hw_ubsec.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/* crypto/engine/hw_ubsec.c */
/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
* project 2000.
*
* Cloned shamelessly by Joe Tardo.
*/
/* ====================================================================
* Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#ifndef OPENSSL_NO_HW
#ifndef OPENSSL_NO_HW_UBSEC
#ifdef FLAT_INC
#include "hw_ubsec.h"
#else
#include "vendor_defns/hw_ubsec.h"
#endif
#define UBSEC_LIB_NAME "ubsec engine"
#include "hw_ubsec_err.c"
#define FAIL_TO_SOFTWARE -15
static int ubsec_destroy(ENGINE *e);
static int ubsec_init(ENGINE *e);
static int ubsec_finish(ENGINE *e);
#ifndef OPENSSL_NO_RSA
#endif
#ifndef OPENSSL_NO_DSA
#ifdef NOT_USED
BN_MONT_CTX *m_ctx);
#endif
#endif
#ifndef OPENSSL_NO_DH
BN_MONT_CTX *m_ctx);
#endif
#ifdef NOT_USED
static int ubsec_rand_status(void);
#endif
#define UBSEC_CMD_SO_PATH ENGINE_CMD_BASE
static const ENGINE_CMD_DEFN ubsec_cmd_defns[] = {
"SO_PATH",
"Specifies the path to the 'ubsec' shared library",
};
#ifndef OPENSSL_NO_RSA
/* Our internal RSA_METHOD that we provide pointers to */
static RSA_METHOD ubsec_rsa =
{
"UBSEC RSA method",
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
0,
NULL,
NULL,
};
#endif
#ifndef OPENSSL_NO_DSA
/* Our internal DSA_METHOD that we provide pointers to */
static DSA_METHOD ubsec_dsa =
{
"UBSEC DSA method",
ubsec_dsa_do_sign, /* dsa_do_sign */
NULL, /* dsa_sign_setup */
ubsec_dsa_verify, /* dsa_do_verify */
NULL, /* init */
NULL, /* finish */
0, /* flags */
NULL /* app_data */
};
#endif
#ifndef OPENSSL_NO_DH
/* Our internal DH_METHOD that we provide pointers to */
{
"UBSEC DH method",
NULL,
NULL,
0,
};
#endif
/* Constants used when creating the ENGINE */
static const char *engine_ubsec_id = "ubsec";
static const char *engine_ubsec_name = "UBSEC hardware engine support";
/* This internal function is used by ENGINE_ubsec() and possibly by the
* "dynamic" ENGINE support too */
static int bind_helper(ENGINE *e)
{
#ifndef OPENSSL_NO_RSA
const RSA_METHOD *meth1;
#endif
#ifndef OPENSSL_NO_DH
#ifndef HAVE_UBSEC_DH
#endif /* HAVE_UBSEC_DH */
#endif
if(!ENGINE_set_id(e, engine_ubsec_id) ||
!ENGINE_set_name(e, engine_ubsec_name) ||
#ifndef OPENSSL_NO_RSA
!ENGINE_set_RSA(e, &ubsec_rsa) ||
#endif
#ifndef OPENSSL_NO_DSA
!ENGINE_set_DSA(e, &ubsec_dsa) ||
#endif
#ifndef OPENSSL_NO_DH
!ENGINE_set_DH(e, &ubsec_dh) ||
#endif
!ENGINE_set_init_function(e, ubsec_init) ||
!ENGINE_set_ctrl_function(e, ubsec_ctrl) ||
return 0;
#ifndef OPENSSL_NO_RSA
/* We know that the "PKCS1_SSLeay()" functions hook properly
* to the Broadcom-specific mod_exp and mod_exp_crt so we use
* those functions. NB: We don't use ENGINE_openssl() or
* anything "more generic" because something like the RSAref
* code may not hook properly, and if you own one of these
* cards then you have the right to do RSA operations on it
* anyway! */
meth1 = RSA_PKCS1_SSLeay();
#endif
#ifndef OPENSSL_NO_DH
#ifndef HAVE_UBSEC_DH
/* Much the same for Diffie-Hellman */
meth3 = DH_OpenSSL();
#endif /* HAVE_UBSEC_DH */
#endif
/* Ensure the ubsec error handling is set up */
return 1;
}
#ifndef ENGINE_DYNAMIC_SUPPORT
static ENGINE *engine_ubsec(void)
{
if(!ret)
return NULL;
if(!bind_helper(ret))
{
return NULL;
}
return ret;
}
void ENGINE_load_ubsec(void)
{
/* Copied from eng_[openssl|dyn].c */
if(!toadd) return;
}
#endif
/* This is a process-global DSO handle used for loading and unloading
* the UBSEC library. NB: This is only set (or unset) during an
* init() or finish() call (reference counts permitting) and they're
* operating with global locks, so this should be thread-safe
* implicitly. */
/* These are the function pointers that are (un)set when the library has
* successfully (un)loaded. */
#ifndef OPENSSL_NO_DH
#endif
/* #ifndef OPENSSL_NO_RSA */
/* #endif */
#ifndef OPENSSL_NO_DSA
#endif
/*
* These are the static string constants for the DSO file name and the function
* symbol names to bind to.
*/
static const char *UBSEC_LIBNAME = NULL;
static const char *get_UBSEC_LIBNAME(void)
{
if(UBSEC_LIBNAME)
return UBSEC_LIBNAME;
return "ubsec";
}
static void free_UBSEC_LIBNAME(void)
{
if(UBSEC_LIBNAME)
OPENSSL_free((void*)UBSEC_LIBNAME);
}
static long set_UBSEC_LIBNAME(const char *name)
{
}
static const char *UBSEC_F1 = "ubsec_bytes_to_bits";
static const char *UBSEC_F2 = "ubsec_bits_to_bytes";
static const char *UBSEC_F3 = "ubsec_open";
static const char *UBSEC_F4 = "ubsec_close";
#ifndef OPENSSL_NO_DH
static const char *UBSEC_F5 = "diffie_hellman_generate_ioctl";
static const char *UBSEC_F6 = "diffie_hellman_agree_ioctl";
#endif
/* #ifndef OPENSSL_NO_RSA */
static const char *UBSEC_F7 = "rsa_mod_exp_ioctl";
static const char *UBSEC_F8 = "rsa_mod_exp_crt_ioctl";
/* #endif */
#ifndef OPENSSL_NO_DSA
static const char *UBSEC_F9 = "dsa_sign_ioctl";
static const char *UBSEC_F10 = "dsa_verify_ioctl";
#endif
static const char *UBSEC_F11 = "math_accelerate_ioctl";
static const char *UBSEC_F12 = "rng_ioctl";
static const char *UBSEC_F13 = "ubsec_max_key_len_ioctl";
/* Destructor (complements the "ENGINE_ubsec()" constructor) */
static int ubsec_destroy(ENGINE *e)
{
return 1;
}
/* (de)initialisation functions. */
static int ubsec_init(ENGINE *e)
{
#ifndef OPENSSL_NO_DH
#endif
/* #ifndef OPENSSL_NO_RSA */
/* #endif */
#ifndef OPENSSL_NO_DSA
#endif
int fd = 0;
{
goto err;
}
/*
* Attempt to load libubsec.so/ubsec.dll/whatever.
*/
{
goto err;
}
if (
#ifndef OPENSSL_NO_DH
!(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
#endif
/* #ifndef OPENSSL_NO_RSA */
/* #endif */
#ifndef OPENSSL_NO_DSA
#endif
!(p11 = (t_UBSEC_math_accelerate_ioctl *)
{
goto err;
}
/* Copy the pointers */
#ifndef OPENSSL_NO_DH
#endif
#ifndef OPENSSL_NO_RSA
#endif
#ifndef OPENSSL_NO_DSA
#endif
/* Perform an open to see if there's actually any unit running. */
if (((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0) && (p_UBSEC_max_key_len_ioctl(fd, &max_key_len) == 0))
{
return 1;
}
else
{
}
err:
if(ubsec_dso)
#ifndef OPENSSL_NO_DH
#endif
#ifndef OPENSSL_NO_RSA
#endif
#ifndef OPENSSL_NO_DSA
#endif
return 0;
}
static int ubsec_finish(ENGINE *e)
{
{
return 0;
}
{
return 0;
}
#ifndef OPENSSL_NO_DH
#endif
#ifndef OPENSSL_NO_RSA
#endif
#ifndef OPENSSL_NO_DSA
#endif
return 1;
}
{
switch(cmd)
{
case UBSEC_CMD_SO_PATH:
if(p == NULL)
{
return 0;
}
if(initialised)
{
return 0;
}
return set_UBSEC_LIBNAME((const char *)p);
default:
break;
}
return 0;
}
{
int y_len = 0;
int fd;
{
return 0;
}
/* Check if hardware can't handle this argument. */
y_len = BN_num_bits(m);
if (y_len > max_key_len) {
return BN_mod_exp(r, a, p, m, ctx);
}
if(!bn_wexpand(r, m->top))
{
return 0;
}
fd = 0;
return BN_mod_exp(r, a, p, m, ctx);
}
(unsigned char *)m->d, BN_num_bits(m), (unsigned char *)p->d,
BN_num_bits(p), (unsigned char *)r->d, &y_len) != 0)
{
return BN_mod_exp(r, a, p, m, ctx);
}
return 1;
}
#ifndef OPENSSL_NO_RSA
{
int to_return = 0;
goto err;
{
goto err;
}
if (to_return == FAIL_TO_SOFTWARE)
{
/*
* Do in software as hardware failed.
*/
}
err:
if(ctx)
return to_return;
}
#endif
{
int y_len,
fd;
/* Check if hardware can't handle this argument. */
if (y_len > max_key_len) {
return FAIL_TO_SOFTWARE;
}
return 0;
}
fd = 0;
return FAIL_TO_SOFTWARE;
}
(unsigned char *)a->d, BN_num_bits(a),
(unsigned char *)p->d, BN_num_bits(p),
(unsigned char *)q->d, BN_num_bits(q),
(unsigned char *)r->d, &y_len) != 0) {
return FAIL_TO_SOFTWARE;
}
return 1;
}
#ifndef OPENSSL_NO_DSA
#ifdef NOT_USED
{
BIGNUM t;
int to_return = 0;
BN_init(&t);
/* let rr = a1 ^ p1 mod m */
/* let t = a2 ^ p2 mod m */
/* let rr = rr * t mod m */
to_return = 1;
end:
BN_free(&t);
return to_return;
}
{
return ubsec_mod_exp(r, a, p, m, ctx);
}
#endif
#endif
/*
* This function is aliased to mod_exp (with the mont stuff dropped).
*/
{
int ret = 0;
#ifndef OPENSSL_NO_RSA
/* Do in software if the key is too large for the hardware. */
if (BN_num_bits(m) > max_key_len)
{
}
else
#endif
{
}
return ret;
}
#ifndef OPENSSL_NO_DH
/* This function is aliased to mod_exp (with the dh and mont dropped). */
{
return ubsec_mod_exp(r, a, p, m, ctx);
}
#endif
#ifndef OPENSSL_NO_DSA
{
BN_init(&m);
s = BN_new();
r = BN_new();
goto err;
goto err;
}
goto err;
}
const DSA_METHOD *meth;
fd = 0;
meth = DSA_OpenSSL();
goto err;
}
NULL, 0, /* compute random value */
(unsigned char *)r->d, &r_len,
(unsigned char *)s->d, &s_len ) != 0) {
const DSA_METHOD *meth;
meth = DSA_OpenSSL();
goto err;
}
to_return = DSA_SIG_new();
goto err;
}
to_return->r = r;
to_return->s = s;
err:
if (!to_return) {
if (r) BN_free(r);
if (s) BN_free(s);
}
BN_clear_free(&m);
return to_return;
}
{
int to_return = 0;
int fd;
BIGNUM v;
BN_init(&v);
goto err;
}
const DSA_METHOD *meth;
fd = 0;
meth = DSA_OpenSSL();
goto err;
}
(unsigned char *)v.d, &v_len) != 0) {
const DSA_METHOD *meth;
meth = DSA_OpenSSL();
goto err;
}
to_return = 1;
err:
BN_clear_free(&v);
return to_return;
}
#endif
#ifndef OPENSSL_NO_DH
{
int ret = -1,
fd;
{
meth = DH_OpenSSL();
goto err;
}
{
/* Hardware's a no go, failover to software */
meth = DH_OpenSSL();
goto err;
}
err:
return ret;
}
{
int ret = 0,
random_bits = 0,
pub_key_len = 0,
priv_key_len = 0,
fd;
/*
* How many bits should Random x be? dh_key.c
* sets the range from 0 to num_bits(modulus) ???
*/
{
do
while (BN_is_zero(priv_key));
}
else
{
}
{
}
else
{
}
{
meth = DH_OpenSSL();
goto err;
}
(unsigned char *)priv_key->d, &priv_key_len,
(unsigned char *)pub_key->d, &pub_key_len,
0, 0, random_bits) != 0)
{
/* Hardware's a no go, failover to software */
meth = DH_OpenSSL();
goto err;
}
ret = 1;
err:
return ret;
}
#endif
#ifdef NOT_USED
static int ubsec_rand_bytes(unsigned char * buf,
int num)
{
int ret = 0,
fd;
{
const RAND_METHOD *meth;
meth = RAND_SSLeay();
goto err;
}
if (p_UBSEC_rng_ioctl(fd,
buf,
&num) != 0)
{
/* Hardware's a no go, failover to software */
const RAND_METHOD *meth;
meth = RAND_SSLeay();
goto err;
}
ret = 1;
err:
return(ret);
}
static int ubsec_rand_status(void)
{
return 0;
}
#endif
/* This stuff is needed if this ENGINE is being compiled into a self-contained
* shared-library. */
#ifdef ENGINE_DYNAMIC_SUPPORT
{
return 0;
if(!bind_helper(e))
return 0;
return 1;
}
#endif /* ENGINE_DYNAMIC_SUPPORT */
#endif /* !OPENSSL_NO_HW_UBSEC */
#endif /* !OPENSSL_NO_HW */