/* -*- 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 #ifdef __KERNEL__#include <linux/fs.h>#include <linux/limits.h>#include <asm/types.h>#endif /* __KERNEL__ */ #include <linux/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 /* * Architectures where both 32- and 64-bit binaries can be executed * on 64-bit kernels need this.  This keeps the structure format * uniform, and makes sure the wait_queue_token isn't too big to be * passed back down to the kernel. * * This assumes that on these architectures: * mode     32 bit    64 bit * ------------------------- * int      32 bit    32 bit * long     32 bit    64 bit * * If so, 32-bit user-space code should be backwards compatible. */ #if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \ || defined(__powerpc__) || defined(__s390__)typedef unsigned int autofs_wqt_t;#elsetypedef unsigned long 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_SETTIMEOUT _IOWR(0x93,0x64,unsigned long)#define AUTOFS_IOC_EXPIRE     _IOR(0x93,0x65,struct autofs_packet_expire) #endif /* _LINUX_AUTO_FS_H */