ts.c

/* apps/ts.c */
/* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL
 * project 2002.
 */
/* ====================================================================
 * Copyright (c) 2001 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include <openssl/ts.h>
#include <openssl/bn.h>

#undef PROG
#define PROG	ts_main

/* Length of the nonce of the request in bits (must be a multiple of 8). */
#define	NONCE_LENGTH		64

/* Macro definitions for the configuration file. */
#define	ENV_OID_FILE		"oid_file"

/* Local function declarations. */

static ASN1_OBJECT *txt2obj(const char *oid);
static CONF *load_config_file(const char *configfile);

/* Query related functions. */
static int query_command(const char *data, char *digest,
			 const EVP_MD *md, const char *policy, int no_nonce, 
			 int cert, const char *in, const char *out, int text);
static BIO *BIO_open_with_default(const char *file, const char *mode, 
				  FILE *default_fp);
static TS_REQ *create_query(BIO *data_bio, char *digest, const EVP_MD *md,
			    const char *policy, int no_nonce, int cert);
static int create_digest(BIO *input, char *digest,
			 const EVP_MD *md, unsigned char **md_value);
static ASN1_INTEGER *create_nonce(int bits);

/* Reply related functions. */
static int reply_command(CONF *conf, char *section, char *engine, 
			 char *queryfile, char *passin, char *inkey, 
			 char *signer, char *chain, const char *policy, 
			 char *in, int token_in, char *out, int token_out,
			 int text);
static TS_RESP *read_PKCS7(BIO *in_bio);
static TS_RESP *create_response(CONF *conf, const char *section, char *engine,
				char *queryfile, char *passin, char *inkey,
				char *signer, char *chain, const char *policy);
static ASN1_INTEGER * MS_CALLBACK serial_cb(TS_RESP_CTX *ctx, void *data);
static ASN1_INTEGER *next_serial(const char *serialfile);
static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial);

/* Verify related functions. */
static int verify_command(char *data, char *digest, char *queryfile,
			  char *in, int token_in,
			  char *ca_path, char *ca_file, char *untrusted);
static TS_VERIFY_CTX *create_verify_ctx(char *data, char *digest, 
					char *queryfile, 
					char *ca_path, char *ca_file,
					char *untrusted);
static X509_STORE *create_cert_store(char *ca_path, char *ca_file);
static int MS_CALLBACK verify_cb(int ok, X509_STORE_CTX *ctx);

/* Main function definition. */
int MAIN(int, char **);

int MAIN(int argc, char **argv)
	{
	int ret = 1;
	char *configfile = NULL;
	char *section = NULL;
	CONF *conf = NULL;
	enum mode {
	CMD_NONE, CMD_QUERY, CMD_REPLY, CMD_VERIFY 
	} mode = CMD_NONE;
	char *data = NULL;
	char *digest = NULL;
	const EVP_MD *md = NULL;
	char *rnd = NULL;
	char *policy = NULL;
	int no_nonce = 0;
	int cert = 0;
	char *in = NULL;
	char *out = NULL;
	int text = 0;
	char *queryfile = NULL;
	char *passin = NULL;	/* Password source. */
	char *password =NULL;	/* Password itself. */
	char *inkey = NULL;
	char *signer = NULL;
	char *chain = NULL;
	char *ca_path = NULL;
	char *ca_file = NULL;
	char *untrusted = NULL;
	char *engine = NULL;
	/* Input is ContentInfo instead of TimeStampResp. */
	int token_in = 0;	
	/* Output is ContentInfo instead of TimeStampResp. */
	int token_out = 0;
	int free_bio_err = 0;

	ERR_load_crypto_strings();
	apps_startup();

	if (bio_err == NULL && (bio_err = BIO_new(BIO_s_file())) != NULL)
		{
		free_bio_err = 1;
		BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
		}

	if (!load_config(bio_err, NULL))
		goto cleanup;

	for (argc--, argv++; argc > 0; argc--, argv++)
		{
		if (strcmp(*argv, "-config") == 0)
			{
			if (argc-- < 1) goto usage;
			configfile = *++argv;
			}
		else if (strcmp(*argv, "-section") == 0)
			{
			if (argc-- < 1) goto usage;
			section = *++argv;
			}
		else if (strcmp(*argv, "-query") == 0)
			{
			if (mode != CMD_NONE) goto usage;
			mode = CMD_QUERY;
			}
		else if (strcmp(*argv, "-data") == 0)
			{
			if (argc-- < 1) goto usage;
			data = *++argv;
			}
		else if (strcmp(*argv, "-digest") == 0)
			{
			if (argc-- < 1) goto usage;
			digest = *++argv;
			}
		else if (strcmp(*argv, "-rand") == 0)
			{
			if (argc-- < 1) goto usage;