1 /* 2 * Copyright 1995-2025 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 "internal/e_os.h" 13 14 #include <ctype.h> 15 #include <stdio.h> 16 #include <stdlib.h> 17 #include <string.h> 18 #if defined(_WIN32) 19 /* Included before async.h to avoid some warnings */ 20 # include <windows.h> 21 #endif 22 23 #include <openssl/e_os2.h> 24 #include <openssl/async.h> 25 #include <openssl/ssl.h> 26 #include <openssl/decoder.h> 27 #include "internal/sockets.h" /* for openssl_fdset() */ 28 29 #ifndef OPENSSL_NO_SOCK 30 31 /* 32 * With IPv6, it looks like Digital has mixed up the proper order of 33 * recursive header file inclusion, resulting in the compiler complaining 34 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is 35 * needed to have fileno() declared correctly... So let's define u_int 36 */ 37 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) 38 # define __U_INT 39 typedef unsigned int u_int; 40 #endif 41 42 #include <openssl/bn.h> 43 #include "apps.h" 44 #include "progs.h" 45 #include <openssl/err.h> 46 #include <openssl/pem.h> 47 #include <openssl/x509.h> 48 #include <openssl/rand.h> 49 #include <openssl/ocsp.h> 50 #ifndef OPENSSL_NO_DH 51 # include <openssl/dh.h> 52 #endif 53 #include <openssl/rsa.h> 54 #include "s_apps.h" 55 #include "timeouts.h" 56 #ifdef CHARSET_EBCDIC 57 #include <openssl/ebcdic.h> 58 #endif 59 #include "internal/sockets.h" 60 61 static int not_resumable_sess_cb(SSL *s, int is_forward_secure); 62 static int sv_body(int s, int stype, int prot, unsigned char *context); 63 static int www_body(int s, int stype, int prot, unsigned char *context); 64 static int rev_body(int s, int stype, int prot, unsigned char *context); 65 static void close_accept_socket(void); 66 static int init_ssl_connection(SSL *s); 67 static void print_stats(BIO *bp, SSL_CTX *ctx); 68 static int generate_session_id(SSL *ssl, unsigned char *id, 69 unsigned int *id_len); 70 static void init_session_cache_ctx(SSL_CTX *sctx); 71 static void free_sessions(void); 72 static void print_connection_info(SSL *con); 73 74 static const int bufsize = 16 * 1024; 75 static int accept_socket = -1; 76 77 #define TEST_CERT "server.pem" 78 #define TEST_CERT2 "server2.pem" 79 80 static int s_nbio = 0; 81 static int s_nbio_test = 0; 82 static int s_crlf = 0; 83 static SSL_CTX *ctx = NULL; 84 static SSL_CTX *ctx2 = NULL; 85 static int www = 0; 86 87 static BIO *bio_s_out = NULL; 88 static BIO *bio_s_msg = NULL; 89 static int s_debug = 0; 90 static int s_tlsextdebug = 0; 91 static int s_msg = 0; 92 static int s_quiet = 0; 93 static int s_ign_eof = 0; 94 static int s_brief = 0; 95 96 static char *keymatexportlabel = NULL; 97 static int keymatexportlen = 20; 98 99 static int async = 0; 100 101 static int use_sendfile = 0; 102 static int use_zc_sendfile = 0; 103 104 static const char *session_id_prefix = NULL; 105 106 static const unsigned char cert_type_rpk[] = { TLSEXT_cert_type_rpk, TLSEXT_cert_type_x509 }; 107 static int enable_client_rpk = 0; 108 109 #ifndef OPENSSL_NO_DTLS 110 static int enable_timeouts = 0; 111 static long socket_mtu; 112 #endif 113 114 /* 115 * We define this but make it always be 0 in no-dtls builds to simplify the 116 * code. 117 */ 118 static int dtlslisten = 0; 119 static int stateless = 0; 120 121 static int early_data = 0; 122 static SSL_SESSION *psksess = NULL; 123 124 static char *psk_identity = "Client_identity"; 125 char *psk_key = NULL; /* by default PSK is not used */ 126 127 static char http_server_binmode = 0; /* for now: 0/1 = default/binary */ 128 129 #ifndef OPENSSL_NO_PSK 130 static unsigned int psk_server_cb(SSL *ssl, const char *identity, 131 unsigned char *psk, 132 unsigned int max_psk_len) 133 { 134 long key_len = 0; 135 unsigned char *key; 136 137 if (s_debug) 138 BIO_printf(bio_s_out, "psk_server_cb\n"); 139 140 if (!SSL_is_dtls(ssl) && SSL_version(ssl) >= TLS1_3_VERSION) { 141 /* 142 * This callback is designed for use in (D)TLSv1.2 (or below). It is 143 * possible to use a single callback for all protocol versions - but it 144 * is preferred to use a dedicated callback for TLSv1.3. For TLSv1.3 we 145 * have psk_find_session_cb. 146 */ 147 return 0; 148 } 149 150 if (identity == NULL) { 151 BIO_printf(bio_err, "Error: client did not send PSK identity\n"); 152 goto out_err; 153 } 154 if (s_debug) 155 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n", 156 (int)strlen(identity), identity); 157 158 /* here we could lookup the given identity e.g. from a database */ 159 if (strcmp(identity, psk_identity) != 0) { 160 BIO_printf(bio_s_out, "PSK warning: client identity not what we expected" 161 " (got '%s' expected '%s')\n", identity, psk_identity); 162 } else { 163 if (s_debug) 164 BIO_printf(bio_s_out, "PSK client identity found\n"); 165 } 166 167 /* convert the PSK key to binary */ 168 key = OPENSSL_hexstr2buf(psk_key, &key_len); 169 if (key == NULL) { 170 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 171 psk_key); 172 return 0; 173 } 174 if (key_len > (int)max_psk_len) { 175 BIO_printf(bio_err, 176 "psk buffer of callback is too small (%d) for key (%ld)\n", 177 max_psk_len, key_len); 178 OPENSSL_free(key); 179 return 0; 180 } 181 182 memcpy(psk, key, key_len); 183 OPENSSL_free(key); 184 185 if (s_debug) 186 BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len); 187 return key_len; 188 out_err: 189 if (s_debug) 190 BIO_printf(bio_err, "Error in PSK server callback\n"); 191 (void)BIO_flush(bio_err); 192 (void)BIO_flush(bio_s_out); 193 return 0; 194 } 195 #endif 196 197 static int psk_find_session_cb(SSL *ssl, const unsigned char *identity, 198 size_t identity_len, SSL_SESSION **sess) 199 { 200 SSL_SESSION *tmpsess = NULL; 201 unsigned char *key; 202 long key_len; 203 const SSL_CIPHER *cipher = NULL; 204 205 if (strlen(psk_identity) != identity_len 206 || memcmp(psk_identity, identity, identity_len) != 0) { 207 *sess = NULL; 208 return 1; 209 } 210 211 if (psksess != NULL) { 212 if (!SSL_SESSION_up_ref(psksess)) 213 return 0; 214 215 *sess = psksess; 216 return 1; 217 } 218 219 key = OPENSSL_hexstr2buf(psk_key, &key_len); 220 if (key == NULL) { 221 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 222 psk_key); 223 return 0; 224 } 225 226 /* We default to SHA256 */ 227 cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id); 228 if (cipher == NULL) { 229 BIO_printf(bio_err, "Error finding suitable ciphersuite\n"); 230 OPENSSL_free(key); 231 return 0; 232 } 233 234 tmpsess = SSL_SESSION_new(); 235 if (tmpsess == NULL 236 || !SSL_SESSION_set1_master_key(tmpsess, key, key_len) 237 || !SSL_SESSION_set_cipher(tmpsess, cipher) 238 || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) { 239 OPENSSL_free(key); 240 SSL_SESSION_free(tmpsess); 241 return 0; 242 } 243 OPENSSL_free(key); 244 *sess = tmpsess; 245 246 return 1; 247 } 248 249 #ifndef OPENSSL_NO_SRP 250 static srpsrvparm srp_callback_parm; 251 #endif 252 253 static int local_argc = 0; 254 static char **local_argv; 255 256 #ifdef CHARSET_EBCDIC 257 static int ebcdic_new(BIO *bi); 258 static int ebcdic_free(BIO *a); 259 static int ebcdic_read(BIO *b, char *out, int outl); 260 static int ebcdic_write(BIO *b, const char *in, int inl); 261 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr); 262 static int ebcdic_gets(BIO *bp, char *buf, int size); 263 static int ebcdic_puts(BIO *bp, const char *str); 264 265 # define BIO_TYPE_EBCDIC_FILTER (18|0x0200) 266 static BIO_METHOD *methods_ebcdic = NULL; 267 268 /* This struct is "unwarranted chumminess with the compiler." */ 269 typedef struct { 270 size_t alloced; 271 char buff[1]; 272 } EBCDIC_OUTBUFF; 273 274 static const BIO_METHOD *BIO_f_ebcdic_filter(void) 275 { 276 if (methods_ebcdic == NULL) { 277 methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER, 278 "EBCDIC/ASCII filter"); 279 if (methods_ebcdic == NULL 280 || !BIO_meth_set_write(methods_ebcdic, ebcdic_write) 281 || !BIO_meth_set_read(methods_ebcdic, ebcdic_read) 282 || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts) 283 || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets) 284 || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl) 285 || !BIO_meth_set_create(methods_ebcdic, ebcdic_new) 286 || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free)) 287 return NULL; 288 } 289 return methods_ebcdic; 290 } 291 292 static int ebcdic_new(BIO *bi) 293 { 294 EBCDIC_OUTBUFF *wbuf; 295 296 wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf"); 297 wbuf->alloced = 1024; 298 wbuf->buff[0] = '\0'; 299 300 BIO_set_data(bi, wbuf); 301 BIO_set_init(bi, 1); 302 return 1; 303 } 304 305 static int ebcdic_free(BIO *a) 306 { 307 EBCDIC_OUTBUFF *wbuf; 308 309 if (a == NULL) 310 return 0; 311 wbuf = BIO_get_data(a); 312 OPENSSL_free(wbuf); 313 BIO_set_data(a, NULL); 314 BIO_set_init(a, 0); 315 316 return 1; 317 } 318 319 static int ebcdic_read(BIO *b, char *out, int outl) 320 { 321 int ret = 0; 322 BIO *next = BIO_next(b); 323 324 if (out == NULL || outl == 0) 325 return 0; 326 if (next == NULL) 327 return 0; 328 329 ret = BIO_read(next, out, outl); 330 if (ret > 0) 331 ascii2ebcdic(out, out, ret); 332 return ret; 333 } 334 335 static int ebcdic_write(BIO *b, const char *in, int inl) 336 { 337 EBCDIC_OUTBUFF *wbuf; 338 BIO *next = BIO_next(b); 339 int ret = 0; 340 int num; 341 342 if ((in == NULL) || (inl <= 0)) 343 return 0; 344 if (next == NULL) 345 return 0; 346 347 wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b); 348 349 if (inl > (num = wbuf->alloced)) { 350 num = num + num; /* double the size */ 351 if (num < inl) 352 num = inl; 353 OPENSSL_free(wbuf); 354 wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf"); 355 356 wbuf->alloced = num; 357 wbuf->buff[0] = '\0'; 358 359 BIO_set_data(b, wbuf); 360 } 361 362 ebcdic2ascii(wbuf->buff, in, inl); 363 364 ret = BIO_write(next, wbuf->buff, inl); 365 366 return ret; 367 } 368 369 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr) 370 { 371 long ret; 372 BIO *next = BIO_next(b); 373 374 if (next == NULL) 375 return 0; 376 switch (cmd) { 377 case BIO_CTRL_DUP: 378 ret = 0L; 379 break; 380 default: 381 ret = BIO_ctrl(next, cmd, num, ptr); 382 break; 383 } 384 return ret; 385 } 386 387 static int ebcdic_gets(BIO *bp, char *buf, int size) 388 { 389 int i, ret = 0; 390 BIO *next = BIO_next(bp); 391 392 if (next == NULL) 393 return 0; 394 /* return(BIO_gets(bp->next_bio,buf,size));*/ 395 for (i = 0; i < size - 1; ++i) { 396 ret = ebcdic_read(bp, &buf[i], 1); 397 if (ret <= 0) 398 break; 399 else if (buf[i] == '\n') { 400 ++i; 401 break; 402 } 403 } 404 if (i < size) 405 buf[i] = '\0'; 406 return (ret < 0 && i == 0) ? ret : i; 407 } 408 409 static int ebcdic_puts(BIO *bp, const char *str) 410 { 411 if (BIO_next(bp) == NULL) 412 return 0; 413 return ebcdic_write(bp, str, strlen(str)); 414 } 415 #endif 416 417 /* This is a context that we pass to callbacks */ 418 typedef struct tlsextctx_st { 419 char *servername; 420 BIO *biodebug; 421 int extension_error; 422 } tlsextctx; 423 424 static int ssl_servername_cb(SSL *s, int *ad, void *arg) 425 { 426 tlsextctx *p = (tlsextctx *) arg; 427 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 428 429 if (servername != NULL && p->biodebug != NULL) { 430 const char *cp = servername; 431 unsigned char uc; 432 433 BIO_printf(p->biodebug, "Hostname in TLS extension: \""); 434 while ((uc = *cp++) != 0) 435 BIO_printf(p->biodebug, 436 (((uc) & ~127) == 0) && isprint(uc) ? "%c" : "\\x%02x", uc); 437 BIO_printf(p->biodebug, "\"\n"); 438 } 439 440 if (p->servername == NULL) 441 return SSL_TLSEXT_ERR_NOACK; 442 443 if (servername != NULL) { 444 if (OPENSSL_strcasecmp(servername, p->servername)) 445 return p->extension_error; 446 if (ctx2 != NULL) { 447 BIO_printf(p->biodebug, "Switching server context.\n"); 448 SSL_set_SSL_CTX(s, ctx2); 449 } 450 } 451 return SSL_TLSEXT_ERR_OK; 452 } 453 454 /* Structure passed to cert status callback */ 455 typedef struct tlsextstatusctx_st { 456 int timeout; 457 /* File to load OCSP Response from (or NULL if no file) */ 458 char *respin; 459 /* Default responder to use */ 460 char *host, *path, *port; 461 char *proxy, *no_proxy; 462 int use_ssl; 463 int verbose; 464 } tlsextstatusctx; 465 466 static tlsextstatusctx tlscstatp = { -1 }; 467 468 #ifndef OPENSSL_NO_OCSP 469 470 /* 471 * Helper function to get an OCSP_RESPONSE from a responder. This is a 472 * simplified version. It examines certificates each time and makes one OCSP 473 * responder query for each request. A full version would store details such as 474 * the OCSP certificate IDs and minimise the number of OCSP responses by caching 475 * them until they were considered "expired". 476 */ 477 static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx, 478 OCSP_RESPONSE **resp) 479 { 480 char *host = NULL, *port = NULL, *path = NULL; 481 char *proxy = NULL, *no_proxy = NULL; 482 int use_ssl; 483 STACK_OF(OPENSSL_STRING) *aia = NULL; 484 X509 *x = NULL, *cert; 485 X509_NAME *iname; 486 STACK_OF(X509) *chain = NULL; 487 SSL_CTX *ssl_ctx; 488 X509_STORE_CTX *inctx = NULL; 489 X509_OBJECT *obj; 490 OCSP_REQUEST *req = NULL; 491 OCSP_CERTID *id = NULL; 492 STACK_OF(X509_EXTENSION) *exts; 493 int ret = SSL_TLSEXT_ERR_NOACK; 494 int i; 495 496 /* Build up OCSP query from server certificate */ 497 x = SSL_get_certificate(s); 498 iname = X509_get_issuer_name(x); 499 aia = X509_get1_ocsp(x); 500 if (aia != NULL) { 501 if (!OSSL_HTTP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &use_ssl, 502 NULL, &host, &port, NULL, &path, NULL, NULL)) { 503 BIO_puts(bio_err, "cert_status: can't parse AIA URL\n"); 504 goto err; 505 } 506 if (srctx->verbose) 507 BIO_printf(bio_err, "cert_status: AIA URL: %s\n", 508 sk_OPENSSL_STRING_value(aia, 0)); 509 } else { 510 if (srctx->host == NULL) { 511 BIO_puts(bio_err, 512 "cert_status: no AIA and no default responder URL\n"); 513 goto done; 514 } 515 host = srctx->host; 516 path = srctx->path; 517 port = srctx->port; 518 use_ssl = srctx->use_ssl; 519 } 520 proxy = srctx->proxy; 521 no_proxy = srctx->no_proxy; 522 523 ssl_ctx = SSL_get_SSL_CTX(s); 524 if (!SSL_CTX_get0_chain_certs(ssl_ctx, &chain)) 525 goto err; 526 for (i = 0; i < sk_X509_num(chain); i++) { 527 /* check the untrusted certificate chain (-cert_chain option) */ 528 cert = sk_X509_value(chain, i); 529 if (X509_name_cmp(iname, X509_get_subject_name(cert)) == 0) { 530 /* the issuer certificate is found */ 531 id = OCSP_cert_to_id(NULL, x, cert); 532 break; 533 } 534 } 535 if (id == NULL) { 536 inctx = X509_STORE_CTX_new(); 537 if (inctx == NULL) 538 goto err; 539 if (!X509_STORE_CTX_init(inctx, SSL_CTX_get_cert_store(ssl_ctx), 540 NULL, NULL)) 541 goto err; 542 obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509, iname); 543 if (obj == NULL) { 544 BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n"); 545 goto done; 546 } 547 id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj)); 548 X509_OBJECT_free(obj); 549 } 550 if (id == NULL) 551 goto err; 552 req = OCSP_REQUEST_new(); 553 if (req == NULL) 554 goto err; 555 if (!OCSP_request_add0_id(req, id)) 556 goto err; 557 id = NULL; 558 /* Add any extensions to the request */ 559 SSL_get_tlsext_status_exts(s, &exts); 560 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { 561 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); 562 if (!OCSP_REQUEST_add_ext(req, ext, -1)) 563 goto err; 564 } 565 *resp = process_responder(req, host, port, path, proxy, no_proxy, 566 use_ssl, NULL /* headers */, srctx->timeout); 567 if (*resp == NULL) { 568 BIO_puts(bio_err, "cert_status: error querying responder\n"); 569 goto done; 570 } 571 572 ret = SSL_TLSEXT_ERR_OK; 573 goto done; 574 575 err: 576 ret = SSL_TLSEXT_ERR_ALERT_FATAL; 577 done: 578 /* 579 * If we parsed aia we need to free; otherwise they were copied and we 580 * don't 581 */ 582 if (aia != NULL) { 583 OPENSSL_free(host); 584 OPENSSL_free(path); 585 OPENSSL_free(port); 586 X509_email_free(aia); 587 } 588 OCSP_CERTID_free(id); 589 OCSP_REQUEST_free(req); 590 X509_STORE_CTX_free(inctx); 591 return ret; 592 } 593 594 /* 595 * Certificate Status callback. This is called when a client includes a 596 * certificate status request extension. The response is either obtained from a 597 * file, or from an OCSP responder. 598 */ 599 static int cert_status_cb(SSL *s, void *arg) 600 { 601 tlsextstatusctx *srctx = arg; 602 OCSP_RESPONSE *resp = NULL; 603 unsigned char *rspder = NULL; 604 int rspderlen; 605 int ret = SSL_TLSEXT_ERR_ALERT_FATAL; 606 607 if (srctx->verbose) 608 BIO_puts(bio_err, "cert_status: callback called\n"); 609 610 if (srctx->respin != NULL) { 611 BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1); 612 if (derbio == NULL) { 613 BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n"); 614 goto err; 615 } 616 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); 617 BIO_free(derbio); 618 if (resp == NULL) { 619 BIO_puts(bio_err, "cert_status: Error reading OCSP response\n"); 620 goto err; 621 } 622 } else { 623 ret = get_ocsp_resp_from_responder(s, srctx, &resp); 624 if (ret != SSL_TLSEXT_ERR_OK) 625 goto err; 626 } 627 628 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); 629 if (rspderlen <= 0) 630 goto err; 631 632 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); 633 if (srctx->verbose) { 634 BIO_puts(bio_err, "cert_status: ocsp response sent:\n"); 635 OCSP_RESPONSE_print(bio_err, resp, 2); 636 } 637 638 ret = SSL_TLSEXT_ERR_OK; 639 640 err: 641 if (ret != SSL_TLSEXT_ERR_OK) 642 ERR_print_errors(bio_err); 643 644 OCSP_RESPONSE_free(resp); 645 646 return ret; 647 } 648 #endif 649 650 #ifndef OPENSSL_NO_NEXTPROTONEG 651 /* This is the context that we pass to next_proto_cb */ 652 typedef struct tlsextnextprotoctx_st { 653 unsigned char *data; 654 size_t len; 655 } tlsextnextprotoctx; 656 657 static int next_proto_cb(SSL *s, const unsigned char **data, 658 unsigned int *len, void *arg) 659 { 660 tlsextnextprotoctx *next_proto = arg; 661 662 *data = next_proto->data; 663 *len = next_proto->len; 664 665 return SSL_TLSEXT_ERR_OK; 666 } 667 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 668 669 /* This the context that we pass to alpn_cb */ 670 typedef struct tlsextalpnctx_st { 671 unsigned char *data; 672 size_t len; 673 } tlsextalpnctx; 674 675 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, 676 const unsigned char *in, unsigned int inlen, void *arg) 677 { 678 tlsextalpnctx *alpn_ctx = arg; 679 680 if (!s_quiet) { 681 /* We can assume that |in| is syntactically valid. */ 682 unsigned int i; 683 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: "); 684 for (i = 0; i < inlen;) { 685 if (i) 686 BIO_write(bio_s_out, ", ", 2); 687 BIO_write(bio_s_out, &in[i + 1], in[i]); 688 i += in[i] + 1; 689 } 690 BIO_write(bio_s_out, "\n", 1); 691 } 692 693 if (SSL_select_next_proto 694 ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in, 695 inlen) != OPENSSL_NPN_NEGOTIATED) { 696 return SSL_TLSEXT_ERR_ALERT_FATAL; 697 } 698 699 if (!s_quiet) { 700 BIO_printf(bio_s_out, "ALPN protocols selected: "); 701 BIO_write(bio_s_out, *out, *outlen); 702 BIO_write(bio_s_out, "\n", 1); 703 } 704 705 return SSL_TLSEXT_ERR_OK; 706 } 707 708 static int not_resumable_sess_cb(SSL *s, int is_forward_secure) 709 { 710 /* disable resumption for sessions with forward secure ciphers */ 711 return is_forward_secure; 712 } 713 714 typedef enum OPTION_choice { 715 OPT_COMMON, 716 OPT_ENGINE, 717 OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT, 718 OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL, 719 OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM, 720 OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT, 721 OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT, 722 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE, 723 OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, 724 OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, 725 OPT_VERIFYCAFILE, 726 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE, 727 OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF, 728 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE, 729 OPT_STATUS_TIMEOUT, OPT_PROXY, OPT_NO_PROXY, OPT_STATUS_URL, 730 OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE, 731 OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE, 732 OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE, 733 OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK, 734 OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW, 735 OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG, 736 OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF, 737 OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, 738 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS, 739 OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL, 740 OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, OPT_SENDFILE, 741 OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, 742 OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA, 743 OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, OPT_SCTP_LABEL_BUG, 744 OPT_HTTP_SERVER_BINMODE, OPT_NOCANAMES, OPT_IGNORE_UNEXPECTED_EOF, OPT_KTLS, 745 OPT_USE_ZC_SENDFILE, 746 OPT_TFO, OPT_CERT_COMP, 747 OPT_ENABLE_SERVER_RPK, 748 OPT_ENABLE_CLIENT_RPK, 749 OPT_R_ENUM, 750 OPT_S_ENUM, 751 OPT_V_ENUM, 752 OPT_X_ENUM, 753 OPT_PROV_ENUM 754 } OPTION_CHOICE; 755 756 const OPTIONS s_server_options[] = { 757 OPT_SECTION("General"), 758 {"help", OPT_HELP, '-', "Display this summary"}, 759 {"ssl_config", OPT_SSL_CONFIG, 's', 760 "Configure SSL_CTX using the given configuration value"}, 761 #ifndef OPENSSL_NO_SSL_TRACE 762 {"trace", OPT_TRACE, '-', "trace protocol messages"}, 763 #endif 764 #ifndef OPENSSL_NO_ENGINE 765 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 766 #endif 767 768 OPT_SECTION("Network"), 769 {"port", OPT_PORT, 'p', 770 "TCP/IP port to listen on for connections (default is " PORT ")"}, 771 {"accept", OPT_ACCEPT, 's', 772 "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"}, 773 #ifdef AF_UNIX 774 {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"}, 775 {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"}, 776 #endif 777 {"4", OPT_4, '-', "Use IPv4 only"}, 778 {"6", OPT_6, '-', "Use IPv6 only"}, 779 #if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO) 780 {"tfo", OPT_TFO, '-', "Listen for TCP Fast Open connections"}, 781 #endif 782 783 OPT_SECTION("Identity"), 784 {"context", OPT_CONTEXT, 's', "Set session ID context"}, 785 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"}, 786 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, 787 {"CAstore", OPT_CASTORE, ':', "URI to store of CA's"}, 788 {"no-CAfile", OPT_NOCAFILE, '-', 789 "Do not load the default certificates file"}, 790 {"no-CApath", OPT_NOCAPATH, '-', 791 "Do not load certificates from the default certificates directory"}, 792 {"no-CAstore", OPT_NOCASTORE, '-', 793 "Do not load certificates from the default certificates store URI"}, 794 {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"}, 795 {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"}, 796 {"Verify", OPT_UPPER_V_VERIFY, 'n', 797 "Turn on peer certificate verification, must have a cert"}, 798 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"}, 799 {"cert", OPT_CERT, '<', "Server certificate file to use; default " TEST_CERT}, 800 {"cert2", OPT_CERT2, '<', 801 "Certificate file to use for servername; default " TEST_CERT2}, 802 {"certform", OPT_CERTFORM, 'F', 803 "Server certificate file format (PEM/DER/P12); has no effect"}, 804 {"cert_chain", OPT_CERT_CHAIN, '<', 805 "Server certificate chain file in PEM format"}, 806 {"build_chain", OPT_BUILD_CHAIN, '-', "Build server certificate chain"}, 807 {"serverinfo", OPT_SERVERINFO, 's', 808 "PEM serverinfo file for certificate"}, 809 {"key", OPT_KEY, 's', 810 "Private key file to use; default is -cert file or else" TEST_CERT}, 811 {"key2", OPT_KEY2, '<', 812 "-Private Key file to use for servername if not in -cert2"}, 813 {"keyform", OPT_KEYFORM, 'f', "Key format (ENGINE, other values ignored)"}, 814 {"pass", OPT_PASS, 's', "Private key and cert file pass phrase source"}, 815 {"dcert", OPT_DCERT, '<', 816 "Second server certificate file to use (usually for DSA)"}, 817 {"dcertform", OPT_DCERTFORM, 'F', 818 "Second server certificate file format (PEM/DER/P12); has no effect"}, 819 {"dcert_chain", OPT_DCERT_CHAIN, '<', 820 "second server certificate chain file in PEM format"}, 821 {"dkey", OPT_DKEY, '<', 822 "Second private key file to use (usually for DSA)"}, 823 {"dkeyform", OPT_DKEYFORM, 'f', 824 "Second key file format (ENGINE, other values ignored)"}, 825 {"dpass", OPT_DPASS, 's', 826 "Second private key and cert file pass phrase source"}, 827 {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"}, 828 {"servername", OPT_SERVERNAME, 's', 829 "Servername for HostName TLS extension"}, 830 {"servername_fatal", OPT_SERVERNAME_FATAL, '-', 831 "On servername mismatch send fatal alert (default warning alert)"}, 832 {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"}, 833 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, 834 {"quiet", OPT_QUIET, '-', "No server output"}, 835 {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-', 836 "Disable caching and tickets if ephemeral (EC)DH is used"}, 837 {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"}, 838 {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"}, 839 {"ignore_unexpected_eof", OPT_IGNORE_UNEXPECTED_EOF, '-', 840 "Do not treat lack of close_notify from a peer as an error"}, 841 {"tlsextdebug", OPT_TLSEXTDEBUG, '-', 842 "Hex dump of all TLS extensions received"}, 843 {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"}, 844 {"id_prefix", OPT_ID_PREFIX, 's', 845 "Generate SSL/TLS session IDs prefixed by arg"}, 846 {"keymatexport", OPT_KEYMATEXPORT, 's', 847 "Export keying material using label"}, 848 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', 849 "Export len bytes of keying material; default 20"}, 850 {"CRL", OPT_CRL, '<', "CRL file to use"}, 851 {"CRLform", OPT_CRLFORM, 'F', "CRL file format (PEM or DER); default PEM"}, 852 {"crl_download", OPT_CRL_DOWNLOAD, '-', 853 "Download CRLs from distribution points in certificate CDP entries"}, 854 {"chainCAfile", OPT_CHAINCAFILE, '<', 855 "CA file for certificate chain (PEM format)"}, 856 {"chainCApath", OPT_CHAINCAPATH, '/', 857 "use dir as certificate store path to build CA certificate chain"}, 858 {"chainCAstore", OPT_CHAINCASTORE, ':', 859 "use URI as certificate store to build CA certificate chain"}, 860 {"verifyCAfile", OPT_VERIFYCAFILE, '<', 861 "CA file for certificate verification (PEM format)"}, 862 {"verifyCApath", OPT_VERIFYCAPATH, '/', 863 "use dir as certificate store path to verify CA certificate"}, 864 {"verifyCAstore", OPT_VERIFYCASTORE, ':', 865 "use URI as certificate store to verify CA certificate"}, 866 {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"}, 867 {"ext_cache", OPT_EXT_CACHE, '-', 868 "Disable internal cache, set up and use external cache"}, 869 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-', 870 "Close connection on verification error"}, 871 {"verify_quiet", OPT_VERIFY_QUIET, '-', 872 "No verify output except verify errors"}, 873 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input EOF (default when -quiet)"}, 874 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input EOF"}, 875 #ifndef OPENSSL_NO_COMP_ALG 876 {"cert_comp", OPT_CERT_COMP, '-', "Pre-compress server certificates"}, 877 #endif 878 879 #ifndef OPENSSL_NO_OCSP 880 OPT_SECTION("OCSP"), 881 {"status", OPT_STATUS, '-', "Request certificate status from server"}, 882 {"status_verbose", OPT_STATUS_VERBOSE, '-', 883 "Print more output in certificate status callback"}, 884 {"status_timeout", OPT_STATUS_TIMEOUT, 'n', 885 "Status request responder timeout"}, 886 {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"}, 887 {"proxy", OPT_PROXY, 's', 888 "[http[s]://]host[:port][/path] of HTTP(S) proxy to use; path is ignored"}, 889 {"no_proxy", OPT_NO_PROXY, 's', 890 "List of addresses of servers not to use HTTP(S) proxy for"}, 891 {OPT_MORE_STR, 0, 0, 892 "Default from environment variable 'no_proxy', else 'NO_PROXY', else none"}, 893 {"status_file", OPT_STATUS_FILE, '<', 894 "File containing DER encoded OCSP Response"}, 895 #endif 896 897 OPT_SECTION("Debug"), 898 {"security_debug", OPT_SECURITY_DEBUG, '-', 899 "Print output from SSL/TLS security framework"}, 900 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-', 901 "Print more output from SSL/TLS security framework"}, 902 {"brief", OPT_BRIEF, '-', 903 "Restrict output to brief summary of connection parameters"}, 904 {"rev", OPT_REV, '-', 905 "act as an echo server that sends back received text reversed"}, 906 {"debug", OPT_DEBUG, '-', "Print more output"}, 907 {"msg", OPT_MSG, '-', "Show protocol messages"}, 908 {"msgfile", OPT_MSGFILE, '>', 909 "File to send output of -msg or -trace, instead of stdout"}, 910 {"state", OPT_STATE, '-', "Print the SSL states"}, 911 {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"}, 912 {"max_pipelines", OPT_MAX_PIPELINES, 'p', 913 "Maximum number of encrypt/decrypt pipelines to be used"}, 914 {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"}, 915 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"}, 916 917 OPT_SECTION("Network"), 918 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, 919 {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"}, 920 {"mtu", OPT_MTU, 'p', "Set link-layer MTU"}, 921 {"read_buf", OPT_READ_BUF, 'p', 922 "Default read buffer size to be used for connections"}, 923 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p', 924 "Size used to split data for encrypt pipelines"}, 925 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "}, 926 927 OPT_SECTION("Server identity"), 928 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"}, 929 #ifndef OPENSSL_NO_PSK 930 {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"}, 931 #endif 932 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, 933 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"}, 934 #ifndef OPENSSL_NO_SRP 935 {"srpvfile", OPT_SRPVFILE, '<', "(deprecated) The verifier file for SRP"}, 936 {"srpuserseed", OPT_SRPUSERSEED, 's', 937 "(deprecated) A seed string for a default user salt"}, 938 #endif 939 940 OPT_SECTION("Protocol and version"), 941 {"max_early_data", OPT_MAX_EARLY, 'n', 942 "The maximum number of bytes of early data as advertised in tickets"}, 943 {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n', 944 "The maximum number of bytes of early data (hard limit)"}, 945 {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"}, 946 {"num_tickets", OPT_S_NUM_TICKETS, 'n', 947 "The number of TLSv1.3 session tickets that a server will automatically issue" }, 948 {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"}, 949 {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"}, 950 {"http_server_binmode", OPT_HTTP_SERVER_BINMODE, '-', "opening files in binary mode when acting as http server (-WWW and -HTTP)"}, 951 {"no_ca_names", OPT_NOCANAMES, '-', 952 "Disable TLS Extension CA Names"}, 953 {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"}, 954 #ifndef OPENSSL_NO_SSL3 955 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"}, 956 #endif 957 #ifndef OPENSSL_NO_TLS1 958 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"}, 959 #endif 960 #ifndef OPENSSL_NO_TLS1_1 961 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"}, 962 #endif 963 #ifndef OPENSSL_NO_TLS1_2 964 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"}, 965 #endif 966 #ifndef OPENSSL_NO_TLS1_3 967 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"}, 968 #endif 969 #ifndef OPENSSL_NO_DTLS 970 {"dtls", OPT_DTLS, '-', "Use any DTLS version"}, 971 {"listen", OPT_LISTEN, '-', 972 "Listen for a DTLS ClientHello with a cookie and then connect"}, 973 #endif 974 #ifndef OPENSSL_NO_DTLS1 975 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"}, 976 #endif 977 #ifndef OPENSSL_NO_DTLS1_2 978 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"}, 979 #endif 980 #ifndef OPENSSL_NO_SCTP 981 {"sctp", OPT_SCTP, '-', "Use SCTP"}, 982 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"}, 983 #endif 984 #ifndef OPENSSL_NO_SRTP 985 {"use_srtp", OPT_SRTP_PROFILES, 's', 986 "Offer SRTP key management with a colon-separated profile list"}, 987 #endif 988 {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"}, 989 #ifndef OPENSSL_NO_NEXTPROTONEG 990 {"nextprotoneg", OPT_NEXTPROTONEG, 's', 991 "Set the advertised protocols for the NPN extension (comma-separated list)"}, 992 #endif 993 {"alpn", OPT_ALPN, 's', 994 "Set the advertised protocols for the ALPN extension (comma-separated list)"}, 995 #ifndef OPENSSL_NO_KTLS 996 {"ktls", OPT_KTLS, '-', "Enable Kernel TLS for sending and receiving"}, 997 {"sendfile", OPT_SENDFILE, '-', "Use sendfile to response file with -WWW"}, 998 {"zerocopy_sendfile", OPT_USE_ZC_SENDFILE, '-', "Use zerocopy mode of KTLS sendfile"}, 999 #endif 1000 {"enable_server_rpk", OPT_ENABLE_SERVER_RPK, '-', "Enable raw public keys (RFC7250) from the server"}, 1001 {"enable_client_rpk", OPT_ENABLE_CLIENT_RPK, '-', "Enable raw public keys (RFC7250) from the client"}, 1002 OPT_R_OPTIONS, 1003 OPT_S_OPTIONS, 1004 OPT_V_OPTIONS, 1005 OPT_X_OPTIONS, 1006 OPT_PROV_OPTIONS, 1007 {NULL} 1008 }; 1009 1010 #define IS_PROT_FLAG(o) \ 1011 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \ 1012 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2) 1013 1014 int s_server_main(int argc, char *argv[]) 1015 { 1016 ENGINE *engine = NULL; 1017 EVP_PKEY *s_key = NULL, *s_dkey = NULL; 1018 SSL_CONF_CTX *cctx = NULL; 1019 const SSL_METHOD *meth = TLS_server_method(); 1020 SSL_EXCERT *exc = NULL; 1021 STACK_OF(OPENSSL_STRING) *ssl_args = NULL; 1022 STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL; 1023 STACK_OF(X509_CRL) *crls = NULL; 1024 X509 *s_cert = NULL, *s_dcert = NULL; 1025 X509_VERIFY_PARAM *vpm = NULL; 1026 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL; 1027 const char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL; 1028 char *dpassarg = NULL, *dpass = NULL; 1029 char *passarg = NULL, *pass = NULL; 1030 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL; 1031 char *crl_file = NULL, *prog; 1032 #ifdef AF_UNIX 1033 int unlink_unix_path = 0; 1034 #endif 1035 do_server_cb server_cb; 1036 int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0; 1037 char *dhfile = NULL; 1038 int no_dhe = 0; 1039 int nocert = 0, ret = 1; 1040 int noCApath = 0, noCAfile = 0, noCAstore = 0; 1041 int s_cert_format = FORMAT_UNDEF, s_key_format = FORMAT_UNDEF; 1042 int s_dcert_format = FORMAT_UNDEF, s_dkey_format = FORMAT_UNDEF; 1043 int rev = 0, naccept = -1, sdebug = 0; 1044 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0; 1045 int state = 0, crl_format = FORMAT_UNDEF, crl_download = 0; 1046 char *host = NULL; 1047 char *port = NULL; 1048 unsigned char *context = NULL; 1049 OPTION_CHOICE o; 1050 EVP_PKEY *s_key2 = NULL; 1051 X509 *s_cert2 = NULL; 1052 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING }; 1053 const char *ssl_config = NULL; 1054 int read_buf_len = 0; 1055 #ifndef OPENSSL_NO_NEXTPROTONEG 1056 const char *next_proto_neg_in = NULL; 1057 tlsextnextprotoctx next_proto = { NULL, 0 }; 1058 #endif 1059 const char *alpn_in = NULL; 1060 tlsextalpnctx alpn_ctx = { NULL, 0 }; 1061 #ifndef OPENSSL_NO_PSK 1062 /* by default do not send a PSK identity hint */ 1063 char *psk_identity_hint = NULL; 1064 #endif 1065 char *p; 1066 #ifndef OPENSSL_NO_SRP 1067 char *srpuserseed = NULL; 1068 char *srp_verifier_file = NULL; 1069 #endif 1070 #ifndef OPENSSL_NO_SRTP 1071 char *srtp_profiles = NULL; 1072 #endif 1073 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0; 1074 int s_server_verify = SSL_VERIFY_NONE; 1075 int s_server_session_id_context = 1; /* anything will do */ 1076 const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL; 1077 const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL; 1078 char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL; 1079 #ifndef OPENSSL_NO_OCSP 1080 int s_tlsextstatus = 0; 1081 #endif 1082 int no_resume_ephemeral = 0; 1083 unsigned int max_send_fragment = 0; 1084 unsigned int split_send_fragment = 0, max_pipelines = 0; 1085 const char *s_serverinfo_file = NULL; 1086 const char *keylog_file = NULL; 1087 int max_early_data = -1, recv_max_early_data = -1; 1088 char *psksessf = NULL; 1089 int no_ca_names = 0; 1090 #ifndef OPENSSL_NO_SCTP 1091 int sctp_label_bug = 0; 1092 #endif 1093 int ignore_unexpected_eof = 0; 1094 #ifndef OPENSSL_NO_KTLS 1095 int enable_ktls = 0; 1096 #endif 1097 int tfo = 0; 1098 int cert_comp = 0; 1099 int enable_server_rpk = 0; 1100 1101 /* Init of few remaining global variables */ 1102 local_argc = argc; 1103 local_argv = argv; 1104 1105 ctx = ctx2 = NULL; 1106 s_nbio = s_nbio_test = 0; 1107 www = 0; 1108 bio_s_out = NULL; 1109 s_debug = 0; 1110 s_msg = 0; 1111 s_quiet = 0; 1112 s_brief = 0; 1113 async = 0; 1114 use_sendfile = 0; 1115 use_zc_sendfile = 0; 1116 1117 port = OPENSSL_strdup(PORT); 1118 cctx = SSL_CONF_CTX_new(); 1119 vpm = X509_VERIFY_PARAM_new(); 1120 if (port == NULL || cctx == NULL || vpm == NULL) 1121 goto end; 1122 SSL_CONF_CTX_set_flags(cctx, 1123 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE); 1124 1125 prog = opt_init(argc, argv, s_server_options); 1126 while ((o = opt_next()) != OPT_EOF) { 1127 if (IS_PROT_FLAG(o) && ++prot_opt > 1) { 1128 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); 1129 goto end; 1130 } 1131 if (IS_NO_PROT_FLAG(o)) 1132 no_prot_opt++; 1133 if (prot_opt == 1 && no_prot_opt) { 1134 BIO_printf(bio_err, 1135 "Cannot supply both a protocol flag and '-no_<prot>'\n"); 1136 goto end; 1137 } 1138 switch (o) { 1139 case OPT_EOF: 1140 case OPT_ERR: 1141 opthelp: 1142 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 1143 goto end; 1144 case OPT_HELP: 1145 opt_help(s_server_options); 1146 ret = 0; 1147 goto end; 1148 1149 case OPT_4: 1150 #ifdef AF_UNIX 1151 if (socket_family == AF_UNIX) { 1152 OPENSSL_free(host); host = NULL; 1153 OPENSSL_free(port); port = NULL; 1154 } 1155 #endif 1156 socket_family = AF_INET; 1157 break; 1158 case OPT_6: 1159 if (1) { 1160 #ifdef AF_INET6 1161 #ifdef AF_UNIX 1162 if (socket_family == AF_UNIX) { 1163 OPENSSL_free(host); host = NULL; 1164 OPENSSL_free(port); port = NULL; 1165 } 1166 #endif 1167 socket_family = AF_INET6; 1168 } else { 1169 #endif 1170 BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog); 1171 goto end; 1172 } 1173 break; 1174 case OPT_PORT: 1175 #ifdef AF_UNIX 1176 if (socket_family == AF_UNIX) { 1177 socket_family = AF_UNSPEC; 1178 } 1179 #endif 1180 OPENSSL_free(port); port = NULL; 1181 OPENSSL_free(host); host = NULL; 1182 if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) { 1183 BIO_printf(bio_err, 1184 "%s: -port argument malformed or ambiguous\n", 1185 port); 1186 goto end; 1187 } 1188 break; 1189 case OPT_ACCEPT: 1190 #ifdef AF_UNIX 1191 if (socket_family == AF_UNIX) { 1192 socket_family = AF_UNSPEC; 1193 } 1194 #endif 1195 OPENSSL_free(port); port = NULL; 1196 OPENSSL_free(host); host = NULL; 1197 if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) { 1198 BIO_printf(bio_err, 1199 "%s: -accept argument malformed or ambiguous\n", 1200 port); 1201 goto end; 1202 } 1203 break; 1204 #ifdef AF_UNIX 1205 case OPT_UNIX: 1206 socket_family = AF_UNIX; 1207 OPENSSL_free(host); host = OPENSSL_strdup(opt_arg()); 1208 if (host == NULL) 1209 goto end; 1210 OPENSSL_free(port); port = NULL; 1211 break; 1212 case OPT_UNLINK: 1213 unlink_unix_path = 1; 1214 break; 1215 #endif 1216 case OPT_NACCEPT: 1217 naccept = atol(opt_arg()); 1218 break; 1219 case OPT_VERIFY: 1220 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; 1221 verify_args.depth = atoi(opt_arg()); 1222 if (!s_quiet) 1223 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth); 1224 break; 1225 case OPT_UPPER_V_VERIFY: 1226 s_server_verify = 1227 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | 1228 SSL_VERIFY_CLIENT_ONCE; 1229 verify_args.depth = atoi(opt_arg()); 1230 if (!s_quiet) 1231 BIO_printf(bio_err, 1232 "verify depth is %d, must return a certificate\n", 1233 verify_args.depth); 1234 break; 1235 case OPT_CONTEXT: 1236 context = (unsigned char *)opt_arg(); 1237 break; 1238 case OPT_CERT: 1239 s_cert_file = opt_arg(); 1240 break; 1241 case OPT_NAMEOPT: 1242 if (!set_nameopt(opt_arg())) 1243 goto end; 1244 break; 1245 case OPT_CRL: 1246 crl_file = opt_arg(); 1247 break; 1248 case OPT_CRL_DOWNLOAD: 1249 crl_download = 1; 1250 break; 1251 case OPT_SERVERINFO: 1252 s_serverinfo_file = opt_arg(); 1253 break; 1254 case OPT_CERTFORM: 1255 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_cert_format)) 1256 goto opthelp; 1257 break; 1258 case OPT_KEY: 1259 s_key_file = opt_arg(); 1260 break; 1261 case OPT_KEYFORM: 1262 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format)) 1263 goto opthelp; 1264 break; 1265 case OPT_PASS: 1266 passarg = opt_arg(); 1267 break; 1268 case OPT_CERT_CHAIN: 1269 s_chain_file = opt_arg(); 1270 break; 1271 case OPT_DHPARAM: 1272 dhfile = opt_arg(); 1273 break; 1274 case OPT_DCERTFORM: 1275 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dcert_format)) 1276 goto opthelp; 1277 break; 1278 case OPT_DCERT: 1279 s_dcert_file = opt_arg(); 1280 break; 1281 case OPT_DKEYFORM: 1282 if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_dkey_format)) 1283 goto opthelp; 1284 break; 1285 case OPT_DPASS: 1286 dpassarg = opt_arg(); 1287 break; 1288 case OPT_DKEY: 1289 s_dkey_file = opt_arg(); 1290 break; 1291 case OPT_DCERT_CHAIN: 1292 s_dchain_file = opt_arg(); 1293 break; 1294 case OPT_NOCERT: 1295 nocert = 1; 1296 break; 1297 case OPT_CAPATH: 1298 CApath = opt_arg(); 1299 break; 1300 case OPT_NOCAPATH: 1301 noCApath = 1; 1302 break; 1303 case OPT_CHAINCAPATH: 1304 chCApath = opt_arg(); 1305 break; 1306 case OPT_VERIFYCAPATH: 1307 vfyCApath = opt_arg(); 1308 break; 1309 case OPT_CASTORE: 1310 CAstore = opt_arg(); 1311 break; 1312 case OPT_NOCASTORE: 1313 noCAstore = 1; 1314 break; 1315 case OPT_CHAINCASTORE: 1316 chCAstore = opt_arg(); 1317 break; 1318 case OPT_VERIFYCASTORE: 1319 vfyCAstore = opt_arg(); 1320 break; 1321 case OPT_NO_CACHE: 1322 no_cache = 1; 1323 break; 1324 case OPT_EXT_CACHE: 1325 ext_cache = 1; 1326 break; 1327 case OPT_CRLFORM: 1328 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) 1329 goto opthelp; 1330 break; 1331 case OPT_S_CASES: 1332 case OPT_S_NUM_TICKETS: 1333 case OPT_ANTI_REPLAY: 1334 case OPT_NO_ANTI_REPLAY: 1335 if (ssl_args == NULL) 1336 ssl_args = sk_OPENSSL_STRING_new_null(); 1337 if (ssl_args == NULL 1338 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag()) 1339 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) { 1340 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1341 goto end; 1342 } 1343 break; 1344 case OPT_V_CASES: 1345 if (!opt_verify(o, vpm)) 1346 goto end; 1347 vpmtouched++; 1348 break; 1349 case OPT_X_CASES: 1350 if (!args_excert(o, &exc)) 1351 goto end; 1352 break; 1353 case OPT_VERIFY_RET_ERROR: 1354 verify_args.return_error = 1; 1355 break; 1356 case OPT_VERIFY_QUIET: 1357 verify_args.quiet = 1; 1358 break; 1359 case OPT_BUILD_CHAIN: 1360 build_chain = 1; 1361 break; 1362 case OPT_CAFILE: 1363 CAfile = opt_arg(); 1364 break; 1365 case OPT_NOCAFILE: 1366 noCAfile = 1; 1367 break; 1368 case OPT_CHAINCAFILE: 1369 chCAfile = opt_arg(); 1370 break; 1371 case OPT_VERIFYCAFILE: 1372 vfyCAfile = opt_arg(); 1373 break; 1374 case OPT_NBIO: 1375 s_nbio = 1; 1376 break; 1377 case OPT_NBIO_TEST: 1378 s_nbio = s_nbio_test = 1; 1379 break; 1380 case OPT_IGN_EOF: 1381 s_ign_eof = 1; 1382 break; 1383 case OPT_NO_IGN_EOF: 1384 s_ign_eof = 0; 1385 break; 1386 case OPT_DEBUG: 1387 s_debug = 1; 1388 break; 1389 case OPT_TLSEXTDEBUG: 1390 s_tlsextdebug = 1; 1391 break; 1392 case OPT_STATUS: 1393 #ifndef OPENSSL_NO_OCSP 1394 s_tlsextstatus = 1; 1395 #endif 1396 break; 1397 case OPT_STATUS_VERBOSE: 1398 #ifndef OPENSSL_NO_OCSP 1399 s_tlsextstatus = tlscstatp.verbose = 1; 1400 #endif 1401 break; 1402 case OPT_STATUS_TIMEOUT: 1403 #ifndef OPENSSL_NO_OCSP 1404 s_tlsextstatus = 1; 1405 tlscstatp.timeout = atoi(opt_arg()); 1406 #endif 1407 break; 1408 case OPT_PROXY: 1409 #ifndef OPENSSL_NO_OCSP 1410 tlscstatp.proxy = opt_arg(); 1411 #endif 1412 break; 1413 case OPT_NO_PROXY: 1414 #ifndef OPENSSL_NO_OCSP 1415 tlscstatp.no_proxy = opt_arg(); 1416 #endif 1417 break; 1418 case OPT_STATUS_URL: 1419 #ifndef OPENSSL_NO_OCSP 1420 s_tlsextstatus = 1; 1421 if (!OSSL_HTTP_parse_url(opt_arg(), &tlscstatp.use_ssl, NULL, 1422 &tlscstatp.host, &tlscstatp.port, NULL, 1423 &tlscstatp.path, NULL, NULL)) { 1424 BIO_printf(bio_err, "Error parsing -status_url argument\n"); 1425 goto end; 1426 } 1427 #endif 1428 break; 1429 case OPT_STATUS_FILE: 1430 #ifndef OPENSSL_NO_OCSP 1431 s_tlsextstatus = 1; 1432 tlscstatp.respin = opt_arg(); 1433 #endif 1434 break; 1435 case OPT_MSG: 1436 s_msg = 1; 1437 break; 1438 case OPT_MSGFILE: 1439 bio_s_msg = BIO_new_file(opt_arg(), "w"); 1440 if (bio_s_msg == NULL) { 1441 BIO_printf(bio_err, "Error writing file %s\n", opt_arg()); 1442 goto end; 1443 } 1444 break; 1445 case OPT_TRACE: 1446 #ifndef OPENSSL_NO_SSL_TRACE 1447 s_msg = 2; 1448 #endif 1449 break; 1450 case OPT_SECURITY_DEBUG: 1451 sdebug = 1; 1452 break; 1453 case OPT_SECURITY_DEBUG_VERBOSE: 1454 sdebug = 2; 1455 break; 1456 case OPT_STATE: 1457 state = 1; 1458 break; 1459 case OPT_CRLF: 1460 s_crlf = 1; 1461 break; 1462 case OPT_QUIET: 1463 s_quiet = 1; 1464 break; 1465 case OPT_BRIEF: 1466 s_quiet = s_brief = verify_args.quiet = 1; 1467 break; 1468 case OPT_NO_DHE: 1469 no_dhe = 1; 1470 break; 1471 case OPT_NO_RESUME_EPHEMERAL: 1472 no_resume_ephemeral = 1; 1473 break; 1474 case OPT_PSK_IDENTITY: 1475 psk_identity = opt_arg(); 1476 break; 1477 case OPT_PSK_HINT: 1478 #ifndef OPENSSL_NO_PSK 1479 psk_identity_hint = opt_arg(); 1480 #endif 1481 break; 1482 case OPT_PSK: 1483 for (p = psk_key = opt_arg(); *p; p++) { 1484 if (isxdigit(_UC(*p))) 1485 continue; 1486 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key); 1487 goto end; 1488 } 1489 break; 1490 case OPT_PSK_SESS: 1491 psksessf = opt_arg(); 1492 break; 1493 case OPT_SRPVFILE: 1494 #ifndef OPENSSL_NO_SRP 1495 srp_verifier_file = opt_arg(); 1496 if (min_version < TLS1_VERSION) 1497 min_version = TLS1_VERSION; 1498 #endif 1499 break; 1500 case OPT_SRPUSERSEED: 1501 #ifndef OPENSSL_NO_SRP 1502 srpuserseed = opt_arg(); 1503 if (min_version < TLS1_VERSION) 1504 min_version = TLS1_VERSION; 1505 #endif 1506 break; 1507 case OPT_REV: 1508 rev = 1; 1509 break; 1510 case OPT_WWW: 1511 www = 1; 1512 break; 1513 case OPT_UPPER_WWW: 1514 www = 2; 1515 break; 1516 case OPT_HTTP: 1517 www = 3; 1518 break; 1519 case OPT_SSL_CONFIG: 1520 ssl_config = opt_arg(); 1521 break; 1522 case OPT_SSL3: 1523 min_version = SSL3_VERSION; 1524 max_version = SSL3_VERSION; 1525 break; 1526 case OPT_TLS1_3: 1527 min_version = TLS1_3_VERSION; 1528 max_version = TLS1_3_VERSION; 1529 break; 1530 case OPT_TLS1_2: 1531 min_version = TLS1_2_VERSION; 1532 max_version = TLS1_2_VERSION; 1533 break; 1534 case OPT_TLS1_1: 1535 min_version = TLS1_1_VERSION; 1536 max_version = TLS1_1_VERSION; 1537 break; 1538 case OPT_TLS1: 1539 min_version = TLS1_VERSION; 1540 max_version = TLS1_VERSION; 1541 break; 1542 case OPT_DTLS: 1543 #ifndef OPENSSL_NO_DTLS 1544 meth = DTLS_server_method(); 1545 socket_type = SOCK_DGRAM; 1546 #endif 1547 break; 1548 case OPT_DTLS1: 1549 #ifndef OPENSSL_NO_DTLS 1550 meth = DTLS_server_method(); 1551 min_version = DTLS1_VERSION; 1552 max_version = DTLS1_VERSION; 1553 socket_type = SOCK_DGRAM; 1554 #endif 1555 break; 1556 case OPT_DTLS1_2: 1557 #ifndef OPENSSL_NO_DTLS 1558 meth = DTLS_server_method(); 1559 min_version = DTLS1_2_VERSION; 1560 max_version = DTLS1_2_VERSION; 1561 socket_type = SOCK_DGRAM; 1562 #endif 1563 break; 1564 case OPT_SCTP: 1565 #ifndef OPENSSL_NO_SCTP 1566 protocol = IPPROTO_SCTP; 1567 #endif 1568 break; 1569 case OPT_SCTP_LABEL_BUG: 1570 #ifndef OPENSSL_NO_SCTP 1571 sctp_label_bug = 1; 1572 #endif 1573 break; 1574 case OPT_TIMEOUT: 1575 #ifndef OPENSSL_NO_DTLS 1576 enable_timeouts = 1; 1577 #endif 1578 break; 1579 case OPT_MTU: 1580 #ifndef OPENSSL_NO_DTLS 1581 socket_mtu = atol(opt_arg()); 1582 #endif 1583 break; 1584 case OPT_LISTEN: 1585 #ifndef OPENSSL_NO_DTLS 1586 dtlslisten = 1; 1587 #endif 1588 break; 1589 case OPT_STATELESS: 1590 stateless = 1; 1591 break; 1592 case OPT_ID_PREFIX: 1593 session_id_prefix = opt_arg(); 1594 break; 1595 case OPT_ENGINE: 1596 #ifndef OPENSSL_NO_ENGINE 1597 engine = setup_engine(opt_arg(), s_debug); 1598 #endif 1599 break; 1600 case OPT_R_CASES: 1601 if (!opt_rand(o)) 1602 goto end; 1603 break; 1604 case OPT_PROV_CASES: 1605 if (!opt_provider(o)) 1606 goto end; 1607 break; 1608 case OPT_SERVERNAME: 1609 tlsextcbp.servername = opt_arg(); 1610 break; 1611 case OPT_SERVERNAME_FATAL: 1612 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; 1613 break; 1614 case OPT_CERT2: 1615 s_cert_file2 = opt_arg(); 1616 break; 1617 case OPT_KEY2: 1618 s_key_file2 = opt_arg(); 1619 break; 1620 case OPT_NEXTPROTONEG: 1621 # ifndef OPENSSL_NO_NEXTPROTONEG 1622 next_proto_neg_in = opt_arg(); 1623 #endif 1624 break; 1625 case OPT_ALPN: 1626 alpn_in = opt_arg(); 1627 break; 1628 case OPT_SRTP_PROFILES: 1629 #ifndef OPENSSL_NO_SRTP 1630 srtp_profiles = opt_arg(); 1631 #endif 1632 break; 1633 case OPT_KEYMATEXPORT: 1634 keymatexportlabel = opt_arg(); 1635 break; 1636 case OPT_KEYMATEXPORTLEN: 1637 keymatexportlen = atoi(opt_arg()); 1638 break; 1639 case OPT_ASYNC: 1640 async = 1; 1641 break; 1642 case OPT_MAX_SEND_FRAG: 1643 max_send_fragment = atoi(opt_arg()); 1644 break; 1645 case OPT_SPLIT_SEND_FRAG: 1646 split_send_fragment = atoi(opt_arg()); 1647 break; 1648 case OPT_MAX_PIPELINES: 1649 max_pipelines = atoi(opt_arg()); 1650 break; 1651 case OPT_READ_BUF: 1652 read_buf_len = atoi(opt_arg()); 1653 break; 1654 case OPT_KEYLOG_FILE: 1655 keylog_file = opt_arg(); 1656 break; 1657 case OPT_MAX_EARLY: 1658 max_early_data = atoi(opt_arg()); 1659 if (max_early_data < 0) { 1660 BIO_printf(bio_err, "Invalid value for max_early_data\n"); 1661 goto end; 1662 } 1663 break; 1664 case OPT_RECV_MAX_EARLY: 1665 recv_max_early_data = atoi(opt_arg()); 1666 if (recv_max_early_data < 0) { 1667 BIO_printf(bio_err, "Invalid value for recv_max_early_data\n"); 1668 goto end; 1669 } 1670 break; 1671 case OPT_EARLY_DATA: 1672 early_data = 1; 1673 if (max_early_data == -1) 1674 max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; 1675 break; 1676 case OPT_HTTP_SERVER_BINMODE: 1677 http_server_binmode = 1; 1678 break; 1679 case OPT_NOCANAMES: 1680 no_ca_names = 1; 1681 break; 1682 case OPT_KTLS: 1683 #ifndef OPENSSL_NO_KTLS 1684 enable_ktls = 1; 1685 #endif 1686 break; 1687 case OPT_SENDFILE: 1688 #ifndef OPENSSL_NO_KTLS 1689 use_sendfile = 1; 1690 #endif 1691 break; 1692 case OPT_USE_ZC_SENDFILE: 1693 #ifndef OPENSSL_NO_KTLS 1694 use_zc_sendfile = 1; 1695 #endif 1696 break; 1697 case OPT_IGNORE_UNEXPECTED_EOF: 1698 ignore_unexpected_eof = 1; 1699 break; 1700 case OPT_TFO: 1701 tfo = 1; 1702 break; 1703 case OPT_CERT_COMP: 1704 cert_comp = 1; 1705 break; 1706 case OPT_ENABLE_SERVER_RPK: 1707 enable_server_rpk = 1; 1708 break; 1709 case OPT_ENABLE_CLIENT_RPK: 1710 enable_client_rpk = 1; 1711 break; 1712 } 1713 } 1714 1715 /* No extra arguments. */ 1716 if (!opt_check_rest_arg(NULL)) 1717 goto opthelp; 1718 1719 if (!app_RAND_load()) 1720 goto end; 1721 1722 #ifndef OPENSSL_NO_NEXTPROTONEG 1723 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) { 1724 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n"); 1725 goto opthelp; 1726 } 1727 #endif 1728 #ifndef OPENSSL_NO_DTLS 1729 if (www && socket_type == SOCK_DGRAM) { 1730 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n"); 1731 goto end; 1732 } 1733 1734 if (dtlslisten && socket_type != SOCK_DGRAM) { 1735 BIO_printf(bio_err, "Can only use -listen with DTLS\n"); 1736 goto end; 1737 } 1738 1739 if (rev && socket_type == SOCK_DGRAM) { 1740 BIO_printf(bio_err, "Can't use -rev with DTLS\n"); 1741 goto end; 1742 } 1743 #endif 1744 1745 if (tfo && socket_type != SOCK_STREAM) { 1746 BIO_printf(bio_err, "Can only use -tfo with TLS\n"); 1747 goto end; 1748 } 1749 1750 if (stateless && socket_type != SOCK_STREAM) { 1751 BIO_printf(bio_err, "Can only use --stateless with TLS\n"); 1752 goto end; 1753 } 1754 1755 #ifdef AF_UNIX 1756 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) { 1757 BIO_printf(bio_err, 1758 "Can't use unix sockets and datagrams together\n"); 1759 goto end; 1760 } 1761 #endif 1762 if (early_data && rev) { 1763 BIO_printf(bio_err, 1764 "Can't use -early_data in combination with -rev\n"); 1765 goto end; 1766 } 1767 1768 #ifndef OPENSSL_NO_SCTP 1769 if (protocol == IPPROTO_SCTP) { 1770 if (socket_type != SOCK_DGRAM) { 1771 BIO_printf(bio_err, "Can't use -sctp without DTLS\n"); 1772 goto end; 1773 } 1774 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */ 1775 socket_type = SOCK_STREAM; 1776 } 1777 #endif 1778 1779 #ifndef OPENSSL_NO_KTLS 1780 if (use_zc_sendfile && !use_sendfile) { 1781 BIO_printf(bio_out, "Warning: -zerocopy_sendfile depends on -sendfile, enabling -sendfile now.\n"); 1782 use_sendfile = 1; 1783 } 1784 1785 if (use_sendfile && enable_ktls == 0) { 1786 BIO_printf(bio_out, "Warning: -sendfile depends on -ktls, enabling -ktls now.\n"); 1787 enable_ktls = 1; 1788 } 1789 1790 if (use_sendfile && www <= 1) { 1791 BIO_printf(bio_err, "Can't use -sendfile without -WWW or -HTTP\n"); 1792 goto end; 1793 } 1794 #endif 1795 1796 if (!app_passwd(passarg, dpassarg, &pass, &dpass)) { 1797 BIO_printf(bio_err, "Error getting password\n"); 1798 goto end; 1799 } 1800 1801 if (s_key_file == NULL) 1802 s_key_file = s_cert_file; 1803 1804 if (s_key_file2 == NULL) 1805 s_key_file2 = s_cert_file2; 1806 1807 if (!load_excert(&exc)) 1808 goto end; 1809 1810 if (nocert == 0) { 1811 s_key = load_key(s_key_file, s_key_format, 0, pass, engine, 1812 "server certificate private key"); 1813 if (s_key == NULL) 1814 goto end; 1815 1816 s_cert = load_cert_pass(s_cert_file, s_cert_format, 1, pass, 1817 "server certificate"); 1818 1819 if (s_cert == NULL) 1820 goto end; 1821 if (s_chain_file != NULL) { 1822 if (!load_certs(s_chain_file, 0, &s_chain, NULL, 1823 "server certificate chain")) 1824 goto end; 1825 } 1826 1827 if (tlsextcbp.servername != NULL) { 1828 s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine, 1829 "second server certificate private key"); 1830 if (s_key2 == NULL) 1831 goto end; 1832 1833 s_cert2 = load_cert_pass(s_cert_file2, s_cert_format, 1, pass, 1834 "second server certificate"); 1835 1836 if (s_cert2 == NULL) 1837 goto end; 1838 } 1839 } 1840 #if !defined(OPENSSL_NO_NEXTPROTONEG) 1841 if (next_proto_neg_in) { 1842 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in); 1843 if (next_proto.data == NULL) 1844 goto end; 1845 } 1846 #endif 1847 alpn_ctx.data = NULL; 1848 if (alpn_in) { 1849 alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in); 1850 if (alpn_ctx.data == NULL) 1851 goto end; 1852 } 1853 1854 if (crl_file != NULL) { 1855 X509_CRL *crl; 1856 crl = load_crl(crl_file, crl_format, 0, "CRL"); 1857 if (crl == NULL) 1858 goto end; 1859 crls = sk_X509_CRL_new_null(); 1860 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { 1861 BIO_puts(bio_err, "Error adding CRL\n"); 1862 ERR_print_errors(bio_err); 1863 X509_CRL_free(crl); 1864 goto end; 1865 } 1866 } 1867 1868 if (s_dcert_file != NULL) { 1869 1870 if (s_dkey_file == NULL) 1871 s_dkey_file = s_dcert_file; 1872 1873 s_dkey = load_key(s_dkey_file, s_dkey_format, 1874 0, dpass, engine, "second certificate private key"); 1875 if (s_dkey == NULL) 1876 goto end; 1877 1878 s_dcert = load_cert_pass(s_dcert_file, s_dcert_format, 1, dpass, 1879 "second server certificate"); 1880 1881 if (s_dcert == NULL) { 1882 ERR_print_errors(bio_err); 1883 goto end; 1884 } 1885 if (s_dchain_file != NULL) { 1886 if (!load_certs(s_dchain_file, 0, &s_dchain, NULL, 1887 "second server certificate chain")) 1888 goto end; 1889 } 1890 1891 } 1892 1893 if (bio_s_out == NULL) { 1894 if (s_quiet && !s_debug) { 1895 bio_s_out = BIO_new(BIO_s_null()); 1896 if (s_msg && bio_s_msg == NULL) { 1897 bio_s_msg = dup_bio_out(FORMAT_TEXT); 1898 if (bio_s_msg == NULL) { 1899 BIO_printf(bio_err, "Out of memory\n"); 1900 goto end; 1901 } 1902 } 1903 } else { 1904 bio_s_out = dup_bio_out(FORMAT_TEXT); 1905 } 1906 } 1907 1908 if (bio_s_out == NULL) 1909 goto end; 1910 1911 if (nocert) { 1912 s_cert_file = NULL; 1913 s_key_file = NULL; 1914 s_dcert_file = NULL; 1915 s_dkey_file = NULL; 1916 s_cert_file2 = NULL; 1917 s_key_file2 = NULL; 1918 } 1919 1920 ctx = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth); 1921 if (ctx == NULL) { 1922 ERR_print_errors(bio_err); 1923 goto end; 1924 } 1925 1926 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 1927 1928 if (sdebug) 1929 ssl_ctx_security_debug(ctx, sdebug); 1930 1931 if (!config_ctx(cctx, ssl_args, ctx)) 1932 goto end; 1933 1934 if (ssl_config) { 1935 if (SSL_CTX_config(ctx, ssl_config) == 0) { 1936 BIO_printf(bio_err, "Error using configuration \"%s\"\n", 1937 ssl_config); 1938 ERR_print_errors(bio_err); 1939 goto end; 1940 } 1941 } 1942 #ifndef OPENSSL_NO_SCTP 1943 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1) 1944 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG); 1945 #endif 1946 1947 if (min_version != 0 1948 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0) 1949 goto end; 1950 if (max_version != 0 1951 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0) 1952 goto end; 1953 1954 if (session_id_prefix) { 1955 if (strlen(session_id_prefix) >= 32) 1956 BIO_printf(bio_err, 1957 "warning: id_prefix is too long, only one new session will be possible\n"); 1958 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { 1959 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 1960 ERR_print_errors(bio_err); 1961 goto end; 1962 } 1963 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 1964 } 1965 if (exc != NULL) 1966 ssl_ctx_set_excert(ctx, exc); 1967 1968 if (state) 1969 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1970 if (no_cache) 1971 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); 1972 else if (ext_cache) 1973 init_session_cache_ctx(ctx); 1974 else 1975 SSL_CTX_sess_set_cache_size(ctx, 128); 1976 1977 if (async) { 1978 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); 1979 } 1980 1981 if (no_ca_names) { 1982 SSL_CTX_set_options(ctx, SSL_OP_DISABLE_TLSEXT_CA_NAMES); 1983 } 1984 1985 if (ignore_unexpected_eof) 1986 SSL_CTX_set_options(ctx, SSL_OP_IGNORE_UNEXPECTED_EOF); 1987 #ifndef OPENSSL_NO_KTLS 1988 if (enable_ktls) 1989 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS); 1990 if (use_zc_sendfile) 1991 SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS_TX_ZEROCOPY_SENDFILE); 1992 #endif 1993 1994 if (max_send_fragment > 0 1995 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) { 1996 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n", 1997 prog, max_send_fragment); 1998 goto end; 1999 } 2000 2001 if (split_send_fragment > 0 2002 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) { 2003 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n", 2004 prog, split_send_fragment); 2005 goto end; 2006 } 2007 if (max_pipelines > 0 2008 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) { 2009 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n", 2010 prog, max_pipelines); 2011 goto end; 2012 } 2013 2014 if (read_buf_len > 0) { 2015 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); 2016 } 2017 #ifndef OPENSSL_NO_SRTP 2018 if (srtp_profiles != NULL) { 2019 /* Returns 0 on success! */ 2020 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { 2021 BIO_printf(bio_err, "Error setting SRTP profile\n"); 2022 ERR_print_errors(bio_err); 2023 goto end; 2024 } 2025 } 2026 #endif 2027 2028 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath, 2029 CAstore, noCAstore)) { 2030 ERR_print_errors(bio_err); 2031 goto end; 2032 } 2033 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { 2034 BIO_printf(bio_err, "Error setting verify params\n"); 2035 ERR_print_errors(bio_err); 2036 goto end; 2037 } 2038 2039 ssl_ctx_add_crls(ctx, crls, 0); 2040 2041 if (!ssl_load_stores(ctx, 2042 vfyCApath, vfyCAfile, vfyCAstore, 2043 chCApath, chCAfile, chCAstore, 2044 crls, crl_download)) { 2045 BIO_printf(bio_err, "Error loading store locations\n"); 2046 ERR_print_errors(bio_err); 2047 goto end; 2048 } 2049 2050 if (s_cert2) { 2051 ctx2 = SSL_CTX_new_ex(app_get0_libctx(), app_get0_propq(), meth); 2052 if (ctx2 == NULL) { 2053 ERR_print_errors(bio_err); 2054 goto end; 2055 } 2056 } 2057 2058 if (ctx2 != NULL) { 2059 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); 2060 2061 if (sdebug) 2062 ssl_ctx_security_debug(ctx2, sdebug); 2063 2064 if (session_id_prefix) { 2065 if (strlen(session_id_prefix) >= 32) 2066 BIO_printf(bio_err, 2067 "warning: id_prefix is too long, only one new session will be possible\n"); 2068 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { 2069 BIO_printf(bio_err, "error setting 'id_prefix'\n"); 2070 ERR_print_errors(bio_err); 2071 goto end; 2072 } 2073 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); 2074 } 2075 if (exc != NULL) 2076 ssl_ctx_set_excert(ctx2, exc); 2077 2078 if (state) 2079 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); 2080 2081 if (no_cache) 2082 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); 2083 else if (ext_cache) 2084 init_session_cache_ctx(ctx2); 2085 else 2086 SSL_CTX_sess_set_cache_size(ctx2, 128); 2087 2088 if (async) 2089 SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC); 2090 2091 if (!ctx_set_verify_locations(ctx2, CAfile, noCAfile, CApath, 2092 noCApath, CAstore, noCAstore)) { 2093 ERR_print_errors(bio_err); 2094 goto end; 2095 } 2096 if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) { 2097 BIO_printf(bio_err, "Error setting verify params\n"); 2098 ERR_print_errors(bio_err); 2099 goto end; 2100 } 2101 2102 ssl_ctx_add_crls(ctx2, crls, 0); 2103 if (!config_ctx(cctx, ssl_args, ctx2)) 2104 goto end; 2105 } 2106 #ifndef OPENSSL_NO_NEXTPROTONEG 2107 if (next_proto.data) 2108 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, 2109 &next_proto); 2110 #endif 2111 if (alpn_ctx.data) 2112 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); 2113 2114 if (!no_dhe) { 2115 EVP_PKEY *dhpkey = NULL; 2116 2117 if (dhfile != NULL) 2118 dhpkey = load_keyparams(dhfile, FORMAT_UNDEF, 0, "DH", "DH parameters"); 2119 else if (s_cert_file != NULL) 2120 dhpkey = load_keyparams_suppress(s_cert_file, FORMAT_UNDEF, 0, "DH", 2121 "DH parameters", 1); 2122 2123 if (dhpkey != NULL) { 2124 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 2125 } else { 2126 BIO_printf(bio_s_out, "Using default temp DH parameters\n"); 2127 } 2128 (void)BIO_flush(bio_s_out); 2129 2130 if (dhpkey == NULL) { 2131 SSL_CTX_set_dh_auto(ctx, 1); 2132 } else { 2133 /* 2134 * We need 2 references: one for use by ctx and one for use by 2135 * ctx2 2136 */ 2137 if (!EVP_PKEY_up_ref(dhpkey)) { 2138 EVP_PKEY_free(dhpkey); 2139 goto end; 2140 } 2141 if (!SSL_CTX_set0_tmp_dh_pkey(ctx, dhpkey)) { 2142 BIO_puts(bio_err, "Error setting temp DH parameters\n"); 2143 ERR_print_errors(bio_err); 2144 /* Free 2 references */ 2145 EVP_PKEY_free(dhpkey); 2146 EVP_PKEY_free(dhpkey); 2147 goto end; 2148 } 2149 } 2150 2151 if (ctx2 != NULL) { 2152 if (dhfile != NULL) { 2153 EVP_PKEY *dhpkey2 = load_keyparams_suppress(s_cert_file2, 2154 FORMAT_UNDEF, 2155 0, "DH", 2156 "DH parameters", 1); 2157 2158 if (dhpkey2 != NULL) { 2159 BIO_printf(bio_s_out, "Setting temp DH parameters\n"); 2160 (void)BIO_flush(bio_s_out); 2161 2162 EVP_PKEY_free(dhpkey); 2163 dhpkey = dhpkey2; 2164 } 2165 } 2166 if (dhpkey == NULL) { 2167 SSL_CTX_set_dh_auto(ctx2, 1); 2168 } else if (!SSL_CTX_set0_tmp_dh_pkey(ctx2, dhpkey)) { 2169 BIO_puts(bio_err, "Error setting temp DH parameters\n"); 2170 ERR_print_errors(bio_err); 2171 EVP_PKEY_free(dhpkey); 2172 goto end; 2173 } 2174 dhpkey = NULL; 2175 } 2176 EVP_PKEY_free(dhpkey); 2177 } 2178 2179 if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain)) 2180 goto end; 2181 2182 if (s_serverinfo_file != NULL 2183 && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) { 2184 ERR_print_errors(bio_err); 2185 goto end; 2186 } 2187 2188 if (ctx2 != NULL 2189 && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain)) 2190 goto end; 2191 2192 if (s_dcert != NULL) { 2193 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain)) 2194 goto end; 2195 } 2196 2197 if (no_resume_ephemeral) { 2198 SSL_CTX_set_not_resumable_session_callback(ctx, 2199 not_resumable_sess_cb); 2200 2201 if (ctx2 != NULL) 2202 SSL_CTX_set_not_resumable_session_callback(ctx2, 2203 not_resumable_sess_cb); 2204 } 2205 #ifndef OPENSSL_NO_PSK 2206 if (psk_key != NULL) { 2207 if (s_debug) 2208 BIO_printf(bio_s_out, "PSK key given, setting server callback\n"); 2209 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb); 2210 } 2211 2212 if (psk_identity_hint != NULL) { 2213 if (min_version == TLS1_3_VERSION) { 2214 BIO_printf(bio_s_out, "PSK warning: there is NO identity hint in TLSv1.3\n"); 2215 } else { 2216 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) { 2217 BIO_printf(bio_err, "error setting PSK identity hint to context\n"); 2218 ERR_print_errors(bio_err); 2219 goto end; 2220 } 2221 } 2222 } 2223 #endif 2224 if (psksessf != NULL) { 2225 BIO *stmp = BIO_new_file(psksessf, "r"); 2226 2227 if (stmp == NULL) { 2228 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf); 2229 ERR_print_errors(bio_err); 2230 goto end; 2231 } 2232 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 2233 BIO_free(stmp); 2234 if (psksess == NULL) { 2235 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf); 2236 ERR_print_errors(bio_err); 2237 goto end; 2238 } 2239 2240 } 2241 2242 if (psk_key != NULL || psksess != NULL) 2243 SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb); 2244 2245 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); 2246 if (!SSL_CTX_set_session_id_context(ctx, 2247 (void *)&s_server_session_id_context, 2248 sizeof(s_server_session_id_context))) { 2249 BIO_printf(bio_err, "error setting session id context\n"); 2250 ERR_print_errors(bio_err); 2251 goto end; 2252 } 2253 2254 /* Set DTLS cookie generation and verification callbacks */ 2255 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); 2256 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); 2257 2258 /* Set TLS1.3 cookie generation and verification callbacks */ 2259 SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback); 2260 SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback); 2261 2262 if (ctx2 != NULL) { 2263 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); 2264 if (!SSL_CTX_set_session_id_context(ctx2, 2265 (void *)&s_server_session_id_context, 2266 sizeof(s_server_session_id_context))) { 2267 BIO_printf(bio_err, "error setting session id context\n"); 2268 ERR_print_errors(bio_err); 2269 goto end; 2270 } 2271 tlsextcbp.biodebug = bio_s_out; 2272 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); 2273 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); 2274 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 2275 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 2276 } 2277 2278 #ifndef OPENSSL_NO_SRP 2279 if (srp_verifier_file != NULL) { 2280 if (!set_up_srp_verifier_file(ctx, &srp_callback_parm, srpuserseed, 2281 srp_verifier_file)) 2282 goto end; 2283 } else 2284 #endif 2285 if (CAfile != NULL) { 2286 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); 2287 2288 if (ctx2) 2289 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); 2290 } 2291 #ifndef OPENSSL_NO_OCSP 2292 if (s_tlsextstatus) { 2293 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); 2294 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); 2295 if (ctx2) { 2296 SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb); 2297 SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp); 2298 } 2299 } 2300 #endif 2301 if (set_keylog_file(ctx, keylog_file)) 2302 goto end; 2303 2304 if (max_early_data >= 0) 2305 SSL_CTX_set_max_early_data(ctx, max_early_data); 2306 if (recv_max_early_data >= 0) 2307 SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data); 2308 2309 if (cert_comp) { 2310 BIO_printf(bio_s_out, "Compressing certificates\n"); 2311 if (!SSL_CTX_compress_certs(ctx, 0)) 2312 BIO_printf(bio_s_out, "Error compressing certs on ctx\n"); 2313 if (ctx2 != NULL && !SSL_CTX_compress_certs(ctx2, 0)) 2314 BIO_printf(bio_s_out, "Error compressing certs on ctx2\n"); 2315 } 2316 if (enable_server_rpk) 2317 if (!SSL_CTX_set1_server_cert_type(ctx, cert_type_rpk, sizeof(cert_type_rpk))) { 2318 BIO_printf(bio_s_out, "Error setting server certificate types\n"); 2319 goto end; 2320 } 2321 if (enable_client_rpk) 2322 if (!SSL_CTX_set1_client_cert_type(ctx, cert_type_rpk, sizeof(cert_type_rpk))) { 2323 BIO_printf(bio_s_out, "Error setting server certificate types\n"); 2324 goto end; 2325 } 2326 2327 if (rev) 2328 server_cb = rev_body; 2329 else if (www) 2330 server_cb = www_body; 2331 else 2332 server_cb = sv_body; 2333 #ifdef AF_UNIX 2334 if (socket_family == AF_UNIX 2335 && unlink_unix_path) 2336 unlink(host); 2337 #endif 2338 if (tfo) 2339 BIO_printf(bio_s_out, "Listening for TFO\n"); 2340 do_server(&accept_socket, host, port, socket_family, socket_type, protocol, 2341 server_cb, context, naccept, bio_s_out, tfo); 2342 print_stats(bio_s_out, ctx); 2343 ret = 0; 2344 end: 2345 SSL_CTX_free(ctx); 2346 SSL_SESSION_free(psksess); 2347 set_keylog_file(NULL, NULL); 2348 X509_free(s_cert); 2349 sk_X509_CRL_pop_free(crls, X509_CRL_free); 2350 X509_free(s_dcert); 2351 EVP_PKEY_free(s_key); 2352 EVP_PKEY_free(s_dkey); 2353 OSSL_STACK_OF_X509_free(s_chain); 2354 OSSL_STACK_OF_X509_free(s_dchain); 2355 OPENSSL_free(pass); 2356 OPENSSL_free(dpass); 2357 OPENSSL_free(host); 2358 OPENSSL_free(port); 2359 X509_VERIFY_PARAM_free(vpm); 2360 free_sessions(); 2361 OPENSSL_free(tlscstatp.host); 2362 OPENSSL_free(tlscstatp.port); 2363 OPENSSL_free(tlscstatp.path); 2364 SSL_CTX_free(ctx2); 2365 X509_free(s_cert2); 2366 EVP_PKEY_free(s_key2); 2367 #ifndef OPENSSL_NO_NEXTPROTONEG 2368 OPENSSL_free(next_proto.data); 2369 #endif 2370 OPENSSL_free(alpn_ctx.data); 2371 ssl_excert_free(exc); 2372 sk_OPENSSL_STRING_free(ssl_args); 2373 SSL_CONF_CTX_free(cctx); 2374 release_engine(engine); 2375 BIO_free(bio_s_out); 2376 bio_s_out = NULL; 2377 BIO_free(bio_s_msg); 2378 bio_s_msg = NULL; 2379 #ifdef CHARSET_EBCDIC 2380 BIO_meth_free(methods_ebcdic); 2381 #endif 2382 return ret; 2383 } 2384 2385 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx) 2386 { 2387 BIO_printf(bio, "%4ld items in the session cache\n", 2388 SSL_CTX_sess_number(ssl_ctx)); 2389 BIO_printf(bio, "%4ld client connects (SSL_connect())\n", 2390 SSL_CTX_sess_connect(ssl_ctx)); 2391 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", 2392 SSL_CTX_sess_connect_renegotiate(ssl_ctx)); 2393 BIO_printf(bio, "%4ld client connects that finished\n", 2394 SSL_CTX_sess_connect_good(ssl_ctx)); 2395 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", 2396 SSL_CTX_sess_accept(ssl_ctx)); 2397 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", 2398 SSL_CTX_sess_accept_renegotiate(ssl_ctx)); 2399 BIO_printf(bio, "%4ld server accepts that finished\n", 2400 SSL_CTX_sess_accept_good(ssl_ctx)); 2401 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); 2402 BIO_printf(bio, "%4ld session cache misses\n", 2403 SSL_CTX_sess_misses(ssl_ctx)); 2404 BIO_printf(bio, "%4ld session cache timeouts\n", 2405 SSL_CTX_sess_timeouts(ssl_ctx)); 2406 BIO_printf(bio, "%4ld callback cache hits\n", 2407 SSL_CTX_sess_cb_hits(ssl_ctx)); 2408 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", 2409 SSL_CTX_sess_cache_full(ssl_ctx), 2410 SSL_CTX_sess_get_cache_size(ssl_ctx)); 2411 } 2412 2413 static long int count_reads_callback(BIO *bio, int cmd, const char *argp, size_t len, 2414 int argi, long argl, int ret, size_t *processed) 2415 { 2416 unsigned int *p_counter = (unsigned int *)BIO_get_callback_arg(bio); 2417 2418 switch (cmd) { 2419 case BIO_CB_READ: /* No break here */ 2420 case BIO_CB_GETS: 2421 if (p_counter != NULL) 2422 ++*p_counter; 2423 break; 2424 default: 2425 break; 2426 } 2427 2428 if (s_debug) { 2429 BIO_set_callback_arg(bio, (char *)bio_s_out); 2430 ret = (int)bio_dump_callback(bio, cmd, argp, len, argi, argl, ret, processed); 2431 BIO_set_callback_arg(bio, (char *)p_counter); 2432 } 2433 2434 return ret; 2435 } 2436 2437 static int sv_body(int s, int stype, int prot, unsigned char *context) 2438 { 2439 char *buf = NULL; 2440 fd_set readfds; 2441 int ret = 1, width; 2442 int k; 2443 unsigned long l; 2444 SSL *con = NULL; 2445 BIO *sbio; 2446 struct timeval timeout; 2447 #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)) 2448 struct timeval *timeoutp; 2449 #endif 2450 #ifndef OPENSSL_NO_DTLS 2451 # ifndef OPENSSL_NO_SCTP 2452 int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP); 2453 # else 2454 int isdtls = (stype == SOCK_DGRAM); 2455 # endif 2456 #endif 2457 2458 buf = app_malloc(bufsize, "server buffer"); 2459 if (s_nbio) { 2460 if (!BIO_socket_nbio(s, 1)) 2461 ERR_print_errors(bio_err); 2462 else if (!s_quiet) 2463 BIO_printf(bio_err, "Turned on non blocking io\n"); 2464 } 2465 2466 con = SSL_new(ctx); 2467 if (con == NULL) { 2468 ret = -1; 2469 goto err; 2470 } 2471 2472 if (s_tlsextdebug) { 2473 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2474 SSL_set_tlsext_debug_arg(con, bio_s_out); 2475 } 2476 2477 if (context != NULL 2478 && !SSL_set_session_id_context(con, context, 2479 strlen((char *)context))) { 2480 BIO_printf(bio_err, "Error setting session id context\n"); 2481 ret = -1; 2482 goto err; 2483 } 2484 2485 if (!SSL_clear(con)) { 2486 BIO_printf(bio_err, "Error clearing SSL connection\n"); 2487 ret = -1; 2488 goto err; 2489 } 2490 #ifndef OPENSSL_NO_DTLS 2491 if (isdtls) { 2492 # ifndef OPENSSL_NO_SCTP 2493 if (prot == IPPROTO_SCTP) 2494 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE); 2495 else 2496 # endif 2497 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 2498 if (sbio == NULL) { 2499 BIO_printf(bio_err, "Unable to create BIO\n"); 2500 ERR_print_errors(bio_err); 2501 goto err; 2502 } 2503 2504 if (enable_timeouts) { 2505 timeout.tv_sec = 0; 2506 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 2507 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 2508 2509 timeout.tv_sec = 0; 2510 timeout.tv_usec = DGRAM_SND_TIMEOUT; 2511 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 2512 } 2513 2514 if (socket_mtu) { 2515 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 2516 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 2517 DTLS_get_link_min_mtu(con)); 2518 ret = -1; 2519 BIO_free(sbio); 2520 goto err; 2521 } 2522 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 2523 if (!DTLS_set_link_mtu(con, socket_mtu)) { 2524 BIO_printf(bio_err, "Failed to set MTU\n"); 2525 ret = -1; 2526 BIO_free(sbio); 2527 goto err; 2528 } 2529 } else 2530 /* want to do MTU discovery */ 2531 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 2532 2533 # ifndef OPENSSL_NO_SCTP 2534 if (prot != IPPROTO_SCTP) 2535 # endif 2536 /* Turn on cookie exchange. Not necessary for SCTP */ 2537 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); 2538 } else 2539 #endif 2540 sbio = BIO_new_socket(s, BIO_NOCLOSE); 2541 2542 if (sbio == NULL) { 2543 BIO_printf(bio_err, "Unable to create BIO\n"); 2544 ERR_print_errors(bio_err); 2545 goto err; 2546 } 2547 2548 if (s_nbio_test) { 2549 BIO *test; 2550 2551 test = BIO_new(BIO_f_nbio_test()); 2552 if (test == NULL) { 2553 BIO_printf(bio_err, "Unable to create BIO\n"); 2554 ret = -1; 2555 BIO_free(sbio); 2556 goto err; 2557 } 2558 sbio = BIO_push(test, sbio); 2559 } 2560 2561 SSL_set_bio(con, sbio, sbio); 2562 SSL_set_accept_state(con); 2563 /* SSL_set_fd(con,s); */ 2564 2565 BIO_set_callback_ex(SSL_get_rbio(con), count_reads_callback); 2566 if (s_msg) { 2567 #ifndef OPENSSL_NO_SSL_TRACE 2568 if (s_msg == 2) 2569 SSL_set_msg_callback(con, SSL_trace); 2570 else 2571 #endif 2572 SSL_set_msg_callback(con, msg_cb); 2573 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 2574 } 2575 2576 if (s_tlsextdebug) { 2577 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2578 SSL_set_tlsext_debug_arg(con, bio_s_out); 2579 } 2580 2581 if (early_data) { 2582 int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR; 2583 size_t readbytes; 2584 2585 while (edret != SSL_READ_EARLY_DATA_FINISH) { 2586 for (;;) { 2587 edret = SSL_read_early_data(con, buf, bufsize, &readbytes); 2588 if (edret != SSL_READ_EARLY_DATA_ERROR) 2589 break; 2590 2591 switch (SSL_get_error(con, 0)) { 2592 case SSL_ERROR_WANT_WRITE: 2593 case SSL_ERROR_WANT_ASYNC: 2594 case SSL_ERROR_WANT_READ: 2595 /* Just keep trying - busy waiting */ 2596 continue; 2597 default: 2598 BIO_printf(bio_err, "Error reading early data\n"); 2599 ERR_print_errors(bio_err); 2600 goto err; 2601 } 2602 } 2603 if (readbytes > 0) { 2604 if (write_header) { 2605 BIO_printf(bio_s_out, "Early data received:\n"); 2606 write_header = 0; 2607 } 2608 raw_write_stdout(buf, (unsigned int)readbytes); 2609 (void)BIO_flush(bio_s_out); 2610 } 2611 } 2612 if (write_header) { 2613 if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT) 2614 BIO_printf(bio_s_out, "No early data received\n"); 2615 else 2616 BIO_printf(bio_s_out, "Early data was rejected\n"); 2617 } else { 2618 BIO_printf(bio_s_out, "\nEnd of early data\n"); 2619 } 2620 if (SSL_is_init_finished(con)) 2621 print_connection_info(con); 2622 } 2623 2624 if (fileno_stdin() > s) 2625 width = fileno_stdin() + 1; 2626 else 2627 width = s + 1; 2628 for (;;) { 2629 int i; 2630 int read_from_terminal; 2631 int read_from_sslcon; 2632 2633 read_from_terminal = 0; 2634 read_from_sslcon = SSL_has_pending(con) 2635 || (async && SSL_waiting_for_async(con)); 2636 2637 if (!read_from_sslcon) { 2638 FD_ZERO(&readfds); 2639 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 2640 openssl_fdset(fileno_stdin(), &readfds); 2641 #endif 2642 openssl_fdset(s, &readfds); 2643 /* 2644 * Note: under VMS with SOCKETSHR the second parameter is 2645 * currently of type (int *) whereas under other systems it is 2646 * (void *) if you don't have a cast it will choke the compiler: 2647 * if you do have a cast then you can either go for (int *) or 2648 * (void *). 2649 */ 2650 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2651 /* 2652 * Under DOS (non-djgpp) and Windows we can't select on stdin: 2653 * only on sockets. As a workaround we timeout the select every 2654 * second and check for any keypress. In a proper Windows 2655 * application we wouldn't do this because it is inefficient. 2656 */ 2657 timeout.tv_sec = 1; 2658 timeout.tv_usec = 0; 2659 i = select(width, (void *)&readfds, NULL, NULL, &timeout); 2660 if (has_stdin_waiting()) 2661 read_from_terminal = 1; 2662 if ((i < 0) || (!i && !read_from_terminal)) 2663 continue; 2664 #else 2665 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout)) 2666 timeoutp = &timeout; 2667 else 2668 timeoutp = NULL; 2669 2670 i = select(width, (void *)&readfds, NULL, NULL, timeoutp); 2671 2672 if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0) 2673 BIO_printf(bio_err, "TIMEOUT occurred\n"); 2674 2675 if (i <= 0) 2676 continue; 2677 if (FD_ISSET(fileno_stdin(), &readfds)) 2678 read_from_terminal = 1; 2679 #endif 2680 if (FD_ISSET(s, &readfds)) 2681 read_from_sslcon = 1; 2682 } 2683 if (read_from_terminal) { 2684 if (s_crlf) { 2685 int j, lf_num; 2686 2687 i = raw_read_stdin(buf, bufsize / 2); 2688 lf_num = 0; 2689 /* both loops are skipped when i <= 0 */ 2690 for (j = 0; j < i; j++) 2691 if (buf[j] == '\n') 2692 lf_num++; 2693 for (j = i - 1; j >= 0; j--) { 2694 buf[j + lf_num] = buf[j]; 2695 if (buf[j] == '\n') { 2696 lf_num--; 2697 i++; 2698 buf[j + lf_num] = '\r'; 2699 } 2700 } 2701 assert(lf_num == 0); 2702 } else { 2703 i = raw_read_stdin(buf, bufsize); 2704 } 2705 2706 if (!s_quiet && !s_brief) { 2707 if ((i <= 0) || (buf[0] == 'Q')) { 2708 BIO_printf(bio_s_out, "DONE\n"); 2709 (void)BIO_flush(bio_s_out); 2710 BIO_closesocket(s); 2711 close_accept_socket(); 2712 ret = -11; 2713 goto err; 2714 } 2715 if ((i <= 0) || (buf[0] == 'q')) { 2716 BIO_printf(bio_s_out, "DONE\n"); 2717 (void)BIO_flush(bio_s_out); 2718 if (SSL_version(con) != DTLS1_VERSION) 2719 BIO_closesocket(s); 2720 /* 2721 * close_accept_socket(); ret= -11; 2722 */ 2723 goto err; 2724 } 2725 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2726 SSL_renegotiate(con); 2727 i = SSL_do_handshake(con); 2728 printf("SSL_do_handshake -> %d\n", i); 2729 continue; 2730 } 2731 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2732 SSL_set_verify(con, 2733 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, 2734 NULL); 2735 SSL_renegotiate(con); 2736 i = SSL_do_handshake(con); 2737 printf("SSL_do_handshake -> %d\n", i); 2738 continue; 2739 } 2740 if ((buf[0] == 'K' || buf[0] == 'k') 2741 && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2742 SSL_key_update(con, buf[0] == 'K' ? 2743 SSL_KEY_UPDATE_REQUESTED 2744 : SSL_KEY_UPDATE_NOT_REQUESTED); 2745 i = SSL_do_handshake(con); 2746 printf("SSL_do_handshake -> %d\n", i); 2747 continue; 2748 } 2749 if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) { 2750 SSL_set_verify(con, SSL_VERIFY_PEER, NULL); 2751 i = SSL_verify_client_post_handshake(con); 2752 if (i == 0) { 2753 printf("Failed to initiate request\n"); 2754 ERR_print_errors(bio_err); 2755 } else { 2756 i = SSL_do_handshake(con); 2757 printf("SSL_do_handshake -> %d\n", i); 2758 } 2759 continue; 2760 } 2761 if (buf[0] == 'P') { 2762 static const char str[] = "Lets print some clear text\n"; 2763 BIO_write(SSL_get_wbio(con), str, sizeof(str) -1); 2764 } 2765 if (buf[0] == 'S') { 2766 print_stats(bio_s_out, SSL_get_SSL_CTX(con)); 2767 } 2768 } 2769 #ifdef CHARSET_EBCDIC 2770 ebcdic2ascii(buf, buf, i); 2771 #endif 2772 l = k = 0; 2773 for (;;) { 2774 /* should do a select for the write */ 2775 #ifdef RENEG 2776 static count = 0; 2777 if (++count == 100) { 2778 count = 0; 2779 SSL_renegotiate(con); 2780 } 2781 #endif 2782 k = SSL_write(con, &(buf[l]), (unsigned int)i); 2783 #ifndef OPENSSL_NO_SRP 2784 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) { 2785 BIO_printf(bio_s_out, "LOOKUP renego during write\n"); 2786 2787 lookup_srp_user(&srp_callback_parm, bio_s_out); 2788 2789 k = SSL_write(con, &(buf[l]), (unsigned int)i); 2790 } 2791 #endif 2792 switch (SSL_get_error(con, k)) { 2793 case SSL_ERROR_NONE: 2794 break; 2795 case SSL_ERROR_WANT_ASYNC: 2796 BIO_printf(bio_s_out, "Write BLOCK (Async)\n"); 2797 (void)BIO_flush(bio_s_out); 2798 wait_for_async(con); 2799 break; 2800 case SSL_ERROR_WANT_WRITE: 2801 case SSL_ERROR_WANT_READ: 2802 case SSL_ERROR_WANT_X509_LOOKUP: 2803 BIO_printf(bio_s_out, "Write BLOCK\n"); 2804 (void)BIO_flush(bio_s_out); 2805 break; 2806 case SSL_ERROR_WANT_ASYNC_JOB: 2807 /* 2808 * This shouldn't ever happen in s_server. Treat as an error 2809 */ 2810 case SSL_ERROR_SYSCALL: 2811 case SSL_ERROR_SSL: 2812 BIO_printf(bio_s_out, "ERROR\n"); 2813 (void)BIO_flush(bio_s_out); 2814 ERR_print_errors(bio_err); 2815 ret = 1; 2816 goto err; 2817 /* break; */ 2818 case SSL_ERROR_ZERO_RETURN: 2819 BIO_printf(bio_s_out, "DONE\n"); 2820 (void)BIO_flush(bio_s_out); 2821 ret = 1; 2822 goto err; 2823 } 2824 if (k > 0) { 2825 l += k; 2826 i -= k; 2827 } 2828 if (i <= 0) 2829 break; 2830 } 2831 } 2832 if (read_from_sslcon) { 2833 /* 2834 * init_ssl_connection handles all async events itself so if we're 2835 * waiting for async then we shouldn't go back into 2836 * init_ssl_connection 2837 */ 2838 if ((!async || !SSL_waiting_for_async(con)) 2839 && !SSL_is_init_finished(con)) { 2840 /* 2841 * Count number of reads during init_ssl_connection. 2842 * It helps us to distinguish configuration errors from errors 2843 * caused by a client. 2844 */ 2845 unsigned int read_counter = 0; 2846 2847 BIO_set_callback_arg(SSL_get_rbio(con), (char *)&read_counter); 2848 i = init_ssl_connection(con); 2849 BIO_set_callback_arg(SSL_get_rbio(con), NULL); 2850 2851 /* 2852 * If initialization fails without reads, then 2853 * there was a fatal error in configuration. 2854 */ 2855 if (i <= 0 && read_counter == 0) { 2856 ret = -1; 2857 goto err; 2858 } 2859 if (i < 0) { 2860 ret = 0; 2861 goto err; 2862 } else if (i == 0) { 2863 ret = 1; 2864 goto err; 2865 } 2866 } else { 2867 again: 2868 i = SSL_read(con, (char *)buf, bufsize); 2869 #ifndef OPENSSL_NO_SRP 2870 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { 2871 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 2872 2873 lookup_srp_user(&srp_callback_parm, bio_s_out); 2874 2875 i = SSL_read(con, (char *)buf, bufsize); 2876 } 2877 #endif 2878 switch (SSL_get_error(con, i)) { 2879 case SSL_ERROR_NONE: 2880 #ifdef CHARSET_EBCDIC 2881 ascii2ebcdic(buf, buf, i); 2882 #endif 2883 raw_write_stdout(buf, (unsigned int)i); 2884 (void)BIO_flush(bio_s_out); 2885 if (SSL_has_pending(con)) 2886 goto again; 2887 break; 2888 case SSL_ERROR_WANT_ASYNC: 2889 BIO_printf(bio_s_out, "Read BLOCK (Async)\n"); 2890 (void)BIO_flush(bio_s_out); 2891 wait_for_async(con); 2892 break; 2893 case SSL_ERROR_WANT_WRITE: 2894 case SSL_ERROR_WANT_READ: 2895 BIO_printf(bio_s_out, "Read BLOCK\n"); 2896 (void)BIO_flush(bio_s_out); 2897 break; 2898 case SSL_ERROR_WANT_ASYNC_JOB: 2899 /* 2900 * This shouldn't ever happen in s_server. Treat as an error 2901 */ 2902 case SSL_ERROR_SYSCALL: 2903 case SSL_ERROR_SSL: 2904 BIO_printf(bio_s_out, "ERROR\n"); 2905 (void)BIO_flush(bio_s_out); 2906 ERR_print_errors(bio_err); 2907 ret = 1; 2908 goto err; 2909 case SSL_ERROR_ZERO_RETURN: 2910 BIO_printf(bio_s_out, "DONE\n"); 2911 (void)BIO_flush(bio_s_out); 2912 ret = 1; 2913 goto err; 2914 } 2915 } 2916 } 2917 } 2918 err: 2919 if (con != NULL) { 2920 BIO_printf(bio_s_out, "shutting down SSL\n"); 2921 do_ssl_shutdown(con); 2922 SSL_free(con); 2923 } 2924 BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); 2925 OPENSSL_clear_free(buf, bufsize); 2926 return ret; 2927 } 2928 2929 static void close_accept_socket(void) 2930 { 2931 BIO_printf(bio_err, "shutdown accept socket\n"); 2932 if (accept_socket >= 0) { 2933 BIO_closesocket(accept_socket); 2934 } 2935 } 2936 2937 static int is_retryable(SSL *con, int i) 2938 { 2939 int err = SSL_get_error(con, i); 2940 2941 /* If it's not a fatal error, it must be retryable */ 2942 return (err != SSL_ERROR_SSL) 2943 && (err != SSL_ERROR_SYSCALL) 2944 && (err != SSL_ERROR_ZERO_RETURN); 2945 } 2946 2947 static int init_ssl_connection(SSL *con) 2948 { 2949 int i; 2950 long verify_err; 2951 int retry = 0; 2952 2953 if (dtlslisten || stateless) { 2954 BIO_ADDR *client = NULL; 2955 2956 if (dtlslisten) { 2957 if ((client = BIO_ADDR_new()) == NULL) { 2958 BIO_printf(bio_err, "ERROR - memory\n"); 2959 return 0; 2960 } 2961 i = DTLSv1_listen(con, client); 2962 } else { 2963 i = SSL_stateless(con); 2964 } 2965 if (i > 0) { 2966 BIO *wbio; 2967 int fd = -1; 2968 2969 if (dtlslisten) { 2970 wbio = SSL_get_wbio(con); 2971 if (wbio) { 2972 BIO_get_fd(wbio, &fd); 2973 } 2974 2975 if (!wbio || BIO_connect(fd, client, 0) == 0) { 2976 BIO_printf(bio_err, "ERROR - unable to connect\n"); 2977 BIO_ADDR_free(client); 2978 return 0; 2979 } 2980 2981 (void)BIO_ctrl_set_connected(wbio, client); 2982 BIO_ADDR_free(client); 2983 dtlslisten = 0; 2984 } else { 2985 stateless = 0; 2986 } 2987 i = SSL_accept(con); 2988 } else { 2989 BIO_ADDR_free(client); 2990 } 2991 } else { 2992 do { 2993 i = SSL_accept(con); 2994 2995 if (i <= 0) 2996 retry = is_retryable(con, i); 2997 #ifdef CERT_CB_TEST_RETRY 2998 { 2999 while (i <= 0 3000 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP 3001 && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) { 3002 BIO_printf(bio_err, 3003 "LOOKUP from certificate callback during accept\n"); 3004 i = SSL_accept(con); 3005 if (i <= 0) 3006 retry = is_retryable(con, i); 3007 } 3008 } 3009 #endif 3010 3011 #ifndef OPENSSL_NO_SRP 3012 while (i <= 0 3013 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { 3014 BIO_printf(bio_s_out, "LOOKUP during accept %s\n", 3015 srp_callback_parm.login); 3016 3017 lookup_srp_user(&srp_callback_parm, bio_s_out); 3018 3019 i = SSL_accept(con); 3020 if (i <= 0) 3021 retry = is_retryable(con, i); 3022 } 3023 #endif 3024 } while (i < 0 && SSL_waiting_for_async(con)); 3025 } 3026 3027 if (i <= 0) { 3028 if (((dtlslisten || stateless) && i == 0) 3029 || (!dtlslisten && !stateless && retry)) { 3030 BIO_printf(bio_s_out, "DELAY\n"); 3031 return 1; 3032 } 3033 3034 BIO_printf(bio_err, "ERROR\n"); 3035 3036 verify_err = SSL_get_verify_result(con); 3037 if (verify_err != X509_V_OK) { 3038 BIO_printf(bio_err, "verify error:%s\n", 3039 X509_verify_cert_error_string(verify_err)); 3040 } 3041 /* Always print any error messages */ 3042 ERR_print_errors(bio_err); 3043 return 0; 3044 } 3045 3046 print_connection_info(con); 3047 return 1; 3048 } 3049 3050 static void print_connection_info(SSL *con) 3051 { 3052 const char *str; 3053 X509 *peer; 3054 char buf[BUFSIZ]; 3055 #if !defined(OPENSSL_NO_NEXTPROTONEG) 3056 const unsigned char *next_proto_neg; 3057 unsigned next_proto_neg_len; 3058 #endif 3059 unsigned char *exportedkeymat; 3060 int i; 3061 3062 if (s_brief) 3063 print_ssl_summary(con); 3064 3065 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); 3066 3067 peer = SSL_get0_peer_certificate(con); 3068 if (peer != NULL) { 3069 BIO_printf(bio_s_out, "Client certificate\n"); 3070 PEM_write_bio_X509(bio_s_out, peer); 3071 dump_cert_text(bio_s_out, peer); 3072 peer = NULL; 3073 } 3074 /* Only display RPK information if configured */ 3075 if (SSL_get_negotiated_server_cert_type(con) == TLSEXT_cert_type_rpk) 3076 BIO_printf(bio_s_out, "Server-to-client raw public key negotiated\n"); 3077 if (SSL_get_negotiated_client_cert_type(con) == TLSEXT_cert_type_rpk) 3078 BIO_printf(bio_s_out, "Client-to-server raw public key negotiated\n"); 3079 if (enable_client_rpk) { 3080 EVP_PKEY *client_rpk = SSL_get0_peer_rpk(con); 3081 3082 if (client_rpk != NULL) { 3083 BIO_printf(bio_s_out, "Client raw public key\n"); 3084 EVP_PKEY_print_public(bio_s_out, client_rpk, 2, NULL); 3085 } 3086 } 3087 3088 if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL) 3089 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); 3090 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); 3091 ssl_print_sigalgs(bio_s_out, con); 3092 #ifndef OPENSSL_NO_EC 3093 ssl_print_point_formats(bio_s_out, con); 3094 ssl_print_groups(bio_s_out, con, 0); 3095 #endif 3096 print_ca_names(bio_s_out, con); 3097 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); 3098 3099 #if !defined(OPENSSL_NO_NEXTPROTONEG) 3100 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len); 3101 if (next_proto_neg) { 3102 BIO_printf(bio_s_out, "NEXTPROTO is "); 3103 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len); 3104 BIO_printf(bio_s_out, "\n"); 3105 } 3106 #endif 3107 #ifndef OPENSSL_NO_SRTP 3108 { 3109 SRTP_PROTECTION_PROFILE *srtp_profile 3110 = SSL_get_selected_srtp_profile(con); 3111 3112 if (srtp_profile) 3113 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", 3114 srtp_profile->name); 3115 } 3116 #endif 3117 if (SSL_session_reused(con)) 3118 BIO_printf(bio_s_out, "Reused session-id\n"); 3119 3120 ssl_print_secure_renegotiation_notes(bio_s_out, con); 3121 3122 if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION)) 3123 BIO_printf(bio_s_out, "Renegotiation is DISABLED\n"); 3124 3125 if (keymatexportlabel != NULL) { 3126 BIO_printf(bio_s_out, "Keying material exporter:\n"); 3127 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); 3128 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen); 3129 exportedkeymat = app_malloc(keymatexportlen, "export key"); 3130 if (SSL_export_keying_material(con, exportedkeymat, 3131 keymatexportlen, 3132 keymatexportlabel, 3133 strlen(keymatexportlabel), 3134 NULL, 0, 0) <= 0) { 3135 BIO_printf(bio_s_out, " Error\n"); 3136 } else { 3137 BIO_printf(bio_s_out, " Keying material: "); 3138 for (i = 0; i < keymatexportlen; i++) 3139 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]); 3140 BIO_printf(bio_s_out, "\n"); 3141 } 3142 OPENSSL_free(exportedkeymat); 3143 } 3144 #ifndef OPENSSL_NO_KTLS 3145 if (BIO_get_ktls_send(SSL_get_wbio(con))) 3146 BIO_printf(bio_err, "Using Kernel TLS for sending\n"); 3147 if (BIO_get_ktls_recv(SSL_get_rbio(con))) 3148 BIO_printf(bio_err, "Using Kernel TLS for receiving\n"); 3149 #endif 3150 3151 (void)BIO_flush(bio_s_out); 3152 } 3153 3154 static int www_body(int s, int stype, int prot, unsigned char *context) 3155 { 3156 char *buf = NULL, *p; 3157 int ret = 1; 3158 int i, j, k, dot; 3159 SSL *con; 3160 const SSL_CIPHER *c; 3161 BIO *io, *ssl_bio, *sbio, *edio; 3162 #ifdef RENEG 3163 int total_bytes = 0; 3164 #endif 3165 int width; 3166 #ifndef OPENSSL_NO_KTLS 3167 int use_sendfile_for_req = use_sendfile; 3168 #endif 3169 fd_set readfds; 3170 const char *opmode; 3171 #ifdef CHARSET_EBCDIC 3172 BIO *filter; 3173 #endif 3174 3175 /* Set width for a select call if needed */ 3176 width = s + 1; 3177 3178 /* as we use BIO_gets(), and it always null terminates data, we need 3179 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */ 3180 p = buf = app_malloc(bufsize + 1, "server www buffer"); 3181 io = BIO_new(BIO_f_buffer()); 3182 ssl_bio = BIO_new(BIO_f_ssl()); 3183 edio = BIO_new(BIO_s_mem()); 3184 if ((io == NULL) || (ssl_bio == NULL) || (edio == NULL)) 3185 goto err; 3186 3187 if (s_nbio) { 3188 if (!BIO_socket_nbio(s, 1)) 3189 ERR_print_errors(bio_err); 3190 else if (!s_quiet) 3191 BIO_printf(bio_err, "Turned on non blocking io\n"); 3192 } 3193 3194 /* lets make the output buffer a reasonable size */ 3195 if (BIO_set_write_buffer_size(io, bufsize) <= 0) 3196 goto err; 3197 3198 if ((con = SSL_new(ctx)) == NULL) 3199 goto err; 3200 3201 if (s_tlsextdebug) { 3202 SSL_set_tlsext_debug_callback(con, tlsext_cb); 3203 SSL_set_tlsext_debug_arg(con, bio_s_out); 3204 } 3205 3206 if (context != NULL 3207 && !SSL_set_session_id_context(con, context, 3208 strlen((char *)context))) { 3209 SSL_free(con); 3210 goto err; 3211 } 3212 3213 sbio = BIO_new_socket(s, BIO_NOCLOSE); 3214 if (sbio == NULL) { 3215 SSL_free(con); 3216 goto err; 3217 } 3218 3219 if (s_nbio_test) { 3220 BIO *test; 3221 3222 test = BIO_new(BIO_f_nbio_test()); 3223 if (test == NULL) { 3224 SSL_free(con); 3225 BIO_free(sbio); 3226 goto err; 3227 } 3228 3229 sbio = BIO_push(test, sbio); 3230 } 3231 SSL_set_bio(con, sbio, sbio); 3232 SSL_set_accept_state(con); 3233 3234 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ 3235 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 3236 BIO_push(io, ssl_bio); 3237 ssl_bio = NULL; 3238 #ifdef CHARSET_EBCDIC 3239 filter = BIO_new(BIO_f_ebcdic_filter()); 3240 if (filter == NULL) 3241 goto err; 3242 3243 io = BIO_push(filter, io); 3244 3245 filter = BIO_new(BIO_f_ebcdic_filter()); 3246 if (filter == NULL) 3247 goto err; 3248 3249 edio = BIO_push(filter, edio); 3250 #endif 3251 3252 if (s_debug) { 3253 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback); 3254 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 3255 } 3256 if (s_msg) { 3257 #ifndef OPENSSL_NO_SSL_TRACE 3258 if (s_msg == 2) 3259 SSL_set_msg_callback(con, SSL_trace); 3260 else 3261 #endif 3262 SSL_set_msg_callback(con, msg_cb); 3263 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 3264 } 3265 3266 if (early_data) { 3267 int edret = SSL_READ_EARLY_DATA_ERROR; 3268 size_t readbytes; 3269 3270 while (edret != SSL_READ_EARLY_DATA_FINISH) { 3271 for (;;) { 3272 edret = SSL_read_early_data(con, buf, bufsize, &readbytes); 3273 if (edret != SSL_READ_EARLY_DATA_ERROR) 3274 break; 3275 3276 switch (SSL_get_error(con, 0)) { 3277 case SSL_ERROR_WANT_WRITE: 3278 case SSL_ERROR_WANT_ASYNC: 3279 case SSL_ERROR_WANT_READ: 3280 /* Just keep trying - busy waiting */ 3281 continue; 3282 default: 3283 BIO_printf(bio_err, "Error reading early data\n"); 3284 ERR_print_errors(bio_err); 3285 goto err; 3286 } 3287 } 3288 if (readbytes > 0) 3289 BIO_write(edio, buf, (int)readbytes); 3290 } 3291 } 3292 3293 for (;;) { 3294 i = BIO_gets(!BIO_eof(edio) ? edio : io, buf, bufsize + 1); 3295 if (i < 0) { /* error */ 3296 if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) { 3297 if (!s_quiet) 3298 ERR_print_errors(bio_err); 3299 goto err; 3300 } else { 3301 BIO_printf(bio_s_out, "read R BLOCK\n"); 3302 #ifndef OPENSSL_NO_SRP 3303 if (BIO_should_io_special(io) 3304 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3305 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 3306 3307 lookup_srp_user(&srp_callback_parm, bio_s_out); 3308 3309 continue; 3310 } 3311 #endif 3312 OSSL_sleep(1000); 3313 continue; 3314 } 3315 } else if (i == 0) { /* end of input */ 3316 ret = 1; 3317 goto end; 3318 } 3319 3320 /* else we have data */ 3321 if ((www == 1 && HAS_PREFIX(buf, "GET ")) 3322 || (www == 2 && HAS_PREFIX(buf, "GET /stats "))) { 3323 X509 *peer = NULL; 3324 STACK_OF(SSL_CIPHER) *sk; 3325 static const char *space = " "; 3326 3327 if (www == 1 && HAS_PREFIX(buf, "GET /reneg")) { 3328 if (HAS_PREFIX(buf, "GET /renegcert")) 3329 SSL_set_verify(con, 3330 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, 3331 NULL); 3332 i = SSL_renegotiate(con); 3333 BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i); 3334 /* Send the HelloRequest */ 3335 i = SSL_do_handshake(con); 3336 if (i <= 0) { 3337 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", 3338 SSL_get_error(con, i)); 3339 ERR_print_errors(bio_err); 3340 goto err; 3341 } 3342 /* Wait for a ClientHello to come back */ 3343 FD_ZERO(&readfds); 3344 openssl_fdset(s, &readfds); 3345 i = select(width, (void *)&readfds, NULL, NULL, NULL); 3346 if (i <= 0 || !FD_ISSET(s, &readfds)) { 3347 BIO_printf(bio_s_out, 3348 "Error waiting for client response\n"); 3349 ERR_print_errors(bio_err); 3350 goto err; 3351 } 3352 /* 3353 * We're not actually expecting any data here and we ignore 3354 * any that is sent. This is just to force the handshake that 3355 * we're expecting to come from the client. If they haven't 3356 * sent one there's not much we can do. 3357 */ 3358 BIO_gets(io, buf, bufsize + 1); 3359 } 3360 3361 BIO_puts(io, 3362 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 3363 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); 3364 BIO_puts(io, "<pre>\n"); 3365 /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */ 3366 BIO_puts(io, "\n"); 3367 for (i = 0; i < local_argc; i++) { 3368 const char *myp; 3369 3370 for (myp = local_argv[i]; *myp; myp++) 3371 switch (*myp) { 3372 case '<': 3373 BIO_puts(io, "<"); 3374 break; 3375 case '>': 3376 BIO_puts(io, ">"); 3377 break; 3378 case '&': 3379 BIO_puts(io, "&"); 3380 break; 3381 default: 3382 BIO_write(io, myp, 1); 3383 break; 3384 } 3385 BIO_write(io, " ", 1); 3386 } 3387 BIO_puts(io, "\n"); 3388 3389 ssl_print_secure_renegotiation_notes(io, con); 3390 3391 /* 3392 * The following is evil and should not really be done 3393 */ 3394 BIO_printf(io, "Ciphers supported in s_server binary\n"); 3395 sk = SSL_get_ciphers(con); 3396 j = sk_SSL_CIPHER_num(sk); 3397 for (i = 0; i < j; i++) { 3398 c = sk_SSL_CIPHER_value(sk, i); 3399 BIO_printf(io, "%-11s:%-25s ", 3400 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3401 if ((((i + 1) % 2) == 0) && (i + 1 != j)) 3402 BIO_puts(io, "\n"); 3403 } 3404 BIO_puts(io, "\n"); 3405 p = SSL_get_shared_ciphers(con, buf, bufsize); 3406 if (p != NULL) { 3407 BIO_printf(io, 3408 "---\nCiphers common between both SSL end points:\n"); 3409 j = i = 0; 3410 while (*p) { 3411 if (*p == ':') { 3412 BIO_write(io, space, 26 - j); 3413 i++; 3414 j = 0; 3415 BIO_write(io, ((i % 3) ? " " : "\n"), 1); 3416 } else { 3417 BIO_write(io, p, 1); 3418 j++; 3419 } 3420 p++; 3421 } 3422 BIO_puts(io, "\n"); 3423 } 3424 ssl_print_sigalgs(io, con); 3425 #ifndef OPENSSL_NO_EC 3426 ssl_print_groups(io, con, 0); 3427 #endif 3428 print_ca_names(io, con); 3429 BIO_printf(io, (SSL_session_reused(con) 3430 ? "---\nReused, " : "---\nNew, ")); 3431 c = SSL_get_current_cipher(con); 3432 BIO_printf(io, "%s, Cipher is %s\n", 3433 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3434 SSL_SESSION_print(io, SSL_get_session(con)); 3435 BIO_printf(io, "---\n"); 3436 print_stats(io, SSL_get_SSL_CTX(con)); 3437 BIO_printf(io, "---\n"); 3438 peer = SSL_get0_peer_certificate(con); 3439 if (peer != NULL) { 3440 BIO_printf(io, "Client certificate\n"); 3441 X509_print(io, peer); 3442 PEM_write_bio_X509(io, peer); 3443 peer = NULL; 3444 } else { 3445 BIO_puts(io, "no client certificate available\n"); 3446 } 3447 BIO_puts(io, "</pre></BODY></HTML>\r\n\r\n"); 3448 break; 3449 } else if ((www == 2 || www == 3) && CHECK_AND_SKIP_PREFIX(p, "GET /")) { 3450 BIO *file; 3451 char *e; 3452 static const char *text = 3453 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; 3454 3455 dot = 1; 3456 for (e = p; *e != '\0'; e++) { 3457 if (e[0] == ' ') 3458 break; 3459 3460 if (e[0] == ':') { 3461 /* Windows drive. We treat this the same way as ".." */ 3462 dot = -1; 3463 break; 3464 } 3465 3466 switch (dot) { 3467 case 1: 3468 dot = (e[0] == '.') ? 2 : 0; 3469 break; 3470 case 2: 3471 dot = (e[0] == '.') ? 3 : 0; 3472 break; 3473 case 3: 3474 dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0; 3475 break; 3476 } 3477 if (dot == 0) 3478 dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0; 3479 } 3480 dot = (dot == 3) || (dot == -1); /* filename contains ".." 3481 * component */ 3482 3483 if (*e == '\0') { 3484 BIO_puts(io, text); 3485 BIO_printf(io, "'%s' is an invalid file name\r\n", p); 3486 break; 3487 } 3488 *e = '\0'; 3489 3490 if (dot) { 3491 BIO_puts(io, text); 3492 BIO_printf(io, "'%s' contains '..' or ':'\r\n", p); 3493 break; 3494 } 3495 3496 if (*p == '/' || *p == '\\') { 3497 BIO_puts(io, text); 3498 BIO_printf(io, "'%s' is an invalid path\r\n", p); 3499 break; 3500 } 3501 3502 /* if a directory, do the index thang */ 3503 if (app_isdir(p) > 0) { 3504 BIO_puts(io, text); 3505 BIO_printf(io, "'%s' is a directory\r\n", p); 3506 break; 3507 } 3508 3509 opmode = (http_server_binmode == 1) ? "rb" : "r"; 3510 if ((file = BIO_new_file(p, opmode)) == NULL) { 3511 BIO_puts(io, text); 3512 BIO_printf(io, "Error opening '%s' mode='%s'\r\n", p, opmode); 3513 ERR_print_errors(io); 3514 break; 3515 } 3516 3517 if (!s_quiet) 3518 BIO_printf(bio_err, "FILE:%s\n", p); 3519 3520 if (www == 2) { 3521 i = strlen(p); 3522 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || 3523 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || 3524 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) 3525 BIO_puts(io, 3526 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); 3527 else 3528 BIO_puts(io, 3529 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); 3530 } 3531 /* send the file */ 3532 #ifndef OPENSSL_NO_KTLS 3533 if (use_sendfile_for_req && !BIO_get_ktls_send(SSL_get_wbio(con))) { 3534 BIO_printf(bio_err, "Warning: sendfile requested but KTLS is not available\n"); 3535 use_sendfile_for_req = 0; 3536 } 3537 if (use_sendfile_for_req) { 3538 FILE *fp = NULL; 3539 int fd; 3540 struct stat st; 3541 off_t offset = 0; 3542 size_t filesize; 3543 3544 BIO_get_fp(file, &fp); 3545 fd = fileno(fp); 3546 if (fstat(fd, &st) < 0) { 3547 BIO_printf(io, "Error fstat '%s'\r\n", p); 3548 ERR_print_errors(io); 3549 goto write_error; 3550 } 3551 3552 filesize = st.st_size; 3553 if (((int)BIO_flush(io)) < 0) 3554 goto write_error; 3555 3556 for (;;) { 3557 i = SSL_sendfile(con, fd, offset, filesize, 0); 3558 if (i < 0) { 3559 BIO_printf(io, "Error SSL_sendfile '%s'\r\n", p); 3560 ERR_print_errors(io); 3561 break; 3562 } else { 3563 offset += i; 3564 filesize -= i; 3565 } 3566 3567 if (filesize <= 0) { 3568 if (!s_quiet) 3569 BIO_printf(bio_err, "KTLS SENDFILE '%s' OK\n", p); 3570 3571 break; 3572 } 3573 } 3574 } else 3575 #endif 3576 { 3577 for (;;) { 3578 i = BIO_read(file, buf, bufsize); 3579 if (i <= 0) 3580 break; 3581 3582 #ifdef RENEG 3583 total_bytes += i; 3584 BIO_printf(bio_err, "%d\n", i); 3585 if (total_bytes > 3 * 1024) { 3586 total_bytes = 0; 3587 BIO_printf(bio_err, "RENEGOTIATE\n"); 3588 SSL_renegotiate(con); 3589 } 3590 #endif 3591 3592 for (j = 0; j < i;) { 3593 #ifdef RENEG 3594 static count = 0; 3595 if (++count == 13) 3596 SSL_renegotiate(con); 3597 #endif 3598 k = BIO_write(io, &(buf[j]), i - j); 3599 if (k <= 0) { 3600 if (!BIO_should_retry(io) 3601 && !SSL_waiting_for_async(con)) { 3602 goto write_error; 3603 } else { 3604 BIO_printf(bio_s_out, "rwrite W BLOCK\n"); 3605 } 3606 } else { 3607 j += k; 3608 } 3609 } 3610 } 3611 } 3612 write_error: 3613 BIO_free(file); 3614 break; 3615 } 3616 } 3617 3618 for (;;) { 3619 i = (int)BIO_flush(io); 3620 if (i <= 0) { 3621 if (!BIO_should_retry(io)) 3622 break; 3623 } else 3624 break; 3625 } 3626 end: 3627 /* make sure we reuse sessions */ 3628 do_ssl_shutdown(con); 3629 3630 err: 3631 OPENSSL_free(buf); 3632 BIO_free(ssl_bio); 3633 BIO_free_all(io); 3634 BIO_free_all(edio); 3635 return ret; 3636 } 3637 3638 static int rev_body(int s, int stype, int prot, unsigned char *context) 3639 { 3640 char *buf = NULL; 3641 int i; 3642 int ret = 1; 3643 SSL *con; 3644 BIO *io, *ssl_bio, *sbio; 3645 #ifdef CHARSET_EBCDIC 3646 BIO *filter; 3647 #endif 3648 3649 /* as we use BIO_gets(), and it always null terminates data, we need 3650 * to allocate 1 byte longer buffer to fit the full 2^14 byte record */ 3651 buf = app_malloc(bufsize + 1, "server rev buffer"); 3652 io = BIO_new(BIO_f_buffer()); 3653 ssl_bio = BIO_new(BIO_f_ssl()); 3654 if ((io == NULL) || (ssl_bio == NULL)) 3655 goto err; 3656 3657 /* lets make the output buffer a reasonable size */ 3658 if (BIO_set_write_buffer_size(io, bufsize) <= 0) 3659 goto err; 3660 3661 if ((con = SSL_new(ctx)) == NULL) 3662 goto err; 3663 3664 if (s_tlsextdebug) { 3665 SSL_set_tlsext_debug_callback(con, tlsext_cb); 3666 SSL_set_tlsext_debug_arg(con, bio_s_out); 3667 } 3668 if (context != NULL 3669 && !SSL_set_session_id_context(con, context, 3670 strlen((char *)context))) { 3671 SSL_free(con); 3672 ERR_print_errors(bio_err); 3673 goto err; 3674 } 3675 3676 sbio = BIO_new_socket(s, BIO_NOCLOSE); 3677 if (sbio == NULL) { 3678 SSL_free(con); 3679 ERR_print_errors(bio_err); 3680 goto err; 3681 } 3682 3683 SSL_set_bio(con, sbio, sbio); 3684 SSL_set_accept_state(con); 3685 3686 /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ 3687 BIO_set_ssl(ssl_bio, con, BIO_CLOSE); 3688 BIO_push(io, ssl_bio); 3689 ssl_bio = NULL; 3690 #ifdef CHARSET_EBCDIC 3691 filter = BIO_new(BIO_f_ebcdic_filter()); 3692 if (filter == NULL) 3693 goto err; 3694 3695 io = BIO_push(filter, io); 3696 #endif 3697 3698 if (s_debug) { 3699 BIO_set_callback_ex(SSL_get_rbio(con), bio_dump_callback); 3700 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); 3701 } 3702 if (s_msg) { 3703 #ifndef OPENSSL_NO_SSL_TRACE 3704 if (s_msg == 2) 3705 SSL_set_msg_callback(con, SSL_trace); 3706 else 3707 #endif 3708 SSL_set_msg_callback(con, msg_cb); 3709 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); 3710 } 3711 3712 for (;;) { 3713 i = BIO_do_handshake(io); 3714 if (i > 0) 3715 break; 3716 if (!BIO_should_retry(io)) { 3717 BIO_puts(bio_err, "CONNECTION FAILURE\n"); 3718 ERR_print_errors(bio_err); 3719 goto end; 3720 } 3721 #ifndef OPENSSL_NO_SRP 3722 if (BIO_should_io_special(io) 3723 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3724 BIO_printf(bio_s_out, "LOOKUP renego during accept\n"); 3725 3726 lookup_srp_user(&srp_callback_parm, bio_s_out); 3727 3728 continue; 3729 } 3730 #endif 3731 } 3732 BIO_printf(bio_err, "CONNECTION ESTABLISHED\n"); 3733 print_ssl_summary(con); 3734 3735 for (;;) { 3736 i = BIO_gets(io, buf, bufsize + 1); 3737 if (i < 0) { /* error */ 3738 if (!BIO_should_retry(io)) { 3739 if (!s_quiet) 3740 ERR_print_errors(bio_err); 3741 goto err; 3742 } else { 3743 BIO_printf(bio_s_out, "read R BLOCK\n"); 3744 #ifndef OPENSSL_NO_SRP 3745 if (BIO_should_io_special(io) 3746 && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { 3747 BIO_printf(bio_s_out, "LOOKUP renego during read\n"); 3748 3749 lookup_srp_user(&srp_callback_parm, bio_s_out); 3750 3751 continue; 3752 } 3753 #endif 3754 OSSL_sleep(1000); 3755 continue; 3756 } 3757 } else if (i == 0) { /* end of input */ 3758 ret = 1; 3759 BIO_printf(bio_err, "CONNECTION CLOSED\n"); 3760 goto end; 3761 } else { 3762 char *p = buf + i - 1; 3763 while (i && (*p == '\n' || *p == '\r')) { 3764 p--; 3765 i--; 3766 } 3767 if (!s_ign_eof && i == 5 && HAS_PREFIX(buf, "CLOSE")) { 3768 ret = 1; 3769 BIO_printf(bio_err, "CONNECTION CLOSED\n"); 3770 goto end; 3771 } 3772 BUF_reverse((unsigned char *)buf, NULL, i); 3773 buf[i] = '\n'; 3774 BIO_write(io, buf, i + 1); 3775 for (;;) { 3776 i = BIO_flush(io); 3777 if (i > 0) 3778 break; 3779 if (!BIO_should_retry(io)) 3780 goto end; 3781 } 3782 } 3783 } 3784 end: 3785 /* make sure we reuse sessions */ 3786 do_ssl_shutdown(con); 3787 3788 err: 3789 3790 OPENSSL_free(buf); 3791 BIO_free(ssl_bio); 3792 BIO_free_all(io); 3793 return ret; 3794 } 3795 3796 #define MAX_SESSION_ID_ATTEMPTS 10 3797 static int generate_session_id(SSL *ssl, unsigned char *id, 3798 unsigned int *id_len) 3799 { 3800 unsigned int count = 0; 3801 unsigned int session_id_prefix_len = strlen(session_id_prefix); 3802 3803 do { 3804 if (RAND_bytes(id, *id_len) <= 0) 3805 return 0; 3806 /* 3807 * Prefix the session_id with the required prefix. NB: If our prefix 3808 * is too long, clip it - but there will be worse effects anyway, eg. 3809 * the server could only possibly create 1 session ID (ie. the 3810 * prefix!) so all future session negotiations will fail due to 3811 * conflicts. 3812 */ 3813 memcpy(id, session_id_prefix, 3814 (session_id_prefix_len < *id_len) ? 3815 session_id_prefix_len : *id_len); 3816 } 3817 while (SSL_has_matching_session_id(ssl, id, *id_len) && 3818 (++count < MAX_SESSION_ID_ATTEMPTS)); 3819 if (count >= MAX_SESSION_ID_ATTEMPTS) 3820 return 0; 3821 return 1; 3822 } 3823 3824 /* 3825 * By default s_server uses an in-memory cache which caches SSL_SESSION 3826 * structures without any serialization. This hides some bugs which only 3827 * become apparent in deployed servers. By implementing a basic external 3828 * session cache some issues can be debugged using s_server. 3829 */ 3830 3831 typedef struct simple_ssl_session_st { 3832 unsigned char *id; 3833 unsigned int idlen; 3834 unsigned char *der; 3835 int derlen; 3836 struct simple_ssl_session_st *next; 3837 } simple_ssl_session; 3838 3839 static simple_ssl_session *first = NULL; 3840 3841 static int add_session(SSL *ssl, SSL_SESSION *session) 3842 { 3843 simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session"); 3844 unsigned char *p; 3845 3846 SSL_SESSION_get_id(session, &sess->idlen); 3847 sess->derlen = i2d_SSL_SESSION(session, NULL); 3848 if (sess->derlen < 0) { 3849 BIO_printf(bio_err, "Error encoding session\n"); 3850 OPENSSL_free(sess); 3851 return 0; 3852 } 3853 3854 sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen); 3855 sess->der = app_malloc(sess->derlen, "get session buffer"); 3856 if (!sess->id) { 3857 BIO_printf(bio_err, "Out of memory adding to external cache\n"); 3858 OPENSSL_free(sess->id); 3859 OPENSSL_free(sess->der); 3860 OPENSSL_free(sess); 3861 return 0; 3862 } 3863 p = sess->der; 3864 3865 /* Assume it still works. */ 3866 if (i2d_SSL_SESSION(session, &p) != sess->derlen) { 3867 BIO_printf(bio_err, "Unexpected session encoding length\n"); 3868 OPENSSL_free(sess->id); 3869 OPENSSL_free(sess->der); 3870 OPENSSL_free(sess); 3871 return 0; 3872 } 3873 3874 sess->next = first; 3875 first = sess; 3876 BIO_printf(bio_err, "New session added to external cache\n"); 3877 return 0; 3878 } 3879 3880 static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen, 3881 int *do_copy) 3882 { 3883 simple_ssl_session *sess; 3884 *do_copy = 0; 3885 for (sess = first; sess; sess = sess->next) { 3886 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) { 3887 const unsigned char *p = sess->der; 3888 BIO_printf(bio_err, "Lookup session: cache hit\n"); 3889 return d2i_SSL_SESSION_ex(NULL, &p, sess->derlen, app_get0_libctx(), 3890 app_get0_propq()); 3891 } 3892 } 3893 BIO_printf(bio_err, "Lookup session: cache miss\n"); 3894 return NULL; 3895 } 3896 3897 static void del_session(SSL_CTX *sctx, SSL_SESSION *session) 3898 { 3899 simple_ssl_session *sess, *prev = NULL; 3900 const unsigned char *id; 3901 unsigned int idlen; 3902 id = SSL_SESSION_get_id(session, &idlen); 3903 for (sess = first; sess; sess = sess->next) { 3904 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) { 3905 if (prev) 3906 prev->next = sess->next; 3907 else 3908 first = sess->next; 3909 OPENSSL_free(sess->id); 3910 OPENSSL_free(sess->der); 3911 OPENSSL_free(sess); 3912 return; 3913 } 3914 prev = sess; 3915 } 3916 } 3917 3918 static void init_session_cache_ctx(SSL_CTX *sctx) 3919 { 3920 SSL_CTX_set_session_cache_mode(sctx, 3921 SSL_SESS_CACHE_NO_INTERNAL | 3922 SSL_SESS_CACHE_SERVER); 3923 SSL_CTX_sess_set_new_cb(sctx, add_session); 3924 SSL_CTX_sess_set_get_cb(sctx, get_session); 3925 SSL_CTX_sess_set_remove_cb(sctx, del_session); 3926 } 3927 3928 static void free_sessions(void) 3929 { 3930 simple_ssl_session *sess, *tsess; 3931 for (sess = first; sess;) { 3932 OPENSSL_free(sess->id); 3933 OPENSSL_free(sess->der); 3934 tsess = sess; 3935 sess = sess->next; 3936 OPENSSL_free(tsess); 3937 } 3938 first = NULL; 3939 } 3940 3941 #endif /* OPENSSL_NO_SOCK */ 3942