b47ed6cbf6
each node in order to make it easier to add new entries. Rewrite the internal directory structure so that it is possible to have independent subdirectories. Utilize this to add /proc/net/dev. Reviewed by: DES
146 lines
4.6 KiB
C
146 lines
4.6 KiB
C
/*
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* Copyright (c) 2001 Jonathan Lemon <jlemon@freebsd.org>
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* Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
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* Copyright (c) 1999 Pierre Beyssac
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* Copyright (c) 1993 Jan-Simon Pendry
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)procfs.h 8.9 (Berkeley) 5/14/95
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*
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* $FreeBSD$
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*/
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struct pfsnode;
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typedef int node_action_t __P((struct proc *curp, struct proc *p,
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struct pfsnode *pfs, struct uio *uio));
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struct node_data {
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char *nd_name;
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u_char nd_namlen;
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u_char nd_type;
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u_short nd_mode;
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int nd_flags;
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node_action_t *nd_action;
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};
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/*
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* flag bits for nd_flags.
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*/
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#define PDEP 0x01 /* entry is process-dependent */
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/*
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* control data for the proc file system.
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*/
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struct pfsnode {
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struct pfsnode *pfs_next; /* next on list */
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struct vnode *pfs_vnode; /* vnode associated with this pfsnode */
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struct node_data *pfs_nd; /* static initializer */
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pid_t pfs_pid; /* associated process */
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u_long pfs_flags; /* open flags */
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u_long pfs_fileno; /* unique file id */
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pid_t pfs_lockowner; /* pfs lock owner */
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};
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#define PROCFS_NAMELEN 8 /* max length of a filename component */
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/*
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* Kernel stuff follows
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*/
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#ifdef _KERNEL
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#define KMEM_GROUP 2
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#define PROCFS_FILENO(nd, pid) \
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((nd)->nd_flags & PDEP) ? \
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(((pid) + 1) << 4) | ((((u_long)(nd)) >> 3) & 0x0f) : \
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(u_long)((nd)->nd_action)
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/*
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* Convert between pfsnode vnode
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*/
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#define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data)
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#define PFSTOV(pfs) ((pfs)->pfs_vnode)
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typedef struct vfs_namemap vfs_namemap_t;
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struct vfs_namemap {
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const char *nm_name;
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int nm_val;
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};
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int vfs_getuserstr __P((struct uio *, char *, int *));
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vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int));
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/* <machine/reg.h> */
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struct reg;
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struct fpreg;
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struct dbreg;
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#define PFIND(pid) ((pid) ? pfind(pid) : &proc0)
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void linprocfs_exit __P((struct proc *));
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int linprocfs_freevp __P((struct vnode *));
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int linprocfs_allocvp __P((struct mount *, struct vnode **, long,
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struct node_data *));
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node_action_t linprocfs_docmdline;
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node_action_t linprocfs_docpuinfo;
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node_action_t linprocfs_dodevices;
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node_action_t linprocfs_doexelink;
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node_action_t linprocfs_domeminfo;
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node_action_t linprocfs_donetdev;
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node_action_t linprocfs_doprocstat;
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node_action_t linprocfs_doprocstatus;
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node_action_t linprocfs_doselflink;
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node_action_t linprocfs_dostat;
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node_action_t linprocfs_douptime;
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node_action_t linprocfs_doversion;
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extern node_action_t procfs_domem;
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extern node_action_t procfs_docmdline;
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extern struct node_data root_dir[];
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/* functions to check whether or not files should be displayed */
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int linprocfs_validfile __P((struct proc *));
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#define PROCFS_LOCKED 0x01
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#define PROCFS_WANT 0x02
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extern vop_t **linprocfs_vnodeop_p;
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int linprocfs_root __P((struct mount *, struct vnode **));
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int linprocfs_rw __P((struct vop_read_args *));
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#endif /* _KERNEL */
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