/* -*- 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 _UAPI_LINUX_AUTO_FS_H#define _UAPI_LINUX_AUTO_FS_H #include <linux/types.h>#ifndef __KERNEL__#include <sys/ioctl.h>#endif /* __KERNEL__ */  /* 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;#elsetypedef 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 /* _UAPI_LINUX_AUTO_FS_H */