mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-11 14:28:08 +01:00
447 lines
10 KiB
C
447 lines
10 KiB
C
/* Written by Ben Laurie, 2001 */
|
|
/*
|
|
* Copyright (c) 2001 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* openssl-core@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.
|
|
*/
|
|
|
|
#include <openssl/evp.h>
|
|
#include <openssl/objects.h>
|
|
#include <openssl/rsa.h>
|
|
#include "evp_locl.h"
|
|
|
|
/* This stuff should now all be supported through
|
|
* crypto/engine/hw_openbsd_dev_crypto.c unless I botched it up */
|
|
static void *dummy=&dummy;
|
|
|
|
#if 0
|
|
|
|
/* check flag after OpenSSL headers to ensure make depend works */
|
|
#ifdef OPENSSL_OPENBSD_DEV_CRYPTO
|
|
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <sys/ioctl.h>
|
|
#include <crypto/cryptodev.h>
|
|
#include <unistd.h>
|
|
#include <assert.h>
|
|
|
|
/* longest key supported in hardware */
|
|
#define MAX_HW_KEY 24
|
|
#define MAX_HW_IV 8
|
|
|
|
#define MD5_DIGEST_LENGTH 16
|
|
#define MD5_CBLOCK 64
|
|
|
|
static int fd;
|
|
static int dev_failed;
|
|
|
|
typedef struct session_op session_op;
|
|
|
|
#define CDATA(ctx) EVP_C_DATA(session_op,ctx)
|
|
|
|
static void err(const char *str)
|
|
{
|
|
fprintf(stderr,"%s: errno %d\n",str,errno);
|
|
}
|
|
|
|
static int dev_crypto_init(session_op *ses)
|
|
{
|
|
if(dev_failed)
|
|
return 0;
|
|
if(!fd)
|
|
{
|
|
int cryptodev_fd;
|
|
|
|
if ((cryptodev_fd=open("/dev/crypto",O_RDWR,0)) < 0)
|
|
{
|
|
err("/dev/crypto");
|
|
dev_failed=1;
|
|
return 0;
|
|
}
|
|
if (ioctl(cryptodev_fd,CRIOGET,&fd) == -1)
|
|
{
|
|
err("CRIOGET failed");
|
|
close(cryptodev_fd);
|
|
dev_failed=1;
|
|
return 0;
|
|
}
|
|
close(cryptodev_fd);
|
|
}
|
|
assert(ses);
|
|
memset(ses,'\0',sizeof *ses);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dev_crypto_cleanup(EVP_CIPHER_CTX *ctx)
|
|
{
|
|
if(ioctl(fd,CIOCFSESSION,&CDATA(ctx)->ses) == -1)
|
|
err("CIOCFSESSION failed");
|
|
|
|
OPENSSL_free(CDATA(ctx)->key);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dev_crypto_init_key(EVP_CIPHER_CTX *ctx,int cipher,
|
|
const unsigned char *key,int klen)
|
|
{
|
|
if(!dev_crypto_init(CDATA(ctx)))
|
|
return 0;
|
|
|
|
CDATA(ctx)->key=OPENSSL_malloc(MAX_HW_KEY);
|
|
|
|
assert(ctx->cipher->iv_len <= MAX_HW_IV);
|
|
|
|
memcpy(CDATA(ctx)->key,key,klen);
|
|
|
|
CDATA(ctx)->cipher=cipher;
|
|
CDATA(ctx)->keylen=klen;
|
|
|
|
if (ioctl(fd,CIOCGSESSION,CDATA(ctx)) == -1)
|
|
{
|
|
err("CIOCGSESSION failed");
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int dev_crypto_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
|
|
const unsigned char *in,unsigned int inl)
|
|
{
|
|
struct crypt_op cryp;
|
|
unsigned char lb[MAX_HW_IV];
|
|
|
|
if(!inl)
|
|
return 1;
|
|
|
|
assert(CDATA(ctx));
|
|
assert(!dev_failed);
|
|
|
|
memset(&cryp,'\0',sizeof cryp);
|
|
cryp.ses=CDATA(ctx)->ses;
|
|
cryp.op=ctx->encrypt ? COP_ENCRYPT : COP_DECRYPT;
|
|
cryp.flags=0;
|
|
cryp.len=inl;
|
|
assert((inl&(ctx->cipher->block_size-1)) == 0);
|
|
cryp.src=(caddr_t)in;
|
|
cryp.dst=(caddr_t)out;
|
|
cryp.mac=0;
|
|
if(ctx->cipher->iv_len)
|
|
cryp.iv=(caddr_t)ctx->iv;
|
|
|
|
if(!ctx->encrypt)
|
|
memcpy(lb,&in[cryp.len-ctx->cipher->iv_len],ctx->cipher->iv_len);
|
|
|
|
if(ioctl(fd, CIOCCRYPT, &cryp) == -1)
|
|
{
|
|
if(errno == EINVAL) /* buffers are misaligned */
|
|
{
|
|
unsigned int cinl=0;
|
|
char *cin=NULL;
|
|
char *cout=NULL;
|
|
|
|
/* NB: this can only make cinl != inl with stream ciphers */
|
|
cinl=(inl+3)/4*4;
|
|
|
|
if(((unsigned long)in&3) || cinl != inl)
|
|
{
|
|
cin=OPENSSL_malloc(cinl);
|
|
memcpy(cin,in,inl);
|
|
cryp.src=cin;
|
|
}
|
|
|
|
if(((unsigned long)out&3) || cinl != inl)
|
|
{
|
|
cout=OPENSSL_malloc(cinl);
|
|
cryp.dst=cout;
|
|
}
|
|
|
|
cryp.len=cinl;
|
|
|
|
if(ioctl(fd, CIOCCRYPT, &cryp) == -1)
|
|
{
|
|
err("CIOCCRYPT(2) failed");
|
|
printf("src=%p dst=%p\n",cryp.src,cryp.dst);
|
|
abort();
|
|
return 0;
|
|
}
|
|
|
|
if(cout)
|
|
{
|
|
memcpy(out,cout,inl);
|
|
OPENSSL_free(cout);
|
|
}
|
|
if(cin)
|
|
OPENSSL_free(cin);
|
|
}
|
|
else
|
|
{
|
|
err("CIOCCRYPT failed");
|
|
abort();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if(ctx->encrypt)
|
|
memcpy(ctx->iv,&out[cryp.len-ctx->cipher->iv_len],ctx->cipher->iv_len);
|
|
else
|
|
memcpy(ctx->iv,lb,ctx->cipher->iv_len);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dev_crypto_des_ede3_init_key(EVP_CIPHER_CTX *ctx,
|
|
const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{ return dev_crypto_init_key(ctx,CRYPTO_3DES_CBC,key,24); }
|
|
|
|
#define dev_crypto_des_ede3_cbc_cipher dev_crypto_cipher
|
|
|
|
BLOCK_CIPHER_def_cbc(dev_crypto_des_ede3, session_op, NID_des_ede3, 8, 24, 8,
|
|
0, dev_crypto_des_ede3_init_key,
|
|
dev_crypto_cleanup,
|
|
EVP_CIPHER_set_asn1_iv,
|
|
EVP_CIPHER_get_asn1_iv,
|
|
NULL)
|
|
|
|
static int dev_crypto_rc4_init_key(EVP_CIPHER_CTX *ctx,
|
|
const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{ return dev_crypto_init_key(ctx,CRYPTO_ARC4,key,16); }
|
|
|
|
static const EVP_CIPHER r4_cipher=
|
|
{
|
|
NID_rc4,
|
|
1,16,0, /* FIXME: key should be up to 256 bytes */
|
|
EVP_CIPH_VARIABLE_LENGTH,
|
|
dev_crypto_rc4_init_key,
|
|
dev_crypto_cipher,
|
|
dev_crypto_cleanup,
|
|
sizeof(session_op),
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
const EVP_CIPHER *EVP_dev_crypto_rc4(void)
|
|
{ return &r4_cipher; }
|
|
|
|
typedef struct
|
|
{
|
|
session_op sess;
|
|
char *data;
|
|
int len;
|
|
unsigned char md[EVP_MAX_MD_SIZE];
|
|
} MD_DATA;
|
|
|
|
static int dev_crypto_init_digest(MD_DATA *md_data,int mac)
|
|
{
|
|
if(!dev_crypto_init(&md_data->sess))
|
|
return 0;
|
|
|
|
md_data->len=0;
|
|
md_data->data=NULL;
|
|
|
|
md_data->sess.mac=mac;
|
|
|
|
if (ioctl(fd,CIOCGSESSION,&md_data->sess) == -1)
|
|
{
|
|
err("CIOCGSESSION failed");
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int dev_crypto_cleanup_digest(MD_DATA *md_data)
|
|
{
|
|
if (ioctl(fd,CIOCFSESSION,&md_data->sess.ses) == -1)
|
|
{
|
|
err("CIOCFSESSION failed");
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* FIXME: if device can do chained MACs, then don't accumulate */
|
|
/* FIXME: move accumulation to the framework */
|
|
static int dev_crypto_md5_init(EVP_MD_CTX *ctx)
|
|
{ return dev_crypto_init_digest(ctx->md_data,CRYPTO_MD5); }
|
|
|
|
static int do_digest(int ses,unsigned char *md,const void *data,int len)
|
|
{
|
|
struct crypt_op cryp;
|
|
static unsigned char md5zero[16]=
|
|
{
|
|
0xd4,0x1d,0x8c,0xd9,0x8f,0x00,0xb2,0x04,
|
|
0xe9,0x80,0x09,0x98,0xec,0xf8,0x42,0x7e
|
|
};
|
|
|
|
/* some cards can't do zero length */
|
|
if(!len)
|
|
{
|
|
memcpy(md,md5zero,16);
|
|
return 1;
|
|
}
|
|
|
|
memset(&cryp,'\0',sizeof cryp);
|
|
cryp.ses=ses;
|
|
cryp.op=COP_ENCRYPT;/* required to do the MAC rather than check it */
|
|
cryp.len=len;
|
|
cryp.src=(caddr_t)data;
|
|
cryp.dst=(caddr_t)data; // FIXME!!!
|
|
cryp.mac=(caddr_t)md;
|
|
|
|
if(ioctl(fd, CIOCCRYPT, &cryp) == -1)
|
|
{
|
|
if(errno == EINVAL) /* buffer is misaligned */
|
|
{
|
|
char *dcopy;
|
|
|
|
dcopy=OPENSSL_malloc(len);
|
|
memcpy(dcopy,data,len);
|
|
cryp.src=dcopy;
|
|
cryp.dst=cryp.src; // FIXME!!!
|
|
|
|
if(ioctl(fd, CIOCCRYPT, &cryp) == -1)
|
|
{
|
|
err("CIOCCRYPT(MAC2) failed");
|
|
abort();
|
|
return 0;
|
|
}
|
|
OPENSSL_free(dcopy);
|
|
}
|
|
else
|
|
{
|
|
err("CIOCCRYPT(MAC) failed");
|
|
abort();
|
|
return 0;
|
|
}
|
|
}
|
|
// printf("done\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dev_crypto_md5_update(EVP_MD_CTX *ctx,const void *data,
|
|
unsigned long len)
|
|
{
|
|
MD_DATA *md_data=ctx->md_data;
|
|
|
|
if(ctx->flags&EVP_MD_CTX_FLAG_ONESHOT)
|
|
return do_digest(md_data->sess.ses,md_data->md,data,len);
|
|
|
|
md_data->data=OPENSSL_realloc(md_data->data,md_data->len+len);
|
|
memcpy(md_data->data+md_data->len,data,len);
|
|
md_data->len+=len;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dev_crypto_md5_final(EVP_MD_CTX *ctx,unsigned char *md)
|
|
{
|
|
int ret;
|
|
MD_DATA *md_data=ctx->md_data;
|
|
|
|
if(ctx->flags&EVP_MD_CTX_FLAG_ONESHOT)
|
|
{
|
|
memcpy(md,md_data->md,MD5_DIGEST_LENGTH);
|
|
ret=1;
|
|
}
|
|
else
|
|
{
|
|
ret=do_digest(md_data->sess.ses,md,md_data->data,md_data->len);
|
|
OPENSSL_free(md_data->data);
|
|
md_data->data=NULL;
|
|
md_data->len=0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int dev_crypto_md5_copy(EVP_MD_CTX *to,const EVP_MD_CTX *from)
|
|
{
|
|
const MD_DATA *from_md=from->md_data;
|
|
MD_DATA *to_md=to->md_data;
|
|
|
|
// How do we copy sessions?
|
|
assert(from->digest->flags&EVP_MD_FLAG_ONESHOT);
|
|
|
|
to_md->data=OPENSSL_malloc(from_md->len);
|
|
memcpy(to_md->data,from_md->data,from_md->len);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dev_crypto_md5_cleanup(EVP_MD_CTX *ctx)
|
|
{
|
|
return dev_crypto_cleanup_digest(ctx->md_data);
|
|
}
|
|
|
|
static const EVP_MD md5_md=
|
|
{
|
|
NID_md5,
|
|
NID_md5WithRSAEncryption,
|
|
MD5_DIGEST_LENGTH,
|
|
EVP_MD_FLAG_ONESHOT, // XXX: set according to device info...
|
|
dev_crypto_md5_init,
|
|
dev_crypto_md5_update,
|
|
dev_crypto_md5_final,
|
|
dev_crypto_md5_copy,
|
|
dev_crypto_md5_cleanup,
|
|
EVP_PKEY_RSA_method,
|
|
MD5_CBLOCK,
|
|
sizeof(MD_DATA),
|
|
};
|
|
|
|
const EVP_MD *EVP_dev_crypto_md5(void)
|
|
{ return &md5_md; }
|
|
|
|
#endif
|
|
#endif
|