Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */ |
| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This package is an SSL implementation written |
| 6 | * by Eric Young (eay@cryptsoft.com). |
| 7 | * The implementation was written so as to conform with Netscapes SSL. |
| 8 | * |
| 9 | * This library is free for commercial and non-commercial use as long as |
| 10 | * the following conditions are aheared to. The following conditions |
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, |
| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| 13 | * included with this distribution is covered by the same copyright terms |
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| 15 | * |
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
| 17 | * the code are not to be removed. |
| 18 | * If this package is used in a product, Eric Young should be given attribution |
| 19 | * as the author of the parts of the library used. |
| 20 | * This can be in the form of a textual message at program startup or |
| 21 | * in documentation (online or textual) provided with the package. |
| 22 | * |
| 23 | * Redistribution and use in source and binary forms, with or without |
| 24 | * modification, are permitted provided that the following conditions |
| 25 | * are met: |
| 26 | * 1. Redistributions of source code must retain the copyright |
| 27 | * notice, this list of conditions and the following disclaimer. |
| 28 | * 2. Redistributions in binary form must reproduce the above copyright |
| 29 | * notice, this list of conditions and the following disclaimer in the |
| 30 | * documentation and/or other materials provided with the distribution. |
| 31 | * 3. All advertising materials mentioning features or use of this software |
| 32 | * must display the following acknowledgement: |
| 33 | * "This product includes cryptographic software written by |
| 34 | * Eric Young (eay@cryptsoft.com)" |
| 35 | * The word 'cryptographic' can be left out if the rouines from the library |
| 36 | * being used are not cryptographic related :-). |
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
| 38 | * the apps directory (application code) you must include an acknowledgement: |
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| 40 | * |
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 51 | * SUCH DAMAGE. |
| 52 | * |
| 53 | * The licence and distribution terms for any publically available version or |
| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
| 55 | * copied and put under another distribution licence |
| 56 | * [including the GNU Public Licence.] |
| 57 | */ |
| 58 | /* ==================================================================== |
| 59 | * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. |
| 60 | * |
| 61 | * Redistribution and use in source and binary forms, with or without |
| 62 | * modification, are permitted provided that the following conditions |
| 63 | * are met: |
| 64 | * |
| 65 | * 1. Redistributions of source code must retain the above copyright |
| 66 | * notice, this list of conditions and the following disclaimer. |
| 67 | * |
| 68 | * 2. Redistributions in binary form must reproduce the above copyright |
| 69 | * notice, this list of conditions and the following disclaimer in |
| 70 | * the documentation and/or other materials provided with the |
| 71 | * distribution. |
| 72 | * |
| 73 | * 3. All advertising materials mentioning features or use of this |
| 74 | * software must display the following acknowledgment: |
| 75 | * "This product includes software developed by the OpenSSL Project |
| 76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
| 77 | * |
| 78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 79 | * endorse or promote products derived from this software without |
| 80 | * prior written permission. For written permission, please contact |
| 81 | * openssl-core@openssl.org. |
| 82 | * |
| 83 | * 5. Products derived from this software may not be called "OpenSSL" |
| 84 | * nor may "OpenSSL" appear in their names without prior written |
| 85 | * permission of the OpenSSL Project. |
| 86 | * |
| 87 | * 6. Redistributions of any form whatsoever must retain the following |
| 88 | * acknowledgment: |
| 89 | * "This product includes software developed by the OpenSSL Project |
| 90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
| 91 | * |
| 92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 103 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 104 | * ==================================================================== |
| 105 | * |
| 106 | * This product includes cryptographic software written by Eric Young |
| 107 | * (eay@cryptsoft.com). This product includes software written by Tim |
| 108 | * Hudson (tjh@cryptsoft.com). |
| 109 | * |
| 110 | */ |
| 111 | |
| 112 | #include <stdio.h> |
| 113 | #include <stdlib.h> |
| 114 | #define USE_SOCKETS |
| 115 | #define NON_MAIN |
| 116 | #include "apps.h" |
| 117 | #undef NON_MAIN |
| 118 | #undef USE_SOCKETS |
| 119 | #include <openssl/err.h> |
| 120 | #include <openssl/rand.h> |
| 121 | #include <openssl/x509.h> |
| 122 | #include <openssl/ssl.h> |
| 123 | #include "s_apps.h" |
| 124 | |
| 125 | #define COOKIE_SECRET_LENGTH 16 |
| 126 | |
| 127 | int verify_depth=0; |
| 128 | int verify_error=X509_V_OK; |
| 129 | int verify_return_error=0; |
| 130 | unsigned char cookie_secret[COOKIE_SECRET_LENGTH]; |
| 131 | int cookie_initialized=0; |
| 132 | |
| 133 | int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx) |
| 134 | { |
| 135 | X509 *err_cert; |
| 136 | int err,depth; |
| 137 | |
| 138 | err_cert=X509_STORE_CTX_get_current_cert(ctx); |
| 139 | err= X509_STORE_CTX_get_error(ctx); |
| 140 | depth= X509_STORE_CTX_get_error_depth(ctx); |
| 141 | |
| 142 | BIO_printf(bio_err,"depth=%d ",depth); |
| 143 | if (err_cert) |
| 144 | { |
| 145 | X509_NAME_print_ex(bio_err, X509_get_subject_name(err_cert), |
| 146 | 0, XN_FLAG_ONELINE); |
| 147 | BIO_puts(bio_err, "\n"); |
| 148 | } |
| 149 | else |
| 150 | BIO_puts(bio_err, "<no cert>\n"); |
| 151 | if (!ok) |
| 152 | { |
| 153 | BIO_printf(bio_err,"verify error:num=%d:%s\n",err, |
| 154 | X509_verify_cert_error_string(err)); |
| 155 | if (verify_depth >= depth) |
| 156 | { |
| 157 | if (!verify_return_error) |
| 158 | ok=1; |
| 159 | verify_error=X509_V_OK; |
| 160 | } |
| 161 | else |
| 162 | { |
| 163 | ok=0; |
| 164 | verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG; |
| 165 | } |
| 166 | } |
| 167 | switch (err) |
| 168 | { |
| 169 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: |
| 170 | BIO_puts(bio_err,"issuer= "); |
| 171 | X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert), |
| 172 | 0, XN_FLAG_ONELINE); |
| 173 | BIO_puts(bio_err, "\n"); |
| 174 | break; |
| 175 | case X509_V_ERR_CERT_NOT_YET_VALID: |
| 176 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: |
| 177 | BIO_printf(bio_err,"notBefore="); |
| 178 | ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert)); |
| 179 | BIO_printf(bio_err,"\n"); |
| 180 | break; |
| 181 | case X509_V_ERR_CERT_HAS_EXPIRED: |
| 182 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: |
| 183 | BIO_printf(bio_err,"notAfter="); |
| 184 | ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert)); |
| 185 | BIO_printf(bio_err,"\n"); |
| 186 | break; |
| 187 | case X509_V_ERR_NO_EXPLICIT_POLICY: |
| 188 | policies_print(bio_err, ctx); |
| 189 | break; |
| 190 | } |
| 191 | if (err == X509_V_OK && ok == 2) |
| 192 | policies_print(bio_err, ctx); |
| 193 | |
| 194 | BIO_printf(bio_err,"verify return:%d\n",ok); |
| 195 | return(ok); |
| 196 | } |
| 197 | |
| 198 | int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file) |
| 199 | { |
| 200 | if (cert_file != NULL) |
| 201 | { |
| 202 | /* |
| 203 | SSL *ssl; |
| 204 | X509 *x509; |
| 205 | */ |
| 206 | |
| 207 | if (SSL_CTX_use_certificate_file(ctx,cert_file, |
| 208 | SSL_FILETYPE_PEM) <= 0) |
| 209 | { |
| 210 | BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file); |
| 211 | ERR_print_errors(bio_err); |
| 212 | return(0); |
| 213 | } |
| 214 | if (key_file == NULL) key_file=cert_file; |
| 215 | if (SSL_CTX_use_PrivateKey_file(ctx,key_file, |
| 216 | SSL_FILETYPE_PEM) <= 0) |
| 217 | { |
| 218 | BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file); |
| 219 | ERR_print_errors(bio_err); |
| 220 | return(0); |
| 221 | } |
| 222 | |
| 223 | /* |
| 224 | In theory this is no longer needed |
| 225 | ssl=SSL_new(ctx); |
| 226 | x509=SSL_get_certificate(ssl); |
| 227 | |
| 228 | if (x509 != NULL) { |
| 229 | EVP_PKEY *pktmp; |
| 230 | pktmp = X509_get_pubkey(x509); |
| 231 | EVP_PKEY_copy_parameters(pktmp, |
| 232 | SSL_get_privatekey(ssl)); |
| 233 | EVP_PKEY_free(pktmp); |
| 234 | } |
| 235 | SSL_free(ssl); |
| 236 | */ |
| 237 | |
| 238 | /* If we are using DSA, we can copy the parameters from |
| 239 | * the private key */ |
| 240 | |
| 241 | |
| 242 | /* Now we know that a key and cert have been set against |
| 243 | * the SSL context */ |
| 244 | if (!SSL_CTX_check_private_key(ctx)) |
| 245 | { |
| 246 | BIO_printf(bio_err,"Private key does not match the certificate public key\n"); |
| 247 | return(0); |
| 248 | } |
| 249 | } |
| 250 | return(1); |
| 251 | } |
| 252 | |
| 253 | int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key) |
| 254 | { |
| 255 | if (cert == NULL) |
| 256 | return 1; |
| 257 | if (SSL_CTX_use_certificate(ctx,cert) <= 0) |
| 258 | { |
| 259 | BIO_printf(bio_err,"error setting certificate\n"); |
| 260 | ERR_print_errors(bio_err); |
| 261 | return 0; |
| 262 | } |
| 263 | if (SSL_CTX_use_PrivateKey(ctx,key) <= 0) |
| 264 | { |
| 265 | BIO_printf(bio_err,"error setting private key\n"); |
| 266 | ERR_print_errors(bio_err); |
| 267 | return 0; |
| 268 | } |
| 269 | |
| 270 | |
| 271 | /* Now we know that a key and cert have been set against |
| 272 | * the SSL context */ |
| 273 | if (!SSL_CTX_check_private_key(ctx)) |
| 274 | { |
| 275 | BIO_printf(bio_err,"Private key does not match the certificate public key\n"); |
| 276 | return 0; |
| 277 | } |
| 278 | return 1; |
| 279 | } |
| 280 | |
| 281 | long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp, |
| 282 | int argi, long argl, long ret) |
| 283 | { |
| 284 | BIO *out; |
| 285 | |
| 286 | out=(BIO *)BIO_get_callback_arg(bio); |
| 287 | if (out == NULL) return(ret); |
| 288 | |
| 289 | if (cmd == (BIO_CB_READ|BIO_CB_RETURN)) |
| 290 | { |
| 291 | BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n", |
| 292 | (void *)bio,argp,(unsigned long)argi,ret,ret); |
| 293 | BIO_dump(out,argp,(int)ret); |
| 294 | return(ret); |
| 295 | } |
| 296 | else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN)) |
| 297 | { |
| 298 | BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n", |
| 299 | (void *)bio,argp,(unsigned long)argi,ret,ret); |
| 300 | BIO_dump(out,argp,(int)ret); |
| 301 | } |
| 302 | return(ret); |
| 303 | } |
| 304 | |
| 305 | void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret) |
| 306 | { |
| 307 | const char *str; |
| 308 | int w; |
| 309 | |
| 310 | w=where& ~SSL_ST_MASK; |
| 311 | |
| 312 | if (w & SSL_ST_CONNECT) str="SSL_connect"; |
| 313 | else if (w & SSL_ST_ACCEPT) str="SSL_accept"; |
| 314 | else str="undefined"; |
| 315 | |
| 316 | if (where & SSL_CB_LOOP) |
| 317 | { |
| 318 | BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s)); |
| 319 | } |
| 320 | else if (where & SSL_CB_ALERT) |
| 321 | { |
| 322 | str=(where & SSL_CB_READ)?"read":"write"; |
| 323 | BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n", |
| 324 | str, |
| 325 | SSL_alert_type_string_long(ret), |
| 326 | SSL_alert_desc_string_long(ret)); |
| 327 | } |
| 328 | else if (where & SSL_CB_EXIT) |
| 329 | { |
| 330 | if (ret == 0) |
| 331 | BIO_printf(bio_err,"%s:failed in %s\n", |
| 332 | str,SSL_state_string_long(s)); |
| 333 | else if (ret < 0) |
| 334 | { |
| 335 | BIO_printf(bio_err,"%s:error in %s\n", |
| 336 | str,SSL_state_string_long(s)); |
| 337 | } |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | |
| 342 | void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg) |
| 343 | { |
| 344 | BIO *bio = arg; |
| 345 | const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= ""; |
| 346 | |
| 347 | str_write_p = write_p ? ">>>" : "<<<"; |
| 348 | |
| 349 | switch (version) |
| 350 | { |
| 351 | case SSL2_VERSION: |
| 352 | str_version = "SSL 2.0"; |
| 353 | break; |
| 354 | case SSL3_VERSION: |
| 355 | str_version = "SSL 3.0 "; |
| 356 | break; |
| 357 | case TLS1_VERSION: |
| 358 | str_version = "TLS 1.0 "; |
| 359 | break; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 360 | case DTLS1_VERSION: |
| 361 | str_version = "DTLS 1.0 "; |
| 362 | break; |
| 363 | case DTLS1_BAD_VER: |
| 364 | str_version = "DTLS 1.0 (bad) "; |
| 365 | break; |
| 366 | default: |
| 367 | str_version = "???"; |
| 368 | } |
| 369 | |
| 370 | if (version == SSL2_VERSION) |
| 371 | { |
| 372 | str_details1 = "???"; |
| 373 | |
| 374 | if (len > 0) |
| 375 | { |
| 376 | switch (((const unsigned char*)buf)[0]) |
| 377 | { |
| 378 | case 0: |
| 379 | str_details1 = ", ERROR:"; |
| 380 | str_details2 = " ???"; |
| 381 | if (len >= 3) |
| 382 | { |
| 383 | unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2]; |
| 384 | |
| 385 | switch (err) |
| 386 | { |
| 387 | case 0x0001: |
| 388 | str_details2 = " NO-CIPHER-ERROR"; |
| 389 | break; |
| 390 | case 0x0002: |
| 391 | str_details2 = " NO-CERTIFICATE-ERROR"; |
| 392 | break; |
| 393 | case 0x0004: |
| 394 | str_details2 = " BAD-CERTIFICATE-ERROR"; |
| 395 | break; |
| 396 | case 0x0006: |
| 397 | str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR"; |
| 398 | break; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | break; |
| 403 | case 1: |
| 404 | str_details1 = ", CLIENT-HELLO"; |
| 405 | break; |
| 406 | case 2: |
| 407 | str_details1 = ", CLIENT-MASTER-KEY"; |
| 408 | break; |
| 409 | case 3: |
| 410 | str_details1 = ", CLIENT-FINISHED"; |
| 411 | break; |
| 412 | case 4: |
| 413 | str_details1 = ", SERVER-HELLO"; |
| 414 | break; |
| 415 | case 5: |
| 416 | str_details1 = ", SERVER-VERIFY"; |
| 417 | break; |
| 418 | case 6: |
| 419 | str_details1 = ", SERVER-FINISHED"; |
| 420 | break; |
| 421 | case 7: |
| 422 | str_details1 = ", REQUEST-CERTIFICATE"; |
| 423 | break; |
| 424 | case 8: |
| 425 | str_details1 = ", CLIENT-CERTIFICATE"; |
| 426 | break; |
| 427 | } |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | if (version == SSL3_VERSION || |
| 432 | version == TLS1_VERSION || |
| 433 | version == DTLS1_VERSION || |
| 434 | version == DTLS1_BAD_VER) |
| 435 | { |
| 436 | switch (content_type) |
| 437 | { |
| 438 | case 20: |
| 439 | str_content_type = "ChangeCipherSpec"; |
| 440 | break; |
| 441 | case 21: |
| 442 | str_content_type = "Alert"; |
| 443 | break; |
| 444 | case 22: |
| 445 | str_content_type = "Handshake"; |
| 446 | break; |
| 447 | } |
| 448 | |
| 449 | if (content_type == 21) /* Alert */ |
| 450 | { |
| 451 | str_details1 = ", ???"; |
| 452 | |
| 453 | if (len == 2) |
| 454 | { |
| 455 | switch (((const unsigned char*)buf)[0]) |
| 456 | { |
| 457 | case 1: |
| 458 | str_details1 = ", warning"; |
| 459 | break; |
| 460 | case 2: |
| 461 | str_details1 = ", fatal"; |
| 462 | break; |
| 463 | } |
| 464 | |
| 465 | str_details2 = " ???"; |
| 466 | switch (((const unsigned char*)buf)[1]) |
| 467 | { |
| 468 | case 0: |
| 469 | str_details2 = " close_notify"; |
| 470 | break; |
| 471 | case 10: |
| 472 | str_details2 = " unexpected_message"; |
| 473 | break; |
| 474 | case 20: |
| 475 | str_details2 = " bad_record_mac"; |
| 476 | break; |
| 477 | case 21: |
| 478 | str_details2 = " decryption_failed"; |
| 479 | break; |
| 480 | case 22: |
| 481 | str_details2 = " record_overflow"; |
| 482 | break; |
| 483 | case 30: |
| 484 | str_details2 = " decompression_failure"; |
| 485 | break; |
| 486 | case 40: |
| 487 | str_details2 = " handshake_failure"; |
| 488 | break; |
| 489 | case 42: |
| 490 | str_details2 = " bad_certificate"; |
| 491 | break; |
| 492 | case 43: |
| 493 | str_details2 = " unsupported_certificate"; |
| 494 | break; |
| 495 | case 44: |
| 496 | str_details2 = " certificate_revoked"; |
| 497 | break; |
| 498 | case 45: |
| 499 | str_details2 = " certificate_expired"; |
| 500 | break; |
| 501 | case 46: |
| 502 | str_details2 = " certificate_unknown"; |
| 503 | break; |
| 504 | case 47: |
| 505 | str_details2 = " illegal_parameter"; |
| 506 | break; |
| 507 | case 48: |
| 508 | str_details2 = " unknown_ca"; |
| 509 | break; |
| 510 | case 49: |
| 511 | str_details2 = " access_denied"; |
| 512 | break; |
| 513 | case 50: |
| 514 | str_details2 = " decode_error"; |
| 515 | break; |
| 516 | case 51: |
| 517 | str_details2 = " decrypt_error"; |
| 518 | break; |
| 519 | case 60: |
| 520 | str_details2 = " export_restriction"; |
| 521 | break; |
| 522 | case 70: |
| 523 | str_details2 = " protocol_version"; |
| 524 | break; |
| 525 | case 71: |
| 526 | str_details2 = " insufficient_security"; |
| 527 | break; |
| 528 | case 80: |
| 529 | str_details2 = " internal_error"; |
| 530 | break; |
| 531 | case 90: |
| 532 | str_details2 = " user_canceled"; |
| 533 | break; |
| 534 | case 100: |
| 535 | str_details2 = " no_renegotiation"; |
| 536 | break; |
| 537 | case 110: |
| 538 | str_details2 = " unsupported_extension"; |
| 539 | break; |
| 540 | case 111: |
| 541 | str_details2 = " certificate_unobtainable"; |
| 542 | break; |
| 543 | case 112: |
| 544 | str_details2 = " unrecognized_name"; |
| 545 | break; |
| 546 | case 113: |
| 547 | str_details2 = " bad_certificate_status_response"; |
| 548 | break; |
| 549 | case 114: |
| 550 | str_details2 = " bad_certificate_hash_value"; |
| 551 | break; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 552 | } |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | if (content_type == 22) /* Handshake */ |
| 557 | { |
| 558 | str_details1 = "???"; |
| 559 | |
| 560 | if (len > 0) |
| 561 | { |
| 562 | switch (((const unsigned char*)buf)[0]) |
| 563 | { |
| 564 | case 0: |
| 565 | str_details1 = ", HelloRequest"; |
| 566 | break; |
| 567 | case 1: |
| 568 | str_details1 = ", ClientHello"; |
| 569 | break; |
| 570 | case 2: |
| 571 | str_details1 = ", ServerHello"; |
| 572 | break; |
| 573 | case 3: |
| 574 | str_details1 = ", HelloVerifyRequest"; |
| 575 | break; |
| 576 | case 11: |
| 577 | str_details1 = ", Certificate"; |
| 578 | break; |
| 579 | case 12: |
| 580 | str_details1 = ", ServerKeyExchange"; |
| 581 | break; |
| 582 | case 13: |
| 583 | str_details1 = ", CertificateRequest"; |
| 584 | break; |
| 585 | case 14: |
| 586 | str_details1 = ", ServerHelloDone"; |
| 587 | break; |
| 588 | case 15: |
| 589 | str_details1 = ", CertificateVerify"; |
| 590 | break; |
| 591 | case 16: |
| 592 | str_details1 = ", ClientKeyExchange"; |
| 593 | break; |
| 594 | case 20: |
| 595 | str_details1 = ", Finished"; |
| 596 | break; |
| 597 | } |
| 598 | } |
| 599 | } |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 600 | } |
| 601 | |
| 602 | BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2); |
| 603 | |
| 604 | if (len > 0) |
| 605 | { |
| 606 | size_t num, i; |
| 607 | |
| 608 | BIO_printf(bio, " "); |
| 609 | num = len; |
| 610 | #if 0 |
| 611 | if (num > 16) |
| 612 | num = 16; |
| 613 | #endif |
| 614 | for (i = 0; i < num; i++) |
| 615 | { |
| 616 | if (i % 16 == 0 && i > 0) |
| 617 | BIO_printf(bio, "\n "); |
| 618 | BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]); |
| 619 | } |
| 620 | if (i < len) |
| 621 | BIO_printf(bio, " ..."); |
| 622 | BIO_printf(bio, "\n"); |
| 623 | } |
| 624 | (void)BIO_flush(bio); |
| 625 | } |
| 626 | |
| 627 | void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type, |
| 628 | unsigned char *data, int len, |
| 629 | void *arg) |
| 630 | { |
| 631 | BIO *bio = arg; |
| 632 | char *extname; |
| 633 | |
| 634 | switch(type) |
| 635 | { |
| 636 | case TLSEXT_TYPE_server_name: |
| 637 | extname = "server name"; |
| 638 | break; |
| 639 | |
| 640 | case TLSEXT_TYPE_max_fragment_length: |
| 641 | extname = "max fragment length"; |
| 642 | break; |
| 643 | |
| 644 | case TLSEXT_TYPE_client_certificate_url: |
| 645 | extname = "client certificate URL"; |
| 646 | break; |
| 647 | |
| 648 | case TLSEXT_TYPE_trusted_ca_keys: |
| 649 | extname = "trusted CA keys"; |
| 650 | break; |
| 651 | |
| 652 | case TLSEXT_TYPE_truncated_hmac: |
| 653 | extname = "truncated HMAC"; |
| 654 | break; |
| 655 | |
| 656 | case TLSEXT_TYPE_status_request: |
| 657 | extname = "status request"; |
| 658 | break; |
| 659 | |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 660 | case TLSEXT_TYPE_elliptic_curves: |
| 661 | extname = "elliptic curves"; |
| 662 | break; |
| 663 | |
| 664 | case TLSEXT_TYPE_ec_point_formats: |
| 665 | extname = "EC point formats"; |
| 666 | break; |
| 667 | |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 668 | case TLSEXT_TYPE_session_ticket: |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 669 | extname = "server ticket"; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 670 | break; |
| 671 | |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 672 | case TLSEXT_TYPE_renegotiate: |
| 673 | extname = "renegotiate"; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 674 | break; |
| 675 | |
| 676 | #ifdef TLSEXT_TYPE_opaque_prf_input |
| 677 | case TLSEXT_TYPE_opaque_prf_input: |
| 678 | extname = "opaque PRF input"; |
| 679 | break; |
| 680 | #endif |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 681 | |
| 682 | default: |
| 683 | extname = "unknown"; |
| 684 | break; |
| 685 | |
| 686 | } |
| 687 | |
| 688 | BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n", |
| 689 | client_server ? "server": "client", |
| 690 | extname, type, len); |
| 691 | BIO_dump(bio, (char *)data, len); |
| 692 | (void)BIO_flush(bio); |
| 693 | } |
| 694 | |
| 695 | int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len) |
| 696 | { |
| 697 | unsigned char *buffer, result[EVP_MAX_MD_SIZE]; |
| 698 | unsigned int length, resultlength; |
| 699 | union { |
| 700 | struct sockaddr sa; |
| 701 | struct sockaddr_in s4; |
| 702 | #if OPENSSL_USE_IPV6 |
| 703 | struct sockaddr_in6 s6; |
| 704 | #endif |
| 705 | } peer; |
| 706 | |
| 707 | /* Initialize a random secret */ |
| 708 | if (!cookie_initialized) |
| 709 | { |
| 710 | if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH)) |
| 711 | { |
| 712 | BIO_printf(bio_err,"error setting random cookie secret\n"); |
| 713 | return 0; |
| 714 | } |
| 715 | cookie_initialized = 1; |
| 716 | } |
| 717 | |
| 718 | /* Read peer information */ |
| 719 | (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer); |
| 720 | |
| 721 | /* Create buffer with peer's address and port */ |
| 722 | length = 0; |
| 723 | switch (peer.sa.sa_family) |
| 724 | { |
| 725 | case AF_INET: |
| 726 | length += sizeof(struct in_addr); |
| 727 | length += sizeof(peer.s4.sin_port); |
| 728 | break; |
| 729 | #if OPENSSL_USE_IPV6 |
| 730 | case AF_INET6: |
| 731 | length += sizeof(struct in6_addr); |
| 732 | length += sizeof(peer.s6.sin6_port); |
| 733 | break; |
| 734 | #endif |
| 735 | default: |
| 736 | OPENSSL_assert(0); |
| 737 | break; |
| 738 | } |
| 739 | buffer = OPENSSL_malloc(length); |
| 740 | |
| 741 | if (buffer == NULL) |
| 742 | { |
| 743 | BIO_printf(bio_err,"out of memory\n"); |
| 744 | return 0; |
| 745 | } |
| 746 | |
| 747 | switch (peer.sa.sa_family) |
| 748 | { |
| 749 | case AF_INET: |
| 750 | memcpy(buffer, |
| 751 | &peer.s4.sin_port, |
| 752 | sizeof(peer.s4.sin_port)); |
| 753 | memcpy(buffer + sizeof(peer.s4.sin_port), |
| 754 | &peer.s4.sin_addr, |
| 755 | sizeof(struct in_addr)); |
| 756 | break; |
| 757 | #if OPENSSL_USE_IPV6 |
| 758 | case AF_INET6: |
| 759 | memcpy(buffer, |
| 760 | &peer.s6.sin6_port, |
| 761 | sizeof(peer.s6.sin6_port)); |
| 762 | memcpy(buffer + sizeof(peer.s6.sin6_port), |
| 763 | &peer.s6.sin6_addr, |
| 764 | sizeof(struct in6_addr)); |
| 765 | break; |
| 766 | #endif |
| 767 | default: |
| 768 | OPENSSL_assert(0); |
| 769 | break; |
| 770 | } |
| 771 | |
| 772 | /* Calculate HMAC of buffer using the secret */ |
| 773 | HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH, |
| 774 | buffer, length, result, &resultlength); |
| 775 | OPENSSL_free(buffer); |
| 776 | |
| 777 | memcpy(cookie, result, resultlength); |
| 778 | *cookie_len = resultlength; |
| 779 | |
| 780 | return 1; |
| 781 | } |
| 782 | |
| 783 | int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len) |
| 784 | { |
| 785 | unsigned char *buffer, result[EVP_MAX_MD_SIZE]; |
| 786 | unsigned int length, resultlength; |
| 787 | union { |
| 788 | struct sockaddr sa; |
| 789 | struct sockaddr_in s4; |
| 790 | #if OPENSSL_USE_IPV6 |
| 791 | struct sockaddr_in6 s6; |
| 792 | #endif |
| 793 | } peer; |
| 794 | |
| 795 | /* If secret isn't initialized yet, the cookie can't be valid */ |
| 796 | if (!cookie_initialized) |
| 797 | return 0; |
| 798 | |
| 799 | /* Read peer information */ |
| 800 | (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer); |
| 801 | |
| 802 | /* Create buffer with peer's address and port */ |
| 803 | length = 0; |
| 804 | switch (peer.sa.sa_family) |
| 805 | { |
| 806 | case AF_INET: |
| 807 | length += sizeof(struct in_addr); |
| 808 | length += sizeof(peer.s4.sin_port); |
| 809 | break; |
| 810 | #if OPENSSL_USE_IPV6 |
| 811 | case AF_INET6: |
| 812 | length += sizeof(struct in6_addr); |
| 813 | length += sizeof(peer.s6.sin6_port); |
| 814 | break; |
| 815 | #endif |
| 816 | default: |
| 817 | OPENSSL_assert(0); |
| 818 | break; |
| 819 | } |
| 820 | buffer = OPENSSL_malloc(length); |
| 821 | |
| 822 | if (buffer == NULL) |
| 823 | { |
| 824 | BIO_printf(bio_err,"out of memory\n"); |
| 825 | return 0; |
| 826 | } |
| 827 | |
| 828 | switch (peer.sa.sa_family) |
| 829 | { |
| 830 | case AF_INET: |
| 831 | memcpy(buffer, |
| 832 | &peer.s4.sin_port, |
| 833 | sizeof(peer.s4.sin_port)); |
| 834 | memcpy(buffer + sizeof(peer.s4.sin_port), |
| 835 | &peer.s4.sin_addr, |
| 836 | sizeof(struct in_addr)); |
| 837 | break; |
| 838 | #if OPENSSL_USE_IPV6 |
| 839 | case AF_INET6: |
| 840 | memcpy(buffer, |
| 841 | &peer.s6.sin6_port, |
| 842 | sizeof(peer.s6.sin6_port)); |
| 843 | memcpy(buffer + sizeof(peer.s6.sin6_port), |
| 844 | &peer.s6.sin6_addr, |
| 845 | sizeof(struct in6_addr)); |
| 846 | break; |
| 847 | #endif |
| 848 | default: |
| 849 | OPENSSL_assert(0); |
| 850 | break; |
| 851 | } |
| 852 | |
| 853 | /* Calculate HMAC of buffer using the secret */ |
| 854 | HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH, |
| 855 | buffer, length, result, &resultlength); |
| 856 | OPENSSL_free(buffer); |
| 857 | |
| 858 | if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0) |
| 859 | return 1; |
| 860 | |
| 861 | return 0; |
| 862 | } |