999 lines
31 KiB
C
999 lines
31 KiB
C
/*
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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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/* Request nonce length, in bits (must be a multiple of 8). */
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#define NONCE_LENGTH 64
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/* Name of config entry that defines the OID file. */
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#define ENV_OID_FILE "oid_file"
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/* Is |EXACTLY_ONE| of three pointers set? */
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#define EXACTLY_ONE(a, b, c) \
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(( a && !b && !c) || \
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( b && !a && !c) || \
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( c && !a && !b))
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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 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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const EVP_MD *md, char *signer, char *chain,
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const char *policy, char *in, int token_in,
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char *out, int token_out, 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,
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char *inkey, const EVP_MD *md, char *signer,
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char *chain, const char *policy);
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static ASN1_INTEGER *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 *CApath, char *CAfile, 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 *CApath, char *CAfile,
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char *untrusted);
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static X509_STORE *create_cert_store(char *CApath, char *CAfile);
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static int verify_cb(int ok, X509_STORE_CTX *ctx);
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typedef enum OPTION_choice {
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OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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OPT_ENGINE, OPT_CONFIG, OPT_SECTION, OPT_QUERY, OPT_DATA,
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OPT_DIGEST, OPT_RAND, OPT_POLICY, OPT_NO_NONCE, OPT_CERT,
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OPT_IN, OPT_TOKEN_IN, OPT_OUT, OPT_TOKEN_OUT, OPT_TEXT,
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OPT_REPLY, OPT_QUERYFILE, OPT_PASSIN, OPT_INKEY, OPT_SIGNER,
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OPT_CHAIN, OPT_VERIFY, OPT_CAPATH, OPT_CAFILE, OPT_UNTRUSTED,
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OPT_MD
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} OPTION_CHOICE;
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OPTIONS ts_options[] = {
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{"help", OPT_HELP, '-', "Display this summary"},
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{"config", OPT_CONFIG, '<', "Configuration file"},
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{"section", OPT_SECTION, 's', "Section to use within config file"},
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{"query", OPT_QUERY, '-', "Generate a TS query"},
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{"data", OPT_DATA, '<', "File to hash"},
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{"digest", OPT_DIGEST, 's', "Digest (as a hex string)"},
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{"rand", OPT_RAND, 's',
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"Load the file(s) into the random number generator"},
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{"policy", OPT_POLICY, 's', "Policy OID to use"},
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{"no_nonce", OPT_NO_NONCE, '-', "Do not include a nonce"},
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{"cert", OPT_CERT, '-', "Put cert request into query"},
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{"in", OPT_IN, '<', "Input file"},
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{"token_in", OPT_TOKEN_IN, '-', "Input is a PKCS#7 file"},
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{"out", OPT_OUT, '>', "Output file"},
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{"token_out", OPT_TOKEN_OUT, '-', "Output is a PKCS#7 file"},
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{"text", OPT_TEXT, '-', "Output text (not DER)"},
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{"reply", OPT_REPLY, '-', "Generate a TS reply"},
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{"queryfile", OPT_QUERYFILE, '<', "File containing a TS query"},
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{"passin", OPT_PASSIN, 's'},
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{"inkey", OPT_INKEY, '<', "File with private key for reply"},
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{"signer", OPT_SIGNER, 's'},
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{"chain", OPT_CHAIN, '<', "File with signer CA chain"},
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{"verify", OPT_VERIFY, '-', "Verify a TS response"},
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{"CApath", OPT_CAPATH, '/', "Path to trusted CA files"},
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{"CAfile", OPT_CAFILE, '<', "File with trusted CA certs"},
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{"untrusted", OPT_UNTRUSTED, '<', "File with untrusted certs"},
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{"", OPT_MD, '-', "Any supported digest"},
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#ifndef OPENSSL_NO_ENGINE
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{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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#endif
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{NULL}
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};
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/*
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* This comand is so complex, special help is needed.
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*/
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static char* opt_helplist[] = {
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"Typical uses:",
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"ts -query [-rand file...] [-config file] [-data file]",
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" [-digest hexstring] [-policy oid] [-no_nonce] [-cert]",
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" [-in file] [-out file] [-text]",
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" or",
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"ts -reply [-config file] [-section tsa_section]",
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" [-queryfile file] [-passin password]",
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" [-signer tsa_cert.pem] [-inkey private_key.pem]",
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" [-chain certs_file.pem] [-policy oid]",
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" [-in file] [-token_in] [-out file] [-token_out]",
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#ifndef OPENSSL_NO_ENGINE
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" [-text]",
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#else
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" [-text] [-engine id]",
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#endif
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" or",
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"ts -verify -CApath dir -CAfile file.pem -untrusted file.pem",
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" [-data file] [-digest hexstring]",
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" [-queryfile file] -in file [-token_in]",
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NULL,
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};
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int ts_main(int argc, char **argv)
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{
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CONF *conf = NULL;
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char *CAfile = NULL, *untrusted = NULL, *engine = NULL, *prog, **helpp;
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char *configfile = default_config_file;
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char *section = NULL, *password = NULL;
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char *data = NULL, *digest = NULL, *rnd = NULL, *policy = NULL;
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char *in = NULL, *out = NULL, *queryfile = NULL, *passin = NULL;
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char *inkey = NULL, *signer = NULL, *chain = NULL, *CApath = NULL;
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const EVP_MD *md = NULL;
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OPTION_CHOICE o, mode = OPT_ERR;
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int ret = 1, no_nonce = 0, cert = 0, text = 0;
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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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prog = opt_init(argc, argv, ts_options);
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while ((o = opt_next()) != OPT_EOF) {
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switch (o) {
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case OPT_EOF:
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case OPT_ERR:
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opthelp:
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BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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goto end;
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case OPT_HELP:
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opt_help(ts_options);
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for (helpp = opt_helplist; *helpp; ++helpp)
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BIO_printf(bio_err, "%s\n", *helpp);
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ret = 0;
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goto end;
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case OPT_CONFIG:
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configfile = opt_arg();
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break;
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case OPT_SECTION:
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section = opt_arg();
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break;
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case OPT_QUERY:
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case OPT_REPLY:
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case OPT_VERIFY:
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if (mode != OPT_ERR)
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goto opthelp;
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mode = o;
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break;
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case OPT_DATA:
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data = opt_arg();
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break;
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case OPT_DIGEST:
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digest = opt_arg();
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break;
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case OPT_RAND:
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rnd = opt_arg();
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break;
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case OPT_POLICY:
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policy = opt_arg();
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break;
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case OPT_NO_NONCE:
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no_nonce = 1;
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break;
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case OPT_CERT:
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cert = 1;
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break;
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case OPT_IN:
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in = opt_arg();
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break;
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case OPT_TOKEN_IN:
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token_in = 1;
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break;
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case OPT_OUT:
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out = opt_arg();
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break;
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case OPT_TOKEN_OUT:
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token_out = 1;
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break;
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case OPT_TEXT:
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text = 1;
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break;
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case OPT_QUERYFILE:
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queryfile = opt_arg();
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break;
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case OPT_PASSIN:
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passin = opt_arg();
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break;
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case OPT_INKEY:
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inkey = opt_arg();
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break;
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case OPT_SIGNER:
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signer = opt_arg();
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break;
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case OPT_CHAIN:
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chain = opt_arg();
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break;
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case OPT_CAPATH:
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CApath = opt_arg();
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break;
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case OPT_CAFILE:
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CAfile = opt_arg();
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break;
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case OPT_UNTRUSTED:
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untrusted = opt_arg();
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break;
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case OPT_ENGINE:
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engine = opt_arg();
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break;
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case OPT_MD:
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if (!opt_md(opt_unknown(), &md))
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goto opthelp;
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break;
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}
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}
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argc = opt_num_rest();
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argv = opt_rest();
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if (mode == OPT_ERR || argc != 0)
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goto opthelp;
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/* Seed the random number generator if it is going to be used. */
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if (mode == OPT_QUERY && !no_nonce) {
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if (!app_RAND_load_file(NULL, 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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if (mode == OPT_REPLY && passin &&
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!app_passwd(passin, NULL, &password, NULL)) {
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BIO_printf(bio_err, "Error getting password.\n");
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goto end;
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}
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conf = load_config_file(configfile);
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if (!app_load_modules(conf))
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goto end;
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/* Check parameter consistency and execute the appropriate function. */
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switch (mode) {
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default:
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case OPT_ERR:
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goto opthelp;
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case OPT_QUERY:
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if ((data != NULL) && (digest != NULL))
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goto opthelp;
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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 OPT_REPLY:
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if ((in != NULL) && (queryfile != NULL))
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goto opthelp;
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if (in == NULL) {
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if ((conf == NULL) || (token_in != 0))
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goto opthelp;
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}
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ret = !reply_command(conf, section, engine, queryfile,
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password, inkey, md, signer, chain, policy,
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in, token_in, out, token_out, text);
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break;
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case OPT_VERIFY:
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if ((in == NULL) || !EXACTLY_ONE(queryfile, data, digest))
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goto opthelp;
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ret = !verify_command(data, digest, queryfile, in, token_in,
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CApath, CAfile, untrusted);
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}
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end:
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app_RAND_write_file(NULL);
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NCONF_free(conf);
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OPENSSL_free(password);
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OBJ_cleanup();
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return (ret);
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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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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)) == NULL)
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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 = app_load_config(configfile);
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if (conf != NULL) {
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const char *p;
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BIO_printf(bio_err, "Using configuration from %s\n", configfile);
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p = NCONF_get_string(conf, NULL, ENV_OID_FILE);
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if (p != NULL) {
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BIO *oid_bio = BIO_new_file(p, "r");
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if (!oid_bio)
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ERR_print_errors(bio_err);
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else {
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OBJ_create_objects(oid_bio);
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BIO_free_all(oid_bio);
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}
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} else
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ERR_clear_error();
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if (!add_oid_section(conf))
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ERR_print_errors(bio_err);
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}
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return conf;
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}
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/*
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* Query-related method definitions.
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*/
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static int query_command(const char *data, char *digest, const EVP_MD *md,
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const char *policy, int no_nonce,
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int cert, const char *in, const char *out, int text)
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{
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int ret = 0;
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TS_REQ *query = NULL;
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BIO *in_bio = NULL;
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BIO *data_bio = NULL;
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BIO *out_bio = NULL;
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/* Build query object. */
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if (in != NULL) {
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if ((in_bio = bio_open_default(in, 'r', FORMAT_ASN1)) == NULL)
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goto end;
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query = d2i_TS_REQ_bio(in_bio, NULL);
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} else {
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if (digest == NULL
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&& (data_bio = bio_open_default(data, 'r', FORMAT_ASN1)) == NULL)
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goto end;
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query = create_query(data_bio, digest, md, policy, no_nonce, cert);
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}
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if (query == NULL)
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goto end;
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if (text) {
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if ((out_bio = bio_open_default(out, 'w', FORMAT_TEXT)) == NULL)
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goto end;
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if (!TS_REQ_print_bio(out_bio, query))
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goto end;
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} else {
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if ((out_bio = bio_open_default(out, 'w', FORMAT_ASN1)) == NULL)
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goto end;
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if (!i2d_TS_REQ_bio(out_bio, query))
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goto end;
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}
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ret = 1;
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end:
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ERR_print_errors(bio_err);
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BIO_free_all(in_bio);
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BIO_free_all(data_bio);
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BIO_free_all(out_bio);
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TS_REQ_free(query);
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return ret;
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}
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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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{
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int ret = 0;
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TS_REQ *ts_req = NULL;
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int len;
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TS_MSG_IMPRINT *msg_imprint = NULL;
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X509_ALGOR *algo = NULL;
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unsigned char *data = NULL;
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ASN1_OBJECT *policy_obj = NULL;
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ASN1_INTEGER *nonce_asn1 = NULL;
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if (md == NULL && (md = EVP_get_digestbyname("sha1")) == NULL)
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goto err;
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if ((ts_req = TS_REQ_new()) == NULL)
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goto err;
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if (!TS_REQ_set_version(ts_req, 1))
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goto err;
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if ((msg_imprint = TS_MSG_IMPRINT_new()) == NULL)
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goto err;
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if ((algo = X509_ALGOR_new()) == NULL)
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goto err;
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if ((algo->algorithm = OBJ_nid2obj(EVP_MD_type(md))) == NULL)
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goto err;
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if ((algo->parameter = ASN1_TYPE_new()) == NULL)
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goto err;
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algo->parameter->type = V_ASN1_NULL;
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if (!TS_MSG_IMPRINT_set_algo(msg_imprint, algo))
|
|
goto err;
|
|
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;
|
|
if (policy && (policy_obj = txt2obj(policy)) == NULL)
|
|
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)) == NULL)
|
|
goto err;
|
|
if (nonce_asn1 && !TS_REQ_set_nonce(ts_req, nonce_asn1))
|
|
goto err;
|
|
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");
|
|
ERR_print_errors(bio_err);
|
|
}
|
|
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)
|
|
return 0;
|
|
|
|
if (input) {
|
|
EVP_MD_CTX *md_ctx = EVP_MD_CTX_new();
|
|
unsigned char buffer[4096];
|
|
int length;
|
|
|
|
if (md_ctx == NULL)
|
|
return 0;
|
|
*md_value = app_malloc(md_value_len, "digest buffer");
|
|
EVP_DigestInit(md_ctx, md);
|
|
while ((length = BIO_read(input, buffer, sizeof(buffer))) > 0) {
|
|
EVP_DigestUpdate(md_ctx, buffer, length);
|
|
}
|
|
if (!EVP_DigestFinal(md_ctx, *md_value, NULL)) {
|
|
EVP_MD_CTX_free(md_ctx);
|
|
return 0;
|
|
}
|
|
EVP_MD_CTX_free(md_ctx);
|
|
} else {
|
|
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);
|
|
return 0;
|
|
}
|
|
}
|
|
return md_value_len;
|
|
}
|
|
|
|
static ASN1_INTEGER *create_nonce(int bits)
|
|
{
|
|
unsigned char buf[20];
|
|
ASN1_INTEGER *nonce = NULL;
|
|
int len = (bits - 1) / 8 + 1;
|
|
int i;
|
|
|
|
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)
|
|
continue;
|
|
if ((nonce = ASN1_INTEGER_new()) == NULL)
|
|
goto err;
|
|
OPENSSL_free(nonce->data);
|
|
nonce->length = len - i;
|
|
nonce->data = app_malloc(nonce->length + 1, "nonce buffer");
|
|
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,
|
|
const EVP_MD *md, 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;
|
|
|
|
if (in != NULL) {
|
|
if ((in_bio = BIO_new_file(in, "rb")) == NULL)
|
|
goto end;
|
|
if (token_in) {
|
|
response = read_PKCS7(in_bio);
|
|
} else {
|
|
response = d2i_TS_RESP_bio(in_bio, NULL);
|
|
}
|
|
} else {
|
|
response = create_response(conf, section, engine, queryfile,
|
|
passin, inkey, md, 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. */
|
|
if (text) {
|
|
if ((out_bio = bio_open_default(out, 'w', FORMAT_TEXT)) == NULL)
|
|
goto end;
|
|
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 {
|
|
if ((out_bio = bio_open_default(out, 'w', FORMAT_ASN1)) == NULL)
|
|
goto end;
|
|
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);
|
|
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;
|
|
|
|
if ((token = d2i_PKCS7_bio(in_bio, NULL)) == NULL)
|
|
goto end;
|
|
if ((tst_info = PKCS7_to_TS_TST_INFO(token)) == NULL)
|
|
goto end;
|
|
if ((resp = TS_RESP_new()) == NULL)
|
|
goto end;
|
|
if ((si = TS_STATUS_INFO_new()) == NULL)
|
|
goto end;
|
|
if (!TS_STATUS_INFO_set_status(si, TS_STATUS_GRANTED))
|
|
goto end;
|
|
if (!TS_RESP_set_status_info(resp, si))
|
|
goto end;
|
|
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, const EVP_MD *md, 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")) == NULL)
|
|
goto end;
|
|
if ((section = TS_CONF_get_tsa_section(conf, section)) == NULL)
|
|
goto end;
|
|
if ((resp_ctx = TS_RESP_CTX_new()) == NULL)
|
|
goto end;
|
|
if (!TS_CONF_set_serial(conf, section, serial_cb, resp_ctx))
|
|
goto end;
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
if (!TS_CONF_set_crypto_device(conf, section, engine))
|
|
goto end;
|
|
#endif
|
|
if (!TS_CONF_set_signer_cert(conf, section, signer, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_certs(conf, section, chain, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_signer_key(conf, section, inkey, passin, resp_ctx))
|
|
goto end;
|
|
|
|
if (md) {
|
|
if (!TS_RESP_CTX_set_signer_digest(resp_ctx, md))
|
|
goto end;
|
|
} else if (!TS_CONF_set_signer_digest(conf, section, NULL, resp_ctx)) {
|
|
goto end;
|
|
}
|
|
|
|
if (!TS_CONF_set_def_policy(conf, section, policy, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_policies(conf, section, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_digests(conf, section, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_accuracy(conf, section, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_clock_precision_digits(conf, section, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_ordering(conf, section, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_tsa_name(conf, section, resp_ctx))
|
|
goto end;
|
|
if (!TS_CONF_set_ess_cert_id_chain(conf, section, resp_ctx))
|
|
goto end;
|
|
if ((response = TS_RESP_create_response(resp_ctx, query_bio)) == NULL)
|
|
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 *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()) == NULL)
|
|
goto err;
|
|
|
|
if ((in = BIO_new_file(serialfile, "r")) == NULL) {
|
|
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)) == 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)) == 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")) == NULL)
|
|
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 *CApath, char *CAfile, char *untrusted)
|
|
{
|
|
BIO *in_bio = NULL;
|
|
PKCS7 *token = NULL;
|
|
TS_RESP *response = NULL;
|
|
TS_VERIFY_CTX *verify_ctx = NULL;
|
|
int ret = 0;
|
|
|
|
if ((in_bio = BIO_new_file(in, "rb")) == NULL)
|
|
goto end;
|
|
if (token_in) {
|
|
if ((token = d2i_PKCS7_bio(in_bio, NULL)) == NULL)
|
|
goto end;
|
|
} else {
|
|
if ((response = d2i_TS_RESP_bio(in_bio, NULL)) == NULL)
|
|
goto end;
|
|
}
|
|
|
|
if ((verify_ctx = create_verify_ctx(data, digest, queryfile,
|
|
CApath, CAfile, untrusted)) == NULL)
|
|
goto end;
|
|
|
|
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");
|
|
ERR_print_errors(bio_err);
|
|
}
|
|
|
|
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 *CApath, char *CAfile,
|
|
char *untrusted)
|
|
{
|
|
TS_VERIFY_CTX *ctx = NULL;
|
|
BIO *input = NULL;
|
|
TS_REQ *request = NULL;
|
|
int ret = 0;
|
|
int f = 0;
|
|
|
|
if (data != NULL || digest != NULL) {
|
|
if ((ctx = TS_VERIFY_CTX_new()) == NULL)
|
|
goto err;
|
|
f = TS_VFY_VERSION | TS_VFY_SIGNER;
|
|
if (data != NULL) {
|
|
f |= TS_VFY_DATA;
|
|
if (TS_VERIFY_CTX_set_data(ctx, BIO_new_file(data, "rb")) == NULL)
|
|
goto err;
|
|
} else if (digest != NULL) {
|
|
long imprint_len;
|
|
unsigned char *hexstr = string_to_hex(digest, &imprint_len);
|
|
f |= TS_VFY_IMPRINT;
|
|
if (TS_VERIFY_CTX_set_imprint(ctx, hexstr, imprint_len) == NULL) {
|
|
BIO_printf(bio_err, "invalid digest string\n");
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
} else if (queryfile != NULL) {
|
|
if ((input = BIO_new_file(queryfile, "rb")) == NULL)
|
|
goto err;
|
|
if ((request = d2i_TS_REQ_bio(input, NULL)) == NULL)
|
|
goto err;
|
|
if ((ctx = TS_REQ_to_TS_VERIFY_CTX(request, NULL)) == NULL)
|
|
goto err;
|
|
} else
|
|
return NULL;
|
|
|
|
/* Add the signature verification flag and arguments. */
|
|
TS_VERIFY_CTX_add_flags(ctx, f | TS_VFY_SIGNATURE);
|
|
|
|
/* Initialising the X509_STORE object. */
|
|
if (TS_VERIFY_CTX_set_store(ctx, create_cert_store(CApath, CAfile))
|
|
== NULL)
|
|
goto err;
|
|
|
|
/* Loading untrusted certificates. */
|
|
if (untrusted
|
|
&& TS_VERIFY_CTS_set_certs(ctx, TS_CONF_load_certs(untrusted)) == NULL)
|
|
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 *CApath, char *CAfile)
|
|
{
|
|
X509_STORE *cert_ctx = NULL;
|
|
X509_LOOKUP *lookup = NULL;
|
|
int i;
|
|
|
|
cert_ctx = X509_STORE_new();
|
|
X509_STORE_set_verify_cb(cert_ctx, verify_cb);
|
|
if (CApath != NULL) {
|
|
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, CApath, X509_FILETYPE_PEM);
|
|
if (!i) {
|
|
BIO_printf(bio_err, "Error loading directory %s\n", CApath);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
if (CAfile != NULL) {
|
|
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, CAfile, X509_FILETYPE_PEM);
|
|
if (!i) {
|
|
BIO_printf(bio_err, "Error loading file %s\n", CAfile);
|
|
goto err;
|
|
}
|
|
}
|
|
return cert_ctx;
|
|
|
|
err:
|
|
X509_STORE_free(cert_ctx);
|
|
return NULL;
|
|
}
|
|
|
|
static int verify_cb(int ok, X509_STORE_CTX *ctx)
|
|
{
|
|
return ok;
|
|
}
|