/* * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)specdev.h 8.2 (Berkeley) 2/2/94 * $Id: specdev.h,v 1.2 1994/08/02 07:45:30 davidg Exp $ */ /* * This structure defines the information maintained about * special devices. It is allocated in checkalias and freed * in vgone. */ struct specinfo { struct vnode **si_hashchain; struct vnode *si_specnext; long si_flags; dev_t si_rdev; }; /* * Exported shorthand */ #define v_rdev v_specinfo->si_rdev #define v_hashchain v_specinfo->si_hashchain #define v_specnext v_specinfo->si_specnext #define v_specflags v_specinfo->si_flags /* * Flags for specinfo */ #define SI_MOUNTEDON 0x0001 /* block special device is mounted on */ /* * Special device management */ #define SPECHSZ 64 #if ((SPECHSZ&(SPECHSZ-1)) == 0) #define SPECHASH(rdev) (((rdev>>5)+(rdev))&(SPECHSZ-1)) #else #define SPECHASH(rdev) (((unsigned)((rdev>>5)+(rdev)))%SPECHSZ) #endif extern struct vnode *speclisth[SPECHSZ]; /* * Prototypes for special file operations on vnodes. */ extern int (**spec_vnodeop_p)(); struct nameidata; struct componentname; struct ucred; struct flock; struct buf; struct uio; int spec_badop(), spec_ebadf(); int spec_lookup __P((struct vop_lookup_args *)); #define spec_create ((int (*) __P((struct vop_create_args *)))spec_badop) #define spec_mknod ((int (*) __P((struct vop_mknod_args *)))spec_badop) int spec_open __P((struct vop_open_args *)); int spec_close __P((struct vop_close_args *)); #define spec_access ((int (*) __P((struct vop_access_args *)))spec_ebadf) #define spec_getattr ((int (*) __P((struct vop_getattr_args *)))spec_ebadf) #define spec_setattr ((int (*) __P((struct vop_setattr_args *)))spec_ebadf) int spec_read __P((struct vop_read_args *)); int spec_write __P((struct vop_write_args *)); int spec_ioctl __P((struct vop_ioctl_args *)); int spec_select __P((struct vop_select_args *)); #define spec_mmap ((int (*) __P((struct vop_mmap_args *)))spec_badop) int spec_fsync __P((struct vop_fsync_args *)); #define spec_seek ((int (*) __P((struct vop_seek_args *)))spec_badop) #define spec_remove ((int (*) __P((struct vop_remove_args *)))spec_badop) #define spec_link ((int (*) __P((struct vop_link_args *)))spec_badop) #define spec_rename ((int (*) __P((struct vop_rename_args *)))spec_badop) #define spec_mkdir ((int (*) __P((struct vop_mkdir_args *)))spec_badop) #define spec_rmdir ((int (*) __P((struct vop_rmdir_args *)))spec_badop) #define spec_symlink ((int (*) __P((struct vop_symlink_args *)))spec_badop) #define spec_readdir ((int (*) __P((struct vop_readdir_args *)))spec_badop) #define spec_readlink ((int (*) __P((struct vop_readlink_args *)))spec_badop) #define spec_abortop ((int (*) __P((struct vop_abortop_args *)))spec_badop) #define spec_inactive ((int (*) __P((struct vop_inactive_args *)))nullop) #define spec_reclaim ((int (*) __P((struct vop_reclaim_args *)))nullop) int spec_lock __P((struct vop_lock_args *)); int spec_unlock __P((struct vop_unlock_args *)); int spec_bmap __P((struct vop_bmap_args *)); int spec_strategy __P((struct vop_strategy_args *)); int spec_print __P((struct vop_print_args *)); #define spec_islocked ((int (*) __P((struct vop_islocked_args *)))nullop) int spec_pathconf __P((struct vop_pathconf_args *)); int spec_advlock __P((struct vop_advlock_args *)); #define spec_blkatoff ((int (*) __P((struct vop_blkatoff_args *)))spec_badop) #define spec_valloc ((int (*) __P((struct vop_valloc_args *)))spec_badop) #define spec_reallocblks \ ((int (*) __P((struct vop_reallocblks_args *)))spec_badop) #define spec_vfree ((int (*) __P((struct vop_vfree_args *)))spec_badop) #define spec_truncate ((int (*) __P((struct vop_truncate_args *)))nullop) #define spec_update ((int (*) __P((struct vop_update_args *)))nullop) #define spec_bwrite ((int (*) __P((struct vop_bwrite_args *)))nullop)