diff options
Diffstat (limited to 'sys/miscfs/specfs/specdev.h')
| -rw-r--r-- | sys/miscfs/specfs/specdev.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/sys/miscfs/specfs/specdev.h b/sys/miscfs/specfs/specdev.h new file mode 100644 index 0000000..a13b66e --- /dev/null +++ b/sys/miscfs/specfs/specdev.h @@ -0,0 +1,127 @@ +/* + * 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 + */ + +/* + * 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 + +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) |
