| 1 |
/* smime.c */ |
| 2 |
/* |
| 3 |
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| 4 |
* project. |
| 5 |
*/ |
| 6 |
/* ==================================================================== |
| 7 |
* Copyright (c) 1999-2004 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 |
* This product includes cryptographic software written by Eric Young |
| 55 |
* (eay@cryptsoft.com). This product includes software written by Tim |
| 56 |
* Hudson (tjh@cryptsoft.com). |
| 57 |
* |
| 58 |
*/ |
| 59 |
|
| 60 |
/* S/MIME utility function */ |
| 61 |
|
| 62 |
#include <stdio.h> |
| 63 |
#include <string.h> |
| 64 |
#include "apps.h" |
| 65 |
#include <openssl/crypto.h> |
| 66 |
#include <openssl/pem.h> |
| 67 |
#include <openssl/err.h> |
| 68 |
#include <openssl/x509_vfy.h> |
| 69 |
#include <openssl/x509v3.h> |
| 70 |
|
| 71 |
#undef PROG |
| 72 |
#define PROG smime_main |
| 73 |
static int save_certs(char *signerfile, STACK_OF(X509) *signers); |
| 74 |
static int smime_cb(int ok, X509_STORE_CTX *ctx); |
| 75 |
|
| 76 |
#define SMIME_OP 0x10 |
| 77 |
#define SMIME_ENCRYPT (1 | SMIME_OP) |
| 78 |
#define SMIME_DECRYPT 2 |
| 79 |
#define SMIME_SIGN (3 | SMIME_OP) |
| 80 |
#define SMIME_VERIFY 4 |
| 81 |
#define SMIME_PK7OUT 5 |
| 82 |
|
| 83 |
int MAIN(int, char **); |
| 84 |
|
| 85 |
int MAIN(int argc, char **argv) |
| 86 |
{ |
| 87 |
ENGINE *e = NULL; |
| 88 |
int operation = 0; |
| 89 |
int ret = 0; |
| 90 |
char **args; |
| 91 |
const char *inmode = "r", *outmode = "w"; |
| 92 |
char *infile = NULL, *outfile = NULL; |
| 93 |
char *signerfile = NULL, *recipfile = NULL; |
| 94 |
char *certfile = NULL, *keyfile = NULL, *contfile = NULL; |
| 95 |
const EVP_CIPHER *cipher = NULL; |
| 96 |
PKCS7 *p7 = NULL; |
| 97 |
X509_STORE *store = NULL; |
| 98 |
X509 *cert = NULL, *recip = NULL, *signer = NULL; |
| 99 |
EVP_PKEY *key = NULL; |
| 100 |
STACK_OF(X509) *encerts = NULL, *other = NULL; |
| 101 |
BIO *in = NULL, *out = NULL, *indata = NULL; |
| 102 |
int badarg = 0; |
| 103 |
int flags = PKCS7_DETACHED; |
| 104 |
char *to = NULL, *from = NULL, *subject = NULL; |
| 105 |
char *CAfile = NULL, *CApath = NULL; |
| 106 |
char *passargin = NULL, *passin = NULL; |
| 107 |
char *inrand = NULL; |
| 108 |
int need_rand = 0; |
| 109 |
int informat = FORMAT_SMIME, outformat = FORMAT_SMIME; |
| 110 |
int keyform = FORMAT_PEM; |
| 111 |
#ifndef OPENSSL_NO_ENGINE |
| 112 |
char *engine = NULL; |
| 113 |
#endif |
| 114 |
|
| 115 |
X509_VERIFY_PARAM *vpm = NULL; |
| 116 |
|
| 117 |
args = argv + 1; |
| 118 |
ret = 1; |
| 119 |
|
| 120 |
apps_startup(); |
| 121 |
|
| 122 |
if (bio_err == NULL) { |
| 123 |
if ((bio_err = BIO_new(BIO_s_file())) != NULL) |
| 124 |
BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); |
| 125 |
} |
| 126 |
|
| 127 |
if (!load_config(bio_err, NULL)) |
| 128 |
goto end; |
| 129 |
|
| 130 |
while (!badarg && *args && *args[0] == '-') { |
| 131 |
if (!strcmp(*args, "-encrypt")) |
| 132 |
operation = SMIME_ENCRYPT; |
| 133 |
else if (!strcmp(*args, "-decrypt")) |
| 134 |
operation = SMIME_DECRYPT; |
| 135 |
else if (!strcmp(*args, "-sign")) |
| 136 |
operation = SMIME_SIGN; |
| 137 |
else if (!strcmp(*args, "-verify")) |
| 138 |
operation = SMIME_VERIFY; |
| 139 |
else if (!strcmp(*args, "-pk7out")) |
| 140 |
operation = SMIME_PK7OUT; |
| 141 |
#ifndef OPENSSL_NO_DES |
| 142 |
else if (!strcmp(*args, "-des3")) |
| 143 |
cipher = EVP_des_ede3_cbc(); |
| 144 |
else if (!strcmp(*args, "-des")) |
| 145 |
cipher = EVP_des_cbc(); |
| 146 |
#endif |
| 147 |
#ifndef OPENSSL_NO_SEED |
| 148 |
else if (!strcmp(*args, "-seed")) |
| 149 |
cipher = EVP_seed_cbc(); |
| 150 |
#endif |
| 151 |
#ifndef OPENSSL_NO_RC2 |
| 152 |
else if (!strcmp(*args, "-rc2-40")) |
| 153 |
cipher = EVP_rc2_40_cbc(); |
| 154 |
else if (!strcmp(*args, "-rc2-128")) |
| 155 |
cipher = EVP_rc2_cbc(); |
| 156 |
else if (!strcmp(*args, "-rc2-64")) |
| 157 |
cipher = EVP_rc2_64_cbc(); |
| 158 |
#endif |
| 159 |
#ifndef OPENSSL_NO_AES |
| 160 |
else if (!strcmp(*args, "-aes128")) |
| 161 |
cipher = EVP_aes_128_cbc(); |
| 162 |
else if (!strcmp(*args, "-aes192")) |
| 163 |
cipher = EVP_aes_192_cbc(); |
| 164 |
else if (!strcmp(*args, "-aes256")) |
| 165 |
cipher = EVP_aes_256_cbc(); |
| 166 |
#endif |
| 167 |
#ifndef OPENSSL_NO_CAMELLIA |
| 168 |
else if (!strcmp(*args, "-camellia128")) |
| 169 |
cipher = EVP_camellia_128_cbc(); |
| 170 |
else if (!strcmp(*args, "-camellia192")) |
| 171 |
cipher = EVP_camellia_192_cbc(); |
| 172 |
else if (!strcmp(*args, "-camellia256")) |
| 173 |
cipher = EVP_camellia_256_cbc(); |
| 174 |
#endif |
| 175 |
else if (!strcmp(*args, "-text")) |
| 176 |
flags |= PKCS7_TEXT; |
| 177 |
else if (!strcmp(*args, "-nointern")) |
| 178 |
flags |= PKCS7_NOINTERN; |
| 179 |
else if (!strcmp(*args, "-noverify")) |
| 180 |
flags |= PKCS7_NOVERIFY; |
| 181 |
else if (!strcmp(*args, "-nochain")) |
| 182 |
flags |= PKCS7_NOCHAIN; |
| 183 |
else if (!strcmp(*args, "-nocerts")) |
| 184 |
flags |= PKCS7_NOCERTS; |
| 185 |
else if (!strcmp(*args, "-noattr")) |
| 186 |
flags |= PKCS7_NOATTR; |
| 187 |
else if (!strcmp(*args, "-nodetach")) |
| 188 |
flags &= ~PKCS7_DETACHED; |
| 189 |
else if (!strcmp(*args, "-nosmimecap")) |
| 190 |
flags |= PKCS7_NOSMIMECAP; |
| 191 |
else if (!strcmp(*args, "-binary")) |
| 192 |
flags |= PKCS7_BINARY; |
| 193 |
else if (!strcmp(*args, "-nosigs")) |
| 194 |
flags |= PKCS7_NOSIGS; |
| 195 |
else if (!strcmp(*args, "-nooldmime")) |
| 196 |
flags |= PKCS7_NOOLDMIMETYPE; |
| 197 |
else if (!strcmp(*args, "-crlfeol")) |
| 198 |
flags |= PKCS7_CRLFEOL; |
| 199 |
else if (!strcmp(*args, "-rand")) { |
| 200 |
if (args[1]) { |
| 201 |
args++; |
| 202 |
inrand = *args; |
| 203 |
} else |
| 204 |
badarg = 1; |
| 205 |
need_rand = 1; |
| 206 |
} |
| 207 |
#ifndef OPENSSL_NO_ENGINE |
| 208 |
else if (!strcmp(*args, "-engine")) { |
| 209 |
if (args[1]) { |
| 210 |
args++; |
| 211 |
engine = *args; |
| 212 |
} else |
| 213 |
badarg = 1; |
| 214 |
} |
| 215 |
#endif |
| 216 |
else if (!strcmp(*args, "-passin")) { |
| 217 |
if (args[1]) { |
| 218 |
args++; |
| 219 |
passargin = *args; |
| 220 |
} else |
| 221 |
badarg = 1; |
| 222 |
} else if (!strcmp(*args, "-to")) { |
| 223 |
if (args[1]) { |
| 224 |
args++; |
| 225 |
to = *args; |
| 226 |
} else |
| 227 |
badarg = 1; |
| 228 |
} else if (!strcmp(*args, "-from")) { |
| 229 |
if (args[1]) { |
| 230 |
args++; |
| 231 |
from = *args; |
| 232 |
} else |
| 233 |
badarg = 1; |
| 234 |
} else if (!strcmp(*args, "-subject")) { |
| 235 |
if (args[1]) { |
| 236 |
args++; |
| 237 |
subject = *args; |
| 238 |
} else |
| 239 |
badarg = 1; |
| 240 |
} else if (!strcmp(*args, "-signer")) { |
| 241 |
if (args[1]) { |
| 242 |
args++; |
| 243 |
signerfile = *args; |
| 244 |
} else |
| 245 |
badarg = 1; |
| 246 |
} else if (!strcmp(*args, "-recip")) { |
| 247 |
if (args[1]) { |
| 248 |
args++; |
| 249 |
recipfile = *args; |
| 250 |
} else |
| 251 |
badarg = 1; |
| 252 |
} else if (!strcmp(*args, "-inkey")) { |
| 253 |
if (args[1]) { |
| 254 |
args++; |
| 255 |
keyfile = *args; |
| 256 |
} else |
| 257 |
badarg = 1; |
| 258 |
} else if (!strcmp(*args, "-keyform")) { |
| 259 |
if (args[1]) { |
| 260 |
args++; |
| 261 |
keyform = str2fmt(*args); |
| 262 |
} else |
| 263 |
badarg = 1; |
| 264 |
} else if (!strcmp(*args, "-certfile")) { |
| 265 |
if (args[1]) { |
| 266 |
args++; |
| 267 |
certfile = *args; |
| 268 |
} else |
| 269 |
badarg = 1; |
| 270 |
} else if (!strcmp(*args, "-CAfile")) { |
| 271 |
if (args[1]) { |
| 272 |
args++; |
| 273 |
CAfile = *args; |
| 274 |
} else |
| 275 |
badarg = 1; |
| 276 |
} else if (!strcmp(*args, "-CApath")) { |
| 277 |
if (args[1]) { |
| 278 |
args++; |
| 279 |
CApath = *args; |
| 280 |
} else |
| 281 |
badarg = 1; |
| 282 |
} else if (!strcmp(*args, "-in")) { |
| 283 |
if (args[1]) { |
| 284 |
args++; |
| 285 |
infile = *args; |
| 286 |
} else |
| 287 |
badarg = 1; |
| 288 |
} else if (!strcmp(*args, "-inform")) { |
| 289 |
if (args[1]) { |
| 290 |
args++; |
| 291 |
informat = str2fmt(*args); |
| 292 |
} else |
| 293 |
badarg = 1; |
| 294 |
} else if (!strcmp(*args, "-outform")) { |
| 295 |
if (args[1]) { |
| 296 |
args++; |
| 297 |
outformat = str2fmt(*args); |
| 298 |
} else |
| 299 |
badarg = 1; |
| 300 |
} else if (!strcmp(*args, "-out")) { |
| 301 |
if (args[1]) { |
| 302 |
args++; |
| 303 |
outfile = *args; |
| 304 |
} else |
| 305 |
badarg = 1; |
| 306 |
} else if (!strcmp(*args, "-content")) { |
| 307 |
if (args[1]) { |
| 308 |
args++; |
| 309 |
contfile = *args; |
| 310 |
} else |
| 311 |
badarg = 1; |
| 312 |
} else if (args_verify(&args, NULL, &badarg, bio_err, &vpm)) |
| 313 |
continue; |
| 314 |
else |
| 315 |
badarg = 1; |
| 316 |
args++; |
| 317 |
} |
| 318 |
|
| 319 |
if (operation == SMIME_SIGN) { |
| 320 |
if (!signerfile) { |
| 321 |
BIO_printf(bio_err, "No signer certificate specified\n"); |
| 322 |
badarg = 1; |
| 323 |
} |
| 324 |
need_rand = 1; |
| 325 |
} else if (operation == SMIME_DECRYPT) { |
| 326 |
if (!recipfile && !keyfile) { |
| 327 |
BIO_printf(bio_err, |
| 328 |
"No recipient certificate or key specified\n"); |
| 329 |
badarg = 1; |
| 330 |
} |
| 331 |
} else if (operation == SMIME_ENCRYPT) { |
| 332 |
if (!*args) { |
| 333 |
BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); |
| 334 |
badarg = 1; |
| 335 |
} |
| 336 |
need_rand = 1; |
| 337 |
} else if (!operation) |
| 338 |
badarg = 1; |
| 339 |
|
| 340 |
if (badarg) { |
| 341 |
BIO_printf(bio_err, "Usage smime [options] cert.pem ...\n"); |
| 342 |
BIO_printf(bio_err, "where options are\n"); |
| 343 |
BIO_printf(bio_err, "-encrypt encrypt message\n"); |
| 344 |
BIO_printf(bio_err, "-decrypt decrypt encrypted message\n"); |
| 345 |
BIO_printf(bio_err, "-sign sign message\n"); |
| 346 |
BIO_printf(bio_err, "-verify verify signed message\n"); |
| 347 |
BIO_printf(bio_err, "-pk7out output PKCS#7 structure\n"); |
| 348 |
#ifndef OPENSSL_NO_DES |
| 349 |
BIO_printf(bio_err, "-des3 encrypt with triple DES\n"); |
| 350 |
BIO_printf(bio_err, "-des encrypt with DES\n"); |
| 351 |
#endif |
| 352 |
#ifndef OPENSSL_NO_SEED |
| 353 |
BIO_printf(bio_err, "-seed encrypt with SEED\n"); |
| 354 |
#endif |
| 355 |
#ifndef OPENSSL_NO_RC2 |
| 356 |
BIO_printf(bio_err, "-rc2-40 encrypt with RC2-40 (default)\n"); |
| 357 |
BIO_printf(bio_err, "-rc2-64 encrypt with RC2-64\n"); |
| 358 |
BIO_printf(bio_err, "-rc2-128 encrypt with RC2-128\n"); |
| 359 |
#endif |
| 360 |
#ifndef OPENSSL_NO_AES |
| 361 |
BIO_printf(bio_err, "-aes128, -aes192, -aes256\n"); |
| 362 |
BIO_printf(bio_err, |
| 363 |
" encrypt PEM output with cbc aes\n"); |
| 364 |
#endif |
| 365 |
#ifndef OPENSSL_NO_CAMELLIA |
| 366 |
BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n"); |
| 367 |
BIO_printf(bio_err, |
| 368 |
" encrypt PEM output with cbc camellia\n"); |
| 369 |
#endif |
| 370 |
BIO_printf(bio_err, |
| 371 |
"-nointern don't search certificates in message for signer\n"); |
| 372 |
BIO_printf(bio_err, |
| 373 |
"-nosigs don't verify message signature\n"); |
| 374 |
BIO_printf(bio_err, |
| 375 |
"-noverify don't verify signers certificate\n"); |
| 376 |
BIO_printf(bio_err, |
| 377 |
"-nocerts don't include signers certificate when signing\n"); |
| 378 |
BIO_printf(bio_err, "-nodetach use opaque signing\n"); |
| 379 |
BIO_printf(bio_err, |
| 380 |
"-noattr don't include any signed attributes\n"); |
| 381 |
BIO_printf(bio_err, |
| 382 |
"-binary don't translate message to text\n"); |
| 383 |
BIO_printf(bio_err, "-certfile file other certificates file\n"); |
| 384 |
BIO_printf(bio_err, "-signer file signer certificate file\n"); |
| 385 |
BIO_printf(bio_err, |
| 386 |
"-recip file recipient certificate file for decryption\n"); |
| 387 |
BIO_printf(bio_err, "-in file input file\n"); |
| 388 |
BIO_printf(bio_err, |
| 389 |
"-inform arg input format SMIME (default), PEM or DER\n"); |
| 390 |
BIO_printf(bio_err, |
| 391 |
"-inkey file input private key (if not signer or recipient)\n"); |
| 392 |
BIO_printf(bio_err, |
| 393 |
"-keyform arg input private key format (PEM or ENGINE)\n"); |
| 394 |
BIO_printf(bio_err, "-out file output file\n"); |
| 395 |
BIO_printf(bio_err, |
| 396 |
"-outform arg output format SMIME (default), PEM or DER\n"); |
| 397 |
BIO_printf(bio_err, |
| 398 |
"-content file supply or override content for detached signature\n"); |
| 399 |
BIO_printf(bio_err, "-to addr to address\n"); |
| 400 |
BIO_printf(bio_err, "-from ad from address\n"); |
| 401 |
BIO_printf(bio_err, "-subject s subject\n"); |
| 402 |
BIO_printf(bio_err, |
| 403 |
"-text include or delete text MIME headers\n"); |
| 404 |
BIO_printf(bio_err, |
| 405 |
"-CApath dir trusted certificates directory\n"); |
| 406 |
BIO_printf(bio_err, "-CAfile file trusted certificates file\n"); |
| 407 |
BIO_printf(bio_err, |
| 408 |
"-crl_check check revocation status of signer's certificate using CRLs\n"); |
| 409 |
BIO_printf(bio_err, |
| 410 |
"-crl_check_all check revocation status of signer's certificate chain using CRLs\n"); |
| 411 |
#ifndef OPENSSL_NO_ENGINE |
| 412 |
BIO_printf(bio_err, |
| 413 |
"-engine e use engine e, possibly a hardware device.\n"); |
| 414 |
#endif |
| 415 |
BIO_printf(bio_err, "-passin arg input file pass phrase source\n"); |
| 416 |
BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, |
| 417 |
LIST_SEPARATOR_CHAR); |
| 418 |
BIO_printf(bio_err, |
| 419 |
" load the file (or the files in the directory) into\n"); |
| 420 |
BIO_printf(bio_err, " the random number generator\n"); |
| 421 |
BIO_printf(bio_err, |
| 422 |
"cert.pem recipient certificate(s) for encryption\n"); |
| 423 |
goto end; |
| 424 |
} |
| 425 |
#ifndef OPENSSL_NO_ENGINE |
| 426 |
e = setup_engine(bio_err, engine, 0); |
| 427 |
#endif |
| 428 |
|
| 429 |
if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { |
| 430 |
BIO_printf(bio_err, "Error getting password\n"); |
| 431 |
goto end; |
| 432 |
} |
| 433 |
|
| 434 |
if (need_rand) { |
| 435 |
app_RAND_load_file(NULL, bio_err, (inrand != NULL)); |
| 436 |
if (inrand != NULL) |
| 437 |
BIO_printf(bio_err, "%ld semi-random bytes loaded\n", |
| 438 |
app_RAND_load_files(inrand)); |
| 439 |
} |
| 440 |
|
| 441 |
ret = 2; |
| 442 |
|
| 443 |
if (operation != SMIME_SIGN) |
| 444 |
flags &= ~PKCS7_DETACHED; |
| 445 |
|
| 446 |
if (operation & SMIME_OP) { |
| 447 |
if (flags & PKCS7_BINARY) |
| 448 |
inmode = "rb"; |
| 449 |
if (outformat == FORMAT_ASN1) |
| 450 |
outmode = "wb"; |
| 451 |
} else { |
| 452 |
if (flags & PKCS7_BINARY) |
| 453 |
outmode = "wb"; |
| 454 |
if (informat == FORMAT_ASN1) |
| 455 |
inmode = "rb"; |
| 456 |
} |
| 457 |
|
| 458 |
if (operation == SMIME_ENCRYPT) { |
| 459 |
if (!cipher) { |
| 460 |
#ifndef OPENSSL_NO_DES |
| 461 |
cipher = EVP_des_ede3_cbc(); |
| 462 |
#else |
| 463 |
BIO_printf(bio_err, "No cipher selected\n"); |
| 464 |
goto end; |
| 465 |
#endif |
| 466 |
} |
| 467 |
encerts = sk_X509_new_null(); |
| 468 |
while (*args) { |
| 469 |
if (!(cert = load_cert(bio_err, *args, FORMAT_PEM, |
| 470 |
NULL, e, "recipient certificate file"))) { |
| 471 |
#if 0 /* An appropriate message is already printed */ |
| 472 |
BIO_printf(bio_err, |
| 473 |
"Can't read recipient certificate file %s\n", |
| 474 |
*args); |
| 475 |
#endif |
| 476 |
goto end; |
| 477 |
} |
| 478 |
sk_X509_push(encerts, cert); |
| 479 |
cert = NULL; |
| 480 |
args++; |
| 481 |
} |
| 482 |
} |
| 483 |
|
| 484 |
if (signerfile && (operation == SMIME_SIGN)) { |
| 485 |
if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL, |
| 486 |
e, "signer certificate"))) { |
| 487 |
#if 0 /* An appropri message has already been |
| 488 |
* printed */ |
| 489 |
BIO_printf(bio_err, "Can't read signer certificate file %s\n", |
| 490 |
signerfile); |
| 491 |
#endif |
| 492 |
goto end; |
| 493 |
} |
| 494 |
} |
| 495 |
|
| 496 |
if (certfile) { |
| 497 |
if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL, |
| 498 |
e, "certificate file"))) { |
| 499 |
#if 0 /* An appropriate message has already been |
| 500 |
* printed */ |
| 501 |
BIO_printf(bio_err, "Can't read certificate file %s\n", certfile); |
| 502 |
#endif |
| 503 |
ERR_print_errors(bio_err); |
| 504 |
goto end; |
| 505 |
} |
| 506 |
} |
| 507 |
|
| 508 |
if (recipfile && (operation == SMIME_DECRYPT)) { |
| 509 |
if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL, |
| 510 |
e, "recipient certificate file"))) { |
| 511 |
#if 0 /* An appropriate message has alrady been |
| 512 |
* printed */ |
| 513 |
BIO_printf(bio_err, "Can't read recipient certificate file %s\n", |
| 514 |
recipfile); |
| 515 |
#endif |
| 516 |
ERR_print_errors(bio_err); |
| 517 |
goto end; |
| 518 |
} |
| 519 |
} |
| 520 |
|
| 521 |
if (operation == SMIME_DECRYPT) { |
| 522 |
if (!keyfile) |
| 523 |
keyfile = recipfile; |
| 524 |
} else if (operation == SMIME_SIGN) { |
| 525 |
if (!keyfile) |
| 526 |
keyfile = signerfile; |
| 527 |
} else |
| 528 |
keyfile = NULL; |
| 529 |
|
| 530 |
if (keyfile) { |
| 531 |
key = load_key(bio_err, keyfile, keyform, 0, passin, e, |
| 532 |
"signing key file"); |
| 533 |
if (!key) |
| 534 |
goto end; |
| 535 |
} |
| 536 |
|
| 537 |
if (infile) { |
| 538 |
if (!(in = BIO_new_file(infile, inmode))) { |
| 539 |
BIO_printf(bio_err, "Can't open input file %s\n", infile); |
| 540 |
goto end; |
| 541 |
} |
| 542 |
} else |
| 543 |
in = BIO_new_fp(stdin, BIO_NOCLOSE); |
| 544 |
|
| 545 |
if (outfile) { |
| 546 |
if (!(out = BIO_new_file(outfile, outmode))) { |
| 547 |
BIO_printf(bio_err, "Can't open output file %s\n", outfile); |
| 548 |
goto end; |
| 549 |
} |
| 550 |
} else { |
| 551 |
out = BIO_new_fp(stdout, BIO_NOCLOSE); |
| 552 |
#ifdef OPENSSL_SYS_VMS |
| 553 |
{ |
| 554 |
BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| 555 |
out = BIO_push(tmpbio, out); |
| 556 |
} |
| 557 |
#endif |
| 558 |
} |
| 559 |
|
| 560 |
if (operation == SMIME_VERIFY) { |
| 561 |
if (!(store = setup_verify(bio_err, CAfile, CApath))) |
| 562 |
goto end; |
| 563 |
X509_STORE_set_verify_cb_func(store, smime_cb); |
| 564 |
if (vpm) |
| 565 |
X509_STORE_set1_param(store, vpm); |
| 566 |
} |
| 567 |
|
| 568 |
ret = 3; |
| 569 |
|
| 570 |
if (operation == SMIME_ENCRYPT) |
| 571 |
p7 = PKCS7_encrypt(encerts, in, cipher, flags); |
| 572 |
else if (operation == SMIME_SIGN) { |
| 573 |
/* |
| 574 |
* If detached data and SMIME output enable partial signing. |
| 575 |
*/ |
| 576 |
if ((flags & PKCS7_DETACHED) && (outformat == FORMAT_SMIME)) |
| 577 |
flags |= PKCS7_STREAM; |
| 578 |
p7 = PKCS7_sign(signer, key, other, in, flags); |
| 579 |
} else { |
| 580 |
if (informat == FORMAT_SMIME) |
| 581 |
p7 = SMIME_read_PKCS7(in, &indata); |
| 582 |
else if (informat == FORMAT_PEM) |
| 583 |
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL); |
| 584 |
else if (informat == FORMAT_ASN1) |
| 585 |
p7 = d2i_PKCS7_bio(in, NULL); |
| 586 |
else { |
| 587 |
BIO_printf(bio_err, "Bad input format for PKCS#7 file\n"); |
| 588 |
goto end; |
| 589 |
} |
| 590 |
|
| 591 |
if (!p7) { |
| 592 |
BIO_printf(bio_err, "Error reading S/MIME message\n"); |
| 593 |
goto end; |
| 594 |
} |
| 595 |
if (contfile) { |
| 596 |
BIO_free(indata); |
| 597 |
if (!(indata = BIO_new_file(contfile, "rb"))) { |
| 598 |
BIO_printf(bio_err, "Can't read content file %s\n", contfile); |
| 599 |
goto end; |
| 600 |
} |
| 601 |
} |
| 602 |
} |
| 603 |
|
| 604 |
if (!p7) { |
| 605 |
BIO_printf(bio_err, "Error creating PKCS#7 structure\n"); |
| 606 |
goto end; |
| 607 |
} |
| 608 |
|
| 609 |
ret = 4; |
| 610 |
if (operation == SMIME_DECRYPT) { |
| 611 |
if (!PKCS7_decrypt(p7, key, recip, out, flags)) { |
| 612 |
BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n"); |
| 613 |
goto end; |
| 614 |
} |
| 615 |
} else if (operation == SMIME_VERIFY) { |
| 616 |
STACK_OF(X509) *signers; |
| 617 |
if (PKCS7_verify(p7, other, store, indata, out, flags)) |
| 618 |
BIO_printf(bio_err, "Verification successful\n"); |
| 619 |
else { |
| 620 |
BIO_printf(bio_err, "Verification failure\n"); |
| 621 |
goto end; |
| 622 |
} |
| 623 |
signers = PKCS7_get0_signers(p7, other, flags); |
| 624 |
if (!save_certs(signerfile, signers)) { |
| 625 |
BIO_printf(bio_err, "Error writing signers to %s\n", signerfile); |
| 626 |
ret = 5; |
| 627 |
goto end; |
| 628 |
} |
| 629 |
sk_X509_free(signers); |
| 630 |
} else if (operation == SMIME_PK7OUT) |
| 631 |
PEM_write_bio_PKCS7(out, p7); |
| 632 |
else { |
| 633 |
if (to) |
| 634 |
BIO_printf(out, "To: %s\n", to); |
| 635 |
if (from) |
| 636 |
BIO_printf(out, "From: %s\n", from); |
| 637 |
if (subject) |
| 638 |
BIO_printf(out, "Subject: %s\n", subject); |
| 639 |
if (outformat == FORMAT_SMIME) |
| 640 |
SMIME_write_PKCS7(out, p7, in, flags); |
| 641 |
else if (outformat == FORMAT_PEM) |
| 642 |
PEM_write_bio_PKCS7(out, p7); |
| 643 |
else if (outformat == FORMAT_ASN1) |
| 644 |
i2d_PKCS7_bio(out, p7); |
| 645 |
else { |
| 646 |
BIO_printf(bio_err, "Bad output format for PKCS#7 file\n"); |
| 647 |
goto end; |
| 648 |
} |
| 649 |
} |
| 650 |
ret = 0; |
| 651 |
end: |
| 652 |
if (need_rand) |
| 653 |
app_RAND_write_file(NULL, bio_err); |
| 654 |
if (ret) |
| 655 |
ERR_print_errors(bio_err); |
| 656 |
sk_X509_pop_free(encerts, X509_free); |
| 657 |
sk_X509_pop_free(other, X509_free); |
| 658 |
if (vpm) |
| 659 |
X509_VERIFY_PARAM_free(vpm); |
| 660 |
X509_STORE_free(store); |
| 661 |
X509_free(cert); |
| 662 |
X509_free(recip); |
| 663 |
X509_free(signer); |
| 664 |
EVP_PKEY_free(key); |
| 665 |
PKCS7_free(p7); |
| 666 |
BIO_free(in); |
| 667 |
BIO_free(indata); |
| 668 |
BIO_free_all(out); |
| 669 |
if (passin) |
| 670 |
OPENSSL_free(passin); |
| 671 |
return (ret); |
| 672 |
} |
| 673 |
|
| 674 |
static int save_certs(char *signerfile, STACK_OF(X509) *signers) |
| 675 |
{ |
| 676 |
int i; |
| 677 |
BIO *tmp; |
| 678 |
if (!signerfile) |
| 679 |
return 1; |
| 680 |
tmp = BIO_new_file(signerfile, "w"); |
| 681 |
if (!tmp) |
| 682 |
return 0; |
| 683 |
for (i = 0; i < sk_X509_num(signers); i++) |
| 684 |
PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); |
| 685 |
BIO_free(tmp); |
| 686 |
return 1; |
| 687 |
} |
| 688 |
|
| 689 |
/* Minimal callback just to output policy info (if any) */ |
| 690 |
|
| 691 |
static int smime_cb(int ok, X509_STORE_CTX *ctx) |
| 692 |
{ |
| 693 |
int error; |
| 694 |
|
| 695 |
error = X509_STORE_CTX_get_error(ctx); |
| 696 |
|
| 697 |
if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) |
| 698 |
&& ((error != X509_V_OK) || (ok != 2))) |
| 699 |
return ok; |
| 700 |
|
| 701 |
policies_print(NULL, ctx); |
| 702 |
|
| 703 |
return ok; |
| 704 |
|
| 705 |
} |
