344 lines
9.4 KiB
C
344 lines
9.4 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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/* This was written by Gordon Chaffee <chaffee@plateau.cs.berkeley.edu>
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* and donated 'to the cause' along with lots and lots of other fixes to
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* the library. */
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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 <sys/stat.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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/* -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 *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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{
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if (strcmp(*argv,"-inform") == 0)
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{
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if (--argc < 1) goto bad;
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informat=str2fmt(*(++argv));
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}
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else if (strcmp(*argv,"-outform") == 0)
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{
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if (--argc < 1) goto bad;
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outformat=str2fmt(*(++argv));
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}
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else if (strcmp(*argv,"-in") == 0)
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{
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if (--argc < 1) goto bad;
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infile= *(++argv);
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}
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else if (strcmp(*argv,"-nocrl") == 0)
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{
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nocrl=1;
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}
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else if (strcmp(*argv,"-out") == 0)
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{
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if (--argc < 1) goto bad;
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outfile= *(++argv);
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}
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else if (strcmp(*argv,"-certfile") == 0)
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{
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if (--argc < 1) goto bad;
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if(!certflst) certflst = sk_new_null();
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sk_push(certflst,*(++argv));
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}
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else
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{
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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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{
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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," -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," -nocrl no crl to load, just certs from '-certfile'\n");
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EXIT(1);
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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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{
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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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{
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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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{
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if (BIO_read_filename(in,infile) <= 0)
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{
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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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{
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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) goto end;
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if ((p7s=PKCS7_SIGNED_new()) == NULL) 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)) goto end;
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if ((crl_stack=sk_X509_CRL_new_null()) == NULL) goto end;
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p7s->crl=crl_stack;
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if (crl != NULL)
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{
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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) goto end;
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p7s->cert=cert_stack;
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if(certflst) for(i = 0; i < sk_num(certflst); i++) {
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certfile = sk_value(certflst, i);
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if (add_certs_from_file(cert_stack,certfile) < 0)
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{
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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_free(certflst);
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if (outfile == NULL)
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{
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BIO_set_fp(out,stdout,BIO_NOCLOSE);
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#ifdef 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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}
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else
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{
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if (BIO_write_filename(out,outfile) <= 0)
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{
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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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{
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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) BIO_free(in);
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if (out != NULL) BIO_free_all(out);
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if (p7 != NULL) PKCS7_free(p7);
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if (crl != NULL) X509_CRL_free(crl);
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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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struct stat st;
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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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if ((stat(certfile,&st) != 0))
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{
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BIO_printf(bio_err,"unable to load the file, %s\n",certfile);
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goto end;
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}
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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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{
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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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{
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xi=sk_X509_INFO_shift(sk);
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if (xi->x509 != NULL)
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{
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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) BIO_free(in);
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if (sk != NULL) sk_X509_INFO_free(sk);
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return(ret);
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}
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