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 " -fingerprint    - print the crl fingerprint\n",
  85 " -issuer         - print issuer DN\n",
  86 " -lastupdate     - lastUpdate field\n",
  87 " -nextupdate     - nextUpdate field\n",
  88 " -noout          - no CRL output\n",
  89 " -CAfile  name   - verify CRL using certificates in file \"name\"\n",
  90 " -CApath  dir    - verify CRL using certificates in \"dir\"\n",
  91 " -nameopt arg    - various certificate name options\n",
  92 NULL
  93 };
  94
  95 static X509_CRL *load_crl(char *file, int format);
  96 static BIO *bio_out=NULL;
  97
  98 int MAIN(int, char **);
  99
 100 int MAIN(int argc, char **argv)
 101         {
 102         unsigned long nmflag = 0;
 103         X509_CRL *x=NULL;
 104         char *CAfile = NULL, *CApath = NULL;
 105         int ret=1,i,num,badops=0;
 106         BIO *out=NULL;
 107         int informat,outformat;
 108         char *infile=NULL,*outfile=NULL;
 109         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
 110         int fingerprint = 0;
 111         char **pp;
 112         X509_STORE *store = NULL;
 113         X509_STORE_CTX ctx;
 114         X509_LOOKUP *lookup = NULL;
 115         X509_OBJECT xobj;
 116         EVP_PKEY *pkey;
 117         int do_ver = 0;
 118         const EVP_MD *md_alg,*digest=EVP_md5();
 119
 120         apps_startup();
 121
 122         if (bio_err == NULL)
 123                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 124                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 125
 126         if (!load_config(bio_err, NULL))
 127                 goto end;
 128
 129         if (bio_out == NULL)
 130                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
 131                         {
 132                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
 133 #ifdef OPENSSL_SYS_VMS
 134                         {
 135                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 136                         bio_out = BIO_push(tmpbio, bio_out);
 137                         }
 138 #endif
 139                         }
 140
 141         informat=FORMAT_PEM;
 142         outformat=FORMAT_PEM;
 143
 144         argc--;
 145         argv++;
 146         num=0;
 147         while (argc >= 1)
 148                 {
 149 #ifdef undef
 150                 if      (strcmp(*argv,"-p") == 0)
 151                         {
 152                         if (--argc < 1) goto bad;
 153                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
 154                         }
 155 #endif
 156                 if      (strcmp(*argv,"-inform") == 0)
 157                         {
 158                         if (--argc < 1) goto bad;
 159                         informat=str2fmt(*(++argv));
 160                         }
 161                 else if (strcmp(*argv,"-outform") == 0)
 162                         {
 163                         if (--argc < 1) goto bad;
 164                         outformat=str2fmt(*(++argv));
 165                         }
 166                 else if (strcmp(*argv,"-in") == 0)
 167                         {
 168                         if (--argc < 1) goto bad;
 169                         infile= *(++argv);
 170                         }
 171                 else if (strcmp(*argv,"-out") == 0)
 172                         {
 173                         if (--argc < 1) goto bad;
 174                         outfile= *(++argv);
 175                         }
 176                 else if (strcmp(*argv,"-CApath") == 0)
 177                         {
 178                         if (--argc < 1) goto bad;
 179                         CApath = *(++argv);
 180                         do_ver = 1;
 181                         }
 182                 else if (strcmp(*argv,"-CAfile") == 0)
 183                         {
 184                         if (--argc < 1) goto bad;
 185                         CAfile = *(++argv);
 186                         do_ver = 1;
 187                         }
 188                 else if (strcmp(*argv,"-verify") == 0)
 189                         do_ver = 1;
 190                 else if (strcmp(*argv,"-text") == 0)
 191                         text = 1;
 192                 else if (strcmp(*argv,"-hash") == 0)
 193                         hash= ++num;
 194                 else if (strcmp(*argv,"-nameopt") == 0)
 195                         {
 196                         if (--argc < 1) goto bad;
 197                         if (!set_name_ex(&nmflag, *(++argv))) goto bad;
 198                         }
 199                 else if (strcmp(*argv,"-issuer") == 0)
 200                         issuer= ++num;
 201                 else if (strcmp(*argv,"-lastupdate") == 0)
 202                         lastupdate= ++num;
 203                 else if (strcmp(*argv,"-nextupdate") == 0)
 204                         nextupdate= ++num;
 205                 else if (strcmp(*argv,"-noout") == 0)
 206                         noout= ++num;
 207                 else if (strcmp(*argv,"-fingerprint") == 0)
 208                         fingerprint= ++num;
 209                 else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
 210                         {
 211                         /* ok */
 212                         digest=md_alg;
 213                         }
 214                 else
 215                         {
 216                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 217                         badops=1;
 218                         break;
 219                         }
 220                 argc--;
 221                 argv++;
 222                 }
 223
 224         if (badops)
 225                 {
 226 bad:
 227                 for (pp=crl_usage; (*pp != NULL); pp++)
 228                         BIO_printf(bio_err,"%s",*pp);
 229                 goto end;
 230                 }
 231
 232         ERR_load_crypto_strings();
 233         x=load_crl(infile,informat);
 234         if (x == NULL) { goto end; }
 235
 236         if(do_ver) {
 237                 store = X509_STORE_new();
 238                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
 239                 if (lookup == NULL) goto end;
 240                 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
 241                         X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
 242
 243                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
 244                 if (lookup == NULL) goto end;
 245                 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
 246                         X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
 247                 ERR_clear_error();
 248
 249                 if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
 250                         BIO_printf(bio_err,
 251                                 "Error initialising X509 store\n");
 252                         goto end;
 253                 }
 254
 255                 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509,
 256                                         X509_CRL_get_issuer(x), &xobj);
 257                 if(i <= 0) {
 258                         BIO_printf(bio_err,
 259                                 "Error getting CRL issuer certificate\n");
 260                         goto end;
 261                 }
 262                 pkey = X509_get_pubkey(xobj.data.x509);
 263                 X509_OBJECT_free_contents(&xobj);
 264                 if(!pkey) {
 265                         BIO_printf(bio_err,
 266                                 "Error getting CRL issuer public key\n");
 267                         goto end;
 268                 }
 269                 i = X509_CRL_verify(x, pkey);
 270                 EVP_PKEY_free(pkey);
 271                 if(i < 0) goto end;
 272                 if(i == 0) BIO_printf(bio_err, "verify failure\n");
 273                 else BIO_printf(bio_err, "verify OK\n");
 274         }
 275
 276         if (num)
 277                 {
 278                 for (i=1; i<=num; i++)
 279                         {
 280                         if (issuer == i)
 281                                 {
 282                                 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag);
 283                                 }
 284
 285                         if (hash == i)
 286                                 {
 287                                 BIO_printf(bio_out,"%08lx\n",
 288                                         X509_NAME_hash(X509_CRL_get_issuer(x)));
 289                                 }
 290                         if (lastupdate == i)
 291                                 {
 292                                 BIO_printf(bio_out,"lastUpdate=");
 293                                 ASN1_TIME_print(bio_out,
 294                                                 X509_CRL_get_lastUpdate(x));
 295                                 BIO_printf(bio_out,"\n");
 296                                 }
 297                         if (nextupdate == i)
 298                                 {
 299                                 BIO_printf(bio_out,"nextUpdate=");
 300                                 if (X509_CRL_get_nextUpdate(x))
 301                                         ASN1_TIME_print(bio_out,
 302                                                 X509_CRL_get_nextUpdate(x));
 303                                 else
 304                                         BIO_printf(bio_out,"NONE");
 305                                 BIO_printf(bio_out,"\n");
 306                                 }
 307                         if (fingerprint == i)
 308                                 {
 309                                 int j;
 310                                 unsigned int n;
 311                                 unsigned char md[EVP_MAX_MD_SIZE];
 312
 313                                 if (!X509_CRL_digest(x,digest,md,&n))
 314                                         {
 315                                         BIO_printf(bio_err,"out of memory\n");
 316                                         goto end;
 317                                         }
 318                                 BIO_printf(bio_out,"%s Fingerprint=",
 319                                                 OBJ_nid2sn(EVP_MD_type(digest)));
 320                                 for (j=0; j<(int)n; j++)
 321                                         {
 322                                         BIO_printf(bio_out,"%02X%c",md[j],
 323                                                 (j+1 == (int)n)
 324                                                 ?'\n':':');
 325                                         }
 326                                 }
 327                         }
 328                 }
 329
 330         out=BIO_new(BIO_s_file());
 331         if (out == NULL)
 332                 {
 333                 ERR_print_errors(bio_err);
 334                 goto end;
 335                 }
 336
 337         if (outfile == NULL)
 338                 {
 339                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 340 #ifdef OPENSSL_SYS_VMS
 341                 {
 342                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 343                 out = BIO_push(tmpbio, out);
 344                 }
 345 #endif
 346                 }
 347         else
 348                 {
 349                 if (BIO_write_filename(out,outfile) <= 0)
 350                         {
 351                         perror(outfile);
 352                         goto end;
 353                         }
 354                 }
 355
 356         if (text) X509_CRL_print(out, x);
 357
 358         if (noout)
 359                 {
 360                 ret = 0;
 361                 goto end;
 362                 }
 363
 364         if      (outformat == FORMAT_ASN1)
 365                 i=(int)i2d_X509_CRL_bio(out,x);
 366         else if (outformat == FORMAT_PEM)
 367                 i=PEM_write_bio_X509_CRL(out,x);
 368         else
 369                 {
 370                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 371                 goto end;
 372                 }
 373         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
 374         ret=0;
 375 end:
 376         BIO_free_all(out);
 377         BIO_free_all(bio_out);
 378         bio_out=NULL;
 379         X509_CRL_free(x);
 380         if(store) {
 381                 X509_STORE_CTX_cleanup(&ctx);
 382                 X509_STORE_free(store);
 383         }
 384         apps_shutdown();
 385         OPENSSL_EXIT(ret);
 386         }
 387
 388 static X509_CRL *load_crl(char *infile, int format)
 389         {
 390         X509_CRL *x=NULL;
 391         BIO *in=NULL;
 392
 393         in=BIO_new(BIO_s_file());
 394         if (in == NULL)
 395                 {
 396                 ERR_print_errors(bio_err);
 397                 goto end;
 398                 }
 399
 400         if (infile == NULL)
 401                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 402         else
 403                 {
 404                 if (BIO_read_filename(in,infile) <= 0)
 405                         {
 406                         perror(infile);
 407                         goto end;
 408                         }
 409                 }
 410         if      (format == FORMAT_ASN1)
 411                 x=d2i_X509_CRL_bio(in,NULL);
 412         else if (format == FORMAT_PEM)
 413                 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
 414         else    {
 415                 BIO_printf(bio_err,"bad input format specified for input crl\n");
 416                 goto end;
 417                 }
 418         if (x == NULL)
 419                 {
 420                 BIO_printf(bio_err,"unable to load CRL\n");
 421                 ERR_print_errors(bio_err);
 422                 goto end;
 423                 }
 424
 425 end:
 426         BIO_free(in);
 427         return(x);
 428         }
 429