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/*
* 1999 Copyright (C) Pavel Machek, pavel@ucw.cz. This code is GPL.
* 1999/11/04 Copyright (C) 1999 VMware, Inc. (Regis "HPReg" Duchesne)
* Made nbd_end_request() use the io_request_lock
* 2001 Copyright (C) Steven Whitehouse
* New nbd_end_request() for compatibility with new linux block
* layer code.
*/
#ifndef LINUX_NBD_H
#define LINUX_NBD_H
#define NBD_SET_SOCK _IO( 0xab, 0 )
#define NBD_SET_BLKSIZE _IO( 0xab, 1 )
#define NBD_SET_SIZE _IO( 0xab, 2 )
#define NBD_DO_IT _IO( 0xab, 3 )
#define NBD_CLEAR_SOCK _IO( 0xab, 4 )
#define NBD_CLEAR_QUE _IO( 0xab, 5 )
#define NBD_PRINT_DEBUG _IO( 0xab, 6 )
#define NBD_SET_SIZE_BLOCKS _IO( 0xab, 7 )
#define NBD_DISCONNECT _IO( 0xab, 8 )
#ifdef MAJOR_NR
#define LOCAL_END_REQUEST
#include <linux/blk.h>
#define MAX_NBD 128
#endif
/* This now IS in some kind of include file... */
/* These are send over network in request/reply magic field */
#define NBD_REQUEST_MAGIC 0x25609513
#define NBD_REPLY_MAGIC 0x67446698
/* Do *not* use magics: 0x12560953 0x96744668. */
/*
* This is packet used for communication between client and
* server. All data are in network byte order.
*/
struct nbd_request {
u32 magic;
u32 type; /* == READ || == WRITE */
char handle[8];
u64 from;
u32 len;
}
__attribute__ ((packed))
;
struct nbd_reply {
u32 magic;
u32 error; /* 0 = ok, else error */
char handle[8]; /* handle you got from request */
};
#endif
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