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/* $OpenBSD: kernfs.h,v 1.14 2003/09/23 16:51:13 millert Exp $ */
/* $NetBSD: kernfs.h,v 1.10 1996/02/09 22:40:21 christos Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software donated to Berkeley by
* Jan-Simon Pendry.
*
* 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. 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.
*
* @(#)kernfs.h 8.5 (Berkeley) 6/15/94
*/
#define _PATH_KERNFS "/kern" /* Default mountpoint */
#ifdef _KERNEL
struct kern_target {
u_char kt_type;
u_char kt_namlen;
char *kt_name;
void *kt_data;
#define KTT_NULL 1
#define KTT_TIME 5
#define KTT_INT 17
#define KTT_STRING 31
#define KTT_HOSTNAME 47
#define KTT_AVENRUN 53
#define KTT_DEVICE 71
#define KTT_MSGBUF 89
#define KTT_USERMEM 91
#define KTT_DOMAIN 95
#define KTT_PHYSMEM 99
#ifdef IPSEC
#define KTT_IPSECSPI 107
#endif
u_char kt_tag;
u_char kt_vtype;
mode_t kt_mode;
};
struct kernfs_node {
TAILQ_ENTRY(kernfs_node) list;
const struct kern_target *kf_kt;
struct vnode *kf_vnode;
#define kf_type kf_kt->kt_type
#define kf_namlen kf_kt->kt_namlen
#define kf_name kf_kt->kt_name
#define kf_data kf_kt->kt_data
#define kf_vtype kf_kt->kt_vtype
#define kf_mode kf_kt->kt_mode
#define kf_tag kf_kt->kt_tag
};
#define KERNTOV(kn) ((struct vnode *)(kn)->kf_vnode)
#define VTOKERN(vp) ((struct kernfs_node *)(vp)->v_data)
#define kernfs_fhtovp ((int (*)(struct mount *, struct fid *, \
struct vnode **))eopnotsupp)
#define kernfs_quotactl ((int (*)(struct mount *, int, uid_t, caddr_t, \
struct proc *))eopnotsupp)
#define kernfs_sysctl ((int (*)(int *, u_int, void *, size_t *, void *, \
size_t, struct proc *))eopnotsupp)
#define kernfs_vget ((int (*)(struct mount *, ino_t, struct vnode **)) \
eopnotsupp)
#define kernfs_vptofh ((int (*)(struct vnode *, struct fid *))eopnotsupp)
#define kernfs_sync ((int (*)(struct mount *, int, struct ucred *, \
struct proc *))nullop)
#define kernfs_checkexp ((int (*)(struct mount *, struct mbuf *, \
int *, struct ucred **))eopnotsupp)
int kernfs_init(struct vfsconf *);
int kernfs_poll(void *);
int kernfs_allocvp(const struct kern_target *, struct mount *, struct vnode **);
const struct kern_target *kernfs_findtarget(char *, int);
extern int (**kernfs_vnodeop_p)(void *);
extern const struct vfsops kernfs_vfsops;
extern dev_t rrootdev;
#endif /* _KERNEL */
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