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