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