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/*
* QEMU Crypto af_alg support
*
* Copyright (c) 2017 HUAWEI TECHNOLOGIES CO., LTD.
*
* Authors:
* Longpeng(Mike) <longpeng2@huawei.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* (at your option) any later version. See the COPYING file in the
* top-level directory.
*/
#ifndef QCRYPTO_AFALGPRIV_H
#define QCRYPTO_AFALGPRIV_H
#include <linux/if_alg.h>
#include "crypto/cipher.h"
#define SALG_TYPE_LEN_MAX 14
#define SALG_NAME_LEN_MAX 64
#ifndef SOL_ALG
#define SOL_ALG 279
#endif
#define AFALG_TYPE_CIPHER "skcipher"
#define AFALG_TYPE_HASH "hash"
#define ALG_OPTYPE_LEN 4
#define ALG_MSGIV_LEN(len) (sizeof(struct af_alg_iv) + (len))
typedef struct QCryptoAFAlg QCryptoAFAlg;
struct QCryptoAFAlg {
QCryptoCipher base;
int tfmfd;
int opfd;
struct msghdr *msg;
struct cmsghdr *cmsg;
};
/**
* qcrypto_afalg_comm_alloc:
* @type: the type of crypto operation
* @name: the name of crypto operation
*
* Allocate a QCryptoAFAlg object and bind itself to
* a AF_ALG socket.
*
* Returns:
* a new QCryptoAFAlg object, or NULL in error.
*/
QCryptoAFAlg *
qcrypto_afalg_comm_alloc(const char *type, const char *name,
Error **errp);
/**
* afalg_comm_free:
* @afalg: the QCryptoAFAlg object
*
* Free the @afalg.
*/
void qcrypto_afalg_comm_free(QCryptoAFAlg *afalg);
#endif
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