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/*
* 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
* $FreeBSD$
*/
/*
* 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 vop_t **spec_vnodeop_p;
struct nameidata;
struct componentname;
struct ucred;
struct flock;
struct buf;
struct uio;
int spec_badop __P((void));
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_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 *));
int spec_getpages __P((struct vop_getpages_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)
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