334 lines
11 KiB
C
334 lines
11 KiB
C
/* apps/crl2p7.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/*
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* This was written by Gordon Chaffee <chaffee@plateau.cs.berkeley.edu> and
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* donated 'to the cause' along with lots and lots of other fixes to the
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* library.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include "apps.h"
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#include <openssl/err.h>
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#include <openssl/pkcs7.h>
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#include <openssl/pem.h>
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#include <openssl/objects.h>
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static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile);
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#undef PROG
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#define PROG crl2pkcs7_main
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/*-
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* -inform arg - input format - default PEM (DER or PEM)
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* -outform arg - output format - default PEM
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* -in arg - input file - default stdin
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* -out arg - output file - default stdout
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*/
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int MAIN(int, char **);
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int MAIN(int argc, char **argv)
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{
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int i, badops = 0;
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BIO *in = NULL, *out = NULL;
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int informat, outformat;
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char *infile, *outfile, *prog, *certfile;
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PKCS7 *p7 = NULL;
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PKCS7_SIGNED *p7s = NULL;
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X509_CRL *crl = NULL;
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STACK_OF(OPENSSL_STRING) *certflst = NULL;
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STACK_OF(X509_CRL) *crl_stack = NULL;
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STACK_OF(X509) *cert_stack = NULL;
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int ret = 1, nocrl = 0;
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apps_startup();
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if (bio_err == NULL)
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if ((bio_err = BIO_new(BIO_s_file())) != NULL)
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BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
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infile = NULL;
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outfile = NULL;
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informat = FORMAT_PEM;
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outformat = FORMAT_PEM;
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prog = argv[0];
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argc--;
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argv++;
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while (argc >= 1) {
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if (strcmp(*argv, "-inform") == 0) {
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if (--argc < 1)
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goto bad;
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informat = str2fmt(*(++argv));
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} else if (strcmp(*argv, "-outform") == 0) {
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if (--argc < 1)
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goto bad;
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outformat = str2fmt(*(++argv));
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} else if (strcmp(*argv, "-in") == 0) {
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if (--argc < 1)
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goto bad;
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infile = *(++argv);
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} else if (strcmp(*argv, "-nocrl") == 0) {
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nocrl = 1;
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} else if (strcmp(*argv, "-out") == 0) {
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if (--argc < 1)
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goto bad;
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outfile = *(++argv);
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} else if (strcmp(*argv, "-certfile") == 0) {
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if (--argc < 1)
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goto bad;
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if (!certflst)
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certflst = sk_OPENSSL_STRING_new_null();
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if (!certflst)
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goto end;
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if (!sk_OPENSSL_STRING_push(certflst, *(++argv))) {
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sk_OPENSSL_STRING_free(certflst);
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goto end;
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}
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} else {
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BIO_printf(bio_err, "unknown option %s\n", *argv);
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badops = 1;
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break;
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}
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argc--;
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argv++;
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}
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if (badops) {
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bad:
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BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
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BIO_printf(bio_err, "where options are\n");
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BIO_printf(bio_err, " -inform arg input format - DER or PEM\n");
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BIO_printf(bio_err, " -outform arg output format - DER or PEM\n");
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BIO_printf(bio_err, " -in arg input file\n");
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BIO_printf(bio_err, " -out arg output file\n");
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BIO_printf(bio_err,
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" -certfile arg certificates file of chain to a trusted CA\n");
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BIO_printf(bio_err, " (can be used more than once)\n");
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BIO_printf(bio_err,
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" -nocrl no crl to load, just certs from '-certfile'\n");
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ret = 1;
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goto end;
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}
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ERR_load_crypto_strings();
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in = BIO_new(BIO_s_file());
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out = BIO_new(BIO_s_file());
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if ((in == NULL) || (out == NULL)) {
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ERR_print_errors(bio_err);
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goto end;
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}
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if (!nocrl) {
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if (infile == NULL)
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BIO_set_fp(in, stdin, BIO_NOCLOSE);
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else {
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if (BIO_read_filename(in, infile) <= 0) {
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perror(infile);
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goto end;
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}
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}
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if (informat == FORMAT_ASN1)
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crl = d2i_X509_CRL_bio(in, NULL);
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else if (informat == FORMAT_PEM)
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crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
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else {
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BIO_printf(bio_err, "bad input format specified for input crl\n");
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goto end;
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}
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if (crl == NULL) {
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BIO_printf(bio_err, "unable to load CRL\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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}
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if ((p7 = PKCS7_new()) == NULL)
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goto end;
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if ((p7s = PKCS7_SIGNED_new()) == NULL)
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goto end;
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p7->type = OBJ_nid2obj(NID_pkcs7_signed);
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p7->d.sign = p7s;
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p7s->contents->type = OBJ_nid2obj(NID_pkcs7_data);
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if (!ASN1_INTEGER_set(p7s->version, 1))
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goto end;
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if ((crl_stack = sk_X509_CRL_new_null()) == NULL)
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goto end;
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p7s->crl = crl_stack;
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if (crl != NULL) {
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sk_X509_CRL_push(crl_stack, crl);
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crl = NULL; /* now part of p7 for OPENSSL_freeing */
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}
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if ((cert_stack = sk_X509_new_null()) == NULL)
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goto end;
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p7s->cert = cert_stack;
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if (certflst)
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for (i = 0; i < sk_OPENSSL_STRING_num(certflst); i++) {
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certfile = sk_OPENSSL_STRING_value(certflst, i);
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if (add_certs_from_file(cert_stack, certfile) < 0) {
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BIO_printf(bio_err, "error loading certificates\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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}
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sk_OPENSSL_STRING_free(certflst);
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if (outfile == NULL) {
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BIO_set_fp(out, stdout, BIO_NOCLOSE);
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#ifdef OPENSSL_SYS_VMS
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{
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BIO *tmpbio = BIO_new(BIO_f_linebuffer());
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out = BIO_push(tmpbio, out);
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}
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#endif
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} else {
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if (BIO_write_filename(out, outfile) <= 0) {
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perror(outfile);
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goto end;
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}
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}
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if (outformat == FORMAT_ASN1)
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i = i2d_PKCS7_bio(out, p7);
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else if (outformat == FORMAT_PEM)
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i = PEM_write_bio_PKCS7(out, p7);
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else {
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BIO_printf(bio_err, "bad output format specified for outfile\n");
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goto end;
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}
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if (!i) {
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BIO_printf(bio_err, "unable to write pkcs7 object\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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ret = 0;
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end:
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if (in != NULL)
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BIO_free(in);
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if (out != NULL)
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BIO_free_all(out);
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if (p7 != NULL)
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PKCS7_free(p7);
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if (crl != NULL)
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X509_CRL_free(crl);
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apps_shutdown();
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OPENSSL_EXIT(ret);
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}
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/*-
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*----------------------------------------------------------------------
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* int add_certs_from_file
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*
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* Read a list of certificates to be checked from a file.
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*
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* Results:
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* number of certs added if successful, -1 if not.
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*----------------------------------------------------------------------
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*/
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static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile)
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{
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BIO *in = NULL;
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int count = 0;
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int ret = -1;
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STACK_OF(X509_INFO) *sk = NULL;
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X509_INFO *xi;
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in = BIO_new(BIO_s_file());
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if ((in == NULL) || (BIO_read_filename(in, certfile) <= 0)) {
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BIO_printf(bio_err, "error opening the file, %s\n", certfile);
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goto end;
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}
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/* This loads from a file, a stack of x509/crl/pkey sets */
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sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
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if (sk == NULL) {
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BIO_printf(bio_err, "error reading the file, %s\n", certfile);
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goto end;
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}
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/* scan over it and pull out the CRL's */
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while (sk_X509_INFO_num(sk)) {
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xi = sk_X509_INFO_shift(sk);
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if (xi->x509 != NULL) {
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sk_X509_push(stack, xi->x509);
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xi->x509 = NULL;
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count++;
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}
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X509_INFO_free(xi);
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}
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ret = count;
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end:
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/* never need to OPENSSL_free x */
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if (in != NULL)
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BIO_free(in);
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if (sk != NULL)
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sk_X509_INFO_free(sk);
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return (ret);
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}
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