projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 607ca46e DH |
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 _UAPI_LINUX_AUTO_FS_H | |
| 15 | #define _UAPI_LINUX_AUTO_FS_H | |
| 16 | ||
| 17 | #include <linux/types.h> | |
| 18 | #ifndef __KERNEL__ | |
| 19 | #include <sys/ioctl.h> | |
| 20 | #endif /* __KERNEL__ */ | |
| 21 | ||
| 22 | ||
| 23 | /* This file describes autofs v3 */ | |
| 24 | #define AUTOFS_PROTO_VERSION 3 | |
| 25 | ||
| 26 | /* Range of protocol versions defined */ | |
| 27 | #define AUTOFS_MAX_PROTO_VERSION AUTOFS_PROTO_VERSION | |
| 28 | #define AUTOFS_MIN_PROTO_VERSION AUTOFS_PROTO_VERSION | |
| 29 | ||
| 30 | /* | |
| 4f4ffc3a HD |
31 | * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed |
| 32 | * back to the kernel via ioctl from userspace. On architectures where 32- and | |
| 33 | * 64-bit userspace binaries can be executed it's important that the size of | |
| 34 | * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we | |
| 35 | * do not break the binary ABI interface by changing the structure size. | |
| 607ca46e | 36 | */ |
| 4f4ffc3a | 37 | #if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */ |
| 607ca46e | 38 | typedef unsigned long autofs_wqt_t; |
| 4f4ffc3a HD |
39 | #else |
| 40 | typedef unsigned int autofs_wqt_t; | |
| 607ca46e DH |
41 | #endif |
| 42 | ||
| 43 | /* Packet types */ | |
| 44 | #define autofs_ptype_missing 0 /* Missing entry (mount request) */ | |
| 45 | #define autofs_ptype_expire 1 /* Expire entry (umount request) */ | |
| 46 | ||
| 47 | struct autofs_packet_hdr { | |
| 48 | int proto_version; /* Protocol version */ | |
| 49 | int type; /* Type of packet */ | |
| 50 | }; | |
| 51 | ||
| 52 | struct autofs_packet_missing { | |
| 53 | struct autofs_packet_hdr hdr; | |
| 54 | autofs_wqt_t wait_queue_token; | |
| 55 | int len; | |
| 56 | char name[NAME_MAX+1]; | |
| 57 | }; | |
| 58 | ||
| 59 | /* v3 expire (via ioctl) */ | |
| 60 | struct autofs_packet_expire { | |
| 61 | struct autofs_packet_hdr hdr; | |
| 62 | int len; | |
| 63 | char name[NAME_MAX+1]; | |
| 64 | }; | |
| 65 | ||
| 66 | #define AUTOFS_IOC_READY _IO(0x93,0x60) | |
| 67 | #define AUTOFS_IOC_FAIL _IO(0x93,0x61) | |
| 68 | #define AUTOFS_IOC_CATATONIC _IO(0x93,0x62) | |
| 69 | #define AUTOFS_IOC_PROTOVER _IOR(0x93,0x63,int) | |
| 70 | #define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93,0x64,compat_ulong_t) | |
| 71 | #define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93,0x64,unsigned long) | |
| 72 | #define AUTOFS_IOC_EXPIRE _IOR(0x93,0x65,struct autofs_packet_expire) | |
| 73 | ||
| 74 | #endif /* _UAPI_LINUX_AUTO_FS_H */ |