1 /* 2 * Copyright 1995-2021 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"); 136 137 if (SSL_version(ssl) >= TLS1_3_VERSION) { 138 /* 139 * This callback is designed for use in TLSv1.2. It is possible to use 140 * a single callback for all protocol versions - but it is preferred to 141 * use a dedicated callback for TLSv1.3. For TLSv1.3 we have 142 * psk_find_session_cb. 143 */ 144 return 0; 145 } 146 147 if (identity == NULL) { 148 BIO_printf(bio_err, "Error: client did not send PSK identity\n"); 149 goto out_err; 150 } 151 if (s_debug) 152 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n", 153 (int)strlen(identity), identity); 154 155 /* here we could lookup the given identity e.g. from a database */ 156 if (strcmp(identity, psk_identity) != 0) { 157 BIO_printf(bio_s_out, "PSK warning: client identity not what we expected" 158 " (got '%s' expected '%s')\n", identity, psk_identity); 159 } else { 160 if (s_debug) 161 BIO_printf(bio_s_out, "PSK client identity found\n"); 162 } 163 164 /* convert the PSK key to binary */ 165 key = OPENSSL_hexstr2buf(psk_key, &key_len); 166 if (key == NULL) { 167 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 168 psk_key); 169 return 0; 170 } 171 if (key_len > (int)max_psk_len) { 172 BIO_printf(bio_err, 173 "psk buffer of callback is too small (%d) for key (%ld)\n", 174 max_psk_len, key_len); 175 OPENSSL_free(key); 176 return 0; 177 } 178 179 memcpy(psk, key, key_len); 180 OPENSSL_free(key); 181 182 if (s_debug) 183 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len); 184 return key_len; 185 out_err: 186 if (s_debug) 187 BIO_printf(bio_err, "Error in PSK server callback\n"); 188 (void)BIO_flush(bio_err); 189 (void)BIO_flush(bio_s_out); 190 return 0; 191 } 192 #endif 193 194 static int psk_find_session_cb(SSL *ssl, const unsigned char *identity, 195 size_t identity_len, SSL_SESSION **sess) 196 { 197 SSL_SESSION *tmpsess = NULL; 198 unsigned char *key; 199 long key_len; 200 const SSL_CIPHER *cipher = NULL; 201 202 if (strlen(psk_identity) != identity_len 203 || memcmp(psk_identity, identity, identity_len) != 0) { 204 *sess = NULL; 205 return 1; 206 } 207 208 if (psksess != NULL) { 209 SSL_SESSION_up_ref(psksess); 210 *sess = psksess; 211 return 1; 212 } 213 214 key = OPENSSL_hexstr2buf(psk_key, &key_len); 215 if (key == NULL) { 216 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 217 psk_key); 218 return 0; 219 } 220 221 /* We default to SHA256 */ 222 cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id); 223 if (cipher == NULL) { 224 BIO_printf(bio_err, "Error finding suitable ciphersuite\n"); 225 OPENSSL_free(key); 226 return 0; 227 } 228 229 tmpsess = SSL_SESSION_new(); 230 if (tmpsess == NULL 231 || !SSL_SESSION_set1_master_key(tmpsess, key, key_len) 232 || !SSL_SESSION_set_cipher(tmpsess, cipher) 233 || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) { 234 OPENSSL_free(key); 235 return 0; 236 } 237 OPENSSL_free(key); 238 *sess = tmpsess; 239 240 return 1; 241 } 242 243 #ifndef OPENSSL_NO_SRP 244 /* This is a context that we pass to callbacks */ 245 typedef struct srpsrvparm_st { 246 char *login; 247 SRP_VBASE *vb; 248 SRP_user_pwd *user; 249 } srpsrvparm; 250 static srpsrvparm srp_callback_parm; 251 252 /* 253 * This callback pretends to require some asynchronous logic in order to 254 * obtain a verifier. When the callback is called for a new connection we 255 * return with a negative value. This will provoke the accept etc to return 256 * with an LOOKUP_X509. The main logic of the reinvokes the suspended call 257 * (which would normally occur after a worker has finished) and we set the 258 * user parameters. 259 */ 260 static int ssl_srp_server_param_cb(SSL *s, int *ad, void *arg) 261 { 262 srpsrvparm *p = (srpsrvparm *) arg; 263 int ret = SSL3_AL_FATAL; 264 265 if (p->login == NULL && p->user == NULL) { 266 p->login = SSL_get_srp_username(s); 267 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login); 268 return -1; 269 } 270 271 if (p->user == NULL) { 272 BIO_printf(bio_err, "User %s doesn't exist\n", p->login); 273 goto err; 274 } 275 276 if (SSL_set_srp_server_param 277 (s, p->user->N, p->user->g, p->user->s, p->user->v, 278 p->user->info) < 0) { 279 *ad = SSL_AD_INTERNAL_ERROR; 280 goto err; 281 } 282 BIO_printf(bio_err, 283 "SRP parameters set: username = \"%s\" info=\"%s\" \n", 284 p->login, p->user->info); 285 ret = SSL_ERROR_NONE; 286 287 err: 288 SRP_user_pwd_free(p->user); 289 p->user = NULL; 290 p->login = NULL; 291 return ret; 292 } 293 294 #endif 295 296 static int local_argc = 0; 297 static char **local_argv; 298 299 #ifdef CHARSET_EBCDIC 300 static int ebcdic_new(BIO *bi); 301 static int ebcdic_free(BIO *a); 302 static int ebcdic_read(BIO *b, char *out, int outl); 303 static int ebcdic_write(BIO *b, const char *in, int inl); 304 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr); 305 static int ebcdic_gets(BIO *bp, char *buf, int size); 306 static int ebcdic_puts(BIO *bp, const char *str); 307 308 # define BIO_TYPE_EBCDIC_FILTER (18|0x0200) 309 static BIO_METHOD *methods_ebcdic = NULL; 310 311 /* This struct is "unwarranted chumminess with the compiler." */ 312 typedef struct { 313 size_t alloced; 314 char buff[1]; 315 } EBCDIC_OUTBUFF; 316 317 static const BIO_METHOD *BIO_f_ebcdic_filter() 318 { 319 if (methods_ebcdic == NULL) { 320 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER, 321 "EBCDIC/ASCII filter"); 322 if (methods_ebcdic == NULL 323 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write) 324 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read) 325 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts) 326 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets) 327 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl) 328 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new) 329 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free)) 330 return NULL; 331 } 332 return methods_ebcdic; 333 } 334 335 static int ebcdic_new(BIO *bi) 336 { 337 EBCDIC_OUTBUFF *wbuf; 338 339 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf"); 340 wbuf->alloced = 1024; 341 wbuf->buff[0] = '\0'; 342 343 BIO_set_data(bi, wbuf); 344 BIO_set_init(bi, 1); 345 return 1; 346 } 347 348 static int ebcdic_free(BIO *a) 349 { 350 EBCDIC_OUTBUFF *wbuf; 351 352 if (a == NULL) 353 return 0; 354 wbuf = BIO_get_data(a); 355 OPENSSL_free(wbuf); 356 BIO_set_data(a, NULL); 357 BIO_set_init(a, 0); 358 359 return 1; 360 } 361 362 static int ebcdic_read(BIO *b, char *out, int outl) 363 { 364 int ret = 0; 365 BIO *next = BIO_next(b); 366 367 if (out == NULL || outl == 0) 368 return 0; 369 if (next == NULL) 370 return 0; 371 372 ret = BIO_read(next, out, outl); 373 if (ret > 0) 374 ascii2ebcdic(out, out, ret); 375 return ret; 376 } 377 378 static int ebcdic_write(BIO *b, const char *in, int inl) 379 { 380 EBCDIC_OUTBUFF *wbuf; 381 BIO *next = BIO_next(b); 382 int ret = 0; 383 int num; 384 385 if ((in == NULL) || (inl <= 0)) 386 return 0; 387 if (next == NULL) 388 return 0; 389 390 wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b); 391 392 if (inl > (num = wbuf->alloced)) { 393 num = num + num; /* double the size */ 394 if (num < inl) 395 num = inl; 396 OPENSSL_free(wbuf); 397 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf"); 398 399 wbuf->alloced = num; 400 wbuf->buff[0] = '\0'; 401 402 BIO_set_data(b, wbuf); 403 } 404 405 ebcdic2ascii(wbuf->buff, in, inl); 406 407 ret = BIO_write(next, wbuf->buff, inl); 408 409 return ret; 410 } 411 412 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr) 413 { 414 long ret; 415 BIO *next = BIO_next(b); 416 417 if (next == NULL) 418 return 0; 419 switch (cmd) { 420 case BIO_CTRL_DUP: 421 ret = 0L; 422 break; 423 default: 424 ret = BIO_ctrl(next, cmd, num, ptr); 425 break; 426 } 427 return ret; 428 } 429 430 static int ebcdic_gets(BIO *bp, char *buf, int size) 431 { 432 int i, ret = 0; 433 BIO *next = BIO_next(bp); 434 435 if (next == NULL) 436 return 0; 437 /* return(BIO_gets(bp->next_bio,buf,size));*/ 438 for (i = 0; i < size - 1; ++i) { 439 ret = ebcdic_read(bp, &buf[i], 1); 440 if (ret <= 0) 441 break; 442 else if (buf[i] == '\n') { 443 ++i; 444 break; 445 } 446 } 447 if (i < size) 448 buf[i] = '\0'; 449 return (ret < 0 && i == 0) ? ret : i; 450 } 451 452 static int ebcdic_puts(BIO *bp, const char *str) 453 { 454 if (BIO_next(bp) == NULL) 455 return 0; 456 return ebcdic_write(bp, str, strlen(str)); 457 } 458 #endif 459 460 /* This is a context that we pass to callbacks */ 461 typedef struct tlsextctx_st { 462 char *servername; 463 BIO *biodebug; 464 int extension_error; 465 } tlsextctx; 466 467 static int ssl_servername_cb(SSL *s, int *ad, void *arg) 468 { 469 tlsextctx *p = (tlsextctx *) arg; 470 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 471 472 if (servername != NULL && p->biodebug != NULL) { 473 const char *cp = servername; 474 unsigned char uc; 475 476 BIO_printf(p->biodebug, "Hostname in TLS extension: \""); 477 while ((uc = *cp++) != 0) 478 BIO_printf(p->biodebug, 479 isascii(uc) && isprint(uc) ? "%c" : "\\x%02x", uc); 480 BIO_printf(p->biodebug, "\"\n"); 481 } 482 483 if (p->servername == NULL) 484 return SSL_TLSEXT_ERR_NOACK; 485 486 if (servername != NULL) { 487 if (strcasecmp(servername, p->servername)) 488 return p->extension_error; 489 if (ctx2 != NULL) { 490 BIO_printf(p->biodebug, "Switching server context.\n"); 491 SSL_set_SSL_CTX(s, ctx2); 492 } 493 } 494 return SSL_TLSEXT_ERR_OK; 495 } 496 497 /* Structure passed to cert status callback */ 498 typedef struct tlsextstatusctx_st { 499 int timeout; 500 /* File to load OCSP Response from (or NULL if no file) */ 501 char *respin; 502 /* Default responder to use */ 503 char *host, *path, *port; 504 int use_ssl; 505 int verbose; 506 } tlsextstatusctx; 507 508 static tlsextstatusctx tlscstatp = { -1 }; 509 510 #ifndef OPENSSL_NO_OCSP 511 512 /* 513 * Helper function to get an OCSP_RESPONSE from a responder. This is a 514 * simplified version. It examines certificates each time and makes one OCSP 515 * responder query for each request. A full version would store details such as 516 * the OCSP certificate IDs and minimise the number of OCSP responses by caching 517 * them until they were considered "expired". 518 */ 519 static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx, 520 OCSP_RESPONSE **resp) 521 { 522 char *host = NULL, *port = NULL, *path = NULL; 523 int use_ssl; 524 STACK_OF(OPENSSL_STRING) *aia = NULL; 525 X509 *x = NULL; 526 X509_STORE_CTX *inctx = NULL; 527 X509_OBJECT *obj; 528 OCSP_REQUEST *req = NULL; 529 OCSP_CERTID *id = NULL; 530 STACK_OF(X509_EXTENSION) *exts; 531 int ret = SSL_TLSEXT_ERR_NOACK; 532 int i; 533 534 /* Build up OCSP query from server certificate */ 535 x = SSL_get_certificate(s); 536 aia = X509_get1_ocsp(x); 537 if (aia != NULL) { 538 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0), 539 &host, &port, &path, &use_ssl)) { 540 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n"); 541 goto err; 542 } 543 if (srctx->verbose) 544 BIO_printf(bio_err, "cert_status: AIA URL: %s\n", 545 sk_OPENSSL_STRING_value(aia, 0)); 546 } else { 547 if (srctx->host == NULL) { 548 BIO_puts(bio_err, 549 "cert_status: no AIA and no default responder URL\n"); 550 goto done; 551 } 552 host = srctx->host; 553 path = srctx->path; 554 port = srctx->port; 555 use_ssl = srctx->use_ssl; 556 } 557 558 inctx = X509_STORE_CTX_new(); 559 if (inctx == NULL) 560 goto err; 561 if (!X509_STORE_CTX_init(inctx, 562 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), 563 NULL, NULL)) 564 goto err; 565 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509, 566 X509_get_issuer_name(x)); 567 if (obj == NULL) { 568 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n"); 569 goto done; 570 } 571 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj)); 572 X509_OBJECT_free(obj); 573 if (id == NULL) 574 goto err; 575 req = OCSP_REQUEST_new(); 576 if (req == NULL) 577 goto err; 578 if (!OCSP_request_add0_id(req, id)) 579 goto err; 580 id = NULL; 581 /* Add any extensions to the request */ 582 SSL_get_tlsext_status_exts(s, &exts); 583 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { 584 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); 585 if (!OCSP_REQUEST_add_ext(req, ext, -1)) 586 goto err; 587 } 588 *resp = process_responder(req, host, path, port, use_ssl, NULL, 589 srctx->timeout); 590 if (*resp == NULL) { 591 BIO_puts(bio_err, "cert_status: error querying responder\n"); 592 goto done; 593 } 594 595 ret = SSL_TLSEXT_ERR_OK; 596 goto done; 597 598 err: 599 ret = SSL_TLSEXT_ERR_ALERT_FATAL; 600 done: 601 /* 602 * If we parsed aia we need to free; otherwise they were copied and we 603 * don't 604 */ 605 if (aia != NULL) { 606 OPENSSL_free(host); 607 OPENSSL_free(path); 608 OPENSSL_free(port); 609 X509_email_free(aia); 610 } 611 OCSP_CERTID_free(id); 612 OCSP_REQUEST_free(req); 613 X509_STORE_CTX_free(inctx); 614 return ret; 615 } 616 617 /* 618 * Certificate Status callback. This is called when a client includes a 619 * certificate status request extension. The response is either obtained from a 620 * file, or from an OCSP responder. 621 */ 622 static int cert_status_cb(SSL *s, void *arg) 623 { 624 tlsextstatusctx *srctx = arg; 625 OCSP_RESPONSE *resp = NULL; 626 unsigned char *rspder = NULL; 627 int rspderlen; 628 int ret = SSL_TLSEXT_ERR_ALERT_FATAL; 629 630 if (srctx->verbose) 631 BIO_puts(bio_err, "cert_status: callback called\n"); 632 633 if (srctx->respin != NULL) { 634 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1); 635 if (derbio == NULL) { 636 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n"); 637 goto err; 638 } 639 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); 640 BIO_free(derbio); 641 if (resp == NULL) { 642 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n"); 643 goto err; 644 } 645 } else { 646 ret = get_ocsp_resp_from_responder(s, srctx, &resp); 647 if (ret != SSL_TLSEXT_ERR_OK) 648 goto err; 649 } 650 651 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); 652 if (rspderlen <= 0) 653 goto err; 654 655 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); 656 if (srctx->verbose) { 657 BIO_puts(bio_err, "cert_status: ocsp response sent:\n"); 658 OCSP_RESPONSE_print(bio_err, resp, 2); 659 } 660 661 ret = SSL_TLSEXT_ERR_OK; 662 663 err: 664 if (ret != SSL_TLSEXT_ERR_OK) 665 ERR_print_errors(bio_err); 666 667 OCSP_RESPONSE_free(resp); 668 669 return ret; 670 } 671 #endif 672 673 #ifndef OPENSSL_NO_NEXTPROTONEG 674 /* This is the context that we pass to next_proto_cb */ 675 typedef struct tlsextnextprotoctx_st { 676 unsigned char *data; 677 size_t len; 678 } tlsextnextprotoctx; 679 680 static int next_proto_cb(SSL *s, const unsigned char **data, 681 unsigned int *len, void *arg) 682 { 683 tlsextnextprotoctx *next_proto = arg; 684 685 *data = next_proto->data; 686 *len = next_proto->len; 687 688 return SSL_TLSEXT_ERR_OK; 689 } 690 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 691 692 /* This the context that we pass to alpn_cb */ 693 typedef struct tlsextalpnctx_st { 694 unsigned char *data; 695 size_t len; 696 } tlsextalpnctx; 697 698 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 699 const unsigned char *in, unsigned int inlen, void *arg) 700 { 701 tlsextalpnctx *alpn_ctx = arg; 702 703 if (!s_quiet) { 704 /* We can assume that |in| is syntactically valid. */ 705 unsigned int i; 706 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: "); 707 for (i = 0; i < inlen;) { 708 if (i) 709 BIO_write(bio_s_out, ", ", 2); 710 BIO_write(bio_s_out, &in[i + 1], in[i]); 711 i += in[i] + 1; 712 } 713 BIO_write(bio_s_out, "\n", 1); 714 } 715 716 if (SSL_select_next_proto 717 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in, 718 inlen) != OPENSSL_NPN_NEGOTIATED) { 719 return SSL_TLSEXT_ERR_NOACK; 720 } 721 722 if (!s_quiet) { 723 BIO_printf(bio_s_out, "ALPN protocols selected: "); 724 BIO_write(bio_s_out, *out, *outlen); 725 BIO_write(bio_s_out, "\n", 1); 726 } 727 728 return SSL_TLSEXT_ERR_OK; 729 } 730 731 static int not_resumable_sess_cb(SSL *s, int is_forward_secure) 732 { 733 /* disable resumption for sessions with forward secure ciphers */ 734 return is_forward_secure; 735 } 736 737 typedef enum OPTION_choice { 738 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ENGINE, 739 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT, 740 OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL, 741 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM, 742 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT, 743 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT, 744 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE, 745 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, 746 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, 747 OPT_VERIFYCAFILE, OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF, 748 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE, 749 OPT_STATUS_TIMEOUT, OPT_STATUS_URL, OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE, 750 OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE, 751 OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE, 752 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK, 753 OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW, 754 OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG, 755 OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF, 756 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, 757 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS, 758 OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL, 759 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, 760 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, 761 OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA, 762 OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, OPT_SCTP_LABEL_BUG, 763 OPT_R_ENUM, 764 OPT_S_ENUM, 765 OPT_V_ENUM, 766 OPT_X_ENUM 767 } OPTION_CHOICE; 768 769 const OPTIONS s_server_options[] = { 770 {"help", OPT_HELP, '-', "Display this summary"}, 771 {"port", OPT_PORT, 'p', 772 "TCP/IP port to listen on for connections (default is " PORT ")"}, 773 {"accept", OPT_ACCEPT, 's', 774 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"}, 775 #ifdef AF_UNIX 776 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"}, 777 #endif 778 {"4", OPT_4, '-', "Use IPv4 only"}, 779 {"6", OPT_6, '-', "Use IPv6 only"}, 780 #ifdef AF_UNIX 781 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"}, 782 #endif 783 {"context", OPT_CONTEXT, 's', "Set session ID context"}, 784 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"}, 785 {"Verify", OPT_UPPER_V_VERIFY, 'n', 786 "Turn on peer certificate verification, must have a cert"}, 787 {"cert", OPT_CERT, '<', "Certificate file to use; default is " TEST_CERT}, 788 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"}, 789 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"}, 790 {"serverinfo", OPT_SERVERINFO, 's', 791 "PEM serverinfo file for certificate"}, 792 {"certform", OPT_CERTFORM, 'F', 793 "Certificate format (PEM or DER) PEM default"}, 794 {"key", OPT_KEY, 's', 795 "Private Key if not in -cert; default is " TEST_CERT}, 796 {"keyform", OPT_KEYFORM, 'f', 797 "Key format (PEM, DER or ENGINE) PEM default"}, 798 {"pass", OPT_PASS, 's', "Private key file pass phrase source"}, 799 {"dcert", OPT_DCERT, '<', 800 "Second certificate file to use (usually for DSA)"}, 801 {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"}, 802 {"dcertform", OPT_DCERTFORM, 'F', 803 "Second certificate format (PEM or DER) PEM default"}, 804 {"dkey", OPT_DKEY, '<', 805 "Second private key file to use (usually for DSA)"}, 806 {"dkeyform", OPT_DKEYFORM, 'F', 807 "Second key format (PEM, DER or ENGINE) PEM default"}, 808 {"dpass", OPT_DPASS, 's', "Second private key file pass phrase source"}, 809 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"}, 810 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, 811 {"debug", OPT_DEBUG, '-', "Print more output"}, 812 {"msg", OPT_MSG, '-', "Show protocol messages"}, 813 {"msgfile", OPT_MSGFILE, '>', 814 "File to send output of -msg or -trace, instead of stdout"}, 815 {"state", OPT_STATE, '-', "Print the SSL states"}, 816 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"}, 817 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, 818 {"no-CAfile", OPT_NOCAFILE, '-', 819 "Do not load the default certificates file"}, 820 {"no-CApath", OPT_NOCAPATH, '-', 821 "Do not load certificates from the default certificates directory"}, 822 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"}, 823 {"quiet", OPT_QUIET, '-', "No server output"}, 824 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-', 825 "Disable caching and tickets if ephemeral (EC)DH is used"}, 826 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"}, 827 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"}, 828 {"servername", OPT_SERVERNAME, 's', 829 "Servername for HostName TLS extension"}, 830 {"servername_fatal", OPT_SERVERNAME_FATAL, '-', 831 "mismatch send fatal alert (default warning alert)"}, 832 {"cert2", OPT_CERT2, '<', 833 "Certificate file to use for servername; default is" TEST_CERT2}, 834 {"key2", OPT_KEY2, '<', 835 "-Private Key file to use for servername if not in -cert2"}, 836 {"tlsextdebug", OPT_TLSEXTDEBUG, '-', 837 "Hex dump of all TLS extensions received"}, 838 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"}, 839 {"id_prefix", OPT_ID_PREFIX, 's', 840 "Generate SSL/TLS session IDs prefixed by arg"}, 841 OPT_R_OPTIONS, 842 {"keymatexport", OPT_KEYMATEXPORT, 's', 843 "Export keying material using label"}, 844 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', 845 "Export len bytes of keying material (default 20)"}, 846 {"CRL", OPT_CRL, '<', "CRL file to use"}, 847 {"crl_download", OPT_CRL_DOWNLOAD, '-', 848 "Download CRL from distribution points"}, 849 {"cert_chain", OPT_CERT_CHAIN, '<', 850 "certificate chain file in PEM format"}, 851 {"dcert_chain", OPT_DCERT_CHAIN, '<', 852 "second certificate chain file in PEM format"}, 853 {"chainCApath", OPT_CHAINCAPATH, '/', 854 "use dir as certificate store path to build CA certificate chain"}, 855 {"verifyCApath", OPT_VERIFYCAPATH, '/', 856 "use dir as certificate store path to verify CA certificate"}, 857 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"}, 858 {"ext_cache", OPT_EXT_CACHE, '-', 859 "Disable internal cache, setup and use external cache"}, 860 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"}, 861 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-', 862 "Close connection on verification error"}, 863 {"verify_quiet", OPT_VERIFY_QUIET, '-', 864 "No verify output except verify errors"}, 865 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"}, 866 {"chainCAfile", OPT_CHAINCAFILE, '<', 867 "CA file for certificate chain (PEM format)"}, 868 {"verifyCAfile", OPT_VERIFYCAFILE, '<', 869 "CA file for certificate verification (PEM format)"}, 870 {"ign_eof", OPT_IGN_EOF, '-', "ignore input eof (default when -quiet)"}, 871 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input eof"}, 872 #ifndef OPENSSL_NO_OCSP 873 {"status", OPT_STATUS, '-', "Request certificate status from server"}, 874 {"status_verbose", OPT_STATUS_VERBOSE, '-', 875 "Print more output in certificate status callback"}, 876 {"status_timeout", OPT_STATUS_TIMEOUT, 'n', 877 "Status request responder timeout"}, 878 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"}, 879 {"status_file", OPT_STATUS_FILE, '<', 880 "File containing DER encoded OCSP Response"}, 881 #endif 882 #ifndef OPENSSL_NO_SSL_TRACE 883 {"trace", OPT_TRACE, '-', "trace protocol messages"}, 884 #endif 885 {"security_debug", OPT_SECURITY_DEBUG, '-', 886 "Print output from SSL/TLS security framework"}, 887 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-', 888 "Print more output from SSL/TLS security framework"}, 889 {"brief", OPT_BRIEF, '-', 890 "Restrict output to brief summary of connection parameters"}, 891 {"rev", OPT_REV, '-', 892 "act as a simple test server which just sends back with the received text reversed"}, 893 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"}, 894 {"ssl_config", OPT_SSL_CONFIG, 's', 895 "Configure SSL_CTX using the configuration 'val'"}, 896 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "}, 897 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p', 898 "Size used to split data for encrypt pipelines"}, 899 {"max_pipelines", OPT_MAX_PIPELINES, 'p', 900 "Maximum number of encrypt/decrypt pipelines to be used"}, 901 {"read_buf", OPT_READ_BUF, 'p', 902 "Default read buffer size to be used for connections"}, 903 OPT_S_OPTIONS, 904 OPT_V_OPTIONS, 905 OPT_X_OPTIONS, 906 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, 907 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"}, 908 #ifndef OPENSSL_NO_PSK 909 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"}, 910 #endif 911 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, 912 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"}, 913 #ifndef OPENSSL_NO_SRP 914 {"srpvfile", OPT_SRPVFILE, '<', "The verifier file for SRP"}, 915 {"srpuserseed", OPT_SRPUSERSEED, 's', 916 "A seed string for a default user salt"}, 917 #endif 918 #ifndef OPENSSL_NO_SSL3 919 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"}, 920 #endif 921 #ifndef OPENSSL_NO_TLS1 922 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"}, 923 #endif 924 #ifndef OPENSSL_NO_TLS1_1 925 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"}, 926 #endif 927 #ifndef OPENSSL_NO_TLS1_2 928 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"}, 929 #endif 930 #ifndef OPENSSL_NO_TLS1_3 931 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"}, 932 #endif 933 #ifndef OPENSSL_NO_DTLS 934 {"dtls", OPT_DTLS, '-', "Use any DTLS version"}, 935 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"}, 936 {"mtu", OPT_MTU, 'p', "Set link layer MTU"}, 937 {"listen", OPT_LISTEN, '-', 938 "Listen for a DTLS ClientHello with a cookie and then connect"}, 939 #endif 940 {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"}, 941 #ifndef OPENSSL_NO_DTLS1 942 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"}, 943 #endif 944 #ifndef OPENSSL_NO_DTLS1_2 945 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"}, 946 #endif 947 #ifndef OPENSSL_NO_SCTP 948 {"sctp", OPT_SCTP, '-', "Use SCTP"}, 949 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"}, 950 #endif 951 #ifndef OPENSSL_NO_DH 952 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"}, 953 #endif 954 #ifndef OPENSSL_NO_NEXTPROTONEG 955 {"nextprotoneg", OPT_NEXTPROTONEG, 's', 956 "Set the advertised protocols for the NPN extension (comma-separated list)"}, 957 #endif 958 #ifndef OPENSSL_NO_SRTP 959 {"use_srtp", OPT_SRTP_PROFILES, 's', 960 "Offer SRTP key management with a colon-separated profile list"}, 961 #endif 962 {"alpn", OPT_ALPN, 's', 963 "Set the advertised protocols for the ALPN extension (comma-separated list)"}, 964 #ifndef OPENSSL_NO_ENGINE 965 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 966 #endif 967 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"}, 968 {"max_early_data", OPT_MAX_EARLY, 'n', 969 "The maximum number of bytes of early data as advertised in tickets"}, 970 {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n', 971 "The maximum number of bytes of early data (hard limit)"}, 972 {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"}, 973 {"num_tickets", OPT_S_NUM_TICKETS, 'n', 974 "The number of TLSv1.3 session tickets that a server will automatically issue" }, 975 {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"}, 976 {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"}, 977 {NULL, OPT_EOF, 0, NULL} 978 }; 979 980 #define IS_PROT_FLAG(o) \ 981 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \ 982 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2) 983 984 int s_server_main(int argc, char *argv[]) 985 { 986 ENGINE *engine = NULL; 987 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 988 SSL_CONF_CTX *cctx = NULL; 989 const SSL_METHOD *meth = TLS_server_method(); 990 SSL_EXCERT *exc = NULL; 991 STACK_OF(OPENSSL_STRING) *ssl_args = NULL; 992 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL; 993 STACK_OF(X509_CRL) *crls = NULL; 994 X509 *s_cert = NULL, *s_dcert = NULL; 995 X509_VERIFY_PARAM *vpm = NULL; 996 const char *CApath = NULL, *CAfile = NULL, *chCApath = NULL, *chCAfile = NULL; 997 char *dpassarg = NULL, *dpass = NULL; 998 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL; 999 char *crl_file = NULL, *prog; 1000 #ifdef AF_UNIX 1001 int unlink_unix_path = 0; 1002 #endif 1003 do_server_cb server_cb; 1004 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0; 1005 #ifndef OPENSSL_NO_DH 1006 char *dhfile = NULL; 1007 int no_dhe = 0; 1008 #endif 1009 int nocert = 0, ret = 1; 1010 int noCApath = 0, noCAfile = 0; 1011 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM; 1012 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM; 1013 int rev = 0, naccept = -1, sdebug = 0; 1014 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0; 1015 int state = 0, crl_format = FORMAT_PEM, crl_download = 0; 1016 char *host = NULL; 1017 char *port = BUF_strdup(PORT); 1018 unsigned char *context = NULL; 1019 OPTION_CHOICE o; 1020 EVP_PKEY *s_key2 = NULL; 1021 X509 *s_cert2 = NULL; 1022 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING }; 1023 const char *ssl_config = NULL; 1024 int read_buf_len = 0; 1025 #ifndef OPENSSL_NO_NEXTPROTONEG 1026 const char *next_proto_neg_in = NULL; 1027 tlsextnextprotoctx next_proto = { NULL, 0 }; 1028 #endif 1029 const char *alpn_in = NULL; 1030 tlsextalpnctx alpn_ctx = { NULL, 0 }; 1031 #ifndef OPENSSL_NO_PSK 1032 /* by default do not send a PSK identity hint */ 1033 char *psk_identity_hint = NULL; 1034 #endif 1035 char *p; 1036 #ifndef OPENSSL_NO_SRP 1037 char *srpuserseed = NULL; 1038 char *srp_verifier_file = NULL; 1039 #endif 1040 #ifndef OPENSSL_NO_SRTP 1041 char *srtp_profiles = NULL; 1042 #endif 1043 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0; 1044 int s_server_verify = SSL_VERIFY_NONE; 1045 int s_server_session_id_context = 1; /* anything will do */ 1046 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL; 1047 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL; 1048 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL; 1049 #ifndef OPENSSL_NO_OCSP 1050 int s_tlsextstatus = 0; 1051 #endif 1052 int no_resume_ephemeral = 0; 1053 unsigned int max_send_fragment = 0; 1054 unsigned int split_send_fragment = 0, max_pipelines = 0; 1055 const char *s_serverinfo_file = NULL; 1056 const char *keylog_file = NULL; 1057 int max_early_data = -1, recv_max_early_data = -1; 1058 char *psksessf = NULL; 1059 #ifndef OPENSSL_NO_SCTP 1060 int sctp_label_bug = 0; 1061 #endif 1062 1063 /* Init of few remaining global variables */ 1064 local_argc = argc; 1065 local_argv = argv; 1066 1067 ctx = ctx2 = NULL; 1068 s_nbio = s_nbio_test = 0; 1069 www = 0; 1070 bio_s_out = NULL; 1071 s_debug = 0; 1072 s_msg = 0; 1073 s_quiet = 0; 1074 s_brief = 0; 1075 async = 0; 1076 1077 cctx = SSL_CONF_CTX_new(); 1078 vpm = X509_VERIFY_PARAM_new(); 1079 if (cctx == NULL || vpm == NULL) 1080 goto end; 1081 SSL_CONF_CTX_set_flags(cctx, 1082 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE); 1083 1084 prog = opt_init(argc, argv, s_server_options); 1085 while ((o = opt_next()) != OPT_EOF) { 1086 if (IS_PROT_FLAG(o) && ++prot_opt > 1) { 1087 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); 1088 goto end; 1089 } 1090 if (IS_NO_PROT_FLAG(o)) 1091 no_prot_opt++; 1092 if (prot_opt == 1 && no_prot_opt) { 1093 BIO_printf(bio_err, 1094 "Cannot supply both a protocol flag and '-no_<prot>'\n"); 1095 goto end; 1096 } 1097 switch (o) { 1098 case OPT_EOF: 1099 case OPT_ERR: 1100 opthelp: 1101 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 1102 goto end; 1103 case OPT_HELP: 1104 opt_help(s_server_options); 1105 ret = 0; 1106 goto end; 1107 1108 case OPT_4: 1109 #ifdef AF_UNIX 1110 if (socket_family == AF_UNIX) { 1111 OPENSSL_free(host); host = NULL; 1112 OPENSSL_free(port); port = NULL; 1113 } 1114 #endif 1115 socket_family = AF_INET; 1116 break; 1117 case OPT_6: 1118 if (1) { 1119 #ifdef AF_INET6 1120 #ifdef AF_UNIX 1121 if (socket_family == AF_UNIX) { 1122 OPENSSL_free(host); host = NULL; 1123 OPENSSL_free(port); port = NULL; 1124 } 1125 #endif 1126 socket_family = AF_INET6; 1127 } else { 1128 #endif 1129 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog); 1130 goto end; 1131 } 1132 break; 1133 case OPT_PORT: 1134 #ifdef AF_UNIX 1135 if (socket_family == AF_UNIX) { 1136 socket_family = AF_UNSPEC; 1137 } 1138 #endif 1139 OPENSSL_free(port); port = NULL; 1140 OPENSSL_free(host); host = NULL; 1141 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) { 1142 BIO_printf(bio_err, 1143 "%s: -port argument malformed or ambiguous\n", 1144 port); 1145 goto end; 1146 } 1147 break; 1148 case OPT_ACCEPT: 1149 #ifdef AF_UNIX 1150 if (socket_family == AF_UNIX) { 1151 socket_family = AF_UNSPEC; 1152 } 1153 #endif 1154 OPENSSL_free(port); port = NULL; 1155 OPENSSL_free(host); host = NULL; 1156 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) { 1157 BIO_printf(bio_err, 1158 "%s: -accept argument malformed or ambiguous\n", 1159 port); 1160 goto end; 1161 } 1162 break; 1163 #ifdef AF_UNIX 1164 case OPT_UNIX: 1165 socket_family = AF_UNIX; 1166 OPENSSL_free(host); host = BUF_strdup(opt_arg()); 1167 OPENSSL_free(port); port = NULL; 1168 break; 1169 case OPT_UNLINK: 1170 unlink_unix_path = 1; 1171 break; 1172 #endif 1173 case OPT_NACCEPT: 1174 naccept = atol(opt_arg()); 1175 break; 1176 case OPT_VERIFY: 1177 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; 1178 verify_args.depth = atoi(opt_arg()); 1179 if (!s_quiet) 1180 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth); 1181 break; 1182 case OPT_UPPER_V_VERIFY: 1183 s_server_verify = 1184 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | 1185 SSL_VERIFY_CLIENT_ONCE; 1186 verify_args.depth = atoi(opt_arg()); 1187 if (!s_quiet) 1188 BIO_printf(bio_err, 1189 "verify depth is %d, must return a certificate\n", 1190 verify_args.depth); 1191 break; 1192 case OPT_CONTEXT: 1193 context = (unsigned char *)opt_arg(); 1194 break; 1195 case OPT_CERT: 1196 s_cert_file = opt_arg(); 1197 break; 1198 case OPT_NAMEOPT: 1199 if (!set_nameopt(opt_arg())) 1200 goto end; 1201 break; 1202 case OPT_CRL: 1203 crl_file = opt_arg(); 1204 break; 1205 case OPT_CRL_DOWNLOAD: 1206 crl_download = 1; 1207 break; 1208 case OPT_SERVERINFO: 1209 s_serverinfo_file = opt_arg(); 1210 break; 1211 case OPT_CERTFORM: 1212 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_cert_format)) 1213 goto opthelp; 1214 break; 1215 case OPT_KEY: 1216 s_key_file = opt_arg(); 1217 break; 1218 case OPT_KEYFORM: 1219 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format)) 1220 goto opthelp; 1221 break; 1222 case OPT_PASS: 1223 passarg = opt_arg(); 1224 break; 1225 case OPT_CERT_CHAIN: 1226 s_chain_file = opt_arg(); 1227 break; 1228 case OPT_DHPARAM: 1229 #ifndef OPENSSL_NO_DH 1230 dhfile = opt_arg(); 1231 #endif 1232 break; 1233 case OPT_DCERTFORM: 1234 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dcert_format)) 1235 goto opthelp; 1236 break; 1237 case OPT_DCERT: 1238 s_dcert_file = opt_arg(); 1239 break; 1240 case OPT_DKEYFORM: 1241 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dkey_format)) 1242 goto opthelp; 1243 break; 1244 case OPT_DPASS: 1245 dpassarg = opt_arg(); 1246 break; 1247 case OPT_DKEY: 1248 s_dkey_file = opt_arg(); 1249 break; 1250 case OPT_DCERT_CHAIN: 1251 s_dchain_file = opt_arg(); 1252 break; 1253 case OPT_NOCERT: 1254 nocert = 1; 1255 break; 1256 case OPT_CAPATH: 1257 CApath = opt_arg(); 1258 break; 1259 case OPT_NOCAPATH: 1260 noCApath = 1; 1261 break; 1262 case OPT_CHAINCAPATH: 1263 chCApath = opt_arg(); 1264 break; 1265 case OPT_VERIFYCAPATH: 1266 vfyCApath = opt_arg(); 1267 break; 1268 case OPT_NO_CACHE: 1269 no_cache = 1; 1270 break; 1271 case OPT_EXT_CACHE: 1272 ext_cache = 1; 1273 break; 1274 case OPT_CRLFORM: 1275 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) 1276 goto opthelp; 1277 break; 1278 case OPT_S_CASES: 1279 case OPT_S_NUM_TICKETS: 1280 case OPT_ANTI_REPLAY: 1281 case OPT_NO_ANTI_REPLAY: 1282 if (ssl_args == NULL) 1283 ssl_args = sk_OPENSSL_STRING_new_null(); 1284 if (ssl_args == NULL 1285 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag()) 1286 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) { 1287 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1288 goto end; 1289 } 1290 break; 1291 case OPT_V_CASES: 1292 if (!opt_verify(o, vpm)) 1293 goto end; 1294 vpmtouched++; 1295 break; 1296 case OPT_X_CASES: 1297 if (!args_excert(o, &exc)) 1298 goto end; 1299 break; 1300 case OPT_VERIFY_RET_ERROR: 1301 verify_args.return_error = 1; 1302 break; 1303 case OPT_VERIFY_QUIET: 1304 verify_args.quiet = 1; 1305 break; 1306 case OPT_BUILD_CHAIN: 1307 build_chain = 1; 1308 break; 1309 case OPT_CAFILE: 1310 CAfile = opt_arg(); 1311 break; 1312 case OPT_NOCAFILE: 1313 noCAfile = 1; 1314 break; 1315 case OPT_CHAINCAFILE: 1316 chCAfile = opt_arg(); 1317 break; 1318 case OPT_VERIFYCAFILE: 1319 vfyCAfile = opt_arg(); 1320 break; 1321 case OPT_NBIO: 1322 s_nbio = 1; 1323 break; 1324 case OPT_NBIO_TEST: 1325 s_nbio = s_nbio_test = 1; 1326 break; 1327 case OPT_IGN_EOF: 1328 s_ign_eof = 1; 1329 break; 1330 case OPT_NO_IGN_EOF: 1331 s_ign_eof = 0; 1332 break; 1333 case OPT_DEBUG: 1334 s_debug = 1; 1335 break; 1336 case OPT_TLSEXTDEBUG: 1337 s_tlsextdebug = 1; 1338 break; 1339 case OPT_STATUS: 1340 #ifndef OPENSSL_NO_OCSP 1341 s_tlsextstatus = 1; 1342 #endif 1343 break; 1344 case OPT_STATUS_VERBOSE: 1345 #ifndef OPENSSL_NO_OCSP 1346 s_tlsextstatus = tlscstatp.verbose = 1; 1347 #endif 1348 break; 1349 case OPT_STATUS_TIMEOUT: 1350 #ifndef OPENSSL_NO_OCSP 1351 s_tlsextstatus = 1; 1352 tlscstatp.timeout = atoi(opt_arg()); 1353 #endif 1354 break; 1355 case OPT_STATUS_URL: 1356 #ifndef OPENSSL_NO_OCSP 1357 s_tlsextstatus = 1; 1358 if (!OCSP_parse_url(opt_arg(), 1359 &tlscstatp.host, 1360 &tlscstatp.port, 1361 &tlscstatp.path, &tlscstatp.use_ssl)) { 1362 BIO_printf(bio_err, "Error parsing URL\n"); 1363 goto end; 1364 } 1365 #endif 1366 break; 1367 case OPT_STATUS_FILE: 1368 #ifndef OPENSSL_NO_OCSP 1369 s_tlsextstatus = 1; 1370 tlscstatp.respin = opt_arg(); 1371 #endif 1372 break; 1373 case OPT_MSG: 1374 s_msg = 1; 1375 break; 1376 case OPT_MSGFILE: 1377 bio_s_msg = BIO_new_file(opt_arg(), "w"); 1378 break; 1379 case OPT_TRACE: 1380 #ifndef OPENSSL_NO_SSL_TRACE 1381 s_msg = 2; 1382 #endif 1383 break; 1384 case OPT_SECURITY_DEBUG: 1385 sdebug = 1; 1386 break; 1387 case OPT_SECURITY_DEBUG_VERBOSE: 1388 sdebug = 2; 1389 break; 1390 case OPT_STATE: 1391 state = 1; 1392 break; 1393 case OPT_CRLF: 1394 s_crlf = 1; 1395 break; 1396 case OPT_QUIET: 1397 s_quiet = 1; 1398 break; 1399 case OPT_BRIEF: 1400 s_quiet = s_brief = verify_args.quiet = 1; 1401 break; 1402 case OPT_NO_DHE: 1403 #ifndef OPENSSL_NO_DH 1404 no_dhe = 1; 1405 #endif 1406 break; 1407 case OPT_NO_RESUME_EPHEMERAL: 1408 no_resume_ephemeral = 1; 1409 break; 1410 case OPT_PSK_IDENTITY: 1411 psk_identity = opt_arg(); 1412 break; 1413 case OPT_PSK_HINT: 1414 #ifndef OPENSSL_NO_PSK 1415 psk_identity_hint = opt_arg(); 1416 #endif 1417 break; 1418 case OPT_PSK: 1419 for (p = psk_key = opt_arg(); *p; p++) { 1420 if (isxdigit(_UC(*p))) 1421 continue; 1422 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key); 1423 goto end; 1424 } 1425 break; 1426 case OPT_PSK_SESS: 1427 psksessf = opt_arg(); 1428 break; 1429 case OPT_SRPVFILE: 1430 #ifndef OPENSSL_NO_SRP 1431 srp_verifier_file = opt_arg(); 1432 if (min_version < TLS1_VERSION) 1433 min_version = TLS1_VERSION; 1434 #endif 1435 break; 1436 case OPT_SRPUSERSEED: 1437 #ifndef OPENSSL_NO_SRP 1438 srpuserseed = opt_arg(); 1439 if (min_version < TLS1_VERSION) 1440 min_version = TLS1_VERSION; 1441 #endif 1442 break; 1443 case OPT_REV: 1444 rev = 1; 1445 break; 1446 case OPT_WWW: 1447 www = 1; 1448 break; 1449 case OPT_UPPER_WWW: 1450 www = 2; 1451 break; 1452 case OPT_HTTP: 1453 www = 3; 1454 break; 1455 case OPT_SSL_CONFIG: 1456 ssl_config = opt_arg(); 1457 break; 1458 case OPT_SSL3: 1459 min_version = SSL3_VERSION; 1460 max_version = SSL3_VERSION; 1461 break; 1462 case OPT_TLS1_3: 1463 min_version = TLS1_3_VERSION; 1464 max_version = TLS1_3_VERSION; 1465 break; 1466 case OPT_TLS1_2: 1467 min_version = TLS1_2_VERSION; 1468 max_version = TLS1_2_VERSION; 1469 break; 1470 case OPT_TLS1_1: 1471 min_version = TLS1_1_VERSION; 1472 max_version = TLS1_1_VERSION; 1473 break; 1474 case OPT_TLS1: 1475 min_version = TLS1_VERSION; 1476 max_version = TLS1_VERSION; 1477 break; 1478 case OPT_DTLS: 1479 #ifndef OPENSSL_NO_DTLS 1480 meth = DTLS_server_method(); 1481 socket_type = SOCK_DGRAM; 1482 #endif 1483 break; 1484 case OPT_DTLS1: 1485 #ifndef OPENSSL_NO_DTLS 1486 meth = DTLS_server_method(); 1487 min_version = DTLS1_VERSION; 1488 max_version = DTLS1_VERSION; 1489 socket_type = SOCK_DGRAM; 1490 #endif 1491 break; 1492 case OPT_DTLS1_2: 1493 #ifndef OPENSSL_NO_DTLS 1494 meth = DTLS_server_method(); 1495 min_version = DTLS1_2_VERSION; 1496 max_version = DTLS1_2_VERSION; 1497 socket_type = SOCK_DGRAM; 1498 #endif 1499 break; 1500 case OPT_SCTP: 1501 #ifndef OPENSSL_NO_SCTP 1502 protocol = IPPROTO_SCTP; 1503 #endif 1504 break; 1505 case OPT_SCTP_LABEL_BUG: 1506 #ifndef OPENSSL_NO_SCTP 1507 sctp_label_bug = 1; 1508 #endif 1509 break; 1510 case OPT_TIMEOUT: 1511 #ifndef OPENSSL_NO_DTLS 1512 enable_timeouts = 1; 1513 #endif 1514 break; 1515 case OPT_MTU: 1516 #ifndef OPENSSL_NO_DTLS 1517 socket_mtu = atol(opt_arg()); 1518 #endif 1519 break; 1520 case OPT_LISTEN: 1521 #ifndef OPENSSL_NO_DTLS 1522 dtlslisten = 1; 1523 #endif 1524 break; 1525 case OPT_STATELESS: 1526 stateless = 1; 1527 break; 1528 case OPT_ID_PREFIX: 1529 session_id_prefix = opt_arg(); 1530 break; 1531 case OPT_ENGINE: 1532 engine = setup_engine(opt_arg(), 1); 1533 break; 1534 case OPT_R_CASES: 1535 if (!opt_rand(o)) 1536 goto end; 1537 break; 1538 case OPT_SERVERNAME: 1539 tlsextcbp.servername = opt_arg(); 1540 break; 1541 case OPT_SERVERNAME_FATAL: 1542 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; 1543 break; 1544 case OPT_CERT2: 1545 s_cert_file2 = opt_arg(); 1546 break; 1547 case OPT_KEY2: 1548 s_key_file2 = opt_arg(); 1549 break; 1550 case OPT_NEXTPROTONEG: 1551 # ifndef OPENSSL_NO_NEXTPROTONEG 1552 next_proto_neg_in = opt_arg(); 1553 #endif 1554 break; 1555 case OPT_ALPN: 1556 alpn_in = opt_arg(); 1557 break; 1558 case OPT_SRTP_PROFILES: 1559 #ifndef OPENSSL_NO_SRTP 1560 srtp_profiles = opt_arg(); 1561 #endif 1562 break; 1563 case OPT_KEYMATEXPORT: 1564 keymatexportlabel = opt_arg(); 1565 break; 1566 case OPT_KEYMATEXPORTLEN: 1567 keymatexportlen = atoi(opt_arg()); 1568 break; 1569 case OPT_ASYNC: 1570 async = 1; 1571 break; 1572 case OPT_MAX_SEND_FRAG: 1573 max_send_fragment = atoi(opt_arg()); 1574 break; 1575 case OPT_SPLIT_SEND_FRAG: 1576 split_send_fragment = atoi(opt_arg()); 1577 break; 1578 case OPT_MAX_PIPELINES: 1579 max_pipelines = atoi(opt_arg()); 1580 break; 1581 case OPT_READ_BUF: 1582 read_buf_len = atoi(opt_arg()); 1583 break; 1584 case OPT_KEYLOG_FILE: 1585 keylog_file = opt_arg(); 1586 break; 1587 case OPT_MAX_EARLY: 1588 max_early_data = atoi(opt_arg()); 1589 if (max_early_data < 0) { 1590 BIO_printf(bio_err, "Invalid value for max_early_data\n"); 1591 goto end; 1592 } 1593 break; 1594 case OPT_RECV_MAX_EARLY: 1595 recv_max_early_data = atoi(opt_arg()); 1596 if (recv_max_early_data < 0) { 1597 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n"); 1598 goto end; 1599 } 1600 break; 1601 case OPT_EARLY_DATA: 1602 early_data = 1; 1603 if (max_early_data == -1) 1604 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; 1605 break; 1606 } 1607 } 1608 argc = opt_num_rest(); 1609 argv = opt_rest(); 1610 1611 #ifndef OPENSSL_NO_NEXTPROTONEG 1612 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) { 1613 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n"); 1614 goto opthelp; 1615 } 1616 #endif 1617 #ifndef OPENSSL_NO_DTLS 1618 if (www && socket_type == SOCK_DGRAM) { 1619 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n"); 1620 goto end; 1621 } 1622 1623 if (dtlslisten && socket_type != SOCK_DGRAM) { 1624 BIO_printf(bio_err, "Can only use -listen with DTLS\n"); 1625 goto end; 1626 } 1627 #endif 1628 1629 if (stateless && socket_type != SOCK_STREAM) { 1630 BIO_printf(bio_err, "Can only use --stateless with TLS\n"); 1631 goto end; 1632 } 1633 1634 #ifdef AF_UNIX 1635 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) { 1636 BIO_printf(bio_err, 1637 "Can't use unix sockets and datagrams together\n"); 1638 goto end; 1639 } 1640 #endif 1641 if (early_data && (www > 0 || rev)) { 1642 BIO_printf(bio_err, 1643 "Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n"); 1644 goto end; 1645 } 1646 1647 #ifndef OPENSSL_NO_SCTP 1648 if (protocol == IPPROTO_SCTP) { 1649 if (socket_type != SOCK_DGRAM) { 1650 BIO_printf(bio_err, "Can't use -sctp without DTLS\n"); 1651 goto end; 1652 } 1653 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */ 1654 socket_type = SOCK_STREAM; 1655 } 1656 #endif 1657 1658 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) { 1659 BIO_printf(bio_err, "Error getting password\n"); 1660 goto end; 1661 } 1662 1663 if (s_key_file == NULL) 1664 s_key_file = s_cert_file; 1665 1666 if (s_key_file2 == NULL) 1667 s_key_file2 = s_cert_file2; 1668 1669 if (!load_excert(&exc)) 1670 goto end; 1671 1672 if (nocert == 0) { 1673 s_key = load_key(s_key_file, s_key_format, 0, pass, engine, 1674 "server certificate private key file"); 1675 if (s_key == NULL) { 1676 ERR_print_errors(bio_err); 1677 goto end; 1678 } 1679 1680 s_cert = load_cert(s_cert_file, s_cert_format, 1681 "server certificate file"); 1682 1683 if (s_cert == NULL) { 1684 ERR_print_errors(bio_err); 1685 goto end; 1686 } 1687 if (s_chain_file != NULL) { 1688 if (!load_certs(s_chain_file, &s_chain, FORMAT_PEM, NULL, 1689 "server certificate chain")) 1690 goto end; 1691 } 1692 1693 if (tlsextcbp.servername != NULL) { 1694 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine, 1695 "second server certificate private key file"); 1696 if (s_key2 == NULL) { 1697 ERR_print_errors(bio_err); 1698 goto end; 1699 } 1700 1701 s_cert2 = load_cert(s_cert_file2, s_cert_format, 1702 "second server certificate file"); 1703 1704 if (s_cert2 == NULL) { 1705 ERR_print_errors(bio_err); 1706 goto end; 1707 } 1708 } 1709 } 1710 #if !defined(OPENSSL_NO_NEXTPROTONEG) 1711 if (next_proto_neg_in) { 1712 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in); 1713 if (next_proto.data == NULL) 1714 goto end; 1715 } 1716 #endif 1717 alpn_ctx.data = NULL; 1718 if (alpn_in) { 1719 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in); 1720 if (alpn_ctx.data == NULL) 1721 goto end; 1722 } 1723 1724 if (crl_file != NULL) { 1725 X509_CRL *crl; 1726 crl = load_crl(crl_file, crl_format); 1727 if (crl == NULL) { 1728 BIO_puts(bio_err, "Error loading CRL\n"); 1729 ERR_print_errors(bio_err); 1730 goto end; 1731 } 1732 crls = sk_X509_CRL_new_null(); 1733 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { 1734 BIO_puts(bio_err, "Error adding CRL\n"); 1735 ERR_print_errors(bio_err); 1736 X509_CRL_free(crl); 1737 goto end; 1738 } 1739 } 1740 1741 if (s_dcert_file != NULL) { 1742 1743 if (s_dkey_file == NULL) 1744 s_dkey_file = s_dcert_file; 1745 1746 s_dkey = load_key(s_dkey_file, s_dkey_format, 1747 0, dpass, engine, "second certificate private key file"); 1748 if (s_dkey == NULL) { 1749 ERR_print_errors(bio_err); 1750 goto end; 1751 } 1752 1753 s_dcert = load_cert(s_dcert_file, s_dcert_format, 1754 "second server certificate file"); 1755 1756 if (s_dcert == NULL) { 1757 ERR_print_errors(bio_err); 1758 goto end; 1759 } 1760 if (s_dchain_file != NULL) { 1761 if (!load_certs(s_dchain_file, &s_dchain, FORMAT_PEM, NULL, 1762 "second server certificate chain")) 1763 goto end; 1764 } 1765 1766 } 1767 1768 if (bio_s_out == NULL) { 1769 if (s_quiet && !s_debug) { 1770 bio_s_out = BIO_new(BIO_s_null()); 1771 if (s_msg && bio_s_msg == NULL) 1772 bio_s_msg = dup_bio_out(FORMAT_TEXT); 1773 } else { 1774 if (bio_s_out == NULL) 1775 bio_s_out = dup_bio_out(FORMAT_TEXT); 1776 } 1777 } 1778 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_EC) 1779 if (nocert) 1780 #endif 1781 { 1782 s_cert_file = NULL; 1783 s_key_file = NULL; 1784 s_dcert_file = NULL; 1785 s_dkey_file = NULL; 1786 s_cert_file2 = NULL; 1787 s_key_file2 = NULL; 1788 } 1789 1790 ctx = SSL_CTX_new(meth); 1791 if (ctx == NULL) { 1792 ERR_print_errors(bio_err); 1793 goto end; 1794 } 1795 1796 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 1797 1798 if (sdebug) 1799 ssl_ctx_security_debug(ctx, sdebug); 1800 1801 if (!config_ctx(cctx, ssl_args, ctx)) 1802 goto end; 1803 1804 if (ssl_config) { 1805 if (SSL_CTX_config(ctx, ssl_config) == 0) { 1806 BIO_printf(bio_err, "Error using configuration \"%s\"\n", 1807 ssl_config); 1808 ERR_print_errors(bio_err); 1809 goto end; 1810 } 1811 } 1812 1813 #ifndef OPENSSL_NO_SCTP 1814 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1) 1815 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG); 1816 #endif 1817 1818 if (min_version != 0 1819 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0) 1820 goto end; 1821 if (max_version != 0 1822 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0) 1823 goto end; 1824 1825 if (session_id_prefix) { 1826 if (strlen(session_id_prefix) >= 32) 1827 BIO_printf(bio_err, 1828 "warning: id_prefix is too long, only one new session will be possible\n"); 1829 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 1830 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1831 ERR_print_errors(bio_err); 1832 goto end; 1833 } 1834 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1835 } 1836 SSL_CTX_set_quiet_shutdown(ctx, 1); 1837 if (exc != NULL) 1838 ssl_ctx_set_excert(ctx, exc); 1839 1840 if (state) 1841 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1842 if (no_cache) 1843 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 1844 else if (ext_cache) 1845 init_session_cache_ctx(ctx); 1846 else 1847 SSL_CTX_sess_set_cache_size(ctx, 128); 1848 1849 if (async) { 1850 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); 1851 } 1852 1853 if (max_send_fragment > 0 1854 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) { 1855 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n", 1856 prog, max_send_fragment); 1857 goto end; 1858 } 1859 1860 if (split_send_fragment > 0 1861 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) { 1862 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n", 1863 prog, split_send_fragment); 1864 goto end; 1865 } 1866 if (max_pipelines > 0 1867 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) { 1868 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n", 1869 prog, max_pipelines); 1870 goto end; 1871 } 1872 1873 if (read_buf_len > 0) { 1874 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); 1875 } 1876 #ifndef OPENSSL_NO_SRTP 1877 if (srtp_profiles != NULL) { 1878 /* Returns 0 on success! */ 1879 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { 1880 BIO_printf(bio_err, "Error setting SRTP profile\n"); 1881 ERR_print_errors(bio_err); 1882 goto end; 1883 } 1884 } 1885 #endif 1886 1887 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) { 1888 ERR_print_errors(bio_err); 1889 goto end; 1890 } 1891 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { 1892 BIO_printf(bio_err, "Error setting verify params\n"); 1893 ERR_print_errors(bio_err); 1894 goto end; 1895 } 1896 1897 ssl_ctx_add_crls(ctx, crls, 0); 1898 1899 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, 1900 crls, crl_download)) { 1901 BIO_printf(bio_err, "Error loading store locations\n"); 1902 ERR_print_errors(bio_err); 1903 goto end; 1904 } 1905 1906 if (s_cert2) { 1907 ctx2 = SSL_CTX_new(meth); 1908 if (ctx2 == NULL) { 1909 ERR_print_errors(bio_err); 1910 goto end; 1911 } 1912 } 1913 1914 if (ctx2 != NULL) { 1915 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 1916 1917 if (sdebug) 1918 ssl_ctx_security_debug(ctx2, sdebug); 1919 1920 if (session_id_prefix) { 1921 if (strlen(session_id_prefix) >= 32) 1922 BIO_printf(bio_err, 1923 "warning: id_prefix is too long, only one new session will be possible\n"); 1924 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { 1925 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1926 ERR_print_errors(bio_err); 1927 goto end; 1928 } 1929 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1930 } 1931 SSL_CTX_set_quiet_shutdown(ctx2, 1); 1932 if (exc != NULL) 1933 ssl_ctx_set_excert(ctx2, exc); 1934 1935 if (state) 1936 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 1937 1938 if (no_cache) 1939 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 1940 else if (ext_cache) 1941 init_session_cache_ctx(ctx2); 1942 else 1943 SSL_CTX_sess_set_cache_size(ctx2, 128); 1944 1945 if (async) 1946 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC); 1947 1948 if (!ctx_set_verify_locations(ctx2, CAfile, CApath, noCAfile, 1949 noCApath)) { 1950 ERR_print_errors(bio_err); 1951 goto end; 1952 } 1953 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) { 1954 BIO_printf(bio_err, "Error setting verify params\n"); 1955 ERR_print_errors(bio_err); 1956 goto end; 1957 } 1958 1959 ssl_ctx_add_crls(ctx2, crls, 0); 1960 if (!config_ctx(cctx, ssl_args, ctx2)) 1961 goto end; 1962 } 1963 #ifndef OPENSSL_NO_NEXTPROTONEG 1964 if (next_proto.data) 1965 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, 1966 &next_proto); 1967 #endif 1968 if (alpn_ctx.data) 1969 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 1970 1971 #ifndef OPENSSL_NO_DH 1972 if (!no_dhe) { 1973 DH *dh = NULL; 1974 1975 if (dhfile != NULL) 1976 dh = load_dh_param(dhfile); 1977 else if (s_cert_file != NULL) 1978 dh = load_dh_param(s_cert_file); 1979 1980 if (dh != NULL) { 1981 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 1982 } else { 1983 BIO_printf(bio_s_out, "Using default temp DH parameters\n"); 1984 } 1985 (void)BIO_flush(bio_s_out); 1986 1987 if (dh == NULL) { 1988 SSL_CTX_set_dh_auto(ctx, 1); 1989 } else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { 1990 BIO_puts(bio_err, "Error setting temp DH parameters\n"); 1991 ERR_print_errors(bio_err); 1992 DH_free(dh); 1993 goto end; 1994 } 1995 1996 if (ctx2 != NULL) { 1997 if (!dhfile) { 1998 DH *dh2 = load_dh_param(s_cert_file2); 1999 if (dh2 != NULL) { 2000 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 2001 (void)BIO_flush(bio_s_out); 2002 2003 DH_free(dh); 2004 dh = dh2; 2005 } 2006 } 2007 if (dh == NULL) { 2008 SSL_CTX_set_dh_auto(ctx2, 1); 2009 } else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { 2010 BIO_puts(bio_err, "Error setting temp DH parameters\n"); 2011 ERR_print_errors(bio_err); 2012 DH_free(dh); 2013 goto end; 2014 } 2015 } 2016 DH_free(dh); 2017 } 2018 #endif 2019 2020 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain)) 2021 goto end; 2022 2023 if (s_serverinfo_file != NULL 2024 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) { 2025 ERR_print_errors(bio_err); 2026 goto end; 2027 } 2028 2029 if (ctx2 != NULL 2030 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain)) 2031 goto end; 2032 2033 if (s_dcert != NULL) { 2034 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain)) 2035 goto end; 2036 } 2037 2038 if (no_resume_ephemeral) { 2039 SSL_CTX_set_not_resumable_session_callback(ctx, 2040 not_resumable_sess_cb); 2041 2042 if (ctx2 != NULL) 2043 SSL_CTX_set_not_resumable_session_callback(ctx2, 2044 not_resumable_sess_cb); 2045 } 2046 #ifndef OPENSSL_NO_PSK 2047 if (psk_key != NULL) { 2048 if (s_debug) 2049 BIO_printf(bio_s_out, "PSK key given, setting server callback\n"); 2050 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb); 2051 } 2052 2053 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) { 2054 BIO_printf(bio_err, "error setting PSK identity hint to context\n"); 2055 ERR_print_errors(bio_err); 2056 goto end; 2057 } 2058 #endif 2059 if (psksessf != NULL) { 2060 BIO *stmp = BIO_new_file(psksessf, "r"); 2061 2062 if (stmp == NULL) { 2063 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf); 2064 ERR_print_errors(bio_err); 2065 goto end; 2066 } 2067 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 2068 BIO_free(stmp); 2069 if (psksess == NULL) { 2070 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf); 2071 ERR_print_errors(bio_err); 2072 goto end; 2073 } 2074 2075 } 2076 2077 if (psk_key != NULL || psksess != NULL) 2078 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb); 2079 2080 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); 2081 if (!SSL_CTX_set_session_id_context(ctx, 2082 (void *)&s_server_session_id_context, 2083 sizeof(s_server_session_id_context))) { 2084 BIO_printf(bio_err, "error setting session id context\n"); 2085 ERR_print_errors(bio_err); 2086 goto end; 2087 } 2088 2089 /* Set DTLS cookie generation and verification callbacks */ 2090 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 2091 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 2092 2093 /* Set TLS1.3 cookie generation and verification callbacks */ 2094 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback); 2095 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback); 2096 2097 if (ctx2 != NULL) { 2098 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); 2099 if (!SSL_CTX_set_session_id_context(ctx2, 2100 (void *)&s_server_session_id_context, 2101 sizeof(s_server_session_id_context))) { 2102 BIO_printf(bio_err, "error setting session id context\n"); 2103 ERR_print_errors(bio_err); 2104 goto end; 2105 } 2106 tlsextcbp.biodebug = bio_s_out; 2107 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 2108 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); 2109 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 2110 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 2111 } 2112 2113 #ifndef OPENSSL_NO_SRP 2114 if (srp_verifier_file != NULL) { 2115 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed); 2116 srp_callback_parm.user = NULL; 2117 srp_callback_parm.login = NULL; 2118 if ((ret = 2119 SRP_VBASE_init(srp_callback_parm.vb, 2120 srp_verifier_file)) != SRP_NO_ERROR) { 2121 BIO_printf(bio_err, 2122 "Cannot initialize SRP verifier file \"%s\":ret=%d\n", 2123 srp_verifier_file, ret); 2124 goto end; 2125 } 2126 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback); 2127 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm); 2128 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb); 2129 } else 2130 #endif 2131 if (CAfile != NULL) { 2132 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); 2133 2134 if (ctx2) 2135 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); 2136 } 2137 #ifndef OPENSSL_NO_OCSP 2138 if (s_tlsextstatus) { 2139 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 2140 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); 2141 if (ctx2) { 2142 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb); 2143 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp); 2144 } 2145 } 2146 #endif 2147 if (set_keylog_file(ctx, keylog_file)) 2148 goto end; 2149 2150 if (max_early_data >= 0) 2151 SSL_CTX_set_max_early_data(ctx, max_early_data); 2152 if (recv_max_early_data >= 0) 2153 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data); 2154 2155 if (rev) 2156 server_cb = rev_body; 2157 else if (www) 2158 server_cb = www_body; 2159 else 2160 server_cb = sv_body; 2161 #ifdef AF_UNIX 2162 if (socket_family == AF_UNIX 2163 && unlink_unix_path) 2164 unlink(host); 2165 #endif 2166 do_server(&accept_socket, host, port, socket_family, socket_type, protocol, 2167 server_cb, context, naccept, bio_s_out); 2168 print_stats(bio_s_out, ctx); 2169 ret = 0; 2170 end: 2171 SSL_CTX_free(ctx); 2172 SSL_SESSION_free(psksess); 2173 set_keylog_file(NULL, NULL); 2174 X509_free(s_cert); 2175 sk_X509_CRL_pop_free(crls, X509_CRL_free); 2176 X509_free(s_dcert); 2177 EVP_PKEY_free(s_key); 2178 EVP_PKEY_free(s_dkey); 2179 sk_X509_pop_free(s_chain, X509_free); 2180 sk_X509_pop_free(s_dchain, X509_free); 2181 OPENSSL_free(pass); 2182 OPENSSL_free(dpass); 2183 OPENSSL_free(host); 2184 OPENSSL_free(port); 2185 X509_VERIFY_PARAM_free(vpm); 2186 free_sessions(); 2187 OPENSSL_free(tlscstatp.host); 2188 OPENSSL_free(tlscstatp.port); 2189 OPENSSL_free(tlscstatp.path); 2190 SSL_CTX_free(ctx2); 2191 X509_free(s_cert2); 2192 EVP_PKEY_free(s_key2); 2193 #ifndef OPENSSL_NO_NEXTPROTONEG 2194 OPENSSL_free(next_proto.data); 2195 #endif 2196 OPENSSL_free(alpn_ctx.data); 2197 ssl_excert_free(exc); 2198 sk_OPENSSL_STRING_free(ssl_args); 2199 SSL_CONF_CTX_free(cctx); 2200 release_engine(engine); 2201 BIO_free(bio_s_out); 2202 bio_s_out = NULL; 2203 BIO_free(bio_s_msg); 2204 bio_s_msg = NULL; 2205 #ifdef CHARSET_EBCDIC 2206 BIO_meth_free(methods_ebcdic); 2207 #endif 2208 return ret; 2209 } 2210 2211 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx) 2212 { 2213 BIO_printf(bio, "%4ld items in the session cache\n", 2214 SSL_CTX_sess_number(ssl_ctx)); 2215 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 2216 SSL_CTX_sess_connect(ssl_ctx)); 2217 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 2218 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 2219 BIO_printf(bio, "%4ld client connects that finished\n", 2220 SSL_CTX_sess_connect_good(ssl_ctx)); 2221 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 2222 SSL_CTX_sess_accept(ssl_ctx)); 2223 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 2224 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 2225 BIO_printf(bio, "%4ld server accepts that finished\n", 2226 SSL_CTX_sess_accept_good(ssl_ctx)); 2227 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); 2228 BIO_printf(bio, "%4ld session cache misses\n", 2229 SSL_CTX_sess_misses(ssl_ctx)); 2230 BIO_printf(bio, "%4ld session cache timeouts\n", 2231 SSL_CTX_sess_timeouts(ssl_ctx)); 2232 BIO_printf(bio, "%4ld callback cache hits\n", 2233 SSL_CTX_sess_cb_hits(ssl_ctx)); 2234 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 2235 SSL_CTX_sess_cache_full(ssl_ctx), 2236 SSL_CTX_sess_get_cache_size(ssl_ctx)); 2237 } 2238 2239 static int sv_body(int s, int stype, int prot, unsigned char *context) 2240 { 2241 char *buf = NULL; 2242 fd_set readfds; 2243 int ret = 1, width; 2244 int k, i; 2245 unsigned long l; 2246 SSL *con = NULL; 2247 BIO *sbio; 2248 struct timeval timeout; 2249 #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)) 2250 struct timeval *timeoutp; 2251 #endif 2252 #ifndef OPENSSL_NO_DTLS 2253 # ifndef OPENSSL_NO_SCTP 2254 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP); 2255 # else 2256 int isdtls = (stype == SOCK_DGRAM); 2257 # endif 2258 #endif 2259 2260 buf = app_malloc(bufsize, "server buffer"); 2261 if (s_nbio) { 2262 if (!BIO_socket_nbio(s, 1)) 2263 ERR_print_errors(bio_err); 2264 else if (!s_quiet) 2265 BIO_printf(bio_err, "Turned on non blocking io\n"); 2266 } 2267 2268 con = SSL_new(ctx); 2269 if (con == NULL) { 2270 ret = -1; 2271 goto err; 2272 } 2273 2274 if (s_tlsextdebug) { 2275 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2276 SSL_set_tlsext_debug_arg(con, bio_s_out); 2277 } 2278 2279 if (context != NULL 2280 && !SSL_set_session_id_context(con, context, 2281 strlen((char *)context))) { 2282 BIO_printf(bio_err, "Error setting session id context\n"); 2283 ret = -1; 2284 goto err; 2285 } 2286 2287 if (!SSL_clear(con)) { 2288 BIO_printf(bio_err, "Error clearing SSL connection\n"); 2289 ret = -1; 2290 goto err; 2291 } 2292 #ifndef OPENSSL_NO_DTLS 2293 if (isdtls) { 2294 # ifndef OPENSSL_NO_SCTP 2295 if (prot == IPPROTO_SCTP) 2296 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE); 2297 else 2298 # endif 2299 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 2300 2301 if (enable_timeouts) { 2302 timeout.tv_sec = 0; 2303 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 2304 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 2305 2306 timeout.tv_sec = 0; 2307 timeout.tv_usec = DGRAM_SND_TIMEOUT; 2308 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 2309 } 2310 2311 if (socket_mtu) { 2312 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 2313 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 2314 DTLS_get_link_min_mtu(con)); 2315 ret = -1; 2316 BIO_free(sbio); 2317 goto err; 2318 } 2319 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 2320 if (!DTLS_set_link_mtu(con, socket_mtu)) { 2321 BIO_printf(bio_err, "Failed to set MTU\n"); 2322 ret = -1; 2323 BIO_free(sbio); 2324 goto err; 2325 } 2326 } else 2327 /* want to do MTU discovery */ 2328 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 2329 2330 # ifndef OPENSSL_NO_SCTP 2331 if (prot != IPPROTO_SCTP) 2332 # endif 2333 /* Turn on cookie exchange. Not necessary for SCTP */ 2334 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 2335 } else 2336 #endif 2337 sbio = BIO_new_socket(s, BIO_NOCLOSE); 2338 2339 if (sbio == NULL) { 2340 BIO_printf(bio_err, "Unable to create BIO\n"); 2341 ERR_print_errors(bio_err); 2342 goto err; 2343 } 2344 2345 if (s_nbio_test) { 2346 BIO *test; 2347 2348 test = BIO_new(BIO_f_nbio_test()); 2349 sbio = BIO_push(test, sbio); 2350 } 2351 2352 SSL_set_bio(con, sbio, sbio); 2353 SSL_set_accept_state(con); 2354 /* SSL_set_fd(con,s); */ 2355 2356 if (s_debug) { 2357 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 2358 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 2359 } 2360 if (s_msg) { 2361 #ifndef OPENSSL_NO_SSL_TRACE 2362 if (s_msg == 2) 2363 SSL_set_msg_callback(con, SSL_trace); 2364 else 2365 #endif 2366 SSL_set_msg_callback(con, msg_cb); 2367 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 2368 } 2369 2370 if (s_tlsextdebug) { 2371 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2372 SSL_set_tlsext_debug_arg(con, bio_s_out); 2373 } 2374 2375 if (early_data) { 2376 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR; 2377 size_t readbytes; 2378 2379 while (edret != SSL_READ_EARLY_DATA_FINISH) { 2380 for (;;) { 2381 edret = SSL_read_early_data(con, buf, bufsize, &readbytes); 2382 if (edret != SSL_READ_EARLY_DATA_ERROR) 2383 break; 2384 2385 switch (SSL_get_error(con, 0)) { 2386 case SSL_ERROR_WANT_WRITE: 2387 case SSL_ERROR_WANT_ASYNC: 2388 case SSL_ERROR_WANT_READ: 2389 /* Just keep trying - busy waiting */ 2390 continue; 2391 default: 2392 BIO_printf(bio_err, "Error reading early data\n"); 2393 ERR_print_errors(bio_err); 2394 goto err; 2395 } 2396 } 2397 if (readbytes > 0) { 2398 if (write_header) { 2399 BIO_printf(bio_s_out, "Early data received:\n"); 2400 write_header = 0; 2401 } 2402 raw_write_stdout(buf, (unsigned int)readbytes); 2403 (void)BIO_flush(bio_s_out); 2404 } 2405 } 2406 if (write_header) { 2407 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT) 2408 BIO_printf(bio_s_out, "No early data received\n"); 2409 else 2410 BIO_printf(bio_s_out, "Early data was rejected\n"); 2411 } else { 2412 BIO_printf(bio_s_out, "\nEnd of early data\n"); 2413 } 2414 if (SSL_is_init_finished(con)) 2415 print_connection_info(con); 2416 } 2417 2418 if (fileno_stdin() > s) 2419 width = fileno_stdin() + 1; 2420 else 2421 width = s + 1; 2422 for (;;) { 2423 int read_from_terminal; 2424 int read_from_sslcon; 2425 2426 read_from_terminal = 0; 2427 read_from_sslcon = SSL_has_pending(con) 2428 || (async && SSL_waiting_for_async(con)); 2429 2430 if (!read_from_sslcon) { 2431 FD_ZERO(&readfds); 2432 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 2433 openssl_fdset(fileno_stdin(), &readfds); 2434 #endif 2435 openssl_fdset(s, &readfds); 2436 /* 2437 * Note: under VMS with SOCKETSHR the second parameter is 2438 * currently of type (int *) whereas under other systems it is 2439 * (void *) if you don't have a cast it will choke the compiler: 2440 * if you do have a cast then you can either go for (int *) or 2441 * (void *). 2442 */ 2443 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2444 /* 2445 * Under DOS (non-djgpp) and Windows we can't select on stdin: 2446 * only on sockets. As a workaround we timeout the select every 2447 * second and check for any keypress. In a proper Windows 2448 * application we wouldn't do this because it is inefficient. 2449 */ 2450 timeout.tv_sec = 1; 2451 timeout.tv_usec = 0; 2452 i = select(width, (void *)&readfds, NULL, NULL, &timeout); 2453 if (has_stdin_waiting()) 2454 read_from_terminal = 1; 2455 if ((i < 0) || (!i && !read_from_terminal)) 2456 continue; 2457 #else 2458 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout)) 2459 timeoutp = &timeout; 2460 else 2461 timeoutp = NULL; 2462 2463 i = select(width, (void *)&readfds, NULL, NULL, timeoutp); 2464 2465 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0) 2466 BIO_printf(bio_err, "TIMEOUT occurred\n"); 2467 2468 if (i <= 0) 2469 continue; 2470 if (FD_ISSET(fileno_stdin(), &readfds)) 2471 read_from_terminal = 1; 2472 #endif 2473 if (FD_ISSET(s, &readfds)) 2474 read_from_sslcon = 1; 2475 } 2476 if (read_from_terminal) { 2477 if (s_crlf) { 2478 int j, lf_num; 2479 2480 i = raw_read_stdin(buf, bufsize / 2); 2481 lf_num = 0; 2482 /* both loops are skipped when i <= 0 */ 2483 for (j = 0; j < i; j++) 2484 if (buf[j] == '\n') 2485 lf_num++; 2486 for (j = i - 1; j >= 0; j--) { 2487 buf[j + lf_num] = buf[j]; 2488 if (buf[j] == '\n') { 2489 lf_num--; 2490 i++; 2491 buf[j + lf_num] = '\r'; 2492 } 2493 } 2494 assert(lf_num == 0); 2495 } else { 2496 i = raw_read_stdin(buf, bufsize); 2497 } 2498 2499 if (!s_quiet && !s_brief) { 2500 if ((i <= 0) || (buf[0] == 'Q')) { 2501 BIO_printf(bio_s_out, "DONE\n"); 2502 (void)BIO_flush(bio_s_out); 2503 BIO_closesocket(s); 2504 close_accept_socket(); 2505 ret = -11; 2506 goto err; 2507 } 2508 if ((i <= 0) || (buf[0] == 'q')) { 2509 BIO_printf(bio_s_out, "DONE\n"); 2510 (void)BIO_flush(bio_s_out); 2511 if (SSL_version(con) != DTLS1_VERSION) 2512 BIO_closesocket(s); 2513 /* 2514 * close_accept_socket(); ret= -11; 2515 */ 2516 goto err; 2517 } 2518 #ifndef OPENSSL_NO_HEARTBEATS 2519 if ((buf[0] == 'B') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2520 BIO_printf(bio_err, "HEARTBEATING\n"); 2521 SSL_heartbeat(con); 2522 i = 0; 2523 continue; 2524 } 2525 #endif 2526 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2527 SSL_renegotiate(con); 2528 i = SSL_do_handshake(con); 2529 printf("SSL_do_handshake -> %d\n", i); 2530 i = 0; /* 13; */ 2531 continue; 2532 } 2533 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2534 SSL_set_verify(con, 2535 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, 2536 NULL); 2537 SSL_renegotiate(con); 2538 i = SSL_do_handshake(con); 2539 printf("SSL_do_handshake -> %d\n", i); 2540 i = 0; /* 13; */ 2541 continue; 2542 } 2543 if ((buf[0] == 'K' || buf[0] == 'k') 2544 && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2545 SSL_key_update(con, buf[0] == 'K' ? 2546 SSL_KEY_UPDATE_REQUESTED 2547 : SSL_KEY_UPDATE_NOT_REQUESTED); 2548 i = SSL_do_handshake(con); 2549 printf("SSL_do_handshake -> %d\n", i); 2550 i = 0; 2551 continue; 2552 } 2553 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2554 SSL_set_verify(con, SSL_VERIFY_PEER, NULL); 2555 i = SSL_verify_client_post_handshake(con); 2556 if (i == 0) { 2557 printf("Failed to initiate request\n"); 2558 ERR_print_errors(bio_err); 2559 } else { 2560 i = SSL_do_handshake(con); 2561 printf("SSL_do_handshake -> %d\n", i); 2562 i = 0; 2563 } 2564 continue; 2565 } 2566 if (buf[0] == 'P') { 2567 static const char *str = "Lets print some clear text\n"; 2568 BIO_write(SSL_get_wbio(con), str, strlen(str)); 2569 } 2570 if (buf[0] == 'S') { 2571 print_stats(bio_s_out, SSL_get_SSL_CTX(con)); 2572 } 2573 } 2574 #ifdef CHARSET_EBCDIC 2575 ebcdic2ascii(buf, buf, i); 2576 #endif 2577 l = k = 0; 2578 for (;;) { 2579 /* should do a select for the write */ 2580 #ifdef RENEG 2581 static count = 0; 2582 if (++count == 100) { 2583 count = 0; 2584 SSL_renegotiate(con); 2585 } 2586 #endif 2587 k = SSL_write(con, &(buf[l]), (unsigned int)i); 2588 #ifndef OPENSSL_NO_SRP 2589 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) { 2590 BIO_printf(bio_s_out, "LOOKUP renego during write\n"); 2591 SRP_user_pwd_free(srp_callback_parm.user); 2592 srp_callback_parm.user = 2593 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 2594 srp_callback_parm.login); 2595 if (srp_callback_parm.user) 2596 BIO_printf(bio_s_out, "LOOKUP done %s\n", 2597 srp_callback_parm.user->info); 2598 else 2599 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 2600 k = SSL_write(con, &(buf[l]), (unsigned int)i); 2601 } 2602 #endif 2603 switch (SSL_get_error(con, k)) { 2604 case SSL_ERROR_NONE: 2605 break; 2606 case SSL_ERROR_WANT_ASYNC: 2607 BIO_printf(bio_s_out, "Write BLOCK (Async)\n"); 2608 (void)BIO_flush(bio_s_out); 2609 wait_for_async(con); 2610 break; 2611 case SSL_ERROR_WANT_WRITE: 2612 case SSL_ERROR_WANT_READ: 2613 case SSL_ERROR_WANT_X509_LOOKUP: 2614 BIO_printf(bio_s_out, "Write BLOCK\n"); 2615 (void)BIO_flush(bio_s_out); 2616 break; 2617 case SSL_ERROR_WANT_ASYNC_JOB: 2618 /* 2619 * This shouldn't ever happen in s_server. Treat as an error 2620 */ 2621 case SSL_ERROR_SYSCALL: 2622 case SSL_ERROR_SSL: 2623 BIO_printf(bio_s_out, "ERROR\n"); 2624 (void)BIO_flush(bio_s_out); 2625 ERR_print_errors(bio_err); 2626 ret = 1; 2627 goto err; 2628 /* break; */ 2629 case SSL_ERROR_ZERO_RETURN: 2630 BIO_printf(bio_s_out, "DONE\n"); 2631 (void)BIO_flush(bio_s_out); 2632 ret = 1; 2633 goto err; 2634 } 2635 if (k > 0) { 2636 l += k; 2637 i -= k; 2638 } 2639 if (i <= 0) 2640 break; 2641 } 2642 } 2643 if (read_from_sslcon) { 2644 /* 2645 * init_ssl_connection handles all async events itself so if we're 2646 * waiting for async then we shouldn't go back into 2647 * init_ssl_connection 2648 */ 2649 if ((!async || !SSL_waiting_for_async(con)) 2650 && !SSL_is_init_finished(con)) { 2651 i = init_ssl_connection(con); 2652 2653 if (i < 0) { 2654 ret = 0; 2655 goto err; 2656 } else if (i == 0) { 2657 ret = 1; 2658 goto err; 2659 } 2660 } else { 2661 again: 2662 i = SSL_read(con, (char *)buf, bufsize); 2663 #ifndef OPENSSL_NO_SRP 2664 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { 2665 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 2666 SRP_user_pwd_free(srp_callback_parm.user); 2667 srp_callback_parm.user = 2668 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 2669 srp_callback_parm.login); 2670 if (srp_callback_parm.user) 2671 BIO_printf(bio_s_out, "LOOKUP done %s\n", 2672 srp_callback_parm.user->info); 2673 else 2674 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 2675 i = SSL_read(con, (char *)buf, bufsize); 2676 } 2677 #endif 2678 switch (SSL_get_error(con, i)) { 2679 case SSL_ERROR_NONE: 2680 #ifdef CHARSET_EBCDIC 2681 ascii2ebcdic(buf, buf, i); 2682 #endif 2683 raw_write_stdout(buf, (unsigned int)i); 2684 (void)BIO_flush(bio_s_out); 2685 if (SSL_has_pending(con)) 2686 goto again; 2687 break; 2688 case SSL_ERROR_WANT_ASYNC: 2689 BIO_printf(bio_s_out, "Read BLOCK (Async)\n"); 2690 (void)BIO_flush(bio_s_out); 2691 wait_for_async(con); 2692 break; 2693 case SSL_ERROR_WANT_WRITE: 2694 case SSL_ERROR_WANT_READ: 2695 BIO_printf(bio_s_out, "Read BLOCK\n"); 2696 (void)BIO_flush(bio_s_out); 2697 break; 2698 case SSL_ERROR_WANT_ASYNC_JOB: 2699 /* 2700 * This shouldn't ever happen in s_server. Treat as an error 2701 */ 2702 case SSL_ERROR_SYSCALL: 2703 case SSL_ERROR_SSL: 2704 BIO_printf(bio_s_out, "ERROR\n"); 2705 (void)BIO_flush(bio_s_out); 2706 ERR_print_errors(bio_err); 2707 ret = 1; 2708 goto err; 2709 case SSL_ERROR_ZERO_RETURN: 2710 BIO_printf(bio_s_out, "DONE\n"); 2711 (void)BIO_flush(bio_s_out); 2712 ret = 1; 2713 goto err; 2714 } 2715 } 2716 } 2717 } 2718 err: 2719 if (con != NULL) { 2720 BIO_printf(bio_s_out, "shutting down SSL\n"); 2721 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 2722 SSL_free(con); 2723 } 2724 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 2725 OPENSSL_clear_free(buf, bufsize); 2726 return ret; 2727 } 2728 2729 static void close_accept_socket(void) 2730 { 2731 BIO_printf(bio_err, "shutdown accept socket\n"); 2732 if (accept_socket >= 0) { 2733 BIO_closesocket(accept_socket); 2734 } 2735 } 2736 2737 static int is_retryable(SSL *con, int i) 2738 { 2739 int err = SSL_get_error(con, i); 2740 2741 /* If it's not a fatal error, it must be retryable */ 2742 return (err != SSL_ERROR_SSL) 2743 && (err != SSL_ERROR_SYSCALL) 2744 && (err != SSL_ERROR_ZERO_RETURN); 2745 } 2746 2747 static int init_ssl_connection(SSL *con) 2748 { 2749 int i; 2750 long verify_err; 2751 int retry = 0; 2752 2753 if (dtlslisten || stateless) { 2754 BIO_ADDR *client = NULL; 2755 2756 if (dtlslisten) { 2757 if ((client = BIO_ADDR_new()) == NULL) { 2758 BIO_printf(bio_err, "ERROR - memory\n"); 2759 return 0; 2760 } 2761 i = DTLSv1_listen(con, client); 2762 } else { 2763 i = SSL_stateless(con); 2764 } 2765 if (i > 0) { 2766 BIO *wbio; 2767 int fd = -1; 2768 2769 if (dtlslisten) { 2770 wbio = SSL_get_wbio(con); 2771 if (wbio) { 2772 BIO_get_fd(wbio, &fd); 2773 } 2774 2775 if (!wbio || BIO_connect(fd, client, 0) == 0) { 2776 BIO_printf(bio_err, "ERROR - unable to connect\n"); 2777 BIO_ADDR_free(client); 2778 return 0; 2779 } 2780 2781 (void)BIO_ctrl_set_connected(wbio, client); 2782 BIO_ADDR_free(client); 2783 dtlslisten = 0; 2784 } else { 2785 stateless = 0; 2786 } 2787 i = SSL_accept(con); 2788 } else { 2789 BIO_ADDR_free(client); 2790 } 2791 } else { 2792 do { 2793 i = SSL_accept(con); 2794 2795 if (i <= 0) 2796 retry = is_retryable(con, i); 2797 #ifdef CERT_CB_TEST_RETRY 2798 { 2799 while (i <= 0 2800 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP 2801 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) { 2802 BIO_printf(bio_err, 2803 "LOOKUP from certificate callback during accept\n"); 2804 i = SSL_accept(con); 2805 if (i <= 0) 2806 retry = is_retryable(con, i); 2807 } 2808 } 2809 #endif 2810 2811 #ifndef OPENSSL_NO_SRP 2812 while (i <= 0 2813 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { 2814 BIO_printf(bio_s_out, "LOOKUP during accept %s\n", 2815 srp_callback_parm.login); 2816 SRP_user_pwd_free(srp_callback_parm.user); 2817 srp_callback_parm.user = 2818 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 2819 srp_callback_parm.login); 2820 if (srp_callback_parm.user) 2821 BIO_printf(bio_s_out, "LOOKUP done %s\n", 2822 srp_callback_parm.user->info); 2823 else 2824 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 2825 i = SSL_accept(con); 2826 if (i <= 0) 2827 retry = is_retryable(con, i); 2828 } 2829 #endif 2830 } while (i < 0 && SSL_waiting_for_async(con)); 2831 } 2832 2833 if (i <= 0) { 2834 if (((dtlslisten || stateless) && i == 0) 2835 || (!dtlslisten && !stateless && retry)) { 2836 BIO_printf(bio_s_out, "DELAY\n"); 2837 return 1; 2838 } 2839 2840 BIO_printf(bio_err, "ERROR\n"); 2841 2842 verify_err = SSL_get_verify_result(con); 2843 if (verify_err != X509_V_OK) { 2844 BIO_printf(bio_err, "verify error:%s\n", 2845 X509_verify_cert_error_string(verify_err)); 2846 } 2847 /* Always print any error messages */ 2848 ERR_print_errors(bio_err); 2849 return 0; 2850 } 2851 2852 print_connection_info(con); 2853 return 1; 2854 } 2855 2856 static void print_connection_info(SSL *con) 2857 { 2858 const char *str; 2859 X509 *peer; 2860 char buf[BUFSIZ]; 2861 #if !defined(OPENSSL_NO_NEXTPROTONEG) 2862 const unsigned char *next_proto_neg; 2863 unsigned next_proto_neg_len; 2864 #endif 2865 unsigned char *exportedkeymat; 2866 int i; 2867 2868 if (s_brief) 2869 print_ssl_summary(con); 2870 2871 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 2872 2873 peer = SSL_get_peer_certificate(con); 2874 if (peer != NULL) { 2875 BIO_printf(bio_s_out, "Client certificate\n"); 2876 PEM_write_bio_X509(bio_s_out, peer); 2877 dump_cert_text(bio_s_out, peer); 2878 X509_free(peer); 2879 peer = NULL; 2880 } 2881 2882 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL) 2883 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 2884 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 2885 ssl_print_sigalgs(bio_s_out, con); 2886 #ifndef OPENSSL_NO_EC 2887 ssl_print_point_formats(bio_s_out, con); 2888 ssl_print_groups(bio_s_out, con, 0); 2889 #endif 2890 print_ca_names(bio_s_out, con); 2891 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 2892 2893 #if !defined(OPENSSL_NO_NEXTPROTONEG) 2894 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len); 2895 if (next_proto_neg) { 2896 BIO_printf(bio_s_out, "NEXTPROTO is "); 2897 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len); 2898 BIO_printf(bio_s_out, "\n"); 2899 } 2900 #endif 2901 #ifndef OPENSSL_NO_SRTP 2902 { 2903 SRTP_PROTECTION_PROFILE *srtp_profile 2904 = SSL_get_selected_srtp_profile(con); 2905 2906 if (srtp_profile) 2907 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", 2908 srtp_profile->name); 2909 } 2910 #endif 2911 if (SSL_session_reused(con)) 2912 BIO_printf(bio_s_out, "Reused session-id\n"); 2913 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", 2914 SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); 2915 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION)) 2916 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n"); 2917 2918 if (keymatexportlabel != NULL) { 2919 BIO_printf(bio_s_out, "Keying material exporter:\n"); 2920 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); 2921 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen); 2922 exportedkeymat = app_malloc(keymatexportlen, "export key"); 2923 if (!SSL_export_keying_material(con, exportedkeymat, 2924 keymatexportlen, 2925 keymatexportlabel, 2926 strlen(keymatexportlabel), 2927 NULL, 0, 0)) { 2928 BIO_printf(bio_s_out, " Error\n"); 2929 } else { 2930 BIO_printf(bio_s_out, " Keying material: "); 2931 for (i = 0; i < keymatexportlen; i++) 2932 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]); 2933 BIO_printf(bio_s_out, "\n"); 2934 } 2935 OPENSSL_free(exportedkeymat); 2936 } 2937 #ifndef OPENSSL_NO_KTLS 2938 if (BIO_get_ktls_send(SSL_get_wbio(con))) 2939 BIO_printf(bio_err, "Using Kernel TLS for sending\n"); 2940 if (BIO_get_ktls_recv(SSL_get_rbio(con))) 2941 BIO_printf(bio_err, "Using Kernel TLS for receiving\n"); 2942 #endif 2943 2944 (void)BIO_flush(bio_s_out); 2945 } 2946 2947 #ifndef OPENSSL_NO_DH 2948 static DH *load_dh_param(const char *dhfile) 2949 { 2950 DH *ret = NULL; 2951 BIO *bio; 2952 2953 if ((bio = BIO_new_file(dhfile, "r")) == NULL) 2954 goto err; 2955 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); 2956 err: 2957 BIO_free(bio); 2958 return ret; 2959 } 2960 #endif 2961 2962 static int www_body(int s, int stype, int prot, unsigned char *context) 2963 { 2964 char *buf = NULL; 2965 int ret = 1; 2966 int i, j, k, dot; 2967 SSL *con; 2968 const SSL_CIPHER *c; 2969 BIO *io, *ssl_bio, *sbio; 2970 #ifdef RENEG 2971 int total_bytes = 0; 2972 #endif 2973 int width; 2974 fd_set readfds; 2975 2976 /* Set width for a select call if needed */ 2977 width = s + 1; 2978 2979 buf = app_malloc(bufsize, "server www buffer"); 2980 io = BIO_new(BIO_f_buffer()); 2981 ssl_bio = BIO_new(BIO_f_ssl()); 2982 if ((io == NULL) || (ssl_bio == NULL)) 2983 goto err; 2984 2985 if (s_nbio) { 2986 if (!BIO_socket_nbio(s, 1)) 2987 ERR_print_errors(bio_err); 2988 else if (!s_quiet) 2989 BIO_printf(bio_err, "Turned on non blocking io\n"); 2990 } 2991 2992 /* lets make the output buffer a reasonable size */ 2993 if (!BIO_set_write_buffer_size(io, bufsize)) 2994 goto err; 2995 2996 if ((con = SSL_new(ctx)) == NULL) 2997 goto err; 2998 2999 if (s_tlsextdebug) { 3000 SSL_set_tlsext_debug_callback(con, tlsext_cb); 3001 SSL_set_tlsext_debug_arg(con, bio_s_out); 3002 } 3003 3004 if (context != NULL 3005 && !SSL_set_session_id_context(con, context, 3006 strlen((char *)context))) { 3007 SSL_free(con); 3008 goto err; 3009 } 3010 3011 sbio = BIO_new_socket(s, BIO_NOCLOSE); 3012 if (s_nbio_test) { 3013 BIO *test; 3014 3015 test = BIO_new(BIO_f_nbio_test()); 3016 sbio = BIO_push(test, sbio); 3017 } 3018 SSL_set_bio(con, sbio, sbio); 3019 SSL_set_accept_state(con); 3020 3021 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ 3022 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 3023 BIO_push(io, ssl_bio); 3024 #ifdef CHARSET_EBCDIC 3025 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io); 3026 #endif 3027 3028 if (s_debug) { 3029 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 3030 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 3031 } 3032 if (s_msg) { 3033 #ifndef OPENSSL_NO_SSL_TRACE 3034 if (s_msg == 2) 3035 SSL_set_msg_callback(con, SSL_trace); 3036 else 3037 #endif 3038 SSL_set_msg_callback(con, msg_cb); 3039 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 3040 } 3041 3042 for (;;) { 3043 i = BIO_gets(io, buf, bufsize - 1); 3044 if (i < 0) { /* error */ 3045 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) { 3046 if (!s_quiet) 3047 ERR_print_errors(bio_err); 3048 goto err; 3049 } else { 3050 BIO_printf(bio_s_out, "read R BLOCK\n"); 3051 #ifndef OPENSSL_NO_SRP 3052 if (BIO_should_io_special(io) 3053 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3054 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 3055 SRP_user_pwd_free(srp_callback_parm.user); 3056 srp_callback_parm.user = 3057 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 3058 srp_callback_parm.login); 3059 if (srp_callback_parm.user) 3060 BIO_printf(bio_s_out, "LOOKUP done %s\n", 3061 srp_callback_parm.user->info); 3062 else 3063 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 3064 continue; 3065 } 3066 #endif 3067 #if !defined(OPENSSL_SYS_MSDOS) 3068 sleep(1); 3069 #endif 3070 continue; 3071 } 3072 } else if (i == 0) { /* end of input */ 3073 ret = 1; 3074 goto end; 3075 } 3076 3077 /* else we have data */ 3078 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || 3079 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { 3080 char *p; 3081 X509 *peer = NULL; 3082 STACK_OF(SSL_CIPHER) *sk; 3083 static const char *space = " "; 3084 3085 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) { 3086 if (strncmp("GET /renegcert", buf, 14) == 0) 3087 SSL_set_verify(con, 3088 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, 3089 NULL); 3090 i = SSL_renegotiate(con); 3091 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i); 3092 /* Send the HelloRequest */ 3093 i = SSL_do_handshake(con); 3094 if (i <= 0) { 3095 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", 3096 SSL_get_error(con, i)); 3097 ERR_print_errors(bio_err); 3098 goto err; 3099 } 3100 /* Wait for a ClientHello to come back */ 3101 FD_ZERO(&readfds); 3102 openssl_fdset(s, &readfds); 3103 i = select(width, (void *)&readfds, NULL, NULL, NULL); 3104 if (i <= 0 || !FD_ISSET(s, &readfds)) { 3105 BIO_printf(bio_s_out, 3106 "Error waiting for client response\n"); 3107 ERR_print_errors(bio_err); 3108 goto err; 3109 } 3110 /* 3111 * We're not actually expecting any data here and we ignore 3112 * any that is sent. This is just to force the handshake that 3113 * we're expecting to come from the client. If they haven't 3114 * sent one there's not much we can do. 3115 */ 3116 BIO_gets(io, buf, bufsize - 1); 3117 } 3118 3119 BIO_puts(io, 3120 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 3121 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 3122 BIO_puts(io, "<pre>\n"); 3123 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */ 3124 BIO_puts(io, "\n"); 3125 for (i = 0; i < local_argc; i++) { 3126 const char *myp; 3127 for (myp = local_argv[i]; *myp; myp++) 3128 switch (*myp) { 3129 case '<': 3130 BIO_puts(io, "<"); 3131 break; 3132 case '>': 3133 BIO_puts(io, ">"); 3134 break; 3135 case '&': 3136 BIO_puts(io, "&"); 3137 break; 3138 default: 3139 BIO_write(io, myp, 1); 3140 break; 3141 } 3142 BIO_write(io, " ", 1); 3143 } 3144 BIO_puts(io, "\n"); 3145 3146 BIO_printf(io, 3147 "Secure Renegotiation IS%s supported\n", 3148 SSL_get_secure_renegotiation_support(con) ? 3149 "" : " NOT"); 3150 3151 /* 3152 * The following is evil and should not really be done 3153 */ 3154 BIO_printf(io, "Ciphers supported in s_server binary\n"); 3155 sk = SSL_get_ciphers(con); 3156 j = sk_SSL_CIPHER_num(sk); 3157 for (i = 0; i < j; i++) { 3158 c = sk_SSL_CIPHER_value(sk, i); 3159 BIO_printf(io, "%-11s:%-25s ", 3160 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3161 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 3162 BIO_puts(io, "\n"); 3163 } 3164 BIO_puts(io, "\n"); 3165 p = SSL_get_shared_ciphers(con, buf, bufsize); 3166 if (p != NULL) { 3167 BIO_printf(io, 3168 "---\nCiphers common between both SSL end points:\n"); 3169 j = i = 0; 3170 while (*p) { 3171 if (*p == ':') { 3172 BIO_write(io, space, 26 - j); 3173 i++; 3174 j = 0; 3175 BIO_write(io, ((i % 3) ? " " : "\n"), 1); 3176 } else { 3177 BIO_write(io, p, 1); 3178 j++; 3179 } 3180 p++; 3181 } 3182 BIO_puts(io, "\n"); 3183 } 3184 ssl_print_sigalgs(io, con); 3185 #ifndef OPENSSL_NO_EC 3186 ssl_print_groups(io, con, 0); 3187 #endif 3188 print_ca_names(io, con); 3189 BIO_printf(io, (SSL_session_reused(con) 3190 ? "---\nReused, " : "---\nNew, ")); 3191 c = SSL_get_current_cipher(con); 3192 BIO_printf(io, "%s, Cipher is %s\n", 3193 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3194 SSL_SESSION_print(io, SSL_get_session(con)); 3195 BIO_printf(io, "---\n"); 3196 print_stats(io, SSL_get_SSL_CTX(con)); 3197 BIO_printf(io, "---\n"); 3198 peer = SSL_get_peer_certificate(con); 3199 if (peer != NULL) { 3200 BIO_printf(io, "Client certificate\n"); 3201 X509_print(io, peer); 3202 PEM_write_bio_X509(io, peer); 3203 X509_free(peer); 3204 peer = NULL; 3205 } else { 3206 BIO_puts(io, "no client certificate available\n"); 3207 } 3208 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n"); 3209 break; 3210 } else if ((www == 2 || www == 3) 3211 && (strncmp("GET /", buf, 5) == 0)) { 3212 BIO *file; 3213 char *p, *e; 3214 static const char *text = 3215 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 3216 3217 /* skip the '/' */ 3218 p = &(buf[5]); 3219 3220 dot = 1; 3221 for (e = p; *e != '\0'; e++) { 3222 if (e[0] == ' ') 3223 break; 3224 3225 if (e[0] == ':') { 3226 /* Windows drive. We treat this the same way as ".." */ 3227 dot = -1; 3228 break; 3229 } 3230 3231 switch (dot) { 3232 case 1: 3233 dot = (e[0] == '.') ? 2 : 0; 3234 break; 3235 case 2: 3236 dot = (e[0] == '.') ? 3 : 0; 3237 break; 3238 case 3: 3239 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0; 3240 break; 3241 } 3242 if (dot == 0) 3243 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0; 3244 } 3245 dot = (dot == 3) || (dot == -1); /* filename contains ".." 3246 * component */ 3247 3248 if (*e == '\0') { 3249 BIO_puts(io, text); 3250 BIO_printf(io, "'%s' is an invalid file name\r\n", p); 3251 break; 3252 } 3253 *e = '\0'; 3254 3255 if (dot) { 3256 BIO_puts(io, text); 3257 BIO_printf(io, "'%s' contains '..' or ':'\r\n", p); 3258 break; 3259 } 3260 3261 if (*p == '/' || *p == '\\') { 3262 BIO_puts(io, text); 3263 BIO_printf(io, "'%s' is an invalid path\r\n", p); 3264 break; 3265 } 3266 3267 /* if a directory, do the index thang */ 3268 if (app_isdir(p) > 0) { 3269 BIO_puts(io, text); 3270 BIO_printf(io, "'%s' is a directory\r\n", p); 3271 break; 3272 } 3273 3274 if ((file = BIO_new_file(p, "r")) == NULL) { 3275 BIO_puts(io, text); 3276 BIO_printf(io, "Error opening '%s'\r\n", p); 3277 ERR_print_errors(io); 3278 break; 3279 } 3280 3281 if (!s_quiet) 3282 BIO_printf(bio_err, "FILE:%s\n", p); 3283 3284 if (www == 2) { 3285 i = strlen(p); 3286 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 3287 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 3288 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 3289 BIO_puts(io, 3290 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 3291 else 3292 BIO_puts(io, 3293 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 3294 } 3295 /* send the file */ 3296 for (;;) { 3297 i = BIO_read(file, buf, bufsize); 3298 if (i <= 0) 3299 break; 3300 3301 #ifdef RENEG 3302 total_bytes += i; 3303 BIO_printf(bio_err, "%d\n", i); 3304 if (total_bytes > 3 * 1024) { 3305 total_bytes = 0; 3306 BIO_printf(bio_err, "RENEGOTIATE\n"); 3307 SSL_renegotiate(con); 3308 } 3309 #endif 3310 3311 for (j = 0; j < i;) { 3312 #ifdef RENEG 3313 static count = 0; 3314 if (++count == 13) { 3315 SSL_renegotiate(con); 3316 } 3317 #endif 3318 k = BIO_write(io, &(buf[j]), i - j); 3319 if (k <= 0) { 3320 if (!BIO_should_retry(io) 3321 && !SSL_waiting_for_async(con)) 3322 goto write_error; 3323 else { 3324 BIO_printf(bio_s_out, "rwrite W BLOCK\n"); 3325 } 3326 } else { 3327 j += k; 3328 } 3329 } 3330 } 3331 write_error: 3332 BIO_free(file); 3333 break; 3334 } 3335 } 3336 3337 for (;;) { 3338 i = (int)BIO_flush(io); 3339 if (i <= 0) { 3340 if (!BIO_should_retry(io)) 3341 break; 3342 } else 3343 break; 3344 } 3345 end: 3346 /* make sure we re-use sessions */ 3347 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 3348 3349 err: 3350 OPENSSL_free(buf); 3351 BIO_free_all(io); 3352 return ret; 3353 } 3354 3355 static int rev_body(int s, int stype, int prot, unsigned char *context) 3356 { 3357 char *buf = NULL; 3358 int i; 3359 int ret = 1; 3360 SSL *con; 3361 BIO *io, *ssl_bio, *sbio; 3362 3363 buf = app_malloc(bufsize, "server rev buffer"); 3364 io = BIO_new(BIO_f_buffer()); 3365 ssl_bio = BIO_new(BIO_f_ssl()); 3366 if ((io == NULL) || (ssl_bio == NULL)) 3367 goto err; 3368 3369 /* lets make the output buffer a reasonable size */ 3370 if (!BIO_set_write_buffer_size(io, bufsize)) 3371 goto err; 3372 3373 if ((con = SSL_new(ctx)) == NULL) 3374 goto err; 3375 3376 if (s_tlsextdebug) { 3377 SSL_set_tlsext_debug_callback(con, tlsext_cb); 3378 SSL_set_tlsext_debug_arg(con, bio_s_out); 3379 } 3380 if (context != NULL 3381 && !SSL_set_session_id_context(con, context, 3382 strlen((char *)context))) { 3383 SSL_free(con); 3384 ERR_print_errors(bio_err); 3385 goto err; 3386 } 3387 3388 sbio = BIO_new_socket(s, BIO_NOCLOSE); 3389 SSL_set_bio(con, sbio, sbio); 3390 SSL_set_accept_state(con); 3391 3392 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ 3393 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 3394 BIO_push(io, ssl_bio); 3395 #ifdef CHARSET_EBCDIC 3396 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io); 3397 #endif 3398 3399 if (s_debug) { 3400 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); 3401 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 3402 } 3403 if (s_msg) { 3404 #ifndef OPENSSL_NO_SSL_TRACE 3405 if (s_msg == 2) 3406 SSL_set_msg_callback(con, SSL_trace); 3407 else 3408 #endif 3409 SSL_set_msg_callback(con, msg_cb); 3410 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 3411 } 3412 3413 for (;;) { 3414 i = BIO_do_handshake(io); 3415 if (i > 0) 3416 break; 3417 if (!BIO_should_retry(io)) { 3418 BIO_puts(bio_err, "CONNECTION FAILURE\n"); 3419 ERR_print_errors(bio_err); 3420 goto end; 3421 } 3422 #ifndef OPENSSL_NO_SRP 3423 if (BIO_should_io_special(io) 3424 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3425 BIO_printf(bio_s_out, "LOOKUP renego during accept\n"); 3426 SRP_user_pwd_free(srp_callback_parm.user); 3427 srp_callback_parm.user = 3428 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 3429 srp_callback_parm.login); 3430 if (srp_callback_parm.user) 3431 BIO_printf(bio_s_out, "LOOKUP done %s\n", 3432 srp_callback_parm.user->info); 3433 else 3434 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 3435 continue; 3436 } 3437 #endif 3438 } 3439 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n"); 3440 print_ssl_summary(con); 3441 3442 for (;;) { 3443 i = BIO_gets(io, buf, bufsize - 1); 3444 if (i < 0) { /* error */ 3445 if (!BIO_should_retry(io)) { 3446 if (!s_quiet) 3447 ERR_print_errors(bio_err); 3448 goto err; 3449 } else { 3450 BIO_printf(bio_s_out, "read R BLOCK\n"); 3451 #ifndef OPENSSL_NO_SRP 3452 if (BIO_should_io_special(io) 3453 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3454 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 3455 SRP_user_pwd_free(srp_callback_parm.user); 3456 srp_callback_parm.user = 3457 SRP_VBASE_get1_by_user(srp_callback_parm.vb, 3458 srp_callback_parm.login); 3459 if (srp_callback_parm.user) 3460 BIO_printf(bio_s_out, "LOOKUP done %s\n", 3461 srp_callback_parm.user->info); 3462 else 3463 BIO_printf(bio_s_out, "LOOKUP not successful\n"); 3464 continue; 3465 } 3466 #endif 3467 #if !defined(OPENSSL_SYS_MSDOS) 3468 sleep(1); 3469 #endif 3470 continue; 3471 } 3472 } else if (i == 0) { /* end of input */ 3473 ret = 1; 3474 BIO_printf(bio_err, "CONNECTION CLOSED\n"); 3475 goto end; 3476 } else { 3477 char *p = buf + i - 1; 3478 while (i && (*p == '\n' || *p == '\r')) { 3479 p--; 3480 i--; 3481 } 3482 if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) { 3483 ret = 1; 3484 BIO_printf(bio_err, "CONNECTION CLOSED\n"); 3485 goto end; 3486 } 3487 BUF_reverse((unsigned char *)buf, NULL, i); 3488 buf[i] = '\n'; 3489 BIO_write(io, buf, i + 1); 3490 for (;;) { 3491 i = BIO_flush(io); 3492 if (i > 0) 3493 break; 3494 if (!BIO_should_retry(io)) 3495 goto end; 3496 } 3497 } 3498 } 3499 end: 3500 /* make sure we re-use sessions */ 3501 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); 3502 3503 err: 3504 3505 OPENSSL_free(buf); 3506 BIO_free_all(io); 3507 return ret; 3508 } 3509 3510 #define MAX_SESSION_ID_ATTEMPTS 10 3511 static int generate_session_id(SSL *ssl, unsigned char *id, 3512 unsigned int *id_len) 3513 { 3514 unsigned int count = 0; 3515 do { 3516 if (RAND_bytes(id, *id_len) <= 0) 3517 return 0; 3518 /* 3519 * Prefix the session_id with the required prefix. NB: If our prefix 3520 * is too long, clip it - but there will be worse effects anyway, eg. 3521 * the server could only possibly create 1 session ID (ie. the 3522 * prefix!) so all future session negotiations will fail due to 3523 * conflicts. 3524 */ 3525 memcpy(id, session_id_prefix, 3526 (strlen(session_id_prefix) < *id_len) ? 3527 strlen(session_id_prefix) : *id_len); 3528 } 3529 while (SSL_has_matching_session_id(ssl, id, *id_len) && 3530 (++count < MAX_SESSION_ID_ATTEMPTS)); 3531 if (count >= MAX_SESSION_ID_ATTEMPTS) 3532 return 0; 3533 return 1; 3534 } 3535 3536 /* 3537 * By default s_server uses an in-memory cache which caches SSL_SESSION 3538 * structures without any serialisation. This hides some bugs which only 3539 * become apparent in deployed servers. By implementing a basic external 3540 * session cache some issues can be debugged using s_server. 3541 */ 3542 3543 typedef struct simple_ssl_session_st { 3544 unsigned char *id; 3545 unsigned int idlen; 3546 unsigned char *der; 3547 int derlen; 3548 struct simple_ssl_session_st *next; 3549 } simple_ssl_session; 3550 3551 static simple_ssl_session *first = NULL; 3552 3553 static int add_session(SSL *ssl, SSL_SESSION *session) 3554 { 3555 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session"); 3556 unsigned char *p; 3557 3558 SSL_SESSION_get_id(session, &sess->idlen); 3559 sess->derlen = i2d_SSL_SESSION(session, NULL); 3560 if (sess->derlen < 0) { 3561 BIO_printf(bio_err, "Error encoding session\n"); 3562 OPENSSL_free(sess); 3563 return 0; 3564 } 3565 3566 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen); 3567 sess->der = app_malloc(sess->derlen, "get session buffer"); 3568 if (!sess->id) { 3569 BIO_printf(bio_err, "Out of memory adding to external cache\n"); 3570 OPENSSL_free(sess->id); 3571 OPENSSL_free(sess->der); 3572 OPENSSL_free(sess); 3573 return 0; 3574 } 3575 p = sess->der; 3576 3577 /* Assume it still works. */ 3578 if (i2d_SSL_SESSION(session, &p) != sess->derlen) { 3579 BIO_printf(bio_err, "Unexpected session encoding length\n"); 3580 OPENSSL_free(sess->id); 3581 OPENSSL_free(sess->der); 3582 OPENSSL_free(sess); 3583 return 0; 3584 } 3585 3586 sess->next = first; 3587 first = sess; 3588 BIO_printf(bio_err, "New session added to external cache\n"); 3589 return 0; 3590 } 3591 3592 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen, 3593 int *do_copy) 3594 { 3595 simple_ssl_session *sess; 3596 *do_copy = 0; 3597 for (sess = first; sess; sess = sess->next) { 3598 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) { 3599 const unsigned char *p = sess->der; 3600 BIO_printf(bio_err, "Lookup session: cache hit\n"); 3601 return d2i_SSL_SESSION(NULL, &p, sess->derlen); 3602 } 3603 } 3604 BIO_printf(bio_err, "Lookup session: cache miss\n"); 3605 return NULL; 3606 } 3607 3608 static void del_session(SSL_CTX *sctx, SSL_SESSION *session) 3609 { 3610 simple_ssl_session *sess, *prev = NULL; 3611 const unsigned char *id; 3612 unsigned int idlen; 3613 id = SSL_SESSION_get_id(session, &idlen); 3614 for (sess = first; sess; sess = sess->next) { 3615 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) { 3616 if (prev) 3617 prev->next = sess->next; 3618 else 3619 first = sess->next; 3620 OPENSSL_free(sess->id); 3621 OPENSSL_free(sess->der); 3622 OPENSSL_free(sess); 3623 return; 3624 } 3625 prev = sess; 3626 } 3627 } 3628 3629 static void init_session_cache_ctx(SSL_CTX *sctx) 3630 { 3631 SSL_CTX_set_session_cache_mode(sctx, 3632 SSL_SESS_CACHE_NO_INTERNAL | 3633 SSL_SESS_CACHE_SERVER); 3634 SSL_CTX_sess_set_new_cb(sctx, add_session); 3635 SSL_CTX_sess_set_get_cb(sctx, get_session); 3636 SSL_CTX_sess_set_remove_cb(sctx, del_session); 3637 } 3638 3639 static void free_sessions(void) 3640 { 3641 simple_ssl_session *sess, *tsess; 3642 for (sess = first; sess;) { 3643 OPENSSL_free(sess->id); 3644 OPENSSL_free(sess->der); 3645 tsess = sess; 3646 sess = sess->next; 3647 OPENSSL_free(tsess); 3648 } 3649 first = NULL; 3650 } 3651 3652 #endif /* OPENSSL_NO_SOCK */ 3653