libc/kernel/uapi/linux/nbd.h

/****************************************************************************
 ****************************************************************************
 ***
 ***   This header was automatically generated from a Linux kernel header
 ***   of the same name, to make information necessary for userspace to
 ***   call into the kernel available to libc.  It contains only constants,
 ***   structures, and macros generated from the original header, and thus,
 ***   contains no copyrightable information.
 ***
 ***   To edit the content of this header, modify the corresponding
 ***   source file (e.g. under external/kernel-headers/original/) then
 ***   run bionic/libc/kernel/tools/update_all.py
 ***
 ***   Any manual change here will be lost the next time this script will
 ***   be run. You've been warned!
 ***
 ****************************************************************************
 ****************************************************************************/
#ifndef _UAPILINUX_NBD_H
#define _UAPILINUX_NBD_H
#include <linux/types.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)
#define NBD_SET_TIMEOUT _IO(0xab, 9)
#define NBD_SET_FLAGS _IO(0xab, 10)
enum {
  NBD_CMD_READ = 0,
  NBD_CMD_WRITE = 1,
  NBD_CMD_DISC = 2,
  NBD_CMD_FLUSH = 3,
  NBD_CMD_TRIM = 4
};
#define NBD_FLAG_HAS_FLAGS (1 << 0)
#define NBD_FLAG_READ_ONLY (1 << 1)
#define NBD_FLAG_SEND_FLUSH (1 << 2)
#define NBD_FLAG_SEND_FUA (1 << 3)
#define NBD_FLAG_SEND_TRIM (1 << 5)
#define NBD_FLAG_CAN_MULTI_CONN (1 << 8)
#define NBD_CMD_FLAG_FUA (1 << 16)
#define NBD_CFLAG_DESTROY_ON_DISCONNECT (1 << 0)
#define NBD_REQUEST_MAGIC 0x25609513
#define NBD_REPLY_MAGIC 0x67446698
struct nbd_request {
  __be32 magic;
  __be32 type;
  char handle[8];
  __be64 from;
  __be32 len;
} __attribute__((packed));
struct nbd_reply {
  __be32 magic;
  __be32 error;
  char handle[8];
};
#endif