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