apps/crl.c

   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 (one of DER, TXT 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 argc, char **argv)
  97         {
  98         X509_CRL *x=NULL;
  99         char *CAfile = NULL, *CApath = NULL;
 100         int ret=1,i,num,badops=0;
 101         BIO *out=NULL;
 102         int informat,outformat;
 103         char *infile=NULL,*outfile=NULL;
 104         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
 105         char **pp,buf[256];
 106         X509_STORE *store = NULL;
 107         X509_STORE_CTX ctx;
 108         X509_LOOKUP *lookup = NULL;
 109         X509_OBJECT xobj;
 110         EVP_PKEY *pkey;
 111         int do_ver = 0;
 112
 113         apps_startup();
 114
 115         if (bio_err == NULL)
 116                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 117                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 118
 119         if (bio_out == NULL)
 120                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
 121                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
 122
 123         informat=FORMAT_PEM;
 124         outformat=FORMAT_PEM;
 125
 126         argc--;
 127         argv++;
 128         num=0;
 129         while (argc >= 1)
 130                 {
 131 #ifdef undef
 132                 if      (strcmp(*argv,"-p") == 0)
 133                         {
 134                         if (--argc < 1) goto bad;
 135                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
 136                         }
 137 #endif
 138                 if      (strcmp(*argv,"-inform") == 0)
 139                         {
 140                         if (--argc < 1) goto bad;
 141                         informat=str2fmt(*(++argv));
 142                         }
 143                 else if (strcmp(*argv,"-outform") == 0)
 144                         {
 145                         if (--argc < 1) goto bad;
 146                         outformat=str2fmt(*(++argv));
 147                         }
 148                 else if (strcmp(*argv,"-in") == 0)
 149                         {
 150                         if (--argc < 1) goto bad;
 151                         infile= *(++argv);
 152                         }
 153                 else if (strcmp(*argv,"-out") == 0)
 154                         {
 155                         if (--argc < 1) goto bad;
 156                         outfile= *(++argv);
 157                         }
 158                 else if (strcmp(*argv,"-CApath") == 0)
 159                         {
 160                         if (--argc < 1) goto bad;
 161                         CApath = *(++argv);
 162                         do_ver = 1;
 163                         }
 164                 else if (strcmp(*argv,"-CAfile") == 0)
 165                         {
 166                         if (--argc < 1) goto bad;
 167                         CAfile = *(++argv);
 168                         do_ver = 1;
 169                         }
 170                 else if (strcmp(*argv,"-verify") == 0)
 171                         do_ver = 1;
 172                 else if (strcmp(*argv,"-text") == 0)
 173                         text = 1;
 174                 else if (strcmp(*argv,"-hash") == 0)
 175                         hash= ++num;
 176                 else if (strcmp(*argv,"-issuer") == 0)
 177                         issuer= ++num;
 178                 else if (strcmp(*argv,"-lastupdate") == 0)
 179                         lastupdate= ++num;
 180                 else if (strcmp(*argv,"-nextupdate") == 0)
 181                         nextupdate= ++num;
 182                 else if (strcmp(*argv,"-noout") == 0)
 183                         noout= ++num;
 184                 else
 185                         {
 186                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 187                         badops=1;
 188                         break;
 189                         }
 190                 argc--;
 191                 argv++;
 192                 }
 193
 194         if (badops)
 195                 {
 196 bad:
 197                 for (pp=crl_usage; (*pp != NULL); pp++)
 198                         BIO_printf(bio_err,*pp);
 199                 goto end;
 200                 }
 201
 202         ERR_load_crypto_strings();
 203         X509V3_add_standard_extensions();
 204         x=load_crl(infile,informat);
 205         if (x == NULL) { goto end; }
 206
 207         if(do_ver) {
 208                 store = X509_STORE_new();
 209                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
 210                 if (lookup == NULL) goto end;
 211                 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
 212                         X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
 213
 214                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
 215                 if (lookup == NULL) goto end;
 216                 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
 217                         X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
 218                 ERR_clear_error();
 219
 220                 X509_STORE_CTX_init(&ctx, store, NULL, NULL);
 221
 222                 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509,
 223                                         X509_CRL_get_issuer(x), &xobj);
 224                 if(i <= 0) {
 225                         BIO_printf(bio_err,
 226                                 "Error getting CRL issuer certificate\n");
 227                         goto end;
 228                 }
 229                 pkey = X509_get_pubkey(xobj.data.x509);
 230                 X509_OBJECT_free_contents(&xobj);
 231                 if(!pkey) {
 232                         BIO_printf(bio_err,
 233                                 "Error getting CRL issuer public key\n");
 234                         goto end;
 235                 }
 236                 i = X509_CRL_verify(x, pkey);
 237                 EVP_PKEY_free(pkey);
 238                 if(i < 0) goto end;
 239                 if(i == 0) BIO_printf(bio_err, "verify failure\n");
 240                 else BIO_printf(bio_err, "verify OK\n");
 241         }
 242
 243         if (num)
 244                 {
 245                 for (i=1; i<=num; i++)
 246                         {
 247                         if (issuer == i)
 248                                 {
 249                                 X509_NAME_oneline(X509_CRL_get_issuer(x),
 250                                                                 buf,256);
 251                                 BIO_printf(bio_out,"issuer= %s\n",buf);
 252                                 }
 253
 254                         if (hash == i)
 255                                 {
 256                                 BIO_printf(bio_out,"%08lx\n",
 257                                         X509_NAME_hash(X509_CRL_get_issuer(x)));
 258                                 }
 259                         if (lastupdate == i)
 260                                 {
 261                                 BIO_printf(bio_out,"lastUpdate=");
 262                                 ASN1_TIME_print(bio_out,
 263                                                 X509_CRL_get_lastUpdate(x));
 264                                 BIO_printf(bio_out,"\n");
 265                                 }
 266                         if (nextupdate == i)
 267                                 {
 268                                 BIO_printf(bio_out,"nextUpdate=");
 269                                 if (X509_CRL_get_nextUpdate(x))
 270                                         ASN1_TIME_print(bio_out,
 271                                                 X509_CRL_get_nextUpdate(x));
 272                                 else
 273                                         BIO_printf(bio_out,"NONE");
 274                                 BIO_printf(bio_out,"\n");
 275                                 }
 276                         }
 277                 }
 278
 279         out=BIO_new(BIO_s_file());
 280         if (out == NULL)
 281                 {
 282                 ERR_print_errors(bio_err);
 283                 goto end;
 284                 }
 285
 286         if (outfile == NULL)
 287                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 288         else
 289                 {
 290                 if (BIO_write_filename(out,outfile) <= 0)
 291                         {
 292                         perror(outfile);
 293                         goto end;
 294                         }
 295                 }
 296
 297         if (text) X509_CRL_print(out, x);
 298
 299         if (noout) goto end;
 300
 301         if      (outformat == FORMAT_ASN1)
 302                 i=(int)i2d_X509_CRL_bio(out,x);
 303         else if (outformat == FORMAT_PEM)
 304                 i=PEM_write_bio_X509_CRL(out,x);
 305         else
 306                 {
 307                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 308                 goto end;
 309                 }
 310         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
 311         ret=0;
 312 end:
 313         BIO_free(out);
 314         BIO_free(bio_out);
 315         bio_out=NULL;
 316         X509_CRL_free(x);
 317         if(store) {
 318                 X509_STORE_CTX_cleanup(&ctx);
 319                 X509_STORE_free(store);
 320         }
 321         X509V3_EXT_cleanup();
 322         EXIT(ret);
 323         }
 324
 325 static X509_CRL *load_crl(char *infile, int format)
 326         {
 327         X509_CRL *x=NULL;
 328         BIO *in=NULL;
 329
 330         in=BIO_new(BIO_s_file());
 331         if (in == NULL)
 332                 {
 333                 ERR_print_errors(bio_err);
 334                 goto end;
 335                 }
 336
 337         if (infile == NULL)
 338                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 339         else
 340                 {
 341                 if (BIO_read_filename(in,infile) <= 0)
 342                         {
 343                         perror(infile);
 344                         goto end;
 345                         }
 346                 }
 347         if      (format == FORMAT_ASN1)
 348                 x=d2i_X509_CRL_bio(in,NULL);
 349         else if (format == FORMAT_PEM)
 350                 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
 351         else    {
 352                 BIO_printf(bio_err,"bad input format specified for input crl\n");
 353                 goto end;
 354                 }
 355         if (x == NULL)
 356                 {
 357                 BIO_printf(bio_err,"unable to load CRL\n");
 358                 ERR_print_errors(bio_err);
 359                 goto end;
 360                 }
 361
 362 end:
 363         BIO_free(in);
 364         return(x);
 365         }
 366