mirror of
https://github.com/xemu-project/xemu.git
synced 2024-12-24 21:05:19 +00:00
b7cbb8741b
It's either "GNU *Library* General Public License version 2" or "GNU Lesser General Public License version *2.1*", but there was no "version 2.0" of the "Lesser" license. So assume that version 2.1 is meant here. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/*
|
|
* QEMU Crypto block IV generator
|
|
*
|
|
* Copyright (c) 2015-2016 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qapi/error.h"
|
|
|
|
#include "ivgenpriv.h"
|
|
#include "ivgen-plain.h"
|
|
#include "ivgen-plain64.h"
|
|
#include "ivgen-essiv.h"
|
|
|
|
|
|
QCryptoIVGen *qcrypto_ivgen_new(QCryptoIVGenAlgorithm alg,
|
|
QCryptoCipherAlgorithm cipheralg,
|
|
QCryptoHashAlgorithm hash,
|
|
const uint8_t *key, size_t nkey,
|
|
Error **errp)
|
|
{
|
|
QCryptoIVGen *ivgen = g_new0(QCryptoIVGen, 1);
|
|
|
|
ivgen->algorithm = alg;
|
|
ivgen->cipher = cipheralg;
|
|
ivgen->hash = hash;
|
|
|
|
switch (alg) {
|
|
case QCRYPTO_IVGEN_ALG_PLAIN:
|
|
ivgen->driver = &qcrypto_ivgen_plain;
|
|
break;
|
|
case QCRYPTO_IVGEN_ALG_PLAIN64:
|
|
ivgen->driver = &qcrypto_ivgen_plain64;
|
|
break;
|
|
case QCRYPTO_IVGEN_ALG_ESSIV:
|
|
ivgen->driver = &qcrypto_ivgen_essiv;
|
|
break;
|
|
default:
|
|
error_setg(errp, "Unknown block IV generator algorithm %d", alg);
|
|
g_free(ivgen);
|
|
return NULL;
|
|
}
|
|
|
|
if (ivgen->driver->init(ivgen, key, nkey, errp) < 0) {
|
|
g_free(ivgen);
|
|
return NULL;
|
|
}
|
|
|
|
return ivgen;
|
|
}
|
|
|
|
|
|
int qcrypto_ivgen_calculate(QCryptoIVGen *ivgen,
|
|
uint64_t sector,
|
|
uint8_t *iv, size_t niv,
|
|
Error **errp)
|
|
{
|
|
return ivgen->driver->calculate(ivgen, sector, iv, niv, errp);
|
|
}
|
|
|
|
|
|
QCryptoIVGenAlgorithm qcrypto_ivgen_get_algorithm(QCryptoIVGen *ivgen)
|
|
{
|
|
return ivgen->algorithm;
|
|
}
|
|
|
|
|
|
QCryptoCipherAlgorithm qcrypto_ivgen_get_cipher(QCryptoIVGen *ivgen)
|
|
{
|
|
return ivgen->cipher;
|
|
}
|
|
|
|
|
|
QCryptoHashAlgorithm qcrypto_ivgen_get_hash(QCryptoIVGen *ivgen)
|
|
{
|
|
return ivgen->hash;
|
|
}
|
|
|
|
|
|
void qcrypto_ivgen_free(QCryptoIVGen *ivgen)
|
|
{
|
|
if (!ivgen) {
|
|
return;
|
|
}
|
|
ivgen->driver->cleanup(ivgen);
|
|
g_free(ivgen);
|
|
}
|