1 /* 2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright 2005 Nokia. All rights reserved. 4 * 5 * Licensed under the OpenSSL license (the "License"). You may not use 6 * this file except in compliance with the License. You can obtain a copy 7 * in the file LICENSE in the source distribution or at 8 * https://www.openssl.org/source/license.html 9 */ 10 11 #include "e_os.h" 12 #include <ctype.h> 13 #include <stdio.h> 14 #include <stdlib.h> 15 #include <string.h> 16 #include <errno.h> 17 #include <openssl/e_os2.h> 18 19 #ifndef OPENSSL_NO_SOCK 20 21 /* 22 * With IPv6, it looks like Digital has mixed up the proper order of 23 * recursive header file inclusion, resulting in the compiler complaining 24 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is 25 * needed to have fileno() declared correctly... So let's define u_int 26 */ 27 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) 28 # define __U_INT 29 typedef unsigned int u_int; 30 #endif 31 32 #include "apps.h" 33 #include "progs.h" 34 #include <openssl/x509.h> 35 #include <openssl/ssl.h> 36 #include <openssl/err.h> 37 #include <openssl/pem.h> 38 #include <openssl/rand.h> 39 #include <openssl/ocsp.h> 40 #include <openssl/bn.h> 41 #include <openssl/async.h> 42 #ifndef OPENSSL_NO_SRP 43 # include <openssl/srp.h> 44 #endif 45 #ifndef OPENSSL_NO_CT 46 # include <openssl/ct.h> 47 #endif 48 #include "s_apps.h" 49 #include "timeouts.h" 50 #include "internal/sockets.h" 51 52 #if defined(__has_feature) 53 # if __has_feature(memory_sanitizer) 54 # include <sanitizer/msan_interface.h> 55 # endif 56 #endif 57 58 #undef BUFSIZZ 59 #define BUFSIZZ 1024*8 60 #define S_CLIENT_IRC_READ_TIMEOUT 8 61 62 static char *prog; 63 static int c_debug = 0; 64 static int c_showcerts = 0; 65 static char *keymatexportlabel = NULL; 66 static int keymatexportlen = 20; 67 static BIO *bio_c_out = NULL; 68 static int c_quiet = 0; 69 static char *sess_out = NULL; 70 static SSL_SESSION *psksess = NULL; 71 72 static void print_stuff(BIO *berr, SSL *con, int full); 73 #ifndef OPENSSL_NO_OCSP 74 static int ocsp_resp_cb(SSL *s, void *arg); 75 #endif 76 static int ldap_ExtendedResponse_parse(const char *buf, long rem); 77 static int is_dNS_name(const char *host); 78 79 static int saved_errno; 80 81 static void save_errno(void) 82 { 83 saved_errno = errno; 84 errno = 0; 85 } 86 87 static int restore_errno(void) 88 { 89 int ret = errno; 90 errno = saved_errno; 91 return ret; 92 } 93 94 static void do_ssl_shutdown(SSL *ssl) 95 { 96 int ret; 97 98 do { 99 /* We only do unidirectional shutdown */ 100 ret = SSL_shutdown(ssl); 101 if (ret < 0) { 102 switch (SSL_get_error(ssl, ret)) { 103 case SSL_ERROR_WANT_READ: 104 case SSL_ERROR_WANT_WRITE: 105 case SSL_ERROR_WANT_ASYNC: 106 case SSL_ERROR_WANT_ASYNC_JOB: 107 /* We just do busy waiting. Nothing clever */ 108 continue; 109 } 110 ret = 0; 111 } 112 } while (ret < 0); 113 } 114 115 /* Default PSK identity and key */ 116 static char *psk_identity = "Client_identity"; 117 118 #ifndef OPENSSL_NO_PSK 119 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, 120 unsigned int max_identity_len, 121 unsigned char *psk, 122 unsigned int max_psk_len) 123 { 124 int ret; 125 long key_len; 126 unsigned char *key; 127 128 if (c_debug) 129 BIO_printf(bio_c_out, "psk_client_cb\n"); 130 if (!hint) { 131 /* no ServerKeyExchange message */ 132 if (c_debug) 133 BIO_printf(bio_c_out, 134 "NULL received PSK identity hint, continuing anyway\n"); 135 } else if (c_debug) { 136 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); 137 } 138 139 /* 140 * lookup PSK identity and PSK key based on the given identity hint here 141 */ 142 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity); 143 if (ret < 0 || (unsigned int)ret > max_identity_len) 144 goto out_err; 145 if (c_debug) 146 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, 147 ret); 148 149 /* convert the PSK key to binary */ 150 key = OPENSSL_hexstr2buf(psk_key, &key_len); 151 if (key == NULL) { 152 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 153 psk_key); 154 return 0; 155 } 156 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) { 157 BIO_printf(bio_err, 158 "psk buffer of callback is too small (%d) for key (%ld)\n", 159 max_psk_len, key_len); 160 OPENSSL_free(key); 161 return 0; 162 } 163 164 memcpy(psk, key, key_len); 165 OPENSSL_free(key); 166 167 if (c_debug) 168 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len); 169 170 return key_len; 171 out_err: 172 if (c_debug) 173 BIO_printf(bio_err, "Error in PSK client callback\n"); 174 return 0; 175 } 176 #endif 177 178 const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 }; 179 const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 }; 180 181 static int psk_use_session_cb(SSL *s, const EVP_MD *md, 182 const unsigned char **id, size_t *idlen, 183 SSL_SESSION **sess) 184 { 185 SSL_SESSION *usesess = NULL; 186 const SSL_CIPHER *cipher = NULL; 187 188 if (psksess != NULL) { 189 SSL_SESSION_up_ref(psksess); 190 usesess = psksess; 191 } else { 192 long key_len; 193 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len); 194 195 if (key == NULL) { 196 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 197 psk_key); 198 return 0; 199 } 200 201 /* We default to SHA-256 */ 202 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id); 203 if (cipher == NULL) { 204 BIO_printf(bio_err, "Error finding suitable ciphersuite\n"); 205 OPENSSL_free(key); 206 return 0; 207 } 208 209 usesess = SSL_SESSION_new(); 210 if (usesess == NULL 211 || !SSL_SESSION_set1_master_key(usesess, key, key_len) 212 || !SSL_SESSION_set_cipher(usesess, cipher) 213 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) { 214 OPENSSL_free(key); 215 goto err; 216 } 217 OPENSSL_free(key); 218 } 219 220 cipher = SSL_SESSION_get0_cipher(usesess); 221 if (cipher == NULL) 222 goto err; 223 224 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) { 225 /* PSK not usable, ignore it */ 226 *id = NULL; 227 *idlen = 0; 228 *sess = NULL; 229 SSL_SESSION_free(usesess); 230 } else { 231 *sess = usesess; 232 *id = (unsigned char *)psk_identity; 233 *idlen = strlen(psk_identity); 234 } 235 236 return 1; 237 238 err: 239 SSL_SESSION_free(usesess); 240 return 0; 241 } 242 243 /* This is a context that we pass to callbacks */ 244 typedef struct tlsextctx_st { 245 BIO *biodebug; 246 int ack; 247 } tlsextctx; 248 249 static int ssl_servername_cb(SSL *s, int *ad, void *arg) 250 { 251 tlsextctx *p = (tlsextctx *) arg; 252 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 253 if (SSL_get_servername_type(s) != -1) 254 p->ack = !SSL_session_reused(s) && hn != NULL; 255 else 256 BIO_printf(bio_err, "Can't use SSL_get_servername\n"); 257 258 return SSL_TLSEXT_ERR_OK; 259 } 260 261 #ifndef OPENSSL_NO_SRP 262 263 /* This is a context that we pass to all callbacks */ 264 typedef struct srp_arg_st { 265 char *srppassin; 266 char *srplogin; 267 int msg; /* copy from c_msg */ 268 int debug; /* copy from c_debug */ 269 int amp; /* allow more groups */ 270 int strength; /* minimal size for N */ 271 } SRP_ARG; 272 273 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 274 275 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g) 276 { 277 BN_CTX *bn_ctx = BN_CTX_new(); 278 BIGNUM *p = BN_new(); 279 BIGNUM *r = BN_new(); 280 int ret = 281 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && 282 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 && 283 p != NULL && BN_rshift1(p, N) && 284 /* p = (N-1)/2 */ 285 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 && 286 r != NULL && 287 /* verify g^((N-1)/2) == -1 (mod N) */ 288 BN_mod_exp(r, g, p, N, bn_ctx) && 289 BN_add_word(r, 1) && BN_cmp(r, N) == 0; 290 291 BN_free(r); 292 BN_free(p); 293 BN_CTX_free(bn_ctx); 294 return ret; 295 } 296 297 /*- 298 * This callback is used here for two purposes: 299 * - extended debugging 300 * - making some primality tests for unknown groups 301 * The callback is only called for a non default group. 302 * 303 * An application does not need the call back at all if 304 * only the standard groups are used. In real life situations, 305 * client and server already share well known groups, 306 * thus there is no need to verify them. 307 * Furthermore, in case that a server actually proposes a group that 308 * is not one of those defined in RFC 5054, it is more appropriate 309 * to add the group to a static list and then compare since 310 * primality tests are rather cpu consuming. 311 */ 312 313 static int ssl_srp_verify_param_cb(SSL *s, void *arg) 314 { 315 SRP_ARG *srp_arg = (SRP_ARG *)arg; 316 BIGNUM *N = NULL, *g = NULL; 317 318 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL)) 319 return 0; 320 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) { 321 BIO_printf(bio_err, "SRP parameters:\n"); 322 BIO_printf(bio_err, "\tN="); 323 BN_print(bio_err, N); 324 BIO_printf(bio_err, "\n\tg="); 325 BN_print(bio_err, g); 326 BIO_printf(bio_err, "\n"); 327 } 328 329 if (SRP_check_known_gN_param(g, N)) 330 return 1; 331 332 if (srp_arg->amp == 1) { 333 if (srp_arg->debug) 334 BIO_printf(bio_err, 335 "SRP param N and g are not known params, going to check deeper.\n"); 336 337 /* 338 * The srp_moregroups is a real debugging feature. Implementors 339 * should rather add the value to the known ones. The minimal size 340 * has already been tested. 341 */ 342 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g)) 343 return 1; 344 } 345 BIO_printf(bio_err, "SRP param N and g rejected.\n"); 346 return 0; 347 } 348 349 # define PWD_STRLEN 1024 350 351 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg) 352 { 353 SRP_ARG *srp_arg = (SRP_ARG *)arg; 354 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer"); 355 PW_CB_DATA cb_tmp; 356 int l; 357 358 cb_tmp.password = (char *)srp_arg->srppassin; 359 cb_tmp.prompt_info = "SRP user"; 360 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) { 361 BIO_printf(bio_err, "Can't read Password\n"); 362 OPENSSL_free(pass); 363 return NULL; 364 } 365 *(pass + l) = '\0'; 366 367 return pass; 368 } 369 370 #endif 371 372 #ifndef OPENSSL_NO_NEXTPROTONEG 373 /* This the context that we pass to next_proto_cb */ 374 typedef struct tlsextnextprotoctx_st { 375 unsigned char *data; 376 size_t len; 377 int status; 378 } tlsextnextprotoctx; 379 380 static tlsextnextprotoctx next_proto; 381 382 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, 383 const unsigned char *in, unsigned int inlen, 384 void *arg) 385 { 386 tlsextnextprotoctx *ctx = arg; 387 388 if (!c_quiet) { 389 /* We can assume that |in| is syntactically valid. */ 390 unsigned i; 391 BIO_printf(bio_c_out, "Protocols advertised by server: "); 392 for (i = 0; i < inlen;) { 393 if (i) 394 BIO_write(bio_c_out, ", ", 2); 395 BIO_write(bio_c_out, &in[i + 1], in[i]); 396 i += in[i] + 1; 397 } 398 BIO_write(bio_c_out, "\n", 1); 399 } 400 401 ctx->status = 402 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); 403 return SSL_TLSEXT_ERR_OK; 404 } 405 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 406 407 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type, 408 const unsigned char *in, size_t inlen, 409 int *al, void *arg) 410 { 411 char pem_name[100]; 412 unsigned char ext_buf[4 + 65536]; 413 414 /* Reconstruct the type/len fields prior to extension data */ 415 inlen &= 0xffff; /* for formal memcmpy correctness */ 416 ext_buf[0] = (unsigned char)(ext_type >> 8); 417 ext_buf[1] = (unsigned char)(ext_type); 418 ext_buf[2] = (unsigned char)(inlen >> 8); 419 ext_buf[3] = (unsigned char)(inlen); 420 memcpy(ext_buf + 4, in, inlen); 421 422 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d", 423 ext_type); 424 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen); 425 return 1; 426 } 427 428 /* 429 * Hex decoder that tolerates optional whitespace. Returns number of bytes 430 * produced, advances inptr to end of input string. 431 */ 432 static ossl_ssize_t hexdecode(const char **inptr, void *result) 433 { 434 unsigned char **out = (unsigned char **)result; 435 const char *in = *inptr; 436 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode"); 437 unsigned char *cp = ret; 438 uint8_t byte; 439 int nibble = 0; 440 441 if (ret == NULL) 442 return -1; 443 444 for (byte = 0; *in; ++in) { 445 int x; 446 447 if (isspace(_UC(*in))) 448 continue; 449 x = OPENSSL_hexchar2int(*in); 450 if (x < 0) { 451 OPENSSL_free(ret); 452 return 0; 453 } 454 byte |= (char)x; 455 if ((nibble ^= 1) == 0) { 456 *cp++ = byte; 457 byte = 0; 458 } else { 459 byte <<= 4; 460 } 461 } 462 if (nibble != 0) { 463 OPENSSL_free(ret); 464 return 0; 465 } 466 *inptr = in; 467 468 return cp - (*out = ret); 469 } 470 471 /* 472 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances 473 * inptr to next field skipping leading whitespace. 474 */ 475 static ossl_ssize_t checked_uint8(const char **inptr, void *out) 476 { 477 uint8_t *result = (uint8_t *)out; 478 const char *in = *inptr; 479 char *endp; 480 long v; 481 int e; 482 483 save_errno(); 484 v = strtol(in, &endp, 10); 485 e = restore_errno(); 486 487 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) || 488 endp == in || !isspace(_UC(*endp)) || 489 v != (*result = (uint8_t) v)) { 490 return -1; 491 } 492 for (in = endp; isspace(_UC(*in)); ++in) 493 continue; 494 495 *inptr = in; 496 return 1; 497 } 498 499 struct tlsa_field { 500 void *var; 501 const char *name; 502 ossl_ssize_t (*parser)(const char **, void *); 503 }; 504 505 static int tlsa_import_rr(SSL *con, const char *rrdata) 506 { 507 /* Not necessary to re-init these values; the "parsers" do that. */ 508 static uint8_t usage; 509 static uint8_t selector; 510 static uint8_t mtype; 511 static unsigned char *data; 512 static struct tlsa_field tlsa_fields[] = { 513 { &usage, "usage", checked_uint8 }, 514 { &selector, "selector", checked_uint8 }, 515 { &mtype, "mtype", checked_uint8 }, 516 { &data, "data", hexdecode }, 517 { NULL, } 518 }; 519 struct tlsa_field *f; 520 int ret; 521 const char *cp = rrdata; 522 ossl_ssize_t len = 0; 523 524 for (f = tlsa_fields; f->var; ++f) { 525 /* Returns number of bytes produced, advances cp to next field */ 526 if ((len = f->parser(&cp, f->var)) <= 0) { 527 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n", 528 prog, f->name, rrdata); 529 return 0; 530 } 531 } 532 /* The data field is last, so len is its length */ 533 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len); 534 OPENSSL_free(data); 535 536 if (ret == 0) { 537 ERR_print_errors(bio_err); 538 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n", 539 prog, rrdata); 540 return 0; 541 } 542 if (ret < 0) { 543 ERR_print_errors(bio_err); 544 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n", 545 prog, rrdata); 546 return 0; 547 } 548 return ret; 549 } 550 551 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset) 552 { 553 int num = sk_OPENSSL_STRING_num(rrset); 554 int count = 0; 555 int i; 556 557 for (i = 0; i < num; ++i) { 558 char *rrdata = sk_OPENSSL_STRING_value(rrset, i); 559 if (tlsa_import_rr(con, rrdata) > 0) 560 ++count; 561 } 562 return count > 0; 563 } 564 565 typedef enum OPTION_choice { 566 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, 567 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX, 568 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT, 569 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN, 570 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, 571 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO, 572 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF, 573 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG, 574 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG, 575 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE, 576 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS, 577 #ifndef OPENSSL_NO_SRP 578 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER, 579 OPT_SRP_MOREGROUPS, 580 #endif 581 OPT_SSL3, OPT_SSL_CONFIG, 582 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, 583 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS, 584 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, 585 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, 586 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN, 587 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC, 588 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST, 589 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, 590 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE, 591 OPT_V_ENUM, 592 OPT_X_ENUM, 593 OPT_S_ENUM, 594 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN, 595 #ifndef OPENSSL_NO_CT 596 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE, 597 #endif 598 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME, 599 OPT_ENABLE_PHA, 600 OPT_SCTP_LABEL_BUG, 601 OPT_R_ENUM 602 } OPTION_CHOICE; 603 604 const OPTIONS s_client_options[] = { 605 {"help", OPT_HELP, '-', "Display this summary"}, 606 {"host", OPT_HOST, 's', "Use -connect instead"}, 607 {"port", OPT_PORT, 'p', "Use -connect instead"}, 608 {"connect", OPT_CONNECT, 's', 609 "TCP/IP where to connect (default is :" PORT ")"}, 610 {"bind", OPT_BIND, 's', "bind local address for connection"}, 611 {"proxy", OPT_PROXY, 's', 612 "Connect to via specified proxy to the real server"}, 613 #ifdef AF_UNIX 614 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"}, 615 #endif 616 {"4", OPT_4, '-', "Use IPv4 only"}, 617 #ifdef AF_INET6 618 {"6", OPT_6, '-', "Use IPv6 only"}, 619 #endif 620 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"}, 621 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"}, 622 {"certform", OPT_CERTFORM, 'F', 623 "Certificate format (PEM or DER) PEM default"}, 624 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"}, 625 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"}, 626 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"}, 627 {"pass", OPT_PASS, 's', "Private key file pass phrase source"}, 628 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, 629 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"}, 630 {"no-CAfile", OPT_NOCAFILE, '-', 631 "Do not load the default certificates file"}, 632 {"no-CApath", OPT_NOCAPATH, '-', 633 "Do not load certificates from the default certificates directory"}, 634 {"requestCAfile", OPT_REQCAFILE, '<', 635 "PEM format file of CA names to send to the server"}, 636 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"}, 637 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's', 638 "DANE TLSA rrdata presentation form"}, 639 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-', 640 "Disable name checks when matching DANE-EE(3) TLSA records"}, 641 {"reconnect", OPT_RECONNECT, '-', 642 "Drop and re-make the connection with the same Session-ID"}, 643 {"showcerts", OPT_SHOWCERTS, '-', 644 "Show all certificates sent by the server"}, 645 {"debug", OPT_DEBUG, '-', "Extra output"}, 646 {"msg", OPT_MSG, '-', "Show protocol messages"}, 647 {"msgfile", OPT_MSGFILE, '>', 648 "File to send output of -msg or -trace, instead of stdout"}, 649 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"}, 650 {"state", OPT_STATE, '-', "Print the ssl states"}, 651 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, 652 {"quiet", OPT_QUIET, '-', "No s_client output"}, 653 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"}, 654 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"}, 655 {"starttls", OPT_STARTTLS, 's', 656 "Use the appropriate STARTTLS command before starting TLS"}, 657 {"xmpphost", OPT_XMPPHOST, 's', 658 "Alias of -name option for \"-starttls xmpp[-server]\""}, 659 OPT_R_OPTIONS, 660 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"}, 661 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"}, 662 #ifndef OPENSSL_NO_SRTP 663 {"use_srtp", OPT_USE_SRTP, 's', 664 "Offer SRTP key management with a colon-separated profile list"}, 665 #endif 666 {"keymatexport", OPT_KEYMATEXPORT, 's', 667 "Export keying material using label"}, 668 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', 669 "Export len bytes of keying material (default 20)"}, 670 {"maxfraglen", OPT_MAXFRAGLEN, 'p', 671 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"}, 672 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"}, 673 {"name", OPT_PROTOHOST, 's', 674 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""}, 675 {"CRL", OPT_CRL, '<', "CRL file to use"}, 676 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"}, 677 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"}, 678 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-', 679 "Close connection on verification error"}, 680 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"}, 681 {"brief", OPT_BRIEF, '-', 682 "Restrict output to brief summary of connection parameters"}, 683 {"prexit", OPT_PREXIT, '-', 684 "Print session information when the program exits"}, 685 {"security_debug", OPT_SECURITY_DEBUG, '-', 686 "Enable security debug messages"}, 687 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-', 688 "Output more security debug output"}, 689 {"cert_chain", OPT_CERT_CHAIN, '<', 690 "Certificate chain file (in PEM format)"}, 691 {"chainCApath", OPT_CHAINCAPATH, '/', 692 "Use dir as certificate store path to build CA certificate chain"}, 693 {"verifyCApath", OPT_VERIFYCAPATH, '/', 694 "Use dir as certificate store path to verify CA certificate"}, 695 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"}, 696 {"chainCAfile", OPT_CHAINCAFILE, '<', 697 "CA file for certificate chain (PEM format)"}, 698 {"verifyCAfile", OPT_VERIFYCAFILE, '<', 699 "CA file for certificate verification (PEM format)"}, 700 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"}, 701 {"servername", OPT_SERVERNAME, 's', 702 "Set TLS extension servername (SNI) in ClientHello (default)"}, 703 {"noservername", OPT_NOSERVERNAME, '-', 704 "Do not send the server name (SNI) extension in the ClientHello"}, 705 {"tlsextdebug", OPT_TLSEXTDEBUG, '-', 706 "Hex dump of all TLS extensions received"}, 707 #ifndef OPENSSL_NO_OCSP 708 {"status", OPT_STATUS, '-', "Request certificate status from server"}, 709 #endif 710 {"serverinfo", OPT_SERVERINFO, 's', 711 "types Send empty ClientHello extensions (comma-separated numbers)"}, 712 {"alpn", OPT_ALPN, 's', 713 "Enable ALPN extension, considering named protocols supported (comma-separated list)"}, 714 {"async", OPT_ASYNC, '-', "Support asynchronous operation"}, 715 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"}, 716 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "}, 717 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p', 718 "Size used to split data for encrypt pipelines"}, 719 {"max_pipelines", OPT_MAX_PIPELINES, 'p', 720 "Maximum number of encrypt/decrypt pipelines to be used"}, 721 {"read_buf", OPT_READ_BUF, 'p', 722 "Default read buffer size to be used for connections"}, 723 OPT_S_OPTIONS, 724 OPT_V_OPTIONS, 725 OPT_X_OPTIONS, 726 #ifndef OPENSSL_NO_SSL3 727 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"}, 728 #endif 729 #ifndef OPENSSL_NO_TLS1 730 {"tls1", OPT_TLS1, '-', "Just use TLSv1"}, 731 #endif 732 #ifndef OPENSSL_NO_TLS1_1 733 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"}, 734 #endif 735 #ifndef OPENSSL_NO_TLS1_2 736 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"}, 737 #endif 738 #ifndef OPENSSL_NO_TLS1_3 739 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"}, 740 #endif 741 #ifndef OPENSSL_NO_DTLS 742 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"}, 743 {"timeout", OPT_TIMEOUT, '-', 744 "Enable send/receive timeout on DTLS connections"}, 745 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"}, 746 #endif 747 #ifndef OPENSSL_NO_DTLS1 748 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"}, 749 #endif 750 #ifndef OPENSSL_NO_DTLS1_2 751 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"}, 752 #endif 753 #ifndef OPENSSL_NO_SCTP 754 {"sctp", OPT_SCTP, '-', "Use SCTP"}, 755 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"}, 756 #endif 757 #ifndef OPENSSL_NO_SSL_TRACE 758 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"}, 759 #endif 760 #ifdef WATT32 761 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"}, 762 #endif 763 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, 764 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"}, 765 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, 766 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"}, 767 #ifndef OPENSSL_NO_SRP 768 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"}, 769 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"}, 770 {"srp_lateuser", OPT_SRP_LATEUSER, '-', 771 "SRP username into second ClientHello message"}, 772 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-', 773 "Tolerate other than the known g N values."}, 774 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"}, 775 #endif 776 #ifndef OPENSSL_NO_NEXTPROTONEG 777 {"nextprotoneg", OPT_NEXTPROTONEG, 's', 778 "Enable NPN extension, considering named protocols supported (comma-separated list)"}, 779 #endif 780 #ifndef OPENSSL_NO_ENGINE 781 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 782 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's', 783 "Specify engine to be used for client certificate operations"}, 784 #endif 785 #ifndef OPENSSL_NO_CT 786 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"}, 787 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"}, 788 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"}, 789 #endif 790 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"}, 791 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"}, 792 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"}, 793 {NULL, OPT_EOF, 0x00, NULL} 794 }; 795 796 typedef enum PROTOCOL_choice { 797 PROTO_OFF, 798 PROTO_SMTP, 799 PROTO_POP3, 800 PROTO_IMAP, 801 PROTO_FTP, 802 PROTO_TELNET, 803 PROTO_XMPP, 804 PROTO_XMPP_SERVER, 805 PROTO_CONNECT, 806 PROTO_IRC, 807 PROTO_MYSQL, 808 PROTO_POSTGRES, 809 PROTO_LMTP, 810 PROTO_NNTP, 811 PROTO_SIEVE, 812 PROTO_LDAP 813 } PROTOCOL_CHOICE; 814 815 static const OPT_PAIR services[] = { 816 {"smtp", PROTO_SMTP}, 817 {"pop3", PROTO_POP3}, 818 {"imap", PROTO_IMAP}, 819 {"ftp", PROTO_FTP}, 820 {"xmpp", PROTO_XMPP}, 821 {"xmpp-server", PROTO_XMPP_SERVER}, 822 {"telnet", PROTO_TELNET}, 823 {"irc", PROTO_IRC}, 824 {"mysql", PROTO_MYSQL}, 825 {"postgres", PROTO_POSTGRES}, 826 {"lmtp", PROTO_LMTP}, 827 {"nntp", PROTO_NNTP}, 828 {"sieve", PROTO_SIEVE}, 829 {"ldap", PROTO_LDAP}, 830 {NULL, 0} 831 }; 832 833 #define IS_INET_FLAG(o) \ 834 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT) 835 #define IS_UNIX_FLAG(o) (o == OPT_UNIX) 836 837 #define IS_PROT_FLAG(o) \ 838 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \ 839 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2) 840 841 /* Free |*dest| and optionally set it to a copy of |source|. */ 842 static void freeandcopy(char **dest, const char *source) 843 { 844 OPENSSL_free(*dest); 845 *dest = NULL; 846 if (source != NULL) 847 *dest = OPENSSL_strdup(source); 848 } 849 850 static int new_session_cb(SSL *s, SSL_SESSION *sess) 851 { 852 853 if (sess_out != NULL) { 854 BIO *stmp = BIO_new_file(sess_out, "w"); 855 856 if (stmp == NULL) { 857 BIO_printf(bio_err, "Error writing session file %s\n", sess_out); 858 } else { 859 PEM_write_bio_SSL_SESSION(stmp, sess); 860 BIO_free(stmp); 861 } 862 } 863 864 /* 865 * Session data gets dumped on connection for TLSv1.2 and below, and on 866 * arrival of the NewSessionTicket for TLSv1.3. 867 */ 868 if (SSL_version(s) == TLS1_3_VERSION) { 869 BIO_printf(bio_c_out, 870 "---\nPost-Handshake New Session Ticket arrived:\n"); 871 SSL_SESSION_print(bio_c_out, sess); 872 BIO_printf(bio_c_out, "---\n"); 873 } 874 875 /* 876 * We always return a "fail" response so that the session gets freed again 877 * because we haven't used the reference. 878 */ 879 return 0; 880 } 881 882 int s_client_main(int argc, char **argv) 883 { 884 BIO *sbio; 885 EVP_PKEY *key = NULL; 886 SSL *con = NULL; 887 SSL_CTX *ctx = NULL; 888 STACK_OF(X509) *chain = NULL; 889 X509 *cert = NULL; 890 X509_VERIFY_PARAM *vpm = NULL; 891 SSL_EXCERT *exc = NULL; 892 SSL_CONF_CTX *cctx = NULL; 893 STACK_OF(OPENSSL_STRING) *ssl_args = NULL; 894 char *dane_tlsa_domain = NULL; 895 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL; 896 int dane_ee_no_name = 0; 897 STACK_OF(X509_CRL) *crls = NULL; 898 const SSL_METHOD *meth = TLS_client_method(); 899 const char *CApath = NULL, *CAfile = NULL; 900 char *cbuf = NULL, *sbuf = NULL; 901 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL, *bindstr = NULL; 902 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL; 903 char *chCApath = NULL, *chCAfile = NULL, *host = NULL; 904 char *port = OPENSSL_strdup(PORT); 905 char *bindhost = NULL, *bindport = NULL; 906 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL; 907 char *ReqCAfile = NULL; 908 char *sess_in = NULL, *crl_file = NULL, *p; 909 const char *protohost = NULL; 910 struct timeval timeout, *timeoutp; 911 fd_set readfds, writefds; 912 int noCApath = 0, noCAfile = 0; 913 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM; 914 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0; 915 int prexit = 0; 916 int sdebug = 0; 917 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0; 918 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0; 919 int sbuf_len, sbuf_off, cmdletters = 1; 920 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0; 921 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0; 922 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; 923 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 924 int at_eof = 0; 925 #endif 926 int read_buf_len = 0; 927 int fallback_scsv = 0; 928 OPTION_CHOICE o; 929 #ifndef OPENSSL_NO_DTLS 930 int enable_timeouts = 0; 931 long socket_mtu = 0; 932 #endif 933 #ifndef OPENSSL_NO_ENGINE 934 ENGINE *ssl_client_engine = NULL; 935 #endif 936 ENGINE *e = NULL; 937 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 938 struct timeval tv; 939 #endif 940 const char *servername = NULL; 941 int noservername = 0; 942 const char *alpn_in = NULL; 943 tlsextctx tlsextcbp = { NULL, 0 }; 944 const char *ssl_config = NULL; 945 #define MAX_SI_TYPES 100 946 unsigned short serverinfo_types[MAX_SI_TYPES]; 947 int serverinfo_count = 0, start = 0, len; 948 #ifndef OPENSSL_NO_NEXTPROTONEG 949 const char *next_proto_neg_in = NULL; 950 #endif 951 #ifndef OPENSSL_NO_SRP 952 char *srppass = NULL; 953 int srp_lateuser = 0; 954 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; 955 #endif 956 #ifndef OPENSSL_NO_SRTP 957 char *srtp_profiles = NULL; 958 #endif 959 #ifndef OPENSSL_NO_CT 960 char *ctlog_file = NULL; 961 int ct_validation = 0; 962 #endif 963 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0; 964 int async = 0; 965 unsigned int max_send_fragment = 0; 966 unsigned int split_send_fragment = 0, max_pipelines = 0; 967 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown; 968 int count4or6 = 0; 969 uint8_t maxfraglen = 0; 970 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0; 971 int c_tlsextdebug = 0; 972 #ifndef OPENSSL_NO_OCSP 973 int c_status_req = 0; 974 #endif 975 BIO *bio_c_msg = NULL; 976 const char *keylog_file = NULL, *early_data_file = NULL; 977 #ifndef OPENSSL_NO_DTLS 978 int isdtls = 0; 979 #endif 980 char *psksessf = NULL; 981 int enable_pha = 0; 982 #ifndef OPENSSL_NO_SCTP 983 int sctp_label_bug = 0; 984 #endif 985 986 FD_ZERO(&readfds); 987 FD_ZERO(&writefds); 988 /* Known false-positive of MemorySanitizer. */ 989 #if defined(__has_feature) 990 # if __has_feature(memory_sanitizer) 991 __msan_unpoison(&readfds, sizeof(readfds)); 992 __msan_unpoison(&writefds, sizeof(writefds)); 993 # endif 994 #endif 995 996 prog = opt_progname(argv[0]); 997 c_quiet = 0; 998 c_debug = 0; 999 c_showcerts = 0; 1000 c_nbio = 0; 1001 vpm = X509_VERIFY_PARAM_new(); 1002 cctx = SSL_CONF_CTX_new(); 1003 1004 if (vpm == NULL || cctx == NULL) { 1005 BIO_printf(bio_err, "%s: out of memory\n", prog); 1006 goto end; 1007 } 1008 1009 cbuf = app_malloc(BUFSIZZ, "cbuf"); 1010 sbuf = app_malloc(BUFSIZZ, "sbuf"); 1011 mbuf = app_malloc(BUFSIZZ, "mbuf"); 1012 1013 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE); 1014 1015 prog = opt_init(argc, argv, s_client_options); 1016 while ((o = opt_next()) != OPT_EOF) { 1017 /* Check for intermixing flags. */ 1018 if (connect_type == use_unix && IS_INET_FLAG(o)) { 1019 BIO_printf(bio_err, 1020 "%s: Intermixed protocol flags (unix and internet domains)\n", 1021 prog); 1022 goto end; 1023 } 1024 if (connect_type == use_inet && IS_UNIX_FLAG(o)) { 1025 BIO_printf(bio_err, 1026 "%s: Intermixed protocol flags (internet and unix domains)\n", 1027 prog); 1028 goto end; 1029 } 1030 1031 if (IS_PROT_FLAG(o) && ++prot_opt > 1) { 1032 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); 1033 goto end; 1034 } 1035 if (IS_NO_PROT_FLAG(o)) 1036 no_prot_opt++; 1037 if (prot_opt == 1 && no_prot_opt) { 1038 BIO_printf(bio_err, 1039 "Cannot supply both a protocol flag and '-no_<prot>'\n"); 1040 goto end; 1041 } 1042 1043 switch (o) { 1044 case OPT_EOF: 1045 case OPT_ERR: 1046 opthelp: 1047 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 1048 goto end; 1049 case OPT_HELP: 1050 opt_help(s_client_options); 1051 ret = 0; 1052 goto end; 1053 case OPT_4: 1054 connect_type = use_inet; 1055 socket_family = AF_INET; 1056 count4or6++; 1057 break; 1058 #ifdef AF_INET6 1059 case OPT_6: 1060 connect_type = use_inet; 1061 socket_family = AF_INET6; 1062 count4or6++; 1063 break; 1064 #endif 1065 case OPT_HOST: 1066 connect_type = use_inet; 1067 freeandcopy(&host, opt_arg()); 1068 break; 1069 case OPT_PORT: 1070 connect_type = use_inet; 1071 freeandcopy(&port, opt_arg()); 1072 break; 1073 case OPT_CONNECT: 1074 connect_type = use_inet; 1075 freeandcopy(&connectstr, opt_arg()); 1076 break; 1077 case OPT_BIND: 1078 freeandcopy(&bindstr, opt_arg()); 1079 break; 1080 case OPT_PROXY: 1081 proxystr = opt_arg(); 1082 starttls_proto = PROTO_CONNECT; 1083 break; 1084 #ifdef AF_UNIX 1085 case OPT_UNIX: 1086 connect_type = use_unix; 1087 socket_family = AF_UNIX; 1088 freeandcopy(&host, opt_arg()); 1089 break; 1090 #endif 1091 case OPT_XMPPHOST: 1092 /* fall through, since this is an alias */ 1093 case OPT_PROTOHOST: 1094 protohost = opt_arg(); 1095 break; 1096 case OPT_VERIFY: 1097 verify = SSL_VERIFY_PEER; 1098 verify_args.depth = atoi(opt_arg()); 1099 if (!c_quiet) 1100 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth); 1101 break; 1102 case OPT_CERT: 1103 cert_file = opt_arg(); 1104 break; 1105 case OPT_NAMEOPT: 1106 if (!set_nameopt(opt_arg())) 1107 goto end; 1108 break; 1109 case OPT_CRL: 1110 crl_file = opt_arg(); 1111 break; 1112 case OPT_CRL_DOWNLOAD: 1113 crl_download = 1; 1114 break; 1115 case OPT_SESS_OUT: 1116 sess_out = opt_arg(); 1117 break; 1118 case OPT_SESS_IN: 1119 sess_in = opt_arg(); 1120 break; 1121 case OPT_CERTFORM: 1122 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format)) 1123 goto opthelp; 1124 break; 1125 case OPT_CRLFORM: 1126 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) 1127 goto opthelp; 1128 break; 1129 case OPT_VERIFY_RET_ERROR: 1130 verify = SSL_VERIFY_PEER; 1131 verify_args.return_error = 1; 1132 break; 1133 case OPT_VERIFY_QUIET: 1134 verify_args.quiet = 1; 1135 break; 1136 case OPT_BRIEF: 1137 c_brief = verify_args.quiet = c_quiet = 1; 1138 break; 1139 case OPT_S_CASES: 1140 if (ssl_args == NULL) 1141 ssl_args = sk_OPENSSL_STRING_new_null(); 1142 if (ssl_args == NULL 1143 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag()) 1144 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) { 1145 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1146 goto end; 1147 } 1148 break; 1149 case OPT_V_CASES: 1150 if (!opt_verify(o, vpm)) 1151 goto end; 1152 vpmtouched++; 1153 break; 1154 case OPT_X_CASES: 1155 if (!args_excert(o, &exc)) 1156 goto end; 1157 break; 1158 case OPT_PREXIT: 1159 prexit = 1; 1160 break; 1161 case OPT_CRLF: 1162 crlf = 1; 1163 break; 1164 case OPT_QUIET: 1165 c_quiet = c_ign_eof = 1; 1166 break; 1167 case OPT_NBIO: 1168 c_nbio = 1; 1169 break; 1170 case OPT_NOCMDS: 1171 cmdletters = 0; 1172 break; 1173 case OPT_ENGINE: 1174 e = setup_engine(opt_arg(), 1); 1175 break; 1176 case OPT_SSL_CLIENT_ENGINE: 1177 #ifndef OPENSSL_NO_ENGINE 1178 ssl_client_engine = ENGINE_by_id(opt_arg()); 1179 if (ssl_client_engine == NULL) { 1180 BIO_printf(bio_err, "Error getting client auth engine\n"); 1181 goto opthelp; 1182 } 1183 #endif 1184 break; 1185 case OPT_R_CASES: 1186 if (!opt_rand(o)) 1187 goto end; 1188 break; 1189 case OPT_IGN_EOF: 1190 c_ign_eof = 1; 1191 break; 1192 case OPT_NO_IGN_EOF: 1193 c_ign_eof = 0; 1194 break; 1195 case OPT_DEBUG: 1196 c_debug = 1; 1197 break; 1198 case OPT_TLSEXTDEBUG: 1199 c_tlsextdebug = 1; 1200 break; 1201 case OPT_STATUS: 1202 #ifndef OPENSSL_NO_OCSP 1203 c_status_req = 1; 1204 #endif 1205 break; 1206 case OPT_WDEBUG: 1207 #ifdef WATT32 1208 dbug_init(); 1209 #endif 1210 break; 1211 case OPT_MSG: 1212 c_msg = 1; 1213 break; 1214 case OPT_MSGFILE: 1215 bio_c_msg = BIO_new_file(opt_arg(), "w"); 1216 break; 1217 case OPT_TRACE: 1218 #ifndef OPENSSL_NO_SSL_TRACE 1219 c_msg = 2; 1220 #endif 1221 break; 1222 case OPT_SECURITY_DEBUG: 1223 sdebug = 1; 1224 break; 1225 case OPT_SECURITY_DEBUG_VERBOSE: 1226 sdebug = 2; 1227 break; 1228 case OPT_SHOWCERTS: 1229 c_showcerts = 1; 1230 break; 1231 case OPT_NBIO_TEST: 1232 nbio_test = 1; 1233 break; 1234 case OPT_STATE: 1235 state = 1; 1236 break; 1237 case OPT_PSK_IDENTITY: 1238 psk_identity = opt_arg(); 1239 break; 1240 case OPT_PSK: 1241 for (p = psk_key = opt_arg(); *p; p++) { 1242 if (isxdigit(_UC(*p))) 1243 continue; 1244 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key); 1245 goto end; 1246 } 1247 break; 1248 case OPT_PSK_SESS: 1249 psksessf = opt_arg(); 1250 break; 1251 #ifndef OPENSSL_NO_SRP 1252 case OPT_SRPUSER: 1253 srp_arg.srplogin = opt_arg(); 1254 if (min_version < TLS1_VERSION) 1255 min_version = TLS1_VERSION; 1256 break; 1257 case OPT_SRPPASS: 1258 srppass = opt_arg(); 1259 if (min_version < TLS1_VERSION) 1260 min_version = TLS1_VERSION; 1261 break; 1262 case OPT_SRP_STRENGTH: 1263 srp_arg.strength = atoi(opt_arg()); 1264 BIO_printf(bio_err, "SRP minimal length for N is %d\n", 1265 srp_arg.strength); 1266 if (min_version < TLS1_VERSION) 1267 min_version = TLS1_VERSION; 1268 break; 1269 case OPT_SRP_LATEUSER: 1270 srp_lateuser = 1; 1271 if (min_version < TLS1_VERSION) 1272 min_version = TLS1_VERSION; 1273 break; 1274 case OPT_SRP_MOREGROUPS: 1275 srp_arg.amp = 1; 1276 if (min_version < TLS1_VERSION) 1277 min_version = TLS1_VERSION; 1278 break; 1279 #endif 1280 case OPT_SSL_CONFIG: 1281 ssl_config = opt_arg(); 1282 break; 1283 case OPT_SSL3: 1284 min_version = SSL3_VERSION; 1285 max_version = SSL3_VERSION; 1286 socket_type = SOCK_STREAM; 1287 #ifndef OPENSSL_NO_DTLS 1288 isdtls = 0; 1289 #endif 1290 break; 1291 case OPT_TLS1_3: 1292 min_version = TLS1_3_VERSION; 1293 max_version = TLS1_3_VERSION; 1294 socket_type = SOCK_STREAM; 1295 #ifndef OPENSSL_NO_DTLS 1296 isdtls = 0; 1297 #endif 1298 break; 1299 case OPT_TLS1_2: 1300 min_version = TLS1_2_VERSION; 1301 max_version = TLS1_2_VERSION; 1302 socket_type = SOCK_STREAM; 1303 #ifndef OPENSSL_NO_DTLS 1304 isdtls = 0; 1305 #endif 1306 break; 1307 case OPT_TLS1_1: 1308 min_version = TLS1_1_VERSION; 1309 max_version = TLS1_1_VERSION; 1310 socket_type = SOCK_STREAM; 1311 #ifndef OPENSSL_NO_DTLS 1312 isdtls = 0; 1313 #endif 1314 break; 1315 case OPT_TLS1: 1316 min_version = TLS1_VERSION; 1317 max_version = TLS1_VERSION; 1318 socket_type = SOCK_STREAM; 1319 #ifndef OPENSSL_NO_DTLS 1320 isdtls = 0; 1321 #endif 1322 break; 1323 case OPT_DTLS: 1324 #ifndef OPENSSL_NO_DTLS 1325 meth = DTLS_client_method(); 1326 socket_type = SOCK_DGRAM; 1327 isdtls = 1; 1328 #endif 1329 break; 1330 case OPT_DTLS1: 1331 #ifndef OPENSSL_NO_DTLS1 1332 meth = DTLS_client_method(); 1333 min_version = DTLS1_VERSION; 1334 max_version = DTLS1_VERSION; 1335 socket_type = SOCK_DGRAM; 1336 isdtls = 1; 1337 #endif 1338 break; 1339 case OPT_DTLS1_2: 1340 #ifndef OPENSSL_NO_DTLS1_2 1341 meth = DTLS_client_method(); 1342 min_version = DTLS1_2_VERSION; 1343 max_version = DTLS1_2_VERSION; 1344 socket_type = SOCK_DGRAM; 1345 isdtls = 1; 1346 #endif 1347 break; 1348 case OPT_SCTP: 1349 #ifndef OPENSSL_NO_SCTP 1350 protocol = IPPROTO_SCTP; 1351 #endif 1352 break; 1353 case OPT_SCTP_LABEL_BUG: 1354 #ifndef OPENSSL_NO_SCTP 1355 sctp_label_bug = 1; 1356 #endif 1357 break; 1358 case OPT_TIMEOUT: 1359 #ifndef OPENSSL_NO_DTLS 1360 enable_timeouts = 1; 1361 #endif 1362 break; 1363 case OPT_MTU: 1364 #ifndef OPENSSL_NO_DTLS 1365 socket_mtu = atol(opt_arg()); 1366 #endif 1367 break; 1368 case OPT_FALLBACKSCSV: 1369 fallback_scsv = 1; 1370 break; 1371 case OPT_KEYFORM: 1372 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format)) 1373 goto opthelp; 1374 break; 1375 case OPT_PASS: 1376 passarg = opt_arg(); 1377 break; 1378 case OPT_CERT_CHAIN: 1379 chain_file = opt_arg(); 1380 break; 1381 case OPT_KEY: 1382 key_file = opt_arg(); 1383 break; 1384 case OPT_RECONNECT: 1385 reconnect = 5; 1386 break; 1387 case OPT_CAPATH: 1388 CApath = opt_arg(); 1389 break; 1390 case OPT_NOCAPATH: 1391 noCApath = 1; 1392 break; 1393 case OPT_CHAINCAPATH: 1394 chCApath = opt_arg(); 1395 break; 1396 case OPT_VERIFYCAPATH: 1397 vfyCApath = opt_arg(); 1398 break; 1399 case OPT_BUILD_CHAIN: 1400 build_chain = 1; 1401 break; 1402 case OPT_REQCAFILE: 1403 ReqCAfile = opt_arg(); 1404 break; 1405 case OPT_CAFILE: 1406 CAfile = opt_arg(); 1407 break; 1408 case OPT_NOCAFILE: 1409 noCAfile = 1; 1410 break; 1411 #ifndef OPENSSL_NO_CT 1412 case OPT_NOCT: 1413 ct_validation = 0; 1414 break; 1415 case OPT_CT: 1416 ct_validation = 1; 1417 break; 1418 case OPT_CTLOG_FILE: 1419 ctlog_file = opt_arg(); 1420 break; 1421 #endif 1422 case OPT_CHAINCAFILE: 1423 chCAfile = opt_arg(); 1424 break; 1425 case OPT_VERIFYCAFILE: 1426 vfyCAfile = opt_arg(); 1427 break; 1428 case OPT_DANE_TLSA_DOMAIN: 1429 dane_tlsa_domain = opt_arg(); 1430 break; 1431 case OPT_DANE_TLSA_RRDATA: 1432 if (dane_tlsa_rrset == NULL) 1433 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null(); 1434 if (dane_tlsa_rrset == NULL || 1435 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) { 1436 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1437 goto end; 1438 } 1439 break; 1440 case OPT_DANE_EE_NO_NAME: 1441 dane_ee_no_name = 1; 1442 break; 1443 case OPT_NEXTPROTONEG: 1444 #ifndef OPENSSL_NO_NEXTPROTONEG 1445 next_proto_neg_in = opt_arg(); 1446 #endif 1447 break; 1448 case OPT_ALPN: 1449 alpn_in = opt_arg(); 1450 break; 1451 case OPT_SERVERINFO: 1452 p = opt_arg(); 1453 len = strlen(p); 1454 for (start = 0, i = 0; i <= len; ++i) { 1455 if (i == len || p[i] == ',') { 1456 serverinfo_types[serverinfo_count] = atoi(p + start); 1457 if (++serverinfo_count == MAX_SI_TYPES) 1458 break; 1459 start = i + 1; 1460 } 1461 } 1462 break; 1463 case OPT_STARTTLS: 1464 if (!opt_pair(opt_arg(), services, &starttls_proto)) 1465 goto end; 1466 break; 1467 case OPT_SERVERNAME: 1468 servername = opt_arg(); 1469 break; 1470 case OPT_NOSERVERNAME: 1471 noservername = 1; 1472 break; 1473 case OPT_USE_SRTP: 1474 #ifndef OPENSSL_NO_SRTP 1475 srtp_profiles = opt_arg(); 1476 #endif 1477 break; 1478 case OPT_KEYMATEXPORT: 1479 keymatexportlabel = opt_arg(); 1480 break; 1481 case OPT_KEYMATEXPORTLEN: 1482 keymatexportlen = atoi(opt_arg()); 1483 break; 1484 case OPT_ASYNC: 1485 async = 1; 1486 break; 1487 case OPT_MAXFRAGLEN: 1488 len = atoi(opt_arg()); 1489 switch (len) { 1490 case 512: 1491 maxfraglen = TLSEXT_max_fragment_length_512; 1492 break; 1493 case 1024: 1494 maxfraglen = TLSEXT_max_fragment_length_1024; 1495 break; 1496 case 2048: 1497 maxfraglen = TLSEXT_max_fragment_length_2048; 1498 break; 1499 case 4096: 1500 maxfraglen = TLSEXT_max_fragment_length_4096; 1501 break; 1502 default: 1503 BIO_printf(bio_err, 1504 "%s: Max Fragment Len %u is out of permitted values", 1505 prog, len); 1506 goto opthelp; 1507 } 1508 break; 1509 case OPT_MAX_SEND_FRAG: 1510 max_send_fragment = atoi(opt_arg()); 1511 break; 1512 case OPT_SPLIT_SEND_FRAG: 1513 split_send_fragment = atoi(opt_arg()); 1514 break; 1515 case OPT_MAX_PIPELINES: 1516 max_pipelines = atoi(opt_arg()); 1517 break; 1518 case OPT_READ_BUF: 1519 read_buf_len = atoi(opt_arg()); 1520 break; 1521 case OPT_KEYLOG_FILE: 1522 keylog_file = opt_arg(); 1523 break; 1524 case OPT_EARLY_DATA: 1525 early_data_file = opt_arg(); 1526 break; 1527 case OPT_ENABLE_PHA: 1528 enable_pha = 1; 1529 break; 1530 } 1531 } 1532 if (count4or6 >= 2) { 1533 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog); 1534 goto opthelp; 1535 } 1536 if (noservername) { 1537 if (servername != NULL) { 1538 BIO_printf(bio_err, 1539 "%s: Can't use -servername and -noservername together\n", 1540 prog); 1541 goto opthelp; 1542 } 1543 if (dane_tlsa_domain != NULL) { 1544 BIO_printf(bio_err, 1545 "%s: Can't use -dane_tlsa_domain and -noservername together\n", 1546 prog); 1547 goto opthelp; 1548 } 1549 } 1550 argc = opt_num_rest(); 1551 if (argc == 1) { 1552 /* If there's a positional argument, it's the equivalent of 1553 * OPT_CONNECT. 1554 * Don't allow -connect and a separate argument. 1555 */ 1556 if (connectstr != NULL) { 1557 BIO_printf(bio_err, 1558 "%s: must not provide both -connect option and target parameter\n", 1559 prog); 1560 goto opthelp; 1561 } 1562 connect_type = use_inet; 1563 freeandcopy(&connectstr, *opt_rest()); 1564 } else if (argc != 0) { 1565 goto opthelp; 1566 } 1567 1568 #ifndef OPENSSL_NO_NEXTPROTONEG 1569 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) { 1570 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n"); 1571 goto opthelp; 1572 } 1573 #endif 1574 if (proxystr != NULL) { 1575 int res; 1576 char *tmp_host = host, *tmp_port = port; 1577 if (connectstr == NULL) { 1578 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog); 1579 goto opthelp; 1580 } 1581 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST); 1582 if (tmp_host != host) 1583 OPENSSL_free(tmp_host); 1584 if (tmp_port != port) 1585 OPENSSL_free(tmp_port); 1586 if (!res) { 1587 BIO_printf(bio_err, 1588 "%s: -proxy argument malformed or ambiguous\n", prog); 1589 goto end; 1590 } 1591 } else { 1592 int res = 1; 1593 char *tmp_host = host, *tmp_port = port; 1594 if (connectstr != NULL) 1595 res = BIO_parse_hostserv(connectstr, &host, &port, 1596 BIO_PARSE_PRIO_HOST); 1597 if (tmp_host != host) 1598 OPENSSL_free(tmp_host); 1599 if (tmp_port != port) 1600 OPENSSL_free(tmp_port); 1601 if (!res) { 1602 BIO_printf(bio_err, 1603 "%s: -connect argument or target parameter malformed or ambiguous\n", 1604 prog); 1605 goto end; 1606 } 1607 } 1608 1609 if (bindstr != NULL) { 1610 int res; 1611 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport, 1612 BIO_PARSE_PRIO_HOST); 1613 if (!res) { 1614 BIO_printf(bio_err, 1615 "%s: -bind argument parameter malformed or ambiguous\n", 1616 prog); 1617 goto end; 1618 } 1619 } 1620 1621 #ifdef AF_UNIX 1622 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) { 1623 BIO_printf(bio_err, 1624 "Can't use unix sockets and datagrams together\n"); 1625 goto end; 1626 } 1627 #endif 1628 1629 #ifndef OPENSSL_NO_SCTP 1630 if (protocol == IPPROTO_SCTP) { 1631 if (socket_type != SOCK_DGRAM) { 1632 BIO_printf(bio_err, "Can't use -sctp without DTLS\n"); 1633 goto end; 1634 } 1635 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */ 1636 socket_type = SOCK_STREAM; 1637 } 1638 #endif 1639 1640 #if !defined(OPENSSL_NO_NEXTPROTONEG) 1641 next_proto.status = -1; 1642 if (next_proto_neg_in) { 1643 next_proto.data = 1644 next_protos_parse(&next_proto.len, next_proto_neg_in); 1645 if (next_proto.data == NULL) { 1646 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1647 goto end; 1648 } 1649 } else 1650 next_proto.data = NULL; 1651 #endif 1652 1653 if (!app_passwd(passarg, NULL, &pass, NULL)) { 1654 BIO_printf(bio_err, "Error getting password\n"); 1655 goto end; 1656 } 1657 1658 if (key_file == NULL) 1659 key_file = cert_file; 1660 1661 if (key_file != NULL) { 1662 key = load_key(key_file, key_format, 0, pass, e, 1663 "client certificate private key file"); 1664 if (key == NULL) { 1665 ERR_print_errors(bio_err); 1666 goto end; 1667 } 1668 } 1669 1670 if (cert_file != NULL) { 1671 cert = load_cert(cert_file, cert_format, "client certificate file"); 1672 if (cert == NULL) { 1673 ERR_print_errors(bio_err); 1674 goto end; 1675 } 1676 } 1677 1678 if (chain_file != NULL) { 1679 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL, 1680 "client certificate chain")) 1681 goto end; 1682 } 1683 1684 if (crl_file != NULL) { 1685 X509_CRL *crl; 1686 crl = load_crl(crl_file, crl_format); 1687 if (crl == NULL) { 1688 BIO_puts(bio_err, "Error loading CRL\n"); 1689 ERR_print_errors(bio_err); 1690 goto end; 1691 } 1692 crls = sk_X509_CRL_new_null(); 1693 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { 1694 BIO_puts(bio_err, "Error adding CRL\n"); 1695 ERR_print_errors(bio_err); 1696 X509_CRL_free(crl); 1697 goto end; 1698 } 1699 } 1700 1701 if (!load_excert(&exc)) 1702 goto end; 1703 1704 if (bio_c_out == NULL) { 1705 if (c_quiet && !c_debug) { 1706 bio_c_out = BIO_new(BIO_s_null()); 1707 if (c_msg && bio_c_msg == NULL) 1708 bio_c_msg = dup_bio_out(FORMAT_TEXT); 1709 } else if (bio_c_out == NULL) 1710 bio_c_out = dup_bio_out(FORMAT_TEXT); 1711 } 1712 #ifndef OPENSSL_NO_SRP 1713 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) { 1714 BIO_printf(bio_err, "Error getting password\n"); 1715 goto end; 1716 } 1717 #endif 1718 1719 ctx = SSL_CTX_new(meth); 1720 if (ctx == NULL) { 1721 ERR_print_errors(bio_err); 1722 goto end; 1723 } 1724 1725 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 1726 1727 if (sdebug) 1728 ssl_ctx_security_debug(ctx, sdebug); 1729 1730 if (!config_ctx(cctx, ssl_args, ctx)) 1731 goto end; 1732 1733 if (ssl_config != NULL) { 1734 if (SSL_CTX_config(ctx, ssl_config) == 0) { 1735 BIO_printf(bio_err, "Error using configuration \"%s\"\n", 1736 ssl_config); 1737 ERR_print_errors(bio_err); 1738 goto end; 1739 } 1740 } 1741 1742 #ifndef OPENSSL_NO_SCTP 1743 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1) 1744 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG); 1745 #endif 1746 1747 if (min_version != 0 1748 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0) 1749 goto end; 1750 if (max_version != 0 1751 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0) 1752 goto end; 1753 1754 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { 1755 BIO_printf(bio_err, "Error setting verify params\n"); 1756 ERR_print_errors(bio_err); 1757 goto end; 1758 } 1759 1760 if (async) { 1761 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); 1762 } 1763 1764 if (max_send_fragment > 0 1765 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) { 1766 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n", 1767 prog, max_send_fragment); 1768 goto end; 1769 } 1770 1771 if (split_send_fragment > 0 1772 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) { 1773 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n", 1774 prog, split_send_fragment); 1775 goto end; 1776 } 1777 1778 if (max_pipelines > 0 1779 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) { 1780 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n", 1781 prog, max_pipelines); 1782 goto end; 1783 } 1784 1785 if (read_buf_len > 0) { 1786 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); 1787 } 1788 1789 if (maxfraglen > 0 1790 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) { 1791 BIO_printf(bio_err, 1792 "%s: Max Fragment Length code %u is out of permitted values" 1793 "\n", prog, maxfraglen); 1794 goto end; 1795 } 1796 1797 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, 1798 crls, crl_download)) { 1799 BIO_printf(bio_err, "Error loading store locations\n"); 1800 ERR_print_errors(bio_err); 1801 goto end; 1802 } 1803 if (ReqCAfile != NULL) { 1804 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null(); 1805 1806 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) { 1807 sk_X509_NAME_pop_free(nm, X509_NAME_free); 1808 BIO_printf(bio_err, "Error loading CA names\n"); 1809 ERR_print_errors(bio_err); 1810 goto end; 1811 } 1812 SSL_CTX_set0_CA_list(ctx, nm); 1813 } 1814 #ifndef OPENSSL_NO_ENGINE 1815 if (ssl_client_engine) { 1816 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { 1817 BIO_puts(bio_err, "Error setting client auth engine\n"); 1818 ERR_print_errors(bio_err); 1819 ENGINE_free(ssl_client_engine); 1820 goto end; 1821 } 1822 ENGINE_free(ssl_client_engine); 1823 } 1824 #endif 1825 1826 #ifndef OPENSSL_NO_PSK 1827 if (psk_key != NULL) { 1828 if (c_debug) 1829 BIO_printf(bio_c_out, "PSK key given, setting client callback\n"); 1830 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1831 } 1832 #endif 1833 if (psksessf != NULL) { 1834 BIO *stmp = BIO_new_file(psksessf, "r"); 1835 1836 if (stmp == NULL) { 1837 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf); 1838 ERR_print_errors(bio_err); 1839 goto end; 1840 } 1841 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1842 BIO_free(stmp); 1843 if (psksess == NULL) { 1844 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf); 1845 ERR_print_errors(bio_err); 1846 goto end; 1847 } 1848 } 1849 if (psk_key != NULL || psksess != NULL) 1850 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb); 1851 1852 #ifndef OPENSSL_NO_SRTP 1853 if (srtp_profiles != NULL) { 1854 /* Returns 0 on success! */ 1855 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { 1856 BIO_printf(bio_err, "Error setting SRTP profile\n"); 1857 ERR_print_errors(bio_err); 1858 goto end; 1859 } 1860 } 1861 #endif 1862 1863 if (exc != NULL) 1864 ssl_ctx_set_excert(ctx, exc); 1865 1866 #if !defined(OPENSSL_NO_NEXTPROTONEG) 1867 if (next_proto.data != NULL) 1868 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1869 #endif 1870 if (alpn_in) { 1871 size_t alpn_len; 1872 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); 1873 1874 if (alpn == NULL) { 1875 BIO_printf(bio_err, "Error parsing -alpn argument\n"); 1876 goto end; 1877 } 1878 /* Returns 0 on success! */ 1879 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) { 1880 BIO_printf(bio_err, "Error setting ALPN\n"); 1881 goto end; 1882 } 1883 OPENSSL_free(alpn); 1884 } 1885 1886 for (i = 0; i < serverinfo_count; i++) { 1887 if (!SSL_CTX_add_client_custom_ext(ctx, 1888 serverinfo_types[i], 1889 NULL, NULL, NULL, 1890 serverinfo_cli_parse_cb, NULL)) { 1891 BIO_printf(bio_err, 1892 "Warning: Unable to add custom extension %u, skipping\n", 1893 serverinfo_types[i]); 1894 } 1895 } 1896 1897 if (state) 1898 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1899 1900 #ifndef OPENSSL_NO_CT 1901 /* Enable SCT processing, without early connection termination */ 1902 if (ct_validation && 1903 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) { 1904 ERR_print_errors(bio_err); 1905 goto end; 1906 } 1907 1908 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) { 1909 if (ct_validation) { 1910 ERR_print_errors(bio_err); 1911 goto end; 1912 } 1913 1914 /* 1915 * If CT validation is not enabled, the log list isn't needed so don't 1916 * show errors or abort. We try to load it regardless because then we 1917 * can show the names of the logs any SCTs came from (SCTs may be seen 1918 * even with validation disabled). 1919 */ 1920 ERR_clear_error(); 1921 } 1922 #endif 1923 1924 SSL_CTX_set_verify(ctx, verify, verify_callback); 1925 1926 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) { 1927 ERR_print_errors(bio_err); 1928 goto end; 1929 } 1930 1931 ssl_ctx_add_crls(ctx, crls, crl_download); 1932 1933 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain)) 1934 goto end; 1935 1936 if (!noservername) { 1937 tlsextcbp.biodebug = bio_err; 1938 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1939 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1940 } 1941 # ifndef OPENSSL_NO_SRP 1942 if (srp_arg.srplogin) { 1943 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { 1944 BIO_printf(bio_err, "Unable to set SRP username\n"); 1945 goto end; 1946 } 1947 srp_arg.msg = c_msg; 1948 srp_arg.debug = c_debug; 1949 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); 1950 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1951 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1952 if (c_msg || c_debug || srp_arg.amp == 0) 1953 SSL_CTX_set_srp_verify_param_callback(ctx, 1954 ssl_srp_verify_param_cb); 1955 } 1956 # endif 1957 1958 if (dane_tlsa_domain != NULL) { 1959 if (SSL_CTX_dane_enable(ctx) <= 0) { 1960 BIO_printf(bio_err, 1961 "%s: Error enabling DANE TLSA authentication.\n", 1962 prog); 1963 ERR_print_errors(bio_err); 1964 goto end; 1965 } 1966 } 1967 1968 /* 1969 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can 1970 * come at any time. Therefore we use a callback to write out the session 1971 * when we know about it. This approach works for < TLSv1.3 as well. 1972 */ 1973 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT 1974 | SSL_SESS_CACHE_NO_INTERNAL_STORE); 1975 SSL_CTX_sess_set_new_cb(ctx, new_session_cb); 1976 1977 if (set_keylog_file(ctx, keylog_file)) 1978 goto end; 1979 1980 con = SSL_new(ctx); 1981 if (con == NULL) 1982 goto end; 1983 1984 if (enable_pha) 1985 SSL_set_post_handshake_auth(con, 1); 1986 1987 if (sess_in != NULL) { 1988 SSL_SESSION *sess; 1989 BIO *stmp = BIO_new_file(sess_in, "r"); 1990 if (stmp == NULL) { 1991 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1992 ERR_print_errors(bio_err); 1993 goto end; 1994 } 1995 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1996 BIO_free(stmp); 1997 if (sess == NULL) { 1998 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1999 ERR_print_errors(bio_err); 2000 goto end; 2001 } 2002 if (!SSL_set_session(con, sess)) { 2003 BIO_printf(bio_err, "Can't set session\n"); 2004 ERR_print_errors(bio_err); 2005 goto end; 2006 } 2007 2008 SSL_SESSION_free(sess); 2009 } 2010 2011 if (fallback_scsv) 2012 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 2013 2014 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) { 2015 if (servername == NULL) { 2016 if(host == NULL || is_dNS_name(host)) 2017 servername = (host == NULL) ? "localhost" : host; 2018 } 2019 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) { 2020 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 2021 ERR_print_errors(bio_err); 2022 goto end; 2023 } 2024 } 2025 2026 if (dane_tlsa_domain != NULL) { 2027 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) { 2028 BIO_printf(bio_err, "%s: Error enabling DANE TLSA " 2029 "authentication.\n", prog); 2030 ERR_print_errors(bio_err); 2031 goto end; 2032 } 2033 if (dane_tlsa_rrset == NULL) { 2034 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at " 2035 "least one -dane_tlsa_rrdata option.\n", prog); 2036 goto end; 2037 } 2038 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) { 2039 BIO_printf(bio_err, "%s: Failed to import any TLSA " 2040 "records.\n", prog); 2041 goto end; 2042 } 2043 if (dane_ee_no_name) 2044 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS); 2045 } else if (dane_tlsa_rrset != NULL) { 2046 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the " 2047 "-dane_tlsa_domain option.\n", prog); 2048 goto end; 2049 } 2050 2051 re_start: 2052 if (init_client(&s, host, port, bindhost, bindport, socket_family, 2053 socket_type, protocol) == 0) { 2054 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); 2055 BIO_closesocket(s); 2056 goto end; 2057 } 2058 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 2059 2060 if (c_nbio) { 2061 if (!BIO_socket_nbio(s, 1)) { 2062 ERR_print_errors(bio_err); 2063 goto end; 2064 } 2065 BIO_printf(bio_c_out, "Turned on non blocking io\n"); 2066 } 2067 #ifndef OPENSSL_NO_DTLS 2068 if (isdtls) { 2069 union BIO_sock_info_u peer_info; 2070 2071 #ifndef OPENSSL_NO_SCTP 2072 if (protocol == IPPROTO_SCTP) 2073 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE); 2074 else 2075 #endif 2076 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 2077 2078 if ((peer_info.addr = BIO_ADDR_new()) == NULL) { 2079 BIO_printf(bio_err, "memory allocation failure\n"); 2080 BIO_closesocket(s); 2081 goto end; 2082 } 2083 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) { 2084 BIO_printf(bio_err, "getsockname:errno=%d\n", 2085 get_last_socket_error()); 2086 BIO_ADDR_free(peer_info.addr); 2087 BIO_closesocket(s); 2088 goto end; 2089 } 2090 2091 (void)BIO_ctrl_set_connected(sbio, peer_info.addr); 2092 BIO_ADDR_free(peer_info.addr); 2093 peer_info.addr = NULL; 2094 2095 if (enable_timeouts) { 2096 timeout.tv_sec = 0; 2097 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 2098 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 2099 2100 timeout.tv_sec = 0; 2101 timeout.tv_usec = DGRAM_SND_TIMEOUT; 2102 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 2103 } 2104 2105 if (socket_mtu) { 2106 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 2107 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 2108 DTLS_get_link_min_mtu(con)); 2109 BIO_free(sbio); 2110 goto shut; 2111 } 2112 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 2113 if (!DTLS_set_link_mtu(con, socket_mtu)) { 2114 BIO_printf(bio_err, "Failed to set MTU\n"); 2115 BIO_free(sbio); 2116 goto shut; 2117 } 2118 } else { 2119 /* want to do MTU discovery */ 2120 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 2121 } 2122 } else 2123 #endif /* OPENSSL_NO_DTLS */ 2124 sbio = BIO_new_socket(s, BIO_NOCLOSE); 2125 2126 if (nbio_test) { 2127 BIO *test; 2128 2129 test = BIO_new(BIO_f_nbio_test()); 2130 sbio = BIO_push(test, sbio); 2131 } 2132 2133 if (c_debug) { 2134 BIO_set_callback(sbio, bio_dump_callback); 2135 BIO_set_callback_arg(sbio, (char *)bio_c_out); 2136 } 2137 if (c_msg) { 2138 #ifndef OPENSSL_NO_SSL_TRACE 2139 if (c_msg == 2) 2140 SSL_set_msg_callback(con, SSL_trace); 2141 else 2142 #endif 2143 SSL_set_msg_callback(con, msg_cb); 2144 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out); 2145 } 2146 2147 if (c_tlsextdebug) { 2148 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2149 SSL_set_tlsext_debug_arg(con, bio_c_out); 2150 } 2151 #ifndef OPENSSL_NO_OCSP 2152 if (c_status_req) { 2153 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 2154 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 2155 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 2156 } 2157 #endif 2158 2159 SSL_set_bio(con, sbio, sbio); 2160 SSL_set_connect_state(con); 2161 2162 /* ok, lets connect */ 2163 if (fileno_stdin() > SSL_get_fd(con)) 2164 width = fileno_stdin() + 1; 2165 else 2166 width = SSL_get_fd(con) + 1; 2167 2168 read_tty = 1; 2169 write_tty = 0; 2170 tty_on = 0; 2171 read_ssl = 1; 2172 write_ssl = 1; 2173 2174 cbuf_len = 0; 2175 cbuf_off = 0; 2176 sbuf_len = 0; 2177 sbuf_off = 0; 2178 2179 switch ((PROTOCOL_CHOICE) starttls_proto) { 2180 case PROTO_OFF: 2181 break; 2182 case PROTO_LMTP: 2183 case PROTO_SMTP: 2184 { 2185 /* 2186 * This is an ugly hack that does a lot of assumptions. We do 2187 * have to handle multi-line responses which may come in a single 2188 * packet or not. We therefore have to use BIO_gets() which does 2189 * need a buffering BIO. So during the initial chitchat we do 2190 * push a buffering BIO into the chain that is removed again 2191 * later on to not disturb the rest of the s_client operation. 2192 */ 2193 int foundit = 0; 2194 BIO *fbio = BIO_new(BIO_f_buffer()); 2195 2196 BIO_push(fbio, sbio); 2197 /* Wait for multi-line response to end from LMTP or SMTP */ 2198 do { 2199 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2200 } while (mbuf_len > 3 && mbuf[3] == '-'); 2201 if (protohost == NULL) 2202 protohost = "mail.example.com"; 2203 if (starttls_proto == (int)PROTO_LMTP) 2204 BIO_printf(fbio, "LHLO %s\r\n", protohost); 2205 else 2206 BIO_printf(fbio, "EHLO %s\r\n", protohost); 2207 (void)BIO_flush(fbio); 2208 /* 2209 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP 2210 * response. 2211 */ 2212 do { 2213 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2214 if (strstr(mbuf, "STARTTLS")) 2215 foundit = 1; 2216 } while (mbuf_len > 3 && mbuf[3] == '-'); 2217 (void)BIO_flush(fbio); 2218 BIO_pop(fbio); 2219 BIO_free(fbio); 2220 if (!foundit) 2221 BIO_printf(bio_err, 2222 "Didn't find STARTTLS in server response," 2223 " trying anyway...\n"); 2224 BIO_printf(sbio, "STARTTLS\r\n"); 2225 BIO_read(sbio, sbuf, BUFSIZZ); 2226 } 2227 break; 2228 case PROTO_POP3: 2229 { 2230 BIO_read(sbio, mbuf, BUFSIZZ); 2231 BIO_printf(sbio, "STLS\r\n"); 2232 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ); 2233 if (mbuf_len < 0) { 2234 BIO_printf(bio_err, "BIO_read failed\n"); 2235 goto end; 2236 } 2237 } 2238 break; 2239 case PROTO_IMAP: 2240 { 2241 int foundit = 0; 2242 BIO *fbio = BIO_new(BIO_f_buffer()); 2243 2244 BIO_push(fbio, sbio); 2245 BIO_gets(fbio, mbuf, BUFSIZZ); 2246 /* STARTTLS command requires CAPABILITY... */ 2247 BIO_printf(fbio, ". CAPABILITY\r\n"); 2248 (void)BIO_flush(fbio); 2249 /* wait for multi-line CAPABILITY response */ 2250 do { 2251 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2252 if (strstr(mbuf, "STARTTLS")) 2253 foundit = 1; 2254 } 2255 while (mbuf_len > 3 && mbuf[0] != '.'); 2256 (void)BIO_flush(fbio); 2257 BIO_pop(fbio); 2258 BIO_free(fbio); 2259 if (!foundit) 2260 BIO_printf(bio_err, 2261 "Didn't find STARTTLS in server response," 2262 " trying anyway...\n"); 2263 BIO_printf(sbio, ". STARTTLS\r\n"); 2264 BIO_read(sbio, sbuf, BUFSIZZ); 2265 } 2266 break; 2267 case PROTO_FTP: 2268 { 2269 BIO *fbio = BIO_new(BIO_f_buffer()); 2270 2271 BIO_push(fbio, sbio); 2272 /* wait for multi-line response to end from FTP */ 2273 do { 2274 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2275 } 2276 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' ')); 2277 (void)BIO_flush(fbio); 2278 BIO_pop(fbio); 2279 BIO_free(fbio); 2280 BIO_printf(sbio, "AUTH TLS\r\n"); 2281 BIO_read(sbio, sbuf, BUFSIZZ); 2282 } 2283 break; 2284 case PROTO_XMPP: 2285 case PROTO_XMPP_SERVER: 2286 { 2287 int seen = 0; 2288 BIO_printf(sbio, "<stream:stream " 2289 "xmlns:stream='http://etherx.jabber.org/streams' " 2290 "xmlns='jabber:%s' to='%s' version='1.0'>", 2291 starttls_proto == PROTO_XMPP ? "client" : "server", 2292 protohost ? protohost : host); 2293 seen = BIO_read(sbio, mbuf, BUFSIZZ); 2294 if (seen < 0) { 2295 BIO_printf(bio_err, "BIO_read failed\n"); 2296 goto end; 2297 } 2298 mbuf[seen] = '\0'; 2299 while (!strstr 2300 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") 2301 && !strstr(mbuf, 2302 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) 2303 { 2304 seen = BIO_read(sbio, mbuf, BUFSIZZ); 2305 2306 if (seen <= 0) 2307 goto shut; 2308 2309 mbuf[seen] = '\0'; 2310 } 2311 BIO_printf(sbio, 2312 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 2313 seen = BIO_read(sbio, sbuf, BUFSIZZ); 2314 if (seen < 0) { 2315 BIO_printf(bio_err, "BIO_read failed\n"); 2316 goto shut; 2317 } 2318 sbuf[seen] = '\0'; 2319 if (!strstr(sbuf, "<proceed")) 2320 goto shut; 2321 mbuf[0] = '\0'; 2322 } 2323 break; 2324 case PROTO_TELNET: 2325 { 2326 static const unsigned char tls_do[] = { 2327 /* IAC DO START_TLS */ 2328 255, 253, 46 2329 }; 2330 static const unsigned char tls_will[] = { 2331 /* IAC WILL START_TLS */ 2332 255, 251, 46 2333 }; 2334 static const unsigned char tls_follows[] = { 2335 /* IAC SB START_TLS FOLLOWS IAC SE */ 2336 255, 250, 46, 1, 255, 240 2337 }; 2338 int bytes; 2339 2340 /* Telnet server should demand we issue START_TLS */ 2341 bytes = BIO_read(sbio, mbuf, BUFSIZZ); 2342 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0) 2343 goto shut; 2344 /* Agree to issue START_TLS and send the FOLLOWS sub-command */ 2345 BIO_write(sbio, tls_will, 3); 2346 BIO_write(sbio, tls_follows, 6); 2347 (void)BIO_flush(sbio); 2348 /* Telnet server also sent the FOLLOWS sub-command */ 2349 bytes = BIO_read(sbio, mbuf, BUFSIZZ); 2350 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0) 2351 goto shut; 2352 } 2353 break; 2354 case PROTO_CONNECT: 2355 { 2356 enum { 2357 error_proto, /* Wrong protocol, not even HTTP */ 2358 error_connect, /* CONNECT failed */ 2359 success 2360 } foundit = error_connect; 2361 BIO *fbio = BIO_new(BIO_f_buffer()); 2362 2363 BIO_push(fbio, sbio); 2364 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr); 2365 (void)BIO_flush(fbio); 2366 /* 2367 * The first line is the HTTP response. According to RFC 7230, 2368 * it's formatted exactly like this: 2369 * 2370 * HTTP/d.d ddd Reason text\r\n 2371 */ 2372 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2373 if (mbuf_len < (int)strlen("HTTP/1.0 200")) { 2374 BIO_printf(bio_err, 2375 "%s: HTTP CONNECT failed, insufficient response " 2376 "from proxy (got %d octets)\n", prog, mbuf_len); 2377 (void)BIO_flush(fbio); 2378 BIO_pop(fbio); 2379 BIO_free(fbio); 2380 goto shut; 2381 } 2382 if (mbuf[8] != ' ') { 2383 BIO_printf(bio_err, 2384 "%s: HTTP CONNECT failed, incorrect response " 2385 "from proxy\n", prog); 2386 foundit = error_proto; 2387 } else if (mbuf[9] != '2') { 2388 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog, 2389 &mbuf[9]); 2390 } else { 2391 foundit = success; 2392 } 2393 if (foundit != error_proto) { 2394 /* Read past all following headers */ 2395 do { 2396 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2397 } while (mbuf_len > 2); 2398 } 2399 (void)BIO_flush(fbio); 2400 BIO_pop(fbio); 2401 BIO_free(fbio); 2402 if (foundit != success) { 2403 goto shut; 2404 } 2405 } 2406 break; 2407 case PROTO_IRC: 2408 { 2409 int numeric; 2410 BIO *fbio = BIO_new(BIO_f_buffer()); 2411 2412 BIO_push(fbio, sbio); 2413 BIO_printf(fbio, "STARTTLS\r\n"); 2414 (void)BIO_flush(fbio); 2415 width = SSL_get_fd(con) + 1; 2416 2417 do { 2418 numeric = 0; 2419 2420 FD_ZERO(&readfds); 2421 openssl_fdset(SSL_get_fd(con), &readfds); 2422 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT; 2423 timeout.tv_usec = 0; 2424 /* 2425 * If the IRCd doesn't respond within 2426 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume 2427 * it doesn't support STARTTLS. Many IRCds 2428 * will not give _any_ sort of response to a 2429 * STARTTLS command when it's not supported. 2430 */ 2431 if (!BIO_get_buffer_num_lines(fbio) 2432 && !BIO_pending(fbio) 2433 && !BIO_pending(sbio) 2434 && select(width, (void *)&readfds, NULL, NULL, 2435 &timeout) < 1) { 2436 BIO_printf(bio_err, 2437 "Timeout waiting for response (%d seconds).\n", 2438 S_CLIENT_IRC_READ_TIMEOUT); 2439 break; 2440 } 2441 2442 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2443 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1) 2444 break; 2445 /* :example.net 451 STARTTLS :You have not registered */ 2446 /* :example.net 421 STARTTLS :Unknown command */ 2447 if ((numeric == 451 || numeric == 421) 2448 && strstr(mbuf, "STARTTLS") != NULL) { 2449 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf); 2450 break; 2451 } 2452 if (numeric == 691) { 2453 BIO_printf(bio_err, "STARTTLS negotiation failed: "); 2454 ERR_print_errors(bio_err); 2455 break; 2456 } 2457 } while (numeric != 670); 2458 2459 (void)BIO_flush(fbio); 2460 BIO_pop(fbio); 2461 BIO_free(fbio); 2462 if (numeric != 670) { 2463 BIO_printf(bio_err, "Server does not support STARTTLS.\n"); 2464 ret = 1; 2465 goto shut; 2466 } 2467 } 2468 break; 2469 case PROTO_MYSQL: 2470 { 2471 /* SSL request packet */ 2472 static const unsigned char ssl_req[] = { 2473 /* payload_length, sequence_id */ 2474 0x20, 0x00, 0x00, 0x01, 2475 /* payload */ 2476 /* capability flags, CLIENT_SSL always set */ 2477 0x85, 0xae, 0x7f, 0x00, 2478 /* max-packet size */ 2479 0x00, 0x00, 0x00, 0x01, 2480 /* character set */ 2481 0x21, 2482 /* string[23] reserved (all [0]) */ 2483 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 2484 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 2485 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 2486 }; 2487 int bytes = 0; 2488 int ssl_flg = 0x800; 2489 int pos; 2490 const unsigned char *packet = (const unsigned char *)sbuf; 2491 2492 /* Receiving Initial Handshake packet. */ 2493 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ); 2494 if (bytes < 0) { 2495 BIO_printf(bio_err, "BIO_read failed\n"); 2496 goto shut; 2497 /* Packet length[3], Packet number[1] + minimum payload[17] */ 2498 } else if (bytes < 21) { 2499 BIO_printf(bio_err, "MySQL packet too short.\n"); 2500 goto shut; 2501 } else if (bytes != (4 + packet[0] + 2502 (packet[1] << 8) + 2503 (packet[2] << 16))) { 2504 BIO_printf(bio_err, "MySQL packet length does not match.\n"); 2505 goto shut; 2506 /* protocol version[1] */ 2507 } else if (packet[4] != 0xA) { 2508 BIO_printf(bio_err, 2509 "Only MySQL protocol version 10 is supported.\n"); 2510 goto shut; 2511 } 2512 2513 pos = 5; 2514 /* server version[string+NULL] */ 2515 for (;;) { 2516 if (pos >= bytes) { 2517 BIO_printf(bio_err, "Cannot confirm server version. "); 2518 goto shut; 2519 } else if (packet[pos++] == '\0') { 2520 break; 2521 } 2522 } 2523 2524 /* make sure we have at least 15 bytes left in the packet */ 2525 if (pos + 15 > bytes) { 2526 BIO_printf(bio_err, 2527 "MySQL server handshake packet is broken.\n"); 2528 goto shut; 2529 } 2530 2531 pos += 12; /* skip over conn id[4] + SALT[8] */ 2532 if (packet[pos++] != '\0') { /* verify filler */ 2533 BIO_printf(bio_err, 2534 "MySQL packet is broken.\n"); 2535 goto shut; 2536 } 2537 2538 /* capability flags[2] */ 2539 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) { 2540 BIO_printf(bio_err, "MySQL server does not support SSL.\n"); 2541 goto shut; 2542 } 2543 2544 /* Sending SSL Handshake packet. */ 2545 BIO_write(sbio, ssl_req, sizeof(ssl_req)); 2546 (void)BIO_flush(sbio); 2547 } 2548 break; 2549 case PROTO_POSTGRES: 2550 { 2551 static const unsigned char ssl_request[] = { 2552 /* Length SSLRequest */ 2553 0, 0, 0, 8, 4, 210, 22, 47 2554 }; 2555 int bytes; 2556 2557 /* Send SSLRequest packet */ 2558 BIO_write(sbio, ssl_request, 8); 2559 (void)BIO_flush(sbio); 2560 2561 /* Reply will be a single S if SSL is enabled */ 2562 bytes = BIO_read(sbio, sbuf, BUFSIZZ); 2563 if (bytes != 1 || sbuf[0] != 'S') 2564 goto shut; 2565 } 2566 break; 2567 case PROTO_NNTP: 2568 { 2569 int foundit = 0; 2570 BIO *fbio = BIO_new(BIO_f_buffer()); 2571 2572 BIO_push(fbio, sbio); 2573 BIO_gets(fbio, mbuf, BUFSIZZ); 2574 /* STARTTLS command requires CAPABILITIES... */ 2575 BIO_printf(fbio, "CAPABILITIES\r\n"); 2576 (void)BIO_flush(fbio); 2577 /* wait for multi-line CAPABILITIES response */ 2578 do { 2579 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2580 if (strstr(mbuf, "STARTTLS")) 2581 foundit = 1; 2582 } while (mbuf_len > 1 && mbuf[0] != '.'); 2583 (void)BIO_flush(fbio); 2584 BIO_pop(fbio); 2585 BIO_free(fbio); 2586 if (!foundit) 2587 BIO_printf(bio_err, 2588 "Didn't find STARTTLS in server response," 2589 " trying anyway...\n"); 2590 BIO_printf(sbio, "STARTTLS\r\n"); 2591 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2592 if (mbuf_len < 0) { 2593 BIO_printf(bio_err, "BIO_read failed\n"); 2594 goto end; 2595 } 2596 mbuf[mbuf_len] = '\0'; 2597 if (strstr(mbuf, "382") == NULL) { 2598 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf); 2599 goto shut; 2600 } 2601 } 2602 break; 2603 case PROTO_SIEVE: 2604 { 2605 int foundit = 0; 2606 BIO *fbio = BIO_new(BIO_f_buffer()); 2607 2608 BIO_push(fbio, sbio); 2609 /* wait for multi-line response to end from Sieve */ 2610 do { 2611 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2612 /* 2613 * According to RFC 5804 § 1.7, capability 2614 * is case-insensitive, make it uppercase 2615 */ 2616 if (mbuf_len > 1 && mbuf[0] == '"') { 2617 make_uppercase(mbuf); 2618 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0) 2619 foundit = 1; 2620 } 2621 } while (mbuf_len > 1 && mbuf[0] == '"'); 2622 (void)BIO_flush(fbio); 2623 BIO_pop(fbio); 2624 BIO_free(fbio); 2625 if (!foundit) 2626 BIO_printf(bio_err, 2627 "Didn't find STARTTLS in server response," 2628 " trying anyway...\n"); 2629 BIO_printf(sbio, "STARTTLS\r\n"); 2630 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2631 if (mbuf_len < 0) { 2632 BIO_printf(bio_err, "BIO_read failed\n"); 2633 goto end; 2634 } 2635 mbuf[mbuf_len] = '\0'; 2636 if (mbuf_len < 2) { 2637 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf); 2638 goto shut; 2639 } 2640 /* 2641 * According to RFC 5804 § 2.2, response codes are case- 2642 * insensitive, make it uppercase but preserve the response. 2643 */ 2644 strncpy(sbuf, mbuf, 2); 2645 make_uppercase(sbuf); 2646 if (strncmp(sbuf, "OK", 2) != 0) { 2647 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf); 2648 goto shut; 2649 } 2650 } 2651 break; 2652 case PROTO_LDAP: 2653 { 2654 /* StartTLS Operation according to RFC 4511 */ 2655 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n" 2656 "[LDAPMessage]\n" 2657 "messageID=INTEGER:1\n" 2658 "extendedReq=EXPLICIT:23A,IMPLICIT:0C," 2659 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n"; 2660 long errline = -1; 2661 char *genstr = NULL; 2662 int result = -1; 2663 ASN1_TYPE *atyp = NULL; 2664 BIO *ldapbio = BIO_new(BIO_s_mem()); 2665 CONF *cnf = NCONF_new(NULL); 2666 2667 if (cnf == NULL) { 2668 BIO_free(ldapbio); 2669 goto end; 2670 } 2671 BIO_puts(ldapbio, ldap_tls_genconf); 2672 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) { 2673 BIO_free(ldapbio); 2674 NCONF_free(cnf); 2675 if (errline <= 0) { 2676 BIO_printf(bio_err, "NCONF_load_bio failed\n"); 2677 goto end; 2678 } else { 2679 BIO_printf(bio_err, "Error on line %ld\n", errline); 2680 goto end; 2681 } 2682 } 2683 BIO_free(ldapbio); 2684 genstr = NCONF_get_string(cnf, "default", "asn1"); 2685 if (genstr == NULL) { 2686 NCONF_free(cnf); 2687 BIO_printf(bio_err, "NCONF_get_string failed\n"); 2688 goto end; 2689 } 2690 atyp = ASN1_generate_nconf(genstr, cnf); 2691 if (atyp == NULL) { 2692 NCONF_free(cnf); 2693 BIO_printf(bio_err, "ASN1_generate_nconf failed\n"); 2694 goto end; 2695 } 2696 NCONF_free(cnf); 2697 2698 /* Send SSLRequest packet */ 2699 BIO_write(sbio, atyp->value.sequence->data, 2700 atyp->value.sequence->length); 2701 (void)BIO_flush(sbio); 2702 ASN1_TYPE_free(atyp); 2703 2704 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2705 if (mbuf_len < 0) { 2706 BIO_printf(bio_err, "BIO_read failed\n"); 2707 goto end; 2708 } 2709 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len); 2710 if (result < 0) { 2711 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n"); 2712 goto shut; 2713 } else if (result > 0) { 2714 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n", 2715 result); 2716 goto shut; 2717 } 2718 mbuf_len = 0; 2719 } 2720 break; 2721 } 2722 2723 if (early_data_file != NULL 2724 && ((SSL_get0_session(con) != NULL 2725 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0) 2726 || (psksess != NULL 2727 && SSL_SESSION_get_max_early_data(psksess) > 0))) { 2728 BIO *edfile = BIO_new_file(early_data_file, "r"); 2729 size_t readbytes, writtenbytes; 2730 int finish = 0; 2731 2732 if (edfile == NULL) { 2733 BIO_printf(bio_err, "Cannot open early data file\n"); 2734 goto shut; 2735 } 2736 2737 while (!finish) { 2738 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes)) 2739 finish = 1; 2740 2741 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) { 2742 switch (SSL_get_error(con, 0)) { 2743 case SSL_ERROR_WANT_WRITE: 2744 case SSL_ERROR_WANT_ASYNC: 2745 case SSL_ERROR_WANT_READ: 2746 /* Just keep trying - busy waiting */ 2747 continue; 2748 default: 2749 BIO_printf(bio_err, "Error writing early data\n"); 2750 BIO_free(edfile); 2751 ERR_print_errors(bio_err); 2752 goto shut; 2753 } 2754 } 2755 } 2756 2757 BIO_free(edfile); 2758 } 2759 2760 for (;;) { 2761 FD_ZERO(&readfds); 2762 FD_ZERO(&writefds); 2763 2764 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout)) 2765 timeoutp = &timeout; 2766 else 2767 timeoutp = NULL; 2768 2769 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0 2770 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) { 2771 in_init = 1; 2772 tty_on = 0; 2773 } else { 2774 tty_on = 1; 2775 if (in_init) { 2776 in_init = 0; 2777 2778 if (c_brief) { 2779 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n"); 2780 print_ssl_summary(con); 2781 } 2782 2783 print_stuff(bio_c_out, con, full_log); 2784 if (full_log > 0) 2785 full_log--; 2786 2787 if (starttls_proto) { 2788 BIO_write(bio_err, mbuf, mbuf_len); 2789 /* We don't need to know any more */ 2790 if (!reconnect) 2791 starttls_proto = PROTO_OFF; 2792 } 2793 2794 if (reconnect) { 2795 reconnect--; 2796 BIO_printf(bio_c_out, 2797 "drop connection and then reconnect\n"); 2798 do_ssl_shutdown(con); 2799 SSL_set_connect_state(con); 2800 BIO_closesocket(SSL_get_fd(con)); 2801 goto re_start; 2802 } 2803 } 2804 } 2805 2806 ssl_pending = read_ssl && SSL_has_pending(con); 2807 2808 if (!ssl_pending) { 2809 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 2810 if (tty_on) { 2811 /* 2812 * Note that select() returns when read _would not block_, 2813 * and EOF satisfies that. To avoid a CPU-hogging loop, 2814 * set the flag so we exit. 2815 */ 2816 if (read_tty && !at_eof) 2817 openssl_fdset(fileno_stdin(), &readfds); 2818 #if !defined(OPENSSL_SYS_VMS) 2819 if (write_tty) 2820 openssl_fdset(fileno_stdout(), &writefds); 2821 #endif 2822 } 2823 if (read_ssl) 2824 openssl_fdset(SSL_get_fd(con), &readfds); 2825 if (write_ssl) 2826 openssl_fdset(SSL_get_fd(con), &writefds); 2827 #else 2828 if (!tty_on || !write_tty) { 2829 if (read_ssl) 2830 openssl_fdset(SSL_get_fd(con), &readfds); 2831 if (write_ssl) 2832 openssl_fdset(SSL_get_fd(con), &writefds); 2833 } 2834 #endif 2835 2836 /* 2837 * Note: under VMS with SOCKETSHR the second parameter is 2838 * currently of type (int *) whereas under other systems it is 2839 * (void *) if you don't have a cast it will choke the compiler: 2840 * if you do have a cast then you can either go for (int *) or 2841 * (void *). 2842 */ 2843 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2844 /* 2845 * Under Windows/DOS we make the assumption that we can always 2846 * write to the tty: therefore if we need to write to the tty we 2847 * just fall through. Otherwise we timeout the select every 2848 * second and see if there are any keypresses. Note: this is a 2849 * hack, in a proper Windows application we wouldn't do this. 2850 */ 2851 i = 0; 2852 if (!write_tty) { 2853 if (read_tty) { 2854 tv.tv_sec = 1; 2855 tv.tv_usec = 0; 2856 i = select(width, (void *)&readfds, (void *)&writefds, 2857 NULL, &tv); 2858 if (!i && (!has_stdin_waiting() || !read_tty)) 2859 continue; 2860 } else 2861 i = select(width, (void *)&readfds, (void *)&writefds, 2862 NULL, timeoutp); 2863 } 2864 #else 2865 i = select(width, (void *)&readfds, (void *)&writefds, 2866 NULL, timeoutp); 2867 #endif 2868 if (i < 0) { 2869 BIO_printf(bio_err, "bad select %d\n", 2870 get_last_socket_error()); 2871 goto shut; 2872 } 2873 } 2874 2875 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0) 2876 BIO_printf(bio_err, "TIMEOUT occurred\n"); 2877 2878 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { 2879 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); 2880 switch (SSL_get_error(con, k)) { 2881 case SSL_ERROR_NONE: 2882 cbuf_off += k; 2883 cbuf_len -= k; 2884 if (k <= 0) 2885 goto end; 2886 /* we have done a write(con,NULL,0); */ 2887 if (cbuf_len <= 0) { 2888 read_tty = 1; 2889 write_ssl = 0; 2890 } else { /* if (cbuf_len > 0) */ 2891 2892 read_tty = 0; 2893 write_ssl = 1; 2894 } 2895 break; 2896 case SSL_ERROR_WANT_WRITE: 2897 BIO_printf(bio_c_out, "write W BLOCK\n"); 2898 write_ssl = 1; 2899 read_tty = 0; 2900 break; 2901 case SSL_ERROR_WANT_ASYNC: 2902 BIO_printf(bio_c_out, "write A BLOCK\n"); 2903 wait_for_async(con); 2904 write_ssl = 1; 2905 read_tty = 0; 2906 break; 2907 case SSL_ERROR_WANT_READ: 2908 BIO_printf(bio_c_out, "write R BLOCK\n"); 2909 write_tty = 0; 2910 read_ssl = 1; 2911 write_ssl = 0; 2912 break; 2913 case SSL_ERROR_WANT_X509_LOOKUP: 2914 BIO_printf(bio_c_out, "write X BLOCK\n"); 2915 break; 2916 case SSL_ERROR_ZERO_RETURN: 2917 if (cbuf_len != 0) { 2918 BIO_printf(bio_c_out, "shutdown\n"); 2919 ret = 0; 2920 goto shut; 2921 } else { 2922 read_tty = 1; 2923 write_ssl = 0; 2924 break; 2925 } 2926 2927 case SSL_ERROR_SYSCALL: 2928 if ((k != 0) || (cbuf_len != 0)) { 2929 BIO_printf(bio_err, "write:errno=%d\n", 2930 get_last_socket_error()); 2931 goto shut; 2932 } else { 2933 read_tty = 1; 2934 write_ssl = 0; 2935 } 2936 break; 2937 case SSL_ERROR_WANT_ASYNC_JOB: 2938 /* This shouldn't ever happen in s_client - treat as an error */ 2939 case SSL_ERROR_SSL: 2940 ERR_print_errors(bio_err); 2941 goto shut; 2942 } 2943 } 2944 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS) 2945 /* Assume Windows/DOS/BeOS can always write */ 2946 else if (!ssl_pending && write_tty) 2947 #else 2948 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds)) 2949 #endif 2950 { 2951 #ifdef CHARSET_EBCDIC 2952 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); 2953 #endif 2954 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); 2955 2956 if (i <= 0) { 2957 BIO_printf(bio_c_out, "DONE\n"); 2958 ret = 0; 2959 goto shut; 2960 } 2961 2962 sbuf_len -= i; 2963 sbuf_off += i; 2964 if (sbuf_len <= 0) { 2965 read_ssl = 1; 2966 write_tty = 0; 2967 } 2968 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { 2969 #ifdef RENEG 2970 { 2971 static int iiii; 2972 if (++iiii == 52) { 2973 SSL_renegotiate(con); 2974 iiii = 0; 2975 } 2976 } 2977 #endif 2978 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 2979 2980 switch (SSL_get_error(con, k)) { 2981 case SSL_ERROR_NONE: 2982 if (k <= 0) 2983 goto end; 2984 sbuf_off = 0; 2985 sbuf_len = k; 2986 2987 read_ssl = 0; 2988 write_tty = 1; 2989 break; 2990 case SSL_ERROR_WANT_ASYNC: 2991 BIO_printf(bio_c_out, "read A BLOCK\n"); 2992 wait_for_async(con); 2993 write_tty = 0; 2994 read_ssl = 1; 2995 if ((read_tty == 0) && (write_ssl == 0)) 2996 write_ssl = 1; 2997 break; 2998 case SSL_ERROR_WANT_WRITE: 2999 BIO_printf(bio_c_out, "read W BLOCK\n"); 3000 write_ssl = 1; 3001 read_tty = 0; 3002 break; 3003 case SSL_ERROR_WANT_READ: 3004 BIO_printf(bio_c_out, "read R BLOCK\n"); 3005 write_tty = 0; 3006 read_ssl = 1; 3007 if ((read_tty == 0) && (write_ssl == 0)) 3008 write_ssl = 1; 3009 break; 3010 case SSL_ERROR_WANT_X509_LOOKUP: 3011 BIO_printf(bio_c_out, "read X BLOCK\n"); 3012 break; 3013 case SSL_ERROR_SYSCALL: 3014 ret = get_last_socket_error(); 3015 if (c_brief) 3016 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n"); 3017 else 3018 BIO_printf(bio_err, "read:errno=%d\n", ret); 3019 goto shut; 3020 case SSL_ERROR_ZERO_RETURN: 3021 BIO_printf(bio_c_out, "closed\n"); 3022 ret = 0; 3023 goto shut; 3024 case SSL_ERROR_WANT_ASYNC_JOB: 3025 /* This shouldn't ever happen in s_client. Treat as an error */ 3026 case SSL_ERROR_SSL: 3027 ERR_print_errors(bio_err); 3028 goto shut; 3029 } 3030 } 3031 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */ 3032 #if defined(OPENSSL_SYS_MSDOS) 3033 else if (has_stdin_waiting()) 3034 #else 3035 else if (FD_ISSET(fileno_stdin(), &readfds)) 3036 #endif 3037 { 3038 if (crlf) { 3039 int j, lf_num; 3040 3041 i = raw_read_stdin(cbuf, BUFSIZZ / 2); 3042 lf_num = 0; 3043 /* both loops are skipped when i <= 0 */ 3044 for (j = 0; j < i; j++) 3045 if (cbuf[j] == '\n') 3046 lf_num++; 3047 for (j = i - 1; j >= 0; j--) { 3048 cbuf[j + lf_num] = cbuf[j]; 3049 if (cbuf[j] == '\n') { 3050 lf_num--; 3051 i++; 3052 cbuf[j + lf_num] = '\r'; 3053 } 3054 } 3055 assert(lf_num == 0); 3056 } else 3057 i = raw_read_stdin(cbuf, BUFSIZZ); 3058 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 3059 if (i == 0) 3060 at_eof = 1; 3061 #endif 3062 3063 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) { 3064 BIO_printf(bio_err, "DONE\n"); 3065 ret = 0; 3066 goto shut; 3067 } 3068 3069 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) { 3070 BIO_printf(bio_err, "RENEGOTIATING\n"); 3071 SSL_renegotiate(con); 3072 cbuf_len = 0; 3073 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' ) 3074 && cmdletters) { 3075 BIO_printf(bio_err, "KEYUPDATE\n"); 3076 SSL_key_update(con, 3077 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED 3078 : SSL_KEY_UPDATE_NOT_REQUESTED); 3079 cbuf_len = 0; 3080 } 3081 #ifndef OPENSSL_NO_HEARTBEATS 3082 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) { 3083 BIO_printf(bio_err, "HEARTBEATING\n"); 3084 SSL_heartbeat(con); 3085 cbuf_len = 0; 3086 } 3087 #endif 3088 else { 3089 cbuf_len = i; 3090 cbuf_off = 0; 3091 #ifdef CHARSET_EBCDIC 3092 ebcdic2ascii(cbuf, cbuf, i); 3093 #endif 3094 } 3095 3096 write_ssl = 1; 3097 read_tty = 0; 3098 } 3099 } 3100 3101 ret = 0; 3102 shut: 3103 if (in_init) 3104 print_stuff(bio_c_out, con, full_log); 3105 do_ssl_shutdown(con); 3106 3107 /* 3108 * If we ended with an alert being sent, but still with data in the 3109 * network buffer to be read, then calling BIO_closesocket() will 3110 * result in a TCP-RST being sent. On some platforms (notably 3111 * Windows) then this will result in the peer immediately abandoning 3112 * the connection including any buffered alert data before it has 3113 * had a chance to be read. Shutting down the sending side first, 3114 * and then closing the socket sends TCP-FIN first followed by 3115 * TCP-RST. This seems to allow the peer to read the alert data. 3116 */ 3117 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */ 3118 /* 3119 * We just said we have nothing else to say, but it doesn't mean that 3120 * the other side has nothing. It's even recommended to consume incoming 3121 * data. [In testing context this ensures that alerts are passed on...] 3122 */ 3123 timeout.tv_sec = 0; 3124 timeout.tv_usec = 500000; /* some extreme round-trip */ 3125 do { 3126 FD_ZERO(&readfds); 3127 openssl_fdset(s, &readfds); 3128 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0 3129 && BIO_read(sbio, sbuf, BUFSIZZ) > 0); 3130 3131 BIO_closesocket(SSL_get_fd(con)); 3132 end: 3133 if (con != NULL) { 3134 if (prexit != 0) 3135 print_stuff(bio_c_out, con, 1); 3136 SSL_free(con); 3137 } 3138 SSL_SESSION_free(psksess); 3139 #if !defined(OPENSSL_NO_NEXTPROTONEG) 3140 OPENSSL_free(next_proto.data); 3141 #endif 3142 SSL_CTX_free(ctx); 3143 set_keylog_file(NULL, NULL); 3144 X509_free(cert); 3145 sk_X509_CRL_pop_free(crls, X509_CRL_free); 3146 EVP_PKEY_free(key); 3147 sk_X509_pop_free(chain, X509_free); 3148 OPENSSL_free(pass); 3149 #ifndef OPENSSL_NO_SRP 3150 OPENSSL_free(srp_arg.srppassin); 3151 #endif 3152 OPENSSL_free(connectstr); 3153 OPENSSL_free(bindstr); 3154 OPENSSL_free(host); 3155 OPENSSL_free(port); 3156 X509_VERIFY_PARAM_free(vpm); 3157 ssl_excert_free(exc); 3158 sk_OPENSSL_STRING_free(ssl_args); 3159 sk_OPENSSL_STRING_free(dane_tlsa_rrset); 3160 SSL_CONF_CTX_free(cctx); 3161 OPENSSL_clear_free(cbuf, BUFSIZZ); 3162 OPENSSL_clear_free(sbuf, BUFSIZZ); 3163 OPENSSL_clear_free(mbuf, BUFSIZZ); 3164 release_engine(e); 3165 BIO_free(bio_c_out); 3166 bio_c_out = NULL; 3167 BIO_free(bio_c_msg); 3168 bio_c_msg = NULL; 3169 return ret; 3170 } 3171 3172 static void print_stuff(BIO *bio, SSL *s, int full) 3173 { 3174 X509 *peer = NULL; 3175 STACK_OF(X509) *sk; 3176 const SSL_CIPHER *c; 3177 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION); 3178 long verify_result; 3179 #ifndef OPENSSL_NO_COMP 3180 const COMP_METHOD *comp, *expansion; 3181 #endif 3182 unsigned char *exportedkeymat; 3183 #ifndef OPENSSL_NO_CT 3184 const SSL_CTX *ctx = SSL_get_SSL_CTX(s); 3185 #endif 3186 3187 if (full) { 3188 int got_a_chain = 0; 3189 3190 sk = SSL_get_peer_cert_chain(s); 3191 if (sk != NULL) { 3192 got_a_chain = 1; 3193 3194 BIO_printf(bio, "---\nCertificate chain\n"); 3195 for (i = 0; i < sk_X509_num(sk); i++) { 3196 BIO_printf(bio, "%2d s:", i); 3197 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt()); 3198 BIO_puts(bio, "\n"); 3199 BIO_printf(bio, " i:"); 3200 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt()); 3201 BIO_puts(bio, "\n"); 3202 if (c_showcerts) 3203 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 3204 } 3205 } 3206 3207 BIO_printf(bio, "---\n"); 3208 peer = SSL_get_peer_certificate(s); 3209 if (peer != NULL) { 3210 BIO_printf(bio, "Server certificate\n"); 3211 3212 /* Redundant if we showed the whole chain */ 3213 if (!(c_showcerts && got_a_chain)) 3214 PEM_write_bio_X509(bio, peer); 3215 dump_cert_text(bio, peer); 3216 } else { 3217 BIO_printf(bio, "no peer certificate available\n"); 3218 } 3219 print_ca_names(bio, s); 3220 3221 ssl_print_sigalgs(bio, s); 3222 ssl_print_tmp_key(bio, s); 3223 3224 #ifndef OPENSSL_NO_CT 3225 /* 3226 * When the SSL session is anonymous, or resumed via an abbreviated 3227 * handshake, no SCTs are provided as part of the handshake. While in 3228 * a resumed session SCTs may be present in the session's certificate, 3229 * no callbacks are invoked to revalidate these, and in any case that 3230 * set of SCTs may be incomplete. Thus it makes little sense to 3231 * attempt to display SCTs from a resumed session's certificate, and of 3232 * course none are associated with an anonymous peer. 3233 */ 3234 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) { 3235 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s); 3236 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0; 3237 3238 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count); 3239 if (sct_count > 0) { 3240 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx); 3241 3242 BIO_printf(bio, "---\n"); 3243 for (i = 0; i < sct_count; ++i) { 3244 SCT *sct = sk_SCT_value(scts, i); 3245 3246 BIO_printf(bio, "SCT validation status: %s\n", 3247 SCT_validation_status_string(sct)); 3248 SCT_print(sct, bio, 0, log_store); 3249 if (i < sct_count - 1) 3250 BIO_printf(bio, "\n---\n"); 3251 } 3252 BIO_printf(bio, "\n"); 3253 } 3254 } 3255 #endif 3256 3257 BIO_printf(bio, 3258 "---\nSSL handshake has read %ju bytes " 3259 "and written %ju bytes\n", 3260 BIO_number_read(SSL_get_rbio(s)), 3261 BIO_number_written(SSL_get_wbio(s))); 3262 } 3263 print_verify_detail(s, bio); 3264 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, ")); 3265 c = SSL_get_current_cipher(s); 3266 BIO_printf(bio, "%s, Cipher is %s\n", 3267 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3268 if (peer != NULL) { 3269 EVP_PKEY *pktmp; 3270 3271 pktmp = X509_get0_pubkey(peer); 3272 BIO_printf(bio, "Server public key is %d bit\n", 3273 EVP_PKEY_bits(pktmp)); 3274 } 3275 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 3276 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 3277 #ifndef OPENSSL_NO_COMP 3278 comp = SSL_get_current_compression(s); 3279 expansion = SSL_get_current_expansion(s); 3280 BIO_printf(bio, "Compression: %s\n", 3281 comp ? SSL_COMP_get_name(comp) : "NONE"); 3282 BIO_printf(bio, "Expansion: %s\n", 3283 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 3284 #endif 3285 3286 #ifdef SSL_DEBUG 3287 { 3288 /* Print out local port of connection: useful for debugging */ 3289 int sock; 3290 union BIO_sock_info_u info; 3291 3292 sock = SSL_get_fd(s); 3293 if ((info.addr = BIO_ADDR_new()) != NULL 3294 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) { 3295 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", 3296 ntohs(BIO_ADDR_rawport(info.addr))); 3297 } 3298 BIO_ADDR_free(info.addr); 3299 } 3300 #endif 3301 3302 #if !defined(OPENSSL_NO_NEXTPROTONEG) 3303 if (next_proto.status != -1) { 3304 const unsigned char *proto; 3305 unsigned int proto_len; 3306 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 3307 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 3308 BIO_write(bio, proto, proto_len); 3309 BIO_write(bio, "\n", 1); 3310 } 3311 #endif 3312 { 3313 const unsigned char *proto; 3314 unsigned int proto_len; 3315 SSL_get0_alpn_selected(s, &proto, &proto_len); 3316 if (proto_len > 0) { 3317 BIO_printf(bio, "ALPN protocol: "); 3318 BIO_write(bio, proto, proto_len); 3319 BIO_write(bio, "\n", 1); 3320 } else 3321 BIO_printf(bio, "No ALPN negotiated\n"); 3322 } 3323 3324 #ifndef OPENSSL_NO_SRTP 3325 { 3326 SRTP_PROTECTION_PROFILE *srtp_profile = 3327 SSL_get_selected_srtp_profile(s); 3328 3329 if (srtp_profile) 3330 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 3331 srtp_profile->name); 3332 } 3333 #endif 3334 3335 if (istls13) { 3336 switch (SSL_get_early_data_status(s)) { 3337 case SSL_EARLY_DATA_NOT_SENT: 3338 BIO_printf(bio, "Early data was not sent\n"); 3339 break; 3340 3341 case SSL_EARLY_DATA_REJECTED: 3342 BIO_printf(bio, "Early data was rejected\n"); 3343 break; 3344 3345 case SSL_EARLY_DATA_ACCEPTED: 3346 BIO_printf(bio, "Early data was accepted\n"); 3347 break; 3348 3349 } 3350 3351 /* 3352 * We also print the verify results when we dump session information, 3353 * but in TLSv1.3 we may not get that right away (or at all) depending 3354 * on when we get a NewSessionTicket. Therefore we print it now as well. 3355 */ 3356 verify_result = SSL_get_verify_result(s); 3357 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result, 3358 X509_verify_cert_error_string(verify_result)); 3359 } else { 3360 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */ 3361 SSL_SESSION_print(bio, SSL_get_session(s)); 3362 } 3363 3364 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) { 3365 BIO_printf(bio, "Keying material exporter:\n"); 3366 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 3367 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 3368 exportedkeymat = app_malloc(keymatexportlen, "export key"); 3369 if (!SSL_export_keying_material(s, exportedkeymat, 3370 keymatexportlen, 3371 keymatexportlabel, 3372 strlen(keymatexportlabel), 3373 NULL, 0, 0)) { 3374 BIO_printf(bio, " Error\n"); 3375 } else { 3376 BIO_printf(bio, " Keying material: "); 3377 for (i = 0; i < keymatexportlen; i++) 3378 BIO_printf(bio, "%02X", exportedkeymat[i]); 3379 BIO_printf(bio, "\n"); 3380 } 3381 OPENSSL_free(exportedkeymat); 3382 } 3383 BIO_printf(bio, "---\n"); 3384 X509_free(peer); 3385 /* flush, or debugging output gets mixed with http response */ 3386 (void)BIO_flush(bio); 3387 } 3388 3389 # ifndef OPENSSL_NO_OCSP 3390 static int ocsp_resp_cb(SSL *s, void *arg) 3391 { 3392 const unsigned char *p; 3393 int len; 3394 OCSP_RESPONSE *rsp; 3395 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 3396 BIO_puts(arg, "OCSP response: "); 3397 if (p == NULL) { 3398 BIO_puts(arg, "no response sent\n"); 3399 return 1; 3400 } 3401 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 3402 if (rsp == NULL) { 3403 BIO_puts(arg, "response parse error\n"); 3404 BIO_dump_indent(arg, (char *)p, len, 4); 3405 return 0; 3406 } 3407 BIO_puts(arg, "\n======================================\n"); 3408 OCSP_RESPONSE_print(arg, rsp, 0); 3409 BIO_puts(arg, "======================================\n"); 3410 OCSP_RESPONSE_free(rsp); 3411 return 1; 3412 } 3413 # endif 3414 3415 static int ldap_ExtendedResponse_parse(const char *buf, long rem) 3416 { 3417 const unsigned char *cur, *end; 3418 long len; 3419 int tag, xclass, inf, ret = -1; 3420 3421 cur = (const unsigned char *)buf; 3422 end = cur + rem; 3423 3424 /* 3425 * From RFC 4511: 3426 * 3427 * LDAPMessage ::= SEQUENCE { 3428 * messageID MessageID, 3429 * protocolOp CHOICE { 3430 * ... 3431 * extendedResp ExtendedResponse, 3432 * ... }, 3433 * controls [0] Controls OPTIONAL } 3434 * 3435 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE { 3436 * COMPONENTS OF LDAPResult, 3437 * responseName [10] LDAPOID OPTIONAL, 3438 * responseValue [11] OCTET STRING OPTIONAL } 3439 * 3440 * LDAPResult ::= SEQUENCE { 3441 * resultCode ENUMERATED { 3442 * success (0), 3443 * ... 3444 * other (80), 3445 * ... }, 3446 * matchedDN LDAPDN, 3447 * diagnosticMessage LDAPString, 3448 * referral [3] Referral OPTIONAL } 3449 */ 3450 3451 /* pull SEQUENCE */ 3452 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3453 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE || 3454 (rem = end - cur, len > rem)) { 3455 BIO_printf(bio_err, "Unexpected LDAP response\n"); 3456 goto end; 3457 } 3458 3459 rem = len; /* ensure that we don't overstep the SEQUENCE */ 3460 3461 /* pull MessageID */ 3462 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3463 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER || 3464 (rem = end - cur, len > rem)) { 3465 BIO_printf(bio_err, "No MessageID\n"); 3466 goto end; 3467 } 3468 3469 cur += len; /* shall we check for MessageId match or just skip? */ 3470 3471 /* pull [APPLICATION 24] */ 3472 rem = end - cur; 3473 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3474 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION || 3475 tag != 24) { 3476 BIO_printf(bio_err, "Not ExtendedResponse\n"); 3477 goto end; 3478 } 3479 3480 /* pull resultCode */ 3481 rem = end - cur; 3482 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3483 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 || 3484 (rem = end - cur, len > rem)) { 3485 BIO_printf(bio_err, "Not LDAPResult\n"); 3486 goto end; 3487 } 3488 3489 /* len should always be one, but just in case... */ 3490 for (ret = 0, inf = 0; inf < len; inf++) { 3491 ret <<= 8; 3492 ret |= cur[inf]; 3493 } 3494 /* There is more data, but we don't care... */ 3495 end: 3496 return ret; 3497 } 3498 3499 /* 3500 * Host dNS Name verifier: used for checking that the hostname is in dNS format 3501 * before setting it as SNI 3502 */ 3503 static int is_dNS_name(const char *host) 3504 { 3505 const size_t MAX_LABEL_LENGTH = 63; 3506 size_t i; 3507 int isdnsname = 0; 3508 size_t length = strlen(host); 3509 size_t label_length = 0; 3510 int all_numeric = 1; 3511 3512 /* 3513 * Deviation from strict DNS name syntax, also check names with '_' 3514 * Check DNS name syntax, any '-' or '.' must be internal, 3515 * and on either side of each '.' we can't have a '-' or '.'. 3516 * 3517 * If the name has just one label, we don't consider it a DNS name. 3518 */ 3519 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) { 3520 char c = host[i]; 3521 3522 if ((c >= 'a' && c <= 'z') 3523 || (c >= 'A' && c <= 'Z') 3524 || c == '_') { 3525 label_length += 1; 3526 all_numeric = 0; 3527 continue; 3528 } 3529 3530 if (c >= '0' && c <= '9') { 3531 label_length += 1; 3532 continue; 3533 } 3534 3535 /* Dot and hyphen cannot be first or last. */ 3536 if (i > 0 && i < length - 1) { 3537 if (c == '-') { 3538 label_length += 1; 3539 continue; 3540 } 3541 /* 3542 * Next to a dot the preceding and following characters must not be 3543 * another dot or a hyphen. Otherwise, record that the name is 3544 * plausible, since it has two or more labels. 3545 */ 3546 if (c == '.' 3547 && host[i + 1] != '.' 3548 && host[i - 1] != '-' 3549 && host[i + 1] != '-') { 3550 label_length = 0; 3551 isdnsname = 1; 3552 continue; 3553 } 3554 } 3555 isdnsname = 0; 3556 break; 3557 } 3558 3559 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */ 3560 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH); 3561 3562 return isdnsname; 3563 } 3564 #endif /* OPENSSL_NO_SOCK */ 3565