cms.c revision 296341
1/* apps/cms.c */ 2/* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 4 * project. 5 */ 6/* ==================================================================== 7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * licensing@OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 */ 54 55/* CMS utility function */ 56 57#include <stdio.h> 58#include <string.h> 59#include "apps.h" 60 61#ifndef OPENSSL_NO_CMS 62 63# include <openssl/crypto.h> 64# include <openssl/pem.h> 65# include <openssl/err.h> 66# include <openssl/x509_vfy.h> 67# include <openssl/x509v3.h> 68# include <openssl/cms.h> 69 70# undef PROG 71# define PROG cms_main 72static int save_certs(char *signerfile, STACK_OF(X509) *signers); 73static int cms_cb(int ok, X509_STORE_CTX *ctx); 74static void receipt_request_print(BIO *out, CMS_ContentInfo *cms); 75static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) 76 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING) 77 *rr_from); 78 79# define SMIME_OP 0x10 80# define SMIME_IP 0x20 81# define SMIME_SIGNERS 0x40 82# define SMIME_ENCRYPT (1 | SMIME_OP) 83# define SMIME_DECRYPT (2 | SMIME_IP) 84# define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS) 85# define SMIME_VERIFY (4 | SMIME_IP) 86# define SMIME_CMSOUT (5 | SMIME_IP | SMIME_OP) 87# define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS) 88# define SMIME_DATAOUT (7 | SMIME_IP) 89# define SMIME_DATA_CREATE (8 | SMIME_OP) 90# define SMIME_DIGEST_VERIFY (9 | SMIME_IP) 91# define SMIME_DIGEST_CREATE (10 | SMIME_OP) 92# define SMIME_UNCOMPRESS (11 | SMIME_IP) 93# define SMIME_COMPRESS (12 | SMIME_OP) 94# define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP) 95# define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP) 96# define SMIME_SIGN_RECEIPT (15 | SMIME_IP | SMIME_OP) 97# define SMIME_VERIFY_RECEIPT (16 | SMIME_IP) 98 99int verify_err = 0; 100 101int MAIN(int, char **); 102 103int MAIN(int argc, char **argv) 104{ 105 ENGINE *e = NULL; 106 int operation = 0; 107 int ret = 0; 108 char **args; 109 const char *inmode = "r", *outmode = "w"; 110 char *infile = NULL, *outfile = NULL, *rctfile = NULL; 111 char *signerfile = NULL, *recipfile = NULL; 112 STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL; 113 char *certfile = NULL, *keyfile = NULL, *contfile = NULL; 114 char *certsoutfile = NULL; 115 const EVP_CIPHER *cipher = NULL; 116 CMS_ContentInfo *cms = NULL, *rcms = NULL; 117 X509_STORE *store = NULL; 118 X509 *cert = NULL, *recip = NULL, *signer = NULL; 119 EVP_PKEY *key = NULL; 120 STACK_OF(X509) *encerts = NULL, *other = NULL; 121 BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL; 122 int badarg = 0; 123 int flags = CMS_DETACHED, noout = 0, print = 0; 124 int verify_retcode = 0; 125 int rr_print = 0, rr_allorfirst = -1; 126 STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL; 127 CMS_ReceiptRequest *rr = NULL; 128 char *to = NULL, *from = NULL, *subject = NULL; 129 char *CAfile = NULL, *CApath = NULL; 130 char *passargin = NULL, *passin = NULL; 131 char *inrand = NULL; 132 int need_rand = 0; 133 const EVP_MD *sign_md = NULL; 134 int informat = FORMAT_SMIME, outformat = FORMAT_SMIME; 135 int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM; 136# ifndef OPENSSL_NO_ENGINE 137 char *engine = NULL; 138# endif 139 unsigned char *secret_key = NULL, *secret_keyid = NULL; 140 unsigned char *pwri_pass = NULL, *pwri_tmp = NULL; 141 size_t secret_keylen = 0, secret_keyidlen = 0; 142 143 ASN1_OBJECT *econtent_type = NULL; 144 145 X509_VERIFY_PARAM *vpm = NULL; 146 147 args = argv + 1; 148 ret = 1; 149 150 apps_startup(); 151 152 if (bio_err == NULL) { 153 if ((bio_err = BIO_new(BIO_s_file())) != NULL) 154 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); 155 } 156 157 if (!load_config(bio_err, NULL)) 158 goto end; 159 160 while (!badarg && *args && *args[0] == '-') { 161 if (!strcmp(*args, "-encrypt")) 162 operation = SMIME_ENCRYPT; 163 else if (!strcmp(*args, "-decrypt")) 164 operation = SMIME_DECRYPT; 165 else if (!strcmp(*args, "-sign")) 166 operation = SMIME_SIGN; 167 else if (!strcmp(*args, "-sign_receipt")) 168 operation = SMIME_SIGN_RECEIPT; 169 else if (!strcmp(*args, "-resign")) 170 operation = SMIME_RESIGN; 171 else if (!strcmp(*args, "-verify")) 172 operation = SMIME_VERIFY; 173 else if (!strcmp(*args, "-verify_retcode")) 174 verify_retcode = 1; 175 else if (!strcmp(*args, "-verify_receipt")) { 176 operation = SMIME_VERIFY_RECEIPT; 177 if (!args[1]) 178 goto argerr; 179 args++; 180 rctfile = *args; 181 } else if (!strcmp(*args, "-cmsout")) 182 operation = SMIME_CMSOUT; 183 else if (!strcmp(*args, "-data_out")) 184 operation = SMIME_DATAOUT; 185 else if (!strcmp(*args, "-data_create")) 186 operation = SMIME_DATA_CREATE; 187 else if (!strcmp(*args, "-digest_verify")) 188 operation = SMIME_DIGEST_VERIFY; 189 else if (!strcmp(*args, "-digest_create")) 190 operation = SMIME_DIGEST_CREATE; 191 else if (!strcmp(*args, "-compress")) 192 operation = SMIME_COMPRESS; 193 else if (!strcmp(*args, "-uncompress")) 194 operation = SMIME_UNCOMPRESS; 195 else if (!strcmp(*args, "-EncryptedData_decrypt")) 196 operation = SMIME_ENCRYPTED_DECRYPT; 197 else if (!strcmp(*args, "-EncryptedData_encrypt")) 198 operation = SMIME_ENCRYPTED_ENCRYPT; 199# ifndef OPENSSL_NO_DES 200 else if (!strcmp(*args, "-des3")) 201 cipher = EVP_des_ede3_cbc(); 202 else if (!strcmp(*args, "-des")) 203 cipher = EVP_des_cbc(); 204# endif 205# ifndef OPENSSL_NO_SEED 206 else if (!strcmp(*args, "-seed")) 207 cipher = EVP_seed_cbc(); 208# endif 209# ifndef OPENSSL_NO_RC2 210 else if (!strcmp(*args, "-rc2-40")) 211 cipher = EVP_rc2_40_cbc(); 212 else if (!strcmp(*args, "-rc2-128")) 213 cipher = EVP_rc2_cbc(); 214 else if (!strcmp(*args, "-rc2-64")) 215 cipher = EVP_rc2_64_cbc(); 216# endif 217# ifndef OPENSSL_NO_AES 218 else if (!strcmp(*args, "-aes128")) 219 cipher = EVP_aes_128_cbc(); 220 else if (!strcmp(*args, "-aes192")) 221 cipher = EVP_aes_192_cbc(); 222 else if (!strcmp(*args, "-aes256")) 223 cipher = EVP_aes_256_cbc(); 224# endif 225# ifndef OPENSSL_NO_CAMELLIA 226 else if (!strcmp(*args, "-camellia128")) 227 cipher = EVP_camellia_128_cbc(); 228 else if (!strcmp(*args, "-camellia192")) 229 cipher = EVP_camellia_192_cbc(); 230 else if (!strcmp(*args, "-camellia256")) 231 cipher = EVP_camellia_256_cbc(); 232# endif 233 else if (!strcmp(*args, "-debug_decrypt")) 234 flags |= CMS_DEBUG_DECRYPT; 235 else if (!strcmp(*args, "-text")) 236 flags |= CMS_TEXT; 237 else if (!strcmp(*args, "-nointern")) 238 flags |= CMS_NOINTERN; 239 else if (!strcmp(*args, "-noverify") 240 || !strcmp(*args, "-no_signer_cert_verify")) 241 flags |= CMS_NO_SIGNER_CERT_VERIFY; 242 else if (!strcmp(*args, "-nocerts")) 243 flags |= CMS_NOCERTS; 244 else if (!strcmp(*args, "-noattr")) 245 flags |= CMS_NOATTR; 246 else if (!strcmp(*args, "-nodetach")) 247 flags &= ~CMS_DETACHED; 248 else if (!strcmp(*args, "-nosmimecap")) 249 flags |= CMS_NOSMIMECAP; 250 else if (!strcmp(*args, "-binary")) 251 flags |= CMS_BINARY; 252 else if (!strcmp(*args, "-keyid")) 253 flags |= CMS_USE_KEYID; 254 else if (!strcmp(*args, "-nosigs")) 255 flags |= CMS_NOSIGS; 256 else if (!strcmp(*args, "-no_content_verify")) 257 flags |= CMS_NO_CONTENT_VERIFY; 258 else if (!strcmp(*args, "-no_attr_verify")) 259 flags |= CMS_NO_ATTR_VERIFY; 260 else if (!strcmp(*args, "-stream")) 261 flags |= CMS_STREAM; 262 else if (!strcmp(*args, "-indef")) 263 flags |= CMS_STREAM; 264 else if (!strcmp(*args, "-noindef")) 265 flags &= ~CMS_STREAM; 266 else if (!strcmp(*args, "-nooldmime")) 267 flags |= CMS_NOOLDMIMETYPE; 268 else if (!strcmp(*args, "-crlfeol")) 269 flags |= CMS_CRLFEOL; 270 else if (!strcmp(*args, "-noout")) 271 noout = 1; 272 else if (!strcmp(*args, "-receipt_request_print")) 273 rr_print = 1; 274 else if (!strcmp(*args, "-receipt_request_all")) 275 rr_allorfirst = 0; 276 else if (!strcmp(*args, "-receipt_request_first")) 277 rr_allorfirst = 1; 278 else if (!strcmp(*args, "-receipt_request_from")) { 279 if (!args[1]) 280 goto argerr; 281 args++; 282 if (!rr_from) 283 rr_from = sk_OPENSSL_STRING_new_null(); 284 sk_OPENSSL_STRING_push(rr_from, *args); 285 } else if (!strcmp(*args, "-receipt_request_to")) { 286 if (!args[1]) 287 goto argerr; 288 args++; 289 if (!rr_to) 290 rr_to = sk_OPENSSL_STRING_new_null(); 291 sk_OPENSSL_STRING_push(rr_to, *args); 292 } else if (!strcmp(*args, "-print")) { 293 noout = 1; 294 print = 1; 295 } else if (!strcmp(*args, "-secretkey")) { 296 long ltmp; 297 if (!args[1]) 298 goto argerr; 299 args++; 300 secret_key = string_to_hex(*args, <mp); 301 if (!secret_key) { 302 BIO_printf(bio_err, "Invalid key %s\n", *args); 303 goto argerr; 304 } 305 secret_keylen = (size_t)ltmp; 306 } else if (!strcmp(*args, "-secretkeyid")) { 307 long ltmp; 308 if (!args[1]) 309 goto argerr; 310 args++; 311 secret_keyid = string_to_hex(*args, <mp); 312 if (!secret_keyid) { 313 BIO_printf(bio_err, "Invalid id %s\n", *args); 314 goto argerr; 315 } 316 secret_keyidlen = (size_t)ltmp; 317 } else if (!strcmp(*args, "-pwri_password")) { 318 if (!args[1]) 319 goto argerr; 320 args++; 321 pwri_pass = (unsigned char *)*args; 322 } else if (!strcmp(*args, "-econtent_type")) { 323 if (!args[1]) 324 goto argerr; 325 args++; 326 econtent_type = OBJ_txt2obj(*args, 0); 327 if (!econtent_type) { 328 BIO_printf(bio_err, "Invalid OID %s\n", *args); 329 goto argerr; 330 } 331 } else if (!strcmp(*args, "-rand")) { 332 if (!args[1]) 333 goto argerr; 334 args++; 335 inrand = *args; 336 need_rand = 1; 337 } 338# ifndef OPENSSL_NO_ENGINE 339 else if (!strcmp(*args, "-engine")) { 340 if (!args[1]) 341 goto argerr; 342 engine = *++args; 343 } 344# endif 345 else if (!strcmp(*args, "-passin")) { 346 if (!args[1]) 347 goto argerr; 348 passargin = *++args; 349 } else if (!strcmp(*args, "-to")) { 350 if (!args[1]) 351 goto argerr; 352 to = *++args; 353 } else if (!strcmp(*args, "-from")) { 354 if (!args[1]) 355 goto argerr; 356 from = *++args; 357 } else if (!strcmp(*args, "-subject")) { 358 if (!args[1]) 359 goto argerr; 360 subject = *++args; 361 } else if (!strcmp(*args, "-signer")) { 362 if (!args[1]) 363 goto argerr; 364 /* If previous -signer argument add signer to list */ 365 366 if (signerfile) { 367 if (!sksigners) 368 sksigners = sk_OPENSSL_STRING_new_null(); 369 sk_OPENSSL_STRING_push(sksigners, signerfile); 370 if (!keyfile) 371 keyfile = signerfile; 372 if (!skkeys) 373 skkeys = sk_OPENSSL_STRING_new_null(); 374 sk_OPENSSL_STRING_push(skkeys, keyfile); 375 keyfile = NULL; 376 } 377 signerfile = *++args; 378 } else if (!strcmp(*args, "-recip")) { 379 if (!args[1]) 380 goto argerr; 381 recipfile = *++args; 382 } else if (!strcmp(*args, "-certsout")) { 383 if (!args[1]) 384 goto argerr; 385 certsoutfile = *++args; 386 } else if (!strcmp(*args, "-md")) { 387 if (!args[1]) 388 goto argerr; 389 sign_md = EVP_get_digestbyname(*++args); 390 if (sign_md == NULL) { 391 BIO_printf(bio_err, "Unknown digest %s\n", *args); 392 goto argerr; 393 } 394 } else if (!strcmp(*args, "-inkey")) { 395 if (!args[1]) 396 goto argerr; 397 /* If previous -inkey arument add signer to list */ 398 if (keyfile) { 399 if (!signerfile) { 400 BIO_puts(bio_err, "Illegal -inkey without -signer\n"); 401 goto argerr; 402 } 403 if (!sksigners) 404 sksigners = sk_OPENSSL_STRING_new_null(); 405 sk_OPENSSL_STRING_push(sksigners, signerfile); 406 signerfile = NULL; 407 if (!skkeys) 408 skkeys = sk_OPENSSL_STRING_new_null(); 409 sk_OPENSSL_STRING_push(skkeys, keyfile); 410 } 411 keyfile = *++args; 412 } else if (!strcmp(*args, "-keyform")) { 413 if (!args[1]) 414 goto argerr; 415 keyform = str2fmt(*++args); 416 } else if (!strcmp(*args, "-rctform")) { 417 if (!args[1]) 418 goto argerr; 419 rctformat = str2fmt(*++args); 420 } else if (!strcmp(*args, "-certfile")) { 421 if (!args[1]) 422 goto argerr; 423 certfile = *++args; 424 } else if (!strcmp(*args, "-CAfile")) { 425 if (!args[1]) 426 goto argerr; 427 CAfile = *++args; 428 } else if (!strcmp(*args, "-CApath")) { 429 if (!args[1]) 430 goto argerr; 431 CApath = *++args; 432 } else if (!strcmp(*args, "-in")) { 433 if (!args[1]) 434 goto argerr; 435 infile = *++args; 436 } else if (!strcmp(*args, "-inform")) { 437 if (!args[1]) 438 goto argerr; 439 informat = str2fmt(*++args); 440 } else if (!strcmp(*args, "-outform")) { 441 if (!args[1]) 442 goto argerr; 443 outformat = str2fmt(*++args); 444 } else if (!strcmp(*args, "-out")) { 445 if (!args[1]) 446 goto argerr; 447 outfile = *++args; 448 } else if (!strcmp(*args, "-content")) { 449 if (!args[1]) 450 goto argerr; 451 contfile = *++args; 452 } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm)) 453 continue; 454 else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL) 455 badarg = 1; 456 args++; 457 } 458 459 if (((rr_allorfirst != -1) || rr_from) && !rr_to) { 460 BIO_puts(bio_err, "No Signed Receipts Recipients\n"); 461 goto argerr; 462 } 463 464 if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) { 465 BIO_puts(bio_err, "Signed receipts only allowed with -sign\n"); 466 goto argerr; 467 } 468 if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) { 469 BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); 470 goto argerr; 471 } 472 473 if (operation & SMIME_SIGNERS) { 474 if (keyfile && !signerfile) { 475 BIO_puts(bio_err, "Illegal -inkey without -signer\n"); 476 goto argerr; 477 } 478 /* Check to see if any final signer needs to be appended */ 479 if (signerfile) { 480 if (!sksigners) 481 sksigners = sk_OPENSSL_STRING_new_null(); 482 sk_OPENSSL_STRING_push(sksigners, signerfile); 483 if (!skkeys) 484 skkeys = sk_OPENSSL_STRING_new_null(); 485 if (!keyfile) 486 keyfile = signerfile; 487 sk_OPENSSL_STRING_push(skkeys, keyfile); 488 } 489 if (!sksigners) { 490 BIO_printf(bio_err, "No signer certificate specified\n"); 491 badarg = 1; 492 } 493 signerfile = NULL; 494 keyfile = NULL; 495 need_rand = 1; 496 } 497 498 else if (operation == SMIME_DECRYPT) { 499 if (!recipfile && !keyfile && !secret_key && !pwri_pass) { 500 BIO_printf(bio_err, 501 "No recipient certificate or key specified\n"); 502 badarg = 1; 503 } 504 } else if (operation == SMIME_ENCRYPT) { 505 if (!*args && !secret_key && !pwri_pass) { 506 BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); 507 badarg = 1; 508 } 509 need_rand = 1; 510 } else if (!operation) 511 badarg = 1; 512 513 if (badarg) { 514 argerr: 515 BIO_printf(bio_err, "Usage cms [options] cert.pem ...\n"); 516 BIO_printf(bio_err, "where options are\n"); 517 BIO_printf(bio_err, "-encrypt encrypt message\n"); 518 BIO_printf(bio_err, "-decrypt decrypt encrypted message\n"); 519 BIO_printf(bio_err, "-sign sign message\n"); 520 BIO_printf(bio_err, "-verify verify signed message\n"); 521 BIO_printf(bio_err, "-cmsout output CMS structure\n"); 522# ifndef OPENSSL_NO_DES 523 BIO_printf(bio_err, "-des3 encrypt with triple DES\n"); 524 BIO_printf(bio_err, "-des encrypt with DES\n"); 525# endif 526# ifndef OPENSSL_NO_SEED 527 BIO_printf(bio_err, "-seed encrypt with SEED\n"); 528# endif 529# ifndef OPENSSL_NO_RC2 530 BIO_printf(bio_err, "-rc2-40 encrypt with RC2-40 (default)\n"); 531 BIO_printf(bio_err, "-rc2-64 encrypt with RC2-64\n"); 532 BIO_printf(bio_err, "-rc2-128 encrypt with RC2-128\n"); 533# endif 534# ifndef OPENSSL_NO_AES 535 BIO_printf(bio_err, "-aes128, -aes192, -aes256\n"); 536 BIO_printf(bio_err, 537 " encrypt PEM output with cbc aes\n"); 538# endif 539# ifndef OPENSSL_NO_CAMELLIA 540 BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n"); 541 BIO_printf(bio_err, 542 " encrypt PEM output with cbc camellia\n"); 543# endif 544 BIO_printf(bio_err, 545 "-nointern don't search certificates in message for signer\n"); 546 BIO_printf(bio_err, 547 "-nosigs don't verify message signature\n"); 548 BIO_printf(bio_err, 549 "-noverify don't verify signers certificate\n"); 550 BIO_printf(bio_err, 551 "-nocerts don't include signers certificate when signing\n"); 552 BIO_printf(bio_err, "-nodetach use opaque signing\n"); 553 BIO_printf(bio_err, 554 "-noattr don't include any signed attributes\n"); 555 BIO_printf(bio_err, 556 "-binary don't translate message to text\n"); 557 BIO_printf(bio_err, "-certfile file other certificates file\n"); 558 BIO_printf(bio_err, "-certsout file certificate output file\n"); 559 BIO_printf(bio_err, "-signer file signer certificate file\n"); 560 BIO_printf(bio_err, 561 "-recip file recipient certificate file for decryption\n"); 562 BIO_printf(bio_err, "-keyid use subject key identifier\n"); 563 BIO_printf(bio_err, "-in file input file\n"); 564 BIO_printf(bio_err, 565 "-inform arg input format SMIME (default), PEM or DER\n"); 566 BIO_printf(bio_err, 567 "-inkey file input private key (if not signer or recipient)\n"); 568 BIO_printf(bio_err, 569 "-keyform arg input private key format (PEM or ENGINE)\n"); 570 BIO_printf(bio_err, "-out file output file\n"); 571 BIO_printf(bio_err, 572 "-outform arg output format SMIME (default), PEM or DER\n"); 573 BIO_printf(bio_err, 574 "-content file supply or override content for detached signature\n"); 575 BIO_printf(bio_err, "-to addr to address\n"); 576 BIO_printf(bio_err, "-from ad from address\n"); 577 BIO_printf(bio_err, "-subject s subject\n"); 578 BIO_printf(bio_err, 579 "-text include or delete text MIME headers\n"); 580 BIO_printf(bio_err, 581 "-CApath dir trusted certificates directory\n"); 582 BIO_printf(bio_err, "-CAfile file trusted certificates file\n"); 583 BIO_printf(bio_err, 584 "-no_alt_chains only ever use the first certificate chain found\n"); 585 BIO_printf(bio_err, 586 "-crl_check check revocation status of signer's certificate using CRLs\n"); 587 BIO_printf(bio_err, 588 "-crl_check_all check revocation status of signer's certificate chain using CRLs\n"); 589# ifndef OPENSSL_NO_ENGINE 590 BIO_printf(bio_err, 591 "-engine e use engine e, possibly a hardware device.\n"); 592# endif 593 BIO_printf(bio_err, "-passin arg input file pass phrase source\n"); 594 BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, 595 LIST_SEPARATOR_CHAR); 596 BIO_printf(bio_err, 597 " load the file (or the files in the directory) into\n"); 598 BIO_printf(bio_err, " the random number generator\n"); 599 BIO_printf(bio_err, 600 "cert.pem recipient certificate(s) for encryption\n"); 601 goto end; 602 } 603# ifndef OPENSSL_NO_ENGINE 604 e = setup_engine(bio_err, engine, 0); 605# endif 606 607 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { 608 BIO_printf(bio_err, "Error getting password\n"); 609 goto end; 610 } 611 612 if (need_rand) { 613 app_RAND_load_file(NULL, bio_err, (inrand != NULL)); 614 if (inrand != NULL) 615 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 616 app_RAND_load_files(inrand)); 617 } 618 619 ret = 2; 620 621 if (!(operation & SMIME_SIGNERS)) 622 flags &= ~CMS_DETACHED; 623 624 if (operation & SMIME_OP) { 625 if (outformat == FORMAT_ASN1) 626 outmode = "wb"; 627 } else { 628 if (flags & CMS_BINARY) 629 outmode = "wb"; 630 } 631 632 if (operation & SMIME_IP) { 633 if (informat == FORMAT_ASN1) 634 inmode = "rb"; 635 } else { 636 if (flags & CMS_BINARY) 637 inmode = "rb"; 638 } 639 640 if (operation == SMIME_ENCRYPT) { 641 if (!cipher) { 642# ifndef OPENSSL_NO_DES 643 cipher = EVP_des_ede3_cbc(); 644# else 645 BIO_printf(bio_err, "No cipher selected\n"); 646 goto end; 647# endif 648 } 649 650 if (secret_key && !secret_keyid) { 651 BIO_printf(bio_err, "No secret key id\n"); 652 goto end; 653 } 654 655 if (*args) 656 encerts = sk_X509_new_null(); 657 while (*args) { 658 if (!(cert = load_cert(bio_err, *args, FORMAT_PEM, 659 NULL, e, "recipient certificate file"))) 660 goto end; 661 sk_X509_push(encerts, cert); 662 cert = NULL; 663 args++; 664 } 665 } 666 667 if (certfile) { 668 if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL, 669 e, "certificate file"))) { 670 ERR_print_errors(bio_err); 671 goto end; 672 } 673 } 674 675 if (recipfile && (operation == SMIME_DECRYPT)) { 676 if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL, 677 e, "recipient certificate file"))) { 678 ERR_print_errors(bio_err); 679 goto end; 680 } 681 } 682 683 if (operation == SMIME_SIGN_RECEIPT) { 684 if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL, 685 e, "receipt signer certificate file"))) { 686 ERR_print_errors(bio_err); 687 goto end; 688 } 689 } 690 691 if (operation == SMIME_DECRYPT) { 692 if (!keyfile) 693 keyfile = recipfile; 694 } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) { 695 if (!keyfile) 696 keyfile = signerfile; 697 } else 698 keyfile = NULL; 699 700 if (keyfile) { 701 key = load_key(bio_err, keyfile, keyform, 0, passin, e, 702 "signing key file"); 703 if (!key) 704 goto end; 705 } 706 707 if (infile) { 708 if (!(in = BIO_new_file(infile, inmode))) { 709 BIO_printf(bio_err, "Can't open input file %s\n", infile); 710 goto end; 711 } 712 } else 713 in = BIO_new_fp(stdin, BIO_NOCLOSE); 714 715 if (operation & SMIME_IP) { 716 if (informat == FORMAT_SMIME) 717 cms = SMIME_read_CMS(in, &indata); 718 else if (informat == FORMAT_PEM) 719 cms = PEM_read_bio_CMS(in, NULL, NULL, NULL); 720 else if (informat == FORMAT_ASN1) 721 cms = d2i_CMS_bio(in, NULL); 722 else { 723 BIO_printf(bio_err, "Bad input format for CMS file\n"); 724 goto end; 725 } 726 727 if (!cms) { 728 BIO_printf(bio_err, "Error reading S/MIME message\n"); 729 goto end; 730 } 731 if (contfile) { 732 BIO_free(indata); 733 if (!(indata = BIO_new_file(contfile, "rb"))) { 734 BIO_printf(bio_err, "Can't read content file %s\n", contfile); 735 goto end; 736 } 737 } 738 if (certsoutfile) { 739 STACK_OF(X509) *allcerts; 740 allcerts = CMS_get1_certs(cms); 741 if (!save_certs(certsoutfile, allcerts)) { 742 BIO_printf(bio_err, 743 "Error writing certs to %s\n", certsoutfile); 744 ret = 5; 745 goto end; 746 } 747 sk_X509_pop_free(allcerts, X509_free); 748 } 749 } 750 751 if (rctfile) { 752 char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r"; 753 if (!(rctin = BIO_new_file(rctfile, rctmode))) { 754 BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile); 755 goto end; 756 } 757 758 if (rctformat == FORMAT_SMIME) 759 rcms = SMIME_read_CMS(rctin, NULL); 760 else if (rctformat == FORMAT_PEM) 761 rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL); 762 else if (rctformat == FORMAT_ASN1) 763 rcms = d2i_CMS_bio(rctin, NULL); 764 else { 765 BIO_printf(bio_err, "Bad input format for receipt\n"); 766 goto end; 767 } 768 769 if (!rcms) { 770 BIO_printf(bio_err, "Error reading receipt\n"); 771 goto end; 772 } 773 } 774 775 if (outfile) { 776 if (!(out = BIO_new_file(outfile, outmode))) { 777 BIO_printf(bio_err, "Can't open output file %s\n", outfile); 778 goto end; 779 } 780 } else { 781 out = BIO_new_fp(stdout, BIO_NOCLOSE); 782# ifdef OPENSSL_SYS_VMS 783 { 784 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 785 out = BIO_push(tmpbio, out); 786 } 787# endif 788 } 789 790 if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) { 791 if (!(store = setup_verify(bio_err, CAfile, CApath))) 792 goto end; 793 X509_STORE_set_verify_cb(store, cms_cb); 794 if (vpm) 795 X509_STORE_set1_param(store, vpm); 796 } 797 798 ret = 3; 799 800 if (operation == SMIME_DATA_CREATE) { 801 cms = CMS_data_create(in, flags); 802 } else if (operation == SMIME_DIGEST_CREATE) { 803 cms = CMS_digest_create(in, sign_md, flags); 804 } else if (operation == SMIME_COMPRESS) { 805 cms = CMS_compress(in, -1, flags); 806 } else if (operation == SMIME_ENCRYPT) { 807 flags |= CMS_PARTIAL; 808 cms = CMS_encrypt(encerts, in, cipher, flags); 809 if (!cms) 810 goto end; 811 if (secret_key) { 812 if (!CMS_add0_recipient_key(cms, NID_undef, 813 secret_key, secret_keylen, 814 secret_keyid, secret_keyidlen, 815 NULL, NULL, NULL)) 816 goto end; 817 /* NULL these because call absorbs them */ 818 secret_key = NULL; 819 secret_keyid = NULL; 820 } 821 if (pwri_pass) { 822 pwri_tmp = (unsigned char *)BUF_strdup((char *)pwri_pass); 823 if (!pwri_tmp) 824 goto end; 825 if (!CMS_add0_recipient_password(cms, 826 -1, NID_undef, NID_undef, 827 pwri_tmp, -1, NULL)) 828 goto end; 829 pwri_tmp = NULL; 830 } 831 if (!(flags & CMS_STREAM)) { 832 if (!CMS_final(cms, in, NULL, flags)) 833 goto end; 834 } 835 } else if (operation == SMIME_ENCRYPTED_ENCRYPT) { 836 cms = CMS_EncryptedData_encrypt(in, cipher, 837 secret_key, secret_keylen, flags); 838 839 } else if (operation == SMIME_SIGN_RECEIPT) { 840 CMS_ContentInfo *srcms = NULL; 841 STACK_OF(CMS_SignerInfo) *sis; 842 CMS_SignerInfo *si; 843 sis = CMS_get0_SignerInfos(cms); 844 if (!sis) 845 goto end; 846 si = sk_CMS_SignerInfo_value(sis, 0); 847 srcms = CMS_sign_receipt(si, signer, key, other, flags); 848 if (!srcms) 849 goto end; 850 CMS_ContentInfo_free(cms); 851 cms = srcms; 852 } else if (operation & SMIME_SIGNERS) { 853 int i; 854 /* 855 * If detached data content we enable streaming if S/MIME output 856 * format. 857 */ 858 if (operation == SMIME_SIGN) { 859 860 if (flags & CMS_DETACHED) { 861 if (outformat == FORMAT_SMIME) 862 flags |= CMS_STREAM; 863 } 864 flags |= CMS_PARTIAL; 865 cms = CMS_sign(NULL, NULL, other, in, flags); 866 if (!cms) 867 goto end; 868 if (econtent_type) 869 CMS_set1_eContentType(cms, econtent_type); 870 871 if (rr_to) { 872 rr = make_receipt_request(rr_to, rr_allorfirst, rr_from); 873 if (!rr) { 874 BIO_puts(bio_err, 875 "Signed Receipt Request Creation Error\n"); 876 goto end; 877 } 878 } 879 } else 880 flags |= CMS_REUSE_DIGEST; 881 for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) { 882 CMS_SignerInfo *si; 883 signerfile = sk_OPENSSL_STRING_value(sksigners, i); 884 keyfile = sk_OPENSSL_STRING_value(skkeys, i); 885 signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL, 886 e, "signer certificate"); 887 if (!signer) 888 goto end; 889 key = load_key(bio_err, keyfile, keyform, 0, passin, e, 890 "signing key file"); 891 if (!key) 892 goto end; 893 si = CMS_add1_signer(cms, signer, key, sign_md, flags); 894 if (!si) 895 goto end; 896 if (rr && !CMS_add1_ReceiptRequest(si, rr)) 897 goto end; 898 X509_free(signer); 899 signer = NULL; 900 EVP_PKEY_free(key); 901 key = NULL; 902 } 903 /* If not streaming or resigning finalize structure */ 904 if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) { 905 if (!CMS_final(cms, in, NULL, flags)) 906 goto end; 907 } 908 } 909 910 if (!cms) { 911 BIO_printf(bio_err, "Error creating CMS structure\n"); 912 goto end; 913 } 914 915 ret = 4; 916 if (operation == SMIME_DECRYPT) { 917 if (flags & CMS_DEBUG_DECRYPT) 918 CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags); 919 920 if (secret_key) { 921 if (!CMS_decrypt_set1_key(cms, 922 secret_key, secret_keylen, 923 secret_keyid, secret_keyidlen)) { 924 BIO_puts(bio_err, "Error decrypting CMS using secret key\n"); 925 goto end; 926 } 927 } 928 929 if (key) { 930 if (!CMS_decrypt_set1_pkey(cms, key, recip)) { 931 BIO_puts(bio_err, "Error decrypting CMS using private key\n"); 932 goto end; 933 } 934 } 935 936 if (pwri_pass) { 937 if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) { 938 BIO_puts(bio_err, "Error decrypting CMS using password\n"); 939 goto end; 940 } 941 } 942 943 if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) { 944 BIO_printf(bio_err, "Error decrypting CMS structure\n"); 945 goto end; 946 } 947 } else if (operation == SMIME_DATAOUT) { 948 if (!CMS_data(cms, out, flags)) 949 goto end; 950 } else if (operation == SMIME_UNCOMPRESS) { 951 if (!CMS_uncompress(cms, indata, out, flags)) 952 goto end; 953 } else if (operation == SMIME_DIGEST_VERIFY) { 954 if (CMS_digest_verify(cms, indata, out, flags) > 0) 955 BIO_printf(bio_err, "Verification successful\n"); 956 else { 957 BIO_printf(bio_err, "Verification failure\n"); 958 goto end; 959 } 960 } else if (operation == SMIME_ENCRYPTED_DECRYPT) { 961 if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen, 962 indata, out, flags)) 963 goto end; 964 } else if (operation == SMIME_VERIFY) { 965 if (CMS_verify(cms, other, store, indata, out, flags) > 0) 966 BIO_printf(bio_err, "Verification successful\n"); 967 else { 968 BIO_printf(bio_err, "Verification failure\n"); 969 if (verify_retcode) 970 ret = verify_err + 32; 971 goto end; 972 } 973 if (signerfile) { 974 STACK_OF(X509) *signers; 975 signers = CMS_get0_signers(cms); 976 if (!save_certs(signerfile, signers)) { 977 BIO_printf(bio_err, 978 "Error writing signers to %s\n", signerfile); 979 ret = 5; 980 goto end; 981 } 982 sk_X509_free(signers); 983 } 984 if (rr_print) 985 receipt_request_print(bio_err, cms); 986 987 } else if (operation == SMIME_VERIFY_RECEIPT) { 988 if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) 989 BIO_printf(bio_err, "Verification successful\n"); 990 else { 991 BIO_printf(bio_err, "Verification failure\n"); 992 goto end; 993 } 994 } else { 995 if (noout) { 996 if (print) 997 CMS_ContentInfo_print_ctx(out, cms, 0, NULL); 998 } else if (outformat == FORMAT_SMIME) { 999 if (to) 1000 BIO_printf(out, "To: %s\n", to); 1001 if (from) 1002 BIO_printf(out, "From: %s\n", from); 1003 if (subject) 1004 BIO_printf(out, "Subject: %s\n", subject); 1005 if (operation == SMIME_RESIGN) 1006 ret = SMIME_write_CMS(out, cms, indata, flags); 1007 else 1008 ret = SMIME_write_CMS(out, cms, in, flags); 1009 } else if (outformat == FORMAT_PEM) 1010 ret = PEM_write_bio_CMS_stream(out, cms, in, flags); 1011 else if (outformat == FORMAT_ASN1) 1012 ret = i2d_CMS_bio_stream(out, cms, in, flags); 1013 else { 1014 BIO_printf(bio_err, "Bad output format for CMS file\n"); 1015 goto end; 1016 } 1017 if (ret <= 0) { 1018 ret = 6; 1019 goto end; 1020 } 1021 } 1022 ret = 0; 1023 end: 1024 if (ret) 1025 ERR_print_errors(bio_err); 1026 if (need_rand) 1027 app_RAND_write_file(NULL, bio_err); 1028 sk_X509_pop_free(encerts, X509_free); 1029 sk_X509_pop_free(other, X509_free); 1030 if (vpm) 1031 X509_VERIFY_PARAM_free(vpm); 1032 if (sksigners) 1033 sk_OPENSSL_STRING_free(sksigners); 1034 if (skkeys) 1035 sk_OPENSSL_STRING_free(skkeys); 1036 if (secret_key) 1037 OPENSSL_free(secret_key); 1038 if (secret_keyid) 1039 OPENSSL_free(secret_keyid); 1040 if (pwri_tmp) 1041 OPENSSL_free(pwri_tmp); 1042 if (econtent_type) 1043 ASN1_OBJECT_free(econtent_type); 1044 if (rr) 1045 CMS_ReceiptRequest_free(rr); 1046 if (rr_to) 1047 sk_OPENSSL_STRING_free(rr_to); 1048 if (rr_from) 1049 sk_OPENSSL_STRING_free(rr_from); 1050 X509_STORE_free(store); 1051 X509_free(cert); 1052 X509_free(recip); 1053 X509_free(signer); 1054 EVP_PKEY_free(key); 1055 CMS_ContentInfo_free(cms); 1056 CMS_ContentInfo_free(rcms); 1057 BIO_free(rctin); 1058 BIO_free(in); 1059 BIO_free(indata); 1060 BIO_free_all(out); 1061 if (passin) 1062 OPENSSL_free(passin); 1063 return (ret); 1064} 1065 1066static int save_certs(char *signerfile, STACK_OF(X509) *signers) 1067{ 1068 int i; 1069 BIO *tmp; 1070 if (!signerfile) 1071 return 1; 1072 tmp = BIO_new_file(signerfile, "w"); 1073 if (!tmp) 1074 return 0; 1075 for (i = 0; i < sk_X509_num(signers); i++) 1076 PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); 1077 BIO_free(tmp); 1078 return 1; 1079} 1080 1081/* Minimal callback just to output policy info (if any) */ 1082 1083static int cms_cb(int ok, X509_STORE_CTX *ctx) 1084{ 1085 int error; 1086 1087 error = X509_STORE_CTX_get_error(ctx); 1088 1089 verify_err = error; 1090 1091 if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) 1092 && ((error != X509_V_OK) || (ok != 2))) 1093 return ok; 1094 1095 policies_print(NULL, ctx); 1096 1097 return ok; 1098 1099} 1100 1101static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns) 1102{ 1103 STACK_OF(GENERAL_NAME) *gens; 1104 GENERAL_NAME *gen; 1105 int i, j; 1106 for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) { 1107 gens = sk_GENERAL_NAMES_value(gns, i); 1108 for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) { 1109 gen = sk_GENERAL_NAME_value(gens, j); 1110 BIO_puts(out, " "); 1111 GENERAL_NAME_print(out, gen); 1112 BIO_puts(out, "\n"); 1113 } 1114 } 1115 return; 1116} 1117 1118static void receipt_request_print(BIO *out, CMS_ContentInfo *cms) 1119{ 1120 STACK_OF(CMS_SignerInfo) *sis; 1121 CMS_SignerInfo *si; 1122 CMS_ReceiptRequest *rr; 1123 int allorfirst; 1124 STACK_OF(GENERAL_NAMES) *rto, *rlist; 1125 ASN1_STRING *scid; 1126 int i, rv; 1127 sis = CMS_get0_SignerInfos(cms); 1128 for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) { 1129 si = sk_CMS_SignerInfo_value(sis, i); 1130 rv = CMS_get1_ReceiptRequest(si, &rr); 1131 BIO_printf(bio_err, "Signer %d:\n", i + 1); 1132 if (rv == 0) 1133 BIO_puts(bio_err, " No Receipt Request\n"); 1134 else if (rv < 0) { 1135 BIO_puts(bio_err, " Receipt Request Parse Error\n"); 1136 ERR_print_errors(bio_err); 1137 } else { 1138 char *id; 1139 int idlen; 1140 CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst, 1141 &rlist, &rto); 1142 BIO_puts(out, " Signed Content ID:\n"); 1143 idlen = ASN1_STRING_length(scid); 1144 id = (char *)ASN1_STRING_data(scid); 1145 BIO_dump_indent(out, id, idlen, 4); 1146 BIO_puts(out, " Receipts From"); 1147 if (rlist) { 1148 BIO_puts(out, " List:\n"); 1149 gnames_stack_print(out, rlist); 1150 } else if (allorfirst == 1) 1151 BIO_puts(out, ": First Tier\n"); 1152 else if (allorfirst == 0) 1153 BIO_puts(out, ": All\n"); 1154 else 1155 BIO_printf(out, " Unknown (%d)\n", allorfirst); 1156 BIO_puts(out, " Receipts To:\n"); 1157 gnames_stack_print(out, rto); 1158 } 1159 if (rr) 1160 CMS_ReceiptRequest_free(rr); 1161 } 1162} 1163 1164static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns) 1165{ 1166 int i; 1167 STACK_OF(GENERAL_NAMES) *ret; 1168 GENERAL_NAMES *gens = NULL; 1169 GENERAL_NAME *gen = NULL; 1170 ret = sk_GENERAL_NAMES_new_null(); 1171 if (!ret) 1172 goto err; 1173 for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) { 1174 char *str = sk_OPENSSL_STRING_value(ns, i); 1175 gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0); 1176 if (!gen) 1177 goto err; 1178 gens = GENERAL_NAMES_new(); 1179 if (!gens) 1180 goto err; 1181 if (!sk_GENERAL_NAME_push(gens, gen)) 1182 goto err; 1183 gen = NULL; 1184 if (!sk_GENERAL_NAMES_push(ret, gens)) 1185 goto err; 1186 gens = NULL; 1187 } 1188 1189 return ret; 1190 1191 err: 1192 if (ret) 1193 sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free); 1194 if (gens) 1195 GENERAL_NAMES_free(gens); 1196 if (gen) 1197 GENERAL_NAME_free(gen); 1198 return NULL; 1199} 1200 1201static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) 1202 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING) 1203 *rr_from) 1204{ 1205 STACK_OF(GENERAL_NAMES) *rct_to, *rct_from; 1206 CMS_ReceiptRequest *rr; 1207 rct_to = make_names_stack(rr_to); 1208 if (!rct_to) 1209 goto err; 1210 if (rr_from) { 1211 rct_from = make_names_stack(rr_from); 1212 if (!rct_from) 1213 goto err; 1214 } else 1215 rct_from = NULL; 1216 rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from, 1217 rct_to); 1218 return rr; 1219 err: 1220 return NULL; 1221} 1222 1223#endif 1224