAL | 3596 SSL_SESS_CACHE_SERVER); 3597 SSL_CTX_sess_set_new_cb(sctx, add_session); 3598 SSL_CTX_sess_set_get_cb(sctx, get_session); 3599 SSL_CTX_sess_set_remove_cb(sctx, del_session); 3600 } 3601 3602 static void free_sessions(void) 3603 { 3604 simple_ssl_session *sess, *tsess; 3605 for (sess = first; sess;) { 3606 OPENSSL_free(sess->id); 3607 OPENSSL_free(sess->der); 3608 tsess = sess; 3609 sess = sess->next; 3610 OPENSSL_free(tsess); 3611 } 3612 first = NULL; 3613 } 3614 3615 #endif /* OPENSSL_NO_SOCK */ 3616