s_client.c revision 1.15.2.1
1 /* 2 * Copyright 1995-2019 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 break; 1287 case OPT_TLS1_3: 1288 min_version = TLS1_3_VERSION; 1289 max_version = TLS1_3_VERSION; 1290 break; 1291 case OPT_TLS1_2: 1292 min_version = TLS1_2_VERSION; 1293 max_version = TLS1_2_VERSION; 1294 break; 1295 case OPT_TLS1_1: 1296 min_version = TLS1_1_VERSION; 1297 max_version = TLS1_1_VERSION; 1298 break; 1299 case OPT_TLS1: 1300 min_version = TLS1_VERSION; 1301 max_version = TLS1_VERSION; 1302 break; 1303 case OPT_DTLS: 1304 #ifndef OPENSSL_NO_DTLS 1305 meth = DTLS_client_method(); 1306 socket_type = SOCK_DGRAM; 1307 isdtls = 1; 1308 #endif 1309 break; 1310 case OPT_DTLS1: 1311 #ifndef OPENSSL_NO_DTLS1 1312 meth = DTLS_client_method(); 1313 min_version = DTLS1_VERSION; 1314 max_version = DTLS1_VERSION; 1315 socket_type = SOCK_DGRAM; 1316 isdtls = 1; 1317 #endif 1318 break; 1319 case OPT_DTLS1_2: 1320 #ifndef OPENSSL_NO_DTLS1_2 1321 meth = DTLS_client_method(); 1322 min_version = DTLS1_2_VERSION; 1323 max_version = DTLS1_2_VERSION; 1324 socket_type = SOCK_DGRAM; 1325 isdtls = 1; 1326 #endif 1327 break; 1328 case OPT_SCTP: 1329 #ifndef OPENSSL_NO_SCTP 1330 protocol = IPPROTO_SCTP; 1331 #endif 1332 break; 1333 case OPT_SCTP_LABEL_BUG: 1334 #ifndef OPENSSL_NO_SCTP 1335 sctp_label_bug = 1; 1336 #endif 1337 break; 1338 case OPT_TIMEOUT: 1339 #ifndef OPENSSL_NO_DTLS 1340 enable_timeouts = 1; 1341 #endif 1342 break; 1343 case OPT_MTU: 1344 #ifndef OPENSSL_NO_DTLS 1345 socket_mtu = atol(opt_arg()); 1346 #endif 1347 break; 1348 case OPT_FALLBACKSCSV: 1349 fallback_scsv = 1; 1350 break; 1351 case OPT_KEYFORM: 1352 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format)) 1353 goto opthelp; 1354 break; 1355 case OPT_PASS: 1356 passarg = opt_arg(); 1357 break; 1358 case OPT_CERT_CHAIN: 1359 chain_file = opt_arg(); 1360 break; 1361 case OPT_KEY: 1362 key_file = opt_arg(); 1363 break; 1364 case OPT_RECONNECT: 1365 reconnect = 5; 1366 break; 1367 case OPT_CAPATH: 1368 CApath = opt_arg(); 1369 break; 1370 case OPT_NOCAPATH: 1371 noCApath = 1; 1372 break; 1373 case OPT_CHAINCAPATH: 1374 chCApath = opt_arg(); 1375 break; 1376 case OPT_VERIFYCAPATH: 1377 vfyCApath = opt_arg(); 1378 break; 1379 case OPT_BUILD_CHAIN: 1380 build_chain = 1; 1381 break; 1382 case OPT_REQCAFILE: 1383 ReqCAfile = opt_arg(); 1384 break; 1385 case OPT_CAFILE: 1386 CAfile = opt_arg(); 1387 break; 1388 case OPT_NOCAFILE: 1389 noCAfile = 1; 1390 break; 1391 #ifndef OPENSSL_NO_CT 1392 case OPT_NOCT: 1393 ct_validation = 0; 1394 break; 1395 case OPT_CT: 1396 ct_validation = 1; 1397 break; 1398 case OPT_CTLOG_FILE: 1399 ctlog_file = opt_arg(); 1400 break; 1401 #endif 1402 case OPT_CHAINCAFILE: 1403 chCAfile = opt_arg(); 1404 break; 1405 case OPT_VERIFYCAFILE: 1406 vfyCAfile = opt_arg(); 1407 break; 1408 case OPT_DANE_TLSA_DOMAIN: 1409 dane_tlsa_domain = opt_arg(); 1410 break; 1411 case OPT_DANE_TLSA_RRDATA: 1412 if (dane_tlsa_rrset == NULL) 1413 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null(); 1414 if (dane_tlsa_rrset == NULL || 1415 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) { 1416 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1417 goto end; 1418 } 1419 break; 1420 case OPT_DANE_EE_NO_NAME: 1421 dane_ee_no_name = 1; 1422 break; 1423 case OPT_NEXTPROTONEG: 1424 #ifndef OPENSSL_NO_NEXTPROTONEG 1425 next_proto_neg_in = opt_arg(); 1426 #endif 1427 break; 1428 case OPT_ALPN: 1429 alpn_in = opt_arg(); 1430 break; 1431 case OPT_SERVERINFO: 1432 p = opt_arg(); 1433 len = strlen(p); 1434 for (start = 0, i = 0; i <= len; ++i) { 1435 if (i == len || p[i] == ',') { 1436 serverinfo_types[serverinfo_count] = atoi(p + start); 1437 if (++serverinfo_count == MAX_SI_TYPES) 1438 break; 1439 start = i + 1; 1440 } 1441 } 1442 break; 1443 case OPT_STARTTLS: 1444 if (!opt_pair(opt_arg(), services, &starttls_proto)) 1445 goto end; 1446 break; 1447 case OPT_SERVERNAME: 1448 servername = opt_arg(); 1449 break; 1450 case OPT_NOSERVERNAME: 1451 noservername = 1; 1452 break; 1453 case OPT_USE_SRTP: 1454 #ifndef OPENSSL_NO_SRTP 1455 srtp_profiles = opt_arg(); 1456 #endif 1457 break; 1458 case OPT_KEYMATEXPORT: 1459 keymatexportlabel = opt_arg(); 1460 break; 1461 case OPT_KEYMATEXPORTLEN: 1462 keymatexportlen = atoi(opt_arg()); 1463 break; 1464 case OPT_ASYNC: 1465 async = 1; 1466 break; 1467 case OPT_MAXFRAGLEN: 1468 len = atoi(opt_arg()); 1469 switch (len) { 1470 case 512: 1471 maxfraglen = TLSEXT_max_fragment_length_512; 1472 break; 1473 case 1024: 1474 maxfraglen = TLSEXT_max_fragment_length_1024; 1475 break; 1476 case 2048: 1477 maxfraglen = TLSEXT_max_fragment_length_2048; 1478 break; 1479 case 4096: 1480 maxfraglen = TLSEXT_max_fragment_length_4096; 1481 break; 1482 default: 1483 BIO_printf(bio_err, 1484 "%s: Max Fragment Len %u is out of permitted values", 1485 prog, len); 1486 goto opthelp; 1487 } 1488 break; 1489 case OPT_MAX_SEND_FRAG: 1490 max_send_fragment = atoi(opt_arg()); 1491 break; 1492 case OPT_SPLIT_SEND_FRAG: 1493 split_send_fragment = atoi(opt_arg()); 1494 break; 1495 case OPT_MAX_PIPELINES: 1496 max_pipelines = atoi(opt_arg()); 1497 break; 1498 case OPT_READ_BUF: 1499 read_buf_len = atoi(opt_arg()); 1500 break; 1501 case OPT_KEYLOG_FILE: 1502 keylog_file = opt_arg(); 1503 break; 1504 case OPT_EARLY_DATA: 1505 early_data_file = opt_arg(); 1506 break; 1507 case OPT_ENABLE_PHA: 1508 enable_pha = 1; 1509 break; 1510 } 1511 } 1512 if (count4or6 >= 2) { 1513 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog); 1514 goto opthelp; 1515 } 1516 if (noservername) { 1517 if (servername != NULL) { 1518 BIO_printf(bio_err, 1519 "%s: Can't use -servername and -noservername together\n", 1520 prog); 1521 goto opthelp; 1522 } 1523 if (dane_tlsa_domain != NULL) { 1524 BIO_printf(bio_err, 1525 "%s: Can't use -dane_tlsa_domain and -noservername together\n", 1526 prog); 1527 goto opthelp; 1528 } 1529 } 1530 argc = opt_num_rest(); 1531 if (argc == 1) { 1532 /* If there's a positional argument, it's the equivalent of 1533 * OPT_CONNECT. 1534 * Don't allow -connect and a separate argument. 1535 */ 1536 if (connectstr != NULL) { 1537 BIO_printf(bio_err, 1538 "%s: must not provide both -connect option and target parameter\n", 1539 prog); 1540 goto opthelp; 1541 } 1542 connect_type = use_inet; 1543 freeandcopy(&connectstr, *opt_rest()); 1544 } else if (argc != 0) { 1545 goto opthelp; 1546 } 1547 1548 #ifndef OPENSSL_NO_NEXTPROTONEG 1549 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) { 1550 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n"); 1551 goto opthelp; 1552 } 1553 #endif 1554 if (proxystr != NULL) { 1555 int res; 1556 char *tmp_host = host, *tmp_port = port; 1557 if (connectstr == NULL) { 1558 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog); 1559 goto opthelp; 1560 } 1561 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST); 1562 if (tmp_host != host) 1563 OPENSSL_free(tmp_host); 1564 if (tmp_port != port) 1565 OPENSSL_free(tmp_port); 1566 if (!res) { 1567 BIO_printf(bio_err, 1568 "%s: -proxy argument malformed or ambiguous\n", prog); 1569 goto end; 1570 } 1571 } else { 1572 int res = 1; 1573 char *tmp_host = host, *tmp_port = port; 1574 if (connectstr != NULL) 1575 res = BIO_parse_hostserv(connectstr, &host, &port, 1576 BIO_PARSE_PRIO_HOST); 1577 if (tmp_host != host) 1578 OPENSSL_free(tmp_host); 1579 if (tmp_port != port) 1580 OPENSSL_free(tmp_port); 1581 if (!res) { 1582 BIO_printf(bio_err, 1583 "%s: -connect argument or target parameter malformed or ambiguous\n", 1584 prog); 1585 goto end; 1586 } 1587 } 1588 1589 if (bindstr != NULL) { 1590 int res; 1591 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport, 1592 BIO_PARSE_PRIO_HOST); 1593 if (!res) { 1594 BIO_printf(bio_err, 1595 "%s: -bind argument parameter malformed or ambiguous\n", 1596 prog); 1597 goto end; 1598 } 1599 } 1600 1601 #ifdef AF_UNIX 1602 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) { 1603 BIO_printf(bio_err, 1604 "Can't use unix sockets and datagrams together\n"); 1605 goto end; 1606 } 1607 #endif 1608 1609 #ifndef OPENSSL_NO_SCTP 1610 if (protocol == IPPROTO_SCTP) { 1611 if (socket_type != SOCK_DGRAM) { 1612 BIO_printf(bio_err, "Can't use -sctp without DTLS\n"); 1613 goto end; 1614 } 1615 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */ 1616 socket_type = SOCK_STREAM; 1617 } 1618 #endif 1619 1620 #if !defined(OPENSSL_NO_NEXTPROTONEG) 1621 next_proto.status = -1; 1622 if (next_proto_neg_in) { 1623 next_proto.data = 1624 next_protos_parse(&next_proto.len, next_proto_neg_in); 1625 if (next_proto.data == NULL) { 1626 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1627 goto end; 1628 } 1629 } else 1630 next_proto.data = NULL; 1631 #endif 1632 1633 if (!app_passwd(passarg, NULL, &pass, NULL)) { 1634 BIO_printf(bio_err, "Error getting password\n"); 1635 goto end; 1636 } 1637 1638 if (key_file == NULL) 1639 key_file = cert_file; 1640 1641 if (key_file != NULL) { 1642 key = load_key(key_file, key_format, 0, pass, e, 1643 "client certificate private key file"); 1644 if (key == NULL) { 1645 ERR_print_errors(bio_err); 1646 goto end; 1647 } 1648 } 1649 1650 if (cert_file != NULL) { 1651 cert = load_cert(cert_file, cert_format, "client certificate file"); 1652 if (cert == NULL) { 1653 ERR_print_errors(bio_err); 1654 goto end; 1655 } 1656 } 1657 1658 if (chain_file != NULL) { 1659 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL, 1660 "client certificate chain")) 1661 goto end; 1662 } 1663 1664 if (crl_file != NULL) { 1665 X509_CRL *crl; 1666 crl = load_crl(crl_file, crl_format); 1667 if (crl == NULL) { 1668 BIO_puts(bio_err, "Error loading CRL\n"); 1669 ERR_print_errors(bio_err); 1670 goto end; 1671 } 1672 crls = sk_X509_CRL_new_null(); 1673 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { 1674 BIO_puts(bio_err, "Error adding CRL\n"); 1675 ERR_print_errors(bio_err); 1676 X509_CRL_free(crl); 1677 goto end; 1678 } 1679 } 1680 1681 if (!load_excert(&exc)) 1682 goto end; 1683 1684 if (bio_c_out == NULL) { 1685 if (c_quiet && !c_debug) { 1686 bio_c_out = BIO_new(BIO_s_null()); 1687 if (c_msg && bio_c_msg == NULL) 1688 bio_c_msg = dup_bio_out(FORMAT_TEXT); 1689 } else if (bio_c_out == NULL) 1690 bio_c_out = dup_bio_out(FORMAT_TEXT); 1691 } 1692 #ifndef OPENSSL_NO_SRP 1693 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) { 1694 BIO_printf(bio_err, "Error getting password\n"); 1695 goto end; 1696 } 1697 #endif 1698 1699 ctx = SSL_CTX_new(meth); 1700 if (ctx == NULL) { 1701 ERR_print_errors(bio_err); 1702 goto end; 1703 } 1704 1705 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 1706 1707 if (sdebug) 1708 ssl_ctx_security_debug(ctx, sdebug); 1709 1710 if (!config_ctx(cctx, ssl_args, ctx)) 1711 goto end; 1712 1713 if (ssl_config != NULL) { 1714 if (SSL_CTX_config(ctx, ssl_config) == 0) { 1715 BIO_printf(bio_err, "Error using configuration \"%s\"\n", 1716 ssl_config); 1717 ERR_print_errors(bio_err); 1718 goto end; 1719 } 1720 } 1721 1722 #ifndef OPENSSL_NO_SCTP 1723 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1) 1724 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG); 1725 #endif 1726 1727 if (min_version != 0 1728 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0) 1729 goto end; 1730 if (max_version != 0 1731 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0) 1732 goto end; 1733 1734 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { 1735 BIO_printf(bio_err, "Error setting verify params\n"); 1736 ERR_print_errors(bio_err); 1737 goto end; 1738 } 1739 1740 if (async) { 1741 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); 1742 } 1743 1744 if (max_send_fragment > 0 1745 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) { 1746 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n", 1747 prog, max_send_fragment); 1748 goto end; 1749 } 1750 1751 if (split_send_fragment > 0 1752 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) { 1753 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n", 1754 prog, split_send_fragment); 1755 goto end; 1756 } 1757 1758 if (max_pipelines > 0 1759 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) { 1760 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n", 1761 prog, max_pipelines); 1762 goto end; 1763 } 1764 1765 if (read_buf_len > 0) { 1766 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); 1767 } 1768 1769 if (maxfraglen > 0 1770 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) { 1771 BIO_printf(bio_err, 1772 "%s: Max Fragment Length code %u is out of permitted values" 1773 "\n", prog, maxfraglen); 1774 goto end; 1775 } 1776 1777 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, 1778 crls, crl_download)) { 1779 BIO_printf(bio_err, "Error loading store locations\n"); 1780 ERR_print_errors(bio_err); 1781 goto end; 1782 } 1783 if (ReqCAfile != NULL) { 1784 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null(); 1785 1786 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) { 1787 sk_X509_NAME_pop_free(nm, X509_NAME_free); 1788 BIO_printf(bio_err, "Error loading CA names\n"); 1789 ERR_print_errors(bio_err); 1790 goto end; 1791 } 1792 SSL_CTX_set0_CA_list(ctx, nm); 1793 } 1794 #ifndef OPENSSL_NO_ENGINE 1795 if (ssl_client_engine) { 1796 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { 1797 BIO_puts(bio_err, "Error setting client auth engine\n"); 1798 ERR_print_errors(bio_err); 1799 ENGINE_free(ssl_client_engine); 1800 goto end; 1801 } 1802 ENGINE_free(ssl_client_engine); 1803 } 1804 #endif 1805 1806 #ifndef OPENSSL_NO_PSK 1807 if (psk_key != NULL) { 1808 if (c_debug) 1809 BIO_printf(bio_c_out, "PSK key given, setting client callback\n"); 1810 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1811 } 1812 #endif 1813 if (psksessf != NULL) { 1814 BIO *stmp = BIO_new_file(psksessf, "r"); 1815 1816 if (stmp == NULL) { 1817 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf); 1818 ERR_print_errors(bio_err); 1819 goto end; 1820 } 1821 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1822 BIO_free(stmp); 1823 if (psksess == NULL) { 1824 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf); 1825 ERR_print_errors(bio_err); 1826 goto end; 1827 } 1828 } 1829 if (psk_key != NULL || psksess != NULL) 1830 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb); 1831 1832 #ifndef OPENSSL_NO_SRTP 1833 if (srtp_profiles != NULL) { 1834 /* Returns 0 on success! */ 1835 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { 1836 BIO_printf(bio_err, "Error setting SRTP profile\n"); 1837 ERR_print_errors(bio_err); 1838 goto end; 1839 } 1840 } 1841 #endif 1842 1843 if (exc != NULL) 1844 ssl_ctx_set_excert(ctx, exc); 1845 1846 #if !defined(OPENSSL_NO_NEXTPROTONEG) 1847 if (next_proto.data != NULL) 1848 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1849 #endif 1850 if (alpn_in) { 1851 size_t alpn_len; 1852 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); 1853 1854 if (alpn == NULL) { 1855 BIO_printf(bio_err, "Error parsing -alpn argument\n"); 1856 goto end; 1857 } 1858 /* Returns 0 on success! */ 1859 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) { 1860 BIO_printf(bio_err, "Error setting ALPN\n"); 1861 goto end; 1862 } 1863 OPENSSL_free(alpn); 1864 } 1865 1866 for (i = 0; i < serverinfo_count; i++) { 1867 if (!SSL_CTX_add_client_custom_ext(ctx, 1868 serverinfo_types[i], 1869 NULL, NULL, NULL, 1870 serverinfo_cli_parse_cb, NULL)) { 1871 BIO_printf(bio_err, 1872 "Warning: Unable to add custom extension %u, skipping\n", 1873 serverinfo_types[i]); 1874 } 1875 } 1876 1877 if (state) 1878 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1879 1880 #ifndef OPENSSL_NO_CT 1881 /* Enable SCT processing, without early connection termination */ 1882 if (ct_validation && 1883 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) { 1884 ERR_print_errors(bio_err); 1885 goto end; 1886 } 1887 1888 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) { 1889 if (ct_validation) { 1890 ERR_print_errors(bio_err); 1891 goto end; 1892 } 1893 1894 /* 1895 * If CT validation is not enabled, the log list isn't needed so don't 1896 * show errors or abort. We try to load it regardless because then we 1897 * can show the names of the logs any SCTs came from (SCTs may be seen 1898 * even with validation disabled). 1899 */ 1900 ERR_clear_error(); 1901 } 1902 #endif 1903 1904 SSL_CTX_set_verify(ctx, verify, verify_callback); 1905 1906 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) { 1907 ERR_print_errors(bio_err); 1908 goto end; 1909 } 1910 1911 ssl_ctx_add_crls(ctx, crls, crl_download); 1912 1913 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain)) 1914 goto end; 1915 1916 if (!noservername) { 1917 tlsextcbp.biodebug = bio_err; 1918 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1919 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1920 } 1921 # ifndef OPENSSL_NO_SRP 1922 if (srp_arg.srplogin) { 1923 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { 1924 BIO_printf(bio_err, "Unable to set SRP username\n"); 1925 goto end; 1926 } 1927 srp_arg.msg = c_msg; 1928 srp_arg.debug = c_debug; 1929 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); 1930 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1931 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1932 if (c_msg || c_debug || srp_arg.amp == 0) 1933 SSL_CTX_set_srp_verify_param_callback(ctx, 1934 ssl_srp_verify_param_cb); 1935 } 1936 # endif 1937 1938 if (dane_tlsa_domain != NULL) { 1939 if (SSL_CTX_dane_enable(ctx) <= 0) { 1940 BIO_printf(bio_err, 1941 "%s: Error enabling DANE TLSA authentication.\n", 1942 prog); 1943 ERR_print_errors(bio_err); 1944 goto end; 1945 } 1946 } 1947 1948 /* 1949 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can 1950 * come at any time. Therefore we use a callback to write out the session 1951 * when we know about it. This approach works for < TLSv1.3 as well. 1952 */ 1953 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT 1954 | SSL_SESS_CACHE_NO_INTERNAL_STORE); 1955 SSL_CTX_sess_set_new_cb(ctx, new_session_cb); 1956 1957 if (set_keylog_file(ctx, keylog_file)) 1958 goto end; 1959 1960 con = SSL_new(ctx); 1961 if (con == NULL) 1962 goto end; 1963 1964 if (enable_pha) 1965 SSL_set_post_handshake_auth(con, 1); 1966 1967 if (sess_in != NULL) { 1968 SSL_SESSION *sess; 1969 BIO *stmp = BIO_new_file(sess_in, "r"); 1970 if (stmp == NULL) { 1971 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1972 ERR_print_errors(bio_err); 1973 goto end; 1974 } 1975 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1976 BIO_free(stmp); 1977 if (sess == NULL) { 1978 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1979 ERR_print_errors(bio_err); 1980 goto end; 1981 } 1982 if (!SSL_set_session(con, sess)) { 1983 BIO_printf(bio_err, "Can't set session\n"); 1984 ERR_print_errors(bio_err); 1985 goto end; 1986 } 1987 1988 SSL_SESSION_free(sess); 1989 } 1990 1991 if (fallback_scsv) 1992 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 1993 1994 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) { 1995 if (servername == NULL) { 1996 if(host == NULL || is_dNS_name(host)) 1997 servername = (host == NULL) ? "localhost" : host; 1998 } 1999 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) { 2000 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 2001 ERR_print_errors(bio_err); 2002 goto end; 2003 } 2004 } 2005 2006 if (dane_tlsa_domain != NULL) { 2007 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) { 2008 BIO_printf(bio_err, "%s: Error enabling DANE TLSA " 2009 "authentication.\n", prog); 2010 ERR_print_errors(bio_err); 2011 goto end; 2012 } 2013 if (dane_tlsa_rrset == NULL) { 2014 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at " 2015 "least one -dane_tlsa_rrdata option.\n", prog); 2016 goto end; 2017 } 2018 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) { 2019 BIO_printf(bio_err, "%s: Failed to import any TLSA " 2020 "records.\n", prog); 2021 goto end; 2022 } 2023 if (dane_ee_no_name) 2024 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS); 2025 } else if (dane_tlsa_rrset != NULL) { 2026 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the " 2027 "-dane_tlsa_domain option.\n", prog); 2028 goto end; 2029 } 2030 2031 re_start: 2032 if (init_client(&s, host, port, bindhost, bindport, socket_family, 2033 socket_type, protocol) == 0) { 2034 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); 2035 BIO_closesocket(s); 2036 goto end; 2037 } 2038 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 2039 2040 if (c_nbio) { 2041 if (!BIO_socket_nbio(s, 1)) { 2042 ERR_print_errors(bio_err); 2043 goto end; 2044 } 2045 BIO_printf(bio_c_out, "Turned on non blocking io\n"); 2046 } 2047 #ifndef OPENSSL_NO_DTLS 2048 if (isdtls) { 2049 union BIO_sock_info_u peer_info; 2050 2051 #ifndef OPENSSL_NO_SCTP 2052 if (protocol == IPPROTO_SCTP) 2053 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE); 2054 else 2055 #endif 2056 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 2057 2058 if ((peer_info.addr = BIO_ADDR_new()) == NULL) { 2059 BIO_printf(bio_err, "memory allocation failure\n"); 2060 BIO_closesocket(s); 2061 goto end; 2062 } 2063 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) { 2064 BIO_printf(bio_err, "getsockname:errno=%d\n", 2065 get_last_socket_error()); 2066 BIO_ADDR_free(peer_info.addr); 2067 BIO_closesocket(s); 2068 goto end; 2069 } 2070 2071 (void)BIO_ctrl_set_connected(sbio, peer_info.addr); 2072 BIO_ADDR_free(peer_info.addr); 2073 peer_info.addr = NULL; 2074 2075 if (enable_timeouts) { 2076 timeout.tv_sec = 0; 2077 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 2078 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 2079 2080 timeout.tv_sec = 0; 2081 timeout.tv_usec = DGRAM_SND_TIMEOUT; 2082 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 2083 } 2084 2085 if (socket_mtu) { 2086 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 2087 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 2088 DTLS_get_link_min_mtu(con)); 2089 BIO_free(sbio); 2090 goto shut; 2091 } 2092 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 2093 if (!DTLS_set_link_mtu(con, socket_mtu)) { 2094 BIO_printf(bio_err, "Failed to set MTU\n"); 2095 BIO_free(sbio); 2096 goto shut; 2097 } 2098 } else { 2099 /* want to do MTU discovery */ 2100 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 2101 } 2102 } else 2103 #endif /* OPENSSL_NO_DTLS */ 2104 sbio = BIO_new_socket(s, BIO_NOCLOSE); 2105 2106 if (nbio_test) { 2107 BIO *test; 2108 2109 test = BIO_new(BIO_f_nbio_test()); 2110 sbio = BIO_push(test, sbio); 2111 } 2112 2113 if (c_debug) { 2114 BIO_set_callback(sbio, bio_dump_callback); 2115 BIO_set_callback_arg(sbio, (char *)bio_c_out); 2116 } 2117 if (c_msg) { 2118 #ifndef OPENSSL_NO_SSL_TRACE 2119 if (c_msg == 2) 2120 SSL_set_msg_callback(con, SSL_trace); 2121 else 2122 #endif 2123 SSL_set_msg_callback(con, msg_cb); 2124 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out); 2125 } 2126 2127 if (c_tlsextdebug) { 2128 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2129 SSL_set_tlsext_debug_arg(con, bio_c_out); 2130 } 2131 #ifndef OPENSSL_NO_OCSP 2132 if (c_status_req) { 2133 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 2134 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 2135 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 2136 } 2137 #endif 2138 2139 SSL_set_bio(con, sbio, sbio); 2140 SSL_set_connect_state(con); 2141 2142 /* ok, lets connect */ 2143 if (fileno_stdin() > SSL_get_fd(con)) 2144 width = fileno_stdin() + 1; 2145 else 2146 width = SSL_get_fd(con) + 1; 2147 2148 read_tty = 1; 2149 write_tty = 0; 2150 tty_on = 0; 2151 read_ssl = 1; 2152 write_ssl = 1; 2153 2154 cbuf_len = 0; 2155 cbuf_off = 0; 2156 sbuf_len = 0; 2157 sbuf_off = 0; 2158 2159 switch ((PROTOCOL_CHOICE) starttls_proto) { 2160 case PROTO_OFF: 2161 break; 2162 case PROTO_LMTP: 2163 case PROTO_SMTP: 2164 { 2165 /* 2166 * This is an ugly hack that does a lot of assumptions. We do 2167 * have to handle multi-line responses which may come in a single 2168 * packet or not. We therefore have to use BIO_gets() which does 2169 * need a buffering BIO. So during the initial chitchat we do 2170 * push a buffering BIO into the chain that is removed again 2171 * later on to not disturb the rest of the s_client operation. 2172 */ 2173 int foundit = 0; 2174 BIO *fbio = BIO_new(BIO_f_buffer()); 2175 2176 BIO_push(fbio, sbio); 2177 /* Wait for multi-line response to end from LMTP or SMTP */ 2178 do { 2179 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2180 } while (mbuf_len > 3 && mbuf[3] == '-'); 2181 if (protohost == NULL) 2182 protohost = "mail.example.com"; 2183 if (starttls_proto == (int)PROTO_LMTP) 2184 BIO_printf(fbio, "LHLO %s\r\n", protohost); 2185 else 2186 BIO_printf(fbio, "EHLO %s\r\n", protohost); 2187 (void)BIO_flush(fbio); 2188 /* 2189 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP 2190 * response. 2191 */ 2192 do { 2193 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2194 if (strstr(mbuf, "STARTTLS")) 2195 foundit = 1; 2196 } while (mbuf_len > 3 && mbuf[3] == '-'); 2197 (void)BIO_flush(fbio); 2198 BIO_pop(fbio); 2199 BIO_free(fbio); 2200 if (!foundit) 2201 BIO_printf(bio_err, 2202 "Didn't find STARTTLS in server response," 2203 " trying anyway...\n"); 2204 BIO_printf(sbio, "STARTTLS\r\n"); 2205 BIO_read(sbio, sbuf, BUFSIZZ); 2206 } 2207 break; 2208 case PROTO_POP3: 2209 { 2210 BIO_read(sbio, mbuf, BUFSIZZ); 2211 BIO_printf(sbio, "STLS\r\n"); 2212 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ); 2213 if (mbuf_len < 0) { 2214 BIO_printf(bio_err, "BIO_read failed\n"); 2215 goto end; 2216 } 2217 } 2218 break; 2219 case PROTO_IMAP: 2220 { 2221 int foundit = 0; 2222 BIO *fbio = BIO_new(BIO_f_buffer()); 2223 2224 BIO_push(fbio, sbio); 2225 BIO_gets(fbio, mbuf, BUFSIZZ); 2226 /* STARTTLS command requires CAPABILITY... */ 2227 BIO_printf(fbio, ". CAPABILITY\r\n"); 2228 (void)BIO_flush(fbio); 2229 /* wait for multi-line CAPABILITY response */ 2230 do { 2231 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2232 if (strstr(mbuf, "STARTTLS")) 2233 foundit = 1; 2234 } 2235 while (mbuf_len > 3 && mbuf[0] != '.'); 2236 (void)BIO_flush(fbio); 2237 BIO_pop(fbio); 2238 BIO_free(fbio); 2239 if (!foundit) 2240 BIO_printf(bio_err, 2241 "Didn't find STARTTLS in server response," 2242 " trying anyway...\n"); 2243 BIO_printf(sbio, ". STARTTLS\r\n"); 2244 BIO_read(sbio, sbuf, BUFSIZZ); 2245 } 2246 break; 2247 case PROTO_FTP: 2248 { 2249 BIO *fbio = BIO_new(BIO_f_buffer()); 2250 2251 BIO_push(fbio, sbio); 2252 /* wait for multi-line response to end from FTP */ 2253 do { 2254 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2255 } 2256 while (mbuf_len > 3 && (!isdigit((unsigned char)mbuf[0]) || 2257 !isdigit((unsigned char)mbuf[1]) || 2258 !isdigit((unsigned char)mbuf[2]) || 2259 mbuf[3] != ' ')); 2260 (void)BIO_flush(fbio); 2261 BIO_pop(fbio); 2262 BIO_free(fbio); 2263 BIO_printf(sbio, "AUTH TLS\r\n"); 2264 BIO_read(sbio, sbuf, BUFSIZZ); 2265 } 2266 break; 2267 case PROTO_XMPP: 2268 case PROTO_XMPP_SERVER: 2269 { 2270 int seen = 0; 2271 BIO_printf(sbio, "<stream:stream " 2272 "xmlns:stream='http://etherx.jabber.org/streams' " 2273 "xmlns='jabber:%s' to='%s' version='1.0'>", 2274 starttls_proto == PROTO_XMPP ? "client" : "server", 2275 protohost ? protohost : host); 2276 seen = BIO_read(sbio, mbuf, BUFSIZZ); 2277 if (seen < 0) { 2278 BIO_printf(bio_err, "BIO_read failed\n"); 2279 goto end; 2280 } 2281 mbuf[seen] = '\0'; 2282 while (!strstr 2283 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") 2284 && !strstr(mbuf, 2285 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) 2286 { 2287 seen = BIO_read(sbio, mbuf, BUFSIZZ); 2288 2289 if (seen <= 0) 2290 goto shut; 2291 2292 mbuf[seen] = '\0'; 2293 } 2294 BIO_printf(sbio, 2295 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 2296 seen = BIO_read(sbio, sbuf, BUFSIZZ); 2297 if (seen < 0) { 2298 BIO_printf(bio_err, "BIO_read failed\n"); 2299 goto shut; 2300 } 2301 sbuf[seen] = '\0'; 2302 if (!strstr(sbuf, "<proceed")) 2303 goto shut; 2304 mbuf[0] = '\0'; 2305 } 2306 break; 2307 case PROTO_TELNET: 2308 { 2309 static const unsigned char tls_do[] = { 2310 /* IAC DO START_TLS */ 2311 255, 253, 46 2312 }; 2313 static const unsigned char tls_will[] = { 2314 /* IAC WILL START_TLS */ 2315 255, 251, 46 2316 }; 2317 static const unsigned char tls_follows[] = { 2318 /* IAC SB START_TLS FOLLOWS IAC SE */ 2319 255, 250, 46, 1, 255, 240 2320 }; 2321 int bytes; 2322 2323 /* Telnet server should demand we issue START_TLS */ 2324 bytes = BIO_read(sbio, mbuf, BUFSIZZ); 2325 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0) 2326 goto shut; 2327 /* Agree to issue START_TLS and send the FOLLOWS sub-command */ 2328 BIO_write(sbio, tls_will, 3); 2329 BIO_write(sbio, tls_follows, 6); 2330 (void)BIO_flush(sbio); 2331 /* Telnet server also sent the FOLLOWS sub-command */ 2332 bytes = BIO_read(sbio, mbuf, BUFSIZZ); 2333 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0) 2334 goto shut; 2335 } 2336 break; 2337 case PROTO_CONNECT: 2338 { 2339 enum { 2340 error_proto, /* Wrong protocol, not even HTTP */ 2341 error_connect, /* CONNECT failed */ 2342 success 2343 } foundit = error_connect; 2344 BIO *fbio = BIO_new(BIO_f_buffer()); 2345 2346 BIO_push(fbio, sbio); 2347 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr); 2348 (void)BIO_flush(fbio); 2349 /* 2350 * The first line is the HTTP response. According to RFC 7230, 2351 * it's formated exactly like this: 2352 * 2353 * HTTP/d.d ddd Reason text\r\n 2354 */ 2355 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2356 if (mbuf_len < (int)strlen("HTTP/1.0 200")) { 2357 BIO_printf(bio_err, 2358 "%s: HTTP CONNECT failed, insufficient response " 2359 "from proxy (got %d octets)\n", prog, mbuf_len); 2360 (void)BIO_flush(fbio); 2361 BIO_pop(fbio); 2362 BIO_free(fbio); 2363 goto shut; 2364 } 2365 if (mbuf[8] != ' ') { 2366 BIO_printf(bio_err, 2367 "%s: HTTP CONNECT failed, incorrect response " 2368 "from proxy\n", prog); 2369 foundit = error_proto; 2370 } else if (mbuf[9] != '2') { 2371 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog, 2372 &mbuf[9]); 2373 } else { 2374 foundit = success; 2375 } 2376 if (foundit != error_proto) { 2377 /* Read past all following headers */ 2378 do { 2379 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2380 } while (mbuf_len > 2); 2381 } 2382 (void)BIO_flush(fbio); 2383 BIO_pop(fbio); 2384 BIO_free(fbio); 2385 if (foundit != success) { 2386 goto shut; 2387 } 2388 } 2389 break; 2390 case PROTO_IRC: 2391 { 2392 int numeric; 2393 BIO *fbio = BIO_new(BIO_f_buffer()); 2394 2395 BIO_push(fbio, sbio); 2396 BIO_printf(fbio, "STARTTLS\r\n"); 2397 (void)BIO_flush(fbio); 2398 width = SSL_get_fd(con) + 1; 2399 2400 do { 2401 numeric = 0; 2402 2403 FD_ZERO(&readfds); 2404 openssl_fdset(SSL_get_fd(con), &readfds); 2405 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT; 2406 timeout.tv_usec = 0; 2407 /* 2408 * If the IRCd doesn't respond within 2409 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume 2410 * it doesn't support STARTTLS. Many IRCds 2411 * will not give _any_ sort of response to a 2412 * STARTTLS command when it's not supported. 2413 */ 2414 if (!BIO_get_buffer_num_lines(fbio) 2415 && !BIO_pending(fbio) 2416 && !BIO_pending(sbio) 2417 && select(width, (void *)&readfds, NULL, NULL, 2418 &timeout) < 1) { 2419 BIO_printf(bio_err, 2420 "Timeout waiting for response (%d seconds).\n", 2421 S_CLIENT_IRC_READ_TIMEOUT); 2422 break; 2423 } 2424 2425 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2426 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1) 2427 break; 2428 /* :example.net 451 STARTTLS :You have not registered */ 2429 /* :example.net 421 STARTTLS :Unknown command */ 2430 if ((numeric == 451 || numeric == 421) 2431 && strstr(mbuf, "STARTTLS") != NULL) { 2432 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf); 2433 break; 2434 } 2435 if (numeric == 691) { 2436 BIO_printf(bio_err, "STARTTLS negotiation failed: "); 2437 ERR_print_errors(bio_err); 2438 break; 2439 } 2440 } while (numeric != 670); 2441 2442 (void)BIO_flush(fbio); 2443 BIO_pop(fbio); 2444 BIO_free(fbio); 2445 if (numeric != 670) { 2446 BIO_printf(bio_err, "Server does not support STARTTLS.\n"); 2447 ret = 1; 2448 goto shut; 2449 } 2450 } 2451 break; 2452 case PROTO_MYSQL: 2453 { 2454 /* SSL request packet */ 2455 static const unsigned char ssl_req[] = { 2456 /* payload_length, sequence_id */ 2457 0x20, 0x00, 0x00, 0x01, 2458 /* payload */ 2459 /* capability flags, CLIENT_SSL always set */ 2460 0x85, 0xae, 0x7f, 0x00, 2461 /* max-packet size */ 2462 0x00, 0x00, 0x00, 0x01, 2463 /* character set */ 2464 0x21, 2465 /* string[23] reserved (all [0]) */ 2466 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 2467 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 2468 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 2469 }; 2470 int bytes = 0; 2471 int ssl_flg = 0x800; 2472 int pos; 2473 const unsigned char *packet = (const unsigned char *)sbuf; 2474 2475 /* Receiving Initial Handshake packet. */ 2476 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ); 2477 if (bytes < 0) { 2478 BIO_printf(bio_err, "BIO_read failed\n"); 2479 goto shut; 2480 /* Packet length[3], Packet number[1] + minimum payload[17] */ 2481 } else if (bytes < 21) { 2482 BIO_printf(bio_err, "MySQL packet too short.\n"); 2483 goto shut; 2484 } else if (bytes != (4 + packet[0] + 2485 (packet[1] << 8) + 2486 (packet[2] << 16))) { 2487 BIO_printf(bio_err, "MySQL packet length does not match.\n"); 2488 goto shut; 2489 /* protocol version[1] */ 2490 } else if (packet[4] != 0xA) { 2491 BIO_printf(bio_err, 2492 "Only MySQL protocol version 10 is supported.\n"); 2493 goto shut; 2494 } 2495 2496 pos = 5; 2497 /* server version[string+NULL] */ 2498 for (;;) { 2499 if (pos >= bytes) { 2500 BIO_printf(bio_err, "Cannot confirm server version. "); 2501 goto shut; 2502 } else if (packet[pos++] == '\0') { 2503 break; 2504 } 2505 } 2506 2507 /* make sure we have at least 15 bytes left in the packet */ 2508 if (pos + 15 > bytes) { 2509 BIO_printf(bio_err, 2510 "MySQL server handshake packet is broken.\n"); 2511 goto shut; 2512 } 2513 2514 pos += 12; /* skip over conn id[4] + SALT[8] */ 2515 if (packet[pos++] != '\0') { /* verify filler */ 2516 BIO_printf(bio_err, 2517 "MySQL packet is broken.\n"); 2518 goto shut; 2519 } 2520 2521 /* capability flags[2] */ 2522 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) { 2523 BIO_printf(bio_err, "MySQL server does not support SSL.\n"); 2524 goto shut; 2525 } 2526 2527 /* Sending SSL Handshake packet. */ 2528 BIO_write(sbio, ssl_req, sizeof(ssl_req)); 2529 (void)BIO_flush(sbio); 2530 } 2531 break; 2532 case PROTO_POSTGRES: 2533 { 2534 static const unsigned char ssl_request[] = { 2535 /* Length SSLRequest */ 2536 0, 0, 0, 8, 4, 210, 22, 47 2537 }; 2538 int bytes; 2539 2540 /* Send SSLRequest packet */ 2541 BIO_write(sbio, ssl_request, 8); 2542 (void)BIO_flush(sbio); 2543 2544 /* Reply will be a single S if SSL is enabled */ 2545 bytes = BIO_read(sbio, sbuf, BUFSIZZ); 2546 if (bytes != 1 || sbuf[0] != 'S') 2547 goto shut; 2548 } 2549 break; 2550 case PROTO_NNTP: 2551 { 2552 int foundit = 0; 2553 BIO *fbio = BIO_new(BIO_f_buffer()); 2554 2555 BIO_push(fbio, sbio); 2556 BIO_gets(fbio, mbuf, BUFSIZZ); 2557 /* STARTTLS command requires CAPABILITIES... */ 2558 BIO_printf(fbio, "CAPABILITIES\r\n"); 2559 (void)BIO_flush(fbio); 2560 /* wait for multi-line CAPABILITIES response */ 2561 do { 2562 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2563 if (strstr(mbuf, "STARTTLS")) 2564 foundit = 1; 2565 } while (mbuf_len > 1 && mbuf[0] != '.'); 2566 (void)BIO_flush(fbio); 2567 BIO_pop(fbio); 2568 BIO_free(fbio); 2569 if (!foundit) 2570 BIO_printf(bio_err, 2571 "Didn't find STARTTLS in server response," 2572 " trying anyway...\n"); 2573 BIO_printf(sbio, "STARTTLS\r\n"); 2574 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2575 if (mbuf_len < 0) { 2576 BIO_printf(bio_err, "BIO_read failed\n"); 2577 goto end; 2578 } 2579 mbuf[mbuf_len] = '\0'; 2580 if (strstr(mbuf, "382") == NULL) { 2581 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf); 2582 goto shut; 2583 } 2584 } 2585 break; 2586 case PROTO_SIEVE: 2587 { 2588 int foundit = 0; 2589 BIO *fbio = BIO_new(BIO_f_buffer()); 2590 2591 BIO_push(fbio, sbio); 2592 /* wait for multi-line response to end from Sieve */ 2593 do { 2594 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2595 /* 2596 * According to RFC 5804 1.7, capability 2597 * is case-insensitive, make it uppercase 2598 */ 2599 if (mbuf_len > 1 && mbuf[0] == '"') { 2600 make_uppercase(mbuf); 2601 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0) 2602 foundit = 1; 2603 } 2604 } while (mbuf_len > 1 && mbuf[0] == '"'); 2605 (void)BIO_flush(fbio); 2606 BIO_pop(fbio); 2607 BIO_free(fbio); 2608 if (!foundit) 2609 BIO_printf(bio_err, 2610 "Didn't find STARTTLS in server response," 2611 " trying anyway...\n"); 2612 BIO_printf(sbio, "STARTTLS\r\n"); 2613 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2614 if (mbuf_len < 0) { 2615 BIO_printf(bio_err, "BIO_read failed\n"); 2616 goto end; 2617 } 2618 mbuf[mbuf_len] = '\0'; 2619 if (mbuf_len < 2) { 2620 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf); 2621 goto shut; 2622 } 2623 /* 2624 * According to RFC 5804 2.2, response codes are case- 2625 * insensitive, make it uppercase but preserve the response. 2626 */ 2627 strncpy(sbuf, mbuf, 2); 2628 make_uppercase(sbuf); 2629 if (strncmp(sbuf, "OK", 2) != 0) { 2630 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf); 2631 goto shut; 2632 } 2633 } 2634 break; 2635 case PROTO_LDAP: 2636 { 2637 /* StartTLS Operation according to RFC 4511 */ 2638 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n" 2639 "[LDAPMessage]\n" 2640 "messageID=INTEGER:1\n" 2641 "extendedReq=EXPLICIT:23A,IMPLICIT:0C," 2642 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n"; 2643 long errline = -1; 2644 char *genstr = NULL; 2645 int result = -1; 2646 ASN1_TYPE *atyp = NULL; 2647 BIO *ldapbio = BIO_new(BIO_s_mem()); 2648 CONF *cnf = NCONF_new(NULL); 2649 2650 if (cnf == NULL) { 2651 BIO_free(ldapbio); 2652 goto end; 2653 } 2654 BIO_puts(ldapbio, ldap_tls_genconf); 2655 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) { 2656 BIO_free(ldapbio); 2657 NCONF_free(cnf); 2658 if (errline <= 0) { 2659 BIO_printf(bio_err, "NCONF_load_bio failed\n"); 2660 goto end; 2661 } else { 2662 BIO_printf(bio_err, "Error on line %ld\n", errline); 2663 goto end; 2664 } 2665 } 2666 BIO_free(ldapbio); 2667 genstr = NCONF_get_string(cnf, "default", "asn1"); 2668 if (genstr == NULL) { 2669 NCONF_free(cnf); 2670 BIO_printf(bio_err, "NCONF_get_string failed\n"); 2671 goto end; 2672 } 2673 atyp = ASN1_generate_nconf(genstr, cnf); 2674 if (atyp == NULL) { 2675 NCONF_free(cnf); 2676 BIO_printf(bio_err, "ASN1_generate_nconf failed\n"); 2677 goto end; 2678 } 2679 NCONF_free(cnf); 2680 2681 /* Send SSLRequest packet */ 2682 BIO_write(sbio, atyp->value.sequence->data, 2683 atyp->value.sequence->length); 2684 (void)BIO_flush(sbio); 2685 ASN1_TYPE_free(atyp); 2686 2687 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2688 if (mbuf_len < 0) { 2689 BIO_printf(bio_err, "BIO_read failed\n"); 2690 goto end; 2691 } 2692 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len); 2693 if (result < 0) { 2694 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n"); 2695 goto shut; 2696 } else if (result > 0) { 2697 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n", 2698 result); 2699 goto shut; 2700 } 2701 mbuf_len = 0; 2702 } 2703 break; 2704 } 2705 2706 if (early_data_file != NULL 2707 && ((SSL_get0_session(con) != NULL 2708 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0) 2709 || (psksess != NULL 2710 && SSL_SESSION_get_max_early_data(psksess) > 0))) { 2711 BIO *edfile = BIO_new_file(early_data_file, "r"); 2712 size_t readbytes, writtenbytes; 2713 int finish = 0; 2714 2715 if (edfile == NULL) { 2716 BIO_printf(bio_err, "Cannot open early data file\n"); 2717 goto shut; 2718 } 2719 2720 while (!finish) { 2721 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes)) 2722 finish = 1; 2723 2724 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) { 2725 switch (SSL_get_error(con, 0)) { 2726 case SSL_ERROR_WANT_WRITE: 2727 case SSL_ERROR_WANT_ASYNC: 2728 case SSL_ERROR_WANT_READ: 2729 /* Just keep trying - busy waiting */ 2730 continue; 2731 default: 2732 BIO_printf(bio_err, "Error writing early data\n"); 2733 BIO_free(edfile); 2734 ERR_print_errors(bio_err); 2735 goto shut; 2736 } 2737 } 2738 } 2739 2740 BIO_free(edfile); 2741 } 2742 2743 for (;;) { 2744 FD_ZERO(&readfds); 2745 FD_ZERO(&writefds); 2746 int fdin = fileno_stdin(); 2747 if (fdin < 0) { 2748 BIO_printf(bio_err,"bad fileno for stdin\n"); 2749 goto shut; 2750 } 2751 int fdout = fileno_stdout(); 2752 if (fdout < 0) { 2753 BIO_printf(bio_err,"bad fileno for stdout\n"); 2754 goto shut; 2755 } 2756 2757 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout)) 2758 timeoutp = &timeout; 2759 else 2760 timeoutp = NULL; 2761 2762 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0 2763 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) { 2764 in_init = 1; 2765 tty_on = 0; 2766 } else { 2767 tty_on = 1; 2768 if (in_init) { 2769 in_init = 0; 2770 2771 if (c_brief) { 2772 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n"); 2773 print_ssl_summary(con); 2774 } 2775 2776 print_stuff(bio_c_out, con, full_log); 2777 if (full_log > 0) 2778 full_log--; 2779 2780 if (starttls_proto) { 2781 BIO_write(bio_err, mbuf, mbuf_len); 2782 /* We don't need to know any more */ 2783 if (!reconnect) 2784 starttls_proto = PROTO_OFF; 2785 } 2786 2787 if (reconnect) { 2788 reconnect--; 2789 BIO_printf(bio_c_out, 2790 "drop connection and then reconnect\n"); 2791 do_ssl_shutdown(con); 2792 SSL_set_connect_state(con); 2793 BIO_closesocket(SSL_get_fd(con)); 2794 goto re_start; 2795 } 2796 } 2797 } 2798 2799 ssl_pending = read_ssl && SSL_has_pending(con); 2800 2801 if (!ssl_pending) { 2802 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 2803 if (tty_on) { 2804 /* 2805 * Note that select() returns when read _would not block_, 2806 * and EOF satisfies that. To avoid a CPU-hogging loop, 2807 * set the flag so we exit. 2808 */ 2809 if (read_tty && !at_eof) 2810 openssl_fdset(fileno_stdin(), &readfds); 2811 #if !defined(OPENSSL_SYS_VMS) 2812 if (write_tty) 2813 openssl_fdset(fdout, &writefds); 2814 #endif 2815 } 2816 if (read_ssl) 2817 openssl_fdset(SSL_get_fd(con), &readfds); 2818 if (write_ssl) 2819 openssl_fdset(SSL_get_fd(con), &writefds); 2820 #else 2821 if (!tty_on || !write_tty) { 2822 if (read_ssl) 2823 openssl_fdset(SSL_get_fd(con), &readfds); 2824 if (write_ssl) 2825 openssl_fdset(SSL_get_fd(con), &writefds); 2826 } 2827 #endif 2828 2829 /* 2830 * Note: under VMS with SOCKETSHR the second parameter is 2831 * currently of type (int *) whereas under other systems it is 2832 * (void *) if you don't have a cast it will choke the compiler: 2833 * if you do have a cast then you can either go for (int *) or 2834 * (void *). 2835 */ 2836 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2837 /* 2838 * Under Windows/DOS we make the assumption that we can always 2839 * write to the tty: therefore if we need to write to the tty we 2840 * just fall through. Otherwise we timeout the select every 2841 * second and see if there are any keypresses. Note: this is a 2842 * hack, in a proper Windows application we wouldn't do this. 2843 */ 2844 i = 0; 2845 if (!write_tty) { 2846 if (read_tty) { 2847 tv.tv_sec = 1; 2848 tv.tv_usec = 0; 2849 i = select(width, (void *)&readfds, (void *)&writefds, 2850 NULL, &tv); 2851 if (!i && (!has_stdin_waiting() || !read_tty)) 2852 continue; 2853 } else 2854 i = select(width, (void *)&readfds, (void *)&writefds, 2855 NULL, timeoutp); 2856 } 2857 #else 2858 i = select(width, (void *)&readfds, (void *)&writefds, 2859 NULL, timeoutp); 2860 #endif 2861 if (i < 0) { 2862 BIO_printf(bio_err, "bad select %d\n", 2863 get_last_socket_error()); 2864 goto shut; 2865 } 2866 } 2867 2868 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0) 2869 BIO_printf(bio_err, "TIMEOUT occurred\n"); 2870 2871 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { 2872 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); 2873 switch (SSL_get_error(con, k)) { 2874 case SSL_ERROR_NONE: 2875 cbuf_off += k; 2876 cbuf_len -= k; 2877 if (k <= 0) 2878 goto end; 2879 /* we have done a write(con,NULL,0); */ 2880 if (cbuf_len <= 0) { 2881 read_tty = 1; 2882 write_ssl = 0; 2883 } else { /* if (cbuf_len > 0) */ 2884 2885 read_tty = 0; 2886 write_ssl = 1; 2887 } 2888 break; 2889 case SSL_ERROR_WANT_WRITE: 2890 BIO_printf(bio_c_out, "write W BLOCK\n"); 2891 write_ssl = 1; 2892 read_tty = 0; 2893 break; 2894 case SSL_ERROR_WANT_ASYNC: 2895 BIO_printf(bio_c_out, "write A BLOCK\n"); 2896 wait_for_async(con); 2897 write_ssl = 1; 2898 read_tty = 0; 2899 break; 2900 case SSL_ERROR_WANT_READ: 2901 BIO_printf(bio_c_out, "write R BLOCK\n"); 2902 write_tty = 0; 2903 read_ssl = 1; 2904 write_ssl = 0; 2905 break; 2906 case SSL_ERROR_WANT_X509_LOOKUP: 2907 BIO_printf(bio_c_out, "write X BLOCK\n"); 2908 break; 2909 case SSL_ERROR_ZERO_RETURN: 2910 if (cbuf_len != 0) { 2911 BIO_printf(bio_c_out, "shutdown\n"); 2912 ret = 0; 2913 goto shut; 2914 } else { 2915 read_tty = 1; 2916 write_ssl = 0; 2917 break; 2918 } 2919 2920 case SSL_ERROR_SYSCALL: 2921 if ((k != 0) || (cbuf_len != 0)) { 2922 BIO_printf(bio_err, "write:errno=%d\n", 2923 get_last_socket_error()); 2924 goto shut; 2925 } else { 2926 read_tty = 1; 2927 write_ssl = 0; 2928 } 2929 break; 2930 case SSL_ERROR_WANT_ASYNC_JOB: 2931 /* This shouldn't ever happen in s_client - treat as an error */ 2932 case SSL_ERROR_SSL: 2933 ERR_print_errors(bio_err); 2934 goto shut; 2935 } 2936 } 2937 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS) 2938 /* Assume Windows/DOS/BeOS can always write */ 2939 else if (!ssl_pending && write_tty) 2940 #else 2941 else if (!ssl_pending && FD_ISSET(fdout, &writefds)) 2942 #endif 2943 { 2944 #ifdef CHARSET_EBCDIC 2945 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); 2946 #endif 2947 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); 2948 2949 if (i <= 0) { 2950 BIO_printf(bio_c_out, "DONE\n"); 2951 ret = 0; 2952 goto shut; 2953 } 2954 2955 sbuf_len -= i; 2956 sbuf_off += i; 2957 if (sbuf_len <= 0) { 2958 read_ssl = 1; 2959 write_tty = 0; 2960 } 2961 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { 2962 #ifdef RENEG 2963 { 2964 static int iiii; 2965 if (++iiii == 52) { 2966 SSL_renegotiate(con); 2967 iiii = 0; 2968 } 2969 } 2970 #endif 2971 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 2972 2973 switch (SSL_get_error(con, k)) { 2974 case SSL_ERROR_NONE: 2975 if (k <= 0) 2976 goto end; 2977 sbuf_off = 0; 2978 sbuf_len = k; 2979 2980 read_ssl = 0; 2981 write_tty = 1; 2982 break; 2983 case SSL_ERROR_WANT_ASYNC: 2984 BIO_printf(bio_c_out, "read A BLOCK\n"); 2985 wait_for_async(con); 2986 write_tty = 0; 2987 read_ssl = 1; 2988 if ((read_tty == 0) && (write_ssl == 0)) 2989 write_ssl = 1; 2990 break; 2991 case SSL_ERROR_WANT_WRITE: 2992 BIO_printf(bio_c_out, "read W BLOCK\n"); 2993 write_ssl = 1; 2994 read_tty = 0; 2995 break; 2996 case SSL_ERROR_WANT_READ: 2997 BIO_printf(bio_c_out, "read R BLOCK\n"); 2998 write_tty = 0; 2999 read_ssl = 1; 3000 if ((read_tty == 0) && (write_ssl == 0)) 3001 write_ssl = 1; 3002 break; 3003 case SSL_ERROR_WANT_X509_LOOKUP: 3004 BIO_printf(bio_c_out, "read X BLOCK\n"); 3005 break; 3006 case SSL_ERROR_SYSCALL: 3007 ret = get_last_socket_error(); 3008 if (c_brief) 3009 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n"); 3010 else 3011 BIO_printf(bio_err, "read:errno=%d\n", ret); 3012 goto shut; 3013 case SSL_ERROR_ZERO_RETURN: 3014 BIO_printf(bio_c_out, "closed\n"); 3015 ret = 0; 3016 goto shut; 3017 case SSL_ERROR_WANT_ASYNC_JOB: 3018 /* This shouldn't ever happen in s_client. Treat as an error */ 3019 case SSL_ERROR_SSL: 3020 ERR_print_errors(bio_err); 3021 goto shut; 3022 } 3023 } 3024 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */ 3025 #if defined(OPENSSL_SYS_MSDOS) 3026 else if (has_stdin_waiting()) 3027 #else 3028 else if (FD_ISSET(fdin, &readfds)) 3029 #endif 3030 { 3031 if (crlf) { 3032 int j, lf_num; 3033 3034 i = raw_read_stdin(cbuf, BUFSIZZ / 2); 3035 lf_num = 0; 3036 /* both loops are skipped when i <= 0 */ 3037 for (j = 0; j < i; j++) 3038 if (cbuf[j] == '\n') 3039 lf_num++; 3040 for (j = i - 1; j >= 0; j--) { 3041 cbuf[j + lf_num] = cbuf[j]; 3042 if (cbuf[j] == '\n') { 3043 lf_num--; 3044 i++; 3045 cbuf[j + lf_num] = '\r'; 3046 } 3047 } 3048 assert(lf_num == 0); 3049 } else 3050 i = raw_read_stdin(cbuf, BUFSIZZ); 3051 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 3052 if (i == 0) 3053 at_eof = 1; 3054 #endif 3055 3056 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) { 3057 BIO_printf(bio_err, "DONE\n"); 3058 ret = 0; 3059 goto shut; 3060 } 3061 3062 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) { 3063 BIO_printf(bio_err, "RENEGOTIATING\n"); 3064 SSL_renegotiate(con); 3065 cbuf_len = 0; 3066 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' ) 3067 && cmdletters) { 3068 BIO_printf(bio_err, "KEYUPDATE\n"); 3069 SSL_key_update(con, 3070 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED 3071 : SSL_KEY_UPDATE_NOT_REQUESTED); 3072 cbuf_len = 0; 3073 } 3074 #ifndef OPENSSL_NO_HEARTBEATS 3075 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) { 3076 BIO_printf(bio_err, "HEARTBEATING\n"); 3077 SSL_heartbeat(con); 3078 cbuf_len = 0; 3079 } 3080 #endif 3081 else { 3082 cbuf_len = i; 3083 cbuf_off = 0; 3084 #ifdef CHARSET_EBCDIC 3085 ebcdic2ascii(cbuf, cbuf, i); 3086 #endif 3087 } 3088 3089 write_ssl = 1; 3090 read_tty = 0; 3091 } 3092 } 3093 3094 ret = 0; 3095 shut: 3096 if (in_init) 3097 print_stuff(bio_c_out, con, full_log); 3098 do_ssl_shutdown(con); 3099 3100 /* 3101 * If we ended with an alert being sent, but still with data in the 3102 * network buffer to be read, then calling BIO_closesocket() will 3103 * result in a TCP-RST being sent. On some platforms (notably 3104 * Windows) then this will result in the peer immediately abandoning 3105 * the connection including any buffered alert data before it has 3106 * had a chance to be read. Shutting down the sending side first, 3107 * and then closing the socket sends TCP-FIN first followed by 3108 * TCP-RST. This seems to allow the peer to read the alert data. 3109 */ 3110 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */ 3111 /* 3112 * We just said we have nothing else to say, but it doesn't mean that 3113 * the other side has nothing. It's even recommended to consume incoming 3114 * data. [In testing context this ensures that alerts are passed on...] 3115 */ 3116 timeout.tv_sec = 0; 3117 timeout.tv_usec = 500000; /* some extreme round-trip */ 3118 do { 3119 FD_ZERO(&readfds); 3120 openssl_fdset(s, &readfds); 3121 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0 3122 && BIO_read(sbio, sbuf, BUFSIZZ) > 0); 3123 3124 BIO_closesocket(SSL_get_fd(con)); 3125 end: 3126 if (con != NULL) { 3127 if (prexit != 0) 3128 print_stuff(bio_c_out, con, 1); 3129 SSL_free(con); 3130 } 3131 SSL_SESSION_free(psksess); 3132 #if !defined(OPENSSL_NO_NEXTPROTONEG) 3133 OPENSSL_free(next_proto.data); 3134 #endif 3135 SSL_CTX_free(ctx); 3136 set_keylog_file(NULL, NULL); 3137 X509_free(cert); 3138 sk_X509_CRL_pop_free(crls, X509_CRL_free); 3139 EVP_PKEY_free(key); 3140 sk_X509_pop_free(chain, X509_free); 3141 OPENSSL_free(pass); 3142 #ifndef OPENSSL_NO_SRP 3143 OPENSSL_free(srp_arg.srppassin); 3144 #endif 3145 OPENSSL_free(connectstr); 3146 OPENSSL_free(bindstr); 3147 OPENSSL_free(host); 3148 OPENSSL_free(port); 3149 X509_VERIFY_PARAM_free(vpm); 3150 ssl_excert_free(exc); 3151 sk_OPENSSL_STRING_free(ssl_args); 3152 sk_OPENSSL_STRING_free(dane_tlsa_rrset); 3153 SSL_CONF_CTX_free(cctx); 3154 OPENSSL_clear_free(cbuf, BUFSIZZ); 3155 OPENSSL_clear_free(sbuf, BUFSIZZ); 3156 OPENSSL_clear_free(mbuf, BUFSIZZ); 3157 release_engine(e); 3158 BIO_free(bio_c_out); 3159 bio_c_out = NULL; 3160 BIO_free(bio_c_msg); 3161 bio_c_msg = NULL; 3162 return ret; 3163 } 3164 3165 static void print_stuff(BIO *bio, SSL *s, int full) 3166 { 3167 X509 *peer = NULL; 3168 STACK_OF(X509) *sk; 3169 const SSL_CIPHER *c; 3170 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION); 3171 long verify_result; 3172 #ifndef OPENSSL_NO_COMP 3173 const COMP_METHOD *comp, *expansion; 3174 #endif 3175 unsigned char *exportedkeymat; 3176 #ifndef OPENSSL_NO_CT 3177 const SSL_CTX *ctx = SSL_get_SSL_CTX(s); 3178 #endif 3179 3180 if (full) { 3181 int got_a_chain = 0; 3182 3183 sk = SSL_get_peer_cert_chain(s); 3184 if (sk != NULL) { 3185 got_a_chain = 1; 3186 3187 BIO_printf(bio, "---\nCertificate chain\n"); 3188 for (i = 0; i < sk_X509_num(sk); i++) { 3189 BIO_printf(bio, "%2d s:", i); 3190 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt()); 3191 BIO_puts(bio, "\n"); 3192 BIO_printf(bio, " i:"); 3193 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt()); 3194 BIO_puts(bio, "\n"); 3195 if (c_showcerts) 3196 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 3197 } 3198 } 3199 3200 BIO_printf(bio, "---\n"); 3201 peer = SSL_get_peer_certificate(s); 3202 if (peer != NULL) { 3203 BIO_printf(bio, "Server certificate\n"); 3204 3205 /* Redundant if we showed the whole chain */ 3206 if (!(c_showcerts && got_a_chain)) 3207 PEM_write_bio_X509(bio, peer); 3208 dump_cert_text(bio, peer); 3209 } else { 3210 BIO_printf(bio, "no peer certificate available\n"); 3211 } 3212 print_ca_names(bio, s); 3213 3214 ssl_print_sigalgs(bio, s); 3215 ssl_print_tmp_key(bio, s); 3216 3217 #ifndef OPENSSL_NO_CT 3218 /* 3219 * When the SSL session is anonymous, or resumed via an abbreviated 3220 * handshake, no SCTs are provided as part of the handshake. While in 3221 * a resumed session SCTs may be present in the session's certificate, 3222 * no callbacks are invoked to revalidate these, and in any case that 3223 * set of SCTs may be incomplete. Thus it makes little sense to 3224 * attempt to display SCTs from a resumed session's certificate, and of 3225 * course none are associated with an anonymous peer. 3226 */ 3227 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) { 3228 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s); 3229 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0; 3230 3231 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count); 3232 if (sct_count > 0) { 3233 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx); 3234 3235 BIO_printf(bio, "---\n"); 3236 for (i = 0; i < sct_count; ++i) { 3237 SCT *sct = sk_SCT_value(scts, i); 3238 3239 BIO_printf(bio, "SCT validation status: %s\n", 3240 SCT_validation_status_string(sct)); 3241 SCT_print(sct, bio, 0, log_store); 3242 if (i < sct_count - 1) 3243 BIO_printf(bio, "\n---\n"); 3244 } 3245 BIO_printf(bio, "\n"); 3246 } 3247 } 3248 #endif 3249 3250 BIO_printf(bio, 3251 "---\nSSL handshake has read %ju bytes " 3252 "and written %ju bytes\n", 3253 BIO_number_read(SSL_get_rbio(s)), 3254 BIO_number_written(SSL_get_wbio(s))); 3255 } 3256 print_verify_detail(s, bio); 3257 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, ")); 3258 c = SSL_get_current_cipher(s); 3259 BIO_printf(bio, "%s, Cipher is %s\n", 3260 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3261 if (peer != NULL) { 3262 EVP_PKEY *pktmp; 3263 3264 pktmp = X509_get0_pubkey(peer); 3265 BIO_printf(bio, "Server public key is %d bit\n", 3266 EVP_PKEY_bits(pktmp)); 3267 } 3268 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 3269 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 3270 #ifndef OPENSSL_NO_COMP 3271 comp = SSL_get_current_compression(s); 3272 expansion = SSL_get_current_expansion(s); 3273 BIO_printf(bio, "Compression: %s\n", 3274 comp ? SSL_COMP_get_name(comp) : "NONE"); 3275 BIO_printf(bio, "Expansion: %s\n", 3276 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 3277 #endif 3278 3279 #ifdef SSL_DEBUG 3280 { 3281 /* Print out local port of connection: useful for debugging */ 3282 int sock; 3283 union BIO_sock_info_u info; 3284 3285 sock = SSL_get_fd(s); 3286 if ((info.addr = BIO_ADDR_new()) != NULL 3287 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) { 3288 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", 3289 ntohs(BIO_ADDR_rawport(info.addr))); 3290 } 3291 BIO_ADDR_free(info.addr); 3292 } 3293 #endif 3294 3295 #if !defined(OPENSSL_NO_NEXTPROTONEG) 3296 if (next_proto.status != -1) { 3297 const unsigned char *proto; 3298 unsigned int proto_len; 3299 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 3300 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 3301 BIO_write(bio, proto, proto_len); 3302 BIO_write(bio, "\n", 1); 3303 } 3304 #endif 3305 { 3306 const unsigned char *proto; 3307 unsigned int proto_len; 3308 SSL_get0_alpn_selected(s, &proto, &proto_len); 3309 if (proto_len > 0) { 3310 BIO_printf(bio, "ALPN protocol: "); 3311 BIO_write(bio, proto, proto_len); 3312 BIO_write(bio, "\n", 1); 3313 } else 3314 BIO_printf(bio, "No ALPN negotiated\n"); 3315 } 3316 3317 #ifndef OPENSSL_NO_SRTP 3318 { 3319 SRTP_PROTECTION_PROFILE *srtp_profile = 3320 SSL_get_selected_srtp_profile(s); 3321 3322 if (srtp_profile) 3323 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 3324 srtp_profile->name); 3325 } 3326 #endif 3327 3328 if (istls13) { 3329 switch (SSL_get_early_data_status(s)) { 3330 case SSL_EARLY_DATA_NOT_SENT: 3331 BIO_printf(bio, "Early data was not sent\n"); 3332 break; 3333 3334 case SSL_EARLY_DATA_REJECTED: 3335 BIO_printf(bio, "Early data was rejected\n"); 3336 break; 3337 3338 case SSL_EARLY_DATA_ACCEPTED: 3339 BIO_printf(bio, "Early data was accepted\n"); 3340 break; 3341 3342 } 3343 3344 /* 3345 * We also print the verify results when we dump session information, 3346 * but in TLSv1.3 we may not get that right away (or at all) depending 3347 * on when we get a NewSessionTicket. Therefore we print it now as well. 3348 */ 3349 verify_result = SSL_get_verify_result(s); 3350 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result, 3351 X509_verify_cert_error_string(verify_result)); 3352 } else { 3353 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */ 3354 SSL_SESSION_print(bio, SSL_get_session(s)); 3355 } 3356 3357 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) { 3358 BIO_printf(bio, "Keying material exporter:\n"); 3359 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 3360 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 3361 exportedkeymat = app_malloc(keymatexportlen, "export key"); 3362 if (!SSL_export_keying_material(s, exportedkeymat, 3363 keymatexportlen, 3364 keymatexportlabel, 3365 strlen(keymatexportlabel), 3366 NULL, 0, 0)) { 3367 BIO_printf(bio, " Error\n"); 3368 } else { 3369 BIO_printf(bio, " Keying material: "); 3370 for (i = 0; i < keymatexportlen; i++) 3371 BIO_printf(bio, "%02X", exportedkeymat[i]); 3372 BIO_printf(bio, "\n"); 3373 } 3374 OPENSSL_free(exportedkeymat); 3375 } 3376 BIO_printf(bio, "---\n"); 3377 X509_free(peer); 3378 /* flush, or debugging output gets mixed with http response */ 3379 (void)BIO_flush(bio); 3380 } 3381 3382 # ifndef OPENSSL_NO_OCSP 3383 static int ocsp_resp_cb(SSL *s, void *arg) 3384 { 3385 const unsigned char *p; 3386 int len; 3387 OCSP_RESPONSE *rsp; 3388 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 3389 BIO_puts(arg, "OCSP response: "); 3390 if (p == NULL) { 3391 BIO_puts(arg, "no response sent\n"); 3392 return 1; 3393 } 3394 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 3395 if (rsp == NULL) { 3396 BIO_puts(arg, "response parse error\n"); 3397 BIO_dump_indent(arg, (char *)p, len, 4); 3398 return 0; 3399 } 3400 BIO_puts(arg, "\n======================================\n"); 3401 OCSP_RESPONSE_print(arg, rsp, 0); 3402 BIO_puts(arg, "======================================\n"); 3403 OCSP_RESPONSE_free(rsp); 3404 return 1; 3405 } 3406 # endif 3407 3408 static int ldap_ExtendedResponse_parse(const char *buf, long rem) 3409 { 3410 const unsigned char *cur, *end; 3411 long len; 3412 int tag, xclass, inf, ret = -1; 3413 3414 cur = (const unsigned char *)buf; 3415 end = cur + rem; 3416 3417 /* 3418 * From RFC 4511: 3419 * 3420 * LDAPMessage ::= SEQUENCE { 3421 * messageID MessageID, 3422 * protocolOp CHOICE { 3423 * ... 3424 * extendedResp ExtendedResponse, 3425 * ... }, 3426 * controls [0] Controls OPTIONAL } 3427 * 3428 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE { 3429 * COMPONENTS OF LDAPResult, 3430 * responseName [10] LDAPOID OPTIONAL, 3431 * responseValue [11] OCTET STRING OPTIONAL } 3432 * 3433 * LDAPResult ::= SEQUENCE { 3434 * resultCode ENUMERATED { 3435 * success (0), 3436 * ... 3437 * other (80), 3438 * ... }, 3439 * matchedDN LDAPDN, 3440 * diagnosticMessage LDAPString, 3441 * referral [3] Referral OPTIONAL } 3442 */ 3443 3444 /* pull SEQUENCE */ 3445 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3446 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE || 3447 (rem = end - cur, len > rem)) { 3448 BIO_printf(bio_err, "Unexpected LDAP response\n"); 3449 goto end; 3450 } 3451 3452 rem = len; /* ensure that we don't overstep the SEQUENCE */ 3453 3454 /* pull MessageID */ 3455 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3456 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER || 3457 (rem = end - cur, len > rem)) { 3458 BIO_printf(bio_err, "No MessageID\n"); 3459 goto end; 3460 } 3461 3462 cur += len; /* shall we check for MessageId match or just skip? */ 3463 3464 /* pull [APPLICATION 24] */ 3465 rem = end - cur; 3466 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3467 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION || 3468 tag != 24) { 3469 BIO_printf(bio_err, "Not ExtendedResponse\n"); 3470 goto end; 3471 } 3472 3473 /* pull resultCode */ 3474 rem = end - cur; 3475 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3476 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 || 3477 (rem = end - cur, len > rem)) { 3478 BIO_printf(bio_err, "Not LDAPResult\n"); 3479 goto end; 3480 } 3481 3482 /* len should always be one, but just in case... */ 3483 for (ret = 0, inf = 0; inf < len; inf++) { 3484 ret <<= 8; 3485 ret |= cur[inf]; 3486 } 3487 /* There is more data, but we don't care... */ 3488 end: 3489 return ret; 3490 } 3491 3492 /* 3493 * Host dNS Name verifier: used for checking that the hostname is in dNS format 3494 * before setting it as SNI 3495 */ 3496 static int is_dNS_name(const char *host) 3497 { 3498 const size_t MAX_LABEL_LENGTH = 63; 3499 size_t i; 3500 int isdnsname = 0; 3501 size_t length = strlen(host); 3502 size_t label_length = 0; 3503 int all_numeric = 1; 3504 3505 /* 3506 * Deviation from strict DNS name syntax, also check names with '_' 3507 * Check DNS name syntax, any '-' or '.' must be internal, 3508 * and on either side of each '.' we can't have a '-' or '.'. 3509 * 3510 * If the name has just one label, we don't consider it a DNS name. 3511 */ 3512 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) { 3513 char c = host[i]; 3514 3515 if ((c >= 'a' && c <= 'z') 3516 || (c >= 'A' && c <= 'Z') 3517 || c == '_') { 3518 label_length += 1; 3519 all_numeric = 0; 3520 continue; 3521 } 3522 3523 if (c >= '0' && c <= '9') { 3524 label_length += 1; 3525 continue; 3526 } 3527 3528 /* Dot and hyphen cannot be first or last. */ 3529 if (i > 0 && i < length - 1) { 3530 if (c == '-') { 3531 label_length += 1; 3532 continue; 3533 } 3534 /* 3535 * Next to a dot the preceding and following characters must not be 3536 * another dot or a hyphen. Otherwise, record that the name is 3537 * plausible, since it has two or more labels. 3538 */ 3539 if (c == '.' 3540 && host[i + 1] != '.' 3541 && host[i - 1] != '-' 3542 && host[i + 1] != '-') { 3543 label_length = 0; 3544 isdnsname = 1; 3545 continue; 3546 } 3547 } 3548 isdnsname = 0; 3549 break; 3550 } 3551 3552 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */ 3553 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH); 3554 3555 return isdnsname; 3556 } 3557 #endif /* OPENSSL_NO_SOCK */ 3558
Indexes created Sat Feb 28 05:31:39 UTC 2026