1 /* 2 * Copyright 1995-2023 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 Apache License 2.0 (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 #include <openssl/decoder.h> 25 26 #ifndef OPENSSL_NO_SOCK 27 28 /* 29 * With IPv6, it looks like Digital has mixed up the proper order of 30 * recursive header file inclusion, resulting in the compiler complaining 31 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is 32 * needed to have fileno() declared correctly... So let's define u_int 33 */ 34 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) 35 # define __U_INT 36 typedef unsigned int u_int; 37 #endif 38 39 #include <openssl/bn.h> 40 #include "apps.h" 41 #include "progs.h" 42 #include <openssl/err.h> 43 #include <openssl/pem.h> 44 #include <openssl/x509.h> 45 #include <openssl/ssl.h> 46 #include <openssl/rand.h> 47 #include <openssl/ocsp.h> 48 #ifndef OPENSSL_NO_DH 49 # include <openssl/dh.h> 50 #endif 51 #include <openssl/rsa.h> 52 #include "s_apps.h" 53 #include "timeouts.h" 54 #ifdef CHARSET_EBCDIC 55 #include <openssl/ebcdic.h> 56 #endif 57 #include "internal/sockets.h" 58 59 static int not_resumable_sess_cb(SSL *s, int is_forward_secure); 60 static int sv_body(int s, int stype, int prot, unsigned char *context); 61 static int www_body(int s, int stype, int prot, unsigned char *context); 62 static int rev_body(int s, int stype, int prot, unsigned char *context); 63 static void close_accept_socket(void); 64 static int init_ssl_connection(SSL *s); 65 static void print_stats(BIO *bp, SSL_CTX *ctx); 66 static int generate_session_id(SSL *ssl, unsigned char *id, 67 unsigned int *id_len); 68 static void init_session_cache_ctx(SSL_CTX *sctx); 69 static void free_sessions(void); 70 static void print_connection_info(SSL *con); 71 72 static const int bufsize = 16 * 1024; 73 static int accept_socket = -1; 74 75 #define TEST_CERT "server.pem" 76 #define TEST_CERT2 "server2.pem" 77 78 static int s_nbio = 0; 79 static int s_nbio_test = 0; 80 static int s_crlf = 0; 81 static SSL_CTX *ctx = NULL; 82 static SSL_CTX *ctx2 = NULL; 83 static int www = 0; 84 85 static BIO *bio_s_out = NULL; 86 static BIO *bio_s_msg = NULL; 87 static int s_debug = 0; 88 static int s_tlsextdebug = 0; 89 static int s_msg = 0; 90 static int s_quiet = 0; 91 static int s_ign_eof = 0; 92 static int s_brief = 0; 93 94 static char *keymatexportlabel = NULL; 95 static int keymatexportlen = 20; 96 97 static int async = 0; 98 99 static int use_sendfile = 0; 100 101 static const char *session_id_prefix = NULL; 102 103 #ifndef OPENSSL_NO_DTLS 104 static int enable_timeouts = 0; 105 static long socket_mtu; 106 #endif 107 108 /* 109 * We define this but make it always be 0 in no-dtls builds to simplify the 110 * code. 111 */ 112 static int dtlslisten = 0; 113 static int stateless = 0; 114 115 static int early_data = 0; 116 static SSL_SESSION *psksess = NULL; 117 118 static char *psk_identity = "Client_identity"; 119 char *psk_key = NULL; /* by default PSK is not used */ 120 121 static char http_server_binmode = 0; /* for now: 0/1 = default/binary */ 122 123 #ifndef OPENSSL_NO_PSK 124 static unsigned int psk_server_cb(SSL *ssl, const char *identity, 125 unsigned char *psk, 126 unsigned int max_psk_len) 127 { 128 long key_len = 0; 129 unsigned char *key; 130 131 if (s_debug) 132 BIO_printf(bio_s_out, "psk_server_cb\n"); 133 134 if (!SSL_is_dtls(ssl) && SSL_version(ssl) >= TLS1_3_VERSION) { 135 /* 136 * This callback is designed for use in (D)TLSv1.2 (or below). It is 137 * possible to use a single callback for all protocol versions - but it 138 * is preferred to use a dedicated callback for TLSv1.3. For TLSv1.3 we 139 * have psk_find_session_cb. 140 */ 141 return 0; 142 } 143 144 if (identity == NULL) { 145 BIO_printf(bio_err, "Error: client did not send PSK identity\n"); 146 goto out_err; 147 } 148 if (s_debug) 149 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n", 150 (int)strlen(identity), identity); 151 152 /* here we could lookup the given identity e.g. from a database */ 153 if (strcmp(identity, psk_identity) != 0) { 154 BIO_printf(bio_s_out, "PSK warning: client identity not what we expected" 155 " (got '%s' expected '%s')\n", identity, psk_identity); 156 } else { 157 if (s_debug) 158 BIO_printf(bio_s_out, "PSK client identity found\n"); 159 } 160 161 /* convert the PSK key to binary */ 162 key = OPENSSL_hexstr2buf(psk_key, &key_len); 163 if (key == NULL) { 164 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 165 psk_key); 166 return 0; 167 } 168 if (key_len > (int)max_psk_len) { 169 BIO_printf(bio_err, 170 "psk buffer of callback is too small (%d) for key (%ld)\n", 171 max_psk_len, key_len); 172 OPENSSL_free(key); 173 return 0; 174 } 175 176 memcpy(psk, key, key_len); 177 OPENSSL_free(key); 178 179 if (s_debug) 180 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len); 181 return key_len; 182 out_err: 183 if (s_debug) 184 BIO_printf(bio_err, "Error in PSK server callback\n"); 185 (void)BIO_flush(bio_err); 186 (void)BIO_flush(bio_s_out); 187 return 0; 188 } 189 #endif 190 191 static int psk_find_session_cb(SSL *ssl, const unsigned char *identity, 192 size_t identity_len, SSL_SESSION **sess) 193 { 194 SSL_SESSION *tmpsess = NULL; 195 unsigned char *key; 196 long key_len; 197 const SSL_CIPHER *cipher = NULL; 198 199 if (strlen(psk_identity) != identity_len 200 || memcmp(psk_identity, identity, identity_len) != 0) { 201 *sess = NULL; 202 return 1; 203 } 204 205 if (psksess != NULL) { 206 SSL_SESSION_up_ref(psksess); 207 *sess = psksess; 208 return 1; 209 } 210 211 key = OPENSSL_hexstr2buf(psk_key, &key_len); 212 if (key == NULL) { 213 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 214 psk_key); 215 return 0; 216 } 217 218 /* We default to SHA256 */ 219 cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id); 220 if (cipher == NULL) { 221 BIO_printf(bio_err, "Error finding suitable ciphersuite\n"); 222 OPENSSL_free(key); 223 return 0; 224 } 225 226 tmpsess = SSL_SESSION_new(); 227 if (tmpsess == NULL 228 || !SSL_SESSION_set1_master_key(tmpsess, key, key_len) 229 || !SSL_SESSION_set_cipher(tmpsess, cipher) 230 || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) { 231 OPENSSL_free(key); 232 SSL_SESSION_free(tmpsess); 233 return 0; 234 } 235 OPENSSL_free(key); 236 *sess = tmpsess; 237 238 return 1; 239 } 240 241 #ifndef OPENSSL_NO_SRP 242 static srpsrvparm srp_callback_parm; 243 #endif 244 245 static int local_argc = 0; 246 static char **local_argv; 247 248 #ifdef CHARSET_EBCDIC 249 static int ebcdic_new(BIO *bi); 250 static int ebcdic_free(BIO *a); 251 static int ebcdic_read(BIO *b, char *out, int outl); 252 static int ebcdic_write(BIO *b, const char *in, int inl); 253 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr); 254 static int ebcdic_gets(BIO *bp, char *buf, int size); 255 static int ebcdic_puts(BIO *bp, const char *str); 256 257 # define BIO_TYPE_EBCDIC_FILTER (18|0x0200) 258 static BIO_METHOD *methods_ebcdic = NULL; 259 260 /* This struct is "unwarranted chumminess with the compiler." */ 261 typedef struct { 262 size_t alloced; 263 char buff[1]; 264 } EBCDIC_OUTBUFF; 265 266 static const BIO_METHOD *BIO_f_ebcdic_filter() 267 { 268 if (methods_ebcdic == NULL) { 269 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER, 270 "EBCDIC/ASCII filter"); 271 if (methods_ebcdic == NULL 272 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write) 273 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read) 274 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts) 275 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets) 276 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl) 277 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new) 278 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free)) 279 return NULL; 280 } 281 return methods_ebcdic; 282 } 283 284 static int ebcdic_new(BIO *bi) 285 { 286 EBCDIC_OUTBUFF *wbuf; 287 288 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf"); 289 wbuf->alloced = 1024; 290 wbuf->buff[0] = '\0'; 291 292 BIO_set_data(bi, wbuf); 293 BIO_set_init(bi, 1); 294 return 1; 295 } 296 297 static int ebcdic_free(BIO *a) 298 { 299 EBCDIC_OUTBUFF *wbuf; 300 301 if (a == NULL) 302 return 0; 303 wbuf = BIO_get_data(a); 304 OPENSSL_free(wbuf); 305 BIO_set_data(a, NULL); 306 BIO_set_init(a, 0); 307 308 return 1; 309 } 310 311 static int ebcdic_read(BIO *b, char *out, int outl) 312 { 313 int ret = 0; 314 BIO *next = BIO_next(b); 315 316 if (out == NULL || outl == 0) 317 return 0; 318 if (next == NULL) 319 return 0; 320 321 ret = BIO_read(next, out, outl); 322 if (ret > 0) 323 ascii2ebcdic(out, out, ret); 324 return ret; 325 } 326 327 static int ebcdic_write(BIO *b, const char *in, int inl) 328 { 329 EBCDIC_OUTBUFF *wbuf; 330 BIO *next = BIO_next(b); 331 int ret = 0; 332 int num; 333 334 if ((in == NULL) || (inl <= 0)) 335 return 0; 336 if (next == NULL) 337 return 0; 338 339 wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b); 340 341 if (inl > (num = wbuf->alloced)) { 342 num = num + num; /* double the size */ 343 if (num < inl) 344 num = inl; 345 OPENSSL_free(wbuf); 346 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf"); 347 348 wbuf->alloced = num; 349 wbuf->buff[0] = '\0'; 350 351 BIO_set_data(b, wbuf); 352 } 353 354 ebcdic2ascii(wbuf->buff, in, inl); 355 356 ret = BIO_write(next, wbuf->buff, inl); 357 358 return ret; 359 } 360 361 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr) 362 { 363 long ret; 364 BIO *next = BIO_next(b); 365 366 if (next == NULL) 367 return 0; 368 switch (cmd) { 369 case BIO_CTRL_DUP: 370 ret = 0L; 371 break; 372 default: 373 ret = BIO_ctrl(next, cmd, num, ptr); 374 break; 375 } 376 return ret; 377 } 378 379 static int ebcdic_gets(BIO *bp, char *buf, int size) 380 { 381 int i, ret = 0; 382 BIO *next = BIO_next(bp); 383 384 if (next == NULL) 385 return 0; 386 /* return(BIO_gets(bp->next_bio,buf,size));*/ 387 for (i = 0; i < size - 1; ++i) { 388 ret = ebcdic_read(bp, &buf[i], 1); 389 if (ret <= 0) 390 break; 391 else if (buf[i] == '\n') { 392 ++i; 393 break; 394 } 395 } 396 if (i < size) 397 buf[i] = '\0'; 398 return (ret < 0 && i == 0) ? ret : i; 399 } 400 401 static int ebcdic_puts(BIO *bp, const char *str) 402 { 403 if (BIO_next(bp) == NULL) 404 return 0; 405 return ebcdic_write(bp, str, strlen(str)); 406 } 407 #endif 408 409 /* This is a context that we pass to callbacks */ 410 typedef struct tlsextctx_st { 411 char *servername; 412 BIO *biodebug; 413 int extension_error; 414 } tlsextctx; 415 416 static int ssl_servername_cb(SSL *s, int *ad, void *arg) 417 { 418 tlsextctx *p = (tlsextctx *) arg; 419 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 420 421 if (servername != NULL && p->biodebug != NULL) { 422 const char *cp = servername; 423 unsigned char uc; 424 425 BIO_printf(p->biodebug, "Hostname in TLS extension: \""); 426 while ((uc = *cp++) != 0) 427 BIO_printf(p->biodebug, 428 (((uc) & ~127) == 0) && isprint(uc) ? "%c" : "\\x%02x", uc); 429 BIO_printf(p->biodebug, "\"\n"); 430 } 431 432 if (p->servername == NULL) 433 return SSL_TLSEXT_ERR_NOACK; 434 435 if (servername != NULL) { 436 if (OPENSSL_strcasecmp(servername, p->servername)) 437 return p->extension_error; 438 if (ctx2 != NULL) { 439 BIO_printf(p->biodebug, "Switching server context.\n"); 440 SSL_set_SSL_CTX(s, ctx2); 441 } 442 } 443 return SSL_TLSEXT_ERR_OK; 444 } 445 446 /* Structure passed to cert status callback */ 447 typedef struct tlsextstatusctx_st { 448 int timeout; 449 /* File to load OCSP Response from (or NULL if no file) */ 450 char *respin; 451 /* Default responder to use */ 452 char *host, *path, *port; 453 char *proxy, *no_proxy; 454 int use_ssl; 455 int verbose; 456 } tlsextstatusctx; 457 458 static tlsextstatusctx tlscstatp = { -1 }; 459 460 #ifndef OPENSSL_NO_OCSP 461 462 /* 463 * Helper function to get an OCSP_RESPONSE from a responder. This is a 464 * simplified version. It examines certificates each time and makes one OCSP 465 * responder query for each request. A full version would store details such as 466 * the OCSP certificate IDs and minimise the number of OCSP responses by caching 467 * them until they were considered "expired". 468 */ 469 static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx, 470 OCSP_RESPONSE **resp) 471 { 472 char *host = NULL, *port = NULL, *path = NULL; 473 char *proxy = NULL, *no_proxy = NULL; 474 int use_ssl; 475 STACK_OF(OPENSSL_STRING) *aia = NULL; 476 X509 *x = NULL; 477 X509_STORE_CTX *inctx = NULL; 478 X509_OBJECT *obj; 479 OCSP_REQUEST *req = NULL; 480 OCSP_CERTID *id = NULL; 481 STACK_OF(X509_EXTENSION) *exts; 482 int ret = SSL_TLSEXT_ERR_NOACK; 483 int i; 484 485 /* Build up OCSP query from server certificate */ 486 x = SSL_get_certificate(s); 487 aia = X509_get1_ocsp(x); 488 if (aia != NULL) { 489 if (!OSSL_HTTP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &use_ssl, 490 NULL, &host, &port, NULL, &path, NULL, NULL)) { 491 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n"); 492 goto err; 493 } 494 if (srctx->verbose) 495 BIO_printf(bio_err, "cert_status: AIA URL: %s\n", 496 sk_OPENSSL_STRING_value(aia, 0)); 497 } else { 498 if (srctx->host == NULL) { 499 BIO_puts(bio_err, 500 "cert_status: no AIA and no default responder URL\n"); 501 goto done; 502 } 503 host = srctx->host; 504 path = srctx->path; 505 port = srctx->port; 506 use_ssl = srctx->use_ssl; 507 } 508 proxy = srctx->proxy; 509 no_proxy = srctx->no_proxy; 510 511 inctx = X509_STORE_CTX_new(); 512 if (inctx == NULL) 513 goto err; 514 if (!X509_STORE_CTX_init(inctx, 515 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), 516 NULL, NULL)) 517 goto err; 518 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509, 519 X509_get_issuer_name(x)); 520 if (obj == NULL) { 521 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n"); 522 goto done; 523 } 524 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj)); 525 X509_OBJECT_free(obj); 526 if (id == NULL) 527 goto err; 528 req = OCSP_REQUEST_new(); 529 if (req == NULL) 530 goto err; 531 if (!OCSP_request_add0_id(req, id)) 532 goto err; 533 id = NULL; 534 /* Add any extensions to the request */ 535 SSL_get_tlsext_status_exts(s, &exts); 536 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { 537 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); 538 if (!OCSP_REQUEST_add_ext(req, ext, -1)) 539 goto err; 540 } 541 *resp = process_responder(req, host, port, path, proxy, no_proxy, 542 use_ssl, NULL /* headers */, srctx->timeout); 543 if (*resp == NULL) { 544 BIO_puts(bio_err, "cert_status: error querying responder\n"); 545 goto done; 546 } 547 548 ret = SSL_TLSEXT_ERR_OK; 549 goto done; 550 551 err: 552 ret = SSL_TLSEXT_ERR_ALERT_FATAL; 553 done: 554 /* 555 * If we parsed aia we need to free; otherwise they were copied and we 556 * don't 557 */ 558 if (aia != NULL) { 559 OPENSSL_free(host); 560 OPENSSL_free(path); 561 OPENSSL_free(port); 562 X509_email_free(aia); 563 } 564 OCSP_CERTID_free(id); 565 OCSP_REQUEST_free(req); 566 X509_STORE_CTX_free(inctx); 567 return ret; 568 } 569 570 /* 571 * Certificate Status callback. This is called when a client includes a 572 * certificate status request extension. The response is either obtained from a 573 * file, or from an OCSP responder. 574 */ 575 static int cert_status_cb(SSL *s, void *arg) 576 { 577 tlsextstatusctx *srctx = arg; 578 OCSP_RESPONSE *resp = NULL; 579 unsigned char *rspder = NULL; 580 int rspderlen; 581 int ret = SSL_TLSEXT_ERR_ALERT_FATAL; 582 583 if (srctx->verbose) 584 BIO_puts(bio_err, "cert_status: callback called\n"); 585 586 if (srctx->respin != NULL) { 587 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1); 588 if (derbio == NULL) { 589 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n"); 590 goto err; 591 } 592 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); 593 BIO_free(derbio); 594 if (resp == NULL) { 595 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n"); 596 goto err; 597 } 598 } else { 599 ret = get_ocsp_resp_from_responder(s, srctx, &resp); 600 if (ret != SSL_TLSEXT_ERR_OK) 601 goto err; 602 } 603 604 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); 605 if (rspderlen <= 0) 606 goto err; 607 608 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); 609 if (srctx->verbose) { 610 BIO_puts(bio_err, "cert_status: ocsp response sent:\n"); 611 OCSP_RESPONSE_print(bio_err, resp, 2); 612 } 613 614 ret = SSL_TLSEXT_ERR_OK; 615 616 err: 617 if (ret != SSL_TLSEXT_ERR_OK) 618 ERR_print_errors(bio_err); 619 620 OCSP_RESPONSE_free(resp); 621 622 return ret; 623 } 624 #endif 625 626 #ifndef OPENSSL_NO_NEXTPROTONEG 627 /* This is the context that we pass to next_proto_cb */ 628 typedef struct tlsextnextprotoctx_st { 629 unsigned char *data; 630 size_t len; 631 } tlsextnextprotoctx; 632 633 static int next_proto_cb(SSL *s, const unsigned char **data, 634 unsigned int *len, void *arg) 635 { 636 tlsextnextprotoctx *next_proto = arg; 637 638 *data = next_proto->data; 639 *len = next_proto->len; 640 641 return SSL_TLSEXT_ERR_OK; 642 } 643 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 644 645 /* This the context that we pass to alpn_cb */ 646 typedef struct tlsextalpnctx_st { 647 unsigned char *data; 648 size_t len; 649 } tlsextalpnctx; 650 651 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 652 const unsigned char *in, unsigned int inlen, void *arg) 653 { 654 tlsextalpnctx *alpn_ctx = arg; 655 656 if (!s_quiet) { 657 /* We can assume that |in| is syntactically valid. */ 658 unsigned int i; 659 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: "); 660 for (i = 0; i < inlen;) { 661 if (i) 662 BIO_write(bio_s_out, ", ", 2); 663 BIO_write(bio_s_out, &in[i + 1], in[i]); 664 i += in[i] + 1; 665 } 666 BIO_write(bio_s_out, "\n", 1); 667 } 668 669 if (SSL_select_next_proto 670 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in, 671 inlen) != OPENSSL_NPN_NEGOTIATED) { 672 return SSL_TLSEXT_ERR_ALERT_FATAL; 673 } 674 675 if (!s_quiet) { 676 BIO_printf(bio_s_out, "ALPN protocols selected: "); 677 BIO_write(bio_s_out, *out, *outlen); 678 BIO_write(bio_s_out, "\n", 1); 679 } 680 681 return SSL_TLSEXT_ERR_OK; 682 } 683 684 static int not_resumable_sess_cb(SSL *s, int is_forward_secure) 685 { 686 /* disable resumption for sessions with forward secure ciphers */ 687 return is_forward_secure; 688 } 689 690 typedef enum OPTION_choice { 691 OPT_COMMON, 692 OPT_ENGINE, 693 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT, 694 OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL, 695 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM, 696 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT, 697 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT, 698 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE, 699 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, 700 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, 701 OPT_VERIFYCAFILE, 702 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE, 703 OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF, 704 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE, 705 OPT_STATUS_TIMEOUT, OPT_PROXY, OPT_NO_PROXY, OPT_STATUS_URL, 706 OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE, 707 OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE, 708 OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE, 709 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK, 710 OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW, 711 OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG, 712 OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF, 713 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, 714 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS, 715 OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL, 716 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, OPT_SENDFILE, 717 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, 718 OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA, 719 OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, OPT_SCTP_LABEL_BUG, 720 OPT_HTTP_SERVER_BINMODE, OPT_NOCANAMES, OPT_IGNORE_UNEXPECTED_EOF, 721 OPT_R_ENUM, 722 OPT_S_ENUM, 723 OPT_V_ENUM, 724 OPT_X_ENUM, 725 OPT_PROV_ENUM 726 } OPTION_CHOICE; 727 728 const OPTIONS s_server_options[] = { 729 OPT_SECTION("General"), 730 {"help", OPT_HELP, '-', "Display this summary"}, 731 {"ssl_config", OPT_SSL_CONFIG, 's', 732 "Configure SSL_CTX using the given configuration value"}, 733 #ifndef OPENSSL_NO_SSL_TRACE 734 {"trace", OPT_TRACE, '-', "trace protocol messages"}, 735 #endif 736 #ifndef OPENSSL_NO_ENGINE 737 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 738 #endif 739 740 OPT_SECTION("Network"), 741 {"port", OPT_PORT, 'p', 742 "TCP/IP port to listen on for connections (default is " PORT ")"}, 743 {"accept", OPT_ACCEPT, 's', 744 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"}, 745 #ifdef AF_UNIX 746 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"}, 747 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"}, 748 #endif 749 {"4", OPT_4, '-', "Use IPv4 only"}, 750 {"6", OPT_6, '-', "Use IPv6 only"}, 751 752 OPT_SECTION("Identity"), 753 {"context", OPT_CONTEXT, 's', "Set session ID context"}, 754 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"}, 755 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, 756 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"}, 757 {"no-CAfile", OPT_NOCAFILE, '-', 758 "Do not load the default certificates file"}, 759 {"no-CApath", OPT_NOCAPATH, '-', 760 "Do not load certificates from the default certificates directory"}, 761 {"no-CAstore", OPT_NOCASTORE, '-', 762 "Do not load certificates from the default certificates store URI"}, 763 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"}, 764 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"}, 765 {"Verify", OPT_UPPER_V_VERIFY, 'n', 766 "Turn on peer certificate verification, must have a cert"}, 767 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"}, 768 {"cert", OPT_CERT, '<', "Server certificate file to use; default " TEST_CERT}, 769 {"cert2", OPT_CERT2, '<', 770 "Certificate file to use for servername; default " TEST_CERT2}, 771 {"certform", OPT_CERTFORM, 'F', 772 "Server certificate file format (PEM/DER/P12); has no effect"}, 773 {"cert_chain", OPT_CERT_CHAIN, '<', 774 "Server certificate chain file in PEM format"}, 775 {"build_chain", OPT_BUILD_CHAIN, '-', "Build server certificate chain"}, 776 {"serverinfo", OPT_SERVERINFO, 's', 777 "PEM serverinfo file for certificate"}, 778 {"key", OPT_KEY, 's', 779 "Private key file to use; default is -cert file or else" TEST_CERT}, 780 {"key2", OPT_KEY2, '<', 781 "-Private Key file to use for servername if not in -cert2"}, 782 {"keyform", OPT_KEYFORM, 'f', "Key format (ENGINE, other values ignored)"}, 783 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"}, 784 {"dcert", OPT_DCERT, '<', 785 "Second server certificate file to use (usually for DSA)"}, 786 {"dcertform", OPT_DCERTFORM, 'F', 787 "Second server certificate file format (PEM/DER/P12); has no effect"}, 788 {"dcert_chain", OPT_DCERT_CHAIN, '<', 789 "second server certificate chain file in PEM format"}, 790 {"dkey", OPT_DKEY, '<', 791 "Second private key file to use (usually for DSA)"}, 792 {"dkeyform", OPT_DKEYFORM, 'f', 793 "Second key file format (ENGINE, other values ignored)"}, 794 {"dpass", OPT_DPASS, 's', 795 "Second private key and cert file pass phrase source"}, 796 {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"}, 797 {"servername", OPT_SERVERNAME, 's', 798 "Servername for HostName TLS extension"}, 799 {"servername_fatal", OPT_SERVERNAME_FATAL, '-', 800 "On servername mismatch send fatal alert (default warning alert)"}, 801 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"}, 802 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, 803 {"quiet", OPT_QUIET, '-', "No server output"}, 804 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-', 805 "Disable caching and tickets if ephemeral (EC)DH is used"}, 806 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"}, 807 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"}, 808 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-', 809 "Do not treat lack of close_notify from a peer as an error"}, 810 {"tlsextdebug", OPT_TLSEXTDEBUG, '-', 811 "Hex dump of all TLS extensions received"}, 812 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"}, 813 {"id_prefix", OPT_ID_PREFIX, 's', 814 "Generate SSL/TLS session IDs prefixed by arg"}, 815 {"keymatexport", OPT_KEYMATEXPORT, 's', 816 "Export keying material using label"}, 817 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', 818 "Export len bytes of keying material; default 20"}, 819 {"CRL", OPT_CRL, '<', "CRL file to use"}, 820 {"CRLform", OPT_CRLFORM, 'F', "CRL file format (PEM or DER); default PEM"}, 821 {"crl_download", OPT_CRL_DOWNLOAD, '-', 822 "Download CRLs from distribution points in certificate CDP entries"}, 823 {"chainCAfile", OPT_CHAINCAFILE, '<', 824 "CA file for certificate chain (PEM format)"}, 825 {"chainCApath", OPT_CHAINCAPATH, '/', 826 "use dir as certificate store path to build CA certificate chain"}, 827 {"chainCAstore", OPT_CHAINCASTORE, ':', 828 "use URI as certificate store to build CA certificate chain"}, 829 {"verifyCAfile", OPT_VERIFYCAFILE, '<', 830 "CA file for certificate verification (PEM format)"}, 831 {"verifyCApath", OPT_VERIFYCAPATH, '/', 832 "use dir as certificate store path to verify CA certificate"}, 833 {"verifyCAstore", OPT_VERIFYCASTORE, ':', 834 "use URI as certificate store to verify CA certificate"}, 835 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"}, 836 {"ext_cache", OPT_EXT_CACHE, '-', 837 "Disable internal cache, set up and use external cache"}, 838 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-', 839 "Close connection on verification error"}, 840 {"verify_quiet", OPT_VERIFY_QUIET, '-', 841 "No verify output except verify errors"}, 842 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input EOF (default when -quiet)"}, 843 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input EOF"}, 844 845 #ifndef OPENSSL_NO_OCSP 846 OPT_SECTION("OCSP"), 847 {"status", OPT_STATUS, '-', "Request certificate status from server"}, 848 {"status_verbose", OPT_STATUS_VERBOSE, '-', 849 "Print more output in certificate status callback"}, 850 {"status_timeout", OPT_STATUS_TIMEOUT, 'n', 851 "Status request responder timeout"}, 852 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"}, 853 {"proxy", OPT_PROXY, 's', 854 "[http[s]://]host[:port][/path] of HTTP(S) proxy to use; path is ignored"}, 855 {"no_proxy", OPT_NO_PROXY, 's', 856 "List of addresses of servers not to use HTTP(S) proxy for"}, 857 {OPT_MORE_STR, 0, 0, 858 "Default from environment variable 'no_proxy', else 'NO_PROXY', else none"}, 859 {"status_file", OPT_STATUS_FILE, '<', 860 "File containing DER encoded OCSP Response"}, 861 #endif 862 863 OPT_SECTION("Debug"), 864 {"security_debug", OPT_SECURITY_DEBUG, '-', 865 "Print output from SSL/TLS security framework"}, 866 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-', 867 "Print more output from SSL/TLS security framework"}, 868 {"brief", OPT_BRIEF, '-', 869 "Restrict output to brief summary of connection parameters"}, 870 {"rev", OPT_REV, '-', 871 "act as an echo server that sends back received text reversed"}, 872 {"debug", OPT_DEBUG, '-', "Print more output"}, 873 {"msg", OPT_MSG, '-', "Show protocol messages"}, 874 {"msgfile", OPT_MSGFILE, '>', 875 "File to send output of -msg or -trace, instead of stdout"}, 876 {"state", OPT_STATE, '-', "Print the SSL states"}, 877 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"}, 878 {"max_pipelines", OPT_MAX_PIPELINES, 'p', 879 "Maximum number of encrypt/decrypt pipelines to be used"}, 880 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"}, 881 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"}, 882 883 OPT_SECTION("Network"), 884 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, 885 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"}, 886 {"mtu", OPT_MTU, 'p', "Set link-layer MTU"}, 887 {"read_buf", OPT_READ_BUF, 'p', 888 "Default read buffer size to be used for connections"}, 889 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p', 890 "Size used to split data for encrypt pipelines"}, 891 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "}, 892 893 OPT_SECTION("Server identity"), 894 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"}, 895 #ifndef OPENSSL_NO_PSK 896 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"}, 897 #endif 898 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, 899 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"}, 900 #ifndef OPENSSL_NO_SRP 901 {"srpvfile", OPT_SRPVFILE, '<', "(deprecated) The verifier file for SRP"}, 902 {"srpuserseed", OPT_SRPUSERSEED, 's', 903 "(deprecated) A seed string for a default user salt"}, 904 #endif 905 906 OPT_SECTION("Protocol and version"), 907 {"max_early_data", OPT_MAX_EARLY, 'n', 908 "The maximum number of bytes of early data as advertised in tickets"}, 909 {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n', 910 "The maximum number of bytes of early data (hard limit)"}, 911 {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"}, 912 {"num_tickets", OPT_S_NUM_TICKETS, 'n', 913 "The number of TLSv1.3 session tickets that a server will automatically issue" }, 914 {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"}, 915 {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"}, 916 {"http_server_binmode", OPT_HTTP_SERVER_BINMODE, '-', "opening files in binary mode when acting as http server (-WWW and -HTTP)"}, 917 {"no_ca_names", OPT_NOCANAMES, '-', 918 "Disable TLS Extension CA Names"}, 919 {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"}, 920 #ifndef OPENSSL_NO_SSL3 921 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"}, 922 #endif 923 #ifndef OPENSSL_NO_TLS1 924 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"}, 925 #endif 926 #ifndef OPENSSL_NO_TLS1_1 927 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"}, 928 #endif 929 #ifndef OPENSSL_NO_TLS1_2 930 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"}, 931 #endif 932 #ifndef OPENSSL_NO_TLS1_3 933 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"}, 934 #endif 935 #ifndef OPENSSL_NO_DTLS 936 {"dtls", OPT_DTLS, '-', "Use any DTLS version"}, 937 {"listen", OPT_LISTEN, '-', 938 "Listen for a DTLS ClientHello with a cookie and then connect"}, 939 #endif 940 #ifndef OPENSSL_NO_DTLS1 941 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"}, 942 #endif 943 #ifndef OPENSSL_NO_DTLS1_2 944 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"}, 945 #endif 946 #ifndef OPENSSL_NO_SCTP 947 {"sctp", OPT_SCTP, '-', "Use SCTP"}, 948 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"}, 949 #endif 950 #ifndef OPENSSL_NO_SRTP 951 {"use_srtp", OPT_SRTP_PROFILES, 's', 952 "Offer SRTP key management with a colon-separated profile list"}, 953 #endif 954 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"}, 955 #ifndef OPENSSL_NO_NEXTPROTONEG 956 {"nextprotoneg", OPT_NEXTPROTONEG, 's', 957 "Set the advertised protocols for the NPN extension (comma-separated list)"}, 958 #endif 959 {"alpn", OPT_ALPN, 's', 960 "Set the advertised protocols for the ALPN extension (comma-separated list)"}, 961 #ifndef OPENSSL_NO_KTLS 962 {"sendfile", OPT_SENDFILE, '-', "Use sendfile to response file with -WWW"}, 963 #endif 964 965 OPT_R_OPTIONS, 966 OPT_S_OPTIONS, 967 OPT_V_OPTIONS, 968 OPT_X_OPTIONS, 969 OPT_PROV_OPTIONS, 970 {NULL} 971 }; 972 973 #define IS_PROT_FLAG(o) \ 974 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \ 975 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2) 976 977 int s_server_main(int argc, char *argv[]) 978 { 979 ENGINE *engine = NULL; 980 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 981 SSL_CONF_CTX *cctx = NULL; 982 const SSL_METHOD *meth = TLS_server_method(); 983 SSL_EXCERT *exc = NULL; 984 STACK_OF(OPENSSL_STRING) *ssl_args = NULL; 985 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL; 986 STACK_OF(X509_CRL) *crls = NULL; 987 X509 *s_cert = NULL, *s_dcert = NULL; 988 X509_VERIFY_PARAM *vpm = NULL; 989 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL; 990 const char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL; 991 char *dpassarg = NULL, *dpass = NULL; 992 char *passarg = NULL, *pass = NULL; 993 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL; 994 char *crl_file = NULL, *prog; 995 #ifdef AF_UNIX 996 int unlink_unix_path = 0; 997 #endif 998 do_server_cb server_cb; 999 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0; 1000 char *dhfile = NULL; 1001 int no_dhe = 0; 1002 int nocert = 0, ret = 1; 1003 int noCApath = 0, noCAfile = 0, noCAstore = 0; 1004 int s_cert_format = FORMAT_UNDEF, s_key_format = FORMAT_UNDEF; 1005 int s_dcert_format = FORMAT_UNDEF, s_dkey_format = FORMAT_UNDEF; 1006 int rev = 0, naccept = -1, sdebug = 0; 1007 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0; 1008 int state = 0, crl_format = FORMAT_UNDEF, crl_download = 0; 1009 char *host = NULL; 1010 char *port = NULL; 1011 unsigned char *context = NULL; 1012 OPTION_CHOICE o; 1013 EVP_PKEY *s_key2 = NULL; 1014 X509 *s_cert2 = NULL; 1015 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING }; 1016 const char *ssl_config = NULL; 1017 int read_buf_len = 0; 1018 #ifndef OPENSSL_NO_NEXTPROTONEG 1019 const char *next_proto_neg_in = NULL; 1020 tlsextnextprotoctx next_proto = { NULL, 0 }; 1021 #endif 1022 const char *alpn_in = NULL; 1023 tlsextalpnctx alpn_ctx = { NULL, 0 }; 1024 #ifndef OPENSSL_NO_PSK 1025 /* by default do not send a PSK identity hint */ 1026 char *psk_identity_hint = NULL; 1027 #endif 1028 char *p; 1029 #ifndef OPENSSL_NO_SRP 1030 char *srpuserseed = NULL; 1031 char *srp_verifier_file = NULL; 1032 #endif 1033 #ifndef OPENSSL_NO_SRTP 1034 char *srtp_profiles = NULL; 1035 #endif 1036 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0; 1037 int s_server_verify = SSL_VERIFY_NONE; 1038 int s_server_session_id_context = 1; /* anything will do */ 1039 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL; 1040 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL; 1041 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL; 1042 #ifndef OPENSSL_NO_OCSP 1043 int s_tlsextstatus = 0; 1044 #endif 1045 int no_resume_ephemeral = 0; 1046 unsigned int max_send_fragment = 0; 1047 unsigned int split_send_fragment = 0, max_pipelines = 0; 1048 const char *s_serverinfo_file = NULL; 1049 const char *keylog_file = NULL; 1050 int max_early_data = -1, recv_max_early_data = -1; 1051 char *psksessf = NULL; 1052 int no_ca_names = 0; 1053 #ifndef OPENSSL_NO_SCTP 1054 int sctp_label_bug = 0; 1055 #endif 1056 int ignore_unexpected_eof = 0; 1057 1058 /* Init of few remaining global variables */ 1059 local_argc = argc; 1060 local_argv = argv; 1061 1062 ctx = ctx2 = NULL; 1063 s_nbio = s_nbio_test = 0; 1064 www = 0; 1065 bio_s_out = NULL; 1066 s_debug = 0; 1067 s_msg = 0; 1068 s_quiet = 0; 1069 s_brief = 0; 1070 async = 0; 1071 use_sendfile = 0; 1072 1073 port = OPENSSL_strdup(PORT); 1074 cctx = SSL_CONF_CTX_new(); 1075 vpm = X509_VERIFY_PARAM_new(); 1076 if (port == NULL || cctx == NULL || vpm == NULL) 1077 goto end; 1078 SSL_CONF_CTX_set_flags(cctx, 1079 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE); 1080 1081 prog = opt_init(argc, argv, s_server_options); 1082 while ((o = opt_next()) != OPT_EOF) { 1083 if (IS_PROT_FLAG(o) && ++prot_opt > 1) { 1084 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); 1085 goto end; 1086 } 1087 if (IS_NO_PROT_FLAG(o)) 1088 no_prot_opt++; 1089 if (prot_opt == 1 && no_prot_opt) { 1090 BIO_printf(bio_err, 1091 "Cannot supply both a protocol flag and '-no_<prot>'\n"); 1092 goto end; 1093 } 1094 switch (o) { 1095 case OPT_EOF: 1096 case OPT_ERR: 1097 opthelp: 1098 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 1099 goto end; 1100 case OPT_HELP: 1101 opt_help(s_server_options); 1102 ret = 0; 1103 goto end; 1104 1105 case OPT_4: 1106 #ifdef AF_UNIX 1107 if (socket_family == AF_UNIX) { 1108 OPENSSL_free(host); host = NULL; 1109 OPENSSL_free(port); port = NULL; 1110 } 1111 #endif 1112 socket_family = AF_INET; 1113 break; 1114 case OPT_6: 1115 if (1) { 1116 #ifdef AF_INET6 1117 #ifdef AF_UNIX 1118 if (socket_family == AF_UNIX) { 1119 OPENSSL_free(host); host = NULL; 1120 OPENSSL_free(port); port = NULL; 1121 } 1122 #endif 1123 socket_family = AF_INET6; 1124 } else { 1125 #endif 1126 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog); 1127 goto end; 1128 } 1129 break; 1130 case OPT_PORT: 1131 #ifdef AF_UNIX 1132 if (socket_family == AF_UNIX) { 1133 socket_family = AF_UNSPEC; 1134 } 1135 #endif 1136 OPENSSL_free(port); port = NULL; 1137 OPENSSL_free(host); host = NULL; 1138 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) { 1139 BIO_printf(bio_err, 1140 "%s: -port argument malformed or ambiguous\n", 1141 port); 1142 goto end; 1143 } 1144 break; 1145 case OPT_ACCEPT: 1146 #ifdef AF_UNIX 1147 if (socket_family == AF_UNIX) { 1148 socket_family = AF_UNSPEC; 1149 } 1150 #endif 1151 OPENSSL_free(port); port = NULL; 1152 OPENSSL_free(host); host = NULL; 1153 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) { 1154 BIO_printf(bio_err, 1155 "%s: -accept argument malformed or ambiguous\n", 1156 port); 1157 goto end; 1158 } 1159 break; 1160 #ifdef AF_UNIX 1161 case OPT_UNIX: 1162 socket_family = AF_UNIX; 1163 OPENSSL_free(host); host = OPENSSL_strdup(opt_arg()); 1164 if (host == NULL) 1165 goto end; 1166 OPENSSL_free(port); port = NULL; 1167 break; 1168 case OPT_UNLINK: 1169 unlink_unix_path = 1; 1170 break; 1171 #endif 1172 case OPT_NACCEPT: 1173 naccept = atol(opt_arg()); 1174 break; 1175 case OPT_VERIFY: 1176 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; 1177 verify_args.depth = atoi(opt_arg()); 1178 if (!s_quiet) 1179 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth); 1180 break; 1181 case OPT_UPPER_V_VERIFY: 1182 s_server_verify = 1183 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | 1184 SSL_VERIFY_CLIENT_ONCE; 1185 verify_args.depth = atoi(opt_arg()); 1186 if (!s_quiet) 1187 BIO_printf(bio_err, 1188 "verify depth is %d, must return a certificate\n", 1189 verify_args.depth); 1190 break; 1191 case OPT_CONTEXT: 1192 context = (unsigned char *)opt_arg(); 1193 break; 1194 case OPT_CERT: 1195 s_cert_file = opt_arg(); 1196 break; 1197 case OPT_NAMEOPT: 1198 if (!set_nameopt(opt_arg())) 1199 goto end; 1200 break; 1201 case OPT_CRL: 1202 crl_file = opt_arg(); 1203 break; 1204 case OPT_CRL_DOWNLOAD: 1205 crl_download = 1; 1206 break; 1207 case OPT_SERVERINFO: 1208 s_serverinfo_file = opt_arg(); 1209 break; 1210 case OPT_CERTFORM: 1211 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_cert_format)) 1212 goto opthelp; 1213 break; 1214 case OPT_KEY: 1215 s_key_file = opt_arg(); 1216 break; 1217 case OPT_KEYFORM: 1218 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format)) 1219 goto opthelp; 1220 break; 1221 case OPT_PASS: 1222 passarg = opt_arg(); 1223 break; 1224 case OPT_CERT_CHAIN: 1225 s_chain_file = opt_arg(); 1226 break; 1227 case OPT_DHPARAM: 1228 dhfile = opt_arg(); 1229 break; 1230 case OPT_DCERTFORM: 1231 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dcert_format)) 1232 goto opthelp; 1233 break; 1234 case OPT_DCERT: 1235 s_dcert_file = opt_arg(); 1236 break; 1237 case OPT_DKEYFORM: 1238 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dkey_format)) 1239 goto opthelp; 1240 break; 1241 case OPT_DPASS: 1242 dpassarg = opt_arg(); 1243 break; 1244 case OPT_DKEY: 1245 s_dkey_file = opt_arg(); 1246 break; 1247 case OPT_DCERT_CHAIN: 1248 s_dchain_file = opt_arg(); 1249 break; 1250 case OPT_NOCERT: 1251 nocert = 1; 1252 break; 1253 case OPT_CAPATH: 1254 CApath = opt_arg(); 1255 break; 1256 case OPT_NOCAPATH: 1257 noCApath = 1; 1258 break; 1259 case OPT_CHAINCAPATH: 1260 chCApath = opt_arg(); 1261 break; 1262 case OPT_VERIFYCAPATH: 1263 vfyCApath = opt_arg(); 1264 break; 1265 case OPT_CASTORE: 1266 CAstore = opt_arg(); 1267 break; 1268 case OPT_NOCASTORE: 1269 noCAstore = 1; 1270 break; 1271 case OPT_CHAINCASTORE: 1272 chCAstore = opt_arg(); 1273 break; 1274 case OPT_VERIFYCASTORE: 1275 vfyCAstore = opt_arg(); 1276 break; 1277 case OPT_NO_CACHE: 1278 no_cache = 1; 1279 break; 1280 case OPT_EXT_CACHE: 1281 ext_cache = 1; 1282 break; 1283 case OPT_CRLFORM: 1284 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) 1285 goto opthelp; 1286 break; 1287 case OPT_S_CASES: 1288 case OPT_S_NUM_TICKETS: 1289 case OPT_ANTI_REPLAY: 1290 case OPT_NO_ANTI_REPLAY: 1291 if (ssl_args == NULL) 1292 ssl_args = sk_OPENSSL_STRING_new_null(); 1293 if (ssl_args == NULL 1294 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag()) 1295 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) { 1296 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1297 goto end; 1298 } 1299 break; 1300 case OPT_V_CASES: 1301 if (!opt_verify(o, vpm)) 1302 goto end; 1303 vpmtouched++; 1304 break; 1305 case OPT_X_CASES: 1306 if (!args_excert(o, &exc)) 1307 goto end; 1308 break; 1309 case OPT_VERIFY_RET_ERROR: 1310 verify_args.return_error = 1; 1311 break; 1312 case OPT_VERIFY_QUIET: 1313 verify_args.quiet = 1; 1314 break; 1315 case OPT_BUILD_CHAIN: 1316 build_chain = 1; 1317 break; 1318 case OPT_CAFILE: 1319 CAfile = opt_arg(); 1320 break; 1321 case OPT_NOCAFILE: 1322 noCAfile = 1; 1323 break; 1324 case OPT_CHAINCAFILE: 1325 chCAfile = opt_arg(); 1326 break; 1327 case OPT_VERIFYCAFILE: 1328 vfyCAfile = opt_arg(); 1329 break; 1330 case OPT_NBIO: 1331 s_nbio = 1; 1332 break; 1333 case OPT_NBIO_TEST: 1334 s_nbio = s_nbio_test = 1; 1335 break; 1336 case OPT_IGN_EOF: 1337 s_ign_eof = 1; 1338 break; 1339 case OPT_NO_IGN_EOF: 1340 s_ign_eof = 0; 1341 break; 1342 case OPT_DEBUG: 1343 s_debug = 1; 1344 break; 1345 case OPT_TLSEXTDEBUG: 1346 s_tlsextdebug = 1; 1347 break; 1348 case OPT_STATUS: 1349 #ifndef OPENSSL_NO_OCSP 1350 s_tlsextstatus = 1; 1351 #endif 1352 break; 1353 case OPT_STATUS_VERBOSE: 1354 #ifndef OPENSSL_NO_OCSP 1355 s_tlsextstatus = tlscstatp.verbose = 1; 1356 #endif 1357 break; 1358 case OPT_STATUS_TIMEOUT: 1359 #ifndef OPENSSL_NO_OCSP 1360 s_tlsextstatus = 1; 1361 tlscstatp.timeout = atoi(opt_arg()); 1362 #endif 1363 break; 1364 case OPT_PROXY: 1365 #ifndef OPENSSL_NO_OCSP 1366 tlscstatp.proxy = opt_arg(); 1367 #endif 1368 break; 1369 case OPT_NO_PROXY: 1370 #ifndef OPENSSL_NO_OCSP 1371 tlscstatp.no_proxy = opt_arg(); 1372 #endif 1373 break; 1374 case OPT_STATUS_URL: 1375 #ifndef OPENSSL_NO_OCSP 1376 s_tlsextstatus = 1; 1377 if (!OSSL_HTTP_parse_url(opt_arg(), &tlscstatp.use_ssl, NULL, 1378 &tlscstatp.host, &tlscstatp.port, NULL, 1379 &tlscstatp.path, NULL, NULL)) { 1380 BIO_printf(bio_err, "Error parsing -status_url argument\n"); 1381 goto end; 1382 } 1383 #endif 1384 break; 1385 case OPT_STATUS_FILE: 1386 #ifndef OPENSSL_NO_OCSP 1387 s_tlsextstatus = 1; 1388 tlscstatp.respin = opt_arg(); 1389 #endif 1390 break; 1391 case OPT_MSG: 1392 s_msg = 1; 1393 break; 1394 case OPT_MSGFILE: 1395 bio_s_msg = BIO_new_file(opt_arg(), "w"); 1396 if (bio_s_msg == NULL) { 1397 BIO_printf(bio_err, "Error writing file %s\n", opt_arg()); 1398 goto end; 1399 } 1400 break; 1401 case OPT_TRACE: 1402 #ifndef OPENSSL_NO_SSL_TRACE 1403 s_msg = 2; 1404 #endif 1405 break; 1406 case OPT_SECURITY_DEBUG: 1407 sdebug = 1; 1408 break; 1409 case OPT_SECURITY_DEBUG_VERBOSE: 1410 sdebug = 2; 1411 break; 1412 case OPT_STATE: 1413 state = 1; 1414 break; 1415 case OPT_CRLF: 1416 s_crlf = 1; 1417 break; 1418 case OPT_QUIET: 1419 s_quiet = 1; 1420 break; 1421 case OPT_BRIEF: 1422 s_quiet = s_brief = verify_args.quiet = 1; 1423 break; 1424 case OPT_NO_DHE: 1425 no_dhe = 1; 1426 break; 1427 case OPT_NO_RESUME_EPHEMERAL: 1428 no_resume_ephemeral = 1; 1429 break; 1430 case OPT_PSK_IDENTITY: 1431 psk_identity = opt_arg(); 1432 break; 1433 case OPT_PSK_HINT: 1434 #ifndef OPENSSL_NO_PSK 1435 psk_identity_hint = opt_arg(); 1436 #endif 1437 break; 1438 case OPT_PSK: 1439 for (p = psk_key = opt_arg(); *p; p++) { 1440 if (isxdigit(_UC(*p))) 1441 continue; 1442 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key); 1443 goto end; 1444 } 1445 break; 1446 case OPT_PSK_SESS: 1447 psksessf = opt_arg(); 1448 break; 1449 case OPT_SRPVFILE: 1450 #ifndef OPENSSL_NO_SRP 1451 srp_verifier_file = opt_arg(); 1452 if (min_version < TLS1_VERSION) 1453 min_version = TLS1_VERSION; 1454 #endif 1455 break; 1456 case OPT_SRPUSERSEED: 1457 #ifndef OPENSSL_NO_SRP 1458 srpuserseed = opt_arg(); 1459 if (min_version < TLS1_VERSION) 1460 min_version = TLS1_VERSION; 1461 #endif 1462 break; 1463 case OPT_REV: 1464 rev = 1; 1465 break; 1466 case OPT_WWW: 1467 www = 1; 1468 break; 1469 case OPT_UPPER_WWW: 1470 www = 2; 1471 break; 1472 case OPT_HTTP: 1473 www = 3; 1474 break; 1475 case OPT_SSL_CONFIG: 1476 ssl_config = opt_arg(); 1477 break; 1478 case OPT_SSL3: 1479 min_version = SSL3_VERSION; 1480 max_version = SSL3_VERSION; 1481 break; 1482 case OPT_TLS1_3: 1483 min_version = TLS1_3_VERSION; 1484 max_version = TLS1_3_VERSION; 1485 break; 1486 case OPT_TLS1_2: 1487 min_version = TLS1_2_VERSION; 1488 max_version = TLS1_2_VERSION; 1489 break; 1490 case OPT_TLS1_1: 1491 min_version = TLS1_1_VERSION; 1492 max_version = TLS1_1_VERSION; 1493 break; 1494 case OPT_TLS1: 1495 min_version = TLS1_VERSION; 1496 max_version = TLS1_VERSION; 1497 break; 1498 case OPT_DTLS: 1499 #ifndef OPENSSL_NO_DTLS 1500 meth = DTLS_server_method(); 1501 socket_type = SOCK_DGRAM; 1502 #endif 1503 break; 1504 case OPT_DTLS1: 1505 #ifndef OPENSSL_NO_DTLS 1506 meth = DTLS_server_method(); 1507 min_version = DTLS1_VERSION; 1508 max_version = DTLS1_VERSION; 1509 socket_type = SOCK_DGRAM; 1510 #endif 1511 break; 1512 case OPT_DTLS1_2: 1513 #ifndef OPENSSL_NO_DTLS 1514 meth = DTLS_server_method(); 1515 min_version = DTLS1_2_VERSION; 1516 max_version = DTLS1_2_VERSION; 1517 socket_type = SOCK_DGRAM; 1518 #endif 1519 break; 1520 case OPT_SCTP: 1521 #ifndef OPENSSL_NO_SCTP 1522 protocol = IPPROTO_SCTP; 1523 #endif 1524 break; 1525 case OPT_SCTP_LABEL_BUG: 1526 #ifndef OPENSSL_NO_SCTP 1527 sctp_label_bug = 1; 1528 #endif 1529 break; 1530 case OPT_TIMEOUT: 1531 #ifndef OPENSSL_NO_DTLS 1532 enable_timeouts = 1; 1533 #endif 1534 break; 1535 case OPT_MTU: 1536 #ifndef OPENSSL_NO_DTLS 1537 socket_mtu = atol(opt_arg()); 1538 #endif 1539 break; 1540 case OPT_LISTEN: 1541 #ifndef OPENSSL_NO_DTLS 1542 dtlslisten = 1; 1543 #endif 1544 break; 1545 case OPT_STATELESS: 1546 stateless = 1; 1547 break; 1548 case OPT_ID_PREFIX: 1549 session_id_prefix = opt_arg(); 1550 break; 1551 case OPT_ENGINE: 1552 #ifndef OPENSSL_NO_ENGINE 1553 engine = setup_engine(opt_arg(), s_debug); 1554 #endif 1555 break; 1556 case OPT_R_CASES: 1557 if (!opt_rand(o)) 1558 goto end; 1559 break; 1560 case OPT_PROV_CASES: 1561 if (!opt_provider(o)) 1562 goto end; 1563 break; 1564 case OPT_SERVERNAME: 1565 tlsextcbp.servername = opt_arg(); 1566 break; 1567 case OPT_SERVERNAME_FATAL: 1568 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; 1569 break; 1570 case OPT_CERT2: 1571 s_cert_file2 = opt_arg(); 1572 break; 1573 case OPT_KEY2: 1574 s_key_file2 = opt_arg(); 1575 break; 1576 case OPT_NEXTPROTONEG: 1577 # ifndef OPENSSL_NO_NEXTPROTONEG 1578 next_proto_neg_in = opt_arg(); 1579 #endif 1580 break; 1581 case OPT_ALPN: 1582 alpn_in = opt_arg(); 1583 break; 1584 case OPT_SRTP_PROFILES: 1585 #ifndef OPENSSL_NO_SRTP 1586 srtp_profiles = opt_arg(); 1587 #endif 1588 break; 1589 case OPT_KEYMATEXPORT: 1590 keymatexportlabel = opt_arg(); 1591 break; 1592 case OPT_KEYMATEXPORTLEN: 1593 keymatexportlen = atoi(opt_arg()); 1594 break; 1595 case OPT_ASYNC: 1596 async = 1; 1597 break; 1598 case OPT_MAX_SEND_FRAG: 1599 max_send_fragment = atoi(opt_arg()); 1600 break; 1601 case OPT_SPLIT_SEND_FRAG: 1602 split_send_fragment = atoi(opt_arg()); 1603 break; 1604 case OPT_MAX_PIPELINES: 1605 max_pipelines = atoi(opt_arg()); 1606 break; 1607 case OPT_READ_BUF: 1608 read_buf_len = atoi(opt_arg()); 1609 break; 1610 case OPT_KEYLOG_FILE: 1611 keylog_file = opt_arg(); 1612 break; 1613 case OPT_MAX_EARLY: 1614 max_early_data = atoi(opt_arg()); 1615 if (max_early_data < 0) { 1616 BIO_printf(bio_err, "Invalid value for max_early_data\n"); 1617 goto end; 1618 } 1619 break; 1620 case OPT_RECV_MAX_EARLY: 1621 recv_max_early_data = atoi(opt_arg()); 1622 if (recv_max_early_data < 0) { 1623 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n"); 1624 goto end; 1625 } 1626 break; 1627 case OPT_EARLY_DATA: 1628 early_data = 1; 1629 if (max_early_data == -1) 1630 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; 1631 break; 1632 case OPT_HTTP_SERVER_BINMODE: 1633 http_server_binmode = 1; 1634 break; 1635 case OPT_NOCANAMES: 1636 no_ca_names = 1; 1637 break; 1638 case OPT_SENDFILE: 1639 #ifndef OPENSSL_NO_KTLS 1640 use_sendfile = 1; 1641 #endif 1642 break; 1643 case OPT_IGNORE_UNEXPECTED_EOF: 1644 ignore_unexpected_eof = 1; 1645 break; 1646 } 1647 } 1648 1649 /* No extra arguments. */ 1650 argc = opt_num_rest(); 1651 if (argc != 0) 1652 goto opthelp; 1653 1654 if (!app_RAND_load()) 1655 goto end; 1656 1657 #ifndef OPENSSL_NO_NEXTPROTONEG 1658 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) { 1659 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n"); 1660 goto opthelp; 1661 } 1662 #endif 1663 #ifndef OPENSSL_NO_DTLS 1664 if (www && socket_type == SOCK_DGRAM) { 1665 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n"); 1666 goto end; 1667 } 1668 1669 if (dtlslisten && socket_type != SOCK_DGRAM) { 1670 BIO_printf(bio_err, "Can only use -listen with DTLS\n"); 1671 goto end; 1672 } 1673 #endif 1674 1675 if (stateless && socket_type != SOCK_STREAM) { 1676 BIO_printf(bio_err, "Can only use --stateless with TLS\n"); 1677 goto end; 1678 } 1679 1680 #ifdef AF_UNIX 1681 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) { 1682 BIO_printf(bio_err, 1683 "Can't use unix sockets and datagrams together\n"); 1684 goto end; 1685 } 1686 #endif 1687 if (early_data && (www > 0 || rev)) { 1688 BIO_printf(bio_err, 1689 "Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n"); 1690 goto end; 1691 } 1692 1693 #ifndef OPENSSL_NO_SCTP 1694 if (protocol == IPPROTO_SCTP) { 1695 if (socket_type != SOCK_DGRAM) { 1696 BIO_printf(bio_err, "Can't use -sctp without DTLS\n"); 1697 goto end; 1698 } 1699 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */ 1700 socket_type = SOCK_STREAM; 1701 } 1702 #endif 1703 1704 #ifndef OPENSSL_NO_KTLS 1705 if (use_sendfile && www <= 1) { 1706 BIO_printf(bio_err, "Can't use -sendfile without -WWW or -HTTP\n"); 1707 goto end; 1708 } 1709 #endif 1710 1711 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) { 1712 BIO_printf(bio_err, "Error getting password\n"); 1713 goto end; 1714 } 1715 1716 if (s_key_file == NULL) 1717 s_key_file = s_cert_file; 1718 1719 if (s_key_file2 == NULL) 1720 s_key_file2 = s_cert_file2; 1721 1722 if (!load_excert(&exc)) 1723 goto end; 1724 1725 if (nocert == 0) { 1726 s_key = load_key(s_key_file, s_key_format, 0, pass, engine, 1727 "server certificate private key"); 1728 if (s_key == NULL) 1729 goto end; 1730 1731 s_cert = load_cert_pass(s_cert_file, s_cert_format, 1, pass, 1732 "server certificate"); 1733 1734 if (s_cert == NULL) 1735 goto end; 1736 if (s_chain_file != NULL) { 1737 if (!load_certs(s_chain_file, 0, &s_chain, NULL, 1738 "server certificate chain")) 1739 goto end; 1740 } 1741 1742 if (tlsextcbp.servername != NULL) { 1743 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine, 1744 "second server certificate private key"); 1745 if (s_key2 == NULL) 1746 goto end; 1747 1748 s_cert2 = load_cert_pass(s_cert_file2, s_cert_format, 1, pass, 1749 "second server certificate"); 1750 1751 if (s_cert2 == NULL) 1752 goto end; 1753 } 1754 } 1755 #if !defined(OPENSSL_NO_NEXTPROTONEG) 1756 if (next_proto_neg_in) { 1757 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in); 1758 if (next_proto.data == NULL) 1759 goto end; 1760 } 1761 #endif 1762 alpn_ctx.data = NULL; 1763 if (alpn_in) { 1764 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in); 1765 if (alpn_ctx.data == NULL) 1766 goto end; 1767 } 1768 1769 if (crl_file != NULL) { 1770 X509_CRL *crl; 1771 crl = load_crl(crl_file, crl_format, 0, "CRL"); 1772 if (crl == NULL) 1773 goto end; 1774 crls = sk_X509_CRL_new_null(); 1775 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { 1776 BIO_puts(bio_err, "Error adding CRL\n"); 1777 ERR_print_errors(bio_err); 1778 X509_CRL_free(crl); 1779 goto end; 1780 } 1781 } 1782 1783 if (s_dcert_file != NULL) { 1784 1785 if (s_dkey_file == NULL) 1786 s_dkey_file = s_dcert_file; 1787 1788 s_dkey = load_key(s_dkey_file, s_dkey_format, 1789 0, dpass, engine, "second certificate private key"); 1790 if (s_dkey == NULL) 1791 goto end; 1792 1793 s_dcert = load_cert_pass(s_dcert_file, s_dcert_format, 1, dpass, 1794 "second server certificate"); 1795 1796 if (s_dcert == NULL) { 1797 ERR_print_errors(bio_err); 1798 goto end; 1799 } 1800 if (s_dchain_file != NULL) { 1801 if (!load_certs(s_dchain_file, 0, &s_dchain, NULL, 1802 "second server certificate chain")) 1803 goto end; 1804 } 1805 1806 } 1807 1808 if (bio_s_out == NULL) { 1809 if (s_quiet && !s_debug) { 1810 bio_s_out = BIO_new(BIO_s_null()); 1811 if (s_msg && bio_s_msg == NULL) { 1812 bio_s_msg = dup_bio_out(FORMAT_TEXT); 1813 if (bio_s_msg == NULL) { 1814 BIO_printf(bio_err, "Out of memory\n"); 1815 goto end; 1816 } 1817 } 1818 } else { 1819 bio_s_out = dup_bio_out(FORMAT_TEXT); 1820 } 1821 } 1822 1823 if (bio_s_out == NULL) 1824 goto end; 1825 1826 if (nocert) { 1827 s_cert_file = NULL; 1828 s_key_file = NULL; 1829 s_dcert_file = NULL; 1830 s_dkey_file = NULL; 1831 s_cert_file2 = NULL; 1832 s_key_file2 = NULL; 1833 } 1834 1835 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth); 1836 if (ctx == NULL) { 1837 ERR_print_errors(bio_err); 1838 goto end; 1839 } 1840 1841 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 1842 1843 if (sdebug) 1844 ssl_ctx_security_debug(ctx, sdebug); 1845 1846 if (!config_ctx(cctx, ssl_args, ctx)) 1847 goto end; 1848 1849 if (ssl_config) { 1850 if (SSL_CTX_config(ctx, ssl_config) == 0) { 1851 BIO_printf(bio_err, "Error using configuration \"%s\"\n", 1852 ssl_config); 1853 ERR_print_errors(bio_err); 1854 goto end; 1855 } 1856 } 1857 #ifndef OPENSSL_NO_SCTP 1858 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1) 1859 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG); 1860 #endif 1861 1862 if (min_version != 0 1863 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0) 1864 goto end; 1865 if (max_version != 0 1866 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0) 1867 goto end; 1868 1869 if (session_id_prefix) { 1870 if (strlen(session_id_prefix) >= 32) 1871 BIO_printf(bio_err, 1872 "warning: id_prefix is too long, only one new session will be possible\n"); 1873 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 1874 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1875 ERR_print_errors(bio_err); 1876 goto end; 1877 } 1878 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1879 } 1880 if (exc != NULL) 1881 ssl_ctx_set_excert(ctx, exc); 1882 1883 if (state) 1884 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1885 if (no_cache) 1886 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 1887 else if (ext_cache) 1888 init_session_cache_ctx(ctx); 1889 else 1890 SSL_CTX_sess_set_cache_size(ctx, 128); 1891 1892 if (async) { 1893 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); 1894 } 1895 1896 if (no_ca_names) { 1897 SSL_CTX_set_options(ctx, SSL_OP_DISABLE_TLSEXT_CA_NAMES); 1898 } 1899 1900 if (ignore_unexpected_eof) 1901 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF); 1902 1903 if (max_send_fragment > 0 1904 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) { 1905 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n", 1906 prog, max_send_fragment); 1907 goto end; 1908 } 1909 1910 if (split_send_fragment > 0 1911 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) { 1912 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n", 1913 prog, split_send_fragment); 1914 goto end; 1915 } 1916 if (max_pipelines > 0 1917 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) { 1918 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n", 1919 prog, max_pipelines); 1920 goto end; 1921 } 1922 1923 if (read_buf_len > 0) { 1924 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); 1925 } 1926 #ifndef OPENSSL_NO_SRTP 1927 if (srtp_profiles != NULL) { 1928 /* Returns 0 on success! */ 1929 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { 1930 BIO_printf(bio_err, "Error setting SRTP profile\n"); 1931 ERR_print_errors(bio_err); 1932 goto end; 1933 } 1934 } 1935 #endif 1936 1937 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath, 1938 CAstore, noCAstore)) { 1939 ERR_print_errors(bio_err); 1940 goto end; 1941 } 1942 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { 1943 BIO_printf(bio_err, "Error setting verify params\n"); 1944 ERR_print_errors(bio_err); 1945 goto end; 1946 } 1947 1948 ssl_ctx_add_crls(ctx, crls, 0); 1949 1950 if (!ssl_load_stores(ctx, 1951 vfyCApath, vfyCAfile, vfyCAstore, 1952 chCApath, chCAfile, chCAstore, 1953 crls, crl_download)) { 1954 BIO_printf(bio_err, "Error loading store locations\n"); 1955 ERR_print_errors(bio_err); 1956 goto end; 1957 } 1958 1959 if (s_cert2) { 1960 ctx2 = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth); 1961 if (ctx2 == NULL) { 1962 ERR_print_errors(bio_err); 1963 goto end; 1964 } 1965 } 1966 1967 if (ctx2 != NULL) { 1968 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 1969 1970 if (sdebug) 1971 ssl_ctx_security_debug(ctx2, sdebug); 1972 1973 if (session_id_prefix) { 1974 if (strlen(session_id_prefix) >= 32) 1975 BIO_printf(bio_err, 1976 "warning: id_prefix is too long, only one new session will be possible\n"); 1977 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { 1978 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1979 ERR_print_errors(bio_err); 1980 goto end; 1981 } 1982 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1983 } 1984 if (exc != NULL) 1985 ssl_ctx_set_excert(ctx2, exc); 1986 1987 if (state) 1988 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 1989 1990 if (no_cache) 1991 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 1992 else if (ext_cache) 1993 init_session_cache_ctx(ctx2); 1994 else 1995 SSL_CTX_sess_set_cache_size(ctx2, 128); 1996 1997 if (async) 1998 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC); 1999 2000 if (!ctx_set_verify_locations(ctx2, CAfile, noCAfile, CApath, 2001 noCApath, CAstore, noCAstore)) { 2002 ERR_print_errors(bio_err); 2003 goto end; 2004 } 2005 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) { 2006 BIO_printf(bio_err, "Error setting verify params\n"); 2007 ERR_print_errors(bio_err); 2008 goto end; 2009 } 2010 2011 ssl_ctx_add_crls(ctx2, crls, 0); 2012 if (!config_ctx(cctx, ssl_args, ctx2)) 2013 goto end; 2014 } 2015 #ifndef OPENSSL_NO_NEXTPROTONEG 2016 if (next_proto.data) 2017 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, 2018 &next_proto); 2019 #endif 2020 if (alpn_ctx.data) 2021 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 2022 2023 if (!no_dhe) { 2024 EVP_PKEY *dhpkey = NULL; 2025 2026 if (dhfile != NULL) 2027 dhpkey = load_keyparams(dhfile, FORMAT_UNDEF, 0, "DH", "DH parameters"); 2028 else if (s_cert_file != NULL) 2029 dhpkey = load_keyparams_suppress(s_cert_file, FORMAT_UNDEF, 0, "DH", 2030 "DH parameters", 1); 2031 2032 if (dhpkey != NULL) { 2033 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 2034 } else { 2035 BIO_printf(bio_s_out, "Using default temp DH parameters\n"); 2036 } 2037 (void)BIO_flush(bio_s_out); 2038 2039 if (dhpkey == NULL) { 2040 SSL_CTX_set_dh_auto(ctx, 1); 2041 } else { 2042 /* 2043 * We need 2 references: one for use by ctx and one for use by 2044 * ctx2 2045 */ 2046 if (!EVP_PKEY_up_ref(dhpkey)) { 2047 EVP_PKEY_free(dhpkey); 2048 goto end; 2049 } 2050 if (!SSL_CTX_set0_tmp_dh_pkey(ctx, dhpkey)) { 2051 BIO_puts(bio_err, "Error setting temp DH parameters\n"); 2052 ERR_print_errors(bio_err); 2053 /* Free 2 references */ 2054 EVP_PKEY_free(dhpkey); 2055 EVP_PKEY_free(dhpkey); 2056 goto end; 2057 } 2058 } 2059 2060 if (ctx2 != NULL) { 2061 if (dhfile != NULL) { 2062 EVP_PKEY *dhpkey2 = load_keyparams_suppress(s_cert_file2, 2063 FORMAT_UNDEF, 2064 0, "DH", 2065 "DH parameters", 1); 2066 2067 if (dhpkey2 != NULL) { 2068 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 2069 (void)BIO_flush(bio_s_out); 2070 2071 EVP_PKEY_free(dhpkey); 2072 dhpkey = dhpkey2; 2073 } 2074 } 2075 if (dhpkey == NULL) { 2076 SSL_CTX_set_dh_auto(ctx2, 1); 2077 } else if (!SSL_CTX_set0_tmp_dh_pkey(ctx2, dhpkey)) { 2078 BIO_puts(bio_err, "Error setting temp DH parameters\n"); 2079 ERR_print_errors(bio_err); 2080 EVP_PKEY_free(dhpkey); 2081 goto end; 2082 } 2083 dhpkey = NULL; 2084 } 2085 EVP_PKEY_free(dhpkey); 2086 } 2087 2088 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain)) 2089 goto end; 2090 2091 if (s_serverinfo_file != NULL 2092 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) { 2093 ERR_print_errors(bio_err); 2094 goto end; 2095 } 2096 2097 if (ctx2 != NULL 2098 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain)) 2099 goto end; 2100 2101 if (s_dcert != NULL) { 2102 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain)) 2103 goto end; 2104 } 2105 2106 if (no_resume_ephemeral) { 2107 SSL_CTX_set_not_resumable_session_callback(ctx, 2108 not_resumable_sess_cb); 2109 2110 if (ctx2 != NULL) 2111 SSL_CTX_set_not_resumable_session_callback(ctx2, 2112 not_resumable_sess_cb); 2113 } 2114 #ifndef OPENSSL_NO_PSK 2115 if (psk_key != NULL) { 2116 if (s_debug) 2117 BIO_printf(bio_s_out, "PSK key given, setting server callback\n"); 2118 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb); 2119 } 2120 2121 if (psk_identity_hint != NULL) { 2122 if (min_version == TLS1_3_VERSION) { 2123 BIO_printf(bio_s_out, "PSK warning: there is NO identity hint in TLSv1.3\n"); 2124 } else { 2125 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) { 2126 BIO_printf(bio_err, "error setting PSK identity hint to context\n"); 2127 ERR_print_errors(bio_err); 2128 goto end; 2129 } 2130 } 2131 } 2132 #endif 2133 if (psksessf != NULL) { 2134 BIO *stmp = BIO_new_file(psksessf, "r"); 2135 2136 if (stmp == NULL) { 2137 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf); 2138 ERR_print_errors(bio_err); 2139 goto end; 2140 } 2141 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 2142 BIO_free(stmp); 2143 if (psksess == NULL) { 2144 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf); 2145 ERR_print_errors(bio_err); 2146 goto end; 2147 } 2148 2149 } 2150 2151 if (psk_key != NULL || psksess != NULL) 2152 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb); 2153 2154 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); 2155 if (!SSL_CTX_set_session_id_context(ctx, 2156 (void *)&s_server_session_id_context, 2157 sizeof(s_server_session_id_context))) { 2158 BIO_printf(bio_err, "error setting session id context\n"); 2159 ERR_print_errors(bio_err); 2160 goto end; 2161 } 2162 2163 /* Set DTLS cookie generation and verification callbacks */ 2164 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 2165 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 2166 2167 /* Set TLS1.3 cookie generation and verification callbacks */ 2168 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback); 2169 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback); 2170 2171 if (ctx2 != NULL) { 2172 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); 2173 if (!SSL_CTX_set_session_id_context(ctx2, 2174 (void *)&s_server_session_id_context, 2175 sizeof(s_server_session_id_context))) { 2176 BIO_printf(bio_err, "error setting session id context\n"); 2177 ERR_print_errors(bio_err); 2178 goto end; 2179 } 2180 tlsextcbp.biodebug = bio_s_out; 2181 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 2182 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); 2183 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 2184 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 2185 } 2186 2187 #ifndef OPENSSL_NO_SRP 2188 if (srp_verifier_file != NULL) { 2189 if (!set_up_srp_verifier_file(ctx, &srp_callback_parm, srpuserseed, 2190 srp_verifier_file)) 2191 goto end; 2192 } else 2193 #endif 2194 if (CAfile != NULL) { 2195 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); 2196 2197 if (ctx2) 2198 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); 2199 } 2200 #ifndef OPENSSL_NO_OCSP 2201 if (s_tlsextstatus) { 2202 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 2203 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); 2204 if (ctx2) { 2205 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb); 2206 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp); 2207 } 2208 } 2209 #endif 2210 if (set_keylog_file(ctx, keylog_file)) 2211 goto end; 2212 2213 if (max_early_data >= 0) 2214 SSL_CTX_set_max_early_data(ctx, max_early_data); 2215 if (recv_max_early_data >= 0) 2216 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data); 2217 2218 if (rev) 2219 server_cb = rev_body; 2220 else if (www) 2221 server_cb = www_body; 2222 else 2223 server_cb = sv_body; 2224 #ifdef AF_UNIX 2225 if (socket_family == AF_UNIX 2226 && unlink_unix_path) 2227 unlink(host); 2228 #endif 2229 do_server(&accept_socket, host, port, socket_family, socket_type, protocol, 2230 server_cb, context, naccept, bio_s_out); 2231 print_stats(bio_s_out, ctx); 2232 ret = 0; 2233 end: 2234 SSL_CTX_free(ctx); 2235 SSL_SESSION_free(psksess); 2236 set_keylog_file(NULL, NULL); 2237 X509_free(s_cert); 2238 sk_X509_CRL_pop_free(crls, X509_CRL_free); 2239 X509_free(s_dcert); 2240 EVP_PKEY_free(s_key); 2241 EVP_PKEY_free(s_dkey); 2242 sk_X509_pop_free(s_chain, X509_free); 2243 sk_X509_pop_free(s_dchain, X509_free); 2244 OPENSSL_free(pass); 2245 OPENSSL_free(dpass); 2246 OPENSSL_free(host); 2247 OPENSSL_free(port); 2248 X509_VERIFY_PARAM_free(vpm); 2249 free_sessions(); 2250 OPENSSL_free(tlscstatp.host); 2251 OPENSSL_free(tlscstatp.port); 2252 OPENSSL_free(tlscstatp.path); 2253 SSL_CTX_free(ctx2); 2254 X509_free(s_cert2); 2255 EVP_PKEY_free(s_key2); 2256 #ifndef OPENSSL_NO_NEXTPROTONEG 2257 OPENSSL_free(next_proto.data); 2258 #endif 2259 OPENSSL_free(alpn_ctx.data); 2260 ssl_excert_free(exc); 2261 sk_OPENSSL_STRING_free(ssl_args); 2262 SSL_CONF_CTX_free(cctx); 2263 release_engine(engine); 2264 BIO_free(bio_s_out); 2265 bio_s_out = NULL; 2266 BIO_free(bio_s_msg); 2267 bio_s_msg = NULL; 2268 #ifdef CHARSET_EBCDIC 2269 BIO_meth_free(methods_ebcdic); 2270 #endif 2271 return ret; 2272 } 2273 2274 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx) 2275 { 2276 BIO_printf(bio, "%4ld items in the session cache\n", 2277 SSL_CTX_sess_number(ssl_ctx)); 2278 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 2279 SSL_CTX_sess_connect(ssl_ctx)); 2280 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 2281 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 2282 BIO_printf(bio, "%4ld client connects that finished\n", 2283 SSL_CTX_sess_connect_good(ssl_ctx)); 2284 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 2285 SSL_CTX_sess_accept(ssl_ctx)); 2286 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 2287 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 2288 BIO_printf(bio, "%4ld server accepts that finished\n", 2289 SSL_CTX_sess_accept_good(ssl_ctx)); 2290 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); 2291 BIO_printf(bio, "%4ld session cache misses\n", 2292 SSL_CTX_sess_misses(ssl_ctx)); 2293 BIO_printf(bio, "%4ld session cache timeouts\n", 2294 SSL_CTX_sess_timeouts(ssl_ctx)); 2295 BIO_printf(bio, "%4ld callback cache hits\n", 2296 SSL_CTX_sess_cb_hits(ssl_ctx)); 2297 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 2298 SSL_CTX_sess_cache_full(ssl_ctx), 2299 SSL_CTX_sess_get_cache_size(ssl_ctx)); 2300 } 2301 2302 static long int count_reads_callback(BIO *bio, int cmd, const char *argp, size_t len, 2303 int argi, long argl, int ret, size_t *processed) 2304 { 2305 unsigned int *p_counter = (unsigned int *)BIO_get_callback_arg(bio); 2306 2307 switch (cmd) { 2308 case BIO_CB_READ: /* No break here */ 2309 case BIO_CB_GETS: 2310 if (p_counter != NULL) 2311 ++*p_counter; 2312 break; 2313 default: 2314 break; 2315 } 2316 2317 if (s_debug) { 2318 BIO_set_callback_arg(bio, (char *)bio_s_out); 2319 ret = (int)bio_dump_callback(bio, cmd, argp, len, argi, argl, ret, processed); 2320 BIO_set_callback_arg(bio, (char *)p_counter); 2321 } 2322 2323 return ret; 2324 } 2325 2326 static int sv_body(int s, int stype, int prot, unsigned char *context) 2327 { 2328 char *buf = NULL; 2329 fd_set readfds; 2330 int ret = 1, width; 2331 int k, i; 2332 unsigned long l; 2333 SSL *con = NULL; 2334 BIO *sbio; 2335 struct timeval timeout; 2336 #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)) 2337 struct timeval *timeoutp; 2338 #endif 2339 #ifndef OPENSSL_NO_DTLS 2340 # ifndef OPENSSL_NO_SCTP 2341 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP); 2342 # else 2343 int isdtls = (stype == SOCK_DGRAM); 2344 # endif 2345 #endif 2346 2347 buf = app_malloc(bufsize, "server buffer"); 2348 if (s_nbio) { 2349 if (!BIO_socket_nbio(s, 1)) 2350 ERR_print_errors(bio_err); 2351 else if (!s_quiet) 2352 BIO_printf(bio_err, "Turned on non blocking io\n"); 2353 } 2354 2355 con = SSL_new(ctx); 2356 if (con == NULL) { 2357 ret = -1; 2358 goto err; 2359 } 2360 2361 if (s_tlsextdebug) { 2362 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2363 SSL_set_tlsext_debug_arg(con, bio_s_out); 2364 } 2365 2366 if (context != NULL 2367 && !SSL_set_session_id_context(con, context, 2368 strlen((char *)context))) { 2369 BIO_printf(bio_err, "Error setting session id context\n"); 2370 ret = -1; 2371 goto err; 2372 } 2373 2374 if (!SSL_clear(con)) { 2375 BIO_printf(bio_err, "Error clearing SSL connection\n"); 2376 ret = -1; 2377 goto err; 2378 } 2379 #ifndef OPENSSL_NO_DTLS 2380 if (isdtls) { 2381 # ifndef OPENSSL_NO_SCTP 2382 if (prot == IPPROTO_SCTP) 2383 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE); 2384 else 2385 # endif 2386 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 2387 if (sbio == NULL) { 2388 BIO_printf(bio_err, "Unable to create BIO\n"); 2389 ERR_print_errors(bio_err); 2390 goto err; 2391 } 2392 2393 if (enable_timeouts) { 2394 timeout.tv_sec = 0; 2395 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 2396 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 2397 2398 timeout.tv_sec = 0; 2399 timeout.tv_usec = DGRAM_SND_TIMEOUT; 2400 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 2401 } 2402 2403 if (socket_mtu) { 2404 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 2405 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 2406 DTLS_get_link_min_mtu(con)); 2407 ret = -1; 2408 BIO_free(sbio); 2409 goto err; 2410 } 2411 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 2412 if (!DTLS_set_link_mtu(con, socket_mtu)) { 2413 BIO_printf(bio_err, "Failed to set MTU\n"); 2414 ret = -1; 2415 BIO_free(sbio); 2416 goto err; 2417 } 2418 } else 2419 /* want to do MTU discovery */ 2420 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 2421 2422 # ifndef OPENSSL_NO_SCTP 2423 if (prot != IPPROTO_SCTP) 2424 # endif 2425 /* Turn on cookie exchange. Not necessary for SCTP */ 2426 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 2427 } else 2428 #endif 2429 sbio = BIO_new_socket(s, BIO_NOCLOSE); 2430 2431 if (sbio == NULL) { 2432 BIO_printf(bio_err, "Unable to create BIO\n"); 2433 ERR_print_errors(bio_err); 2434 goto err; 2435 } 2436 2437 if (s_nbio_test) { 2438 BIO *test; 2439 2440 test = BIO_new(BIO_f_nbio_test()); 2441 if (test == NULL) { 2442 BIO_printf(bio_err, "Unable to create BIO\n"); 2443 ret = -1; 2444 BIO_free(sbio); 2445 goto err; 2446 } 2447 2448 sbio = BIO_push(test, sbio); 2449 } 2450 2451 SSL_set_bio(con, sbio, sbio); 2452 SSL_set_accept_state(con); 2453 /* SSL_set_fd(con,s); */ 2454 2455 BIO_set_callback_ex(SSL_get_rbio(con), count_reads_callback); 2456 if (s_msg) { 2457 #ifndef OPENSSL_NO_SSL_TRACE 2458 if (s_msg == 2) 2459 SSL_set_msg_callback(con, SSL_trace); 2460 else 2461 #endif 2462 SSL_set_msg_callback(con, msg_cb); 2463 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 2464 } 2465 2466 if (s_tlsextdebug) { 2467 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2468 SSL_set_tlsext_debug_arg(con, bio_s_out); 2469 } 2470 2471 if (early_data) { 2472 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR; 2473 size_t readbytes; 2474 2475 while (edret != SSL_READ_EARLY_DATA_FINISH) { 2476 for (;;) { 2477 edret = SSL_read_early_data(con, buf, bufsize, &readbytes); 2478 if (edret != SSL_READ_EARLY_DATA_ERROR) 2479 break; 2480 2481 switch (SSL_get_error(con, 0)) { 2482 case SSL_ERROR_WANT_WRITE: 2483 case SSL_ERROR_WANT_ASYNC: 2484 case SSL_ERROR_WANT_READ: 2485 /* Just keep trying - busy waiting */ 2486 continue; 2487 default: 2488 BIO_printf(bio_err, "Error reading early data\n"); 2489 ERR_print_errors(bio_err); 2490 goto err; 2491 } 2492 } 2493 if (readbytes > 0) { 2494 if (write_header) { 2495 BIO_printf(bio_s_out, "Early data received:\n"); 2496 write_header = 0; 2497 } 2498 raw_write_stdout(buf, (unsigned int)readbytes); 2499 (void)BIO_flush(bio_s_out); 2500 } 2501 } 2502 if (write_header) { 2503 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT) 2504 BIO_printf(bio_s_out, "No early data received\n"); 2505 else 2506 BIO_printf(bio_s_out, "Early data was rejected\n"); 2507 } else { 2508 BIO_printf(bio_s_out, "\nEnd of early data\n"); 2509 } 2510 if (SSL_is_init_finished(con)) 2511 print_connection_info(con); 2512 } 2513 2514 if (fileno_stdin() > s) 2515 width = fileno_stdin() + 1; 2516 else 2517 width = s + 1; 2518 for (;;) { 2519 int read_from_terminal; 2520 int read_from_sslcon; 2521 2522 read_from_terminal = 0; 2523 read_from_sslcon = SSL_has_pending(con) 2524 || (async && SSL_waiting_for_async(con)); 2525 2526 if (!read_from_sslcon) { 2527 FD_ZERO(&readfds); 2528 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 2529 openssl_fdset(fileno_stdin(), &readfds); 2530 #endif 2531 openssl_fdset(s, &readfds); 2532 /* 2533 * Note: under VMS with SOCKETSHR the second parameter is 2534 * currently of type (int *) whereas under other systems it is 2535 * (void *) if you don't have a cast it will choke the compiler: 2536 * if you do have a cast then you can either go for (int *) or 2537 * (void *). 2538 */ 2539 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2540 /* 2541 * Under DOS (non-djgpp) and Windows we can't select on stdin: 2542 * only on sockets. As a workaround we timeout the select every 2543 * second and check for any keypress. In a proper Windows 2544 * application we wouldn't do this because it is inefficient. 2545 */ 2546 timeout.tv_sec = 1; 2547 timeout.tv_usec = 0; 2548 i = select(width, (void *)&readfds, NULL, NULL, &timeout); 2549 if (has_stdin_waiting()) 2550 read_from_terminal = 1; 2551 if ((i < 0) || (!i && !read_from_terminal)) 2552 continue; 2553 #else 2554 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout)) 2555 timeoutp = &timeout; 2556 else 2557 timeoutp = NULL; 2558 2559 i = select(width, (void *)&readfds, NULL, NULL, timeoutp); 2560 2561 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0) 2562 BIO_printf(bio_err, "TIMEOUT occurred\n"); 2563 2564 if (i <= 0) 2565 continue; 2566 if (FD_ISSET(fileno_stdin(), &readfds)) 2567 read_from_terminal = 1; 2568 #endif 2569 if (FD_ISSET(s, &readfds)) 2570 read_from_sslcon = 1; 2571 } 2572 if (read_from_terminal) { 2573 if (s_crlf) { 2574 int j, lf_num; 2575 2576 i = raw_read_stdin(buf, bufsize / 2); 2577 lf_num = 0; 2578 /* both loops are skipped when i <= 0 */ 2579 for (j = 0; j < i; j++) 2580 if (buf[j] == '\n') 2581 lf_num++; 2582 for (j = i - 1; j >= 0; j--) { 2583 buf[j + lf_num] = buf[j]; 2584 if (buf[j] == '\n') { 2585 lf_num--; 2586 i++; 2587 buf[j + lf_num] = '\r'; 2588 } 2589 } 2590 assert(lf_num == 0); 2591 } else { 2592 i = raw_read_stdin(buf, bufsize); 2593 } 2594 2595 if (!s_quiet && !s_brief) { 2596 if ((i <= 0) || (buf[0] == 'Q')) { 2597 BIO_printf(bio_s_out, "DONE\n"); 2598 (void)BIO_flush(bio_s_out); 2599 BIO_closesocket(s); 2600 close_accept_socket(); 2601 ret = -11; 2602 goto err; 2603 } 2604 if ((i <= 0) || (buf[0] == 'q')) { 2605 BIO_printf(bio_s_out, "DONE\n"); 2606 (void)BIO_flush(bio_s_out); 2607 if (SSL_version(con) != DTLS1_VERSION) 2608 BIO_closesocket(s); 2609 /* 2610 * close_accept_socket(); ret= -11; 2611 */ 2612 goto err; 2613 } 2614 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2615 SSL_renegotiate(con); 2616 i = SSL_do_handshake(con); 2617 printf("SSL_do_handshake -> %d\n", i); 2618 i = 0; /* 13; */ 2619 continue; 2620 } 2621 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2622 SSL_set_verify(con, 2623 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, 2624 NULL); 2625 SSL_renegotiate(con); 2626 i = SSL_do_handshake(con); 2627 printf("SSL_do_handshake -> %d\n", i); 2628 i = 0; /* 13; */ 2629 continue; 2630 } 2631 if ((buf[0] == 'K' || buf[0] == 'k') 2632 && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2633 SSL_key_update(con, buf[0] == 'K' ? 2634 SSL_KEY_UPDATE_REQUESTED 2635 : SSL_KEY_UPDATE_NOT_REQUESTED); 2636 i = SSL_do_handshake(con); 2637 printf("SSL_do_handshake -> %d\n", i); 2638 i = 0; 2639 continue; 2640 } 2641 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2642 SSL_set_verify(con, SSL_VERIFY_PEER, NULL); 2643 i = SSL_verify_client_post_handshake(con); 2644 if (i == 0) { 2645 printf("Failed to initiate request\n"); 2646 ERR_print_errors(bio_err); 2647 } else { 2648 i = SSL_do_handshake(con); 2649 printf("SSL_do_handshake -> %d\n", i); 2650 i = 0; 2651 } 2652 continue; 2653 } 2654 if (buf[0] == 'P') { 2655 static const char str[] = "Lets print some clear text\n"; 2656 BIO_write(SSL_get_wbio(con), str, sizeof(str) -1); 2657 } 2658 if (buf[0] == 'S') { 2659 print_stats(bio_s_out, SSL_get_SSL_CTX(con)); 2660 } 2661 } 2662 #ifdef CHARSET_EBCDIC 2663 ebcdic2ascii(buf, buf, i); 2664 #endif 2665 l = k = 0; 2666 for (;;) { 2667 /* should do a select for the write */ 2668 #ifdef RENEG 2669 static count = 0; 2670 if (++count == 100) { 2671 count = 0; 2672 SSL_renegotiate(con); 2673 } 2674 #endif 2675 k = SSL_write(con, &(buf[l]), (unsigned int)i); 2676 #ifndef OPENSSL_NO_SRP 2677 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) { 2678 BIO_printf(bio_s_out, "LOOKUP renego during write\n"); 2679 2680 lookup_srp_user(&srp_callback_parm, bio_s_out); 2681 2682 k = SSL_write(con, &(buf[l]), (unsigned int)i); 2683 } 2684 #endif 2685 switch (SSL_get_error(con, k)) { 2686 case SSL_ERROR_NONE: 2687 break; 2688 case SSL_ERROR_WANT_ASYNC: 2689 BIO_printf(bio_s_out, "Write 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 case SSL_ERROR_WANT_X509_LOOKUP: 2696 BIO_printf(bio_s_out, "Write BLOCK\n"); 2697 (void)BIO_flush(bio_s_out); 2698 break; 2699 case SSL_ERROR_WANT_ASYNC_JOB: 2700 /* 2701 * This shouldn't ever happen in s_server. Treat as an error 2702 */ 2703 case SSL_ERROR_SYSCALL: 2704 case SSL_ERROR_SSL: 2705 BIO_printf(bio_s_out, "ERROR\n"); 2706 (void)BIO_flush(bio_s_out); 2707 ERR_print_errors(bio_err); 2708 ret = 1; 2709 goto err; 2710 /* break; */ 2711 case SSL_ERROR_ZERO_RETURN: 2712 BIO_printf(bio_s_out, "DONE\n"); 2713 (void)BIO_flush(bio_s_out); 2714 ret = 1; 2715 goto err; 2716 } 2717 if (k > 0) { 2718 l += k; 2719 i -= k; 2720 } 2721 if (i <= 0) 2722 break; 2723 } 2724 } 2725 if (read_from_sslcon) { 2726 /* 2727 * init_ssl_connection handles all async events itself so if we're 2728 * waiting for async then we shouldn't go back into 2729 * init_ssl_connection 2730 */ 2731 if ((!async || !SSL_waiting_for_async(con)) 2732 && !SSL_is_init_finished(con)) { 2733 /* 2734 * Count number of reads during init_ssl_connection. 2735 * It helps us to distinguish configuration errors from errors 2736 * caused by a client. 2737 */ 2738 unsigned int read_counter = 0; 2739 2740 BIO_set_callback_arg(SSL_get_rbio(con), (char *)&read_counter); 2741 i = init_ssl_connection(con); 2742 BIO_set_callback_arg(SSL_get_rbio(con), NULL); 2743 2744 /* 2745 * If initialization fails without reads, then 2746 * there was a fatal error in configuration. 2747 */ 2748 if (i <= 0 && read_counter == 0) { 2749 ret = -1; 2750 goto err; 2751 } 2752 if (i < 0) { 2753 ret = 0; 2754 goto err; 2755 } else if (i == 0) { 2756 ret = 1; 2757 goto err; 2758 } 2759 } else { 2760 again: 2761 i = SSL_read(con, (char *)buf, bufsize); 2762 #ifndef OPENSSL_NO_SRP 2763 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { 2764 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 2765 2766 lookup_srp_user(&srp_callback_parm, bio_s_out); 2767 2768 i = SSL_read(con, (char *)buf, bufsize); 2769 } 2770 #endif 2771 switch (SSL_get_error(con, i)) { 2772 case SSL_ERROR_NONE: 2773 #ifdef CHARSET_EBCDIC 2774 ascii2ebcdic(buf, buf, i); 2775 #endif 2776 raw_write_stdout(buf, (unsigned int)i); 2777 (void)BIO_flush(bio_s_out); 2778 if (SSL_has_pending(con)) 2779 goto again; 2780 break; 2781 case SSL_ERROR_WANT_ASYNC: 2782 BIO_printf(bio_s_out, "Read BLOCK (Async)\n"); 2783 (void)BIO_flush(bio_s_out); 2784 wait_for_async(con); 2785 break; 2786 case SSL_ERROR_WANT_WRITE: 2787 case SSL_ERROR_WANT_READ: 2788 BIO_printf(bio_s_out, "Read BLOCK\n"); 2789 (void)BIO_flush(bio_s_out); 2790 break; 2791 case SSL_ERROR_WANT_ASYNC_JOB: 2792 /* 2793 * This shouldn't ever happen in s_server. Treat as an error 2794 */ 2795 case SSL_ERROR_SYSCALL: 2796 case SSL_ERROR_SSL: 2797 BIO_printf(bio_s_out, "ERROR\n"); 2798 (void)BIO_flush(bio_s_out); 2799 ERR_print_errors(bio_err); 2800 ret = 1; 2801 goto err; 2802 case SSL_ERROR_ZERO_RETURN: 2803 BIO_printf(bio_s_out, "DONE\n"); 2804 (void)BIO_flush(bio_s_out); 2805 ret = 1; 2806 goto err; 2807 } 2808 } 2809 } 2810 } 2811 err: 2812 if (con != NULL) { 2813 BIO_printf(bio_s_out, "shutting down SSL\n"); 2814 do_ssl_shutdown(con); 2815 SSL_free(con); 2816 } 2817 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 2818 OPENSSL_clear_free(buf, bufsize); 2819 return ret; 2820 } 2821 2822 static void close_accept_socket(void) 2823 { 2824 BIO_printf(bio_err, "shutdown accept socket\n"); 2825 if (accept_socket >= 0) { 2826 BIO_closesocket(accept_socket); 2827 } 2828 } 2829 2830 static int is_retryable(SSL *con, int i) 2831 { 2832 int err = SSL_get_error(con, i); 2833 2834 /* If it's not a fatal error, it must be retryable */ 2835 return (err != SSL_ERROR_SSL) 2836 && (err != SSL_ERROR_SYSCALL) 2837 && (err != SSL_ERROR_ZERO_RETURN); 2838 } 2839 2840 static int init_ssl_connection(SSL *con) 2841 { 2842 int i; 2843 long verify_err; 2844 int retry = 0; 2845 2846 if (dtlslisten || stateless) { 2847 BIO_ADDR *client = NULL; 2848 2849 if (dtlslisten) { 2850 if ((client = BIO_ADDR_new()) == NULL) { 2851 BIO_printf(bio_err, "ERROR - memory\n"); 2852 return 0; 2853 } 2854 i = DTLSv1_listen(con, client); 2855 } else { 2856 i = SSL_stateless(con); 2857 } 2858 if (i > 0) { 2859 BIO *wbio; 2860 int fd = -1; 2861 2862 if (dtlslisten) { 2863 wbio = SSL_get_wbio(con); 2864 if (wbio) { 2865 BIO_get_fd(wbio, &fd); 2866 } 2867 2868 if (!wbio || BIO_connect(fd, client, 0) == 0) { 2869 BIO_printf(bio_err, "ERROR - unable to connect\n"); 2870 BIO_ADDR_free(client); 2871 return 0; 2872 } 2873 2874 (void)BIO_ctrl_set_connected(wbio, client); 2875 BIO_ADDR_free(client); 2876 dtlslisten = 0; 2877 } else { 2878 stateless = 0; 2879 } 2880 i = SSL_accept(con); 2881 } else { 2882 BIO_ADDR_free(client); 2883 } 2884 } else { 2885 do { 2886 i = SSL_accept(con); 2887 2888 if (i <= 0) 2889 retry = is_retryable(con, i); 2890 #ifdef CERT_CB_TEST_RETRY 2891 { 2892 while (i <= 0 2893 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP 2894 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) { 2895 BIO_printf(bio_err, 2896 "LOOKUP from certificate callback during accept\n"); 2897 i = SSL_accept(con); 2898 if (i <= 0) 2899 retry = is_retryable(con, i); 2900 } 2901 } 2902 #endif 2903 2904 #ifndef OPENSSL_NO_SRP 2905 while (i <= 0 2906 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { 2907 BIO_printf(bio_s_out, "LOOKUP during accept %s\n", 2908 srp_callback_parm.login); 2909 2910 lookup_srp_user(&srp_callback_parm, bio_s_out); 2911 2912 i = SSL_accept(con); 2913 if (i <= 0) 2914 retry = is_retryable(con, i); 2915 } 2916 #endif 2917 } while (i < 0 && SSL_waiting_for_async(con)); 2918 } 2919 2920 if (i <= 0) { 2921 if (((dtlslisten || stateless) && i == 0) 2922 || (!dtlslisten && !stateless && retry)) { 2923 BIO_printf(bio_s_out, "DELAY\n"); 2924 return 1; 2925 } 2926 2927 BIO_printf(bio_err, "ERROR\n"); 2928 2929 verify_err = SSL_get_verify_result(con); 2930 if (verify_err != X509_V_OK) { 2931 BIO_printf(bio_err, "verify error:%s\n", 2932 X509_verify_cert_error_string(verify_err)); 2933 } 2934 /* Always print any error messages */ 2935 ERR_print_errors(bio_err); 2936 return 0; 2937 } 2938 2939 print_connection_info(con); 2940 return 1; 2941 } 2942 2943 static void print_connection_info(SSL *con) 2944 { 2945 const char *str; 2946 X509 *peer; 2947 char buf[BUFSIZ]; 2948 #if !defined(OPENSSL_NO_NEXTPROTONEG) 2949 const unsigned char *next_proto_neg; 2950 unsigned next_proto_neg_len; 2951 #endif 2952 unsigned char *exportedkeymat; 2953 int i; 2954 2955 if (s_brief) 2956 print_ssl_summary(con); 2957 2958 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 2959 2960 peer = SSL_get0_peer_certificate(con); 2961 if (peer != NULL) { 2962 BIO_printf(bio_s_out, "Client certificate\n"); 2963 PEM_write_bio_X509(bio_s_out, peer); 2964 dump_cert_text(bio_s_out, peer); 2965 peer = NULL; 2966 } 2967 2968 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL) 2969 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 2970 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 2971 ssl_print_sigalgs(bio_s_out, con); 2972 #ifndef OPENSSL_NO_EC 2973 ssl_print_point_formats(bio_s_out, con); 2974 ssl_print_groups(bio_s_out, con, 0); 2975 #endif 2976 print_ca_names(bio_s_out, con); 2977 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 2978 2979 #if !defined(OPENSSL_NO_NEXTPROTONEG) 2980 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len); 2981 if (next_proto_neg) { 2982 BIO_printf(bio_s_out, "NEXTPROTO is "); 2983 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len); 2984 BIO_printf(bio_s_out, "\n"); 2985 } 2986 #endif 2987 #ifndef OPENSSL_NO_SRTP 2988 { 2989 SRTP_PROTECTION_PROFILE *srtp_profile 2990 = SSL_get_selected_srtp_profile(con); 2991 2992 if (srtp_profile) 2993 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", 2994 srtp_profile->name); 2995 } 2996 #endif 2997 if (SSL_session_reused(con)) 2998 BIO_printf(bio_s_out, "Reused session-id\n"); 2999 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", 3000 SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); 3001 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION)) 3002 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n"); 3003 3004 if (keymatexportlabel != NULL) { 3005 BIO_printf(bio_s_out, "Keying material exporter:\n"); 3006 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); 3007 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen); 3008 exportedkeymat = app_malloc(keymatexportlen, "export key"); 3009 if (SSL_export_keying_material(con, exportedkeymat, 3010 keymatexportlen, 3011 keymatexportlabel, 3012 strlen(keymatexportlabel), 3013 NULL, 0, 0) <= 0) { 3014 BIO_printf(bio_s_out, " Error\n"); 3015 } else { 3016 BIO_printf(bio_s_out, " Keying material: "); 3017 for (i = 0; i < keymatexportlen; i++) 3018 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]); 3019 BIO_printf(bio_s_out, "\n"); 3020 } 3021 OPENSSL_free(exportedkeymat); 3022 } 3023 #ifndef OPENSSL_NO_KTLS 3024 if (BIO_get_ktls_send(SSL_get_wbio(con))) 3025 BIO_printf(bio_err, "Using Kernel TLS for sending\n"); 3026 if (BIO_get_ktls_recv(SSL_get_rbio(con))) 3027 BIO_printf(bio_err, "Using Kernel TLS for receiving\n"); 3028 #endif 3029 3030 (void)BIO_flush(bio_s_out); 3031 } 3032 3033 static int www_body(int s, int stype, int prot, unsigned char *context) 3034 { 3035 char *buf = NULL; 3036 int ret = 1; 3037 int i, j, k, dot; 3038 SSL *con; 3039 const SSL_CIPHER *c; 3040 BIO *io, *ssl_bio, *sbio; 3041 #ifdef RENEG 3042 int total_bytes = 0; 3043 #endif 3044 int width; 3045 #ifndef OPENSSL_NO_KTLS 3046 int use_sendfile_for_req = use_sendfile; 3047 #endif 3048 fd_set readfds; 3049 const char *opmode; 3050 #ifdef CHARSET_EBCDIC 3051 BIO *filter; 3052 #endif 3053 3054 /* Set width for a select call if needed */ 3055 width = s + 1; 3056 3057 /* as we use BIO_gets(), and it always null terminates data, we need 3058 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */ 3059 buf = app_malloc(bufsize + 1, "server www buffer"); 3060 io = BIO_new(BIO_f_buffer()); 3061 ssl_bio = BIO_new(BIO_f_ssl()); 3062 if ((io == NULL) || (ssl_bio == NULL)) 3063 goto err; 3064 3065 if (s_nbio) { 3066 if (!BIO_socket_nbio(s, 1)) 3067 ERR_print_errors(bio_err); 3068 else if (!s_quiet) 3069 BIO_printf(bio_err, "Turned on non blocking io\n"); 3070 } 3071 3072 /* lets make the output buffer a reasonable size */ 3073 if (BIO_set_write_buffer_size(io, bufsize) <= 0) 3074 goto err; 3075 3076 if ((con = SSL_new(ctx)) == NULL) 3077 goto err; 3078 3079 if (s_tlsextdebug) { 3080 SSL_set_tlsext_debug_callback(con, tlsext_cb); 3081 SSL_set_tlsext_debug_arg(con, bio_s_out); 3082 } 3083 3084 if (context != NULL 3085 && !SSL_set_session_id_context(con, context, 3086 strlen((char *)context))) { 3087 SSL_free(con); 3088 goto err; 3089 } 3090 3091 sbio = BIO_new_socket(s, BIO_NOCLOSE); 3092 if (sbio == NULL) { 3093 SSL_free(con); 3094 goto err; 3095 } 3096 3097 if (s_nbio_test) { 3098 BIO *test; 3099 3100 test = BIO_new(BIO_f_nbio_test()); 3101 if (test == NULL) { 3102 SSL_free(con); 3103 BIO_free(sbio); 3104 goto err; 3105 } 3106 3107 sbio = BIO_push(test, sbio); 3108 } 3109 SSL_set_bio(con, sbio, sbio); 3110 SSL_set_accept_state(con); 3111 3112 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ 3113 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 3114 BIO_push(io, ssl_bio); 3115 ssl_bio = NULL; 3116 #ifdef CHARSET_EBCDIC 3117 filter = BIO_new(BIO_f_ebcdic_filter()); 3118 if (filter == NULL) 3119 goto err; 3120 3121 io = BIO_push(filter, io); 3122 #endif 3123 3124 if (s_debug) { 3125 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback); 3126 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 3127 } 3128 if (s_msg) { 3129 #ifndef OPENSSL_NO_SSL_TRACE 3130 if (s_msg == 2) 3131 SSL_set_msg_callback(con, SSL_trace); 3132 else 3133 #endif 3134 SSL_set_msg_callback(con, msg_cb); 3135 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 3136 } 3137 3138 for (;;) { 3139 i = BIO_gets(io, buf, bufsize + 1); 3140 if (i < 0) { /* error */ 3141 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) { 3142 if (!s_quiet) 3143 ERR_print_errors(bio_err); 3144 goto err; 3145 } else { 3146 BIO_printf(bio_s_out, "read R BLOCK\n"); 3147 #ifndef OPENSSL_NO_SRP 3148 if (BIO_should_io_special(io) 3149 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3150 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 3151 3152 lookup_srp_user(&srp_callback_parm, bio_s_out); 3153 3154 continue; 3155 } 3156 #endif 3157 ossl_sleep(1000); 3158 continue; 3159 } 3160 } else if (i == 0) { /* end of input */ 3161 ret = 1; 3162 goto end; 3163 } 3164 3165 /* else we have data */ 3166 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || 3167 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { 3168 char *p; 3169 X509 *peer = NULL; 3170 STACK_OF(SSL_CIPHER) *sk; 3171 static const char *space = " "; 3172 3173 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) { 3174 if (strncmp("GET /renegcert", buf, 14) == 0) 3175 SSL_set_verify(con, 3176 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, 3177 NULL); 3178 i = SSL_renegotiate(con); 3179 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i); 3180 /* Send the HelloRequest */ 3181 i = SSL_do_handshake(con); 3182 if (i <= 0) { 3183 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", 3184 SSL_get_error(con, i)); 3185 ERR_print_errors(bio_err); 3186 goto err; 3187 } 3188 /* Wait for a ClientHello to come back */ 3189 FD_ZERO(&readfds); 3190 openssl_fdset(s, &readfds); 3191 i = select(width, (void *)&readfds, NULL, NULL, NULL); 3192 if (i <= 0 || !FD_ISSET(s, &readfds)) { 3193 BIO_printf(bio_s_out, 3194 "Error waiting for client response\n"); 3195 ERR_print_errors(bio_err); 3196 goto err; 3197 } 3198 /* 3199 * We're not actually expecting any data here and we ignore 3200 * any that is sent. This is just to force the handshake that 3201 * we're expecting to come from the client. If they haven't 3202 * sent one there's not much we can do. 3203 */ 3204 BIO_gets(io, buf, bufsize + 1); 3205 } 3206 3207 BIO_puts(io, 3208 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 3209 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 3210 BIO_puts(io, "<pre>\n"); 3211 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */ 3212 BIO_puts(io, "\n"); 3213 for (i = 0; i < local_argc; i++) { 3214 const char *myp; 3215 for (myp = local_argv[i]; *myp; myp++) 3216 switch (*myp) { 3217 case '<': 3218 BIO_puts(io, "<"); 3219 break; 3220 case '>': 3221 BIO_puts(io, ">"); 3222 break; 3223 case '&': 3224 BIO_puts(io, "&"); 3225 break; 3226 default: 3227 BIO_write(io, myp, 1); 3228 break; 3229 } 3230 BIO_write(io, " ", 1); 3231 } 3232 BIO_puts(io, "\n"); 3233 3234 BIO_printf(io, 3235 "Secure Renegotiation IS%s supported\n", 3236 SSL_get_secure_renegotiation_support(con) ? 3237 "" : " NOT"); 3238 3239 /* 3240 * The following is evil and should not really be done 3241 */ 3242 BIO_printf(io, "Ciphers supported in s_server binary\n"); 3243 sk = SSL_get_ciphers(con); 3244 j = sk_SSL_CIPHER_num(sk); 3245 for (i = 0; i < j; i++) { 3246 c = sk_SSL_CIPHER_value(sk, i); 3247 BIO_printf(io, "%-11s:%-25s ", 3248 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3249 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 3250 BIO_puts(io, "\n"); 3251 } 3252 BIO_puts(io, "\n"); 3253 p = SSL_get_shared_ciphers(con, buf, bufsize); 3254 if (p != NULL) { 3255 BIO_printf(io, 3256 "---\nCiphers common between both SSL end points:\n"); 3257 j = i = 0; 3258 while (*p) { 3259 if (*p == ':') { 3260 BIO_write(io, space, 26 - j); 3261 i++; 3262 j = 0; 3263 BIO_write(io, ((i % 3) ? " " : "\n"), 1); 3264 } else { 3265 BIO_write(io, p, 1); 3266 j++; 3267 } 3268 p++; 3269 } 3270 BIO_puts(io, "\n"); 3271 } 3272 ssl_print_sigalgs(io, con); 3273 #ifndef OPENSSL_NO_EC 3274 ssl_print_groups(io, con, 0); 3275 #endif 3276 print_ca_names(io, con); 3277 BIO_printf(io, (SSL_session_reused(con) 3278 ? "---\nReused, " : "---\nNew, ")); 3279 c = SSL_get_current_cipher(con); 3280 BIO_printf(io, "%s, Cipher is %s\n", 3281 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3282 SSL_SESSION_print(io, SSL_get_session(con)); 3283 BIO_printf(io, "---\n"); 3284 print_stats(io, SSL_get_SSL_CTX(con)); 3285 BIO_printf(io, "---\n"); 3286 peer = SSL_get0_peer_certificate(con); 3287 if (peer != NULL) { 3288 BIO_printf(io, "Client certificate\n"); 3289 X509_print(io, peer); 3290 PEM_write_bio_X509(io, peer); 3291 peer = NULL; 3292 } else { 3293 BIO_puts(io, "no client certificate available\n"); 3294 } 3295 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n"); 3296 break; 3297 } else if ((www == 2 || www == 3) 3298 && (strncmp("GET /", buf, 5) == 0)) { 3299 BIO *file; 3300 char *p, *e; 3301 static const char *text = 3302 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 3303 3304 /* skip the '/' */ 3305 p = &(buf[5]); 3306 3307 dot = 1; 3308 for (e = p; *e != '\0'; e++) { 3309 if (e[0] == ' ') 3310 break; 3311 3312 if (e[0] == ':') { 3313 /* Windows drive. We treat this the same way as ".." */ 3314 dot = -1; 3315 break; 3316 } 3317 3318 switch (dot) { 3319 case 1: 3320 dot = (e[0] == '.') ? 2 : 0; 3321 break; 3322 case 2: 3323 dot = (e[0] == '.') ? 3 : 0; 3324 break; 3325 case 3: 3326 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0; 3327 break; 3328 } 3329 if (dot == 0) 3330 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0; 3331 } 3332 dot = (dot == 3) || (dot == -1); /* filename contains ".." 3333 * component */ 3334 3335 if (*e == '\0') { 3336 BIO_puts(io, text); 3337 BIO_printf(io, "'%s' is an invalid file name\r\n", p); 3338 break; 3339 } 3340 *e = '\0'; 3341 3342 if (dot) { 3343 BIO_puts(io, text); 3344 BIO_printf(io, "'%s' contains '..' or ':'\r\n", p); 3345 break; 3346 } 3347 3348 if (*p == '/' || *p == '\\') { 3349 BIO_puts(io, text); 3350 BIO_printf(io, "'%s' is an invalid path\r\n", p); 3351 break; 3352 } 3353 3354 /* if a directory, do the index thang */ 3355 if (app_isdir(p) > 0) { 3356 BIO_puts(io, text); 3357 BIO_printf(io, "'%s' is a directory\r\n", p); 3358 break; 3359 } 3360 3361 opmode = (http_server_binmode == 1) ? "rb" : "r"; 3362 if ((file = BIO_new_file(p, opmode)) == NULL) { 3363 BIO_puts(io, text); 3364 BIO_printf(io, "Error opening '%s' mode='%s'\r\n", p, opmode); 3365 ERR_print_errors(io); 3366 break; 3367 } 3368 3369 if (!s_quiet) 3370 BIO_printf(bio_err, "FILE:%s\n", p); 3371 3372 if (www == 2) { 3373 i = strlen(p); 3374 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 3375 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 3376 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 3377 BIO_puts(io, 3378 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 3379 else 3380 BIO_puts(io, 3381 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 3382 } 3383 /* send the file */ 3384 #ifndef OPENSSL_NO_KTLS 3385 if (use_sendfile_for_req && !BIO_get_ktls_send(SSL_get_wbio(con))) { 3386 BIO_printf(bio_err, "Warning: sendfile requested but KTLS is not available\n"); 3387 use_sendfile_for_req = 0; 3388 } 3389 if (use_sendfile_for_req) { 3390 FILE *fp = NULL; 3391 int fd; 3392 struct stat st; 3393 off_t offset = 0; 3394 size_t filesize; 3395 3396 BIO_get_fp(file, &fp); 3397 fd = fileno(fp); 3398 if (fstat(fd, &st) < 0) { 3399 BIO_printf(io, "Error fstat '%s'\r\n", p); 3400 ERR_print_errors(io); 3401 goto write_error; 3402 } 3403 3404 filesize = st.st_size; 3405 if (((int)BIO_flush(io)) < 0) 3406 goto write_error; 3407 3408 for (;;) { 3409 i = SSL_sendfile(con, fd, offset, filesize, 0); 3410 if (i < 0) { 3411 BIO_printf(io, "Error SSL_sendfile '%s'\r\n", p); 3412 ERR_print_errors(io); 3413 break; 3414 } else { 3415 offset += i; 3416 filesize -= i; 3417 } 3418 3419 if (filesize <= 0) { 3420 if (!s_quiet) 3421 BIO_printf(bio_err, "KTLS SENDFILE '%s' OK\n", p); 3422 3423 break; 3424 } 3425 } 3426 } else 3427 #endif 3428 { 3429 for (;;) { 3430 i = BIO_read(file, buf, bufsize); 3431 if (i <= 0) 3432 break; 3433 3434 #ifdef RENEG 3435 total_bytes += i; 3436 BIO_printf(bio_err, "%d\n", i); 3437 if (total_bytes > 3 * 1024) { 3438 total_bytes = 0; 3439 BIO_printf(bio_err, "RENEGOTIATE\n"); 3440 SSL_renegotiate(con); 3441 } 3442 #endif 3443 3444 for (j = 0; j < i;) { 3445 #ifdef RENEG 3446 static count = 0; 3447 if (++count == 13) 3448 SSL_renegotiate(con); 3449 #endif 3450 k = BIO_write(io, &(buf[j]), i - j); 3451 if (k <= 0) { 3452 if (!BIO_should_retry(io) 3453 && !SSL_waiting_for_async(con)) { 3454 goto write_error; 3455 } else { 3456 BIO_printf(bio_s_out, "rwrite W BLOCK\n"); 3457 } 3458 } else { 3459 j += k; 3460 } 3461 } 3462 } 3463 } 3464 write_error: 3465 BIO_free(file); 3466 break; 3467 } 3468 } 3469 3470 for (;;) { 3471 i = (int)BIO_flush(io); 3472 if (i <= 0) { 3473 if (!BIO_should_retry(io)) 3474 break; 3475 } else 3476 break; 3477 } 3478 end: 3479 /* make sure we re-use sessions */ 3480 do_ssl_shutdown(con); 3481 3482 err: 3483 OPENSSL_free(buf); 3484 BIO_free(ssl_bio); 3485 BIO_free_all(io); 3486 return ret; 3487 } 3488 3489 static int rev_body(int s, int stype, int prot, unsigned char *context) 3490 { 3491 char *buf = NULL; 3492 int i; 3493 int ret = 1; 3494 SSL *con; 3495 BIO *io, *ssl_bio, *sbio; 3496 #ifdef CHARSET_EBCDIC 3497 BIO *filter; 3498 #endif 3499 3500 /* as we use BIO_gets(), and it always null terminates data, we need 3501 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */ 3502 buf = app_malloc(bufsize + 1, "server rev buffer"); 3503 io = BIO_new(BIO_f_buffer()); 3504 ssl_bio = BIO_new(BIO_f_ssl()); 3505 if ((io == NULL) || (ssl_bio == NULL)) 3506 goto err; 3507 3508 /* lets make the output buffer a reasonable size */ 3509 if (BIO_set_write_buffer_size(io, bufsize) <= 0) 3510 goto err; 3511 3512 if ((con = SSL_new(ctx)) == NULL) 3513 goto err; 3514 3515 if (s_tlsextdebug) { 3516 SSL_set_tlsext_debug_callback(con, tlsext_cb); 3517 SSL_set_tlsext_debug_arg(con, bio_s_out); 3518 } 3519 if (context != NULL 3520 && !SSL_set_session_id_context(con, context, 3521 strlen((char *)context))) { 3522 SSL_free(con); 3523 ERR_print_errors(bio_err); 3524 goto err; 3525 } 3526 3527 sbio = BIO_new_socket(s, BIO_NOCLOSE); 3528 if (sbio == NULL) { 3529 SSL_free(con); 3530 ERR_print_errors(bio_err); 3531 goto err; 3532 } 3533 3534 SSL_set_bio(con, sbio, sbio); 3535 SSL_set_accept_state(con); 3536 3537 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ 3538 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 3539 BIO_push(io, ssl_bio); 3540 ssl_bio = NULL; 3541 #ifdef CHARSET_EBCDIC 3542 filter = BIO_new(BIO_f_ebcdic_filter()); 3543 if (filter == NULL) 3544 goto err; 3545 3546 io = BIO_push(filter, io); 3547 #endif 3548 3549 if (s_debug) { 3550 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback); 3551 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 3552 } 3553 if (s_msg) { 3554 #ifndef OPENSSL_NO_SSL_TRACE 3555 if (s_msg == 2) 3556 SSL_set_msg_callback(con, SSL_trace); 3557 else 3558 #endif 3559 SSL_set_msg_callback(con, msg_cb); 3560 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 3561 } 3562 3563 for (;;) { 3564 i = BIO_do_handshake(io); 3565 if (i > 0) 3566 break; 3567 if (!BIO_should_retry(io)) { 3568 BIO_puts(bio_err, "CONNECTION FAILURE\n"); 3569 ERR_print_errors(bio_err); 3570 goto end; 3571 } 3572 #ifndef OPENSSL_NO_SRP 3573 if (BIO_should_io_special(io) 3574 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3575 BIO_printf(bio_s_out, "LOOKUP renego during accept\n"); 3576 3577 lookup_srp_user(&srp_callback_parm, bio_s_out); 3578 3579 continue; 3580 } 3581 #endif 3582 } 3583 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n"); 3584 print_ssl_summary(con); 3585 3586 for (;;) { 3587 i = BIO_gets(io, buf, bufsize + 1); 3588 if (i < 0) { /* error */ 3589 if (!BIO_should_retry(io)) { 3590 if (!s_quiet) 3591 ERR_print_errors(bio_err); 3592 goto err; 3593 } else { 3594 BIO_printf(bio_s_out, "read R BLOCK\n"); 3595 #ifndef OPENSSL_NO_SRP 3596 if (BIO_should_io_special(io) 3597 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3598 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 3599 3600 lookup_srp_user(&srp_callback_parm, bio_s_out); 3601 3602 continue; 3603 } 3604 #endif 3605 ossl_sleep(1000); 3606 continue; 3607 } 3608 } else if (i == 0) { /* end of input */ 3609 ret = 1; 3610 BIO_printf(bio_err, "CONNECTION CLOSED\n"); 3611 goto end; 3612 } else { 3613 char *p = buf + i - 1; 3614 while (i && (*p == '\n' || *p == '\r')) { 3615 p--; 3616 i--; 3617 } 3618 if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) { 3619 ret = 1; 3620 BIO_printf(bio_err, "CONNECTION CLOSED\n"); 3621 goto end; 3622 } 3623 BUF_reverse((unsigned char *)buf, NULL, i); 3624 buf[i] = '\n'; 3625 BIO_write(io, buf, i + 1); 3626 for (;;) { 3627 i = BIO_flush(io); 3628 if (i > 0) 3629 break; 3630 if (!BIO_should_retry(io)) 3631 goto end; 3632 } 3633 } 3634 } 3635 end: 3636 /* make sure we re-use sessions */ 3637 do_ssl_shutdown(con); 3638 3639 err: 3640 3641 OPENSSL_free(buf); 3642 BIO_free(ssl_bio); 3643 BIO_free_all(io); 3644 return ret; 3645 } 3646 3647 #define MAX_SESSION_ID_ATTEMPTS 10 3648 static int generate_session_id(SSL *ssl, unsigned char *id, 3649 unsigned int *id_len) 3650 { 3651 unsigned int count = 0; 3652 unsigned int session_id_prefix_len = strlen(session_id_prefix); 3653 3654 do { 3655 if (RAND_bytes(id, *id_len) <= 0) 3656 return 0; 3657 /* 3658 * Prefix the session_id with the required prefix. NB: If our prefix 3659 * is too long, clip it - but there will be worse effects anyway, eg. 3660 * the server could only possibly create 1 session ID (ie. the 3661 * prefix!) so all future session negotiations will fail due to 3662 * conflicts. 3663 */ 3664 memcpy(id, session_id_prefix, 3665 (session_id_prefix_len < *id_len) ? 3666 session_id_prefix_len : *id_len); 3667 } 3668 while (SSL_has_matching_session_id(ssl, id, *id_len) && 3669 (++count < MAX_SESSION_ID_ATTEMPTS)); 3670 if (count >= MAX_SESSION_ID_ATTEMPTS) 3671 return 0; 3672 return 1; 3673 } 3674 3675 /* 3676 * By default s_server uses an in-memory cache which caches SSL_SESSION 3677 * structures without any serialization. This hides some bugs which only 3678 * become apparent in deployed servers. By implementing a basic external 3679 * session cache some issues can be debugged using s_server. 3680 */ 3681 3682 typedef struct simple_ssl_session_st { 3683 unsigned char *id; 3684 unsigned int idlen; 3685 unsigned char *der; 3686 int derlen; 3687 struct simple_ssl_session_st *next; 3688 } simple_ssl_session; 3689 3690 static simple_ssl_session *first = NULL; 3691 3692 static int add_session(SSL *ssl, SSL_SESSION *session) 3693 { 3694 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session"); 3695 unsigned char *p; 3696 3697 SSL_SESSION_get_id(session, &sess->idlen); 3698 sess->derlen = i2d_SSL_SESSION(session, NULL); 3699 if (sess->derlen < 0) { 3700 BIO_printf(bio_err, "Error encoding session\n"); 3701 OPENSSL_free(sess); 3702 return 0; 3703 } 3704 3705 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen); 3706 sess->der = app_malloc(sess->derlen, "get session buffer"); 3707 if (!sess->id) { 3708 BIO_printf(bio_err, "Out of memory adding to external cache\n"); 3709 OPENSSL_free(sess->id); 3710 OPENSSL_free(sess->der); 3711 OPENSSL_free(sess); 3712 return 0; 3713 } 3714 p = sess->der; 3715 3716 /* Assume it still works. */ 3717 if (i2d_SSL_SESSION(session, &p) != sess->derlen) { 3718 BIO_printf(bio_err, "Unexpected session encoding length\n"); 3719 OPENSSL_free(sess->id); 3720 OPENSSL_free(sess->der); 3721 OPENSSL_free(sess); 3722 return 0; 3723 } 3724 3725 sess->next = first; 3726 first = sess; 3727 BIO_printf(bio_err, "New session added to external cache\n"); 3728 return 0; 3729 } 3730 3731 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen, 3732 int *do_copy) 3733 { 3734 simple_ssl_session *sess; 3735 *do_copy = 0; 3736 for (sess = first; sess; sess = sess->next) { 3737 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) { 3738 const unsigned char *p = sess->der; 3739 BIO_printf(bio_err, "Lookup session: cache hit\n"); 3740 return d2i_SSL_SESSION(NULL, &p, sess->derlen); 3741 } 3742 } 3743 BIO_printf(bio_err, "Lookup session: cache miss\n"); 3744 return NULL; 3745 } 3746 3747 static void del_session(SSL_CTX *sctx, SSL_SESSION *session) 3748 { 3749 simple_ssl_session *sess, *prev = NULL; 3750 const unsigned char *id; 3751 unsigned int idlen; 3752 id = SSL_SESSION_get_id(session, &idlen); 3753 for (sess = first; sess; sess = sess->next) { 3754 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) { 3755 if (prev) 3756 prev->next = sess->next; 3757 else 3758 first = sess->next; 3759 OPENSSL_free(sess->id); 3760 OPENSSL_free(sess->der); 3761 OPENSSL_free(sess); 3762 return; 3763 } 3764 prev = sess; 3765 } 3766 } 3767 3768 static void init_session_cache_ctx(SSL_CTX *sctx) 3769 { 3770 SSL_CTX_set_session_cache_mode(sctx, 3771 SSL_SESS_CACHE_NO_INTERNAL | 3772 SSL_SESS_CACHE_SERVER); 3773 SSL_CTX_sess_set_new_cb(sctx, add_session); 3774 SSL_CTX_sess_set_get_cb(sctx, get_session); 3775 SSL_CTX_sess_set_remove_cb(sctx, del_session); 3776 } 3777 3778 static void free_sessions(void) 3779 { 3780 simple_ssl_session *sess, *tsess; 3781 for (sess = first; sess;) { 3782 OPENSSL_free(sess->id); 3783 OPENSSL_free(sess->der); 3784 tsess = sess; 3785 sess = sess->next; 3786 OPENSSL_free(tsess); 3787 } 3788 first = NULL; 3789 } 3790 3791 #endif /* OPENSSL_NO_SOCK */ 3792