yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 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 |
| 29 | typedef unsigned int u_int; |
| 30 | #endif |
| 31 | |
| 32 | #include "apps.h" |
| 33 | #include "progs.h" |
| 34 | #include <openssl/x509.h> |
| 35 | #include <openssl/ssl.h> |
| 36 | #include <openssl/err.h> |
| 37 | #include <openssl/pem.h> |
| 38 | #include <openssl/rand.h> |
| 39 | #include <openssl/ocsp.h> |
| 40 | #include <openssl/bn.h> |
| 41 | #include <openssl/async.h> |
| 42 | #ifndef OPENSSL_NO_SRP |
| 43 | # include <openssl/srp.h> |
| 44 | #endif |
| 45 | #ifndef OPENSSL_NO_CT |
| 46 | # include <openssl/ct.h> |
| 47 | #endif |
| 48 | #include "s_apps.h" |
| 49 | #include "timeouts.h" |
| 50 | #include "internal/sockets.h" |
| 51 | |
| 52 | #if defined(__has_feature) |
| 53 | # if __has_feature(memory_sanitizer) |
| 54 | # include <sanitizer/msan_interface.h> |
| 55 | # endif |
| 56 | #endif |
| 57 | |
| 58 | #undef BUFSIZZ |
| 59 | #define BUFSIZZ 1024*8 |
| 60 | #define S_CLIENT_IRC_READ_TIMEOUT 8 |
| 61 | |
| 62 | static char *prog; |
| 63 | static int c_debug = 0; |
| 64 | static int c_showcerts = 0; |
| 65 | static char *keymatexportlabel = NULL; |
| 66 | static int keymatexportlen = 20; |
| 67 | static BIO *bio_c_out = NULL; |
| 68 | static int c_quiet = 0; |
| 69 | static char *sess_out = NULL; |
| 70 | static SSL_SESSION *psksess = NULL; |
| 71 | |
| 72 | static void print_stuff(BIO *berr, SSL *con, int full); |
| 73 | #ifndef OPENSSL_NO_OCSP |
| 74 | static int ocsp_resp_cb(SSL *s, void *arg); |
| 75 | #endif |
| 76 | static int ldap_ExtendedResponse_parse(const char *buf, long rem); |
| 77 | static int is_dNS_name(const char *host); |
| 78 | |
| 79 | static int saved_errno; |
| 80 | |
| 81 | static void save_errno(void) |
| 82 | { |
| 83 | saved_errno = errno; |
| 84 | errno = 0; |
| 85 | } |
| 86 | |
| 87 | static int restore_errno(void) |
| 88 | { |
| 89 | int ret = errno; |
| 90 | errno = saved_errno; |
| 91 | return ret; |
| 92 | } |
| 93 | |
| 94 | static void do_ssl_shutdown(SSL *ssl) |
| 95 | { |
| 96 | int ret; |
| 97 | |
| 98 | do { |
| 99 | /* We only do unidirectional shutdown */ |
| 100 | ret = SSL_shutdown(ssl); |
| 101 | if (ret < 0) { |
| 102 | switch (SSL_get_error(ssl, ret)) { |
| 103 | case SSL_ERROR_WANT_READ: |
| 104 | case SSL_ERROR_WANT_WRITE: |
| 105 | case SSL_ERROR_WANT_ASYNC: |
| 106 | case SSL_ERROR_WANT_ASYNC_JOB: |
| 107 | /* We just do busy waiting. Nothing clever */ |
| 108 | continue; |
| 109 | } |
| 110 | ret = 0; |
| 111 | } |
| 112 | } while (ret < 0); |
| 113 | } |
| 114 | |
| 115 | /* Default PSK identity and key */ |
| 116 | static char *psk_identity = "Client_identity"; |
| 117 | |
| 118 | #ifndef OPENSSL_NO_PSK |
| 119 | static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, |
| 120 | unsigned int max_identity_len, |
| 121 | unsigned char *psk, |
| 122 | unsigned int max_psk_len) |
| 123 | { |
| 124 | int ret; |
| 125 | long key_len; |
| 126 | unsigned char *key; |
| 127 | |
| 128 | if (c_debug) |
| 129 | BIO_printf(bio_c_out, "psk_client_cb\n"); |
| 130 | if (!hint) { |
| 131 | /* no ServerKeyExchange message */ |
| 132 | if (c_debug) |
| 133 | BIO_printf(bio_c_out, |
| 134 | "NULL received PSK identity hint, continuing anyway\n"); |
| 135 | } else if (c_debug) { |
| 136 | BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); |
| 137 | } |
| 138 | |
| 139 | /* |
| 140 | * lookup PSK identity and PSK key based on the given identity hint here |
| 141 | */ |
| 142 | ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity); |
| 143 | if (ret < 0 || (unsigned int)ret > max_identity_len) |
| 144 | goto out_err; |
| 145 | if (c_debug) |
| 146 | BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, |
| 147 | ret); |
| 148 | |
| 149 | /* convert the PSK key to binary */ |
| 150 | key = OPENSSL_hexstr2buf(psk_key, &key_len); |
| 151 | if (key == NULL) { |
| 152 | BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", |
| 153 | psk_key); |
| 154 | return 0; |
| 155 | } |
| 156 | if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) { |
| 157 | BIO_printf(bio_err, |
| 158 | "psk buffer of callback is too small (%d) for key (%ld)\n", |
| 159 | max_psk_len, key_len); |
| 160 | OPENSSL_free(key); |
| 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | memcpy(psk, key, key_len); |
| 165 | OPENSSL_free(key); |
| 166 | |
| 167 | if (c_debug) |
| 168 | BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len); |
| 169 | |
| 170 | return key_len; |
| 171 | out_err: |
| 172 | if (c_debug) |
| 173 | BIO_printf(bio_err, "Error in PSK client callback\n"); |
| 174 | return 0; |
| 175 | } |
| 176 | #endif |
| 177 | |
| 178 | const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 }; |
| 179 | const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 }; |
| 180 | |
| 181 | static int psk_use_session_cb(SSL *s, const EVP_MD *md, |
| 182 | const unsigned char **id, size_t *idlen, |
| 183 | SSL_SESSION **sess) |
| 184 | { |
| 185 | SSL_SESSION *usesess = NULL; |
| 186 | const SSL_CIPHER *cipher = NULL; |
| 187 | |
| 188 | if (psksess != NULL) { |
| 189 | SSL_SESSION_up_ref(psksess); |
| 190 | usesess = psksess; |
| 191 | } else { |
| 192 | long key_len; |
| 193 | unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len); |
| 194 | |
| 195 | if (key == NULL) { |
| 196 | BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", |
| 197 | psk_key); |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | /* We default to SHA-256 */ |
| 202 | cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id); |
| 203 | if (cipher == NULL) { |
| 204 | BIO_printf(bio_err, "Error finding suitable ciphersuite\n"); |
| 205 | OPENSSL_free(key); |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | usesess = SSL_SESSION_new(); |
| 210 | if (usesess == NULL |
| 211 | || !SSL_SESSION_set1_master_key(usesess, key, key_len) |
| 212 | || !SSL_SESSION_set_cipher(usesess, cipher) |
| 213 | || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) { |
| 214 | OPENSSL_free(key); |
| 215 | goto err; |
| 216 | } |
| 217 | OPENSSL_free(key); |
| 218 | } |
| 219 | |
| 220 | cipher = SSL_SESSION_get0_cipher(usesess); |
| 221 | if (cipher == NULL) |
| 222 | goto err; |
| 223 | |
| 224 | if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) { |
| 225 | /* PSK not usable, ignore it */ |
| 226 | *id = NULL; |
| 227 | *idlen = 0; |
| 228 | *sess = NULL; |
| 229 | SSL_SESSION_free(usesess); |
| 230 | } else { |
| 231 | *sess = usesess; |
| 232 | *id = (unsigned char *)psk_identity; |
| 233 | *idlen = strlen(psk_identity); |
| 234 | } |
| 235 | |
| 236 | return 1; |
| 237 | |
| 238 | err: |
| 239 | SSL_SESSION_free(usesess); |
| 240 | return 0; |
| 241 | } |
| 242 | |
| 243 | /* This is a context that we pass to callbacks */ |
| 244 | typedef struct tlsextctx_st { |
| 245 | BIO *biodebug; |
| 246 | int ack; |
| 247 | } tlsextctx; |
| 248 | |
| 249 | static int ssl_servername_cb(SSL *s, int *ad, void *arg) |
| 250 | { |
| 251 | tlsextctx *p = (tlsextctx *) arg; |
| 252 | const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); |
| 253 | if (SSL_get_servername_type(s) != -1) |
| 254 | p->ack = !SSL_session_reused(s) && hn != NULL; |
| 255 | else |
| 256 | BIO_printf(bio_err, "Can't use SSL_get_servername\n"); |
| 257 | |
| 258 | return SSL_TLSEXT_ERR_OK; |
| 259 | } |
| 260 | |
| 261 | #ifndef OPENSSL_NO_SRP |
| 262 | |
| 263 | /* This is a context that we pass to all callbacks */ |
| 264 | typedef struct srp_arg_st { |
| 265 | char *srppassin; |
| 266 | char *srplogin; |
| 267 | int msg; /* copy from c_msg */ |
| 268 | int debug; /* copy from c_debug */ |
| 269 | int amp; /* allow more groups */ |
| 270 | int strength; /* minimal size for N */ |
| 271 | } SRP_ARG; |
| 272 | |
| 273 | # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 |
| 274 | |
| 275 | static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g) |
| 276 | { |
| 277 | BN_CTX *bn_ctx = BN_CTX_new(); |
| 278 | BIGNUM *p = BN_new(); |
| 279 | BIGNUM *r = BN_new(); |
| 280 | int ret = |
| 281 | g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && |
| 282 | BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 && |
| 283 | p != NULL && BN_rshift1(p, N) && |
| 284 | /* p = (N-1)/2 */ |
| 285 | BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 && |
| 286 | r != NULL && |
| 287 | /* verify g^((N-1)/2) == -1 (mod N) */ |
| 288 | BN_mod_exp(r, g, p, N, bn_ctx) && |
| 289 | BN_add_word(r, 1) && BN_cmp(r, N) == 0; |
| 290 | |
| 291 | BN_free(r); |
| 292 | BN_free(p); |
| 293 | BN_CTX_free(bn_ctx); |
| 294 | return ret; |
| 295 | } |
| 296 | |
| 297 | /*- |
| 298 | * This callback is used here for two purposes: |
| 299 | * - extended debugging |
| 300 | * - making some primality tests for unknown groups |
| 301 | * The callback is only called for a non default group. |
| 302 | * |
| 303 | * An application does not need the call back at all if |
| 304 | * only the standard groups are used. In real life situations, |
| 305 | * client and server already share well known groups, |
| 306 | * thus there is no need to verify them. |
| 307 | * Furthermore, in case that a server actually proposes a group that |
| 308 | * is not one of those defined in RFC 5054, it is more appropriate |
| 309 | * to add the group to a static list and then compare since |
| 310 | * primality tests are rather cpu consuming. |
| 311 | */ |
| 312 | |
| 313 | static int ssl_srp_verify_param_cb(SSL *s, void *arg) |
| 314 | { |
| 315 | SRP_ARG *srp_arg = (SRP_ARG *)arg; |
| 316 | BIGNUM *N = NULL, *g = NULL; |
| 317 | |
| 318 | if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL)) |
| 319 | return 0; |
| 320 | if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) { |
| 321 | BIO_printf(bio_err, "SRP parameters:\n"); |
| 322 | BIO_printf(bio_err, "\tN="); |
| 323 | BN_print(bio_err, N); |
| 324 | BIO_printf(bio_err, "\n\tg="); |
| 325 | BN_print(bio_err, g); |
| 326 | BIO_printf(bio_err, "\n"); |
| 327 | } |
| 328 | |
| 329 | if (SRP_check_known_gN_param(g, N)) |
| 330 | return 1; |
| 331 | |
| 332 | if (srp_arg->amp == 1) { |
| 333 | if (srp_arg->debug) |
| 334 | BIO_printf(bio_err, |
| 335 | "SRP param N and g are not known params, going to check deeper.\n"); |
| 336 | |
| 337 | /* |
| 338 | * The srp_moregroups is a real debugging feature. Implementors |
| 339 | * should rather add the value to the known ones. The minimal size |
| 340 | * has already been tested. |
| 341 | */ |
| 342 | if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g)) |
| 343 | return 1; |
| 344 | } |
| 345 | BIO_printf(bio_err, "SRP param N and g rejected.\n"); |
| 346 | return 0; |
| 347 | } |
| 348 | |
| 349 | # define PWD_STRLEN 1024 |
| 350 | |
| 351 | static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg) |
| 352 | { |
| 353 | SRP_ARG *srp_arg = (SRP_ARG *)arg; |
| 354 | char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer"); |
| 355 | PW_CB_DATA cb_tmp; |
| 356 | int l; |
| 357 | |
| 358 | cb_tmp.password = (char *)srp_arg->srppassin; |
| 359 | cb_tmp.prompt_info = "SRP user"; |
| 360 | if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) { |
| 361 | BIO_printf(bio_err, "Can't read Password\n"); |
| 362 | OPENSSL_free(pass); |
| 363 | return NULL; |
| 364 | } |
| 365 | *(pass + l) = '\0'; |
| 366 | |
| 367 | return pass; |
| 368 | } |
| 369 | |
| 370 | #endif |
| 371 | |
| 372 | #ifndef OPENSSL_NO_NEXTPROTONEG |
| 373 | /* This the context that we pass to next_proto_cb */ |
| 374 | typedef struct tlsextnextprotoctx_st { |
| 375 | unsigned char *data; |
| 376 | size_t len; |
| 377 | int status; |
| 378 | } tlsextnextprotoctx; |
| 379 | |
| 380 | static tlsextnextprotoctx next_proto; |
| 381 | |
| 382 | static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, |
| 383 | const unsigned char *in, unsigned int inlen, |
| 384 | void *arg) |
| 385 | { |
| 386 | tlsextnextprotoctx *ctx = arg; |
| 387 | |
| 388 | if (!c_quiet) { |
| 389 | /* We can assume that |in| is syntactically valid. */ |
| 390 | unsigned i; |
| 391 | BIO_printf(bio_c_out, "Protocols advertised by server: "); |
| 392 | for (i = 0; i < inlen;) { |
| 393 | if (i) |
| 394 | BIO_write(bio_c_out, ", ", 2); |
| 395 | BIO_write(bio_c_out, &in[i + 1], in[i]); |
| 396 | i += in[i] + 1; |
| 397 | } |
| 398 | BIO_write(bio_c_out, "\n", 1); |
| 399 | } |
| 400 | |
| 401 | ctx->status = |
| 402 | SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); |
| 403 | return SSL_TLSEXT_ERR_OK; |
| 404 | } |
| 405 | #endif /* ndef OPENSSL_NO_NEXTPROTONEG */ |
| 406 | |
| 407 | static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type, |
| 408 | const unsigned char *in, size_t inlen, |
| 409 | int *al, void *arg) |
| 410 | { |
| 411 | char pem_name[100]; |
| 412 | unsigned char ext_buf[4 + 65536]; |
| 413 | |
| 414 | /* Reconstruct the type/len fields prior to extension data */ |
| 415 | inlen &= 0xffff; /* for formal memcmpy correctness */ |
| 416 | ext_buf[0] = (unsigned char)(ext_type >> 8); |
| 417 | ext_buf[1] = (unsigned char)(ext_type); |
| 418 | ext_buf[2] = (unsigned char)(inlen >> 8); |
| 419 | ext_buf[3] = (unsigned char)(inlen); |
| 420 | memcpy(ext_buf + 4, in, inlen); |
| 421 | |
| 422 | BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d", |
| 423 | ext_type); |
| 424 | PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen); |
| 425 | return 1; |
| 426 | } |
| 427 | |
| 428 | /* |
| 429 | * Hex decoder that tolerates optional whitespace. Returns number of bytes |
| 430 | * produced, advances inptr to end of input string. |
| 431 | */ |
| 432 | static ossl_ssize_t hexdecode(const char **inptr, void *result) |
| 433 | { |
| 434 | unsigned char **out = (unsigned char **)result; |
| 435 | const char *in = *inptr; |
| 436 | unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode"); |
| 437 | unsigned char *cp = ret; |
| 438 | uint8_t byte; |
| 439 | int nibble = 0; |
| 440 | |
| 441 | if (ret == NULL) |
| 442 | return -1; |
| 443 | |
| 444 | for (byte = 0; *in; ++in) { |
| 445 | int x; |
| 446 | |
| 447 | if (isspace(_UC(*in))) |
| 448 | continue; |
| 449 | x = OPENSSL_hexchar2int(*in); |
| 450 | if (x < 0) { |
| 451 | OPENSSL_free(ret); |
| 452 | return 0; |
| 453 | } |
| 454 | byte |= (char)x; |
| 455 | if ((nibble ^= 1) == 0) { |
| 456 | *cp++ = byte; |
| 457 | byte = 0; |
| 458 | } else { |
| 459 | byte <<= 4; |
| 460 | } |
| 461 | } |
| 462 | if (nibble != 0) { |
| 463 | OPENSSL_free(ret); |
| 464 | return 0; |
| 465 | } |
| 466 | *inptr = in; |
| 467 | |
| 468 | return cp - (*out = ret); |
| 469 | } |
| 470 | |
| 471 | /* |
| 472 | * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances |
| 473 | * inptr to next field skipping leading whitespace. |
| 474 | */ |
| 475 | static ossl_ssize_t checked_uint8(const char **inptr, void *out) |
| 476 | { |
| 477 | uint8_t *result = (uint8_t *)out; |
| 478 | const char *in = *inptr; |
| 479 | char *endp; |
| 480 | long v; |
| 481 | int e; |
| 482 | |
| 483 | save_errno(); |
| 484 | v = strtol(in, &endp, 10); |
| 485 | e = restore_errno(); |
| 486 | |
| 487 | if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) || |
| 488 | endp == in || !isspace(_UC(*endp)) || |
| 489 | v != (*result = (uint8_t) v)) { |
| 490 | return -1; |
| 491 | } |
| 492 | for (in = endp; isspace(_UC(*in)); ++in) |
| 493 | continue; |
| 494 | |
| 495 | *inptr = in; |
| 496 | return 1; |
| 497 | } |
| 498 | |
| 499 | struct tlsa_field { |
| 500 | void *var; |
| 501 | const char *name; |
| 502 | ossl_ssize_t (*parser)(const char **, void *); |
| 503 | }; |
| 504 | |
| 505 | static int tlsa_import_rr(SSL *con, const char *rrdata) |
| 506 | { |
| 507 | /* Not necessary to re-init these values; the "parsers" do that. */ |
| 508 | static uint8_t usage; |
| 509 | static uint8_t selector; |
| 510 | static uint8_t mtype; |
| 511 | static unsigned char *data; |
| 512 | static struct tlsa_field tlsa_fields[] = { |
| 513 | { &usage, "usage", checked_uint8 }, |
| 514 | { &selector, "selector", checked_uint8 }, |
| 515 | { &mtype, "mtype", checked_uint8 }, |
| 516 | { &data, "data", hexdecode }, |
| 517 | { NULL, } |
| 518 | }; |
| 519 | struct tlsa_field *f; |
| 520 | int ret; |
| 521 | const char *cp = rrdata; |
| 522 | ossl_ssize_t len = 0; |
| 523 | |
| 524 | for (f = tlsa_fields; f->var; ++f) { |
| 525 | /* Returns number of bytes produced, advances cp to next field */ |
| 526 | if ((len = f->parser(&cp, f->var)) <= 0) { |
| 527 | BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n", |
| 528 | prog, f->name, rrdata); |
| 529 | return 0; |
| 530 | } |
| 531 | } |
| 532 | /* The data field is last, so len is its length */ |
| 533 | ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len); |
| 534 | OPENSSL_free(data); |
| 535 | |
| 536 | if (ret == 0) { |
| 537 | ERR_print_errors(bio_err); |
| 538 | BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n", |
| 539 | prog, rrdata); |
| 540 | return 0; |
| 541 | } |
| 542 | if (ret < 0) { |
| 543 | ERR_print_errors(bio_err); |
| 544 | BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n", |
| 545 | prog, rrdata); |
| 546 | return 0; |
| 547 | } |
| 548 | return ret; |
| 549 | } |
| 550 | |
| 551 | static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset) |
| 552 | { |
| 553 | int num = sk_OPENSSL_STRING_num(rrset); |
| 554 | int count = 0; |
| 555 | int i; |
| 556 | |
| 557 | for (i = 0; i < num; ++i) { |
| 558 | char *rrdata = sk_OPENSSL_STRING_value(rrset, i); |
| 559 | if (tlsa_import_rr(con, rrdata) > 0) |
| 560 | ++count; |
| 561 | } |
| 562 | return count > 0; |
| 563 | } |
| 564 | |
| 565 | typedef enum OPTION_choice { |
| 566 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
| 567 | OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX, |
| 568 | OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT, |
| 569 | OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN, |
| 570 | OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, |
| 571 | OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO, |
| 572 | OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF, |
| 573 | OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG, |
| 574 | OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG, |
| 575 | OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE, |
| 576 | OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS, |
| 577 | #ifndef OPENSSL_NO_SRP |
| 578 | OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER, |
| 579 | OPT_SRP_MOREGROUPS, |
| 580 | #endif |
| 581 | OPT_SSL3, OPT_SSL_CONFIG, |
| 582 | OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, |
| 583 | OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS, |
| 584 | OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, |
| 585 | OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, |
| 586 | OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN, |
| 587 | OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC, |
| 588 | OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST, |
| 589 | OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, |
| 590 | OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE, |
| 591 | OPT_V_ENUM, |
| 592 | OPT_X_ENUM, |
| 593 | OPT_S_ENUM, |
| 594 | OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN, |
| 595 | #ifndef OPENSSL_NO_CT |
| 596 | OPT_CT, OPT_NOCT, OPT_CTLOG_FILE, |
| 597 | #endif |
| 598 | OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME, |
| 599 | OPT_ENABLE_PHA, |
| 600 | OPT_SCTP_LABEL_BUG, |
| 601 | OPT_R_ENUM |
| 602 | } OPTION_CHOICE; |
| 603 | |
| 604 | const OPTIONS s_client_options[] = { |
| 605 | {"help", OPT_HELP, '-', "Display this summary"}, |
| 606 | {"host", OPT_HOST, 's', "Use -connect instead"}, |
| 607 | {"port", OPT_PORT, 'p', "Use -connect instead"}, |
| 608 | {"connect", OPT_CONNECT, 's', |
| 609 | "TCP/IP where to connect (default is :" PORT ")"}, |
| 610 | {"bind", OPT_BIND, 's', "bind local address for connection"}, |
| 611 | {"proxy", OPT_PROXY, 's', |
| 612 | "Connect to via specified proxy to the real server"}, |
| 613 | #ifdef AF_UNIX |
| 614 | {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"}, |
| 615 | #endif |
| 616 | {"4", OPT_4, '-', "Use IPv4 only"}, |
| 617 | #ifdef AF_INET6 |
| 618 | {"6", OPT_6, '-', "Use IPv6 only"}, |
| 619 | #endif |
| 620 | {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"}, |
| 621 | {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"}, |
| 622 | {"certform", OPT_CERTFORM, 'F', |
| 623 | "Certificate format (PEM or DER) PEM default"}, |
| 624 | {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"}, |
| 625 | {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"}, |
| 626 | {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"}, |
| 627 | {"pass", OPT_PASS, 's', "Private key file pass phrase source"}, |
| 628 | {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, |
| 629 | {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"}, |
| 630 | {"no-CAfile", OPT_NOCAFILE, '-', |
| 631 | "Do not load the default certificates file"}, |
| 632 | {"no-CApath", OPT_NOCAPATH, '-', |
| 633 | "Do not load certificates from the default certificates directory"}, |
| 634 | {"requestCAfile", OPT_REQCAFILE, '<', |
| 635 | "PEM format file of CA names to send to the server"}, |
| 636 | {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"}, |
| 637 | {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's', |
| 638 | "DANE TLSA rrdata presentation form"}, |
| 639 | {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-', |
| 640 | "Disable name checks when matching DANE-EE(3) TLSA records"}, |
| 641 | {"reconnect", OPT_RECONNECT, '-', |
| 642 | "Drop and re-make the connection with the same Session-ID"}, |
| 643 | {"showcerts", OPT_SHOWCERTS, '-', |
| 644 | "Show all certificates sent by the server"}, |
| 645 | {"debug", OPT_DEBUG, '-', "Extra output"}, |
| 646 | {"msg", OPT_MSG, '-', "Show protocol messages"}, |
| 647 | {"msgfile", OPT_MSGFILE, '>', |
| 648 | "File to send output of -msg or -trace, instead of stdout"}, |
| 649 | {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"}, |
| 650 | {"state", OPT_STATE, '-', "Print the ssl states"}, |
| 651 | {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, |
| 652 | {"quiet", OPT_QUIET, '-', "No s_client output"}, |
| 653 | {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"}, |
| 654 | {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"}, |
| 655 | {"starttls", OPT_STARTTLS, 's', |
| 656 | "Use the appropriate STARTTLS command before starting TLS"}, |
| 657 | {"xmpphost", OPT_XMPPHOST, 's', |
| 658 | "Alias of -name option for \"-starttls xmpp[-server]\""}, |
| 659 | OPT_R_OPTIONS, |
| 660 | {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"}, |
| 661 | {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"}, |
| 662 | #ifndef OPENSSL_NO_SRTP |
| 663 | {"use_srtp", OPT_USE_SRTP, 's', |
| 664 | "Offer SRTP key management with a colon-separated profile list"}, |
| 665 | #endif |
| 666 | {"keymatexport", OPT_KEYMATEXPORT, 's', |
| 667 | "Export keying material using label"}, |
| 668 | {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', |
| 669 | "Export len bytes of keying material (default 20)"}, |
| 670 | {"maxfraglen", OPT_MAXFRAGLEN, 'p', |
| 671 | "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"}, |
| 672 | {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"}, |
| 673 | {"name", OPT_PROTOHOST, 's', |
| 674 | "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""}, |
| 675 | {"CRL", OPT_CRL, '<', "CRL file to use"}, |
| 676 | {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"}, |
| 677 | {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"}, |
| 678 | {"verify_return_error", OPT_VERIFY_RET_ERROR, '-', |
| 679 | "Close connection on verification error"}, |
| 680 | {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"}, |
| 681 | {"brief", OPT_BRIEF, '-', |
| 682 | "Restrict output to brief summary of connection parameters"}, |
| 683 | {"prexit", OPT_PREXIT, '-', |
| 684 | "Print session information when the program exits"}, |
| 685 | {"security_debug", OPT_SECURITY_DEBUG, '-', |
| 686 | "Enable security debug messages"}, |
| 687 | {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-', |
| 688 | "Output more security debug output"}, |
| 689 | {"cert_chain", OPT_CERT_CHAIN, '<', |
| 690 | "Certificate chain file (in PEM format)"}, |
| 691 | {"chainCApath", OPT_CHAINCAPATH, '/', |
| 692 | "Use dir as certificate store path to build CA certificate chain"}, |
| 693 | {"verifyCApath", OPT_VERIFYCAPATH, '/', |
| 694 | "Use dir as certificate store path to verify CA certificate"}, |
| 695 | {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"}, |
| 696 | {"chainCAfile", OPT_CHAINCAFILE, '<', |
| 697 | "CA file for certificate chain (PEM format)"}, |
| 698 | {"verifyCAfile", OPT_VERIFYCAFILE, '<', |
| 699 | "CA file for certificate verification (PEM format)"}, |
| 700 | {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"}, |
| 701 | {"servername", OPT_SERVERNAME, 's', |
| 702 | "Set TLS extension servername (SNI) in ClientHello (default)"}, |
| 703 | {"noservername", OPT_NOSERVERNAME, '-', |
| 704 | "Do not send the server name (SNI) extension in the ClientHello"}, |
| 705 | {"tlsextdebug", OPT_TLSEXTDEBUG, '-', |
| 706 | "Hex dump of all TLS extensions received"}, |
| 707 | #ifndef OPENSSL_NO_OCSP |
| 708 | {"status", OPT_STATUS, '-', "Request certificate status from server"}, |
| 709 | #endif |
| 710 | {"serverinfo", OPT_SERVERINFO, 's', |
| 711 | "types Send empty ClientHello extensions (comma-separated numbers)"}, |
| 712 | {"alpn", OPT_ALPN, 's', |
| 713 | "Enable ALPN extension, considering named protocols supported (comma-separated list)"}, |
| 714 | {"async", OPT_ASYNC, '-', "Support asynchronous operation"}, |
| 715 | {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"}, |
| 716 | {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "}, |
| 717 | {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p', |
| 718 | "Size used to split data for encrypt pipelines"}, |
| 719 | {"max_pipelines", OPT_MAX_PIPELINES, 'p', |
| 720 | "Maximum number of encrypt/decrypt pipelines to be used"}, |
| 721 | {"read_buf", OPT_READ_BUF, 'p', |
| 722 | "Default read buffer size to be used for connections"}, |
| 723 | OPT_S_OPTIONS, |
| 724 | OPT_V_OPTIONS, |
| 725 | OPT_X_OPTIONS, |
| 726 | #ifndef OPENSSL_NO_SSL3 |
| 727 | {"ssl3", OPT_SSL3, '-', "Just use SSLv3"}, |
| 728 | #endif |
| 729 | #ifndef OPENSSL_NO_TLS1 |
| 730 | {"tls1", OPT_TLS1, '-', "Just use TLSv1"}, |
| 731 | #endif |
| 732 | #ifndef OPENSSL_NO_TLS1_1 |
| 733 | {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"}, |
| 734 | #endif |
| 735 | #ifndef OPENSSL_NO_TLS1_2 |
| 736 | {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"}, |
| 737 | #endif |
| 738 | #ifndef OPENSSL_NO_TLS1_3 |
| 739 | {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"}, |
| 740 | #endif |
| 741 | #ifndef OPENSSL_NO_DTLS |
| 742 | {"dtls", OPT_DTLS, '-', "Use any version of DTLS"}, |
| 743 | {"timeout", OPT_TIMEOUT, '-', |
| 744 | "Enable send/receive timeout on DTLS connections"}, |
| 745 | {"mtu", OPT_MTU, 'p', "Set the link layer MTU"}, |
| 746 | #endif |
| 747 | #ifndef OPENSSL_NO_DTLS1 |
| 748 | {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"}, |
| 749 | #endif |
| 750 | #ifndef OPENSSL_NO_DTLS1_2 |
| 751 | {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"}, |
| 752 | #endif |
| 753 | #ifndef OPENSSL_NO_SCTP |
| 754 | {"sctp", OPT_SCTP, '-', "Use SCTP"}, |
| 755 | {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"}, |
| 756 | #endif |
| 757 | #ifndef OPENSSL_NO_SSL_TRACE |
| 758 | {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"}, |
| 759 | #endif |
| 760 | #ifdef WATT32 |
| 761 | {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"}, |
| 762 | #endif |
| 763 | {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, |
| 764 | {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"}, |
| 765 | {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, |
| 766 | {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"}, |
| 767 | #ifndef OPENSSL_NO_SRP |
| 768 | {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"}, |
| 769 | {"srppass", OPT_SRPPASS, 's', "Password for 'user'"}, |
| 770 | {"srp_lateuser", OPT_SRP_LATEUSER, '-', |
| 771 | "SRP username into second ClientHello message"}, |
| 772 | {"srp_moregroups", OPT_SRP_MOREGROUPS, '-', |
| 773 | "Tolerate other than the known g N values."}, |
| 774 | {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"}, |
| 775 | #endif |
| 776 | #ifndef OPENSSL_NO_NEXTPROTONEG |
| 777 | {"nextprotoneg", OPT_NEXTPROTONEG, 's', |
| 778 | "Enable NPN extension, considering named protocols supported (comma-separated list)"}, |
| 779 | #endif |
| 780 | #ifndef OPENSSL_NO_ENGINE |
| 781 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
| 782 | {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's', |
| 783 | "Specify engine to be used for client certificate operations"}, |
| 784 | #endif |
| 785 | #ifndef OPENSSL_NO_CT |
| 786 | {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"}, |
| 787 | {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"}, |
| 788 | {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"}, |
| 789 | #endif |
| 790 | {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"}, |
| 791 | {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"}, |
| 792 | {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"}, |
| 793 | {NULL, OPT_EOF, 0x00, NULL} |
| 794 | }; |
| 795 | |
| 796 | typedef enum PROTOCOL_choice { |
| 797 | PROTO_OFF, |
| 798 | PROTO_SMTP, |
| 799 | PROTO_POP3, |
| 800 | PROTO_IMAP, |
| 801 | PROTO_FTP, |
| 802 | PROTO_TELNET, |
| 803 | PROTO_XMPP, |
| 804 | PROTO_XMPP_SERVER, |
| 805 | PROTO_CONNECT, |
| 806 | PROTO_IRC, |
| 807 | PROTO_MYSQL, |
| 808 | PROTO_POSTGRES, |
| 809 | PROTO_LMTP, |
| 810 | PROTO_NNTP, |
| 811 | PROTO_SIEVE, |
| 812 | PROTO_LDAP |
| 813 | } PROTOCOL_CHOICE; |
| 814 | |
| 815 | static const OPT_PAIR services[] = { |
| 816 | {"smtp", PROTO_SMTP}, |
| 817 | {"pop3", PROTO_POP3}, |
| 818 | {"imap", PROTO_IMAP}, |
| 819 | {"ftp", PROTO_FTP}, |
| 820 | {"xmpp", PROTO_XMPP}, |
| 821 | {"xmpp-server", PROTO_XMPP_SERVER}, |
| 822 | {"telnet", PROTO_TELNET}, |
| 823 | {"irc", PROTO_IRC}, |
| 824 | {"mysql", PROTO_MYSQL}, |
| 825 | {"postgres", PROTO_POSTGRES}, |
| 826 | {"lmtp", PROTO_LMTP}, |
| 827 | {"nntp", PROTO_NNTP}, |
| 828 | {"sieve", PROTO_SIEVE}, |
| 829 | {"ldap", PROTO_LDAP}, |
| 830 | {NULL, 0} |
| 831 | }; |
| 832 | |
| 833 | #define IS_INET_FLAG(o) \ |
| 834 | (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT) |
| 835 | #define IS_UNIX_FLAG(o) (o == OPT_UNIX) |
| 836 | |
| 837 | #define IS_PROT_FLAG(o) \ |
| 838 | (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \ |
| 839 | || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2) |
| 840 | |
| 841 | /* Free |*dest| and optionally set it to a copy of |source|. */ |
| 842 | static void freeandcopy(char **dest, const char *source) |
| 843 | { |
| 844 | OPENSSL_free(*dest); |
| 845 | *dest = NULL; |
| 846 | if (source != NULL) |
| 847 | *dest = OPENSSL_strdup(source); |
| 848 | } |
| 849 | |
| 850 | static int new_session_cb(SSL *s, SSL_SESSION *sess) |
| 851 | { |
| 852 | |
| 853 | if (sess_out != NULL) { |
| 854 | BIO *stmp = BIO_new_file(sess_out, "w"); |
| 855 | |
| 856 | if (stmp == NULL) { |
| 857 | BIO_printf(bio_err, "Error writing session file %s\n", sess_out); |
| 858 | } else { |
| 859 | PEM_write_bio_SSL_SESSION(stmp, sess); |
| 860 | BIO_free(stmp); |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | /* |
| 865 | * Session data gets dumped on connection for TLSv1.2 and below, and on |
| 866 | * arrival of the NewSessionTicket for TLSv1.3. |
| 867 | */ |
| 868 | if (SSL_version(s) == TLS1_3_VERSION) { |
| 869 | BIO_printf(bio_c_out, |
| 870 | "---\nPost-Handshake New Session Ticket arrived:\n"); |
| 871 | SSL_SESSION_print(bio_c_out, sess); |
| 872 | BIO_printf(bio_c_out, "---\n"); |
| 873 | } |
| 874 | |
| 875 | /* |
| 876 | * We always return a "fail" response so that the session gets freed again |
| 877 | * because we haven't used the reference. |
| 878 | */ |
| 879 | return 0; |
| 880 | } |
| 881 | |
| 882 | int s_client_main(int argc, char **argv) |
| 883 | { |
| 884 | BIO *sbio; |
| 885 | EVP_PKEY *key = NULL; |
| 886 | SSL *con = NULL; |
| 887 | SSL_CTX *ctx = NULL; |
| 888 | STACK_OF(X509) *chain = NULL; |
| 889 | X509 *cert = NULL; |
| 890 | X509_VERIFY_PARAM *vpm = NULL; |
| 891 | SSL_EXCERT *exc = NULL; |
| 892 | SSL_CONF_CTX *cctx = NULL; |
| 893 | STACK_OF(OPENSSL_STRING) *ssl_args = NULL; |
| 894 | char *dane_tlsa_domain = NULL; |
| 895 | STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL; |
| 896 | int dane_ee_no_name = 0; |
| 897 | STACK_OF(X509_CRL) *crls = NULL; |
| 898 | const SSL_METHOD *meth = TLS_client_method(); |
| 899 | const char *CApath = NULL, *CAfile = NULL; |
| 900 | char *cbuf = NULL, *sbuf = NULL; |
| 901 | char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL, *bindstr = NULL; |
| 902 | char *cert_file = NULL, *key_file = NULL, *chain_file = NULL; |
| 903 | char *chCApath = NULL, *chCAfile = NULL, *host = NULL; |
| 904 | char *port = OPENSSL_strdup(PORT); |
| 905 | char *bindhost = NULL, *bindport = NULL; |
| 906 | char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL; |
| 907 | char *ReqCAfile = NULL; |
| 908 | char *sess_in = NULL, *crl_file = NULL, *p; |
| 909 | const char *protohost = NULL; |
| 910 | struct timeval timeout, *timeoutp; |
| 911 | fd_set readfds, writefds; |
| 912 | int noCApath = 0, noCAfile = 0; |
| 913 | int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM; |
| 914 | int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0; |
| 915 | int prexit = 0; |
| 916 | int sdebug = 0; |
| 917 | int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0; |
| 918 | int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0; |
| 919 | int sbuf_len, sbuf_off, cmdletters = 1; |
| 920 | int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0; |
| 921 | int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0; |
| 922 | int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; |
| 923 | #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) |
| 924 | int at_eof = 0; |
| 925 | #endif |
| 926 | int read_buf_len = 0; |
| 927 | int fallback_scsv = 0; |
| 928 | OPTION_CHOICE o; |
| 929 | #ifndef OPENSSL_NO_DTLS |
| 930 | int enable_timeouts = 0; |
| 931 | long socket_mtu = 0; |
| 932 | #endif |
| 933 | #ifndef OPENSSL_NO_ENGINE |
| 934 | ENGINE *ssl_client_engine = NULL; |
| 935 | #endif |
| 936 | ENGINE *e = NULL; |
| 937 | #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) |
| 938 | struct timeval tv; |
| 939 | #endif |
| 940 | const char *servername = NULL; |
| 941 | 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(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(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 | |
| 3185 | static 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 |
| 3403 | static 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 | |
| 3428 | static 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 | */ |
| 3516 | static 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 */ |