LXR linux-bk/include/linux/auto

   1/* -*- c -*-
   2 * linux/include/linux/auto_fs4.h
   3 *
   4 * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
   5 *
   6 * This file is part of the Linux kernel and is made available under
   7 * the terms of the GNU General Public License, version 2, or at your
   8 * option, any later version, incorporated herein by reference.
   9 */
  10
  11#ifndef _LINUX_AUTO_FS4_H
  12#define _LINUX_AUTO_FS4_H
  13
  14/* Include common v3 definitions */
  15#include <linux/auto_fs.h>
  16
  17/* autofs v4 definitions */
  18#undef AUTOFS_PROTO_VERSION
  19#undef AUTOFS_MIN_PROTO_VERSION
  20#undef AUTOFS_MAX_PROTO_VERSION
  21
  22#define AUTOFS_PROTO_VERSION            4
  23#define AUTOFS_MIN_PROTO_VERSION        3
  24#define AUTOFS_MAX_PROTO_VERSION        4
  25
  26#define AUTOFS_PROTO_SUBVERSION         5
  27
  28/* Mask for expire behaviour */
  29#define AUTOFS_EXP_IMMEDIATE            1
  30#define AUTOFS_EXP_LEAVES               2
  31
  32/* New message type */
  33#define autofs_ptype_expire_multi       2       /* Expire entry (umount request) */
  34
  35/* v4 multi expire (via pipe) */
  36struct autofs_packet_expire_multi {
  37        struct autofs_packet_hdr hdr;
  38        autofs_wqt_t wait_queue_token;
  39        int len;
  40        char name[NAME_MAX+1];
  41};
  42
  43union autofs_packet_union {
  44        struct autofs_packet_hdr hdr;
  45        struct autofs_packet_missing missing;
  46        struct autofs_packet_expire expire;
  47        struct autofs_packet_expire_multi expire_multi;
  48};
  49
  50#define AUTOFS_IOC_EXPIRE_MULTI         _IOW(0x93,0x66,int)
  51#define AUTOFS_IOC_PROTOSUBVER          _IOR(0x93,0x67,int)
  52#define AUTOFS_IOC_ASKREGHOST           _IOR(0x93,0x68,int)
  53#define AUTOFS_IOC_TOGGLEREGHOST        _IOR(0x93,0x69,int)
  54#define AUTOFS_IOC_ASKUMOUNT            _IOR(0x93,0x70,int)
  55
  56
  57#endif /* _LINUX_AUTO_FS4_H */
  58