#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/rsa.h>
#include "evp_locl.h"
static void *dummy=&dummy;
#if 0
#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>
#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)
{
unsigned int cinl=0;
char *cin=NULL;
char *cout=NULL;
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,
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;
}
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
};
if(!len)
{
memcpy(md,md5zero,16);
return 1;
}
memset(&cryp,'\0',sizeof cryp);
cryp.ses=ses;
cryp.op=COP_ENCRYPT;
cryp.len=len;
cryp.src=(caddr_t)data;
cryp.dst=(caddr_t)data; cryp.mac=(caddr_t)md;
if(ioctl(fd, CIOCCRYPT, &cryp) == -1)
{
if(errno == EINVAL)
{
char *dcopy;
dcopy=OPENSSL_malloc(len);
memcpy(dcopy,data,len);
cryp.src=dcopy;
cryp.dst=cryp.src;
if(ioctl(fd, CIOCCRYPT, &cryp) == -1)
{
err("CIOCCRYPT(MAC2) failed");
abort();
return 0;
}
OPENSSL_free(dcopy);
}
else
{
err("CIOCCRYPT(MAC) failed");
abort();
return 0;
}
}
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;
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, 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