1 /* apps/crl.c */ 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 #include <stdio.h> 60 #include <stdlib.h> 61 #include <string.h> 62 #include "apps.h" 63 #include <openssl/bio.h> 64 #include <openssl/err.h> 65 #include <openssl/x509.h> 66 #include <openssl/x509v3.h> 67 #include <openssl/pem.h> 68 69 #undef PROG 70 #define PROG crl_main 71 72 #undef POSTFIX 73 #define POSTFIX ".rvk" 74 75 static const char *crl_usage[] = { 76 "usage: crl args\n", 77 "\n", 78 " -inform arg - input format - default PEM (DER or PEM)\n", 79 " -outform arg - output format - default PEM\n", 80 " -text - print out a text format version\n", 81 " -in arg - input file - default stdin\n", 82 " -out arg - output file - default stdout\n", 83 " -hash - print hash value\n", 84 #ifndef OPENSSL_NO_MD5 85 " -hash_old - print old-style (MD5) hash value\n", 86 #endif 87 " -fingerprint - print the crl fingerprint\n", 88 " -issuer - print issuer DN\n", 89 " -lastupdate - lastUpdate field\n", 90 " -nextupdate - nextUpdate field\n", 91 " -crlnumber - print CRL number\n", 92 " -noout - no CRL output\n", 93 " -CAfile name - verify CRL using certificates in file \"name\"\n", 94 " -CApath dir - verify CRL using certificates in \"dir\"\n", 95 " -nameopt arg - various certificate name options\n", 96 NULL 97 }; 98 99 static X509_CRL *load_crl(char *file, int format); 100 static BIO *bio_out = NULL; 101 102 int MAIN(int, char **); 103 104 int MAIN(int argc, char **argv) 105 { 106 unsigned long nmflag = 0; 107 X509_CRL *x = NULL; 108 char *CAfile = NULL, *CApath = NULL; 109 int ret = 1, i, num, badops = 0; 110 BIO *out = NULL; 111 int informat, outformat; 112 char *infile = NULL, *outfile = NULL; 113 int hash = 0, issuer = 0, lastupdate = 0, nextupdate = 0, noout = 114 0, text = 0; 115 #ifndef OPENSSL_NO_MD5 116 int hash_old = 0; 117 #endif 118 int fingerprint = 0, crlnumber = 0; 119 const char **pp; 120 X509_STORE *store = NULL; 121 X509_STORE_CTX ctx; 122 X509_LOOKUP *lookup = NULL; 123 X509_OBJECT xobj; 124 EVP_PKEY *pkey; 125 int do_ver = 0; 126 const EVP_MD *md_alg, *digest = EVP_sha1(); 127 128 apps_startup(); 129 130 if (bio_err == NULL) 131 if ((bio_err = BIO_new(BIO_s_file())) != NULL) 132 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); 133 134 if (!load_config(bio_err, NULL)) 135 goto end; 136 137 if (bio_out == NULL) 138 if ((bio_out = BIO_new(BIO_s_file())) != NULL) { 139 BIO_set_fp(bio_out, stdout, BIO_NOCLOSE); 140 #ifdef OPENSSL_SYS_VMS 141 { 142 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 143 bio_out = BIO_push(tmpbio, bio_out); 144 } 145 #endif 146 } 147 148 informat = FORMAT_PEM; 149 outformat = FORMAT_PEM; 150 151 argc--; 152 argv++; 153 num = 0; 154 while (argc >= 1) { 155 #ifdef undef 156 if (strcmp(*argv, "-p") == 0) { 157 if (--argc < 1) 158 goto bad; 159 if (!args_from_file(++argv, Nargc, Nargv)) { 160 goto end; 161 } 162 */} 163 #endif 164 if (strcmp(*argv, "-inform") == 0) { 165 if (--argc < 1) 166 goto bad; 167 informat = str2fmt(*(++argv)); 168 } else if (strcmp(*argv, "-outform") == 0) { 169 if (--argc < 1) 170 goto bad; 171 outformat = str2fmt(*(++argv)); 172 } else if (strcmp(*argv, "-in") == 0) { 173 if (--argc < 1) 174 goto bad; 175 infile = *(++argv); 176 } else if (strcmp(*argv, "-out") == 0) { 177 if (--argc < 1) 178 goto bad; 179 outfile = *(++argv); 180 } else if (strcmp(*argv, "-CApath") == 0) { 181 if (--argc < 1) 182 goto bad; 183 CApath = *(++argv); 184 do_ver = 1; 185 } else if (strcmp(*argv, "-CAfile") == 0) { 186 if (--argc < 1) 187 goto bad; 188 CAfile = *(++argv); 189 do_ver = 1; 190 } else if (strcmp(*argv, "-verify") == 0) 191 do_ver = 1; 192 else if (strcmp(*argv, "-text") == 0) 193 text = 1; 194 else if (strcmp(*argv, "-hash") == 0) 195 hash = ++num; 196 #ifndef OPENSSL_NO_MD5 197 else if (strcmp(*argv, "-hash_old") == 0) 198 hash_old = ++num; 199 #endif 200 else if (strcmp(*argv, "-nameopt") == 0) { 201 if (--argc < 1) 202 goto bad; 203 if (!set_name_ex(&nmflag, *(++argv))) 204 goto bad; 205 } else if (strcmp(*argv, "-issuer") == 0) 206 issuer = ++num; 207 else if (strcmp(*argv, "-lastupdate") == 0) 208 lastupdate = ++num; 209 else if (strcmp(*argv, "-nextupdate") == 0) 210 nextupdate = ++num; 211 else if (strcmp(*argv, "-noout") == 0) 212 noout = ++num; 213 else if (strcmp(*argv, "-fingerprint") == 0) 214 fingerprint = ++num; 215 else if (strcmp(*argv, "-crlnumber") == 0) 216 crlnumber = ++num; 217 else if ((md_alg = EVP_get_digestbyname(*argv + 1))) { 218 /* ok */ 219 digest = md_alg; 220 } else { 221 BIO_printf(bio_err, "unknown option %s\n", *argv); 222 badops = 1; 223 break; 224 } 225 argc--; 226 argv++; 227 } 228 229 if (badops) { 230 bad: 231 for (pp = crl_usage; (*pp != NULL); pp++) 232 BIO_printf(bio_err, "%s", *pp); 233 goto end; 234 } 235 236 ERR_load_crypto_strings(); 237 x = load_crl(infile, informat); 238 if (x == NULL) { 239 goto end; 240 } 241 242 if (do_ver) { 243 store = X509_STORE_new(); 244 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file()); 245 if (lookup == NULL) 246 goto end; 247 if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) 248 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); 249 250 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir()); 251 if (lookup == NULL) 252 goto end; 253 if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) 254 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); 255 ERR_clear_error(); 256 257 if (!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) { 258 BIO_printf(bio_err, "Error initialising X509 store\n"); 259 goto end; 260 } 261 262 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 263 X509_CRL_get_issuer(x), &xobj); 264 if (i <= 0) { 265 BIO_printf(bio_err, "Error getting CRL issuer certificate\n"); 266 goto end; 267 } 268 pkey = X509_get_pubkey(xobj.data.x509); 269 X509_OBJECT_free_contents(&xobj); 270 if (!pkey) { 271 BIO_printf(bio_err, "Error getting CRL issuer public key\n"); 272 goto end; 273 } 274 i = X509_CRL_verify(x, pkey); 275 EVP_PKEY_free(pkey); 276 if (i < 0) 277 goto end; 278 if (i == 0) 279 BIO_printf(bio_err, "verify failure\n"); 280 else 281 BIO_printf(bio_err, "verify OK\n"); 282 } 283 284 if (num) { 285 for (i = 1; i <= num; i++) { 286 if (issuer == i) { 287 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), 288 nmflag); 289 } 290 if (crlnumber == i) { 291 ASN1_INTEGER *crlnum; 292 crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number, NULL, NULL); 293 BIO_printf(bio_out, "crlNumber="); 294 if (crlnum) { 295 i2a_ASN1_INTEGER(bio_out, crlnum); 296 ASN1_INTEGER_free(crlnum); 297 } else 298 BIO_puts(bio_out, "<NONE>"); 299 BIO_printf(bio_out, "\n"); 300 } 301 if (hash == i) { 302 BIO_printf(bio_out, "%08lx\n", 303 X509_NAME_hash(X509_CRL_get_issuer(x))); 304 } 305 #ifndef OPENSSL_NO_MD5 306 if (hash_old == i) { 307 BIO_printf(bio_out, "%08lx\n", 308 X509_NAME_hash_old(X509_CRL_get_issuer(x))); 309 } 310 #endif 311 if (lastupdate == i) { 312 BIO_printf(bio_out, "lastUpdate="); 313 ASN1_TIME_print(bio_out, X509_CRL_get_lastUpdate(x)); 314 BIO_printf(bio_out, "\n"); 315 } 316 if (nextupdate == i) { 317 BIO_printf(bio_out, "nextUpdate="); 318 if (X509_CRL_get_nextUpdate(x)) 319 ASN1_TIME_print(bio_out, X509_CRL_get_nextUpdate(x)); 320 else 321 BIO_printf(bio_out, "NONE"); 322 BIO_printf(bio_out, "\n"); 323 } 324 if (fingerprint == i) { 325 int j; 326 unsigned int n; 327 unsigned char md[EVP_MAX_MD_SIZE]; 328 329 if (!X509_CRL_digest(x, digest, md, &n)) { 330 BIO_printf(bio_err, "out of memory\n"); 331 goto end; 332 } 333 BIO_printf(bio_out, "%s Fingerprint=", 334 OBJ_nid2sn(EVP_MD_type(digest))); 335 for (j = 0; j < (int)n; j++) { 336 BIO_printf(bio_out, "%02X%c", md[j], (j + 1 == (int)n) 337 ? '\n' : ':'); 338 } 339 } 340 } 341 } 342 343 out = BIO_new(BIO_s_file()); 344 if (out == NULL) { 345 ERR_print_errors(bio_err); 346 goto end; 347 } 348 349 if (outfile == NULL) { 350 BIO_set_fp(out, stdout, BIO_NOCLOSE); 351 #ifdef OPENSSL_SYS_VMS 352 { 353 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 354 out = BIO_push(tmpbio, out); 355 } 356 #endif 357 } else { 358 if (BIO_write_filename(out, outfile) <= 0) { 359 perror(outfile); 360 goto end; 361 } 362 } 363 364 if (text) 365 X509_CRL_print(out, x); 366 367 if (noout) { 368 ret = 0; 369 goto end; 370 } 371 372 if (outformat == FORMAT_ASN1) 373 i = (int)i2d_X509_CRL_bio(out, x); 374 else if (outformat == FORMAT_PEM) 375 i = PEM_write_bio_X509_CRL(out, x); 376 else { 377 BIO_printf(bio_err, "bad output format specified for outfile\n"); 378 goto end; 379 } 380 if (!i) { 381 BIO_printf(bio_err, "unable to write CRL\n"); 382 goto end; 383 } 384 ret = 0; 385 end: 386 BIO_free_all(out); 387 BIO_free_all(bio_out); 388 bio_out = NULL; 389 X509_CRL_free(x); 390 if (store) { 391 X509_STORE_CTX_cleanup(&ctx); 392 X509_STORE_free(store); 393 } 394 apps_shutdown(); 395 OPENSSL_EXIT(ret); 396 } 397 398 static X509_CRL *load_crl(char *infile, int format) 399 { 400 X509_CRL *x = NULL; 401 BIO *in = NULL; 402 403 in = BIO_new(BIO_s_file()); 404 if (in == NULL) { 405 ERR_print_errors(bio_err); 406 goto end; 407 } 408 409 if (infile == NULL) 410 BIO_set_fp(in, stdin, BIO_NOCLOSE); 411 else { 412 if (BIO_read_filename(in, infile) <= 0) { 413 perror(infile); 414 goto end; 415 } 416 } 417 if (format == FORMAT_ASN1) 418 x = d2i_X509_CRL_bio(in, NULL); 419 else if (format == FORMAT_PEM) 420 x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL); 421 else { 422 BIO_printf(bio_err, "bad input format specified for input crl\n"); 423 goto end; 424 } 425 if (x == NULL) { 426 BIO_printf(bio_err, "unable to load CRL\n"); 427 ERR_print_errors(bio_err); 428 goto end; 429 } 430 431 end: 432 BIO_free(in); 433 return (x); 434 } 435