1/* 2 * Copyright 1995-2021 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 29typedef 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 62static char *prog; 63static int c_debug = 0; 64static int c_showcerts = 0; 65static char *keymatexportlabel = NULL; 66static int keymatexportlen = 20; 67static BIO *bio_c_out = NULL; 68static int c_quiet = 0; 69static char *sess_out = NULL; 70static SSL_SESSION *psksess = NULL; 71 72static void print_stuff(BIO *berr, SSL *con, int full); 73#ifndef OPENSSL_NO_OCSP 74static int ocsp_resp_cb(SSL *s, void *arg); 75#endif 76static int ldap_ExtendedResponse_parse(const char *buf, long rem); 77static int is_dNS_name(const char *host); 78 79static int saved_errno; 80 81static void save_errno(void) 82{ 83 saved_errno = errno; 84 errno = 0; 85} 86 87static int restore_errno(void) 88{ 89 int ret = errno; 90 errno = saved_errno; 91 return ret; 92} 93 94static 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 */ 116static char *psk_identity = "Client_identity"; 117 118#ifndef OPENSSL_NO_PSK 119static 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 178const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 }; 179const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 }; 180 181static 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 */ 244typedef struct tlsextctx_st { 245 BIO *biodebug; 246 int ack; 247} tlsextctx; 248 249static 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 */ 264typedef 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 275static 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 313static 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 351static 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 */ 374typedef struct tlsextnextprotoctx_st { 375 unsigned char *data; 376 size_t len; 377 int status; 378} tlsextnextprotoctx; 379 380static tlsextnextprotoctx next_proto; 381 382static 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 407static 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 */ 432static 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 */ 475static 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 499struct tlsa_field { 500 void *var; 501 const char *name; 502 ossl_ssize_t (*parser)(const char **, void *); 503}; 504 505static 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 551static 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 565typedef 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 604const 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 796typedef 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 815static 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|. */ 842static 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 850static 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 882int 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 char *sname_alloc = NULL; 942 int noservername = 0; 943 const char *alpn_in = NULL; 944 tlsextctx tlsextcbp = { NULL, 0 }; 945 const char *ssl_config = NULL; 946#define MAX_SI_TYPES 100 947 unsigned short serverinfo_types[MAX_SI_TYPES]; 948 int serverinfo_count = 0, start = 0, len; 949#ifndef OPENSSL_NO_NEXTPROTONEG 950 const char *next_proto_neg_in = NULL; 951#endif 952#ifndef OPENSSL_NO_SRP 953 char *srppass = NULL; 954 int srp_lateuser = 0; 955 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; 956#endif 957#ifndef OPENSSL_NO_SRTP 958 char *srtp_profiles = NULL; 959#endif 960#ifndef OPENSSL_NO_CT 961 char *ctlog_file = NULL; 962 int ct_validation = 0; 963#endif 964 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0; 965 int async = 0; 966 unsigned int max_send_fragment = 0; 967 unsigned int split_send_fragment = 0, max_pipelines = 0; 968 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown; 969 int count4or6 = 0; 970 uint8_t maxfraglen = 0; 971 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0; 972 int c_tlsextdebug = 0; 973#ifndef OPENSSL_NO_OCSP 974 int c_status_req = 0; 975#endif 976 BIO *bio_c_msg = NULL; 977 const char *keylog_file = NULL, *early_data_file = NULL; 978#ifndef OPENSSL_NO_DTLS 979 int isdtls = 0; 980#endif 981 char *psksessf = NULL; 982 int enable_pha = 0; 983#ifndef OPENSSL_NO_SCTP 984 int sctp_label_bug = 0; 985#endif 986 987 FD_ZERO(&readfds); 988 FD_ZERO(&writefds); 989/* Known false-positive of MemorySanitizer. */ 990#if defined(__has_feature) 991# if __has_feature(memory_sanitizer) 992 __msan_unpoison(&readfds, sizeof(readfds)); 993 __msan_unpoison(&writefds, sizeof(writefds)); 994# endif 995#endif 996 997 prog = opt_progname(argv[0]); 998 c_quiet = 0; 999 c_debug = 0; 1000 c_showcerts = 0; 1001 c_nbio = 0; 1002 vpm = X509_VERIFY_PARAM_new(); 1003 cctx = SSL_CONF_CTX_new(); 1004 1005 if (vpm == NULL || cctx == NULL) { 1006 BIO_printf(bio_err, "%s: out of memory\n", prog); 1007 goto end; 1008 } 1009 1010 cbuf = app_malloc(BUFSIZZ, "cbuf"); 1011 sbuf = app_malloc(BUFSIZZ, "sbuf"); 1012 mbuf = app_malloc(BUFSIZZ, "mbuf"); 1013 1014 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE); 1015 1016 prog = opt_init(argc, argv, s_client_options); 1017 while ((o = opt_next()) != OPT_EOF) { 1018 /* Check for intermixing flags. */ 1019 if (connect_type == use_unix && IS_INET_FLAG(o)) { 1020 BIO_printf(bio_err, 1021 "%s: Intermixed protocol flags (unix and internet domains)\n", 1022 prog); 1023 goto end; 1024 } 1025 if (connect_type == use_inet && IS_UNIX_FLAG(o)) { 1026 BIO_printf(bio_err, 1027 "%s: Intermixed protocol flags (internet and unix domains)\n", 1028 prog); 1029 goto end; 1030 } 1031 1032 if (IS_PROT_FLAG(o) && ++prot_opt > 1) { 1033 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); 1034 goto end; 1035 } 1036 if (IS_NO_PROT_FLAG(o)) 1037 no_prot_opt++; 1038 if (prot_opt == 1 && no_prot_opt) { 1039 BIO_printf(bio_err, 1040 "Cannot supply both a protocol flag and '-no_<prot>'\n"); 1041 goto end; 1042 } 1043 1044 switch (o) { 1045 case OPT_EOF: 1046 case OPT_ERR: 1047 opthelp: 1048 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 1049 goto end; 1050 case OPT_HELP: 1051 opt_help(s_client_options); 1052 ret = 0; 1053 goto end; 1054 case OPT_4: 1055 connect_type = use_inet; 1056 socket_family = AF_INET; 1057 count4or6++; 1058 break; 1059#ifdef AF_INET6 1060 case OPT_6: 1061 connect_type = use_inet; 1062 socket_family = AF_INET6; 1063 count4or6++; 1064 break; 1065#endif 1066 case OPT_HOST: 1067 connect_type = use_inet; 1068 freeandcopy(&host, opt_arg()); 1069 break; 1070 case OPT_PORT: 1071 connect_type = use_inet; 1072 freeandcopy(&port, opt_arg()); 1073 break; 1074 case OPT_CONNECT: 1075 connect_type = use_inet; 1076 freeandcopy(&connectstr, opt_arg()); 1077 break; 1078 case OPT_BIND: 1079 freeandcopy(&bindstr, opt_arg()); 1080 break; 1081 case OPT_PROXY: 1082 proxystr = opt_arg(); 1083 starttls_proto = PROTO_CONNECT; 1084 break; 1085#ifdef AF_UNIX 1086 case OPT_UNIX: 1087 connect_type = use_unix; 1088 socket_family = AF_UNIX; 1089 freeandcopy(&host, opt_arg()); 1090 break; 1091#endif 1092 case OPT_XMPPHOST: 1093 /* fall through, since this is an alias */ 1094 case OPT_PROTOHOST: 1095 protohost = opt_arg(); 1096 break; 1097 case OPT_VERIFY: 1098 verify = SSL_VERIFY_PEER; 1099 verify_args.depth = atoi(opt_arg()); 1100 if (!c_quiet) 1101 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth); 1102 break; 1103 case OPT_CERT: 1104 cert_file = opt_arg(); 1105 break; 1106 case OPT_NAMEOPT: 1107 if (!set_nameopt(opt_arg())) 1108 goto end; 1109 break; 1110 case OPT_CRL: 1111 crl_file = opt_arg(); 1112 break; 1113 case OPT_CRL_DOWNLOAD: 1114 crl_download = 1; 1115 break; 1116 case OPT_SESS_OUT: 1117 sess_out = opt_arg(); 1118 break; 1119 case OPT_SESS_IN: 1120 sess_in = opt_arg(); 1121 break; 1122 case OPT_CERTFORM: 1123 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format)) 1124 goto opthelp; 1125 break; 1126 case OPT_CRLFORM: 1127 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) 1128 goto opthelp; 1129 break; 1130 case OPT_VERIFY_RET_ERROR: 1131 verify = SSL_VERIFY_PEER; 1132 verify_args.return_error = 1; 1133 break; 1134 case OPT_VERIFY_QUIET: 1135 verify_args.quiet = 1; 1136 break; 1137 case OPT_BRIEF: 1138 c_brief = verify_args.quiet = c_quiet = 1; 1139 break; 1140 case OPT_S_CASES: 1141 if (ssl_args == NULL) 1142 ssl_args = sk_OPENSSL_STRING_new_null(); 1143 if (ssl_args == NULL 1144 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag()) 1145 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) { 1146 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1147 goto end; 1148 } 1149 break; 1150 case OPT_V_CASES: 1151 if (!opt_verify(o, vpm)) 1152 goto end; 1153 vpmtouched++; 1154 break; 1155 case OPT_X_CASES: 1156 if (!args_excert(o, &exc)) 1157 goto end; 1158 break; 1159 case OPT_PREXIT: 1160 prexit = 1; 1161 break; 1162 case OPT_CRLF: 1163 crlf = 1; 1164 break; 1165 case OPT_QUIET: 1166 c_quiet = c_ign_eof = 1; 1167 break; 1168 case OPT_NBIO: 1169 c_nbio = 1; 1170 break; 1171 case OPT_NOCMDS: 1172 cmdletters = 0; 1173 break; 1174 case OPT_ENGINE: 1175 e = setup_engine(opt_arg(), 1); 1176 break; 1177 case OPT_SSL_CLIENT_ENGINE: 1178#ifndef OPENSSL_NO_ENGINE 1179 ssl_client_engine = ENGINE_by_id(opt_arg()); 1180 if (ssl_client_engine == NULL) { 1181 BIO_printf(bio_err, "Error getting client auth engine\n"); 1182 goto opthelp; 1183 } 1184#endif 1185 break; 1186 case OPT_R_CASES: 1187 if (!opt_rand(o)) 1188 goto end; 1189 break; 1190 case OPT_IGN_EOF: 1191 c_ign_eof = 1; 1192 break; 1193 case OPT_NO_IGN_EOF: 1194 c_ign_eof = 0; 1195 break; 1196 case OPT_DEBUG: 1197 c_debug = 1; 1198 break; 1199 case OPT_TLSEXTDEBUG: 1200 c_tlsextdebug = 1; 1201 break; 1202 case OPT_STATUS: 1203#ifndef OPENSSL_NO_OCSP 1204 c_status_req = 1; 1205#endif 1206 break; 1207 case OPT_WDEBUG: 1208#ifdef WATT32 1209 dbug_init(); 1210#endif 1211 break; 1212 case OPT_MSG: 1213 c_msg = 1; 1214 break; 1215 case OPT_MSGFILE: 1216 bio_c_msg = BIO_new_file(opt_arg(), "w"); 1217 break; 1218 case OPT_TRACE: 1219#ifndef OPENSSL_NO_SSL_TRACE 1220 c_msg = 2; 1221#endif 1222 break; 1223 case OPT_SECURITY_DEBUG: 1224 sdebug = 1; 1225 break; 1226 case OPT_SECURITY_DEBUG_VERBOSE: 1227 sdebug = 2; 1228 break; 1229 case OPT_SHOWCERTS: 1230 c_showcerts = 1; 1231 break; 1232 case OPT_NBIO_TEST: 1233 nbio_test = 1; 1234 break; 1235 case OPT_STATE: 1236 state = 1; 1237 break; 1238 case OPT_PSK_IDENTITY: 1239 psk_identity = opt_arg(); 1240 break; 1241 case OPT_PSK: 1242 for (p = psk_key = opt_arg(); *p; p++) { 1243 if (isxdigit(_UC(*p))) 1244 continue; 1245 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key); 1246 goto end; 1247 } 1248 break; 1249 case OPT_PSK_SESS: 1250 psksessf = opt_arg(); 1251 break; 1252#ifndef OPENSSL_NO_SRP 1253 case OPT_SRPUSER: 1254 srp_arg.srplogin = opt_arg(); 1255 if (min_version < TLS1_VERSION) 1256 min_version = TLS1_VERSION; 1257 break; 1258 case OPT_SRPPASS: 1259 srppass = opt_arg(); 1260 if (min_version < TLS1_VERSION) 1261 min_version = TLS1_VERSION; 1262 break; 1263 case OPT_SRP_STRENGTH: 1264 srp_arg.strength = atoi(opt_arg()); 1265 BIO_printf(bio_err, "SRP minimal length for N is %d\n", 1266 srp_arg.strength); 1267 if (min_version < TLS1_VERSION) 1268 min_version = TLS1_VERSION; 1269 break; 1270 case OPT_SRP_LATEUSER: 1271 srp_lateuser = 1; 1272 if (min_version < TLS1_VERSION) 1273 min_version = TLS1_VERSION; 1274 break; 1275 case OPT_SRP_MOREGROUPS: 1276 srp_arg.amp = 1; 1277 if (min_version < TLS1_VERSION) 1278 min_version = TLS1_VERSION; 1279 break; 1280#endif 1281 case OPT_SSL_CONFIG: 1282 ssl_config = opt_arg(); 1283 break; 1284 case OPT_SSL3: 1285 min_version = SSL3_VERSION; 1286 max_version = SSL3_VERSION; 1287 socket_type = SOCK_STREAM; 1288#ifndef OPENSSL_NO_DTLS 1289 isdtls = 0; 1290#endif 1291 break; 1292 case OPT_TLS1_3: 1293 min_version = TLS1_3_VERSION; 1294 max_version = TLS1_3_VERSION; 1295 socket_type = SOCK_STREAM; 1296#ifndef OPENSSL_NO_DTLS 1297 isdtls = 0; 1298#endif 1299 break; 1300 case OPT_TLS1_2: 1301 min_version = TLS1_2_VERSION; 1302 max_version = TLS1_2_VERSION; 1303 socket_type = SOCK_STREAM; 1304#ifndef OPENSSL_NO_DTLS 1305 isdtls = 0; 1306#endif 1307 break; 1308 case OPT_TLS1_1: 1309 min_version = TLS1_1_VERSION; 1310 max_version = TLS1_1_VERSION; 1311 socket_type = SOCK_STREAM; 1312#ifndef OPENSSL_NO_DTLS 1313 isdtls = 0; 1314#endif 1315 break; 1316 case OPT_TLS1: 1317 min_version = TLS1_VERSION; 1318 max_version = TLS1_VERSION; 1319 socket_type = SOCK_STREAM; 1320#ifndef OPENSSL_NO_DTLS 1321 isdtls = 0; 1322#endif 1323 break; 1324 case OPT_DTLS: 1325#ifndef OPENSSL_NO_DTLS 1326 meth = DTLS_client_method(); 1327 socket_type = SOCK_DGRAM; 1328 isdtls = 1; 1329#endif 1330 break; 1331 case OPT_DTLS1: 1332#ifndef OPENSSL_NO_DTLS1 1333 meth = DTLS_client_method(); 1334 min_version = DTLS1_VERSION; 1335 max_version = DTLS1_VERSION; 1336 socket_type = SOCK_DGRAM; 1337 isdtls = 1; 1338#endif 1339 break; 1340 case OPT_DTLS1_2: 1341#ifndef OPENSSL_NO_DTLS1_2 1342 meth = DTLS_client_method(); 1343 min_version = DTLS1_2_VERSION; 1344 max_version = DTLS1_2_VERSION; 1345 socket_type = SOCK_DGRAM; 1346 isdtls = 1; 1347#endif 1348 break; 1349 case OPT_SCTP: 1350#ifndef OPENSSL_NO_SCTP 1351 protocol = IPPROTO_SCTP; 1352#endif 1353 break; 1354 case OPT_SCTP_LABEL_BUG: 1355#ifndef OPENSSL_NO_SCTP 1356 sctp_label_bug = 1; 1357#endif 1358 break; 1359 case OPT_TIMEOUT: 1360#ifndef OPENSSL_NO_DTLS 1361 enable_timeouts = 1; 1362#endif 1363 break; 1364 case OPT_MTU: 1365#ifndef OPENSSL_NO_DTLS 1366 socket_mtu = atol(opt_arg()); 1367#endif 1368 break; 1369 case OPT_FALLBACKSCSV: 1370 fallback_scsv = 1; 1371 break; 1372 case OPT_KEYFORM: 1373 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format)) 1374 goto opthelp; 1375 break; 1376 case OPT_PASS: 1377 passarg = opt_arg(); 1378 break; 1379 case OPT_CERT_CHAIN: 1380 chain_file = opt_arg(); 1381 break; 1382 case OPT_KEY: 1383 key_file = opt_arg(); 1384 break; 1385 case OPT_RECONNECT: 1386 reconnect = 5; 1387 break; 1388 case OPT_CAPATH: 1389 CApath = opt_arg(); 1390 break; 1391 case OPT_NOCAPATH: 1392 noCApath = 1; 1393 break; 1394 case OPT_CHAINCAPATH: 1395 chCApath = opt_arg(); 1396 break; 1397 case OPT_VERIFYCAPATH: 1398 vfyCApath = opt_arg(); 1399 break; 1400 case OPT_BUILD_CHAIN: 1401 build_chain = 1; 1402 break; 1403 case OPT_REQCAFILE: 1404 ReqCAfile = opt_arg(); 1405 break; 1406 case OPT_CAFILE: 1407 CAfile = opt_arg(); 1408 break; 1409 case OPT_NOCAFILE: 1410 noCAfile = 1; 1411 break; 1412#ifndef OPENSSL_NO_CT 1413 case OPT_NOCT: 1414 ct_validation = 0; 1415 break; 1416 case OPT_CT: 1417 ct_validation = 1; 1418 break; 1419 case OPT_CTLOG_FILE: 1420 ctlog_file = opt_arg(); 1421 break; 1422#endif 1423 case OPT_CHAINCAFILE: 1424 chCAfile = opt_arg(); 1425 break; 1426 case OPT_VERIFYCAFILE: 1427 vfyCAfile = opt_arg(); 1428 break; 1429 case OPT_DANE_TLSA_DOMAIN: 1430 dane_tlsa_domain = opt_arg(); 1431 break; 1432 case OPT_DANE_TLSA_RRDATA: 1433 if (dane_tlsa_rrset == NULL) 1434 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null(); 1435 if (dane_tlsa_rrset == NULL || 1436 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) { 1437 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); 1438 goto end; 1439 } 1440 break; 1441 case OPT_DANE_EE_NO_NAME: 1442 dane_ee_no_name = 1; 1443 break; 1444 case OPT_NEXTPROTONEG: 1445#ifndef OPENSSL_NO_NEXTPROTONEG 1446 next_proto_neg_in = opt_arg(); 1447#endif 1448 break; 1449 case OPT_ALPN: 1450 alpn_in = opt_arg(); 1451 break; 1452 case OPT_SERVERINFO: 1453 p = opt_arg(); 1454 len = strlen(p); 1455 for (start = 0, i = 0; i <= len; ++i) { 1456 if (i == len || p[i] == ',') { 1457 serverinfo_types[serverinfo_count] = atoi(p + start); 1458 if (++serverinfo_count == MAX_SI_TYPES) 1459 break; 1460 start = i + 1; 1461 } 1462 } 1463 break; 1464 case OPT_STARTTLS: 1465 if (!opt_pair(opt_arg(), services, &starttls_proto)) 1466 goto end; 1467 break; 1468 case OPT_SERVERNAME: 1469 servername = opt_arg(); 1470 break; 1471 case OPT_NOSERVERNAME: 1472 noservername = 1; 1473 break; 1474 case OPT_USE_SRTP: 1475#ifndef OPENSSL_NO_SRTP 1476 srtp_profiles = opt_arg(); 1477#endif 1478 break; 1479 case OPT_KEYMATEXPORT: 1480 keymatexportlabel = opt_arg(); 1481 break; 1482 case OPT_KEYMATEXPORTLEN: 1483 keymatexportlen = atoi(opt_arg()); 1484 break; 1485 case OPT_ASYNC: 1486 async = 1; 1487 break; 1488 case OPT_MAXFRAGLEN: 1489 len = atoi(opt_arg()); 1490 switch (len) { 1491 case 512: 1492 maxfraglen = TLSEXT_max_fragment_length_512; 1493 break; 1494 case 1024: 1495 maxfraglen = TLSEXT_max_fragment_length_1024; 1496 break; 1497 case 2048: 1498 maxfraglen = TLSEXT_max_fragment_length_2048; 1499 break; 1500 case 4096: 1501 maxfraglen = TLSEXT_max_fragment_length_4096; 1502 break; 1503 default: 1504 BIO_printf(bio_err, 1505 "%s: Max Fragment Len %u is out of permitted values", 1506 prog, len); 1507 goto opthelp; 1508 } 1509 break; 1510 case OPT_MAX_SEND_FRAG: 1511 max_send_fragment = atoi(opt_arg()); 1512 break; 1513 case OPT_SPLIT_SEND_FRAG: 1514 split_send_fragment = atoi(opt_arg()); 1515 break; 1516 case OPT_MAX_PIPELINES: 1517 max_pipelines = atoi(opt_arg()); 1518 break; 1519 case OPT_READ_BUF: 1520 read_buf_len = atoi(opt_arg()); 1521 break; 1522 case OPT_KEYLOG_FILE: 1523 keylog_file = opt_arg(); 1524 break; 1525 case OPT_EARLY_DATA: 1526 early_data_file = opt_arg(); 1527 break; 1528 case OPT_ENABLE_PHA: 1529 enable_pha = 1; 1530 break; 1531 } 1532 } 1533 if (count4or6 >= 2) { 1534 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog); 1535 goto opthelp; 1536 } 1537 if (noservername) { 1538 if (servername != NULL) { 1539 BIO_printf(bio_err, 1540 "%s: Can't use -servername and -noservername together\n", 1541 prog); 1542 goto opthelp; 1543 } 1544 if (dane_tlsa_domain != NULL) { 1545 BIO_printf(bio_err, 1546 "%s: Can't use -dane_tlsa_domain and -noservername together\n", 1547 prog); 1548 goto opthelp; 1549 } 1550 } 1551 argc = opt_num_rest(); 1552 if (argc == 1) { 1553 /* If there's a positional argument, it's the equivalent of 1554 * OPT_CONNECT. 1555 * Don't allow -connect and a separate argument. 1556 */ 1557 if (connectstr != NULL) { 1558 BIO_printf(bio_err, 1559 "%s: must not provide both -connect option and target parameter\n", 1560 prog); 1561 goto opthelp; 1562 } 1563 connect_type = use_inet; 1564 freeandcopy(&connectstr, *opt_rest()); 1565 } else if (argc != 0) { 1566 goto opthelp; 1567 } 1568 1569#ifndef OPENSSL_NO_NEXTPROTONEG 1570 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) { 1571 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n"); 1572 goto opthelp; 1573 } 1574#endif 1575 if (proxystr != NULL) { 1576 int res; 1577 char *tmp_host = host, *tmp_port = port; 1578 if (connectstr == NULL) { 1579 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog); 1580 goto opthelp; 1581 } 1582 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST); 1583 if (tmp_host != host) 1584 OPENSSL_free(tmp_host); 1585 if (tmp_port != port) 1586 OPENSSL_free(tmp_port); 1587 if (!res) { 1588 BIO_printf(bio_err, 1589 "%s: -proxy argument malformed or ambiguous\n", prog); 1590 goto end; 1591 } 1592 if (servername == NULL && !noservername) { 1593 res = BIO_parse_hostserv(connectstr, &sname_alloc, NULL, BIO_PARSE_PRIO_HOST); 1594 if (!res) { 1595 BIO_printf(bio_err, 1596 "%s: -connect argument malformed or ambiguous\n", prog); 1597 goto end; 1598 } 1599 servername = sname_alloc; 1600 } 1601 } else { 1602 int res = 1; 1603 char *tmp_host = host, *tmp_port = port; 1604 if (connectstr != NULL) 1605 res = BIO_parse_hostserv(connectstr, &host, &port, 1606 BIO_PARSE_PRIO_HOST); 1607 if (tmp_host != host) 1608 OPENSSL_free(tmp_host); 1609 if (tmp_port != port) 1610 OPENSSL_free(tmp_port); 1611 if (!res) { 1612 BIO_printf(bio_err, 1613 "%s: -connect argument or target parameter malformed or ambiguous\n", 1614 prog); 1615 goto end; 1616 } 1617 } 1618 1619 if (bindstr != NULL) { 1620 int res; 1621 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport, 1622 BIO_PARSE_PRIO_HOST); 1623 if (!res) { 1624 BIO_printf(bio_err, 1625 "%s: -bind argument parameter malformed or ambiguous\n", 1626 prog); 1627 goto end; 1628 } 1629 } 1630 1631#ifdef AF_UNIX 1632 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) { 1633 BIO_printf(bio_err, 1634 "Can't use unix sockets and datagrams together\n"); 1635 goto end; 1636 } 1637#endif 1638 1639#ifndef OPENSSL_NO_SCTP 1640 if (protocol == IPPROTO_SCTP) { 1641 if (socket_type != SOCK_DGRAM) { 1642 BIO_printf(bio_err, "Can't use -sctp without DTLS\n"); 1643 goto end; 1644 } 1645 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */ 1646 socket_type = SOCK_STREAM; 1647 } 1648#endif 1649 1650#if !defined(OPENSSL_NO_NEXTPROTONEG) 1651 next_proto.status = -1; 1652 if (next_proto_neg_in) { 1653 next_proto.data = 1654 next_protos_parse(&next_proto.len, next_proto_neg_in); 1655 if (next_proto.data == NULL) { 1656 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1657 goto end; 1658 } 1659 } else 1660 next_proto.data = NULL; 1661#endif 1662 1663 if (!app_passwd(passarg, NULL, &pass, NULL)) { 1664 BIO_printf(bio_err, "Error getting password\n"); 1665 goto end; 1666 } 1667 1668 if (key_file == NULL) 1669 key_file = cert_file; 1670 1671 if (key_file != NULL) { 1672 key = load_key(key_file, key_format, 0, pass, e, 1673 "client certificate private key file"); 1674 if (key == NULL) { 1675 ERR_print_errors(bio_err); 1676 goto end; 1677 } 1678 } 1679 1680 if (cert_file != NULL) { 1681 cert = load_cert(cert_file, cert_format, "client certificate file"); 1682 if (cert == NULL) { 1683 ERR_print_errors(bio_err); 1684 goto end; 1685 } 1686 } 1687 1688 if (chain_file != NULL) { 1689 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL, 1690 "client certificate chain")) 1691 goto end; 1692 } 1693 1694 if (crl_file != NULL) { 1695 X509_CRL *crl; 1696 crl = load_crl(crl_file, crl_format); 1697 if (crl == NULL) { 1698 BIO_puts(bio_err, "Error loading CRL\n"); 1699 ERR_print_errors(bio_err); 1700 goto end; 1701 } 1702 crls = sk_X509_CRL_new_null(); 1703 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { 1704 BIO_puts(bio_err, "Error adding CRL\n"); 1705 ERR_print_errors(bio_err); 1706 X509_CRL_free(crl); 1707 goto end; 1708 } 1709 } 1710 1711 if (!load_excert(&exc)) 1712 goto end; 1713 1714 if (bio_c_out == NULL) { 1715 if (c_quiet && !c_debug) { 1716 bio_c_out = BIO_new(BIO_s_null()); 1717 if (c_msg && bio_c_msg == NULL) 1718 bio_c_msg = dup_bio_out(FORMAT_TEXT); 1719 } else if (bio_c_out == NULL) 1720 bio_c_out = dup_bio_out(FORMAT_TEXT); 1721 } 1722#ifndef OPENSSL_NO_SRP 1723 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) { 1724 BIO_printf(bio_err, "Error getting password\n"); 1725 goto end; 1726 } 1727#endif 1728 1729 ctx = SSL_CTX_new(meth); 1730 if (ctx == NULL) { 1731 ERR_print_errors(bio_err); 1732 goto end; 1733 } 1734 1735 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); 1736 1737 if (sdebug) 1738 ssl_ctx_security_debug(ctx, sdebug); 1739 1740 if (!config_ctx(cctx, ssl_args, ctx)) 1741 goto end; 1742 1743 if (ssl_config != NULL) { 1744 if (SSL_CTX_config(ctx, ssl_config) == 0) { 1745 BIO_printf(bio_err, "Error using configuration \"%s\"\n", 1746 ssl_config); 1747 ERR_print_errors(bio_err); 1748 goto end; 1749 } 1750 } 1751 1752#ifndef OPENSSL_NO_SCTP 1753 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1) 1754 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG); 1755#endif 1756 1757 if (min_version != 0 1758 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0) 1759 goto end; 1760 if (max_version != 0 1761 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0) 1762 goto end; 1763 1764 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { 1765 BIO_printf(bio_err, "Error setting verify params\n"); 1766 ERR_print_errors(bio_err); 1767 goto end; 1768 } 1769 1770 if (async) { 1771 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); 1772 } 1773 1774 if (max_send_fragment > 0 1775 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) { 1776 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n", 1777 prog, max_send_fragment); 1778 goto end; 1779 } 1780 1781 if (split_send_fragment > 0 1782 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) { 1783 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n", 1784 prog, split_send_fragment); 1785 goto end; 1786 } 1787 1788 if (max_pipelines > 0 1789 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) { 1790 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n", 1791 prog, max_pipelines); 1792 goto end; 1793 } 1794 1795 if (read_buf_len > 0) { 1796 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); 1797 } 1798 1799 if (maxfraglen > 0 1800 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) { 1801 BIO_printf(bio_err, 1802 "%s: Max Fragment Length code %u is out of permitted values" 1803 "\n", prog, maxfraglen); 1804 goto end; 1805 } 1806 1807 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, 1808 crls, crl_download)) { 1809 BIO_printf(bio_err, "Error loading store locations\n"); 1810 ERR_print_errors(bio_err); 1811 goto end; 1812 } 1813 if (ReqCAfile != NULL) { 1814 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null(); 1815 1816 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) { 1817 sk_X509_NAME_pop_free(nm, X509_NAME_free); 1818 BIO_printf(bio_err, "Error loading CA names\n"); 1819 ERR_print_errors(bio_err); 1820 goto end; 1821 } 1822 SSL_CTX_set0_CA_list(ctx, nm); 1823 } 1824#ifndef OPENSSL_NO_ENGINE 1825 if (ssl_client_engine) { 1826 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { 1827 BIO_puts(bio_err, "Error setting client auth engine\n"); 1828 ERR_print_errors(bio_err); 1829 ENGINE_free(ssl_client_engine); 1830 goto end; 1831 } 1832 ENGINE_free(ssl_client_engine); 1833 } 1834#endif 1835 1836#ifndef OPENSSL_NO_PSK 1837 if (psk_key != NULL) { 1838 if (c_debug) 1839 BIO_printf(bio_c_out, "PSK key given, setting client callback\n"); 1840 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1841 } 1842#endif 1843 if (psksessf != NULL) { 1844 BIO *stmp = BIO_new_file(psksessf, "r"); 1845 1846 if (stmp == NULL) { 1847 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf); 1848 ERR_print_errors(bio_err); 1849 goto end; 1850 } 1851 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1852 BIO_free(stmp); 1853 if (psksess == NULL) { 1854 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf); 1855 ERR_print_errors(bio_err); 1856 goto end; 1857 } 1858 } 1859 if (psk_key != NULL || psksess != NULL) 1860 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb); 1861 1862#ifndef OPENSSL_NO_SRTP 1863 if (srtp_profiles != NULL) { 1864 /* Returns 0 on success! */ 1865 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { 1866 BIO_printf(bio_err, "Error setting SRTP profile\n"); 1867 ERR_print_errors(bio_err); 1868 goto end; 1869 } 1870 } 1871#endif 1872 1873 if (exc != NULL) 1874 ssl_ctx_set_excert(ctx, exc); 1875 1876#if !defined(OPENSSL_NO_NEXTPROTONEG) 1877 if (next_proto.data != NULL) 1878 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1879#endif 1880 if (alpn_in) { 1881 size_t alpn_len; 1882 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); 1883 1884 if (alpn == NULL) { 1885 BIO_printf(bio_err, "Error parsing -alpn argument\n"); 1886 goto end; 1887 } 1888 /* Returns 0 on success! */ 1889 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) { 1890 BIO_printf(bio_err, "Error setting ALPN\n"); 1891 goto end; 1892 } 1893 OPENSSL_free(alpn); 1894 } 1895 1896 for (i = 0; i < serverinfo_count; i++) { 1897 if (!SSL_CTX_add_client_custom_ext(ctx, 1898 serverinfo_types[i], 1899 NULL, NULL, NULL, 1900 serverinfo_cli_parse_cb, NULL)) { 1901 BIO_printf(bio_err, 1902 "Warning: Unable to add custom extension %u, skipping\n", 1903 serverinfo_types[i]); 1904 } 1905 } 1906 1907 if (state) 1908 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1909 1910#ifndef OPENSSL_NO_CT 1911 /* Enable SCT processing, without early connection termination */ 1912 if (ct_validation && 1913 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) { 1914 ERR_print_errors(bio_err); 1915 goto end; 1916 } 1917 1918 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) { 1919 if (ct_validation) { 1920 ERR_print_errors(bio_err); 1921 goto end; 1922 } 1923 1924 /* 1925 * If CT validation is not enabled, the log list isn't needed so don't 1926 * show errors or abort. We try to load it regardless because then we 1927 * can show the names of the logs any SCTs came from (SCTs may be seen 1928 * even with validation disabled). 1929 */ 1930 ERR_clear_error(); 1931 } 1932#endif 1933 1934 SSL_CTX_set_verify(ctx, verify, verify_callback); 1935 1936 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) { 1937 ERR_print_errors(bio_err); 1938 goto end; 1939 } 1940 1941 ssl_ctx_add_crls(ctx, crls, crl_download); 1942 1943 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain)) 1944 goto end; 1945 1946 if (!noservername) { 1947 tlsextcbp.biodebug = bio_err; 1948 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1949 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1950 } 1951# ifndef OPENSSL_NO_SRP 1952 if (srp_arg.srplogin) { 1953 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { 1954 BIO_printf(bio_err, "Unable to set SRP username\n"); 1955 goto end; 1956 } 1957 srp_arg.msg = c_msg; 1958 srp_arg.debug = c_debug; 1959 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); 1960 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1961 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1962 if (c_msg || c_debug || srp_arg.amp == 0) 1963 SSL_CTX_set_srp_verify_param_callback(ctx, 1964 ssl_srp_verify_param_cb); 1965 } 1966# endif 1967 1968 if (dane_tlsa_domain != NULL) { 1969 if (SSL_CTX_dane_enable(ctx) <= 0) { 1970 BIO_printf(bio_err, 1971 "%s: Error enabling DANE TLSA authentication.\n", 1972 prog); 1973 ERR_print_errors(bio_err); 1974 goto end; 1975 } 1976 } 1977 1978 /* 1979 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can 1980 * come at any time. Therefore we use a callback to write out the session 1981 * when we know about it. This approach works for < TLSv1.3 as well. 1982 */ 1983 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT 1984 | SSL_SESS_CACHE_NO_INTERNAL_STORE); 1985 SSL_CTX_sess_set_new_cb(ctx, new_session_cb); 1986 1987 if (set_keylog_file(ctx, keylog_file)) 1988 goto end; 1989 1990 con = SSL_new(ctx); 1991 if (con == NULL) 1992 goto end; 1993 1994 if (enable_pha) 1995 SSL_set_post_handshake_auth(con, 1); 1996 1997 if (sess_in != NULL) { 1998 SSL_SESSION *sess; 1999 BIO *stmp = BIO_new_file(sess_in, "r"); 2000 if (stmp == NULL) { 2001 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 2002 ERR_print_errors(bio_err); 2003 goto end; 2004 } 2005 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 2006 BIO_free(stmp); 2007 if (sess == NULL) { 2008 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 2009 ERR_print_errors(bio_err); 2010 goto end; 2011 } 2012 if (!SSL_set_session(con, sess)) { 2013 BIO_printf(bio_err, "Can't set session\n"); 2014 ERR_print_errors(bio_err); 2015 goto end; 2016 } 2017 2018 SSL_SESSION_free(sess); 2019 } 2020 2021 if (fallback_scsv) 2022 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 2023 2024 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) { 2025 if (servername == NULL) { 2026 if(host == NULL || is_dNS_name(host)) 2027 servername = (host == NULL) ? "localhost" : host; 2028 } 2029 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) { 2030 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 2031 ERR_print_errors(bio_err); 2032 goto end; 2033 } 2034 } 2035 2036 if (dane_tlsa_domain != NULL) { 2037 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) { 2038 BIO_printf(bio_err, "%s: Error enabling DANE TLSA " 2039 "authentication.\n", prog); 2040 ERR_print_errors(bio_err); 2041 goto end; 2042 } 2043 if (dane_tlsa_rrset == NULL) { 2044 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at " 2045 "least one -dane_tlsa_rrdata option.\n", prog); 2046 goto end; 2047 } 2048 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) { 2049 BIO_printf(bio_err, "%s: Failed to import any TLSA " 2050 "records.\n", prog); 2051 goto end; 2052 } 2053 if (dane_ee_no_name) 2054 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS); 2055 } else if (dane_tlsa_rrset != NULL) { 2056 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the " 2057 "-dane_tlsa_domain option.\n", prog); 2058 goto end; 2059 } 2060 2061 re_start: 2062 if (init_client(&s, host, port, bindhost, bindport, socket_family, 2063 socket_type, protocol) == 0) { 2064 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); 2065 BIO_closesocket(s); 2066 goto end; 2067 } 2068 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 2069 2070 if (c_nbio) { 2071 if (!BIO_socket_nbio(s, 1)) { 2072 ERR_print_errors(bio_err); 2073 goto end; 2074 } 2075 BIO_printf(bio_c_out, "Turned on non blocking io\n"); 2076 } 2077#ifndef OPENSSL_NO_DTLS 2078 if (isdtls) { 2079 union BIO_sock_info_u peer_info; 2080 2081#ifndef OPENSSL_NO_SCTP 2082 if (protocol == IPPROTO_SCTP) 2083 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE); 2084 else 2085#endif 2086 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 2087 2088 if ((peer_info.addr = BIO_ADDR_new()) == NULL) { 2089 BIO_printf(bio_err, "memory allocation failure\n"); 2090 BIO_closesocket(s); 2091 goto end; 2092 } 2093 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) { 2094 BIO_printf(bio_err, "getsockname:errno=%d\n", 2095 get_last_socket_error()); 2096 BIO_ADDR_free(peer_info.addr); 2097 BIO_closesocket(s); 2098 goto end; 2099 } 2100 2101 (void)BIO_ctrl_set_connected(sbio, peer_info.addr); 2102 BIO_ADDR_free(peer_info.addr); 2103 peer_info.addr = NULL; 2104 2105 if (enable_timeouts) { 2106 timeout.tv_sec = 0; 2107 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 2108 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 2109 2110 timeout.tv_sec = 0; 2111 timeout.tv_usec = DGRAM_SND_TIMEOUT; 2112 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 2113 } 2114 2115 if (socket_mtu) { 2116 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 2117 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 2118 DTLS_get_link_min_mtu(con)); 2119 BIO_free(sbio); 2120 goto shut; 2121 } 2122 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 2123 if (!DTLS_set_link_mtu(con, socket_mtu)) { 2124 BIO_printf(bio_err, "Failed to set MTU\n"); 2125 BIO_free(sbio); 2126 goto shut; 2127 } 2128 } else { 2129 /* want to do MTU discovery */ 2130 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 2131 } 2132 } else 2133#endif /* OPENSSL_NO_DTLS */ 2134 sbio = BIO_new_socket(s, BIO_NOCLOSE); 2135 2136 if (nbio_test) { 2137 BIO *test; 2138 2139 test = BIO_new(BIO_f_nbio_test()); 2140 sbio = BIO_push(test, sbio); 2141 } 2142 2143 if (c_debug) { 2144 BIO_set_callback(sbio, bio_dump_callback); 2145 BIO_set_callback_arg(sbio, (char *)bio_c_out); 2146 } 2147 if (c_msg) { 2148#ifndef OPENSSL_NO_SSL_TRACE 2149 if (c_msg == 2) 2150 SSL_set_msg_callback(con, SSL_trace); 2151 else 2152#endif 2153 SSL_set_msg_callback(con, msg_cb); 2154 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out); 2155 } 2156 2157 if (c_tlsextdebug) { 2158 SSL_set_tlsext_debug_callback(con, tlsext_cb); 2159 SSL_set_tlsext_debug_arg(con, bio_c_out); 2160 } 2161#ifndef OPENSSL_NO_OCSP 2162 if (c_status_req) { 2163 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 2164 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 2165 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 2166 } 2167#endif 2168 2169 SSL_set_bio(con, sbio, sbio); 2170 SSL_set_connect_state(con); 2171 2172 /* ok, lets connect */ 2173 if (fileno_stdin() > SSL_get_fd(con)) 2174 width = fileno_stdin() + 1; 2175 else 2176 width = SSL_get_fd(con) + 1; 2177 2178 read_tty = 1; 2179 write_tty = 0; 2180 tty_on = 0; 2181 read_ssl = 1; 2182 write_ssl = 1; 2183 2184 cbuf_len = 0; 2185 cbuf_off = 0; 2186 sbuf_len = 0; 2187 sbuf_off = 0; 2188 2189 switch ((PROTOCOL_CHOICE) starttls_proto) { 2190 case PROTO_OFF: 2191 break; 2192 case PROTO_LMTP: 2193 case PROTO_SMTP: 2194 { 2195 /* 2196 * This is an ugly hack that does a lot of assumptions. We do 2197 * have to handle multi-line responses which may come in a single 2198 * packet or not. We therefore have to use BIO_gets() which does 2199 * need a buffering BIO. So during the initial chitchat we do 2200 * push a buffering BIO into the chain that is removed again 2201 * later on to not disturb the rest of the s_client operation. 2202 */ 2203 int foundit = 0; 2204 BIO *fbio = BIO_new(BIO_f_buffer()); 2205 2206 BIO_push(fbio, sbio); 2207 /* Wait for multi-line response to end from LMTP or SMTP */ 2208 do { 2209 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2210 } while (mbuf_len > 3 && mbuf[3] == '-'); 2211 if (protohost == NULL) 2212 protohost = "mail.example.com"; 2213 if (starttls_proto == (int)PROTO_LMTP) 2214 BIO_printf(fbio, "LHLO %s\r\n", protohost); 2215 else 2216 BIO_printf(fbio, "EHLO %s\r\n", protohost); 2217 (void)BIO_flush(fbio); 2218 /* 2219 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP 2220 * response. 2221 */ 2222 do { 2223 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2224 if (strstr(mbuf, "STARTTLS")) 2225 foundit = 1; 2226 } while (mbuf_len > 3 && mbuf[3] == '-'); 2227 (void)BIO_flush(fbio); 2228 BIO_pop(fbio); 2229 BIO_free(fbio); 2230 if (!foundit) 2231 BIO_printf(bio_err, 2232 "Didn't find STARTTLS in server response," 2233 " trying anyway...\n"); 2234 BIO_printf(sbio, "STARTTLS\r\n"); 2235 BIO_read(sbio, sbuf, BUFSIZZ); 2236 } 2237 break; 2238 case PROTO_POP3: 2239 { 2240 BIO_read(sbio, mbuf, BUFSIZZ); 2241 BIO_printf(sbio, "STLS\r\n"); 2242 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ); 2243 if (mbuf_len < 0) { 2244 BIO_printf(bio_err, "BIO_read failed\n"); 2245 goto end; 2246 } 2247 } 2248 break; 2249 case PROTO_IMAP: 2250 { 2251 int foundit = 0; 2252 BIO *fbio = BIO_new(BIO_f_buffer()); 2253 2254 BIO_push(fbio, sbio); 2255 BIO_gets(fbio, mbuf, BUFSIZZ); 2256 /* STARTTLS command requires CAPABILITY... */ 2257 BIO_printf(fbio, ". CAPABILITY\r\n"); 2258 (void)BIO_flush(fbio); 2259 /* wait for multi-line CAPABILITY response */ 2260 do { 2261 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2262 if (strstr(mbuf, "STARTTLS")) 2263 foundit = 1; 2264 } 2265 while (mbuf_len > 3 && mbuf[0] != '.'); 2266 (void)BIO_flush(fbio); 2267 BIO_pop(fbio); 2268 BIO_free(fbio); 2269 if (!foundit) 2270 BIO_printf(bio_err, 2271 "Didn't find STARTTLS in server response," 2272 " trying anyway...\n"); 2273 BIO_printf(sbio, ". STARTTLS\r\n"); 2274 BIO_read(sbio, sbuf, BUFSIZZ); 2275 } 2276 break; 2277 case PROTO_FTP: 2278 { 2279 BIO *fbio = BIO_new(BIO_f_buffer()); 2280 2281 BIO_push(fbio, sbio); 2282 /* wait for multi-line response to end from FTP */ 2283 do { 2284 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2285 } 2286 while (mbuf_len > 3 && (!isdigit((unsigned char)mbuf[0]) || !isdigit((unsigned char)mbuf[1]) || !isdigit((unsigned char)mbuf[2]) || mbuf[3] != ' ')); 2287 (void)BIO_flush(fbio); 2288 BIO_pop(fbio); 2289 BIO_free(fbio); 2290 BIO_printf(sbio, "AUTH TLS\r\n"); 2291 BIO_read(sbio, sbuf, BUFSIZZ); 2292 } 2293 break; 2294 case PROTO_XMPP: 2295 case PROTO_XMPP_SERVER: 2296 { 2297 int seen = 0; 2298 BIO_printf(sbio, "<stream:stream " 2299 "xmlns:stream='http://etherx.jabber.org/streams' " 2300 "xmlns='jabber:%s' to='%s' version='1.0'>", 2301 starttls_proto == PROTO_XMPP ? "client" : "server", 2302 protohost ? protohost : host); 2303 seen = BIO_read(sbio, mbuf, BUFSIZZ); 2304 if (seen < 0) { 2305 BIO_printf(bio_err, "BIO_read failed\n"); 2306 goto end; 2307 } 2308 mbuf[seen] = '\0'; 2309 while (!strstr 2310 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") 2311 && !strstr(mbuf, 2312 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) 2313 { 2314 seen = BIO_read(sbio, mbuf, BUFSIZZ); 2315 2316 if (seen <= 0) 2317 goto shut; 2318 2319 mbuf[seen] = '\0'; 2320 } 2321 BIO_printf(sbio, 2322 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 2323 seen = BIO_read(sbio, sbuf, BUFSIZZ); 2324 if (seen < 0) { 2325 BIO_printf(bio_err, "BIO_read failed\n"); 2326 goto shut; 2327 } 2328 sbuf[seen] = '\0'; 2329 if (!strstr(sbuf, "<proceed")) 2330 goto shut; 2331 mbuf[0] = '\0'; 2332 } 2333 break; 2334 case PROTO_TELNET: 2335 { 2336 static const unsigned char tls_do[] = { 2337 /* IAC DO START_TLS */ 2338 255, 253, 46 2339 }; 2340 static const unsigned char tls_will[] = { 2341 /* IAC WILL START_TLS */ 2342 255, 251, 46 2343 }; 2344 static const unsigned char tls_follows[] = { 2345 /* IAC SB START_TLS FOLLOWS IAC SE */ 2346 255, 250, 46, 1, 255, 240 2347 }; 2348 int bytes; 2349 2350 /* Telnet server should demand we issue START_TLS */ 2351 bytes = BIO_read(sbio, mbuf, BUFSIZZ); 2352 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0) 2353 goto shut; 2354 /* Agree to issue START_TLS and send the FOLLOWS sub-command */ 2355 BIO_write(sbio, tls_will, 3); 2356 BIO_write(sbio, tls_follows, 6); 2357 (void)BIO_flush(sbio); 2358 /* Telnet server also sent the FOLLOWS sub-command */ 2359 bytes = BIO_read(sbio, mbuf, BUFSIZZ); 2360 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0) 2361 goto shut; 2362 } 2363 break; 2364 case PROTO_CONNECT: 2365 { 2366 enum { 2367 error_proto, /* Wrong protocol, not even HTTP */ 2368 error_connect, /* CONNECT failed */ 2369 success 2370 } foundit = error_connect; 2371 BIO *fbio = BIO_new(BIO_f_buffer()); 2372 2373 BIO_push(fbio, sbio); 2374 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr); 2375 (void)BIO_flush(fbio); 2376 /* 2377 * The first line is the HTTP response. According to RFC 7230, 2378 * it's formatted exactly like this: 2379 * 2380 * HTTP/d.d ddd Reason text\r\n 2381 */ 2382 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2383 if (mbuf_len < (int)strlen("HTTP/1.0 200")) { 2384 BIO_printf(bio_err, 2385 "%s: HTTP CONNECT failed, insufficient response " 2386 "from proxy (got %d octets)\n", prog, mbuf_len); 2387 (void)BIO_flush(fbio); 2388 BIO_pop(fbio); 2389 BIO_free(fbio); 2390 goto shut; 2391 } 2392 if (mbuf[8] != ' ') { 2393 BIO_printf(bio_err, 2394 "%s: HTTP CONNECT failed, incorrect response " 2395 "from proxy\n", prog); 2396 foundit = error_proto; 2397 } else if (mbuf[9] != '2') { 2398 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog, 2399 &mbuf[9]); 2400 } else { 2401 foundit = success; 2402 } 2403 if (foundit != error_proto) { 2404 /* Read past all following headers */ 2405 do { 2406 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2407 } while (mbuf_len > 2); 2408 } 2409 (void)BIO_flush(fbio); 2410 BIO_pop(fbio); 2411 BIO_free(fbio); 2412 if (foundit != success) { 2413 goto shut; 2414 } 2415 } 2416 break; 2417 case PROTO_IRC: 2418 { 2419 int numeric; 2420 BIO *fbio = BIO_new(BIO_f_buffer()); 2421 2422 BIO_push(fbio, sbio); 2423 BIO_printf(fbio, "STARTTLS\r\n"); 2424 (void)BIO_flush(fbio); 2425 width = SSL_get_fd(con) + 1; 2426 2427 do { 2428 numeric = 0; 2429 2430 FD_ZERO(&readfds); 2431 openssl_fdset(SSL_get_fd(con), &readfds); 2432 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT; 2433 timeout.tv_usec = 0; 2434 /* 2435 * If the IRCd doesn't respond within 2436 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume 2437 * it doesn't support STARTTLS. Many IRCds 2438 * will not give _any_ sort of response to a 2439 * STARTTLS command when it's not supported. 2440 */ 2441 if (!BIO_get_buffer_num_lines(fbio) 2442 && !BIO_pending(fbio) 2443 && !BIO_pending(sbio) 2444 && select(width, (void *)&readfds, NULL, NULL, 2445 &timeout) < 1) { 2446 BIO_printf(bio_err, 2447 "Timeout waiting for response (%d seconds).\n", 2448 S_CLIENT_IRC_READ_TIMEOUT); 2449 break; 2450 } 2451 2452 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2453 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1) 2454 break; 2455 /* :example.net 451 STARTTLS :You have not registered */ 2456 /* :example.net 421 STARTTLS :Unknown command */ 2457 if ((numeric == 451 || numeric == 421) 2458 && strstr(mbuf, "STARTTLS") != NULL) { 2459 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf); 2460 break; 2461 } 2462 if (numeric == 691) { 2463 BIO_printf(bio_err, "STARTTLS negotiation failed: "); 2464 ERR_print_errors(bio_err); 2465 break; 2466 } 2467 } while (numeric != 670); 2468 2469 (void)BIO_flush(fbio); 2470 BIO_pop(fbio); 2471 BIO_free(fbio); 2472 if (numeric != 670) { 2473 BIO_printf(bio_err, "Server does not support STARTTLS.\n"); 2474 ret = 1; 2475 goto shut; 2476 } 2477 } 2478 break; 2479 case PROTO_MYSQL: 2480 { 2481 /* SSL request packet */ 2482 static const unsigned char ssl_req[] = { 2483 /* payload_length, sequence_id */ 2484 0x20, 0x00, 0x00, 0x01, 2485 /* payload */ 2486 /* capability flags, CLIENT_SSL always set */ 2487 0x85, 0xae, 0x7f, 0x00, 2488 /* max-packet size */ 2489 0x00, 0x00, 0x00, 0x01, 2490 /* character set */ 2491 0x21, 2492 /* string[23] reserved (all [0]) */ 2493 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 2494 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 2495 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 2496 }; 2497 int bytes = 0; 2498 int ssl_flg = 0x800; 2499 int pos; 2500 const unsigned char *packet = (const unsigned char *)sbuf; 2501 2502 /* Receiving Initial Handshake packet. */ 2503 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ); 2504 if (bytes < 0) { 2505 BIO_printf(bio_err, "BIO_read failed\n"); 2506 goto shut; 2507 /* Packet length[3], Packet number[1] + minimum payload[17] */ 2508 } else if (bytes < 21) { 2509 BIO_printf(bio_err, "MySQL packet too short.\n"); 2510 goto shut; 2511 } else if (bytes != (4 + packet[0] + 2512 (packet[1] << 8) + 2513 (packet[2] << 16))) { 2514 BIO_printf(bio_err, "MySQL packet length does not match.\n"); 2515 goto shut; 2516 /* protocol version[1] */ 2517 } else if (packet[4] != 0xA) { 2518 BIO_printf(bio_err, 2519 "Only MySQL protocol version 10 is supported.\n"); 2520 goto shut; 2521 } 2522 2523 pos = 5; 2524 /* server version[string+NULL] */ 2525 for (;;) { 2526 if (pos >= bytes) { 2527 BIO_printf(bio_err, "Cannot confirm server version. "); 2528 goto shut; 2529 } else if (packet[pos++] == '\0') { 2530 break; 2531 } 2532 } 2533 2534 /* make sure we have at least 15 bytes left in the packet */ 2535 if (pos + 15 > bytes) { 2536 BIO_printf(bio_err, 2537 "MySQL server handshake packet is broken.\n"); 2538 goto shut; 2539 } 2540 2541 pos += 12; /* skip over conn id[4] + SALT[8] */ 2542 if (packet[pos++] != '\0') { /* verify filler */ 2543 BIO_printf(bio_err, 2544 "MySQL packet is broken.\n"); 2545 goto shut; 2546 } 2547 2548 /* capability flags[2] */ 2549 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) { 2550 BIO_printf(bio_err, "MySQL server does not support SSL.\n"); 2551 goto shut; 2552 } 2553 2554 /* Sending SSL Handshake packet. */ 2555 BIO_write(sbio, ssl_req, sizeof(ssl_req)); 2556 (void)BIO_flush(sbio); 2557 } 2558 break; 2559 case PROTO_POSTGRES: 2560 { 2561 static const unsigned char ssl_request[] = { 2562 /* Length SSLRequest */ 2563 0, 0, 0, 8, 4, 210, 22, 47 2564 }; 2565 int bytes; 2566 2567 /* Send SSLRequest packet */ 2568 BIO_write(sbio, ssl_request, 8); 2569 (void)BIO_flush(sbio); 2570 2571 /* Reply will be a single S if SSL is enabled */ 2572 bytes = BIO_read(sbio, sbuf, BUFSIZZ); 2573 if (bytes != 1 || sbuf[0] != 'S') 2574 goto shut; 2575 } 2576 break; 2577 case PROTO_NNTP: 2578 { 2579 int foundit = 0; 2580 BIO *fbio = BIO_new(BIO_f_buffer()); 2581 2582 BIO_push(fbio, sbio); 2583 BIO_gets(fbio, mbuf, BUFSIZZ); 2584 /* STARTTLS command requires CAPABILITIES... */ 2585 BIO_printf(fbio, "CAPABILITIES\r\n"); 2586 (void)BIO_flush(fbio); 2587 /* wait for multi-line CAPABILITIES response */ 2588 do { 2589 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2590 if (strstr(mbuf, "STARTTLS")) 2591 foundit = 1; 2592 } while (mbuf_len > 1 && mbuf[0] != '.'); 2593 (void)BIO_flush(fbio); 2594 BIO_pop(fbio); 2595 BIO_free(fbio); 2596 if (!foundit) 2597 BIO_printf(bio_err, 2598 "Didn't find STARTTLS in server response," 2599 " trying anyway...\n"); 2600 BIO_printf(sbio, "STARTTLS\r\n"); 2601 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2602 if (mbuf_len < 0) { 2603 BIO_printf(bio_err, "BIO_read failed\n"); 2604 goto end; 2605 } 2606 mbuf[mbuf_len] = '\0'; 2607 if (strstr(mbuf, "382") == NULL) { 2608 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf); 2609 goto shut; 2610 } 2611 } 2612 break; 2613 case PROTO_SIEVE: 2614 { 2615 int foundit = 0; 2616 BIO *fbio = BIO_new(BIO_f_buffer()); 2617 2618 BIO_push(fbio, sbio); 2619 /* wait for multi-line response to end from Sieve */ 2620 do { 2621 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 2622 /* 2623 * According to RFC 5804 �� 1.7, capability 2624 * is case-insensitive, make it uppercase 2625 */ 2626 if (mbuf_len > 1 && mbuf[0] == '"') { 2627 make_uppercase(mbuf); 2628 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0) 2629 foundit = 1; 2630 } 2631 } while (mbuf_len > 1 && mbuf[0] == '"'); 2632 (void)BIO_flush(fbio); 2633 BIO_pop(fbio); 2634 BIO_free(fbio); 2635 if (!foundit) 2636 BIO_printf(bio_err, 2637 "Didn't find STARTTLS in server response," 2638 " trying anyway...\n"); 2639 BIO_printf(sbio, "STARTTLS\r\n"); 2640 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2641 if (mbuf_len < 0) { 2642 BIO_printf(bio_err, "BIO_read failed\n"); 2643 goto end; 2644 } 2645 mbuf[mbuf_len] = '\0'; 2646 if (mbuf_len < 2) { 2647 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf); 2648 goto shut; 2649 } 2650 /* 2651 * According to RFC 5804 �� 2.2, response codes are case- 2652 * insensitive, make it uppercase but preserve the response. 2653 */ 2654 strncpy(sbuf, mbuf, 2); 2655 make_uppercase(sbuf); 2656 if (strncmp(sbuf, "OK", 2) != 0) { 2657 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf); 2658 goto shut; 2659 } 2660 } 2661 break; 2662 case PROTO_LDAP: 2663 { 2664 /* StartTLS Operation according to RFC 4511 */ 2665 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n" 2666 "[LDAPMessage]\n" 2667 "messageID=INTEGER:1\n" 2668 "extendedReq=EXPLICIT:23A,IMPLICIT:0C," 2669 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n"; 2670 long errline = -1; 2671 char *genstr = NULL; 2672 int result = -1; 2673 ASN1_TYPE *atyp = NULL; 2674 BIO *ldapbio = BIO_new(BIO_s_mem()); 2675 CONF *cnf = NCONF_new(NULL); 2676 2677 if (cnf == NULL) { 2678 BIO_free(ldapbio); 2679 goto end; 2680 } 2681 BIO_puts(ldapbio, ldap_tls_genconf); 2682 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) { 2683 BIO_free(ldapbio); 2684 NCONF_free(cnf); 2685 if (errline <= 0) { 2686 BIO_printf(bio_err, "NCONF_load_bio failed\n"); 2687 goto end; 2688 } else { 2689 BIO_printf(bio_err, "Error on line %ld\n", errline); 2690 goto end; 2691 } 2692 } 2693 BIO_free(ldapbio); 2694 genstr = NCONF_get_string(cnf, "default", "asn1"); 2695 if (genstr == NULL) { 2696 NCONF_free(cnf); 2697 BIO_printf(bio_err, "NCONF_get_string failed\n"); 2698 goto end; 2699 } 2700 atyp = ASN1_generate_nconf(genstr, cnf); 2701 if (atyp == NULL) { 2702 NCONF_free(cnf); 2703 BIO_printf(bio_err, "ASN1_generate_nconf failed\n"); 2704 goto end; 2705 } 2706 NCONF_free(cnf); 2707 2708 /* Send SSLRequest packet */ 2709 BIO_write(sbio, atyp->value.sequence->data, 2710 atyp->value.sequence->length); 2711 (void)BIO_flush(sbio); 2712 ASN1_TYPE_free(atyp); 2713 2714 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 2715 if (mbuf_len < 0) { 2716 BIO_printf(bio_err, "BIO_read failed\n"); 2717 goto end; 2718 } 2719 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len); 2720 if (result < 0) { 2721 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n"); 2722 goto shut; 2723 } else if (result > 0) { 2724 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n", 2725 result); 2726 goto shut; 2727 } 2728 mbuf_len = 0; 2729 } 2730 break; 2731 } 2732 2733 if (early_data_file != NULL 2734 && ((SSL_get0_session(con) != NULL 2735 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0) 2736 || (psksess != NULL 2737 && SSL_SESSION_get_max_early_data(psksess) > 0))) { 2738 BIO *edfile = BIO_new_file(early_data_file, "r"); 2739 size_t readbytes, writtenbytes; 2740 int finish = 0; 2741 2742 if (edfile == NULL) { 2743 BIO_printf(bio_err, "Cannot open early data file\n"); 2744 goto shut; 2745 } 2746 2747 while (!finish) { 2748 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes)) 2749 finish = 1; 2750 2751 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) { 2752 switch (SSL_get_error(con, 0)) { 2753 case SSL_ERROR_WANT_WRITE: 2754 case SSL_ERROR_WANT_ASYNC: 2755 case SSL_ERROR_WANT_READ: 2756 /* Just keep trying - busy waiting */ 2757 continue; 2758 default: 2759 BIO_printf(bio_err, "Error writing early data\n"); 2760 BIO_free(edfile); 2761 ERR_print_errors(bio_err); 2762 goto shut; 2763 } 2764 } 2765 } 2766 2767 BIO_free(edfile); 2768 } 2769 2770 for (;;) { 2771 FD_ZERO(&readfds); 2772 FD_ZERO(&writefds); 2773 2774 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout)) 2775 timeoutp = &timeout; 2776 else 2777 timeoutp = NULL; 2778 2779 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0 2780 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) { 2781 in_init = 1; 2782 tty_on = 0; 2783 } else { 2784 tty_on = 1; 2785 if (in_init) { 2786 in_init = 0; 2787 2788 if (c_brief) { 2789 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n"); 2790 print_ssl_summary(con); 2791 } 2792 2793 print_stuff(bio_c_out, con, full_log); 2794 if (full_log > 0) 2795 full_log--; 2796 2797 if (starttls_proto) { 2798 BIO_write(bio_err, mbuf, mbuf_len); 2799 /* We don't need to know any more */ 2800 if (!reconnect) 2801 starttls_proto = PROTO_OFF; 2802 } 2803 2804 if (reconnect) { 2805 reconnect--; 2806 BIO_printf(bio_c_out, 2807 "drop connection and then reconnect\n"); 2808 do_ssl_shutdown(con); 2809 SSL_set_connect_state(con); 2810 BIO_closesocket(SSL_get_fd(con)); 2811 goto re_start; 2812 } 2813 } 2814 } 2815 2816 ssl_pending = read_ssl && SSL_has_pending(con); 2817 2818 if (!ssl_pending) { 2819#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 2820 if (tty_on) { 2821 /* 2822 * Note that select() returns when read _would not block_, 2823 * and EOF satisfies that. To avoid a CPU-hogging loop, 2824 * set the flag so we exit. 2825 */ 2826 if (read_tty && !at_eof) 2827 openssl_fdset(fileno_stdin(), &readfds); 2828#if !defined(OPENSSL_SYS_VMS) 2829 if (write_tty) 2830 openssl_fdset(fileno_stdout(), &writefds); 2831#endif 2832 } 2833 if (read_ssl) 2834 openssl_fdset(SSL_get_fd(con), &readfds); 2835 if (write_ssl) 2836 openssl_fdset(SSL_get_fd(con), &writefds); 2837#else 2838 if (!tty_on || !write_tty) { 2839 if (read_ssl) 2840 openssl_fdset(SSL_get_fd(con), &readfds); 2841 if (write_ssl) 2842 openssl_fdset(SSL_get_fd(con), &writefds); 2843 } 2844#endif 2845 2846 /* 2847 * Note: under VMS with SOCKETSHR the second parameter is 2848 * currently of type (int *) whereas under other systems it is 2849 * (void *) if you don't have a cast it will choke the compiler: 2850 * if you do have a cast then you can either go for (int *) or 2851 * (void *). 2852 */ 2853#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2854 /* 2855 * Under Windows/DOS we make the assumption that we can always 2856 * write to the tty: therefore if we need to write to the tty we 2857 * just fall through. Otherwise we timeout the select every 2858 * second and see if there are any keypresses. Note: this is a 2859 * hack, in a proper Windows application we wouldn't do this. 2860 */ 2861 i = 0; 2862 if (!write_tty) { 2863 if (read_tty) { 2864 tv.tv_sec = 1; 2865 tv.tv_usec = 0; 2866 i = select(width, (void *)&readfds, (void *)&writefds, 2867 NULL, &tv); 2868 if (!i && (!has_stdin_waiting() || !read_tty)) 2869 continue; 2870 } else 2871 i = select(width, (void *)&readfds, (void *)&writefds, 2872 NULL, timeoutp); 2873 } 2874#else 2875 i = select(width, (void *)&readfds, (void *)&writefds, 2876 NULL, timeoutp); 2877#endif 2878 if (i < 0) { 2879 BIO_printf(bio_err, "bad select %d\n", 2880 get_last_socket_error()); 2881 goto shut; 2882 } 2883 } 2884 2885 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0) 2886 BIO_printf(bio_err, "TIMEOUT occurred\n"); 2887 2888 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { 2889 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); 2890 switch (SSL_get_error(con, k)) { 2891 case SSL_ERROR_NONE: 2892 cbuf_off += k; 2893 cbuf_len -= k; 2894 if (k <= 0) 2895 goto end; 2896 /* we have done a write(con,NULL,0); */ 2897 if (cbuf_len <= 0) { 2898 read_tty = 1; 2899 write_ssl = 0; 2900 } else { /* if (cbuf_len > 0) */ 2901 2902 read_tty = 0; 2903 write_ssl = 1; 2904 } 2905 break; 2906 case SSL_ERROR_WANT_WRITE: 2907 BIO_printf(bio_c_out, "write W BLOCK\n"); 2908 write_ssl = 1; 2909 read_tty = 0; 2910 break; 2911 case SSL_ERROR_WANT_ASYNC: 2912 BIO_printf(bio_c_out, "write A BLOCK\n"); 2913 wait_for_async(con); 2914 write_ssl = 1; 2915 read_tty = 0; 2916 break; 2917 case SSL_ERROR_WANT_READ: 2918 BIO_printf(bio_c_out, "write R BLOCK\n"); 2919 write_tty = 0; 2920 read_ssl = 1; 2921 write_ssl = 0; 2922 break; 2923 case SSL_ERROR_WANT_X509_LOOKUP: 2924 BIO_printf(bio_c_out, "write X BLOCK\n"); 2925 break; 2926 case SSL_ERROR_ZERO_RETURN: 2927 if (cbuf_len != 0) { 2928 BIO_printf(bio_c_out, "shutdown\n"); 2929 ret = 0; 2930 goto shut; 2931 } else { 2932 read_tty = 1; 2933 write_ssl = 0; 2934 break; 2935 } 2936 2937 case SSL_ERROR_SYSCALL: 2938 if ((k != 0) || (cbuf_len != 0)) { 2939 BIO_printf(bio_err, "write:errno=%d\n", 2940 get_last_socket_error()); 2941 goto shut; 2942 } else { 2943 read_tty = 1; 2944 write_ssl = 0; 2945 } 2946 break; 2947 case SSL_ERROR_WANT_ASYNC_JOB: 2948 /* This shouldn't ever happen in s_client - treat as an error */ 2949 case SSL_ERROR_SSL: 2950 ERR_print_errors(bio_err); 2951 goto shut; 2952 } 2953 } 2954#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS) 2955 /* Assume Windows/DOS/BeOS can always write */ 2956 else if (!ssl_pending && write_tty) 2957#else 2958 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds)) 2959#endif 2960 { 2961#ifdef CHARSET_EBCDIC 2962 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); 2963#endif 2964 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); 2965 2966 if (i <= 0) { 2967 BIO_printf(bio_c_out, "DONE\n"); 2968 ret = 0; 2969 goto shut; 2970 } 2971 2972 sbuf_len -= i; 2973 sbuf_off += i; 2974 if (sbuf_len <= 0) { 2975 read_ssl = 1; 2976 write_tty = 0; 2977 } 2978 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { 2979#ifdef RENEG 2980 { 2981 static int iiii; 2982 if (++iiii == 52) { 2983 SSL_renegotiate(con); 2984 iiii = 0; 2985 } 2986 } 2987#endif 2988 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 2989 2990 switch (SSL_get_error(con, k)) { 2991 case SSL_ERROR_NONE: 2992 if (k <= 0) 2993 goto end; 2994 sbuf_off = 0; 2995 sbuf_len = k; 2996 2997 read_ssl = 0; 2998 write_tty = 1; 2999 break; 3000 case SSL_ERROR_WANT_ASYNC: 3001 BIO_printf(bio_c_out, "read A BLOCK\n"); 3002 wait_for_async(con); 3003 write_tty = 0; 3004 read_ssl = 1; 3005 if ((read_tty == 0) && (write_ssl == 0)) 3006 write_ssl = 1; 3007 break; 3008 case SSL_ERROR_WANT_WRITE: 3009 BIO_printf(bio_c_out, "read W BLOCK\n"); 3010 write_ssl = 1; 3011 read_tty = 0; 3012 break; 3013 case SSL_ERROR_WANT_READ: 3014 BIO_printf(bio_c_out, "read R BLOCK\n"); 3015 write_tty = 0; 3016 read_ssl = 1; 3017 if ((read_tty == 0) && (write_ssl == 0)) 3018 write_ssl = 1; 3019 break; 3020 case SSL_ERROR_WANT_X509_LOOKUP: 3021 BIO_printf(bio_c_out, "read X BLOCK\n"); 3022 break; 3023 case SSL_ERROR_SYSCALL: 3024 ret = get_last_socket_error(); 3025 if (c_brief) 3026 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n"); 3027 else 3028 BIO_printf(bio_err, "read:errno=%d\n", ret); 3029 goto shut; 3030 case SSL_ERROR_ZERO_RETURN: 3031 BIO_printf(bio_c_out, "closed\n"); 3032 ret = 0; 3033 goto shut; 3034 case SSL_ERROR_WANT_ASYNC_JOB: 3035 /* This shouldn't ever happen in s_client. Treat as an error */ 3036 case SSL_ERROR_SSL: 3037 ERR_print_errors(bio_err); 3038 goto shut; 3039 } 3040 } 3041/* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */ 3042#if defined(OPENSSL_SYS_MSDOS) 3043 else if (has_stdin_waiting()) 3044#else 3045 else if (FD_ISSET(fileno_stdin(), &readfds)) 3046#endif 3047 { 3048 if (crlf) { 3049 int j, lf_num; 3050 3051 i = raw_read_stdin(cbuf, BUFSIZZ / 2); 3052 lf_num = 0; 3053 /* both loops are skipped when i <= 0 */ 3054 for (j = 0; j < i; j++) 3055 if (cbuf[j] == '\n') 3056 lf_num++; 3057 for (j = i - 1; j >= 0; j--) { 3058 cbuf[j + lf_num] = cbuf[j]; 3059 if (cbuf[j] == '\n') { 3060 lf_num--; 3061 i++; 3062 cbuf[j + lf_num] = '\r'; 3063 } 3064 } 3065 assert(lf_num == 0); 3066 } else 3067 i = raw_read_stdin(cbuf, BUFSIZZ); 3068#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) 3069 if (i == 0) 3070 at_eof = 1; 3071#endif 3072 3073 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) { 3074 BIO_printf(bio_err, "DONE\n"); 3075 ret = 0; 3076 goto shut; 3077 } 3078 3079 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) { 3080 BIO_printf(bio_err, "RENEGOTIATING\n"); 3081 SSL_renegotiate(con); 3082 cbuf_len = 0; 3083 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' ) 3084 && cmdletters) { 3085 BIO_printf(bio_err, "KEYUPDATE\n"); 3086 SSL_key_update(con, 3087 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED 3088 : SSL_KEY_UPDATE_NOT_REQUESTED); 3089 cbuf_len = 0; 3090 } 3091#ifndef OPENSSL_NO_HEARTBEATS 3092 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) { 3093 BIO_printf(bio_err, "HEARTBEATING\n"); 3094 SSL_heartbeat(con); 3095 cbuf_len = 0; 3096 } 3097#endif 3098 else { 3099 cbuf_len = i; 3100 cbuf_off = 0; 3101#ifdef CHARSET_EBCDIC 3102 ebcdic2ascii(cbuf, cbuf, i); 3103#endif 3104 } 3105 3106 write_ssl = 1; 3107 read_tty = 0; 3108 } 3109 } 3110 3111 ret = 0; 3112 shut: 3113 if (in_init) 3114 print_stuff(bio_c_out, con, full_log); 3115 do_ssl_shutdown(con); 3116 3117 /* 3118 * If we ended with an alert being sent, but still with data in the 3119 * network buffer to be read, then calling BIO_closesocket() will 3120 * result in a TCP-RST being sent. On some platforms (notably 3121 * Windows) then this will result in the peer immediately abandoning 3122 * the connection including any buffered alert data before it has 3123 * had a chance to be read. Shutting down the sending side first, 3124 * and then closing the socket sends TCP-FIN first followed by 3125 * TCP-RST. This seems to allow the peer to read the alert data. 3126 */ 3127 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */ 3128 /* 3129 * We just said we have nothing else to say, but it doesn't mean that 3130 * the other side has nothing. It's even recommended to consume incoming 3131 * data. [In testing context this ensures that alerts are passed on...] 3132 */ 3133 timeout.tv_sec = 0; 3134 timeout.tv_usec = 500000; /* some extreme round-trip */ 3135 do { 3136 FD_ZERO(&readfds); 3137 openssl_fdset(s, &readfds); 3138 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0 3139 && BIO_read(sbio, sbuf, BUFSIZZ) > 0); 3140 3141 BIO_closesocket(SSL_get_fd(con)); 3142 end: 3143 if (con != NULL) { 3144 if (prexit != 0) 3145 print_stuff(bio_c_out, con, 1); 3146 SSL_free(con); 3147 } 3148 SSL_SESSION_free(psksess); 3149#if !defined(OPENSSL_NO_NEXTPROTONEG) 3150 OPENSSL_free(next_proto.data); 3151#endif 3152 SSL_CTX_free(ctx); 3153 set_keylog_file(NULL, NULL); 3154 X509_free(cert); 3155 sk_X509_CRL_pop_free(crls, X509_CRL_free); 3156 EVP_PKEY_free(key); 3157 sk_X509_pop_free(chain, X509_free); 3158 OPENSSL_free(pass); 3159#ifndef OPENSSL_NO_SRP 3160 OPENSSL_free(srp_arg.srppassin); 3161#endif 3162 OPENSSL_free(sname_alloc); 3163 OPENSSL_free(connectstr); 3164 OPENSSL_free(bindstr); 3165 OPENSSL_free(bindhost); 3166 OPENSSL_free(bindport); 3167 OPENSSL_free(host); 3168 OPENSSL_free(port); 3169 X509_VERIFY_PARAM_free(vpm); 3170 ssl_excert_free(exc); 3171 sk_OPENSSL_STRING_free(ssl_args); 3172 sk_OPENSSL_STRING_free(dane_tlsa_rrset); 3173 SSL_CONF_CTX_free(cctx); 3174 OPENSSL_clear_free(cbuf, BUFSIZZ); 3175 OPENSSL_clear_free(sbuf, BUFSIZZ); 3176 OPENSSL_clear_free(mbuf, BUFSIZZ); 3177 release_engine(e); 3178 BIO_free(bio_c_out); 3179 bio_c_out = NULL; 3180 BIO_free(bio_c_msg); 3181 bio_c_msg = NULL; 3182 return ret; 3183} 3184 3185static void print_stuff(BIO *bio, SSL *s, int full) 3186{ 3187 X509 *peer = NULL; 3188 STACK_OF(X509) *sk; 3189 const SSL_CIPHER *c; 3190 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION); 3191 long verify_result; 3192#ifndef OPENSSL_NO_COMP 3193 const COMP_METHOD *comp, *expansion; 3194#endif 3195 unsigned char *exportedkeymat; 3196#ifndef OPENSSL_NO_CT 3197 const SSL_CTX *ctx = SSL_get_SSL_CTX(s); 3198#endif 3199 3200 if (full) { 3201 int got_a_chain = 0; 3202 3203 sk = SSL_get_peer_cert_chain(s); 3204 if (sk != NULL) { 3205 got_a_chain = 1; 3206 3207 BIO_printf(bio, "---\nCertificate chain\n"); 3208 for (i = 0; i < sk_X509_num(sk); i++) { 3209 BIO_printf(bio, "%2d s:", i); 3210 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt()); 3211 BIO_puts(bio, "\n"); 3212 BIO_printf(bio, " i:"); 3213 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt()); 3214 BIO_puts(bio, "\n"); 3215 if (c_showcerts) 3216 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 3217 } 3218 } 3219 3220 BIO_printf(bio, "---\n"); 3221 peer = SSL_get_peer_certificate(s); 3222 if (peer != NULL) { 3223 BIO_printf(bio, "Server certificate\n"); 3224 3225 /* Redundant if we showed the whole chain */ 3226 if (!(c_showcerts && got_a_chain)) 3227 PEM_write_bio_X509(bio, peer); 3228 dump_cert_text(bio, peer); 3229 } else { 3230 BIO_printf(bio, "no peer certificate available\n"); 3231 } 3232 print_ca_names(bio, s); 3233 3234 ssl_print_sigalgs(bio, s); 3235 ssl_print_tmp_key(bio, s); 3236 3237#ifndef OPENSSL_NO_CT 3238 /* 3239 * When the SSL session is anonymous, or resumed via an abbreviated 3240 * handshake, no SCTs are provided as part of the handshake. While in 3241 * a resumed session SCTs may be present in the session's certificate, 3242 * no callbacks are invoked to revalidate these, and in any case that 3243 * set of SCTs may be incomplete. Thus it makes little sense to 3244 * attempt to display SCTs from a resumed session's certificate, and of 3245 * course none are associated with an anonymous peer. 3246 */ 3247 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) { 3248 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s); 3249 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0; 3250 3251 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count); 3252 if (sct_count > 0) { 3253 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx); 3254 3255 BIO_printf(bio, "---\n"); 3256 for (i = 0; i < sct_count; ++i) { 3257 SCT *sct = sk_SCT_value(scts, i); 3258 3259 BIO_printf(bio, "SCT validation status: %s\n", 3260 SCT_validation_status_string(sct)); 3261 SCT_print(sct, bio, 0, log_store); 3262 if (i < sct_count - 1) 3263 BIO_printf(bio, "\n---\n"); 3264 } 3265 BIO_printf(bio, "\n"); 3266 } 3267 } 3268#endif 3269 3270 BIO_printf(bio, 3271 "---\nSSL handshake has read %ju bytes " 3272 "and written %ju bytes\n", 3273 BIO_number_read(SSL_get_rbio(s)), 3274 BIO_number_written(SSL_get_wbio(s))); 3275 } 3276 print_verify_detail(s, bio); 3277 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, ")); 3278 c = SSL_get_current_cipher(s); 3279 BIO_printf(bio, "%s, Cipher is %s\n", 3280 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 3281 if (peer != NULL) { 3282 EVP_PKEY *pktmp; 3283 3284 pktmp = X509_get0_pubkey(peer); 3285 BIO_printf(bio, "Server public key is %d bit\n", 3286 EVP_PKEY_bits(pktmp)); 3287 } 3288 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 3289 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 3290#ifndef OPENSSL_NO_COMP 3291 comp = SSL_get_current_compression(s); 3292 expansion = SSL_get_current_expansion(s); 3293 BIO_printf(bio, "Compression: %s\n", 3294 comp ? SSL_COMP_get_name(comp) : "NONE"); 3295 BIO_printf(bio, "Expansion: %s\n", 3296 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 3297#endif 3298 3299#ifdef SSL_DEBUG 3300 { 3301 /* Print out local port of connection: useful for debugging */ 3302 int sock; 3303 union BIO_sock_info_u info; 3304 3305 sock = SSL_get_fd(s); 3306 if ((info.addr = BIO_ADDR_new()) != NULL 3307 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) { 3308 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", 3309 ntohs(BIO_ADDR_rawport(info.addr))); 3310 } 3311 BIO_ADDR_free(info.addr); 3312 } 3313#endif 3314 3315#if !defined(OPENSSL_NO_NEXTPROTONEG) 3316 if (next_proto.status != -1) { 3317 const unsigned char *proto; 3318 unsigned int proto_len; 3319 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 3320 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 3321 BIO_write(bio, proto, proto_len); 3322 BIO_write(bio, "\n", 1); 3323 } 3324#endif 3325 { 3326 const unsigned char *proto; 3327 unsigned int proto_len; 3328 SSL_get0_alpn_selected(s, &proto, &proto_len); 3329 if (proto_len > 0) { 3330 BIO_printf(bio, "ALPN protocol: "); 3331 BIO_write(bio, proto, proto_len); 3332 BIO_write(bio, "\n", 1); 3333 } else 3334 BIO_printf(bio, "No ALPN negotiated\n"); 3335 } 3336 3337#ifndef OPENSSL_NO_SRTP 3338 { 3339 SRTP_PROTECTION_PROFILE *srtp_profile = 3340 SSL_get_selected_srtp_profile(s); 3341 3342 if (srtp_profile) 3343 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 3344 srtp_profile->name); 3345 } 3346#endif 3347 3348 if (istls13) { 3349 switch (SSL_get_early_data_status(s)) { 3350 case SSL_EARLY_DATA_NOT_SENT: 3351 BIO_printf(bio, "Early data was not sent\n"); 3352 break; 3353 3354 case SSL_EARLY_DATA_REJECTED: 3355 BIO_printf(bio, "Early data was rejected\n"); 3356 break; 3357 3358 case SSL_EARLY_DATA_ACCEPTED: 3359 BIO_printf(bio, "Early data was accepted\n"); 3360 break; 3361 3362 } 3363 3364 /* 3365 * We also print the verify results when we dump session information, 3366 * but in TLSv1.3 we may not get that right away (or at all) depending 3367 * on when we get a NewSessionTicket. Therefore we print it now as well. 3368 */ 3369 verify_result = SSL_get_verify_result(s); 3370 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result, 3371 X509_verify_cert_error_string(verify_result)); 3372 } else { 3373 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */ 3374 SSL_SESSION_print(bio, SSL_get_session(s)); 3375 } 3376 3377 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) { 3378 BIO_printf(bio, "Keying material exporter:\n"); 3379 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 3380 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 3381 exportedkeymat = app_malloc(keymatexportlen, "export key"); 3382 if (!SSL_export_keying_material(s, exportedkeymat, 3383 keymatexportlen, 3384 keymatexportlabel, 3385 strlen(keymatexportlabel), 3386 NULL, 0, 0)) { 3387 BIO_printf(bio, " Error\n"); 3388 } else { 3389 BIO_printf(bio, " Keying material: "); 3390 for (i = 0; i < keymatexportlen; i++) 3391 BIO_printf(bio, "%02X", exportedkeymat[i]); 3392 BIO_printf(bio, "\n"); 3393 } 3394 OPENSSL_free(exportedkeymat); 3395 } 3396 BIO_printf(bio, "---\n"); 3397 X509_free(peer); 3398 /* flush, or debugging output gets mixed with http response */ 3399 (void)BIO_flush(bio); 3400} 3401 3402# ifndef OPENSSL_NO_OCSP 3403static int ocsp_resp_cb(SSL *s, void *arg) 3404{ 3405 const unsigned char *p; 3406 int len; 3407 OCSP_RESPONSE *rsp; 3408 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 3409 BIO_puts(arg, "OCSP response: "); 3410 if (p == NULL) { 3411 BIO_puts(arg, "no response sent\n"); 3412 return 1; 3413 } 3414 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 3415 if (rsp == NULL) { 3416 BIO_puts(arg, "response parse error\n"); 3417 BIO_dump_indent(arg, (char *)p, len, 4); 3418 return 0; 3419 } 3420 BIO_puts(arg, "\n======================================\n"); 3421 OCSP_RESPONSE_print(arg, rsp, 0); 3422 BIO_puts(arg, "======================================\n"); 3423 OCSP_RESPONSE_free(rsp); 3424 return 1; 3425} 3426# endif 3427 3428static int ldap_ExtendedResponse_parse(const char *buf, long rem) 3429{ 3430 const unsigned char *cur, *end; 3431 long len; 3432 int tag, xclass, inf, ret = -1; 3433 3434 cur = (const unsigned char *)buf; 3435 end = cur + rem; 3436 3437 /* 3438 * From RFC 4511: 3439 * 3440 * LDAPMessage ::= SEQUENCE { 3441 * messageID MessageID, 3442 * protocolOp CHOICE { 3443 * ... 3444 * extendedResp ExtendedResponse, 3445 * ... }, 3446 * controls [0] Controls OPTIONAL } 3447 * 3448 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE { 3449 * COMPONENTS OF LDAPResult, 3450 * responseName [10] LDAPOID OPTIONAL, 3451 * responseValue [11] OCTET STRING OPTIONAL } 3452 * 3453 * LDAPResult ::= SEQUENCE { 3454 * resultCode ENUMERATED { 3455 * success (0), 3456 * ... 3457 * other (80), 3458 * ... }, 3459 * matchedDN LDAPDN, 3460 * diagnosticMessage LDAPString, 3461 * referral [3] Referral OPTIONAL } 3462 */ 3463 3464 /* pull SEQUENCE */ 3465 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3466 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE || 3467 (rem = end - cur, len > rem)) { 3468 BIO_printf(bio_err, "Unexpected LDAP response\n"); 3469 goto end; 3470 } 3471 3472 rem = len; /* ensure that we don't overstep the SEQUENCE */ 3473 3474 /* pull MessageID */ 3475 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3476 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER || 3477 (rem = end - cur, len > rem)) { 3478 BIO_printf(bio_err, "No MessageID\n"); 3479 goto end; 3480 } 3481 3482 cur += len; /* shall we check for MessageId match or just skip? */ 3483 3484 /* pull [APPLICATION 24] */ 3485 rem = end - cur; 3486 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3487 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION || 3488 tag != 24) { 3489 BIO_printf(bio_err, "Not ExtendedResponse\n"); 3490 goto end; 3491 } 3492 3493 /* pull resultCode */ 3494 rem = end - cur; 3495 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem); 3496 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 || 3497 (rem = end - cur, len > rem)) { 3498 BIO_printf(bio_err, "Not LDAPResult\n"); 3499 goto end; 3500 } 3501 3502 /* len should always be one, but just in case... */ 3503 for (ret = 0, inf = 0; inf < len; inf++) { 3504 ret <<= 8; 3505 ret |= cur[inf]; 3506 } 3507 /* There is more data, but we don't care... */ 3508 end: 3509 return ret; 3510} 3511 3512/* 3513 * Host dNS Name verifier: used for checking that the hostname is in dNS format 3514 * before setting it as SNI 3515 */ 3516static int is_dNS_name(const char *host) 3517{ 3518 const size_t MAX_LABEL_LENGTH = 63; 3519 size_t i; 3520 int isdnsname = 0; 3521 size_t length = strlen(host); 3522 size_t label_length = 0; 3523 int all_numeric = 1; 3524 3525 /* 3526 * Deviation from strict DNS name syntax, also check names with '_' 3527 * Check DNS name syntax, any '-' or '.' must be internal, 3528 * and on either side of each '.' we can't have a '-' or '.'. 3529 * 3530 * If the name has just one label, we don't consider it a DNS name. 3531 */ 3532 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) { 3533 char c = host[i]; 3534 3535 if ((c >= 'a' && c <= 'z') 3536 || (c >= 'A' && c <= 'Z') 3537 || c == '_') { 3538 label_length += 1; 3539 all_numeric = 0; 3540 continue; 3541 } 3542 3543 if (c >= '0' && c <= '9') { 3544 label_length += 1; 3545 continue; 3546 } 3547 3548 /* Dot and hyphen cannot be first or last. */ 3549 if (i > 0 && i < length - 1) { 3550 if (c == '-') { 3551 label_length += 1; 3552 continue; 3553 } 3554 /* 3555 * Next to a dot the preceding and following characters must not be 3556 * another dot or a hyphen. Otherwise, record that the name is 3557 * plausible, since it has two or more labels. 3558 */ 3559 if (c == '.' 3560 && host[i + 1] != '.' 3561 && host[i - 1] != '-' 3562 && host[i + 1] != '-') { 3563 label_length = 0; 3564 isdnsname = 1; 3565 continue; 3566 } 3567 } 3568 isdnsname = 0; 3569 break; 3570 } 3571 3572 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */ 3573 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH); 3574 3575 return isdnsname; 3576} 3577#endif /* OPENSSL_NO_SOCK */ 3578