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 const 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 " -crlnumber      - print CRL number\n",
  89 " -noout          - no CRL output\n",
  90 " -CAfile  name   - verify CRL using certificates in file \"name\"\n",
  91 " -CApath  dir    - verify CRL using certificates in \"dir\"\n",
  92 " -nameopt arg    - various certificate name options\n",
  93 NULL
  94 };
  95
  96 static X509_CRL *load_crl(char *file, int format);
  97 static BIO *bio_out=NULL;
  98
  99 int MAIN(int, char **);
 100
 101 int MAIN(int argc, char **argv)
 102         {
 103         unsigned long nmflag = 0;
 104         X509_CRL *x=NULL;
 105         char *CAfile = NULL, *CApath = NULL;
 106         int ret=1,i,num,badops=0;
 107         BIO *out=NULL;
 108         int informat,outformat;
 109         char *infile=NULL,*outfile=NULL;
 110         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
 111         int fingerprint = 0, crlnumber = 0;
 112         const char **pp;
 113         X509_STORE *store = NULL;
 114         X509_STORE_CTX ctx;
 115         X509_LOOKUP *lookup = NULL;
 116         X509_OBJECT xobj;
 117         EVP_PKEY *pkey;
 118         int do_ver = 0;
 119         const EVP_MD *md_alg,*digest=EVP_sha1();
 120
 121         apps_startup();
 122
 123         if (bio_err == NULL)
 124                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 125                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 126
 127         if (!load_config(bio_err, NULL))
 128                 goto end;
 129
 130         if (bio_out == NULL)
 131                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
 132                         {
 133                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
 134 #ifdef OPENSSL_SYS_VMS
 135                         {
 136                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 137                         bio_out = BIO_push(tmpbio, bio_out);
 138                         }
 139 #endif
 140                         }
 141
 142         informat=FORMAT_PEM;
 143         outformat=FORMAT_PEM;
 144
 145         argc--;
 146         argv++;
 147         num=0;
 148         while (argc >= 1)
 149                 {
 150 #ifdef undef
 151                 if      (strcmp(*argv,"-p") == 0)
 152                         {
 153                         if (--argc < 1) goto bad;
 154                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
 155                         }
 156 #endif
 157                 if      (strcmp(*argv,"-inform") == 0)
 158                         {
 159                         if (--argc < 1) goto bad;
 160                         informat=str2fmt(*(++argv));
 161                         }
 162                 else if (strcmp(*argv,"-outform") == 0)
 163                         {
 164                         if (--argc < 1) goto bad;
 165                         outformat=str2fmt(*(++argv));
 166                         }
 167                 else if (strcmp(*argv,"-in") == 0)
 168                         {
 169                         if (--argc < 1) goto bad;
 170                         infile= *(++argv);
 171                         }
 172                 else if (strcmp(*argv,"-out") == 0)
 173                         {
 174                         if (--argc < 1) goto bad;
 175                         outfile= *(++argv);
 176                         }
 177                 else if (strcmp(*argv,"-CApath") == 0)
 178                         {
 179                         if (--argc < 1) goto bad;
 180                         CApath = *(++argv);
 181                         do_ver = 1;
 182                         }
 183                 else if (strcmp(*argv,"-CAfile") == 0)
 184                         {
 185                         if (--argc < 1) goto bad;
 186                         CAfile = *(++argv);
 187                         do_ver = 1;
 188                         }
 189                 else if (strcmp(*argv,"-verify") == 0)
 190                         do_ver = 1;
 191                 else if (strcmp(*argv,"-text") == 0)
 192                         text = 1;
 193                 else if (strcmp(*argv,"-hash") == 0)
 194                         hash= ++num;
 195                 else if (strcmp(*argv,"-nameopt") == 0)
 196                         {
 197                         if (--argc < 1) goto bad;
 198                         if (!set_name_ex(&nmflag, *(++argv))) goto bad;
 199                         }
 200                 else if (strcmp(*argv,"-issuer") == 0)
 201                         issuer= ++num;
 202                 else if (strcmp(*argv,"-lastupdate") == 0)
 203                         lastupdate= ++num;
 204                 else if (strcmp(*argv,"-nextupdate") == 0)
 205                         nextupdate= ++num;
 206                 else if (strcmp(*argv,"-noout") == 0)
 207                         noout= ++num;
 208                 else if (strcmp(*argv,"-fingerprint") == 0)
 209                         fingerprint= ++num;
 210                 else if (strcmp(*argv,"-crlnumber") == 0)
 211                         crlnumber= ++num;
 212                 else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
 213                         {
 214                         /* ok */
 215                         digest=md_alg;
 216                         }
 217                 else
 218                         {
 219                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 220                         badops=1;
 221                         break;
 222                         }
 223                 argc--;
 224                 argv++;
 225                 }
 226
 227         if (badops)
 228                 {
 229 bad:
 230                 for (pp=crl_usage; (*pp != NULL); pp++)
 231                         BIO_printf(bio_err,"%s",*pp);
 232                 goto end;
 233                 }
 234
 235         ERR_load_crypto_strings();
 236         x=load_crl(infile,informat);
 237         if (x == NULL) { goto end; }
 238
 239         if(do_ver) {
 240                 store = X509_STORE_new();
 241                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
 242                 if (lookup == NULL) goto end;
 243                 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
 244                         X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
 245
 246                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
 247                 if (lookup == NULL) goto end;
 248                 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
 249                         X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
 250                 ERR_clear_error();
 251
 252                 if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
 253                         BIO_printf(bio_err,
 254                                 "Error initialising X509 store\n");
 255                         goto end;
 256                 }
 257
 258                 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509,
 259                                         X509_CRL_get_issuer(x), &xobj);
 260                 if(i <= 0) {
 261                         BIO_printf(bio_err,
 262                                 "Error getting CRL issuer certificate\n");
 263                         goto end;
 264                 }
 265                 pkey = X509_get_pubkey(xobj.data.x509);
 266                 X509_OBJECT_free_contents(&xobj);
 267                 if(!pkey) {
 268                         BIO_printf(bio_err,
 269                                 "Error getting CRL issuer public key\n");
 270                         goto end;
 271                 }
 272                 i = X509_CRL_verify(x, pkey);
 273                 EVP_PKEY_free(pkey);
 274                 if(i < 0) goto end;
 275                 if(i == 0) BIO_printf(bio_err, "verify failure\n");
 276                 else BIO_printf(bio_err, "verify OK\n");
 277         }
 278
 279         if (num)
 280                 {
 281                 for (i=1; i<=num; i++)
 282                         {
 283                         if (issuer == i)
 284                                 {
 285                                 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag);
 286                                 }
 287                         if (crlnumber == i)
 288                                 {
 289                                 ASN1_INTEGER *crlnum;
 290                                 crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number,
 291                                                               NULL, NULL);
 292                                 BIO_printf(bio_out,"crlNumber=");
 293                                 if (crlnum)
 294                                         {
 295                                         i2a_ASN1_INTEGER(bio_out, crlnum);
 296                                         ASN1_INTEGER_free(crlnum);
 297                                         }
 298                                 else
 299                                         BIO_puts(bio_out, "<NONE>");
 300                                 BIO_printf(bio_out,"\n");
 301                                 }
 302                         if (hash == i)
 303                                 {
 304                                 BIO_printf(bio_out,"%08lx\n",
 305                                         X509_NAME_hash(X509_CRL_get_issuer(x)));
 306                                 }
 307                         if (lastupdate == i)
 308                                 {
 309                                 BIO_printf(bio_out,"lastUpdate=");
 310                                 ASN1_TIME_print(bio_out,
 311                                                 X509_CRL_get_lastUpdate(x));
 312                                 BIO_printf(bio_out,"\n");
 313                                 }
 314                         if (nextupdate == i)
 315                                 {
 316                                 BIO_printf(bio_out,"nextUpdate=");
 317                                 if (X509_CRL_get_nextUpdate(x))
 318                                         ASN1_TIME_print(bio_out,
 319                                                 X509_CRL_get_nextUpdate(x));
 320                                 else
 321                                         BIO_printf(bio_out,"NONE");
 322                                 BIO_printf(bio_out,"\n");
 323                                 }
 324                         if (fingerprint == i)
 325                                 {
 326                                 int j;
 327                                 unsigned int n;
 328                                 unsigned char md[EVP_MAX_MD_SIZE];
 329
 330                                 if (!X509_CRL_digest(x,digest,md,&n))
 331                                         {
 332                                         BIO_printf(bio_err,"out of memory\n");
 333                                         goto end;
 334                                         }
 335                                 BIO_printf(bio_out,"%s Fingerprint=",
 336                                                 OBJ_nid2sn(EVP_MD_type(digest)));
 337                                 for (j=0; j<(int)n; j++)
 338                                         {
 339                                         BIO_printf(bio_out,"%02X%c",md[j],
 340                                                 (j+1 == (int)n)
 341                                                 ?'\n':':');
 342                                         }
 343                                 }
 344                         }
 345                 }
 346
 347         out=BIO_new(BIO_s_file());
 348         if (out == NULL)
 349                 {
 350                 ERR_print_errors(bio_err);
 351                 goto end;
 352                 }
 353
 354         if (outfile == NULL)
 355                 {
 356                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
 357 #ifdef OPENSSL_SYS_VMS
 358                 {
 359                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 360                 out = BIO_push(tmpbio, out);
 361                 }
 362 #endif
 363                 }
 364         else
 365                 {
 366                 if (BIO_write_filename(out,outfile) <= 0)
 367                         {
 368                         perror(outfile);
 369                         goto end;
 370                         }
 371                 }
 372
 373         if (text) X509_CRL_print(out, x);
 374
 375         if (noout)
 376                 {
 377                 ret = 0;
 378                 goto end;
 379                 }
 380
 381         if      (outformat == FORMAT_ASN1)
 382                 i=(int)i2d_X509_CRL_bio(out,x);
 383         else if (outformat == FORMAT_PEM)
 384                 i=PEM_write_bio_X509_CRL(out,x);
 385         else
 386                 {
 387                 BIO_printf(bio_err,"bad output format specified for outfile\n");
 388                 goto end;
 389                 }
 390         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
 391         ret=0;
 392 end:
 393         BIO_free_all(out);
 394         BIO_free_all(bio_out);
 395         bio_out=NULL;
 396         X509_CRL_free(x);
 397         if(store) {
 398                 X509_STORE_CTX_cleanup(&ctx);
 399                 X509_STORE_free(store);
 400         }
 401         apps_shutdown();
 402         OPENSSL_EXIT(ret);
 403         }
 404
 405 static X509_CRL *load_crl(char *infile, int format)
 406         {
 407         X509_CRL *x=NULL;
 408         BIO *in=NULL;
 409
 410         in=BIO_new(BIO_s_file());
 411         if (in == NULL)
 412                 {
 413                 ERR_print_errors(bio_err);
 414                 goto end;
 415                 }
 416
 417         if (infile == NULL)
 418                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 419         else
 420                 {
 421                 if (BIO_read_filename(in,infile) <= 0)
 422                         {
 423                         perror(infile);
 424                         goto end;
 425                         }
 426                 }
 427         if      (format == FORMAT_ASN1)
 428                 x=d2i_X509_CRL_bio(in,NULL);
 429         else if (format == FORMAT_PEM)
 430                 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
 431         else    {
 432                 BIO_printf(bio_err,"bad input format specified for input crl\n");
 433                 goto end;
 434                 }
 435         if (x == NULL)
 436                 {
 437                 BIO_printf(bio_err,"unable to load CRL\n");
 438                 ERR_print_errors(bio_err);
 439                 goto end;
 440                 }
 441
 442 end:
 443         BIO_free(in);
 444         return(x);
 445         }
 446