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 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 " -issuer - print issuer DN\n", 85 " -lastupdate - lastUpdate field\n", 86 " -nextupdate - nextUpdate field\n", 87 " -noout - no CRL output\n", 88 " -CAfile name - verify CRL using certificates in file \"name\"\n", 89 " -CApath dir - verify CRL using certificates in \"dir\"\n", 90 " -nameopt arg - various certificate name options\n", 91 NULL 92 }; 93 94 static X509_CRL *load_crl(char *file, int format); 95 static BIO *bio_out=NULL; 96 97 int MAIN(int, char **); 98 99 int MAIN(int argc, char **argv) 100 { 101 unsigned long nmflag = 0; 102 X509_CRL *x=NULL; 103 char *CAfile = NULL, *CApath = NULL; 104 int ret=1,i,num,badops=0; 105 BIO *out=NULL; 106 int informat,outformat; 107 char *infile=NULL,*outfile=NULL; 108 int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0; 109 int fingerprint = 0; 110 char **pp; 111 X509_STORE *store = NULL; 112 X509_STORE_CTX ctx; 113 X509_LOOKUP *lookup = NULL; 114 X509_OBJECT xobj; 115 EVP_PKEY *pkey; 116 int do_ver = 0; 117 const EVP_MD *md_alg,*digest=EVP_md5(); 118 119 apps_startup(); 120 121 if (bio_err == NULL) 122 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 123 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 124 125 if (!load_config(bio_err, NULL)) 126 goto end; 127 128 if (bio_out == NULL) 129 if ((bio_out=BIO_new(BIO_s_file())) != NULL) 130 { 131 BIO_set_fp(bio_out,stdout,BIO_NOCLOSE); 132 #ifdef OPENSSL_SYS_VMS 133 { 134 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 135 bio_out = BIO_push(tmpbio, bio_out); 136 } 137 #endif 138 } 139 140 informat=FORMAT_PEM; 141 outformat=FORMAT_PEM; 142 143 argc--; 144 argv++; 145 num=0; 146 while (argc >= 1) 147 { 148 #ifdef undef 149 if (strcmp(*argv,"-p") == 0) 150 { 151 if (--argc < 1) goto bad; 152 if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/ 153 } 154 #endif 155 if (strcmp(*argv,"-inform") == 0) 156 { 157 if (--argc < 1) goto bad; 158 informat=str2fmt(*(++argv)); 159 } 160 else if (strcmp(*argv,"-outform") == 0) 161 { 162 if (--argc < 1) goto bad; 163 outformat=str2fmt(*(++argv)); 164 } 165 else if (strcmp(*argv,"-in") == 0) 166 { 167 if (--argc < 1) goto bad; 168 infile= *(++argv); 169 } 170 else if (strcmp(*argv,"-out") == 0) 171 { 172 if (--argc < 1) goto bad; 173 outfile= *(++argv); 174 } 175 else if (strcmp(*argv,"-CApath") == 0) 176 { 177 if (--argc < 1) goto bad; 178 CApath = *(++argv); 179 do_ver = 1; 180 } 181 else if (strcmp(*argv,"-CAfile") == 0) 182 { 183 if (--argc < 1) goto bad; 184 CAfile = *(++argv); 185 do_ver = 1; 186 } 187 else if (strcmp(*argv,"-verify") == 0) 188 do_ver = 1; 189 else if (strcmp(*argv,"-text") == 0) 190 text = 1; 191 else if (strcmp(*argv,"-hash") == 0) 192 hash= ++num; 193 else if (strcmp(*argv,"-nameopt") == 0) 194 { 195 if (--argc < 1) goto bad; 196 if (!set_name_ex(&nmflag, *(++argv))) goto bad; 197 } 198 else if (strcmp(*argv,"-issuer") == 0) 199 issuer= ++num; 200 else if (strcmp(*argv,"-lastupdate") == 0) 201 lastupdate= ++num; 202 else if (strcmp(*argv,"-nextupdate") == 0) 203 nextupdate= ++num; 204 else if (strcmp(*argv,"-noout") == 0) 205 noout= ++num; 206 else if (strcmp(*argv,"-fingerprint") == 0) 207 fingerprint= ++num; 208 else if ((md_alg=EVP_get_digestbyname(*argv + 1))) 209 { 210 /* ok */ 211 digest=md_alg; 212 } 213 else 214 { 215 BIO_printf(bio_err,"unknown option %s\n",*argv); 216 badops=1; 217 break; 218 } 219 argc--; 220 argv++; 221 } 222 223 if (badops) 224 { 225 bad: 226 for (pp=crl_usage; (*pp != NULL); pp++) 227 BIO_printf(bio_err,"%s",*pp); 228 goto end; 229 } 230 231 ERR_load_crypto_strings(); 232 x=load_crl(infile,informat); 233 if (x == NULL) { goto end; } 234 235 if(do_ver) { 236 store = X509_STORE_new(); 237 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file()); 238 if (lookup == NULL) goto end; 239 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) 240 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT); 241 242 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir()); 243 if (lookup == NULL) goto end; 244 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) 245 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT); 246 ERR_clear_error(); 247 248 if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) { 249 BIO_printf(bio_err, 250 "Error initialising X509 store\n"); 251 goto end; 252 } 253 254 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 255 X509_CRL_get_issuer(x), &xobj); 256 if(i <= 0) { 257 BIO_printf(bio_err, 258 "Error getting CRL issuer certificate\n"); 259 goto end; 260 } 261 pkey = X509_get_pubkey(xobj.data.x509); 262 X509_OBJECT_free_contents(&xobj); 263 if(!pkey) { 264 BIO_printf(bio_err, 265 "Error getting CRL issuer public key\n"); 266 goto end; 267 } 268 i = X509_CRL_verify(x, pkey); 269 EVP_PKEY_free(pkey); 270 if(i < 0) goto end; 271 if(i == 0) BIO_printf(bio_err, "verify failure\n"); 272 else BIO_printf(bio_err, "verify OK\n"); 273 } 274 275 if (num) 276 { 277 for (i=1; i<=num; i++) 278 { 279 if (issuer == i) 280 { 281 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag); 282 } 283 284 if (hash == i) 285 { 286 BIO_printf(bio_out,"%08lx\n", 287 X509_NAME_hash(X509_CRL_get_issuer(x))); 288 } 289 if (lastupdate == i) 290 { 291 BIO_printf(bio_out,"lastUpdate="); 292 ASN1_TIME_print(bio_out, 293 X509_CRL_get_lastUpdate(x)); 294 BIO_printf(bio_out,"\n"); 295 } 296 if (nextupdate == i) 297 { 298 BIO_printf(bio_out,"nextUpdate="); 299 if (X509_CRL_get_nextUpdate(x)) 300 ASN1_TIME_print(bio_out, 301 X509_CRL_get_nextUpdate(x)); 302 else 303 BIO_printf(bio_out,"NONE"); 304 BIO_printf(bio_out,"\n"); 305 } 306 if (fingerprint == i) 307 { 308 int j; 309 unsigned int n; 310 unsigned char md[EVP_MAX_MD_SIZE]; 311 312 if (!X509_CRL_digest(x,digest,md,&n)) 313 { 314 BIO_printf(bio_err,"out of memory\n"); 315 goto end; 316 } 317 BIO_printf(bio_out,"%s Fingerprint=", 318 OBJ_nid2sn(EVP_MD_type(digest))); 319 for (j=0; j<(int)n; j++) 320 { 321 BIO_printf(bio_out,"%02X%c",md[j], 322 (j+1 == (int)n) 323 ?'\n':':'); 324 } 325 } 326 } 327 } 328 329 out=BIO_new(BIO_s_file()); 330 if (out == NULL) 331 { 332 ERR_print_errors(bio_err); 333 goto end; 334 } 335 336 if (outfile == NULL) 337 { 338 BIO_set_fp(out,stdout,BIO_NOCLOSE); 339 #ifdef OPENSSL_SYS_VMS 340 { 341 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 342 out = BIO_push(tmpbio, out); 343 } 344 #endif 345 } 346 else 347 { 348 if (BIO_write_filename(out,outfile) <= 0) 349 { 350 perror(outfile); 351 goto end; 352 } 353 } 354 355 if (text) X509_CRL_print(out, x); 356 357 if (noout) goto end; 358 359 if (outformat == FORMAT_ASN1) 360 i=(int)i2d_X509_CRL_bio(out,x); 361 else if (outformat == FORMAT_PEM) 362 i=PEM_write_bio_X509_CRL(out,x); 363 else 364 { 365 BIO_printf(bio_err,"bad output format specified for outfile\n"); 366 goto end; 367 } 368 if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; } 369 ret=0; 370 end: 371 BIO_free_all(out); 372 BIO_free_all(bio_out); 373 bio_out=NULL; 374 X509_CRL_free(x); 375 if(store) { 376 X509_STORE_CTX_cleanup(&ctx); 377 X509_STORE_free(store); 378 } 379 apps_shutdown(); 380 OPENSSL_EXIT(ret); 381 } 382 383 static X509_CRL *load_crl(char *infile, int format) 384 { 385 X509_CRL *x=NULL; 386 BIO *in=NULL; 387 388 in=BIO_new(BIO_s_file()); 389 if (in == NULL) 390 { 391 ERR_print_errors(bio_err); 392 goto end; 393 } 394 395 if (infile == NULL) 396 BIO_set_fp(in,stdin,BIO_NOCLOSE); 397 else 398 { 399 if (BIO_read_filename(in,infile) <= 0) 400 { 401 perror(infile); 402 goto end; 403 } 404 } 405 if (format == FORMAT_ASN1) 406 x=d2i_X509_CRL_bio(in,NULL); 407 else if (format == FORMAT_PEM) 408 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL); 409 else { 410 BIO_printf(bio_err,"bad input format specified for input crl\n"); 411 goto end; 412 } 413 if (x == NULL) 414 { 415 BIO_printf(bio_err,"unable to load CRL\n"); 416 ERR_print_errors(bio_err); 417 goto end; 418 } 419 420 end: 421 BIO_free(in); 422 return(x); 423 } 424 425