2 * linux/include/linux/auto_fs4.h
4 * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
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.
11 #ifndef _LINUX_AUTO_FS4_H
12 #define _LINUX_AUTO_FS4_H
14 /* Include common v3 definitions */
15 #include <linux/auto_fs.h>
17 /* autofs v4 definitions */
18 #undef AUTOFS_PROTO_VERSION
19 #undef AUTOFS_MIN_PROTO_VERSION
20 #undef AUTOFS_MAX_PROTO_VERSION
22 #define AUTOFS_PROTO_VERSION 4
23 #define AUTOFS_MIN_PROTO_VERSION 3
24 #define AUTOFS_MAX_PROTO_VERSION 4
26 #define AUTOFS_PROTO_SUBVERSION 7
28 /* Mask for expire behaviour */
29 #define AUTOFS_EXP_IMMEDIATE 1
30 #define AUTOFS_EXP_LEAVES 2
32 /* New message type */
33 #define autofs_ptype_expire_multi 2 /* Expire entry (umount request) */
35 /* v4 multi expire (via pipe) */
36 struct autofs_packet_expire_multi {
37 struct autofs_packet_hdr hdr;
38 autofs_wqt_t wait_queue_token;
40 char name[NAME_MAX+1];
43 union 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;
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)
57 #endif /* _LINUX_AUTO_FS4_H */