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