| /* -*- linux-c -*- ------------------------------------------------------- * |
| * |
| * linux/include/linux/auto_fs.h |
| * |
| * Copyright 1997 Transmeta Corporation - All Rights Reserved |
| * |
| * This file is part of the Linux kernel and is made available under |
| * the terms of the GNU General Public License, version 2, or at your |
| * option, any later version, incorporated herein by reference. |
| * |
| * ----------------------------------------------------------------------- */ |
| |
| |
| #ifndef _LINUX_AUTO_FS_H |
| #define _LINUX_AUTO_FS_H |
| |
| #include <linux/types.h> |
| #include <sys/ioctl.h> |
| |
| /* This file describes autofs v3 */ |
| #define AUTOFS_PROTO_VERSION 3 |
| |
| /* Range of protocol versions defined */ |
| #define AUTOFS_MAX_PROTO_VERSION AUTOFS_PROTO_VERSION |
| #define AUTOFS_MIN_PROTO_VERSION AUTOFS_PROTO_VERSION |
| |
| /* |
| * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed |
| * back to the kernel via ioctl from userspace. On architectures where 32- and |
| * 64-bit userspace binaries can be executed it's important that the size of |
| * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we |
| * do not break the binary ABI interface by changing the structure size. |
| */ |
| #if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */ |
| typedef unsigned long autofs_wqt_t; |
| #else |
| typedef unsigned int autofs_wqt_t; |
| #endif |
| |
| /* Packet types */ |
| #define autofs_ptype_missing 0 /* Missing entry (mount request) */ |
| #define autofs_ptype_expire 1 /* Expire entry (umount request) */ |
| |
| struct autofs_packet_hdr { |
| int proto_version; /* Protocol version */ |
| int type; /* Type of packet */ |
| }; |
| |
| struct autofs_packet_missing { |
| struct autofs_packet_hdr hdr; |
| autofs_wqt_t wait_queue_token; |
| int len; |
| char name[NAME_MAX+1]; |
| }; |
| |
| /* v3 expire (via ioctl) */ |
| struct autofs_packet_expire { |
| struct autofs_packet_hdr hdr; |
| int len; |
| char name[NAME_MAX+1]; |
| }; |
| |
| #define AUTOFS_IOC_READY _IO(0x93,0x60) |
| #define AUTOFS_IOC_FAIL _IO(0x93,0x61) |
| #define AUTOFS_IOC_CATATONIC _IO(0x93,0x62) |
| #define AUTOFS_IOC_PROTOVER _IOR(0x93,0x63,int) |
| #define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93,0x64,compat_ulong_t) |
| #define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93,0x64,unsigned long) |
| #define AUTOFS_IOC_EXPIRE _IOR(0x93,0x65,struct autofs_packet_expire) |
| |
| #endif /* _LINUX_AUTO_FS_H */ |