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 NULL 91 }; 92 93 static X509_CRL *load_crl(char *file, int format); 94 static BIO *bio_out=NULL; 95 96 int MAIN(int, char **); 97 98 int MAIN(int argc, char **argv) 99 { 100 X509_CRL *x=NULL; 101 char *CAfile = NULL, *CApath = NULL; 102 int ret=1,i,num,badops=0; 103 BIO *out=NULL; 104 int informat,outformat; 105 char *infile=NULL,*outfile=NULL; 106 int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0; 107 int fingerprint = 0; 108 char **pp,buf[256]; 109 X509_STORE *store = NULL; 110 X509_STORE_CTX ctx; 111 X509_LOOKUP *lookup = NULL; 112 X509_OBJECT xobj; 113 EVP_PKEY *pkey; 114 int do_ver = 0; 115 const EVP_MD *md_alg,*digest=EVP_md5(); 116 117 apps_startup(); 118 119 if (bio_err == NULL) 120 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 121 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 122 123 if (bio_out == NULL) 124 if ((bio_out=BIO_new(BIO_s_file())) != NULL) 125 { 126 BIO_set_fp(bio_out,stdout,BIO_NOCLOSE); 127 #ifdef VMS 128 { 129 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 130 bio_out = BIO_push(tmpbio, bio_out); 131 } 132 #endif 133 } 134 135 informat=FORMAT_PEM; 136 outformat=FORMAT_PEM; 137 138 argc--; 139 argv++; 140 num=0; 141 while (argc >= 1) 142 { 143 #ifdef undef 144 if (strcmp(*argv,"-p") == 0) 145 { 146 if (--argc < 1) goto bad; 147 if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/ 148 } 149 #endif 150 if (strcmp(*argv,"-inform") == 0) 151 { 152 if (--argc < 1) goto bad; 153 informat=str2fmt(*(++argv)); 154 } 155 else if (strcmp(*argv,"-outform") == 0) 156 { 157 if (--argc < 1) goto bad; 158 outformat=str2fmt(*(++argv)); 159 } 160 else if (strcmp(*argv,"-in") == 0) 161 { 162 if (--argc < 1) goto bad; 163 infile= *(++argv); 164 } 165 else if (strcmp(*argv,"-out") == 0) 166 { 167 if (--argc < 1) goto bad; 168 outfile= *(++argv); 169 } 170 else if (strcmp(*argv,"-CApath") == 0) 171 { 172 if (--argc < 1) goto bad; 173 CApath = *(++argv); 174 do_ver = 1; 175 } 176 else if (strcmp(*argv,"-CAfile") == 0) 177 { 178 if (--argc < 1) goto bad; 179 CAfile = *(++argv); 180 do_ver = 1; 181 } 182 else if (strcmp(*argv,"-verify") == 0) 183 do_ver = 1; 184 else if (strcmp(*argv,"-text") == 0) 185 text = 1; 186 else if (strcmp(*argv,"-hash") == 0) 187 hash= ++num; 188 else if (strcmp(*argv,"-issuer") == 0) 189 issuer= ++num; 190 else if (strcmp(*argv,"-lastupdate") == 0) 191 lastupdate= ++num; 192 else if (strcmp(*argv,"-nextupdate") == 0) 193 nextupdate= ++num; 194 else if (strcmp(*argv,"-noout") == 0) 195 noout= ++num; 196 else if (strcmp(*argv,"-fingerprint") == 0) 197 fingerprint= ++num; 198 else if ((md_alg=EVP_get_digestbyname(*argv + 1))) 199 { 200 /* ok */ 201 digest=md_alg; 202 } 203 else 204 { 205 BIO_printf(bio_err,"unknown option %s\n",*argv); 206 badops=1; 207 break; 208 } 209 argc--; 210 argv++; 211 } 212 213 if (badops) 214 { 215 bad: 216 for (pp=crl_usage; (*pp != NULL); pp++) 217 BIO_printf(bio_err,*pp); 218 goto end; 219 } 220 221 ERR_load_crypto_strings(); 222 x=load_crl(infile,informat); 223 if (x == NULL) { goto end; } 224 225 if(do_ver) { 226 store = X509_STORE_new(); 227 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file()); 228 if (lookup == NULL) goto end; 229 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) 230 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT); 231 232 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir()); 233 if (lookup == NULL) goto end; 234 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) 235 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT); 236 ERR_clear_error(); 237 238 X509_STORE_CTX_init(&ctx, store, NULL, NULL); 239 240 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 241 X509_CRL_get_issuer(x), &xobj); 242 if(i <= 0) { 243 BIO_printf(bio_err, 244 "Error getting CRL issuer certificate\n"); 245 goto end; 246 } 247 pkey = X509_get_pubkey(xobj.data.x509); 248 X509_OBJECT_free_contents(&xobj); 249 if(!pkey) { 250 BIO_printf(bio_err, 251 "Error getting CRL issuer public key\n"); 252 goto end; 253 } 254 i = X509_CRL_verify(x, pkey); 255 EVP_PKEY_free(pkey); 256 if(i < 0) goto end; 257 if(i == 0) BIO_printf(bio_err, "verify failure\n"); 258 else BIO_printf(bio_err, "verify OK\n"); 259 } 260 261 if (num) 262 { 263 for (i=1; i<=num; i++) 264 { 265 if (issuer == i) 266 { 267 X509_NAME_oneline(X509_CRL_get_issuer(x), 268 buf,256); 269 BIO_printf(bio_out,"issuer= %s\n",buf); 270 } 271 272 if (hash == i) 273 { 274 BIO_printf(bio_out,"%08lx\n", 275 X509_NAME_hash(X509_CRL_get_issuer(x))); 276 } 277 if (lastupdate == i) 278 { 279 BIO_printf(bio_out,"lastUpdate="); 280 ASN1_TIME_print(bio_out, 281 X509_CRL_get_lastUpdate(x)); 282 BIO_printf(bio_out,"\n"); 283 } 284 if (nextupdate == i) 285 { 286 BIO_printf(bio_out,"nextUpdate="); 287 if (X509_CRL_get_nextUpdate(x)) 288 ASN1_TIME_print(bio_out, 289 X509_CRL_get_nextUpdate(x)); 290 else 291 BIO_printf(bio_out,"NONE"); 292 BIO_printf(bio_out,"\n"); 293 } 294 if (fingerprint == i) 295 { 296 int j; 297 unsigned int n; 298 unsigned char md[EVP_MAX_MD_SIZE]; 299 300 if (!X509_CRL_digest(x,digest,md,&n)) 301 { 302 BIO_printf(bio_err,"out of memory\n"); 303 goto end; 304 } 305 BIO_printf(bio_out,"%s Fingerprint=", 306 OBJ_nid2sn(EVP_MD_type(digest))); 307 for (j=0; j<(int)n; j++) 308 { 309 BIO_printf(bio_out,"%02X%c",md[j], 310 (j+1 == (int)n) 311 ?'\n':':'); 312 } 313 } 314 } 315 } 316 317 out=BIO_new(BIO_s_file()); 318 if (out == NULL) 319 { 320 ERR_print_errors(bio_err); 321 goto end; 322 } 323 324 if (outfile == NULL) 325 { 326 BIO_set_fp(out,stdout,BIO_NOCLOSE); 327 #ifdef VMS 328 { 329 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 330 out = BIO_push(tmpbio, out); 331 } 332 #endif 333 } 334 else 335 { 336 if (BIO_write_filename(out,outfile) <= 0) 337 { 338 perror(outfile); 339 goto end; 340 } 341 } 342 343 if (text) X509_CRL_print(out, x); 344 345 if (noout) goto end; 346 347 if (outformat == FORMAT_ASN1) 348 i=(int)i2d_X509_CRL_bio(out,x); 349 else if (outformat == FORMAT_PEM) 350 i=PEM_write_bio_X509_CRL(out,x); 351 else 352 { 353 BIO_printf(bio_err,"bad output format specified for outfile\n"); 354 goto end; 355 } 356 if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; } 357 ret=0; 358 end: 359 BIO_free_all(out); 360 BIO_free_all(bio_out); 361 bio_out=NULL; 362 X509_CRL_free(x); 363 if(store) { 364 X509_STORE_CTX_cleanup(&ctx); 365 X509_STORE_free(store); 366 } 367 EXIT(ret); 368 } 369 370 static X509_CRL *load_crl(char *infile, int format) 371 { 372 X509_CRL *x=NULL; 373 BIO *in=NULL; 374 375 in=BIO_new(BIO_s_file()); 376 if (in == NULL) 377 { 378 ERR_print_errors(bio_err); 379 goto end; 380 } 381 382 if (infile == NULL) 383 BIO_set_fp(in,stdin,BIO_NOCLOSE); 384 else 385 { 386 if (BIO_read_filename(in,infile) <= 0) 387 { 388 perror(infile); 389 goto end; 390 } 391 } 392 if (format == FORMAT_ASN1) 393 x=d2i_X509_CRL_bio(in,NULL); 394 else if (format == FORMAT_PEM) 395 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL); 396 else { 397 BIO_printf(bio_err,"bad input format specified for input crl\n"); 398 goto end; 399 } 400 if (x == NULL) 401 { 402 BIO_printf(bio_err,"unable to load CRL\n"); 403 ERR_print_errors(bio_err); 404 goto end; 405 } 406 407 end: 408 BIO_free(in); 409 return(x); 410 } 411 412