bin/openssl/pkcs7.c

   1 /* $OpenBSD: pkcs7.c,v 1.9 2017/01/20 08:57:12 deraadt Exp $ */
   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 <time.h>
  63
  64 #include "apps.h"
  65
  66 #include <openssl/err.h>
  67 #include <openssl/evp.h>
  68 #include <openssl/objects.h>
  69 #include <openssl/pem.h>
  70 #include <openssl/pkcs7.h>
  71 #include <openssl/x509.h>
  72
  73 static struct {
  74         char *infile;
  75         int informat;
  76         int noout;
  77         char *outfile;
  78         int outformat;
  79         int p7_print;
  80         int print_certs;
  81         int text;
  82 } pkcs7_config;
  83
  84 static struct option pkcs7_options[] = {
  85         {
  86                 .name = "in",
  87                 .argname = "file",
  88                 .desc = "Input file (default stdin)",
  89                 .type = OPTION_ARG,
  90                 .opt.arg = &pkcs7_config.infile,
  91         },
  92         {
  93                 .name = "inform",
  94                 .argname = "format",
  95                 .desc = "Input format (DER or PEM (default))",
  96                 .type = OPTION_ARG_FORMAT,
  97                 .opt.value = &pkcs7_config.informat,
  98         },
  99         {
 100                 .name = "noout",
 101                 .desc = "Do not output encoded version of PKCS#7 structure",
 102                 .type = OPTION_FLAG,
 103                 .opt.flag = &pkcs7_config.noout,
 104         },
 105         {
 106                 .name = "out",
 107                 .argname = "file",
 108                 .desc = "Output file (default stdout)",
 109                 .type = OPTION_ARG,
 110                 .opt.arg = &pkcs7_config.outfile,
 111         },
 112         {
 113                 .name = "outform",
 114                 .argname = "format",
 115                 .desc = "Output format (DER or PEM (default))",
 116                 .type = OPTION_ARG_FORMAT,
 117                 .opt.value = &pkcs7_config.outformat,
 118         },
 119         {
 120                 .name = "print",
 121                 .desc = "Output ASN.1 representation of PKCS#7 structure",
 122                 .type = OPTION_FLAG,
 123                 .opt.flag = &pkcs7_config.p7_print,
 124         },
 125         {
 126                 .name = "print_certs",
 127                 .desc = "Print out any certificates or CRLs contained in file",
 128                 .type = OPTION_FLAG,
 129                 .opt.flag = &pkcs7_config.print_certs,
 130         },
 131         {
 132                 .name = "text",
 133                 .desc = "Print out full certificate details",
 134                 .type = OPTION_FLAG,
 135                 .opt.flag = &pkcs7_config.text,
 136         },
 137         { NULL },
 138 };
 139
 140 static void
 141 pkcs7_usage()
 142 {
 143         fprintf(stderr, "usage: pkcs7 [-in file] "
 144             "[-inform DER | PEM] [-noout]\n"
 145             "    [-out file] [-outform DER | PEM] [-print_certs] [-text]\n\n");
 146         options_usage(pkcs7_options);
 147 }
 148
 149 int
 150 pkcs7_main(int argc, char **argv)
 151 {
 152         PKCS7 *p7 = NULL;
 153         BIO *in = NULL, *out = NULL;
 154         int ret = 1;
 155         int i;
 156
 157         if (single_execution) {
 158                 if (pledge("stdio cpath wpath rpath", NULL) == -1) {
 159                         perror("pledge");
 160                         exit(1);
 161                 }
 162         }
 163
 164         memset(&pkcs7_config, 0, sizeof(pkcs7_config));
 165
 166         pkcs7_config.informat = FORMAT_PEM;
 167         pkcs7_config.outformat = FORMAT_PEM;
 168
 169         if (options_parse(argc, argv, pkcs7_options, NULL, NULL) != 0) {
 170                 pkcs7_usage();
 171                 goto end;
 172         }
 173
 174         in = BIO_new(BIO_s_file());
 175         out = BIO_new(BIO_s_file());
 176         if ((in == NULL) || (out == NULL)) {
 177                 ERR_print_errors(bio_err);
 178                 goto end;
 179         }
 180         if (pkcs7_config.infile == NULL)
 181                 BIO_set_fp(in, stdin, BIO_NOCLOSE);
 182         else {
 183                 if (BIO_read_filename(in, pkcs7_config.infile) <= 0) {
 184                         perror(pkcs7_config.infile);
 185                         goto end;
 186                 }
 187         }
 188
 189         if (pkcs7_config.informat == FORMAT_ASN1)
 190                 p7 = d2i_PKCS7_bio(in, NULL);
 191         else if (pkcs7_config.informat == FORMAT_PEM)
 192                 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
 193         else {
 194                 BIO_printf(bio_err, "bad input format specified for pkcs7 object\n");
 195                 goto end;
 196         }
 197         if (p7 == NULL) {
 198                 BIO_printf(bio_err, "unable to load PKCS7 object\n");
 199                 ERR_print_errors(bio_err);
 200                 goto end;
 201         }
 202         if (pkcs7_config.outfile == NULL) {
 203                 BIO_set_fp(out, stdout, BIO_NOCLOSE);
 204         } else {
 205                 if (BIO_write_filename(out, pkcs7_config.outfile) <= 0) {
 206                         perror(pkcs7_config.outfile);
 207                         goto end;
 208                 }
 209         }
 210
 211         if (pkcs7_config.p7_print)
 212                 PKCS7_print_ctx(out, p7, 0, NULL);
 213
 214         if (pkcs7_config.print_certs) {
 215                 STACK_OF(X509) * certs = NULL;
 216                 STACK_OF(X509_CRL) * crls = NULL;
 217
 218                 i = OBJ_obj2nid(p7->type);
 219                 switch (i) {
 220                 case NID_pkcs7_signed:
 221                         certs = p7->d.sign->cert;
 222                         crls = p7->d.sign->crl;
 223                         break;
 224                 case NID_pkcs7_signedAndEnveloped:
 225                         certs = p7->d.signed_and_enveloped->cert;
 226                         crls = p7->d.signed_and_enveloped->crl;
 227                         break;
 228                 default:
 229                         break;
 230                 }
 231
 232                 if (certs != NULL) {
 233                         X509 *x;
 234
 235                         for (i = 0; i < sk_X509_num(certs); i++) {
 236                                 x = sk_X509_value(certs, i);
 237                                 if (pkcs7_config.text)
 238                                         X509_print(out, x);
 239                                 else
 240                                         dump_cert_text(out, x);
 241
 242                                 if (!pkcs7_config.noout)
 243                                         PEM_write_bio_X509(out, x);
 244                                 BIO_puts(out, "\n");
 245                         }
 246                 }
 247                 if (crls != NULL) {
 248                         X509_CRL *crl;
 249
 250                         for (i = 0; i < sk_X509_CRL_num(crls); i++) {
 251                                 crl = sk_X509_CRL_value(crls, i);
 252
 253                                 X509_CRL_print(out, crl);
 254
 255                                 if (!pkcs7_config.noout)
 256                                         PEM_write_bio_X509_CRL(out, crl);
 257                                 BIO_puts(out, "\n");
 258                         }
 259                 }
 260                 ret = 0;
 261                 goto end;
 262         }
 263         if (!pkcs7_config.noout) {
 264                 if (pkcs7_config.outformat == FORMAT_ASN1)
 265                         i = i2d_PKCS7_bio(out, p7);
 266                 else if (pkcs7_config.outformat == FORMAT_PEM)
 267                         i = PEM_write_bio_PKCS7(out, p7);
 268                 else {
 269                         BIO_printf(bio_err, "bad output format specified for outfile\n");
 270                         goto end;
 271                 }
 272
 273                 if (!i) {
 274                         BIO_printf(bio_err, "unable to write pkcs7 object\n");
 275                         ERR_print_errors(bio_err);
 276                         goto end;
 277                 }
 278         }
 279         ret = 0;
 280 end:
 281         if (p7 != NULL)
 282                 PKCS7_free(p7);
 283         if (in != NULL)
 284                 BIO_free(in);
 285         if (out != NULL)
 286                 BIO_free_all(out);
 287
 288         return (ret);
 289 }