fad6cb1a56
The attached patch updates the FSF address in the GPL/LGPL boilerplate in most GPL/LGPLed files, and also in COPYING.LIB. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6162 c046a42c-6fe2-441c-8c8c-71466251a162
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
|
|
* Copyright (C) 2005 Anthony Liguori <anthony@codemonkey.ws>
|
|
*
|
|
* Network Block Device
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; under version 2 of the License.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef NBD_H
|
|
#define NBD_H
|
|
|
|
#include <sys/types.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <qemu-common.h>
|
|
#include "block_int.h"
|
|
|
|
struct nbd_request {
|
|
uint32_t type;
|
|
uint64_t handle;
|
|
uint64_t from;
|
|
uint32_t len;
|
|
};
|
|
|
|
struct nbd_reply {
|
|
uint32_t error;
|
|
uint64_t handle;
|
|
};
|
|
|
|
enum {
|
|
NBD_CMD_READ = 0,
|
|
NBD_CMD_WRITE = 1,
|
|
NBD_CMD_DISC = 2
|
|
};
|
|
|
|
size_t nbd_wr_sync(int fd, void *buffer, size_t size, bool do_read);
|
|
int tcp_socket_outgoing(const char *address, uint16_t port);
|
|
int tcp_socket_incoming(const char *address, uint16_t port);
|
|
int unix_socket_outgoing(const char *path);
|
|
int unix_socket_incoming(const char *path);
|
|
|
|
int nbd_negotiate(int csock, off_t size);
|
|
int nbd_receive_negotiate(int csock, off_t *size, size_t *blocksize);
|
|
int nbd_init(int fd, int csock, off_t size, size_t blocksize);
|
|
int nbd_send_request(int csock, struct nbd_request *request);
|
|
int nbd_receive_reply(int csock, struct nbd_reply *reply);
|
|
int nbd_trip(BlockDriverState *bs, int csock, off_t size, uint64_t dev_offset,
|
|
off_t *offset, bool readonly, uint8_t *data, int data_size);
|
|
int nbd_client(int fd, int csock);
|
|
int nbd_disconnect(int fd);
|
|
|
|
#endif
|