apps/pkcs7.c

   1 /*
   2  * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <time.h>
  14 #include "apps.h"
  15 #include "progs.h"
  16 #include <openssl/err.h>
  17 #include <openssl/objects.h>
  18 #include <openssl/evp.h>
  19 #include <openssl/x509.h>
  20 #include <openssl/pkcs7.h>
  21 #include <openssl/pem.h>
  22
  23 typedef enum OPTION_choice {
  24     OPT_COMMON,
  25     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_NOOUT,
  26     OPT_TEXT, OPT_PRINT, OPT_PRINT_CERTS, OPT_QUIET,
  27     OPT_ENGINE, OPT_PROV_ENUM
  28 } OPTION_CHOICE;
  29
  30 const OPTIONS pkcs7_options[] = {
  31     OPT_SECTION("General"),
  32     {"help", OPT_HELP, '-', "Display this summary"},
  33 #ifndef OPENSSL_NO_ENGINE
  34     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
  35 #endif
  36
  37     OPT_SECTION("Input"),
  38     {"in", OPT_IN, '<', "Input file"},
  39     {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
  40
  41     OPT_SECTION("Output"),
  42     {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
  43     {"out", OPT_OUT, '>', "Output file"},
  44     {"noout", OPT_NOOUT, '-', "Don't output encoded data"},
  45     {"text", OPT_TEXT, '-', "Print full details of certificates"},
  46     {"print", OPT_PRINT, '-', "Print out all fields of the PKCS7 structure"},
  47     {"print_certs", OPT_PRINT_CERTS, '-',
  48      "Print_certs  print any certs or crl in the input"},
  49     {"quiet", OPT_QUIET, '-',
  50      "When used with -print_certs, it produces a cleaner output"},
  51
  52     OPT_PROV_OPTIONS,
  53     {NULL}
  54 };
  55
  56 int pkcs7_main(int argc, char **argv)
  57 {
  58     ENGINE *e = NULL;
  59     PKCS7 *p7 = NULL, *p7i;
  60     BIO *in = NULL, *out = NULL;
  61     int informat = FORMAT_PEM, outformat = FORMAT_PEM;
  62     char *infile = NULL, *outfile = NULL, *prog;
  63     int i, print_certs = 0, text = 0, noout = 0, p7_print = 0, quiet = 0, ret = 1;
  64     OPTION_CHOICE o;
  65     OSSL_LIB_CTX *libctx = app_get0_libctx();
  66
  67     prog = opt_init(argc, argv, pkcs7_options);
  68     while ((o = opt_next()) != OPT_EOF) {
  69         switch (o) {
  70         case OPT_EOF:
  71         case OPT_ERR:
  72  opthelp:
  73             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
  74             goto end;
  75         case OPT_HELP:
  76             opt_help(pkcs7_options);
  77             ret = 0;
  78             goto end;
  79         case OPT_INFORM:
  80             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
  81                 goto opthelp;
  82             break;
  83         case OPT_OUTFORM:
  84             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
  85                 goto opthelp;
  86             break;
  87         case OPT_IN:
  88             infile = opt_arg();
  89             break;
  90         case OPT_OUT:
  91             outfile = opt_arg();
  92             break;
  93         case OPT_NOOUT:
  94             noout = 1;
  95             break;
  96         case OPT_TEXT:
  97             text = 1;
  98             break;
  99         case OPT_PRINT:
 100             p7_print = 1;
 101             break;
 102         case OPT_PRINT_CERTS:
 103             print_certs = 1;
 104             break;
 105         case OPT_QUIET:
 106             quiet = 1;
 107             break;
 108         case OPT_ENGINE:
 109             e = setup_engine(opt_arg(), 0);
 110             break;
 111         case OPT_PROV_CASES:
 112             if (!opt_provider(o))
 113                 goto end;
 114             break;
 115         }
 116     }
 117
 118     /* No extra arguments. */
 119     if (!opt_check_rest_arg(NULL))
 120         goto opthelp;
 121
 122     in = bio_open_default(infile, 'r', informat);
 123     if (in == NULL)
 124         goto end;
 125
 126     p7 = PKCS7_new_ex(libctx, app_get0_propq());
 127     if (p7 == NULL) {
 128         BIO_printf(bio_err, "unable to allocate PKCS7 object\n");
 129         ERR_print_errors(bio_err);
 130         goto end;
 131     }
 132
 133     if (informat == FORMAT_ASN1)
 134         p7i = d2i_PKCS7_bio(in, &p7);
 135     else
 136         p7i = PEM_read_bio_PKCS7(in, &p7, NULL, NULL);
 137     if (p7i == NULL) {
 138         BIO_printf(bio_err, "unable to load PKCS7 object\n");
 139         ERR_print_errors(bio_err);
 140         goto end;
 141     }
 142
 143     out = bio_open_default(outfile, 'w', outformat);
 144     if (out == NULL)
 145         goto end;
 146
 147     if (p7_print)
 148         PKCS7_print_ctx(out, p7, 0, NULL);
 149
 150     if (print_certs) {
 151         STACK_OF(X509) *certs = NULL;
 152         STACK_OF(X509_CRL) *crls = NULL;
 153
 154         i = OBJ_obj2nid(p7->type);
 155         switch (i) {
 156         case NID_pkcs7_signed:
 157             if (p7->d.sign != NULL) {
 158                 certs = p7->d.sign->cert;
 159                 crls = p7->d.sign->crl;
 160             }
 161             break;
 162         case NID_pkcs7_signedAndEnveloped:
 163             if (p7->d.signed_and_enveloped != NULL) {
 164                 certs = p7->d.signed_and_enveloped->cert;
 165                 crls = p7->d.signed_and_enveloped->crl;
 166             }
 167             break;
 168         default:
 169             break;
 170         }
 171
 172         if (certs != NULL) {
 173             X509 *x;
 174
 175             for (i = 0; i < sk_X509_num(certs); i++) {
 176                 x = sk_X509_value(certs, i);
 177                 if (text)
 178                     X509_print(out, x);
 179                 else if (!quiet)
 180                     dump_cert_text(out, x);
 181
 182                 if (!noout)
 183                     PEM_write_bio_X509(out, x);
 184                 BIO_puts(out, "\n");
 185             }
 186         }
 187         if (crls != NULL) {
 188             X509_CRL *crl;
 189
 190             for (i = 0; i < sk_X509_CRL_num(crls); i++) {
 191                 crl = sk_X509_CRL_value(crls, i);
 192
 193                 X509_CRL_print_ex(out, crl, get_nameopt());
 194
 195                 if (!noout)
 196                     PEM_write_bio_X509_CRL(out, crl);
 197                 BIO_puts(out, "\n");
 198             }
 199         }
 200
 201         ret = 0;
 202         goto end;
 203     }
 204
 205     if (!noout) {
 206         if (outformat == FORMAT_ASN1)
 207             i = i2d_PKCS7_bio(out, p7);
 208         else
 209             i = PEM_write_bio_PKCS7(out, p7);
 210
 211         if (!i) {
 212             BIO_printf(bio_err, "unable to write pkcs7 object\n");
 213             ERR_print_errors(bio_err);
 214             goto end;
 215         }
 216     }
 217     ret = 0;
 218  end:
 219     PKCS7_free(p7);
 220     release_engine(e);
 221     BIO_free(in);
 222     BIO_free_all(out);
 223     return ret;
 224 }