Linux kernel mirror (for testing)
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1/*
2 * Copyright 1997 Transmeta Corporation - All Rights Reserved
3 *
4 * This file is part of the Linux kernel and is made available under
5 * the terms of the GNU General Public License, version 2, or at your
6 * option, any later version, incorporated herein by reference.
7 *
8 * ----------------------------------------------------------------------- */
9
10
11#ifndef _UAPI_LINUX_AUTO_FS_H
12#define _UAPI_LINUX_AUTO_FS_H
13
14#include <linux/types.h>
15#ifndef __KERNEL__
16#include <sys/ioctl.h>
17#endif /* __KERNEL__ */
18
19
20/* This file describes autofs v3 */
21#define AUTOFS_PROTO_VERSION 3
22
23/* Range of protocol versions defined */
24#define AUTOFS_MAX_PROTO_VERSION AUTOFS_PROTO_VERSION
25#define AUTOFS_MIN_PROTO_VERSION AUTOFS_PROTO_VERSION
26
27/*
28 * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed
29 * back to the kernel via ioctl from userspace. On architectures where 32- and
30 * 64-bit userspace binaries can be executed it's important that the size of
31 * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we
32 * do not break the binary ABI interface by changing the structure size.
33 */
34#if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */
35typedef unsigned long autofs_wqt_t;
36#else
37typedef unsigned int autofs_wqt_t;
38#endif
39
40/* Packet types */
41#define autofs_ptype_missing 0 /* Missing entry (mount request) */
42#define autofs_ptype_expire 1 /* Expire entry (umount request) */
43
44struct autofs_packet_hdr {
45 int proto_version; /* Protocol version */
46 int type; /* Type of packet */
47};
48
49struct autofs_packet_missing {
50 struct autofs_packet_hdr hdr;
51 autofs_wqt_t wait_queue_token;
52 int len;
53 char name[NAME_MAX+1];
54};
55
56/* v3 expire (via ioctl) */
57struct autofs_packet_expire {
58 struct autofs_packet_hdr hdr;
59 int len;
60 char name[NAME_MAX+1];
61};
62
63#define AUTOFS_IOC_READY _IO(0x93, 0x60)
64#define AUTOFS_IOC_FAIL _IO(0x93, 0x61)
65#define AUTOFS_IOC_CATATONIC _IO(0x93, 0x62)
66#define AUTOFS_IOC_PROTOVER _IOR(0x93, 0x63, int)
67#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93, 0x64, compat_ulong_t)
68#define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93, 0x64, unsigned long)
69#define AUTOFS_IOC_EXPIRE _IOR(0x93, 0x65, struct autofs_packet_expire)
70
71#endif /* _UAPI_LINUX_AUTO_FS_H */