c9243f5bdd
Handling of autofs ioctl numbers does not need to be generic and can easily be done directly in autofs itself. This also pushes the BKL into autofs and autofs4 ioctl methods. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Ian Kent <raven@themaw.net> Cc: Autofs <autofs@linux.kernel.org> Cc: John Kacur <jkacur@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* -*- 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 _LINUX_AUTO_FS_H
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#define _LINUX_AUTO_FS_H
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#include <linux/types.h>
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#ifdef __KERNEL__
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#include <linux/fs.h>
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#include <linux/limits.h>
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#include <linux/ioctl.h>
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#else
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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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* Architectures where both 32- and 64-bit binaries can be executed
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* on 64-bit kernels need this. This keeps the structure format
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* uniform, and makes sure the wait_queue_token isn't too big to be
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* passed back down to the kernel.
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*
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* This assumes that on these architectures:
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* mode 32 bit 64 bit
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* -------------------------
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* int 32 bit 32 bit
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* long 32 bit 64 bit
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*
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* If so, 32-bit user-space code should be backwards compatible.
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*/
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#if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \
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|| defined(__powerpc__) || defined(__s390__)
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typedef unsigned int autofs_wqt_t;
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#else
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typedef unsigned long 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 /* _LINUX_AUTO_FS_H */
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