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/*
* Copyright (c) 2001 Jonathan Lemon <jlemon@freebsd.org>
* Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
* Copyright (c) 1999 Pierre Beyssac
* Copyright (c) 1993 Jan-Simon Pendry
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed 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. 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.
*
* @(#)procfs.h 8.9 (Berkeley) 5/14/95
*
* $FreeBSD$
*/
struct pfsnode;
typedef int node_action_t __P((struct proc *curp, struct proc *p,
struct pfsnode *pfs, struct uio *uio));
struct node_data {
char *nd_name;
u_char nd_namlen;
u_char nd_type;
u_short nd_mode;
int nd_flags;
node_action_t *nd_action;
};
/*
* flag bits for nd_flags.
*/
#define PDEP 0x01 /* entry is process-dependent */
/*
* control data for the proc file system.
*/
struct pfsnode {
struct pfsnode *pfs_next; /* next on list */
struct vnode *pfs_vnode; /* vnode associated with this pfsnode */
struct node_data *pfs_nd; /* static initializer */
pid_t pfs_pid; /* associated process */
u_long pfs_flags; /* open flags */
u_long pfs_fileno; /* unique file id */
pid_t pfs_lockowner; /* pfs lock owner */
};
#define PROCFS_NAMELEN 8 /* max length of a filename component */
/*
* Kernel stuff follows
*/
#ifdef _KERNEL
#define KMEM_GROUP 2
#define PROCFS_FILENO(nd, pid) \
((nd)->nd_flags & PDEP) ? \
(((pid) + 1) << 4) | ((((u_long)(nd)) >> 3) & 0x0f) : \
(u_long)((nd)->nd_action)
/*
* Convert between pfsnode vnode
*/
#define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data)
#define PFSTOV(pfs) ((pfs)->pfs_vnode)
typedef struct vfs_namemap vfs_namemap_t;
struct vfs_namemap {
const char *nm_name;
int nm_val;
};
int vfs_getuserstr __P((struct uio *, char *, int *));
vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int));
/* <machine/reg.h> */
struct reg;
struct fpreg;
struct dbreg;
#define PFIND(pid) (pfind(pid))
void linprocfs_exit __P((struct proc *));
int linprocfs_freevp __P((struct vnode *));
int linprocfs_allocvp __P((struct mount *, struct vnode **, long,
struct node_data *));
node_action_t linprocfs_docmdline;
node_action_t linprocfs_docpuinfo;
node_action_t linprocfs_dodevices;
node_action_t linprocfs_doexelink;
node_action_t linprocfs_domeminfo;
node_action_t linprocfs_donetdev;
node_action_t linprocfs_doprocstat;
node_action_t linprocfs_doprocstatus;
node_action_t linprocfs_doselflink;
node_action_t linprocfs_dostat;
node_action_t linprocfs_douptime;
node_action_t linprocfs_doversion;
extern node_action_t procfs_domem;
extern node_action_t procfs_docmdline;
extern struct node_data root_dir[];
/* functions to check whether or not files should be displayed */
int linprocfs_validfile __P((struct proc *));
#define PROCFS_LOCKED 0x01
#define PROCFS_WANT 0x02
extern vop_t **linprocfs_vnodeop_p;
int linprocfs_root __P((struct mount *, struct vnode **));
int linprocfs_rw __P((struct vop_read_args *));
#endif /* _KERNEL */
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