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