1120 lines
34 KiB
C
1120 lines
34 KiB
C
/* apps/ts.c */
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/*
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* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL project
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* 2002.
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*/
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/* ====================================================================
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* Copyright (c) 2001 The OpenSSL Project. All rights reserved.
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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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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "apps.h"
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <openssl/rand.h>
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#include <openssl/ts.h>
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#include <openssl/bn.h>
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#undef PROG
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#define PROG ts_main
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/* Length of the nonce of the request in bits (must be a multiple of 8). */
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#define NONCE_LENGTH 64
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/* Macro definitions for the configuration file. */
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#define ENV_OID_FILE "oid_file"
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/* Local function declarations. */
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static ASN1_OBJECT *txt2obj(const char *oid);
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static CONF *load_config_file(const char *configfile);
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/* Query related functions. */
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static int query_command(const char *data, char *digest,
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const EVP_MD *md, const char *policy, int no_nonce,
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int cert, const char *in, const char *out, int text);
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static BIO *BIO_open_with_default(const char *file, const char *mode,
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FILE *default_fp);
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static TS_REQ *create_query(BIO *data_bio, char *digest, const EVP_MD *md,
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const char *policy, int no_nonce, int cert);
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static int create_digest(BIO *input, char *digest,
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const EVP_MD *md, unsigned char **md_value);
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static ASN1_INTEGER *create_nonce(int bits);
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/* Reply related functions. */
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static int reply_command(CONF *conf, char *section, char *engine,
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char *queryfile, char *passin, char *inkey,
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char *signer, char *chain, const char *policy,
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char *in, int token_in, char *out, int token_out,
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int text);
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static TS_RESP *read_PKCS7(BIO *in_bio);
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static TS_RESP *create_response(CONF *conf, const char *section, char *engine,
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char *queryfile, char *passin, char *inkey,
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char *signer, char *chain,
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const char *policy);
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static ASN1_INTEGER *MS_CALLBACK serial_cb(TS_RESP_CTX *ctx, void *data);
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static ASN1_INTEGER *next_serial(const char *serialfile);
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static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial);
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/* Verify related functions. */
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static int verify_command(char *data, char *digest, char *queryfile,
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char *in, int token_in,
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char *ca_path, char *ca_file, char *untrusted);
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static TS_VERIFY_CTX *create_verify_ctx(char *data, char *digest,
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char *queryfile,
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char *ca_path, char *ca_file,
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char *untrusted);
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static X509_STORE *create_cert_store(char *ca_path, char *ca_file);
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static int MS_CALLBACK verify_cb(int ok, X509_STORE_CTX *ctx);
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/* Main function definition. */
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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 ret = 1;
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char *configfile = NULL;
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char *section = NULL;
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CONF *conf = NULL;
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enum mode {
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CMD_NONE, CMD_QUERY, CMD_REPLY, CMD_VERIFY
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} mode = CMD_NONE;
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char *data = NULL;
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char *digest = NULL;
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const EVP_MD *md = NULL;
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char *rnd = NULL;
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char *policy = NULL;
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int no_nonce = 0;
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int cert = 0;
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char *in = NULL;
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char *out = NULL;
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int text = 0;
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char *queryfile = NULL;
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char *passin = NULL; /* Password source. */
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char *password = NULL; /* Password itself. */
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char *inkey = NULL;
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char *signer = NULL;
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char *chain = NULL;
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char *ca_path = NULL;
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char *ca_file = NULL;
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char *untrusted = NULL;
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char *engine = NULL;
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/* Input is ContentInfo instead of TimeStampResp. */
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int token_in = 0;
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/* Output is ContentInfo instead of TimeStampResp. */
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int token_out = 0;
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int free_bio_err = 0;
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ERR_load_crypto_strings();
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apps_startup();
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if (bio_err == NULL && (bio_err = BIO_new(BIO_s_file())) != NULL) {
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free_bio_err = 1;
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BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
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}
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if (!load_config(bio_err, NULL))
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goto cleanup;
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for (argc--, argv++; argc > 0; argc--, argv++) {
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if (strcmp(*argv, "-config") == 0) {
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if (argc-- < 1)
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goto usage;
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configfile = *++argv;
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} else if (strcmp(*argv, "-section") == 0) {
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if (argc-- < 1)
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goto usage;
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section = *++argv;
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} else if (strcmp(*argv, "-query") == 0) {
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if (mode != CMD_NONE)
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goto usage;
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mode = CMD_QUERY;
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} else if (strcmp(*argv, "-data") == 0) {
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if (argc-- < 1)
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goto usage;
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data = *++argv;
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} else if (strcmp(*argv, "-digest") == 0) {
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if (argc-- < 1)
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goto usage;
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digest = *++argv;
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} else if (strcmp(*argv, "-rand") == 0) {
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if (argc-- < 1)
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goto usage;
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rnd = *++argv;
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} else if (strcmp(*argv, "-policy") == 0) {
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if (argc-- < 1)
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goto usage;
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policy = *++argv;
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} else if (strcmp(*argv, "-no_nonce") == 0) {
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no_nonce = 1;
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} else if (strcmp(*argv, "-cert") == 0) {
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cert = 1;
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} else if (strcmp(*argv, "-in") == 0) {
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if (argc-- < 1)
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goto usage;
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in = *++argv;
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} else if (strcmp(*argv, "-token_in") == 0) {
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token_in = 1;
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} else if (strcmp(*argv, "-out") == 0) {
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if (argc-- < 1)
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goto usage;
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out = *++argv;
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} else if (strcmp(*argv, "-token_out") == 0) {
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token_out = 1;
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} else if (strcmp(*argv, "-text") == 0) {
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text = 1;
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} else if (strcmp(*argv, "-reply") == 0) {
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if (mode != CMD_NONE)
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goto usage;
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mode = CMD_REPLY;
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} else if (strcmp(*argv, "-queryfile") == 0) {
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if (argc-- < 1)
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goto usage;
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queryfile = *++argv;
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} else if (strcmp(*argv, "-passin") == 0) {
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if (argc-- < 1)
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goto usage;
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passin = *++argv;
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} else if (strcmp(*argv, "-inkey") == 0) {
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if (argc-- < 1)
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goto usage;
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inkey = *++argv;
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} else if (strcmp(*argv, "-signer") == 0) {
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if (argc-- < 1)
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goto usage;
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signer = *++argv;
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} else if (strcmp(*argv, "-chain") == 0) {
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if (argc-- < 1)
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goto usage;
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chain = *++argv;
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} else if (strcmp(*argv, "-verify") == 0) {
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if (mode != CMD_NONE)
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goto usage;
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mode = CMD_VERIFY;
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} else if (strcmp(*argv, "-CApath") == 0) {
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if (argc-- < 1)
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goto usage;
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ca_path = *++argv;
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} else if (strcmp(*argv, "-CAfile") == 0) {
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if (argc-- < 1)
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goto usage;
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ca_file = *++argv;
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} else if (strcmp(*argv, "-untrusted") == 0) {
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if (argc-- < 1)
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goto usage;
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untrusted = *++argv;
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} else if (strcmp(*argv, "-engine") == 0) {
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if (argc-- < 1)
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goto usage;
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engine = *++argv;
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} else if ((md = EVP_get_digestbyname(*argv + 1)) != NULL) {
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/* empty. */
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} else
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goto usage;
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}
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/* Seed the random number generator if it is going to be used. */
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if (mode == CMD_QUERY && !no_nonce) {
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if (!app_RAND_load_file(NULL, bio_err, 1) && rnd == NULL)
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BIO_printf(bio_err, "warning, not much extra random "
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"data, consider using the -rand option\n");
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if (rnd != NULL)
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BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
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app_RAND_load_files(rnd));
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}
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/* Get the password if required. */
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if (mode == CMD_REPLY && passin &&
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!app_passwd(bio_err, passin, NULL, &password, NULL)) {
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BIO_printf(bio_err, "Error getting password.\n");
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goto cleanup;
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}
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/*
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* Check consistency of parameters and execute the appropriate function.
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*/
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switch (mode) {
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case CMD_NONE:
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goto usage;
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case CMD_QUERY:
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/*
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* Data file and message imprint cannot be specified at the same
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* time.
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*/
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ret = data != NULL && digest != NULL;
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if (ret)
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goto usage;
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/* Load the config file for possible policy OIDs. */
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conf = load_config_file(configfile);
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ret = !query_command(data, digest, md, policy, no_nonce, cert,
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in, out, text);
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break;
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case CMD_REPLY:
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conf = load_config_file(configfile);
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if (in == NULL) {
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ret = !(queryfile != NULL && conf != NULL && !token_in);
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if (ret)
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goto usage;
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} else {
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/* 'in' and 'queryfile' are exclusive. */
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ret = !(queryfile == NULL);
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if (ret)
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goto usage;
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}
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ret = !reply_command(conf, section, engine, queryfile,
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password, inkey, signer, chain, policy,
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in, token_in, out, token_out, text);
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break;
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case CMD_VERIFY:
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ret = !(((queryfile && !data && !digest)
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|| (!queryfile && data && !digest)
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|| (!queryfile && !data && digest))
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&& in != NULL);
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if (ret)
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goto usage;
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ret = !verify_command(data, digest, queryfile, in, token_in,
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ca_path, ca_file, untrusted);
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}
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goto cleanup;
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usage:
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BIO_printf(bio_err, "usage:\n"
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"ts -query [-rand file%cfile%c...] [-config configfile] "
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"[-data file_to_hash] [-digest digest_bytes]"
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"[-md2|-md4|-md5|-sha|-sha1|-mdc2|-ripemd160] "
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"[-policy object_id] [-no_nonce] [-cert] "
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"[-in request.tsq] [-out request.tsq] [-text]\n",
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LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
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BIO_printf(bio_err, "or\n"
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"ts -reply [-config configfile] [-section tsa_section] "
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"[-queryfile request.tsq] [-passin password] "
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"[-signer tsa_cert.pem] [-inkey private_key.pem] "
|
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"[-chain certs_file.pem] [-policy object_id] "
|
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"[-in response.tsr] [-token_in] "
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"[-out response.tsr] [-token_out] [-text] [-engine id]\n");
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BIO_printf(bio_err, "or\n"
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"ts -verify [-data file_to_hash] [-digest digest_bytes] "
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"[-queryfile request.tsq] "
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"-in response.tsr [-token_in] "
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"-CApath ca_path -CAfile ca_file.pem "
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"-untrusted cert_file.pem\n");
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cleanup:
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/* Clean up. */
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app_RAND_write_file(NULL, bio_err);
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NCONF_free(conf);
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OPENSSL_free(password);
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OBJ_cleanup();
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if (free_bio_err) {
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BIO_free_all(bio_err);
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bio_err = NULL;
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}
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|
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OPENSSL_EXIT(ret);
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}
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|
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/*
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* Configuration file-related function definitions.
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*/
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|
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static ASN1_OBJECT *txt2obj(const char *oid)
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{
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ASN1_OBJECT *oid_obj = NULL;
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if (!(oid_obj = OBJ_txt2obj(oid, 0)))
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BIO_printf(bio_err, "cannot convert %s to OID\n", oid);
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return oid_obj;
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}
|
|
|
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static CONF *load_config_file(const char *configfile)
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{
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CONF *conf = NULL;
|
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long errorline = -1;
|
|
|
|
if (!configfile)
|
|
configfile = getenv("OPENSSL_CONF");
|
|
if (!configfile)
|
|
configfile = getenv("SSLEAY_CONF");
|
|
|
|
if (configfile &&
|
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(!(conf = NCONF_new(NULL)) ||
|
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NCONF_load(conf, configfile, &errorline) <= 0)) {
|
|
if (errorline <= 0)
|
|
BIO_printf(bio_err, "error loading the config file "
|
|
"'%s'\n", configfile);
|
|
else
|
|
BIO_printf(bio_err, "error on line %ld of config file "
|
|
"'%s'\n", errorline, configfile);
|
|
}
|
|
|
|
if (conf != NULL) {
|
|
const char *p;
|
|
|
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BIO_printf(bio_err, "Using configuration from %s\n", configfile);
|
|
p = NCONF_get_string(conf, NULL, ENV_OID_FILE);
|
|
if (p != NULL) {
|
|
BIO *oid_bio = BIO_new_file(p, "r");
|
|
if (!oid_bio)
|
|
ERR_print_errors(bio_err);
|
|
else {
|
|
OBJ_create_objects(oid_bio);
|
|
BIO_free_all(oid_bio);
|
|
}
|
|
} else
|
|
ERR_clear_error();
|
|
if (!add_oid_section(bio_err, conf))
|
|
ERR_print_errors(bio_err);
|
|
}
|
|
return conf;
|
|
}
|
|
|
|
/*
|
|
* Query-related method definitions.
|
|
*/
|
|
|
|
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)
|
|
{
|
|
int ret = 0;
|
|
TS_REQ *query = NULL;
|
|
BIO *in_bio = NULL;
|
|
BIO *data_bio = NULL;
|
|
BIO *out_bio = NULL;
|
|
|
|
/* Build query object either from file or from scratch. */
|
|
if (in != NULL) {
|
|
if ((in_bio = BIO_new_file(in, "rb")) == NULL)
|
|
goto end;
|
|
query = d2i_TS_REQ_bio(in_bio, NULL);
|
|
} else {
|
|
/*
|
|
* Open the file if no explicit digest bytes were specified.
|
|
*/
|
|
if (!digest && !(data_bio = BIO_open_with_default(data, "rb", stdin)))
|
|
goto end;
|
|
/* Creating the query object. */
|
|
query = create_query(data_bio, digest, md, policy, no_nonce, cert);
|
|
/* Saving the random number generator state. */
|
|
}
|
|
if (query == NULL)
|
|
goto end;
|
|
|
|
/* Write query either in ASN.1 or in text format. */
|
|
if ((out_bio = BIO_open_with_default(out, "wb", stdout)) == NULL)
|
|
goto end;
|
|
if (text) {
|
|
/* Text output. */
|
|
if (!TS_REQ_print_bio(out_bio, query))
|
|
goto end;
|
|
} else {
|
|
/* ASN.1 output. */
|
|
if (!i2d_TS_REQ_bio(out_bio, query))
|
|
goto end;
|
|
}
|
|
|
|
ret = 1;
|
|
|
|
end:
|
|
ERR_print_errors(bio_err);
|
|
|
|
/* Clean up. */
|
|
BIO_free_all(in_bio);
|
|
BIO_free_all(data_bio);
|
|
BIO_free_all(out_bio);
|
|
TS_REQ_free(query);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static BIO *BIO_open_with_default(const char *file, const char *mode,
|
|
FILE *default_fp)
|
|
{
|
|
return file == NULL ? BIO_new_fp(default_fp, BIO_NOCLOSE)
|
|
: BIO_new_file(file, mode);
|
|
}
|
|
|
|
static TS_REQ *create_query(BIO *data_bio, char *digest, const EVP_MD *md,
|
|
const char *policy, int no_nonce, int cert)
|
|
{
|
|
int ret = 0;
|
|
TS_REQ *ts_req = NULL;
|
|
int len;
|
|
TS_MSG_IMPRINT *msg_imprint = NULL;
|
|
X509_ALGOR *algo = NULL;
|
|
unsigned char *data = NULL;
|
|
ASN1_OBJECT *policy_obj = NULL;
|
|
ASN1_INTEGER *nonce_asn1 = NULL;
|
|
|
|
/* Setting default message digest. */
|
|
if (!md && !(md = EVP_get_digestbyname("sha1")))
|
|
goto err;
|
|
|
|
/* Creating request object. */
|
|
if (!(ts_req = TS_REQ_new()))
|
|
goto err;
|
|
|
|
/* Setting version. */
|
|
if (!TS_REQ_set_version(ts_req, 1))
|
|
goto err;
|
|
|
|
/* Creating and adding MSG_IMPRINT object. */
|
|
if (!(msg_imprint = TS_MSG_IMPRINT_new()))
|
|
goto err;
|
|
|
|
/* Adding algorithm. */
|
|
if (!(algo = X509_ALGOR_new()))
|
|
goto err;
|
|
if (!(algo->algorithm = OBJ_nid2obj(EVP_MD_type(md))))
|
|
goto err;
|
|
if (!(algo->parameter = ASN1_TYPE_new()))
|
|
goto err;
|
|
algo->parameter->type = V_ASN1_NULL;
|
|
if (!TS_MSG_IMPRINT_set_algo(msg_imprint, algo))
|
|
goto err;
|
|
|
|
/* Adding message digest. */
|
|
if ((len = create_digest(data_bio, digest, md, &data)) == 0)
|
|
goto err;
|
|
if (!TS_MSG_IMPRINT_set_msg(msg_imprint, data, len))
|
|
goto err;
|
|
|
|
if (!TS_REQ_set_msg_imprint(ts_req, msg_imprint))
|
|
goto err;
|
|
|
|
/* Setting policy if requested. */
|
|
if (policy && !(policy_obj = txt2obj(policy)))
|
|
goto err;
|
|
if (policy_obj && !TS_REQ_set_policy_id(ts_req, policy_obj))
|
|
goto err;
|
|
|
|
/* Setting nonce if requested. */
|
|
if (!no_nonce && !(nonce_asn1 = create_nonce(NONCE_LENGTH)))
|
|
goto err;
|
|
if (nonce_asn1 && !TS_REQ_set_nonce(ts_req, nonce_asn1))
|
|
goto err;
|
|
|
|
/* Setting certificate request flag if requested. */
|
|
if (!TS_REQ_set_cert_req(ts_req, cert))
|
|
goto err;
|
|
|
|
ret = 1;
|
|
err:
|
|
if (!ret) {
|
|
TS_REQ_free(ts_req);
|
|
ts_req = NULL;
|
|
BIO_printf(bio_err, "could not create query\n");
|
|
}
|
|
TS_MSG_IMPRINT_free(msg_imprint);
|
|
X509_ALGOR_free(algo);
|
|
OPENSSL_free(data);
|
|
ASN1_OBJECT_free(policy_obj);
|
|
ASN1_INTEGER_free(nonce_asn1);
|
|
return ts_req;
|
|
}
|
|
|
|
static int create_digest(BIO *input, char *digest, const EVP_MD *md,
|
|
unsigned char **md_value)
|
|
{
|
|
int md_value_len;
|
|
|
|
md_value_len = EVP_MD_size(md);
|
|
if (md_value_len < 0)
|
|
goto err;
|
|
if (input) {
|
|
/* Digest must be computed from an input file. */
|
|
EVP_MD_CTX md_ctx;
|
|
unsigned char buffer[4096];
|
|
int length;
|
|
|
|
*md_value = OPENSSL_malloc(md_value_len);
|
|
if (*md_value == 0)
|
|
goto err;
|
|
|
|
EVP_DigestInit(&md_ctx, md);
|
|
while ((length = BIO_read(input, buffer, sizeof(buffer))) > 0) {
|
|
EVP_DigestUpdate(&md_ctx, buffer, length);
|
|
}
|
|
EVP_DigestFinal(&md_ctx, *md_value, NULL);
|
|
} else {
|
|
/* Digest bytes are specified with digest. */
|
|
long digest_len;
|
|
*md_value = string_to_hex(digest, &digest_len);
|
|
if (!*md_value || md_value_len != digest_len) {
|
|
OPENSSL_free(*md_value);
|
|
*md_value = NULL;
|
|
BIO_printf(bio_err, "bad digest, %d bytes "
|
|
"must be specified\n", md_value_len);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return md_value_len;
|
|
err:
|
|
return 0;
|
|
}
|
|
|
|
static ASN1_INTEGER *create_nonce(int bits)
|
|
{
|
|
unsigned char buf[20];
|
|
ASN1_INTEGER *nonce = NULL;
|
|
int len = (bits - 1) / 8 + 1;
|
|
int i;
|
|
|
|
/* Generating random byte sequence. */
|
|
if (len > (int)sizeof(buf))
|
|
goto err;
|
|
if (RAND_bytes(buf, len) <= 0)
|
|
goto err;
|
|
|
|
/* Find the first non-zero byte and creating ASN1_INTEGER object. */
|
|
for (i = 0; i < len && !buf[i]; ++i) ;
|
|
if (!(nonce = ASN1_INTEGER_new()))
|
|
goto err;
|
|
OPENSSL_free(nonce->data);
|
|
/* Allocate at least one byte. */
|
|
nonce->length = len - i;
|
|
if (!(nonce->data = OPENSSL_malloc(nonce->length + 1)))
|
|
goto err;
|
|
memcpy(nonce->data, buf + i, nonce->length);
|
|
|
|
return nonce;
|
|
err:
|
|
BIO_printf(bio_err, "could not create nonce\n");
|
|
ASN1_INTEGER_free(nonce);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Reply-related method definitions.
|
|
*/
|
|
|
|
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)
|
|
{
|
|
int ret = 0;
|
|
TS_RESP *response = NULL;
|
|
BIO *in_bio = NULL;
|
|
BIO *query_bio = NULL;
|
|
BIO *inkey_bio = NULL;
|
|
BIO *signer_bio = NULL;
|
|
BIO *out_bio = NULL;
|
|
|
|
/* Build response object either from response or query. */
|
|
if (in != NULL) {
|
|
if ((in_bio = BIO_new_file(in, "rb")) == NULL)
|
|
goto end;
|
|
if (token_in) {
|
|
/*
|
|
* We have a ContentInfo (PKCS7) object, add 'granted' status
|
|
* info around it.
|
|
*/
|
|
response = read_PKCS7(in_bio);
|
|
} else {
|
|
/* We have a ready-made TS_RESP object. */
|
|
response = d2i_TS_RESP_bio(in_bio, NULL);
|
|
}
|
|
} else {
|
|
response = create_response(conf, section, engine, queryfile,
|
|
passin, inkey, signer, chain, policy);
|
|
if (response)
|
|
BIO_printf(bio_err, "Response has been generated.\n");
|
|
else
|
|
BIO_printf(bio_err, "Response is not generated.\n");
|
|
}
|
|
if (response == NULL)
|
|
goto end;
|
|
|
|
/* Write response either in ASN.1 or text format. */
|
|
if ((out_bio = BIO_open_with_default(out, "wb", stdout)) == NULL)
|
|
goto end;
|
|
if (text) {
|
|
/* Text output. */
|
|
if (token_out) {
|
|
TS_TST_INFO *tst_info = TS_RESP_get_tst_info(response);
|
|
if (!TS_TST_INFO_print_bio(out_bio, tst_info))
|
|
goto end;
|
|
} else {
|
|
if (!TS_RESP_print_bio(out_bio, response))
|
|
goto end;
|
|
}
|
|
} else {
|
|
/* ASN.1 DER output. */
|
|
if (token_out) {
|
|
PKCS7 *token = TS_RESP_get_token(response);
|
|
if (!i2d_PKCS7_bio(out_bio, token))
|
|
goto end;
|
|
} else {
|
|
if (!i2d_TS_RESP_bio(out_bio, response))
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
ret = 1;
|
|
|
|
end:
|
|
ERR_print_errors(bio_err);
|
|
|
|
/* Clean up. */
|
|
BIO_free_all(in_bio);
|
|
BIO_free_all(query_bio);
|
|
BIO_free_all(inkey_bio);
|
|
BIO_free_all(signer_bio);
|
|
BIO_free_all(out_bio);
|
|
TS_RESP_free(response);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Reads a PKCS7 token and adds default 'granted' status info to it. */
|
|
static TS_RESP *read_PKCS7(BIO *in_bio)
|
|
{
|
|
int ret = 0;
|
|
PKCS7 *token = NULL;
|
|
TS_TST_INFO *tst_info = NULL;
|
|
TS_RESP *resp = NULL;
|
|
TS_STATUS_INFO *si = NULL;
|
|
|
|
/* Read PKCS7 object and extract the signed time stamp info. */
|
|
if (!(token = d2i_PKCS7_bio(in_bio, NULL)))
|
|
goto end;
|
|
if (!(tst_info = PKCS7_to_TS_TST_INFO(token)))
|
|
goto end;
|
|
|
|
/* Creating response object. */
|
|
if (!(resp = TS_RESP_new()))
|
|
goto end;
|
|
|
|
/* Create granted status info. */
|
|
if (!(si = TS_STATUS_INFO_new()))
|
|
goto end;
|
|
if (!(ASN1_INTEGER_set(si->status, TS_STATUS_GRANTED)))
|
|
goto end;
|
|
if (!TS_RESP_set_status_info(resp, si))
|
|
goto end;
|
|
|
|
/* Setting encapsulated token. */
|
|
TS_RESP_set_tst_info(resp, token, tst_info);
|
|
token = NULL; /* Ownership is lost. */
|
|
tst_info = NULL; /* Ownership is lost. */
|
|
|
|
ret = 1;
|
|
end:
|
|
PKCS7_free(token);
|
|
TS_TST_INFO_free(tst_info);
|
|
if (!ret) {
|
|
TS_RESP_free(resp);
|
|
resp = NULL;
|
|
}
|
|
TS_STATUS_INFO_free(si);
|
|
return resp;
|
|
}
|
|
|
|
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)
|
|
{
|
|
int ret = 0;
|
|
TS_RESP *response = NULL;
|
|
BIO *query_bio = NULL;
|
|
TS_RESP_CTX *resp_ctx = NULL;
|
|
|
|
if (!(query_bio = BIO_new_file(queryfile, "rb")))
|
|
goto end;
|
|
|
|
/* Getting TSA configuration section. */
|
|
if (!(section = TS_CONF_get_tsa_section(conf, section)))
|
|
goto end;
|
|
|
|
/* Setting up response generation context. */
|
|
if (!(resp_ctx = TS_RESP_CTX_new()))
|
|
goto end;
|
|
|
|
/* Setting serial number provider callback. */
|
|
if (!TS_CONF_set_serial(conf, section, serial_cb, resp_ctx))
|
|
goto end;
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
/* Setting default OpenSSL engine. */
|
|
if (!TS_CONF_set_crypto_device(conf, section, engine))
|
|
goto end;
|
|
#endif
|
|
|
|
/* Setting TSA signer certificate. */
|
|
if (!TS_CONF_set_signer_cert(conf, section, signer, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting TSA signer certificate chain. */
|
|
if (!TS_CONF_set_certs(conf, section, chain, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting TSA signer private key. */
|
|
if (!TS_CONF_set_signer_key(conf, section, inkey, passin, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting default policy OID. */
|
|
if (!TS_CONF_set_def_policy(conf, section, policy, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting acceptable policy OIDs. */
|
|
if (!TS_CONF_set_policies(conf, section, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting the acceptable one-way hash algorithms. */
|
|
if (!TS_CONF_set_digests(conf, section, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting guaranteed time stamp accuracy. */
|
|
if (!TS_CONF_set_accuracy(conf, section, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting the precision of the time. */
|
|
if (!TS_CONF_set_clock_precision_digits(conf, section, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting the ordering flaf if requested. */
|
|
if (!TS_CONF_set_ordering(conf, section, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting the TSA name required flag if requested. */
|
|
if (!TS_CONF_set_tsa_name(conf, section, resp_ctx))
|
|
goto end;
|
|
|
|
/* Setting the ESS cert id chain flag if requested. */
|
|
if (!TS_CONF_set_ess_cert_id_chain(conf, section, resp_ctx))
|
|
goto end;
|
|
|
|
/* Creating the response. */
|
|
if (!(response = TS_RESP_create_response(resp_ctx, query_bio)))
|
|
goto end;
|
|
|
|
ret = 1;
|
|
end:
|
|
if (!ret) {
|
|
TS_RESP_free(response);
|
|
response = NULL;
|
|
}
|
|
TS_RESP_CTX_free(resp_ctx);
|
|
BIO_free_all(query_bio);
|
|
|
|
return response;
|
|
}
|
|
|
|
static ASN1_INTEGER *MS_CALLBACK serial_cb(TS_RESP_CTX *ctx, void *data)
|
|
{
|
|
const char *serial_file = (const char *)data;
|
|
ASN1_INTEGER *serial = next_serial(serial_file);
|
|
|
|
if (!serial) {
|
|
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
|
|
"Error during serial number "
|
|
"generation.");
|
|
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_ADD_INFO_NOT_AVAILABLE);
|
|
} else
|
|
save_ts_serial(serial_file, serial);
|
|
|
|
return serial;
|
|
}
|
|
|
|
static ASN1_INTEGER *next_serial(const char *serialfile)
|
|
{
|
|
int ret = 0;
|
|
BIO *in = NULL;
|
|
ASN1_INTEGER *serial = NULL;
|
|
BIGNUM *bn = NULL;
|
|
|
|
if (!(serial = ASN1_INTEGER_new()))
|
|
goto err;
|
|
|
|
if (!(in = BIO_new_file(serialfile, "r"))) {
|
|
ERR_clear_error();
|
|
BIO_printf(bio_err, "Warning: could not open file %s for "
|
|
"reading, using serial number: 1\n", serialfile);
|
|
if (!ASN1_INTEGER_set(serial, 1))
|
|
goto err;
|
|
} else {
|
|
char buf[1024];
|
|
if (!a2i_ASN1_INTEGER(in, serial, buf, sizeof(buf))) {
|
|
BIO_printf(bio_err, "unable to load number from %s\n",
|
|
serialfile);
|
|
goto err;
|
|
}
|
|
if (!(bn = ASN1_INTEGER_to_BN(serial, NULL)))
|
|
goto err;
|
|
ASN1_INTEGER_free(serial);
|
|
serial = NULL;
|
|
if (!BN_add_word(bn, 1))
|
|
goto err;
|
|
if (!(serial = BN_to_ASN1_INTEGER(bn, NULL)))
|
|
goto err;
|
|
}
|
|
ret = 1;
|
|
err:
|
|
if (!ret) {
|
|
ASN1_INTEGER_free(serial);
|
|
serial = NULL;
|
|
}
|
|
BIO_free_all(in);
|
|
BN_free(bn);
|
|
return serial;
|
|
}
|
|
|
|
static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial)
|
|
{
|
|
int ret = 0;
|
|
BIO *out = NULL;
|
|
|
|
if (!(out = BIO_new_file(serialfile, "w")))
|
|
goto err;
|
|
if (i2a_ASN1_INTEGER(out, serial) <= 0)
|
|
goto err;
|
|
if (BIO_puts(out, "\n") <= 0)
|
|
goto err;
|
|
ret = 1;
|
|
err:
|
|
if (!ret)
|
|
BIO_printf(bio_err, "could not save serial number to %s\n",
|
|
serialfile);
|
|
BIO_free_all(out);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Verify-related method definitions.
|
|
*/
|
|
|
|
static int verify_command(char *data, char *digest, char *queryfile,
|
|
char *in, int token_in,
|
|
char *ca_path, char *ca_file, char *untrusted)
|
|
{
|
|
BIO *in_bio = NULL;
|
|
PKCS7 *token = NULL;
|
|
TS_RESP *response = NULL;
|
|
TS_VERIFY_CTX *verify_ctx = NULL;
|
|
int ret = 0;
|
|
|
|
/* Decode the token (PKCS7) or response (TS_RESP) files. */
|
|
if (!(in_bio = BIO_new_file(in, "rb")))
|
|
goto end;
|
|
if (token_in) {
|
|
if (!(token = d2i_PKCS7_bio(in_bio, NULL)))
|
|
goto end;
|
|
} else {
|
|
if (!(response = d2i_TS_RESP_bio(in_bio, NULL)))
|
|
goto end;
|
|
}
|
|
|
|
if (!(verify_ctx = create_verify_ctx(data, digest, queryfile,
|
|
ca_path, ca_file, untrusted)))
|
|
goto end;
|
|
|
|
/* Checking the token or response against the request. */
|
|
ret = token_in ?
|
|
TS_RESP_verify_token(verify_ctx, token) :
|
|
TS_RESP_verify_response(verify_ctx, response);
|
|
|
|
end:
|
|
printf("Verification: ");
|
|
if (ret)
|
|
printf("OK\n");
|
|
else {
|
|
printf("FAILED\n");
|
|
/* Print errors, if there are any. */
|
|
ERR_print_errors(bio_err);
|
|
}
|
|
|
|
/* Clean up. */
|
|
BIO_free_all(in_bio);
|
|
PKCS7_free(token);
|
|
TS_RESP_free(response);
|
|
TS_VERIFY_CTX_free(verify_ctx);
|
|
return ret;
|
|
}
|
|
|
|
static TS_VERIFY_CTX *create_verify_ctx(char *data, char *digest,
|
|
char *queryfile,
|
|
char *ca_path, char *ca_file,
|
|
char *untrusted)
|
|
{
|
|
TS_VERIFY_CTX *ctx = NULL;
|
|
BIO *input = NULL;
|
|
TS_REQ *request = NULL;
|
|
int ret = 0;
|
|
|
|
if (data != NULL || digest != NULL) {
|
|
if (!(ctx = TS_VERIFY_CTX_new()))
|
|
goto err;
|
|
ctx->flags = TS_VFY_VERSION | TS_VFY_SIGNER;
|
|
if (data != NULL) {
|
|
ctx->flags |= TS_VFY_DATA;
|
|
if (!(ctx->data = BIO_new_file(data, "rb")))
|
|
goto err;
|
|
} else if (digest != NULL) {
|
|
long imprint_len;
|
|
ctx->flags |= TS_VFY_IMPRINT;
|
|
if (!(ctx->imprint = string_to_hex(digest, &imprint_len))) {
|
|
BIO_printf(bio_err, "invalid digest string\n");
|
|
goto err;
|
|
}
|
|
ctx->imprint_len = imprint_len;
|
|
}
|
|
|
|
} else if (queryfile != NULL) {
|
|
/*
|
|
* The request has just to be read, decoded and converted to a verify
|
|
* context object.
|
|
*/
|
|
if (!(input = BIO_new_file(queryfile, "rb")))
|
|
goto err;
|
|
if (!(request = d2i_TS_REQ_bio(input, NULL)))
|
|
goto err;
|
|
if (!(ctx = TS_REQ_to_TS_VERIFY_CTX(request, NULL)))
|
|
goto err;
|
|
} else
|
|
return NULL;
|
|
|
|
/* Add the signature verification flag and arguments. */
|
|
ctx->flags |= TS_VFY_SIGNATURE;
|
|
|
|
/* Initialising the X509_STORE object. */
|
|
if (!(ctx->store = create_cert_store(ca_path, ca_file)))
|
|
goto err;
|
|
|
|
/* Loading untrusted certificates. */
|
|
if (untrusted && !(ctx->certs = TS_CONF_load_certs(untrusted)))
|
|
goto err;
|
|
|
|
ret = 1;
|
|
err:
|
|
if (!ret) {
|
|
TS_VERIFY_CTX_free(ctx);
|
|
ctx = NULL;
|
|
}
|
|
BIO_free_all(input);
|
|
TS_REQ_free(request);
|
|
return ctx;
|
|
}
|
|
|
|
static X509_STORE *create_cert_store(char *ca_path, char *ca_file)
|
|
{
|
|
X509_STORE *cert_ctx = NULL;
|
|
X509_LOOKUP *lookup = NULL;
|
|
int i;
|
|
|
|
/* Creating the X509_STORE object. */
|
|
cert_ctx = X509_STORE_new();
|
|
|
|
/* Setting the callback for certificate chain verification. */
|
|
X509_STORE_set_verify_cb(cert_ctx, verify_cb);
|
|
|
|
/* Adding a trusted certificate directory source. */
|
|
if (ca_path) {
|
|
lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_hash_dir());
|
|
if (lookup == NULL) {
|
|
BIO_printf(bio_err, "memory allocation failure\n");
|
|
goto err;
|
|
}
|
|
i = X509_LOOKUP_add_dir(lookup, ca_path, X509_FILETYPE_PEM);
|
|
if (!i) {
|
|
BIO_printf(bio_err, "Error loading directory %s\n", ca_path);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
/* Adding a trusted certificate file source. */
|
|
if (ca_file) {
|
|
lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_file());
|
|
if (lookup == NULL) {
|
|
BIO_printf(bio_err, "memory allocation failure\n");
|
|
goto err;
|
|
}
|
|
i = X509_LOOKUP_load_file(lookup, ca_file, X509_FILETYPE_PEM);
|
|
if (!i) {
|
|
BIO_printf(bio_err, "Error loading file %s\n", ca_file);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return cert_ctx;
|
|
err:
|
|
X509_STORE_free(cert_ctx);
|
|
return NULL;
|
|
}
|
|
|
|
static int MS_CALLBACK verify_cb(int ok, X509_STORE_CTX *ctx)
|
|
{
|
|
/*-
|
|
char buf[256];
|
|
|
|
if (!ok)
|
|
{
|
|
X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),
|
|
buf, sizeof(buf));
|
|
printf("%s\n", buf);
|
|
printf("error %d at %d depth lookup: %s\n",
|
|
ctx->error, ctx->error_depth,
|
|
X509_verify_cert_error_string(ctx->error));
|
|
}
|
|
*/
|
|
|
|
return ok;
|
|
}
|