crypto/openssl/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 #ifndef OPENSSL_NO_MD5
  85     " -hash_old       - print old-style (MD5) hash value\n",
  86 #endif
  87     " -fingerprint    - print the crl fingerprint\n",
  88     " -issuer         - print issuer DN\n",
  89     " -lastupdate     - lastUpdate field\n",
  90     " -nextupdate     - nextUpdate field\n",
  91     " -crlnumber      - print CRL number\n",
  92     " -noout          - no CRL output\n",
  93     " -CAfile  name   - verify CRL using certificates in file \"name\"\n",
  94     " -CApath  dir    - verify CRL using certificates in \"dir\"\n",
  95     " -nameopt arg    - various certificate name options\n",
  96     NULL
  97 };
  98
  99 static X509_CRL *load_crl(char *file, int format);
 100 static BIO *bio_out = NULL;
 101
 102 int MAIN(int, char **);
 103
 104 int MAIN(int argc, char **argv)
 105 {
 106     unsigned long nmflag = 0;
 107     X509_CRL *x = NULL;
 108     char *CAfile = NULL, *CApath = NULL;
 109     int ret = 1, i, num, badops = 0;
 110     BIO *out = NULL;
 111     int informat, outformat;
 112     char *infile = NULL, *outfile = NULL;
 113     int hash = 0, issuer = 0, lastupdate = 0, nextupdate = 0, noout =
 114         0, text = 0;
 115 #ifndef OPENSSL_NO_MD5
 116     int hash_old = 0;
 117 #endif
 118     int fingerprint = 0, crlnumber = 0;
 119     const char **pp;
 120     X509_STORE *store = NULL;
 121     X509_STORE_CTX ctx;
 122     X509_LOOKUP *lookup = NULL;
 123     X509_OBJECT xobj;
 124     EVP_PKEY *pkey;
 125     int do_ver = 0;
 126     const EVP_MD *md_alg, *digest = EVP_sha1();
 127
 128     apps_startup();
 129
 130     if (bio_err == NULL)
 131         if ((bio_err = BIO_new(BIO_s_file())) != NULL)
 132             BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
 133
 134     if (!load_config(bio_err, NULL))
 135         goto end;
 136
 137     if (bio_out == NULL)
 138         if ((bio_out = BIO_new(BIO_s_file())) != NULL) {
 139             BIO_set_fp(bio_out, stdout, BIO_NOCLOSE);
 140 #ifdef OPENSSL_SYS_VMS
 141             {
 142                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 143                 bio_out = BIO_push(tmpbio, bio_out);
 144             }
 145 #endif
 146         }
 147
 148     informat = FORMAT_PEM;
 149     outformat = FORMAT_PEM;
 150
 151     argc--;
 152     argv++;
 153     num = 0;
 154     while (argc >= 1) {
 155 #ifdef undef
 156         if (strcmp(*argv, "-p") == 0) {
 157             if (--argc < 1)
 158                 goto bad;
 159             if (!args_from_file(++argv, Nargc, Nargv)) {
 160                 goto end;
 161             }
 162         */}
 163 #endif
 164         if (strcmp(*argv, "-inform") == 0) {
 165             if (--argc < 1)
 166                 goto bad;
 167             informat = str2fmt(*(++argv));
 168         } else if (strcmp(*argv, "-outform") == 0) {
 169             if (--argc < 1)
 170                 goto bad;
 171             outformat = str2fmt(*(++argv));
 172         } else if (strcmp(*argv, "-in") == 0) {
 173             if (--argc < 1)
 174                 goto bad;
 175             infile = *(++argv);
 176         } else if (strcmp(*argv, "-out") == 0) {
 177             if (--argc < 1)
 178                 goto bad;
 179             outfile = *(++argv);
 180         } else if (strcmp(*argv, "-CApath") == 0) {
 181             if (--argc < 1)
 182                 goto bad;
 183             CApath = *(++argv);
 184             do_ver = 1;
 185         } else if (strcmp(*argv, "-CAfile") == 0) {
 186             if (--argc < 1)
 187                 goto bad;
 188             CAfile = *(++argv);
 189             do_ver = 1;
 190         } else if (strcmp(*argv, "-verify") == 0)
 191             do_ver = 1;
 192         else if (strcmp(*argv, "-text") == 0)
 193             text = 1;
 194         else if (strcmp(*argv, "-hash") == 0)
 195             hash = ++num;
 196 #ifndef OPENSSL_NO_MD5
 197         else if (strcmp(*argv, "-hash_old") == 0)
 198             hash_old = ++num;
 199 #endif
 200         else if (strcmp(*argv, "-nameopt") == 0) {
 201             if (--argc < 1)
 202                 goto bad;
 203             if (!set_name_ex(&nmflag, *(++argv)))
 204                 goto bad;
 205         } else if (strcmp(*argv, "-issuer") == 0)
 206             issuer = ++num;
 207         else if (strcmp(*argv, "-lastupdate") == 0)
 208             lastupdate = ++num;
 209         else if (strcmp(*argv, "-nextupdate") == 0)
 210             nextupdate = ++num;
 211         else if (strcmp(*argv, "-noout") == 0)
 212             noout = ++num;
 213         else if (strcmp(*argv, "-fingerprint") == 0)
 214             fingerprint = ++num;
 215         else if (strcmp(*argv, "-crlnumber") == 0)
 216             crlnumber = ++num;
 217         else if ((md_alg = EVP_get_digestbyname(*argv + 1))) {
 218             /* ok */
 219             digest = md_alg;
 220         } else {
 221             BIO_printf(bio_err, "unknown option %s\n", *argv);
 222             badops = 1;
 223             break;
 224         }
 225         argc--;
 226         argv++;
 227     }
 228
 229     if (badops) {
 230  bad:
 231         for (pp = crl_usage; (*pp != NULL); pp++)
 232             BIO_printf(bio_err, "%s", *pp);
 233         goto end;
 234     }
 235
 236     ERR_load_crypto_strings();
 237     x = load_crl(infile, informat);
 238     if (x == NULL) {
 239         goto end;
 240     }
 241
 242     if (do_ver) {
 243         store = X509_STORE_new();
 244         lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
 245         if (lookup == NULL)
 246             goto end;
 247         if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM))
 248             X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
 249
 250         lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
 251         if (lookup == NULL)
 252             goto end;
 253         if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM))
 254             X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
 255         ERR_clear_error();
 256
 257         if (!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
 258             BIO_printf(bio_err, "Error initialising X509 store\n");
 259             goto end;
 260         }
 261
 262         i = X509_STORE_get_by_subject(&ctx, X509_LU_X509,
 263                                       X509_CRL_get_issuer(x), &xobj);
 264         if (i <= 0) {
 265             BIO_printf(bio_err, "Error getting CRL issuer certificate\n");
 266             goto end;
 267         }
 268         pkey = X509_get_pubkey(xobj.data.x509);
 269         X509_OBJECT_free_contents(&xobj);
 270         if (!pkey) {
 271             BIO_printf(bio_err, "Error getting CRL issuer public key\n");
 272             goto end;
 273         }
 274         i = X509_CRL_verify(x, pkey);
 275         EVP_PKEY_free(pkey);
 276         if (i < 0)
 277             goto end;
 278         if (i == 0)
 279             BIO_printf(bio_err, "verify failure\n");
 280         else
 281             BIO_printf(bio_err, "verify OK\n");
 282     }
 283
 284     if (num) {
 285         for (i = 1; i <= num; i++) {
 286             if (issuer == i) {
 287                 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x),
 288                            nmflag);
 289             }
 290             if (crlnumber == i) {
 291                 ASN1_INTEGER *crlnum;
 292                 crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number, NULL, NULL);
 293                 BIO_printf(bio_out, "crlNumber=");
 294                 if (crlnum) {
 295                     i2a_ASN1_INTEGER(bio_out, crlnum);
 296                     ASN1_INTEGER_free(crlnum);
 297                 } else
 298                     BIO_puts(bio_out, "<NONE>");
 299                 BIO_printf(bio_out, "\n");
 300             }
 301             if (hash == i) {
 302                 BIO_printf(bio_out, "%08lx\n",
 303                            X509_NAME_hash(X509_CRL_get_issuer(x)));
 304             }
 305 #ifndef OPENSSL_NO_MD5
 306             if (hash_old == i) {
 307                 BIO_printf(bio_out, "%08lx\n",
 308                            X509_NAME_hash_old(X509_CRL_get_issuer(x)));
 309             }
 310 #endif
 311             if (lastupdate == i) {
 312                 BIO_printf(bio_out, "lastUpdate=");
 313                 ASN1_TIME_print(bio_out, X509_CRL_get_lastUpdate(x));
 314                 BIO_printf(bio_out, "\n");
 315             }
 316             if (nextupdate == i) {
 317                 BIO_printf(bio_out, "nextUpdate=");
 318                 if (X509_CRL_get_nextUpdate(x))
 319                     ASN1_TIME_print(bio_out, 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                 int j;
 326                 unsigned int n;
 327                 unsigned char md[EVP_MAX_MD_SIZE];
 328
 329                 if (!X509_CRL_digest(x, digest, md, &n)) {
 330                     BIO_printf(bio_err, "out of memory\n");
 331                     goto end;
 332                 }
 333                 BIO_printf(bio_out, "%s Fingerprint=",
 334                            OBJ_nid2sn(EVP_MD_type(digest)));
 335                 for (j = 0; j < (int)n; j++) {
 336                     BIO_printf(bio_out, "%02X%c", md[j], (j + 1 == (int)n)
 337                                ? '\n' : ':');
 338                 }
 339             }
 340         }
 341     }
 342
 343     out = BIO_new(BIO_s_file());
 344     if (out == NULL) {
 345         ERR_print_errors(bio_err);
 346         goto end;
 347     }
 348
 349     if (outfile == NULL) {
 350         BIO_set_fp(out, stdout, BIO_NOCLOSE);
 351 #ifdef OPENSSL_SYS_VMS
 352         {
 353             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 354             out = BIO_push(tmpbio, out);
 355         }
 356 #endif
 357     } else {
 358         if (BIO_write_filename(out, outfile) <= 0) {
 359             perror(outfile);
 360             goto end;
 361         }
 362     }
 363
 364     if (text)
 365         X509_CRL_print(out, x);
 366
 367     if (noout) {
 368         ret = 0;
 369         goto end;
 370     }
 371
 372     if (outformat == FORMAT_ASN1)
 373         i = (int)i2d_X509_CRL_bio(out, x);
 374     else if (outformat == FORMAT_PEM)
 375         i = PEM_write_bio_X509_CRL(out, x);
 376     else {
 377         BIO_printf(bio_err, "bad output format specified for outfile\n");
 378         goto end;
 379     }
 380     if (!i) {
 381         BIO_printf(bio_err, "unable to write CRL\n");
 382         goto end;
 383     }
 384     ret = 0;
 385  end:
 386     BIO_free_all(out);
 387     BIO_free_all(bio_out);
 388     bio_out = NULL;
 389     X509_CRL_free(x);
 390     if (store) {
 391         X509_STORE_CTX_cleanup(&ctx);
 392         X509_STORE_free(store);
 393     }
 394     apps_shutdown();
 395     OPENSSL_EXIT(ret);
 396 }
 397
 398 static X509_CRL *load_crl(char *infile, int format)
 399 {
 400     X509_CRL *x = NULL;
 401     BIO *in = NULL;
 402
 403     in = BIO_new(BIO_s_file());
 404     if (in == NULL) {
 405         ERR_print_errors(bio_err);
 406         goto end;
 407     }
 408
 409     if (infile == NULL)
 410         BIO_set_fp(in, stdin, BIO_NOCLOSE);
 411     else {
 412         if (BIO_read_filename(in, infile) <= 0) {
 413             perror(infile);
 414             goto end;
 415         }
 416     }
 417     if (format == FORMAT_ASN1)
 418         x = d2i_X509_CRL_bio(in, NULL);
 419     else if (format == FORMAT_PEM)
 420         x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
 421     else {
 422         BIO_printf(bio_err, "bad input format specified for input crl\n");
 423         goto end;
 424     }
 425     if (x == NULL) {
 426         BIO_printf(bio_err, "unable to load CRL\n");
 427         ERR_print_errors(bio_err);
 428         goto end;
 429     }
 430
 431  end:
 432     BIO_free(in);
 433     return (x);
 434 }