cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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nbd-internal.h (2514B)

      1/*
      2 * NBD Internal Declarations
      3 *
      4 * Copyright (C) 2016 Red Hat, Inc.
      5 *
      6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
      7 * See the COPYING file in the top-level directory.
      8 */
      9
     10#ifndef NBD_INTERNAL_H
     11#define NBD_INTERNAL_H
     12#include "block/nbd.h"
     13#include "sysemu/block-backend.h"
     14#include "io/channel-tls.h"
     15
     16#include "qemu/coroutine.h"
     17#include "qemu/iov.h"
     18
     19#ifndef _WIN32
     20#include <sys/ioctl.h>
     21#endif
     22#ifdef HAVE_SYS_IOCCOM_H
     23#include <sys/ioccom.h>
     24#endif
     25
     26#ifdef __linux__
     27#include <linux/fs.h>
     28#endif
     29
     30#include "qemu/bswap.h"
     31
     32/* This is all part of the "official" NBD API.
     33 *
     34 * The most up-to-date documentation is available at:
     35 * https://github.com/yoe/nbd/blob/master/doc/proto.md
     36 */
     37
     38/* Size of all NBD_OPT_*, without payload */
     39#define NBD_REQUEST_SIZE            (4 + 2 + 2 + 8 + 8 + 4)
     40/* Size of all NBD_REP_* sent in answer to most NBD_OPT_*, without payload */
     41#define NBD_REPLY_SIZE              (4 + 4 + 8)
     42/* Size of reply to NBD_OPT_EXPORT_NAME */
     43#define NBD_REPLY_EXPORT_NAME_SIZE  (8 + 2 + 124)
     44/* Size of oldstyle negotiation */
     45#define NBD_OLDSTYLE_NEGOTIATE_SIZE (8 + 8 + 8 + 4 + 124)
     46
     47#define NBD_INIT_MAGIC              0x4e42444d41474943LL /* ASCII "NBDMAGIC" */
     48#define NBD_REQUEST_MAGIC           0x25609513
     49#define NBD_OPTS_MAGIC              0x49484156454F5054LL /* ASCII "IHAVEOPT" */
     50#define NBD_CLIENT_MAGIC            0x0000420281861253LL
     51#define NBD_REP_MAGIC               0x0003e889045565a9LL
     52
     53#define NBD_SET_SOCK                _IO(0xab, 0)
     54#define NBD_SET_BLKSIZE             _IO(0xab, 1)
     55#define NBD_SET_SIZE                _IO(0xab, 2)
     56#define NBD_DO_IT                   _IO(0xab, 3)
     57#define NBD_CLEAR_SOCK              _IO(0xab, 4)
     58#define NBD_CLEAR_QUE               _IO(0xab, 5)
     59#define NBD_PRINT_DEBUG             _IO(0xab, 6)
     60#define NBD_SET_SIZE_BLOCKS         _IO(0xab, 7)
     61#define NBD_DISCONNECT              _IO(0xab, 8)
     62#define NBD_SET_TIMEOUT             _IO(0xab, 9)
     63#define NBD_SET_FLAGS               _IO(0xab, 10)
     64
     65/* nbd_write
     66 * Writes @size bytes to @ioc. Returns 0 on success.
     67 */
     68static inline int nbd_write(QIOChannel *ioc, const void *buffer, size_t size,
     69                            Error **errp)
     70{
     71    return qio_channel_write_all(ioc, buffer, size, errp) < 0 ? -EIO : 0;
     72}
     73
     74struct NBDTLSHandshakeData {
     75    GMainLoop *loop;
     76    bool complete;
     77    Error *error;
     78};
     79
     80
     81void nbd_tls_handshake(QIOTask *task,
     82                       void *opaque);
     83
     84int nbd_drop(QIOChannel *ioc, size_t size, Error **errp);
     85
     86#endif