Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* -*- linux-c -*- ------------------------------------------------------- * |
2 | * | |
3 | * linux/include/linux/auto_fs.h | |
4 | * | |
5 | * Copyright 1997 Transmeta Corporation - All Rights Reserved | |
6 | * | |
7 | * This file is part of the Linux kernel and is made available under | |
8 | * the terms of the GNU General Public License, version 2, or at your | |
9 | * option, any later version, incorporated herein by reference. | |
10 | * | |
11 | * ----------------------------------------------------------------------- */ | |
12 | ||
13 | ||
14 | #ifndef _LINUX_AUTO_FS_H | |
15 | #define _LINUX_AUTO_FS_H | |
16 | ||
52bb25a6 | 17 | #include <linux/types.h> |
1da177e4 LT |
18 | #ifdef __KERNEL__ |
19 | #include <linux/fs.h> | |
20 | #include <linux/limits.h> | |
79955898 IK |
21 | #include <linux/ioctl.h> |
22 | #else | |
79955898 | 23 | #include <sys/ioctl.h> |
1da177e4 LT |
24 | #endif /* __KERNEL__ */ |
25 | ||
1da177e4 LT |
26 | /* This file describes autofs v3 */ |
27 | #define AUTOFS_PROTO_VERSION 3 | |
28 | ||
29 | /* Range of protocol versions defined */ | |
30 | #define AUTOFS_MAX_PROTO_VERSION AUTOFS_PROTO_VERSION | |
31 | #define AUTOFS_MIN_PROTO_VERSION AUTOFS_PROTO_VERSION | |
32 | ||
33 | /* | |
34 | * Architectures where both 32- and 64-bit binaries can be executed | |
35 | * on 64-bit kernels need this. This keeps the structure format | |
36 | * uniform, and makes sure the wait_queue_token isn't too big to be | |
37 | * passed back down to the kernel. | |
38 | * | |
39 | * This assumes that on these architectures: | |
40 | * mode 32 bit 64 bit | |
41 | * ------------------------- | |
42 | * int 32 bit 32 bit | |
43 | * long 32 bit 64 bit | |
44 | * | |
45 | * If so, 32-bit user-space code should be backwards compatible. | |
46 | */ | |
47 | ||
48 | #if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \ | |
49 | || defined(__powerpc__) || defined(__s390__) | |
50 | typedef unsigned int autofs_wqt_t; | |
51 | #else | |
52 | typedef unsigned long autofs_wqt_t; | |
53 | #endif | |
54 | ||
55 | /* Packet types */ | |
56 | #define autofs_ptype_missing 0 /* Missing entry (mount request) */ | |
57 | #define autofs_ptype_expire 1 /* Expire entry (umount request) */ | |
58 | ||
59 | struct autofs_packet_hdr { | |
60 | int proto_version; /* Protocol version */ | |
61 | int type; /* Type of packet */ | |
62 | }; | |
63 | ||
64 | struct autofs_packet_missing { | |
65 | struct autofs_packet_hdr hdr; | |
66 | autofs_wqt_t wait_queue_token; | |
67 | int len; | |
68 | char name[NAME_MAX+1]; | |
69 | }; | |
70 | ||
71 | /* v3 expire (via ioctl) */ | |
72 | struct autofs_packet_expire { | |
73 | struct autofs_packet_hdr hdr; | |
74 | int len; | |
75 | char name[NAME_MAX+1]; | |
76 | }; | |
77 | ||
78 | #define AUTOFS_IOC_READY _IO(0x93,0x60) | |
79 | #define AUTOFS_IOC_FAIL _IO(0x93,0x61) | |
80 | #define AUTOFS_IOC_CATATONIC _IO(0x93,0x62) | |
81 | #define AUTOFS_IOC_PROTOVER _IOR(0x93,0x63,int) | |
82 | #define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93,0x64,unsigned long) | |
83 | #define AUTOFS_IOC_EXPIRE _IOR(0x93,0x65,struct autofs_packet_expire) | |
84 | ||
85 | #endif /* _LINUX_AUTO_FS_H */ |